Automatic belt feeding mechanism and packing machine

Through the automatic belt-up mechanism, the coordination of the guide belt path and the guide plate fixing block, combined with the electromagnetic suction cylinder and pressure spring power, the problem of insufficient operating space of the vanisher is solved, and the automatic belt feeding and exporting is realized, improving the belt-up efficiency and accuracy.

CN223046021UActive Publication Date: 2025-07-01XIAMEN FRIENDSHIP INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202422090219.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-28
Publication Date
2025-07-01
Estimated Expiration
2034-08-28

AI Technical Summary

Technical Problem

During the use of the automatic baler, due to insufficient working space, the door with a bin cannot be opened for the loading operation, resulting in the inability to load the packing belt smoothly.

Method used

The automatic belt-up mechanism is adopted, including a belt guide plate, a guide plate fixing block, a pre-conveying mechanism and a first driving mechanism. Through the cooperation of the guide belt and the guide plate fixing block, the automatic feeding and export of the packaging belt is realized, and the electromagnetic suction cylinder and pressure spring are used as the source of power to ensure the accurate movement and reset of the guide plate fixing block and the belt guide plate.

Benefits of technology

It realizes that the automatic belt belt is automatically lifted on the side without opening the door, reducing space occupation, ensuring that the packaging belt is accurately fed into the movement, and improving the belt belt efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an automatic tape feeding mechanism and a packing machine, which comprise a tape bin bottom plate arranged in a tape bin, a tape track guide plate and a guide plate fixing block, the tape track guide plate and the guide plate fixing block are arranged in the tape bin, and a guide tape track is arranged in the tape track guide plate; a containing groove is further formed in the belt track guide plate and located in one side of the guide belt track, and a guide plate fixing block can penetrate into the containing groove. A first driving mechanism is further arranged in the belt bin, and the first driving mechanism is connected with the guide belt track or the belt track guide plate; a protruding extension edge is arranged on the edge of the side, facing the containing groove, of the guide plate fixing block. The belt bin bottom plate is fixed to the side, away from the belt track guide plate, of the guide plate fixing block. An outlet of the belt pre-feeding mechanism is in butt joint with an inlet of the guide belt channel. The packing belt can be loaded without opening the bin door of the belt bin, the head end of the packing belt is manually aligned and inserted into the belt feeding and withdrawing position of the machine core, and only the head end of the packing belt needs to be pushed into the belt inlet in the side wall of the belt bin, so that the occupied space during belt loading is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of packing equipment, in particular to an automatic tape feeding mechanism and a packing machine. Background Art

[0002] An automatic packing machine is a mechanical device used for packing products or articles, and is widely applied to multiple industries such as logistics, warehousing, food, medicine, chemical industry, hardware, building materials, etc. The main function of the packing machine is to bundle products with materials such as packing tapes, so as to facilitate transportation and storage, and at the same time, the products can be protected from being damaged. However, during the use of the automatic packing machine, due to various reasons, the working space is insufficient, and the tape bin door cannot be opened for tape feeding operation. For example, placing an operation table, an operation flow conveyor line, etc. Content of the Utility Model

[0003] In order to solve the above problems, the purpose of the utility model is to provide an automatic tape feeding mechanism and a packing machine.

[0004] The utility model adopts the following method to achieve: an automatic tape feeding mechanism, including a tape bin bottom plate arranged in the tape bin, and further including a tape path guide plate and a guide plate fixing block arranged in the tape bin, wherein a guiding tape path is arranged in the tape path guide plate; a receiving groove is further arranged in the tape path guide plate, the receiving groove is located on one side of the guiding tape path, and the guide plate fixing block can penetrate into the receiving groove; a first driving mechanism is further arranged in the tape bin, the first driving mechanism is connected with the guiding tape path or the tape path guide plate, and is used for driving the tape path guide plate and the guiding tape path to approach or move away from each other; on the side surface of the guide plate fixing block connected with the guiding tape path and on the side edge facing the receiving groove, a protruding edge is arranged; the tape bin bottom plate is fixed to the side of the guide plate fixing block away from the tape path guide plate; a pre-feeding tape mechanism is further arranged, an outlet of the pre-feeding tape mechanism is butted against an inlet of the guiding tape path, and an inlet of the pre-feeding tape mechanism is connected with a tape inlet on the side wall of the tape bin.

