A production detection device for a pull-back car, its test strip and detection method

Abstract

The present invention belongs to the technical field of toy production inspection, and particularly relates to a production inspection device for a pull-back car, its test belt and inspection method; the inspection device includes: a slow conveyor belt, a fast conveyor belt, a transmission belt and a test belt, one end of the slow conveyor belt is connected to the fast conveyor belt, the other end of the fast conveyor belt is connected to the test belt, a transmission belt is arranged above the fast conveyor belt, the transmission belt completely covers the fast conveyor belt, one end of the transmission belt has an overlapping area with the slow conveyor belt, the other end of the transmission belt has an overlapping area with the test belt, and the lengths of both overlapping areas are not less than the length of the car; the inspection method includes steps of car conveying, car energy storage, car release and car testing; the present invention can realize automatic inspection of the pull-back car, improve the inspection efficiency and save production costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of toy production and detection, and particularly relates to a production detection device for a pull-back car, a test belt thereof, and a detection method. Background Art

[0002] A pull-back car is a toy car that can store energy and move. It uses an internal pull-back spring as the energy storage structure. By manually pressing the car on the ground and dragging it backward, the wheels of the car rotate backward, and at the same time, the internal pull-back spring is driven to store energy. After releasing the hand, the car can rely on the energy stored in its internal pull-back spring to drive the car forward.

[0003] During the production process of pull-back cars, it is necessary to conduct quality inspections on the produced cars to ensure that the pull-back spring energy storage structure and wheel structure inside the cars can be used normally. During the inspection, a special person needs to manually pick up the car, press it down and drag it backward, and observe the running state of the car after release to determine whether the pull-back car is qualified. This detection method not only has a large labor intensity but also has a low detection efficiency. Summary of the Invention

[0004] The present invention overcomes the above-mentioned deficiencies of the prior art and provides a production detection device for a pull-back car, a test belt thereof, and a detection method, which can realize the automatic energy storage, release, and testing of the car, without manual detection, reducing the labor intensity and improving the detection efficiency.

[0005] The technical solution of the present invention is as follows:

[0006] A production detection device for a pull-back car includes: a slow conveyor belt, a fast conveyor belt, a conveyor belt, and a test belt. One end of the slow conveyor belt is connected to one end of the fast conveyor belt, and the other end of the fast conveyor belt is connected to the test belt. A conveyor belt is arranged above the fast conveyor belt. The conveyor belt completely covers the fast conveyor belt. One end of the conveyor belt has an overlapping area with the slow conveyor belt, and the other end of the conveyor belt has an overlapping area with the test belt. The lengths of both overlapping areas are not less than the length of the car.

[0007] Further, the conveyor belt includes: a conveyor belt frame body, a conveyor belt, conveyor belt wheels, pulley shafts, and a conveyor belt motor. Two conveyor belt wheels are spaced apart on one pulley shaft to form a conveyor belt roller. At least two conveyor belt rollers are arranged inside the conveyor belt. The pulley shafts of each conveyor belt roller are rotatably connected to the conveyor belt frame body. The pulley shaft of one of the conveyor belt rollers is connected to the conveyor belt motor.

[0008] Further, the conveyor belt further includes: a lifting slider, a stabilizing slider, and a lifting frame. A lifting slider is fixedly connected to the conveyor belt frame body. A stabilizing slider is provided on each of the two sides of the lifting slider. The stabilizing sliders are slidably arranged on the lifting frame. The lifting slider is sleeved on a lead screw rotatably arranged on the lifting frame.

[0009] Further, the slow conveyor belt includes: a conveyor belt frame body, a conveyor belt, conveyor belt rollers, a load-bearing plate, and a conveyor belt motor. Two conveyor belt rollers are arranged inside the conveyor belt. Both of the two conveyor belt rollers are rotatably connected to the conveyor belt frame body. One of the conveyor belt rollers is connected to the conveyor belt motor. A load-bearing plate is arranged at the bottom of one side of the upper layer of the conveyor belt.

[0010] Further, it further includes: a detection table, which includes: a tabletop, a recycling box, and a retaining strip. The slow conveyor belt, the fast conveyor belt, the conveyor belt, and the test belt are all arranged on the tabletop. A recycling box is correspondingly arranged at the bottom of the tabletop and corresponding to the test belt. Two retaining strips are oppositely arranged on the slow conveyor belt and the fast conveyor belt.

[0011] Further, the test belt includes: a frame, a sliding table, a sliding groove, a toothed belt groove, a toothed belt, a sliding belt, a cross beam, a rotating shaft, a gear, a rotating shaft motor, a sliding seat, and a sliding track. The frame is a rectangular frame with a hollow interior. A sliding table is arranged inside the frame. The sliding table divides the interior of the frame into two notches. The notch on the left side is the left deviation falling inlet, and the notch on the right side is the right deviation falling inlet. The bottom of the sliding table is the middle falling inlet. The two ends of the sliding table are respectively slidably arranged in the sliding grooves on the inner side of the frame. A toothed belt groove is arranged on the sliding table. A toothed belt is arranged in the toothed belt groove. A sliding belt is sleeved on the sliding table outside the toothed belt groove. The toothed belt is fixedly connected to the sliding belt. A cross beam parallel to the sliding table is fixedly connected inside the frame. The upper surface of the cross beam is aligned with the upper surfaces of the toothed belt and the sliding belt. The cross beam is fixedly connected to the toothed belt and the sliding belt. A rotating shaft is rotatably arranged inside the sliding table. A gear corresponding to the toothed belt is arranged on the rotating shaft. One end of the rotating shaft passes through the sliding table and the sliding groove in sequence and is connected to the rotating shaft motor inside the frame. A sliding seat is arranged at the bottom of the rotating shaft. A sliding track is correspondingly arranged inside the frame and corresponding to the sliding seat.

