Automatic unloading mechanism of a paper folding machine

Abstract

The application relates to an automatic unloading mechanism of a paper folding machine, which comprises a rack, a clamping material channel arranged on the rack and used for receiving strip-shaped materials sent out by a material belt of a paper folding mechanism, the clamping material channel being arranged corresponding to a discharging end of the material belt of the paper folding mechanism; a feeding chain located on one side of the clamping material channel, a plurality of unloading clamps being arranged on the feeding chain and moving synchronously with the feeding chain; and a transmission assembly, a top block of the transmission assembly being arranged towards the feeding chain; when the transmission assembly pushes the top block to top the unloading clamps, the clamping openings of the unloading clamps remain in an open state to allow the strip-shaped materials on the clamping material channel to enter; when the transmission assembly drives the top block to retreat, the clamping openings of the unloading clamps are reset and the strip-shaped materials are clamped and fixed. The application improves unloading efficiency, guarantees production continuity, reduces labor cost and improves operation safety.

Description

Technical Field

[0001] This application relates to the technical field of paper folding machines, and in particular to an automatic unloading mechanism for a paper folding machine. Background Technology

[0002] In the production and processing of paper materials such as instruction manuals and brochures, folding machines are one of the core processing equipment. Their main function is to fold flat paper into strips according to preset specifications for subsequent packaging, storage, and transportation. Currently, the processing flow of existing folding machines is usually as follows: after the folding mechanism folds the paper into strips, the strips are fed out sequentially from the discharge port via a conveyor belt. After being fed out, the strips of instruction manuals need to be manually removed and sorted to complete the unloading operation.

[0003] However, this traditional unloading method has many drawbacks and is difficult to meet the needs of large-scale, automated production: First, manual unloading requires a large investment of manpower. Operators need to continuously focus on the discharge port and pick up the strips of instruction manuals one by one. Long-term operation can easily lead to fatigue, resulting in low unloading efficiency. In addition, the consistency of manual operation is poor, and it is easy to miss, pick up the wrong manuals, or damage the manuals during the picking process, which affects the product qualification rate. Second, the rhythm of manual unloading depends entirely on the speed of the operator's movements and cannot be precisely matched with the folding and feeding rhythm of the folding machine. When the processing speed of the folding machine is fast, manual unloading will lag, causing the strips of instruction manuals to accumulate and become disordered at the discharge port, which will affect the normal continuous operation of the folding machine and restrict the overall production efficiency. In addition, during manual operation, the operator is in direct contact with the discharge port of the equipment, which poses certain safety hazards. Utility Model Content

[0004] This application provides an automatic unloading mechanism for a paper folding machine, which improves unloading efficiency, ensures production continuity, reduces labor costs, and enhances operational safety.

[0005] The automatic unloading mechanism for a paper folding machine provided in this application adopts the following technical solution:

[0006] An automatic unloading mechanism for a paper folding machine includes a frame with a clamping channel for receiving strip-shaped material fed from the conveyor belt of the paper folding mechanism. The clamping channel is positioned corresponding to the discharge end of the conveyor belt and guides the strip-shaped material to the unloading station. It also includes a feeding chain located on one side of the clamping channel, with multiple unloading clamps arranged at intervals along the transmission direction. The unloading clamps move synchronously with the feeding chain. Furthermore, it includes a transmission assembly with a top block facing the feeding chain. When the transmission assembly pushes the top block against the unloading clamp, the clamping opening of the unloading clamp remains open to allow the strip-shaped material from the clamping channel to enter. When the transmission assembly retracts the top block, the clamping opening of the unloading clamp springs back to its original position and clamps and fixes the strip-shaped material.

[0007] Preferably, the transmission assembly includes a cam and a swing arm rotatably mounted on the frame, and a transmission rod slidably mounted on the frame; the top block is mounted on the transmission rod, and a connecting rod is rotatably mounted between the transmission rod and the swing arm, with the end of the swing arm away from the connecting rod abutting against the cam; the cam is used to drive the top block to slide back and forth periodically.

[0008] Preferably, the transmission assembly further includes a return spring for pulling the swing arm to rotate and reset. One end of the return spring is mounted on the frame, and the other end is mounted on the swing arm. The return spring is used to drive the swing arm to abut against the outer peripheral surface of the cam.