[0005] Preferably, the first driving mechanism includes a guiding component and a driving component, the guiding component is fixedly connected with the guide plate fixing block, the driving component is movably arranged on the guide plate fixing block, and the driving component is connected with the tape path guide plate and is used for driving the tape path guide plate to approach or move away from the guide plate fixing block.

[0006] Preferably, the driving assembly includes a mounting plate, the mounting plate is fixedly connected to the guide plate fixing block, the driving assembly also includes a driving member, a moving block and a telescopic shaft; the guiding assembly is a guiding bearing, two of the guiding bearings are fixed to the mounting plate, the driving member is fixedly connected to the mounting plate, the driving member is connected to the moving block, the telescopic shaft is passed through the guiding bearing, one end of the telescopic shaft away from the driving member passes through the mounting plate, the belt bin bottom plate and the guide plate fixing block, one end of the telescopic shaft away from the driving member is fixedly connected to the belt guide plate, and one end of the telescopic shaft away from the belt guide plate is fixedly connected to the moving block.

[0007] Preferably, the driving mechanism further comprises a reset member, wherein the reset member is mounted on the guide plate fixing block, and the reset member is connected to the driving assembly and is used for driving the driving assembly to reset.

[0008] Preferably, the reset member comprises a compression spring guide rod and a compression spring, wherein the compression spring guide rod is fixed to the side of the mounting plate away from the guide plate fixing block, the compression spring is passed through the compression spring guide rod, the movable block is passed through the compression spring guide rod, and the movable block is located between the compression spring and the mounting plate.

[0009] Preferably, the driving component is an electromagnet, an electromagnet core and an electromagnet joint, the electromagnet core is movably arranged in the electromagnet, one end of the electromagnet joint is connected to the electromagnet core, and the other end of the electromagnet joint is connected to the moving block.

[0010] Preferably, the pre-feeding mechanism includes a belt-entry bridge and a belt-feeding wheel arranged on the inlet side of the belt-entry bridge.

[0011] Preferably, the belt-entry bridge comprises a lower bridge plate, a middle bridge plate and an upper bridge plate, the middle bridge plate is clamped between the lower bridge plate and the upper bridge plate, the lower bridge plate and the middle bridge plate abut against the end surface of the belt bin bottom plate close to the belt guide plate, and the distance between the middle bridge plate and the belt bin bottom plate is equal to the width of the packing belt; there are two belt conveyor pulleys, one of which is driven by a motor, and the other belt conveyor pulley is connected to a shifting rod, the shifting rod is hinged at the belt entrance of the belt bin, and the shifting rod is used to drive the belt conveyor pulley to approach or move away from the other belt conveyor pulley.

[0012] Preferably, the guide belt path is opened from a side of the belt path guide plate toward the guide plate fixing block to a side away from the guide plate fixing block.

[0013] A baling machine is provided with a belt bin, a side of the belt bin is provided with a belt inlet, and the belt bin is provided with an automatic belt feeding mechanism as described in any one of the above items.

[0014] The beneficial effects of the present utility model are as follows: The present utility model provides an automatic tape feeding mechanism and a strapping machine. Compared with the prior art, the present utility model has at least the following technical effects: 1. The pre-feed tape mechanism pushes the packing tape, and the tape guide plate and the guide plate fixing block cooperate, and one of them can move away from or close to the other. When feeding the tape for the first time, the guide plate fixing block is trapped in the receiving groove, and the packing tape will enter the tape feeding and retracting position of the strapping machine core along the guiding tape path. Then, the first driving mechanism drives the tape guide plate or the guide plate fixing block to reset, so that the guide plate fixing block is disengaged from the receiving groove. And because the edge of the guide plate fixing block is provided with an extension edge, the packing tape will be taken out of the guiding tape path together, and can smoothly enter the tape bin after being released from the restriction of the guiding tape path. When the tape bin is filled with packing tape, the pre-feed tape mechanism stops working, and the tape feeding work can be completed; there is no need to open the tape bin door to load the packing tape and manually align the head end of the packing tape and insert it into the tape feeding and retracting position of the machine core. Only the head end of the packing tape needs to be pushed into the tape inlet on the side wall of the tape bin, reducing the space occupied during tape feeding. 2. The first driving mechanism is provided with a guiding component and a driving component to cooperate and drive the movement of the tape guide plate, ensuring accurate displacement. Each time the tape guide plate moves and resets, it can accurately penetrate into the receiving groove. 3. An electromagnetic suction cylinder is used as the power source for closing, and a compression spring is used as the device return device. The tape guide plate, the guide plate fixing block, and the bottom plate of the tape bin form a complete guiding channel, and automatic side tape feeding can be realized without opening the tape bin door. 4. An inlet tape bridge is provided to facilitate accurately feeding the packing tape into the guiding tape path. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a schematic structural view of an automatic tape feeding mechanism of the present utility model.