[0012] A method for producing and detecting a pull-back vehicle includes the following steps:

[0013] Step a, vehicle conveying: The vehicle is conveyed forward along its advancing direction through the slow conveyor belt until the vehicle moves into the overlapping area between the slow conveyor belt and the conveyor belt above it. At this time, the slow conveyor belt and the conveyor belt jointly clamp the vehicle at the lower end and the upper end of the vehicle respectively.

[0014] Step b, Car energy storage: The conveyor belt drives the car forward through the frictional force in contact with the upper end of the car, causing the car to move from the slow conveyor belt to the surface of the fast conveyor belt. At this time, the fast conveyor belt and the conveyor belt jointly clamp the car at the lower end and the upper end of the car respectively. Since the transmission speed of the fast conveyor belt is greater than that of the conveyor belt, while the car as a whole is driven forward by the conveyor belt, the wheels of the car rotate in the direction of the car's reverse under the frictional action of the fast conveyor belt, realizing the energy storage of the car;

[0015] Step c, Car release: When the car moves to the overlapping area of the conveyor belt and the test belt below it. At this time, the car separates from the fast conveyor belt and enters the test belt. At this time, the test belt and the conveyor belt jointly clamp the car at the lower end and the upper end of the car respectively. The conveyor belt continues to drive the car forward until the upper end of the car separates from the conveyor belt, and the car is released on the test belt;

[0016] Step d, Car testing: After the car is released on the slide of the test belt, the state of the car and the actions of the test belt include the following situations:

[0017] Situation 1: The car moves forward along the slide until it passes through the slide. At this time, the test belt does not move;

[0018] Situation 2: The car moves forward along the slide and deflects to the left during the forward movement and falls into the left deflection inlet on the left side of the slide. At this time, the test belt does not move;

[0019] Situation 3: The car moves forward along the slide and deflects to the right during the forward movement and falls into the right deflection inlet on the right side of the slide. At this time, the test belt does not move;

[0020] Situation 4: The car does not move, or moves forward but does not pass through the slide. At this time, the shaft motor drives the shaft to rotate. The shaft drives the toothed belt to rotate through the gear. The toothed belt drives the slide belt fixedly connected to its side to rotate, causing the toothed belt and the slide belt sleeved on the surface of the slide to rotate. Since one end of the upper surface of the toothed belt and the slide belt is fixed to the frame through the cross beam, the other end of the toothed belt and the slide belt moves towards the direction of the cross beam. At this time, the car remains stationary, and at the same time, the slide moves to one side until the car falls into the middle inlet at the bottom of the slide. After the car falls into the middle inlet, the shaft motor reverses to reset the slide.

[0021] Furthermore, the described detection method is applied to a production detection device for a pull-back car.

[0022] Furthermore, the described production detection device for a pull-back car includes: a slow conveyor belt, a fast conveyor belt, a transmission belt, and a test belt. One end of the slow conveyor belt is connected to the fast conveyor belt, and the other end of the fast conveyor belt is connected to the test belt. Above the fast conveyor belt is arranged the transmission belt, which completely covers the fast conveyor belt. One end of the transmission belt has an overlapping area with the slow conveyor belt, and the other end of the transmission belt has an overlapping area with the test belt. Moreover, the lengths of both overlapping areas are not less than the length of the car.

[0023] A test belt of the production detection device for a pull-back car includes: a frame, a sliding table, a chute, a toothed belt groove, a toothed belt, a sliding belt, a cross beam, a rotating shaft, a gear, a rotating shaft motor, a sliding seat, and a slideway. The frame is a rectangular frame with a hollow interior. Inside the frame is arranged a sliding table, which divides the interior of the frame into two notches. The notch on the left is the left-offset falling entrance, and the notch on the right is the right-offset falling entrance. The bottom of the sliding table is the middle falling entrance. The two ends of the sliding table are respectively slidably arranged in the chutes on the inner side of the frame. A toothed belt groove is arranged on the sliding table, and a toothed belt is arranged in the toothed belt groove. A sliding belt is sleeved on the sliding table outside the toothed belt groove, and the toothed belt is fixedly connected to the sliding belt. Inside the frame is fixedly connected with a cross beam arranged parallel to the sliding table, and the upper surface of the cross beam is aligned with the upper surfaces of the toothed belt and the sliding belt. The cross beam is fixedly connected to the toothed belt and the sliding belt. Inside the sliding table is rotatably arranged a rotating shaft, and a gear corresponding to the toothed belt is arranged on the rotating shaft. One end of the rotating shaft passes through the sliding table and the chute in sequence and is connected to the rotating shaft motor inside the frame. A sliding seat is arranged at the bottom of the rotating shaft, and a slideway corresponding to the sliding seat is arranged inside the frame.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The production detection device for a pull-back car of the present invention includes: a slow conveyor belt, a fast conveyor belt, a transmission belt, and a test belt. One end of the slow conveyor belt is connected to the fast conveyor belt, and the other end of the fast conveyor belt is connected to the test belt. Above the fast conveyor belt is arranged the transmission belt. With this structure, it can be realized that a moving path along the advancing direction of the car is formed by the slow conveyor belt, the fast conveyor belt, and the test belt. The slow conveyor belt is used to convey the car, the car is driven forward by the transmission belt, and the speed of the fast conveyor belt is greater than that of the transmission belt, so that the wheels of the car rotate and store energy in the backward direction of the car until the transmission belt drives the car to the test belt for testing the car. This avoids manual detection and can realize the automatic detection of the pull-back car, improve the detection efficiency, and save production costs.

