Target Paper Changing Machine Capable of Collecting and Releasing Paper Rolls Front and Back and Accurately Feeding Paper, and Shooting System

Abstract

A target paper changing machine includes a paper releasing box, a paper collecting box, paper releasing equipment, paper collecting equipment, a backing plate assembly, target paper, an accurate paper feeding mechanism and a system control unit. The paper releasing box and the paper collecting box are arranged in parallel front and back. The backing plate assembly is arranged between the paper releasing box and the paper collecting box and are fixedly arranged above the two boxes. The paper releasing equipment is arranged in the paper releasing box, and the paper collecting equipment is arranged in the paper collecting box. One end of the target paper is connected with the paper releasing equipment, and the other end bypasses the backing plate assembly and is connected with the paper collecting equipment. The accurate paper feeding mechanism is arranged on the paper releasing equipment and/or the paper collecting equipment.

1 . A target paper changing machine capable of collecting and releasing paper rolls front and back and accurately feeding paper, wherein including a paper releasing box, a paper collecting box, paper releasing equipment, paper collecting equipment, a backing plate assembly, target paper, an accurate paper feeding mechanism and a system control unit; wherein
 the paper releasing box and the paper collecting box are arranged in parallel front and back; the backing plate assembly is arranged between the paper releasing box and the paper collecting box and arranged above the paper releasing box and the paper collecting box; the paper releasing equipment is arranged in the paper releasing box, and the paper collecting equipment is arranged in the paper collecting box; one end of the target paper is connected with the paper releasing equipment, and the other end of the target paper bypasses a front side and a rear side of the backing plate assembly and is connected with the paper collecting equipment;   the accurate paper feeding mechanism is arranged on the paper releasing equipment and/or the paper collecting equipment, and is configured to limit feeding process of the target paper in collecting and releasing processes, and collect feeding data;   the system control unit is connected to the paper releasing equipment, the paper collecting equipment and the accurate paper feeding mechanism.   
     
     
         2 . The target paper changing machine capable of collecting and releasing paper rolls front and back and accurately feeding paper according to  claim 1 , wherein the paper releasing equipment and the paper collecting equipment each include a reel, an adjustable speed motor and a steering drum; wherein the reel is in linkage connection with the adjustable speed motor, and the adjustable speed motor drives the reel to rotate; the target paper to be released or collected is wound around the reel and is released or collected along with the rotation of the reel. 
     
     
         3 . The target paper changing machine capable of collecting and releasing paper rolls front and back and accurately feeding paper according to  claim 1 , wherein the accurate paper feeding mechanism includes a plurality of rivets, a counting disk and a through-beam laser sensor;
 the rivets are uniformly and fixedly arranged at a periphery of an end portion of the steering drum of the paper releasing equipment and/or the paper collecting equipment, and the rivets are matched with rivet holes formed in an edge of the target paper in diameter and spacing;   the counting disk is arranged outside the steering drum, is arranged in parallel to an end surface of the steering drum, and is fixedly connected with the steering drum;   a plurality of counting slits are uniformly formed in an outer edge of the counting disk, and the counting slits are in one-to-one correspondence to the rivets; the through-beam laser sensor is arranged at the outer edge of the counting disk and is configured to count the counting slits;   the through-beam laser sensor is connected to the system control unit and is configured to transmit counting data to the system control unit.   
     
     
         4 . The target paper changing machine capable of collecting and releasing paper rolls front and back and accurately feeding paper according to  claim 3 , wherein the through-beam laser sensor includes a U-shaped probe;
 the outer edge of the counting disk is inserted into an opening of the U-shaped probe; the U-shaped probe is fixedly connected to the paper releasing box and/or the paper collecting box;   the opening of the U-shaped probe is provided with a laser emitter on one side and with a laser receiver on the other side; when any of the counting slits of the counting disk rotates to the U-shaped probe, the laser receiver receives a laser signal so as to realize counting.   
     
     
         5 . The target paper changing machine capable of collecting and releasing paper rolls front and back and accurately feeding paper according to  claim 1 , wherein the backing plate assembly includes a backing plate support frame, two quick-detachable support rods, a backing plate and a guide shaft; wherein
 the two quick-detachable support rods are arranged at two sides of the backing plate respectively and are fixedly connected with the backing plate; the guide shaft is arranged at a top of the backing plate, and two ends of the guide shaft are rotatably connected with the quick-detachable support rods at the corresponding ends respectively;   the backing plate support frame includes two vertical support rods and one horizontal support rod; the two vertical support rods are arranged at and fixedly connected with two ends of the horizontal support rod respectively; bottom ends of the two vertical support rods are fixedly connected with upper surfaces of the paper releasing box and the paper collecting box, and top ends of the two vertical support rods are provided with longitudinal insertion holes; the two quick-detachable support rods are respectively inserted into the longitudinal insertion holes.   
     