[0016] Figure 2 FIG. is a schematic structural view of another perspective of an automatic tape feeding mechanism of the present utility model.

[0017] Figure 3 FIG. is a schematic cross-sectional structural view of the first driving part of an automatic tape feeding mechanism of the present utility model.

[0018] Figure 4 FIG. is a schematic structural view of an automatic tape feeding mechanism of the present utility model with the bottom plate of the tape bin removed.

[0019] Figure 5 FIG. is a separate view of the tape guide plate and the guide plate fixing block of the present utility model.

[0020] Figure 6 FIG. is a schematic structural view of the inlet tape bridge of the present utility model.

[0021] Figure 7 FIG. is a schematic view of the state of a tape feeding mechanism of the present utility model disposed in the tape bin.

[0022] Explanation of the attached reference numerals: 1. Tape bin bottom plate; 2. Tape path guide plate; 21. Guide tape path; 22. Receiving groove; 3. Guide plate fixing block; 31. Edge extension; 4. First driving mechanism; 41. Mounting plate; 42. Moving block; 43. Telescopic shaft; 44. Guide bearing; 45. Compression spring guide rod; 46. Compression spring; 47. Electromagnet; 48. Electromagnet core; 49. Electromagnet joint; 5. Pre-feed tape mechanism; 51. Under-bridge plate; 52. Middle-bridge plate; 53. Upper-bridge plate; 54. Tape transmission wheel; 55. Pushing rod; 6. Tape inlet; 7. Anti-vibration rubber nut; 8. Machine core. Detailed implementation manners

[0023] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Please refer to Figures 1 to 7 , an automatic tape loading mechanism, including a tape bin bottom plate 1 provided in a tape bin, and further including a tape path guide plate 2 and a guide plate fixing block 3 provided in the tape bin. A guide tape path 21 is provided in the tape path guide plate 2; a receiving groove 22 is further provided in the tape path guide plate 2. The receiving groove 22 is located on one side of the guide tape path 21, and the guide plate fixing block 3 can penetrate into the receiving groove 22; a first driving mechanism 4 is further provided in the tape bin. The first driving mechanism 4 is connected to the guide tape path 21 or the tape path guide plate 2 for driving the tape path guide plate 2 and the guide tape path 21 to approach or move away from each other; on the surface of the side of the guide plate fixing block 3 that is in contact with the guide tape path and on the edge side facing the receiving groove 22, there is a protruding edge extension 31; the tape bin bottom plate 1 is fixed to the side of the guide plate fixing block 3 away from the tape path guide plate 2; a pre-feed tape mechanism 5 is further provided. The outlet of the pre-feed tape mechanism 5 is docked with the inlet of the guide tape path 21, and the inlet of the pre-feed tape mechanism 5 is connected to the tape inlet 6 on the side wall of the tape bin. The packing tape is pushed by the pre-feed tape mechanism 5, and the tape path guide plate 2 and the guide plate fixing block 3 cooperate, and one of them can move away from or approach each other. When feeding the tape for the first time, the guide plate fixing block 3 is sunk into the receiving groove 22, and the packing tape will enter the tape feeding and retracting position of the packing machine core 8 along the guide tape path 21. Then, the first driving mechanism 4 drives the tape path guide plate 2 or the guide plate fixing block 3 to reset, so that the guide plate fixing block 3 is disengaged from the receiving groove 22. And because there is an edge extension 31 at the edge of the guide plate fixing block 3, the packing tape will be taken out together from the guide tape path 21. Once it is out of the restriction of the guide tape path 21, it can smoothly enter the tape bin. When the tape bin is full of packing tape, the pre-feed tape mechanism 5 stops working, and the tape loading work can be completed; there is no need to open the tape bin door to load the packing tape and manually align the head end of the packing tape and insert it into the tape feeding and retracting position of the core 8. Only the head end of the packing tape needs to be pushed into the tape inlet 6 on the side wall of the tape bin, reducing the space occupied during tape loading. The distance between the edge extension 31 and the tape bin bottom plate 1 is equal to the width of the packing tape, and the two cooperate to prevent the packing tape from slipping out of the guide tape path 21. The tape bin bottom plate 1 is fixed at a designated position in the tape bin.