[0026] 2. The test belt of a production detection device for a pull-back vehicle according to the present invention includes: a frame and a sliding table. The frame is a rectangular frame with a hollow interior. A sliding table is arranged inside the frame. The sliding table divides the interior of the frame into two notches. The notch on the left is the left-offset falling inlet, and the notch on the right is the right-offset falling inlet. The bottom of the sliding table is the middle falling inlet. With this structure, it can be realized that the pull-back vehicles provided by the left-offset falling inlet and the right-offset falling inlet fall in, and the sliding table arranged slidably provides for the pull-back vehicles staying on the test belt to fall in. The three falling inlets provide different test methods.

[0027] 3. For the test belt of a production detection device for a pull-back vehicle according to the present invention, a toothed belt and a sliding belt are arranged on the sliding table, and the toothed belt is fixedly connected to the sliding belt. A cross beam is fixedly connected inside the frame, and the cross beam is fixedly connected to the toothed belt and the sliding belt. With this structure, it can be realized that by driving the toothed belt to slide on the surface of the sliding table, the sliding belt fixedly connected to the toothed belt can be made to slide on the surface of the sliding table. Since both the toothed belt and the sliding belt are fixedly connected to the frame through the cross beam, when the toothed belt and the sliding belt slide, the sliding table slides, and at the same time, the pull-back vehicle on the sliding table will not move along with the sliding table, ensuring that the vehicle can vertically fall into the middle falling inlet at the bottom of the sliding table and will not fall into the left-offset falling inlet and the right-offset falling inlet on both sides.

[0028] 4. A production detection method for a pull-back vehicle according to the present invention includes: step a, conveying the vehicle; step b, storing energy of the vehicle; step c, releasing the vehicle; step d, testing the vehicle, which can realize the automatic energy storage, release and detection of the pull-back vehicle, and can classify and store the unqualified vehicles according to their different states for subsequent maintenance. Description of the Drawings

[0029] Figure 1 It is a schematic diagram of the overall structure of a production detection device for a pull-back vehicle;

[0030] Figure 2 It is Figure 1 the schematic diagram of the conveyor belt in

[0031] Figure 3 It is Figure 1 the schematic diagram of the slow conveyor belt and the fast conveyor belt in

[0032] Figure 4 It is a schematic diagram of the detection table of a production detection device for a pull-back vehicle;

[0033] Figure 5 It is Figure 1 the schematic diagram of the test belt in

[0034] Figure 6 It is Figure 5 the side view of

[0035] Figure 7 It is Figure 6Schematic diagram of the A-A cross-section structure of the test belt;

[0036] Figure 8 is Figure 6 Schematic diagram of the B-B cross-section structure of the test belt;

[0037] Figure 9 Schematic diagram of the working principle of the test belt.

[0038] In the figure: 1 slow conveyor belt; 2 fast conveyor belt; 3 transmission belt; 4 test belt; 5 trolley; 1-1 conveyor belt frame; 1-2 conveyor belt; 1-3 conveyor belt roller; 1-4 load-bearing plate; 1-5 conveyor belt motor; 3-1 transmission belt frame; 3-2 transmission belt; 3-3 transmission belt pulley; 3-4 pulley shaft; 3-5 transmission belt motor; 3-6 lifting slider; 3-7 stabilizing slider; 3-8 lifting frame; 4-1 frame; 4-2 sliding table; 4-3 sliding groove; 4-4 toothed belt groove; 4-5 toothed belt; 4-6 sliding belt; 4-7 cross beam; 4-8 rotating shaft, 4-9 gear; 4-10 rotating shaft motor; 4-11 sliding seat; 4-12 sliding track; 6-1 table top; 6-2 recycling box; 6-3 retaining bar. Specific implementation mode

[0039] The present invention will be described in detail below with reference to the accompanying drawings: Specific implementation mode one

[0041] The following is a specific implementation mode of a production detection device for a pull-back vehicle;

[0042] Combined with Figure 1 As shown, a production detection device for a pull-back vehicle disclosed in this embodiment includes: a slow conveyor belt 1, a fast conveyor belt 2, a transmission belt 3, and a test belt 4. One end of the slow conveyor belt 1 is connected to one end of the fast conveyor belt 2, and the other end of the fast conveyor belt 2 is connected to the test belt 4. Above the fast conveyor belt 2, there is a transmission belt 3. The transmission belt 3 completely covers the fast conveyor belt 2. One end of the transmission belt 3 has an overlapping area with the slow conveyor belt 1, and the other end of the transmission belt 3 has an overlapping area with the test belt 4. The lengths of both overlapping areas are not less than the length of the trolley 5.