     
         6 . The target paper changing machine capable of collecting and releasing paper rolls front and back and accurately feeding paper according to  claim 2 , wherein further including a target paper roll changing and adjusting mechanism arranged at the reel; wherein
 the target paper roll changing and adjusting mechanism includes a first movable gear, a second movable gear, a first target paper roll mounting and dismounting structure, a second target paper roll mounting and dismounting structure, a beveled target paper support frame, and a third target paper roll mounting and dismounting structure; wherein   the first movable gear and the second movable gear are respectively inserted into two ends of a hollow target paper roll to play a role in fixing the target paper roll;   the second target paper roll mounting and dismounting structure is arranged below the first movable gear, and drives the first movable gear to horizontally move leftward and rightward, so as to realize combination and complete separation of the first movable gear and the hollow target paper roll;   the first target paper roll mounting and dismounting structure is arranged outside the first movable gear, and drives the first movable gear to horizontally move slightly leftward and rightward, thereby adjusting a degree of combination between the first movable gear and the hollow target paper roll;   the third target paper roll mounting and dismounting structure is arranged between the first movable gear and the second movable gear, is fixedly connected with the beveled target paper support frame, and drives the beveled target paper support frame to horizontally move forward and backward; the beveled target paper support frame is arranged below the target paper roll.   
     
     
         7 . The target paper changing machine capable of collecting and releasing paper rolls front and back and accurately feeding paper according to  claim 6 , wherein the first target paper roll mounting and dismounting structure includes a first adjusting knob, a vertical strong spring, a horizontal strong spring and a force steering assembly; a lower end of the first adjusting knob is connected with the vertical strong spring, a bottom end of the vertical strong spring is connected with one end of the force steering assembly, the other end of the force steering assembly is connected with one end of the horizontal strong spring, and the other end of the horizontal strong spring is connected with the first movable gear. 
     
     
         8 . The target paper changing machine capable of collecting and releasing paper rolls front and back and accurately feeding paper according to  claim 6 , wherein the second target paper roll mounting and dismounting structure includes a first movable block, a first horizontal adjusting rod, two first positioning rods, a second adjusting knob, a first adjusting rod supporting block and a second adjusting rod supporting block; the first movable gear is arranged on the first movable block; the first movable block is internally provided with three horizontal through holes, including one threaded hole and two positioning holes with smooth inner walls; the first horizontal adjusting rod provided with an external thread is threadably inserted into the threaded hole, and the two first positioning rods with smooth surfaces are respectively inserted into the two positioning holes; an inner end of the first horizontal adjusting rod and inner ends of the two first positioning rods are connected with the first adjusting rod supporting block, the other ends of the two first positioning rods are connected with the second adjusting rod supporting block, and the other end of the first horizontal adjusting rod passes through the second adjusting rod supporting block and is then fixedly connected with the second adjusting knob. 
     
     
         9 . The target paper changing machine capable of collecting and releasing paper rolls front and back and accurately feeding paper according to  claim 6 , wherein the third target paper roll mounting and dismounting structure includes a second movable block, a second horizontal adjusting rod, two second positioning rods, a third adjusting knob, a third adjusting rod supporting block and a fourth adjusting rod supporting block; the beveled target paper support frame is arranged on the second movable block; the second movable block is internally provided with three horizontal through holes, including one threaded hole and two positioning holes with smooth inner walls; the second horizontal adjusting rod provided with an external thread is threadably inserted into the threaded hole, and the two second positioning rods with smooth surfaces are respectively inserted into the two positioning holes; an inner end of the second horizontal adjusting rod and inner ends of the two second positioning rods are connected with the third adjusting rod supporting block, the other ends of the two second positioning rods are connected with the fourth adjusting rod supporting block, and the other end of the second horizontal adjusting rod passes through the fourth adjusting rod supporting block and is then fixedly connected with the third adjusting knob. 
     
     
         10 . The target paper changing machine capable of collecting and releasing paper rolls front and back and accurately feeding paper according to  claim 1 , wherein further including a bullet collecting box arranged at a back side of the backing plate. 
     
     
         11 . The target paper changing machine capable of collecting and releasing paper rolls front and back and accurately feeding paper according to  claim 10 , wherein the bullet collecting box is a closed rectangular box, and two sides of a front wall are each provided with an outward-turned plate-shaped insertion lug; the back side of the backing plate is provided with two vertical insertion grooves arranged in parallel, which are open at the top and inward; the insertion lugs are inserted into the insertion grooves on the corresponding sides from top to bottom;
 the front wall is made of a material that bullets can easily penetrate, and a back wall is made of a bulletproof material.   
     
     
         12 . The target paper changing machine capable of collecting and releasing paper rolls front and back and accurately feeding paper according to  claim 1 , wherein further including a lightweight bulletproof plate;
 the lightweight bulletproof plate is arranged on a front wall of the paper releasing box and is made of a bulletproof material.   
     
     
         13 . The target paper changing machine capable of collecting and releasing paper rolls front and back and accurately feeding paper according to  claim 11 , wherein the bulletproof material includes a rubber bullet-absorbing plate and a bulletproof steel plate that are sequentially stacked in a direction of bullet firing. 
     
     
         14 . A shooting system, wherein including the target paper changing machine capable of collecting and releasing paper rolls front and back and accurately feeding paper according to  claim 1 , an image acquisition device arranged in front of the target paper changing machine, and a sound generating device arranged on the target paper changing machine; the image acquisition device acquires a real-time shooting image and transmits the real-time shooting image to the system control unit of the target paper changing machine for processing to obtain a real-time shooting score, and the score is reported by the sound generating device.