[0025] See also Figures 1 to 4 Preferably, the first driving mechanism 4 includes a guide assembly and a driving assembly, the guide assembly is fixedly connected to the guide plate fixing block 3, the driving assembly is movably mounted on the guide plate fixing block 3, and the driving assembly is connected to the belt track guide plate 2 to drive the belt track guide plate 2 to approach or move away from the guide plate fixing block 3. The first driving mechanism 4 is provided with a guide assembly and a driving assembly to cooperate with the belt track guide plate 2 to move, ensuring accurate displacement, and the belt track guide plate 2 can accurately penetrate into the receiving groove 22 after each movement and reset.

[0026] See also Figures 1 to 4 Preferably, the driving assembly includes a mounting plate 41, the mounting plate 41 is fixedly connected to the guide plate fixing block 3, the driving assembly also includes a driving member, a moving block 42 and a telescopic shaft 43; the guiding assembly is a guide bearing 44, two of the guide bearings 44 are fixed on the mounting plate 41, the driving member is fixedly connected to the mounting plate 41, the driving member is connected to the moving block 42, the telescopic shaft 43 is penetrated in the guide bearing 44, the end of the telescopic shaft 43 away from the driving member passes through the mounting plate 41, the belt bin bottom plate 1 and the guide plate fixing block, the end of the telescopic shaft 43 away from the driving member is fixedly connected to the belt guide plate 2, and the end of the telescopic shaft 43 away from the belt guide plate 2 is fixedly connected to the moving block 42. The moving block 42 is driven to move by the driving member, and then the moving block 42 drives the telescopic shaft 43 to telescope along the guide bearing 44, thereby driving the belt guide plate 2 to move.

[0027] See also Figures 1 to 4 Preferably, the driving mechanism further comprises a reset member, which is mounted on the guide plate fixing block 3 and connected to the driving assembly for driving the driving assembly to reset. With the reset member for resetting, the driving assembly only needs to drive the belt guide plate 2 away, which can simplify the control process.

[0028] See also Figures 1 to 4 Preferably, the reset member comprises a compression spring guide rod 45 and a compression spring 46, wherein the compression spring guide rod 45 is fixed to the side of the mounting plate 41 away from the guide plate fixing block 3, the compression spring 46 is passed through the compression spring guide rod 45, the moving block 42 is passed through the compression spring guide rod 45, and the moving block 42 is located between the compression spring 46 and the mounting plate 41.

[0029] See also Figures 1 to 4, preferably, the driving member is an electromagnet 47, an electromagnet core 48 and an electromagnet joint 49. The electromagnet core 48 is movably inserted through the electromagnet 47. One end of the electromagnet joint 49 is connected to the electromagnet core 48, and the other end of the electromagnet joint 49 is connected to the moving block 42. When the electromagnet 47 is energized, it generates a magnetic attraction to drive the electromagnet core 48 to move and retract into the electromagnet 47, thereby driving the electromagnet joint 49 to move, so as to drive the moving block 42 to move, and thus the driving belt guide plate 2 can be driven to move. Of course, the driving member can also be a cylinder, an electric telescopic cylinder, etc., and is not limited thereto.

[0030] Please refer to Figure 2 , Figure 4 , Figure 6 , preferably, the pre-feed belt mechanism 5 includes a belt inlet bridge and a belt conveyor wheel 54 provided on the inlet side of the belt inlet bridge. The belt inlet bridge is provided to accurately feed the packing belt into the guiding belt path 21.