[0043] A moving path along the forward direction of the trolley is formed by the slow conveyor belt 1, the fast conveyor belt 2, and the test belt 4. The transmission belt 3 is used to cooperate with the slow conveyor belt 1, the fast conveyor belt 2, and the test belt 4 to clamp the trolley 5. The slow conveyor belt 1 conveys the trolley. At the front end of the slow conveyor belt 1, the upper end of the trolley 5 contacts the transmission belt 3, and the trolley 5 is driven forward by the transmission belt 3. After the trolley 5 moves onto the fast conveyor belt 2, the speed of the fast conveyor belt 2 is greater than that of the transmission belt 3, causing the wheels of the trolley 5 to rotate and store energy in the backward direction of the trolley 5 until the transmission belt 3 drives the trolley 3 to the test belt 4. The trolley 5 separates from the transmission belt 3, and the trolley 5 enters the test belt 4 for testing the trolley 5;

[0044] Combined Figure 2 As shown, specifically, the conveyor belt 3 includes: a conveyor belt frame body 3-1, a conveyor belt 3-2, conveyor belt wheels 3-3, pulley shafts 3-4, and a conveyor belt motor 3-5. Two conveyor belt wheels 3-3 are arranged at intervals on one of the pulley shafts 3-4 to form a conveyor belt roller. At least two conveyor belt rollers are arranged inside the conveyor belt 3-2. The pulley shafts 3-4 of each conveyor belt roller are rotatably connected to the conveyor belt frame body 3-1. The pulley shaft 3-4 of one of the conveyor belt rollers is connected to the conveyor belt motor 3-5.

[0045] The conveyor belt roller used in the conveyor belt 3 in this embodiment is formed by arranging two conveyor belt wheels 3-3 at intervals on one pulley shaft 3-4. Ring grooves are provided on the conveyor belt wheels 3-3, and ring groove teeth are correspondingly provided on the inner side of the conveyor belt 3-2 opposite to the ring grooves. Supported by the two conveyor belt wheels 3-3, the middle of the conveyor belt 3-2 can be recessed inward. After contacting the top of the trolley 5, the top of the trolley 5 can sink into the conveyor belt 3-2, thereby increasing the friction force and ensuring that the conveyor belt 3 can drive the trolley 5 to move.

[0046] Specifically, the conveyor belt 3 further includes: a lifting slider 3-6, a stabilizing slider 3-7, and a lifting frame 3-8. The lifting slider 3-6 is fixedly connected to the conveyor belt frame body 3-1. A stabilizing slider 3-7 is provided on each side of the lifting slider 3-6. The stabilizing slider 3-7 is slidably arranged on the lifting frame 3-8. The lifting slider 3-6 is sleeved on a lead screw rotatably arranged on the lifting frame 3-8.

[0047] Rotate the lead screw, drive the conveyor belt frame body 3-1 to lift through the lifting slider 3-6, and then drive the conveyor belt 3-2 to lift, thereby changing the distance between the lower surface of the conveyor belt 3-2 and the upper surface of the fast conveyor belt 2, so as to adapt to trolleys 5 of different heights.

[0048] Combined Figure 3 As shown, specifically, the slow conveyor belt 1 includes: a conveyor belt frame body 1-1, a conveyor belt 1-2, conveyor belt rollers 1-3, a load-bearing plate 1-4, and a conveyor belt motor 1-5. Two conveyor belt rollers 1-3 are arranged inside the conveyor belt 1-2. Both conveyor belt rollers 1-3 are rotatably connected to the conveyor belt frame body 1-1. One of the conveyor belt rollers 1-3 is connected to the conveyor belt motor 1-5. The load-bearing plate 1-4 is arranged at the bottom of one side of the upper layer of the conveyor belt 1-2.

[0049] The fast conveyor belt 2 has the same structure as the slow conveyor belt 1. The conveyor belt roller 1-3 is driven by the conveyor belt motor 1-5 to rotate the conveyor belt 1-2. The conveying trolley 5 is provided with a load-bearing plate 1-4 at the bottom of the conveyor belt 1-2, so that the trolley 5 will not sink into the conveyor belt 1-2, and at the same time it is convenient for the trolley 5 to sink into the conveyor belt 3-2.

[0050] Combined with Figure 4 As shown in the figure, specifically, it further includes: a detection table 6, and the detection table 6 includes: a tabletop 6-1, a recycling box 6-2 and a retaining strip 6-3. The slow conveyor belt 1, the fast conveyor belt 2, the conveyor belt 3 and the test belt 4 are all arranged on the tabletop 6-1. A recycling box 6-2 is correspondingly arranged at the bottom of the tabletop 6-1 and corresponding to the test belt 4. Two retaining strips 6-3 are oppositely arranged on the slow conveyor belt 1 and the fast conveyor belt 2.

[0051] The two retaining strips 6-3 are fixed on the tabletop 6-1 by bolts. By adjusting the distance between the two retaining strips 6-3, it can adapt to trolleys 5 of different widths. The recycling box 6-2 is used to receive the unqualified trolleys 5 that fall from the test belt 4.