[0031] Please refer to Figure 2 , Figure 4 , Figure 6 , preferably, the belt inlet bridge includes a lower bridge plate 51, a middle bridge plate 52 and an upper bridge plate 53. The middle bridge plate 52 is clamped between the lower bridge plate 51 and the upper bridge plate 53. The lower bridge plate 51 and the middle bridge plate 52 are in contact with the end face of the belt bin bottom plate 1 close to the belt guide plate 2. The distance between the middle bridge plate 52 and the belt bin bottom plate 1 is equal to the width of the packing belt; there are two belt conveyor wheels 54, one of the belt conveyor wheels 54 is driven by a motor, and the other belt conveyor wheel 54 is connected to a lever 55. The lever 55 is hinged at the belt inlet 6 of the belt bin, and the lever 55 is used to drive the belt conveyor wheel 54 to approach or move away from the other belt conveyor wheel 54. When the lever moves to press the two belt conveyor wheels 54 tightly, sufficient frictional force can be generated to drive the packing belt to move.

[0032] Please refer to Figures 1 to 5 , preferably, the guiding belt path 21 is opened from the side of the belt guide plate 2 facing the guide plate fixing block 3 to the side facing away. A U-shaped guiding belt path 21 is formed, so that the packing belt can be moved out from the opening side.

[0033] Please refer to Figure 1 , Figure 3 , Figure 4 , preferably, the moving block 42 is provided with an anti-vibration rubber nut 7 on the surface opposite to the mounting plate 41. When returning to the position, the anti-vibration rubber nut 7 can effectively reduce the vibration of the whole mechanism, reduce the damage of the mechanism caused by vibration and extend the service life.

[0034] A bundling machine is provided with a tape bin. There is a tape inlet 6 on the side of the tape bin, and an automatic tape feeding mechanism as described in any one of the above is provided in the tape bin. It realizes automatic and rapid tape feeding from the side, avoids the step of opening the tape bin to replenish the packing tape, and reduces the space occupied during tape feeding.

[0035] The working principle of the present utility model is as follows:

[0036] When tape feeding is required, the electromagnet 47 is energized to work, generating magnetic attraction to drive the electromagnet core 48 to move and retract into the electromagnet 47. Further, it drives the electromagnet joint 49 to move, so as to drive the moving block 42 to move. The movement of the moving block 42 drives the telescopic shaft 43 to move along the guiding bearing 44, and then drives the tape path guide plate 2 to move (close to the guide plate fixing block 3), so that the guide plate fixing block 3 penetrates into the accommodating groove 22, and a complete guiding tape path 21 is formed by the tape path guide plate 2, the guide plate fixing block 3, and the tape bin bottom plate 1. Then, the pre-feed tape mechanism 5 feeds the packing tape along the tape inlet bridge into the guiding tape path 21, and under the action of the guiding tape path 21, it smoothly reaches the tape feeding and retracting position of the core 8 of the bundling machine. After that, the electromagnet 47 loses power, and the compression spring 46 returns to its original position under the decompression to drive the moving block 42 to move in the reverse direction. The telescopic shaft 43 and the tape path guide plate 2 move in the reverse direction (move the tape path guide plate 2 away from the guide plate fixing block 3, and the guide plate fixing block 3 moves out of the accommodating groove 22), so that the complete guiding channel formed by the tape path guide plate 2, the guide plate fixing block 3, and the tape bin bottom plate 1 becomes an open space. When the tape path guide plate 2 returns to its position, the packing tape is blocked by the protrusion of the edge 31 on the side of the guide plate fixing block 3, so that the packing tape is separated from the restriction of the tape path guide plate 2 and smoothly enters the tape bin. When the tape bin is full of packing tape, the pre-feed tape mechanism 5 stops working, and the entire tape feeding operation is completed.

[0037] It should be noted that: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or can also be the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change.

[0038] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the usual designs. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other.

[0039] Finally, the above description is only the preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model.

[0040] It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principles of the present utility model shall also be regarded as falling within the protection scope of the present utility model.