[0052] Specifically, the test belt 4 includes: a frame 4-1, a sliding table 4-2, a sliding groove 4-3, a toothed belt groove 4-4, a toothed belt 4-5, a sliding belt 4-6, a cross beam 4-7, a rotating shaft 4-8, a gear 4-9, a rotating shaft motor 4-10, a sliding seat 4-11 and a sliding track 4-12.

[0053] Combined with Figure 5 As shown in the figure, the frame 4-1 is a rectangular frame with a hollow interior. A sliding table 4-2 is arranged inside the frame 4-1. The sliding table 4-2 divides the interior of the frame 4-1 into two notches. The notch on the left is the left deviation inlet, and the notch on the right is the right deviation inlet. The bottom of the sliding table 4-2 is the middle inlet. The two ends of the sliding table 4-2 are respectively slidably arranged in the sliding grooves 4-3 on the inner side of the frame 4-1. The left deviation inlet and the right deviation inlet provide for the deflected trolleys 5 to fall in, and the slidably arranged sliding table 4-2 provides for the trolleys staying on the test belt 4 to fall in. The three inlets provide different test methods.

[0054] Combined with Figures 6 - 9As shown in the figure, a toothed belt groove 4-4 is provided on the sliding table 4-2, a toothed belt 4-5 is arranged in the toothed belt groove 4-4, a sliding belt 4-6 is sleeved on the sliding table 4-2 outside the toothed belt groove 4-4, and the toothed belt 4-5 is fixedly connected with the sliding belt 4-6. A cross beam 4-7 parallel to the sliding table 4-2 is fixedly connected inside the frame 4-1, and the upper surface of the cross beam 4-7 is aligned with the upper surfaces of the toothed belt 4-5 and the sliding belt 4-6. The cross beam 4-7 is fixedly connected with the toothed belt 4-5 and the sliding belt 4-6. A rotating shaft 4-8 is rotatably arranged inside the sliding table 4-2, and a gear 4-9 corresponding to the toothed belt 4-5 is arranged on the rotating shaft 4-8. One end of the rotating shaft 4-8 passes through the sliding table 4-2 and the sliding groove 4-3 in sequence and is connected with a rotating shaft motor 4-10 inside the frame 4-1. A sliding seat 4-11 is arranged at the bottom of the rotating shaft 4-10, and a sliding track 4-12 corresponding to the sliding seat 4-11 is arranged inside the frame 4-1.

[0055] The rotating shaft 4-8 is driven to rotate by the rotating shaft motor 4-10, and the rotating shaft 4-8 drives the gear 4-9 to rotate, so that the toothed belt 4-5 slides on the surface of the sliding table 4-2, and further the sliding belt 4-6 fixedly connected with the toothed belt 4-5 slides on the surface of the sliding table 4-2. Since both the toothed belt 4-5 and the sliding belt 4-6 are fixedly connected with the frame 4-1 through the cross beam 4-7, and the sliding table 4-2 is slidably arranged in the frame 1 through the sliding groove 4-3, when the toothed belt 4-5 and the sliding belt 4-6 slide, the sliding table 4-2 slides in the sliding groove 4-3. At the same time, the trolley 5 on the sliding table 4-2 will not move along with the sliding table 4-2, ensuring that the trolley 5 can fall vertically and enter the middle falling port at the bottom of the sliding table 4-2, and will not fall into the left deviation falling port and the right deviation falling port on both sides. Specific Embodiment 2

[0057] The following is a specific embodiment of a production detection method for a pull-back vehicle;

[0058] A production detection method for a pull-back vehicle includes the following steps:

[0059] Step a, trolley conveying: The trolley 5 is conveyed forward along its advancing direction by the slow conveyor belt 1 until the trolley 5 moves into the overlapping area of the slow conveyor belt 1 and the conveyor belt 3 above it. At this time, the slow conveyor belt 1 and the conveyor belt 3 jointly clamp the trolley 5 at the lower end and the upper end of the trolley 5 respectively.

[0060] Step b, Cart energy storage: The conveyor belt 3 drives the cart 5 forward through the frictional force in contact with the upper end of the cart 5, causing the cart 5 to move from the slow conveyor belt 1 to the surface of the fast conveyor belt 2. At this time, the fast conveyor belt 2 and the conveyor belt 3 jointly clamp the cart 5 at the lower end and the upper end of the cart 5 respectively. Since the transmission speed of the fast conveyor belt 2 is greater than that of the conveyor belt 3, while the cart 5 as a whole moves forward driven by the conveyor belt 3, the wheels of the cart 5 rotate in the direction of the cart 5's reverse movement under the frictional action of the fast conveyor belt 2, realizing the energy storage of the cart 5;

[0061] Step c, Cart release: When the cart 5 moves to the overlapping area of the conveyor belt 3 and the test belt 4 below it, at this time, the cart 5 separates from the fast conveyor belt 2 and enters the test belt 4. At this time, the test belt 4 and the conveyor belt 3 jointly clamp the cart 5 at the lower end and the upper end of the cart 5 respectively. The conveyor belt 3 continues to drive the cart 5 forward until the upper end of the cart 5 separates from the conveyor belt 3, and the cart 5 is released on the test belt 4;

[0062] Step d, Cart testing: After the cart 5 is released on the sliding table 4-2 of the test belt 4, the state of the cart 5 and the actions of the test belt 4 include the following situations:

[0063] Situation 1: The cart 5 moves forward along the sliding table 4-2 until it passes through the sliding table 4-2. At this time, the test belt 4 does not move;

[0064] Situation 2: The cart 5 moves forward along the sliding table 4-2 and deflects to the left during the forward movement and falls into the left deviation inlet on the left side of the sliding table 4-2. At this time, the test belt 4 does not move;

[0065] Situation 3: The cart 5 moves forward along the sliding table 4-2 and deflects to the right during the forward movement and falls into the right deviation inlet on the right side of the sliding table 4-2. At this time, the test belt 4 does not move;

[0066] Situation 4: The cart 5 does not move, or moves forward but does not pass through the sliding table 4-2. At this time, the shaft motor 4-10 drives the shaft 4-8 to rotate. The shaft 4-8 drives the toothed belt 4-5 to rotate through the gear 4-9. The toothed belt 4-5 drives the sliding belt 4-6 fixedly connected to its side to rotate, causing the toothed belt 4-5 and the sliding belt 4-6 sleeved on the surface of the sliding table 4-2 to rotate. Since one end of the upper surface of the toothed belt 4-5 and the sliding belt 4-6 is fixed to the frame 4-1 through the cross beam 4-7, the other end of the toothed belt 4-5 and the sliding belt 4-6 moves towards the direction of the cross beam 4-7. At this time, the cart 5 remains stationary, and at the same time, the sliding table 4-2 moves to one side until the cart 5 falls into the middle inlet at the bottom of the sliding table 4-2. After the cart 5 falls into the middle inlet, the shaft motor 4-10 rotates in the reverse direction to reset the sliding table 4-2.

[0067] Qualified trolleys 5 directly enter the subsequent packaging process through the sliding table 4-2. Unqualified trolleys 5 fall into different inlets according to the situation. For deflected trolleys 5, they fall into the left deflection inlet or the right deflection inlet. Trolleys 5 that do not move or have insufficient forward distance fall into the middle inlet at the bottom of the sliding table 4-2. It is possible to classify and collect trolleys 5 for different unqualified situations, which is convenient for subsequent maintenance and quality feedback.

[0068] Specifically, the described detection method is applied to a production detection device for a pull-back car.

[0069] Specifically, a production detection device for a pull-back car includes: a slow conveyor belt 1, a fast conveyor belt 2, a conveyor belt 3, and a test belt 4. One end of the slow conveyor belt 1 is connected to one end of the fast conveyor belt 2. The other end of the fast conveyor belt 2 is connected to the test belt 4. Above the fast conveyor belt 2, there is a conveyor belt 3. The conveyor belt 3 completely covers the fast conveyor belt 2. One end of the conveyor belt 3 has an overlapping area with the slow conveyor belt 1, and the other end of the conveyor belt 3 has an overlapping area with the test belt 4. The lengths of both overlapping areas are not less than the length of the trolley 5. Specific Embodiment Three

[0071] The following is a specific embodiment of the test belt of a production detection device for a pull-back car;

[0072] A test belt of a production detection device for a pull-back car includes: a frame 4-1, a sliding table 4-2, a chute 4-3, a toothed belt groove 4-4, a toothed belt 4-5, a sliding belt 4-6, a cross beam 4-7, a rotating shaft 4-8, a gear 4-9, a rotating shaft motor 4-10, a sliding seat 4-11, and a slideway 4-12.

[0073] Combined with Figure 5 As shown, the frame 4-1 is a rectangular frame with a hollow interior. Inside the frame 4-1, there is a sliding table 4-2. The sliding table 4-2 divides the interior of the frame 4-1 into two notches. The notch on the left is the left deflection inlet, and the notch on the right is the right deflection inlet. The bottom of the sliding table 4-2 is the middle inlet. The two ends of the sliding table 4-2 are respectively slidably arranged in the chutes 4-3 on the inner side of the frame 4-1. The left deflection inlet and the right deflection inlet are provided for deflected trolleys 5 to fall into, and the slidably arranged sliding table 4-2 is provided for trolleys staying on the test belt 4 to fall into. The three inlets provide different test methods;

[0074] Combined with Figures 6 - 9As shown in the figure, a toothed belt groove 4-4 is provided on the sliding table 4-2. A toothed belt 4-5 is arranged in the toothed belt groove 4-4. A sliding belt 4-6 is sleeved on the sliding table 4-2 outside the toothed belt groove 4-4. The toothed belt 4-5 is fixedly connected to the sliding belt 4-6. A cross beam 4-7 parallel to the sliding table 4-2 is fixedly connected inside the frame 4-1. The upper surface of the cross beam 4-7 is aligned with the upper surfaces of the toothed belt 4-5 and the sliding belt 4-6. The cross beam 4-7 is fixedly connected to the toothed belt 4-5 and the sliding belt 4-6. A rotating shaft 4-8 is rotatably arranged inside the sliding table 4-2. A gear 4-9 corresponding to the toothed belt 4-5 is arranged on the rotating shaft 4-8. One end of the rotating shaft 4-8 sequentially passes through the sliding table 4-2 and the sliding groove 4-3 and is connected to a rotating shaft motor 4-10 inside the frame 4-1. A sliding seat 4-11 is arranged at the bottom of the rotating shaft 4-10. A sliding track 4-12 corresponding to the sliding seat 4-11 is arranged inside the frame 4-1.