Claims

1. An automatic tape loading mechanism, comprising a tape bin bottom plate arranged in a tape bin, characterized in that: The belt guide plate is provided with a guide belt guide plate; the belt guide plate is also provided with a receiving groove, the receiving groove is located on one side of the guide belt, and the guide plate fixing block can be inserted into the receiving groove; the belt warehouse is also provided with a first driving mechanism, the first driving mechanism is connected with the guide belt or the belt guide plate, and is used to drive the belt guide plate and the guide belt to approach or move away from each other; a side surface of the guide plate fixing block is connected with the guide belt, and a side edge facing the receiving groove is provided with a raised extension; the belt warehouse bottom plate is fixed to a side of the guide plate fixing block away from the belt guide plate; a pre-feeding mechanism is also provided, the outlet of the pre-feeding mechanism is connected with the inlet of the guide belt, and the inlet of the pre-feeding mechanism is connected with the belt entrance of the side wall of the belt warehouse.

2. The automatic belt feeding mechanism according to claim 1, characterized in that: The first driving mechanism includes a guide assembly and a driving assembly, wherein the guide assembly is fixedly connected to the guide plate fixing block, the driving assembly is movably mounted on the guide plate fixing block, and the driving assembly is connected to the belt guide plate to drive the belt guide plate to approach or move away from the guide plate fixing block.

3. The automatic belt feeding mechanism according to claim 2, characterized in that: The driving assembly includes a mounting plate, which is fixedly connected to the guide plate fixing block, and the driving assembly also includes a driving member, a moving block and a telescopic shaft; the guiding assembly is a guiding bearing, two of which are fixed to the mounting plate, the driving member is fixedly connected to the mounting plate, the driving member is connected to the moving block, the telescopic shaft is passed through the guiding bearing, one end of the telescopic shaft away from the driving member passes through the mounting plate, the belt bin bottom plate and the guide plate fixing block, one end of the telescopic shaft away from the driving member is fixedly connected to the belt guide plate, and one end of the telescopic shaft away from the belt guide plate is fixedly connected to the moving block.

4. The automatic belt feeding mechanism according to claim 3, characterized in that: The driving mechanism further comprises a reset member, which is mounted on the guide plate fixing block and connected to the driving assembly for driving the driving assembly to reset.

5. The automatic belt feeding mechanism according to claim 4, characterized in that: The reset member comprises a compression spring guide rod and a compression spring, wherein the compression spring guide rod is fixed to a side of the mounting plate away from the guide plate fixing block, the compression spring is passed through the compression spring guide rod, the moving block is passed through the compression spring guide rod, and the moving block is located between the compression spring and the mounting plate.

6. The automatic belt feeding mechanism according to claim 3, characterized in that: The driving part is an electromagnet, an electromagnet core and an electromagnet joint. The electromagnet core is movably arranged in the electromagnet, one end of the electromagnet joint is connected to the electromagnet core, and the other end of the electromagnet joint is connected to the moving block.

7. The automatic belt feeding mechanism according to claim 1, characterized in that: The pre-feeding mechanism comprises a belt-entry bridge and a belt-feeding wheel arranged at the inlet side of the belt-entry bridge.

8. The automatic belt feeding mechanism according to claim 7, characterized in that: The belt-entry bridge includes a lower bridge plate, a middle bridge plate and an upper bridge plate, the middle bridge plate is clamped between the lower bridge plate and the upper bridge plate, the lower bridge plate and the middle bridge plate are in contact with the end surface of the belt bin bottom plate close to the belt guide plate, and the distance between the middle bridge plate and the belt bin bottom plate is equal to the width of the strapping belt; there are two belt conveyor pulleys, one of which is driven by a motor, and the other is connected to a shifting rod, which is hinged at the belt entry port of the belt bin, and the shifting rod is used to drive the belt conveyor pulley to approach or move away from the other belt conveyor pulley.

9. The automatic belt feeding mechanism according to claim 1, characterized in that: The guide belt path is opened from a side of the belt path guide plate facing the guide plate fixing block to a side away from the guide plate fixing block.

10. A baling machine, provided with a baling bin, characterized in that: A belt inlet is provided on the side of the belt bin, and an automatic belt loading mechanism as described in any one of claims 1-9 is provided in the belt bin.