[0075] The rotating shaft 4-8 is driven to rotate by the rotating shaft motor 4-10. The rotating shaft 4-8 drives the gear 4-9 to rotate, so that the toothed belt 4-5 slides on the surface of the sliding table 4-2. Furthermore, the sliding belt 4-6 fixedly connected to the toothed belt 4-5 slides on the surface of the sliding table 4-2. Since both the toothed belt 4-5 and the sliding belt 4-6 are fixedly connected to the frame 4-1 through the cross beam 4-7, and the sliding table 4-2 is slidably arranged in the frame 1 through the sliding groove 4-3. When the toothed belt 4-5 and the sliding belt 4-6 slide, the sliding table 4-2 slides in the sliding groove 4-3. At the same time, the trolley 5 on the sliding table 4-2 will not move with the sliding table 4-2, ensuring that the trolley 5 can vertically fall into the middle falling port at the bottom of the sliding table 4-2 and will not fall into the left deviation falling port and the right deviation falling port on both sides.

[0076] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be arranged and combined. Since those skilled in the art can exhaust all the results of permutations and combinations according to the permutation and combination mathematical knowledge learned in high school, these results are not listed one by one in this application, but it should be understood that each result of permutation and combination is recorded in this application.

[0077] It should also be noted that the above embodiments are only exemplary descriptions of this patent and do not limit its protection scope. Those skilled in the art can also make partial changes to it. As long as it does not exceed the spiritual essence of this patent, it is within the protection scope of this patent.

Claims

1. A production detection device for a pull-back car, characterized in that, Including: A slow conveyor belt (1), a fast conveyor belt (2), a transmission belt (3) and a test belt (4). One end of the slow conveyor belt (1) is connected to the fast conveyor belt (2), and the other end of the fast conveyor belt (2) is connected to the test belt (4). Above the fast conveyor belt (2), there is a transmission belt (3) which completely covers the fast conveyor belt (2). One end of the transmission belt (3) has an overlapping area with the slow conveyor belt (1), and the other end of the transmission belt (3) has an overlapping area with the test belt (4). The lengths of both overlapping areas are not less than the length of the trolley (5). The test belt (4) includes: a frame (4-1), a sliding table (4-2), a sliding groove (4-3), a toothed belt groove (4-4), a toothed belt (4-5), a sliding belt (4-6), a cross beam (4-7), a rotating shaft (4-8), a gear (4-9), a rotating shaft motor (4-10), a sliding seat (4-11) and a sliding track (4-12). The frame (4-1) is a rectangular frame with a hollow interior. Inside the frame (4-1), there is a sliding table (4-2) which divides the interior of the frame (4-1) into two notches. The notch on the left is the left offset falling inlet, and the notch on the right is the right offset falling inlet. The bottom of the sliding table (4-2) is the middle falling inlet. The two ends of the sliding table (4-2) are respectively slidably arranged in the sliding grooves (4-3) on the inner side of the frame (4-1). There is a toothed belt groove (4-4) on the sliding table (4-2), and a toothed belt (4-5) is arranged in the toothed belt groove (4-4). A sliding belt (4-6) is sleeved on the sliding table (4-2) outside the toothed belt groove (4-4), and the toothed belt (4-5) is fixedly connected to the sliding belt (4-6). Inside the frame (4-1), there is a cross beam (4-7) fixedly connected and arranged parallel to the sliding table (4-2), and the upper surface of the cross beam (4-7) is aligned with the upper surfaces of the toothed belt (4-5) and the sliding belt (4-6). The cross beam (4-7) is fixedly connected to the toothed belt (4-5) and the sliding belt (4-6). Inside the sliding table (4-2), there is a rotating shaft (4-8) rotatably arranged. A gear (4-9) corresponding to the toothed belt (4-5) is arranged on the rotating shaft (4-8). One end of the rotating shaft (4-8) passes through the sliding table (4-2) and the sliding groove (4-3) in sequence and is connected to the rotating shaft motor (4-10) inside the frame (4-1). A sliding seat (4-11) is arranged at the bottom of the rotating shaft (4-8). A sliding track (4-12) corresponding to the sliding seat (4-11) is arranged inside the frame (4-1).

2. The production inspection device for a pull-back car according to claim 1, characterized in that, The conveyor belt (3) includes: a conveyor belt frame body (3-1), a conveyor belt (3-2), conveyor belt wheels (3-3), pulley shafts (3-4), and a conveyor belt motor (3-5). Two conveyor belt wheels (3-3) are arranged at intervals on one of the pulley shafts (3-4) to form a conveyor belt roller. At least two conveyor belt rollers are arranged inside the conveyor belt (3-2). The pulley shafts (3-4) of each conveyor belt roller are rotatably connected to the conveyor belt frame body (3-1). The pulley shaft (3-4) of one of the conveyor belt rollers is connected to the conveyor belt motor (3-5).

3. The production and detection device for a pull-back car according to claim 2, wherein, The conveyor belt (3) further includes: a lifting slider (3-6), a stabilizing slider (3-7), and a lifting frame (3-8). The lifting slider (3-6) is fixedly connected to the conveyor belt frame body (3-1). One stabilizing slider (3-7) is arranged on each side of the lifting slider (3-6). The stabilizing slider (3-7) is slidably arranged on the lifting frame (3-8). The lifting slider (3-6) is sleeved on a lead screw rotatably arranged on the lifting frame (3-8).

4. A production inspection device for a pull-back car according to any one of claims 1, 2, or 3, characterized in that, The slow conveyor belt (1) includes: a conveyor belt frame body (1-1), a conveyor belt (1-2), conveyor belt rollers (1-3), a load-bearing plate (1-4), and a conveyor belt motor (1-5). Two conveyor belt rollers (1-3) are arranged inside the conveyor belt (1-2). Both conveyor belt rollers (1-3) are rotatably connected to the conveyor belt frame body (1-1). One of the conveyor belt rollers (1-3) is connected to the conveyor belt motor (1-5). The load-bearing plate (1-4) is arranged at the bottom of one side of the upper layer of the conveyor belt (1-2).

5. The production inspection device for a pull-back car according to claim 4, wherein, It further includes: A detection table (6). The detection table (6) includes: a tabletop (6-1), a recycling box (6-2), and a retaining bar (6-3). The slow conveyor belt (1), the fast conveyor belt (2), the conveyor belt (3), and the test belt (4) are all arranged on the tabletop (6-1). A recycling box (6-2) corresponding to the test belt (4) is arranged at the bottom of the tabletop (6-1). Two retaining bars (6-3) are oppositely arranged on the slow conveyor belt (1) and the fast conveyor belt (2).

6. A method for detecting the production of a pull-back toy car based on the pull-back toy car production detection device described in claim 1, characterized in that, It includes the following steps: Step a, trolley transportation: The trolley (5) is transported forward along its advancing direction through the slow conveyor belt (1) until the trolley (5) moves into the overlapping area between the slow conveyor belt (1) and the conveyor belt (3) above it. At this time, the slow conveyor belt (1) and the conveyor belt (3) jointly clamp the trolley (5) at the lower end and the upper end of the trolley (5) respectively. Step b, accumulating power of the trolley: the conveyor belt (3) drives the trolley (5) forward through the friction force of contact with the upper end of the trolley (5), so that the trolley (5) moves forward from the slow conveyor belt (1) to the surface of the fast conveyor belt (2). At this time, the fast conveyor belt (2) and the conveyor belt (3) clamp the trolley (5) at the lower end and the upper end of the trolley (5) respectively. The transmission speed of the fast conveyor belt (2) is greater than the transmission speed of the conveyor belt (3), so that the trolley (5) as a whole moves forward under the drive of the conveyor belt (3). At the same time, the wheels of the trolley (5) rotate in the reverse direction of the trolley (5) under the friction of the fast conveyor belt (2), so as to realize the power accumulation of the trolley (5); Step c, releasing the trolley: when the trolley (5) moves to the overlapping area between the conveyor belt (3) and the test belt (4) below it, the trolley (5) separates from the fast conveyor belt (2) and enters the test belt (4). At this time, the test belt (4) and the conveyor belt (3) clamp the trolley (5) at the lower end and the upper end of the trolley (5) respectively, and the conveyor belt (3) continues to drive the trolley (5) forward until the upper end of the trolley (5) separates from the conveyor belt (3), and the trolley (5) is released on the test belt (4); Step d, trolley test: After the trolley (5) is released onto the slide (4-2) of the test belt (4), the state of the trolley (5) and the action of the test belt (4) include the following situations: Case 1: The trolley (5) moves along the slide (4-2) until it passes through the slide (4-2). At this time, the test belt (4) does not move; Case 2: The trolley (5) moves forward along the slide (4-2), deflects to the left during the process of moving forward, and falls into the left-biased falling entrance on the left side of the slide (4-2). At this time, the test belt (4) does not move; Case 3: The trolley (5) moves along the slide (4-2), deflects to the right during the moving process, and falls into the right-deflected falling entrance on the right side of the slide (4-2). At this time, the test belt (4) does not move; Case 4: The trolley (5) is stationary, or moves forward but does not pass through the slide (4-2). At this time, the shaft motor (4-10) drives the shaft (4-8) to rotate. The shaft (4-8) drives the toothed belt (4-5) to rotate through the gear (4-9). The toothed belt (4-5) drives the slide belt (4-6) fixedly connected to its side to rotate, so that the toothed belt (4-5) and the slide belt (4-6) sleeved on the surface of the slide (4-2) rotate. ) are fixed to the frame (4-1) at one end of the upper surface through the crossbeam (4-7), so that the other ends of the toothed belt (4-5) and the sliding belt (4-6) move in the direction of the crossbeam (4-7). At this time, the trolley (5) is fixed and the slide (4-2) moves to one side until the trolley (5) falls into the middle entrance at the bottom of the slide (4-2). After the trolley (5) falls into the middle entrance, the shaft motor (4-10) is reversed to reset the slide (4-2).

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