[0009] Preferably, it also includes a limiting baffle mounted outside the clamping channel, the limiting baffle periodically moving towards or away from the clamping channel; when the limiting baffle moves towards the clamping channel, the limiting baffle is used to block and limit the strip material on the clamping channel.

[0010] Preferably, the transmission assembly is provided in at least two sets, and the limiting baffle and the top block are respectively provided on each set of transmission assemblies; a rotating rod is provided on the frame, and each set of cams passes through the same rotating rod; when the clamping port of the unloading clamp springs back to its original position and removes the strip material from the clamping channel, the limiting baffle moves toward the clamping channel to block the strip material entering the clamping channel from moving further.

[0011] Preferably, the limiting baffle has a through-hole, and the limiting baffle is adjustablely mounted on the transmission rod by fasteners inserted in the through-hole.

[0012] Preferably, a relief groove is formed on the side wall of the limiting baffle facing the clamping channel, and the width of the relief groove is greater than the width of the clamping channel.

[0013] Preferably, the feed end of the clamping channel is aligned with the discharge end of the conveyor belt of the folding mechanism, and the width of the clamping channel is adapted to the width of the strip material.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] It replaces manual unloading, reduces labor costs, and improves operational safety: It realizes full automation of the unloading process of strip instructions, eliminating the need for operators to manually pick up the materials, completely solving the problems of high labor input and operator fatigue in traditional manual unloading, and significantly reducing labor costs; at the same time, operators do not need to directly contact the equipment's discharge port, avoiding safety hazards to operators during equipment operation and improving overall operational safety.

[0016] It can precisely match the folding and feeding rhythm of the folding machine. After the conveyor belt of the folding machine delivers the strip instruction manual to the unloading station, it can quickly complete the import, clamping, conveying and unloading of the instruction manual. The whole process is smooth and uninterrupted, effectively avoiding the problems of finished product accumulation and disorder caused by the lag of traditional manual unloading. It ensures the continuous and stable operation of the folding machine, significantly improves the overall production efficiency, and adapts to the needs of large-scale production. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the paper folding mechanism installed below the paper folding mechanism and holding strip-shaped materials in the clamping channel;

[0018] Figure 2 yes Figure 1 A schematic diagram of the local structure from another perspective;

[0019] Figure 3 This is a structural schematic diagram of an embodiment of this application.

[0020] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Clamping channel; 3. Feeding chain; 4. Unloading clamp; 5. Transmission assembly; 50. Cam; 51. Swing arm; 52. Transmission rod; 53. Connecting rod; 54. Return spring; 55. Rotating rod; 6. Top block; 7. Limiting baffle; 70. Waist-shaped hole; 71. Relief groove; 8. Transfer belt. Detailed Implementation

[0021] The present application will be further described in detail below with reference to the accompanying drawings.

[0022] This application discloses an automatic unloading mechanism for a paper folding machine.

[0023] Reference Figure 1 , Figure 2The automatic unloading mechanism of the folding machine includes a frame 1, on which a clamping channel 2 is provided. The clamping channel 2 is used to receive the strip-shaped material fed from the conveyor belt 8 of the folding mechanism. The clamping channel 2 is set at the discharge end of the conveyor belt 8 of the folding mechanism and is used to guide the strip-shaped material and send it to the unloading station.

[0024] like Figure 2 , Figure 3 As shown, the clamping channel 2 includes two clamping plates placed opposite each other. The clamping plates are located between the two conveyor belts 8, and their length extends along the discharge direction of the conveyor belt 8. A gap is formed between the two clamping plates for the strip-shaped material to slide into the gap between the clamping plates from the bottom feed end. The feed end at the bottom of the clamping channel 2 is aligned with the discharge end of the conveyor belt 8, and the width of the gap in the clamping channel 2 is adapted to the width of the strip-shaped material. When the strip-shaped material is fed out from the discharge end of the conveyor belt 8 of the folding mechanism, the strip-shaped material will slide from the bottom up from the feed end at the bottom of the clamping channel 2 into the gap between the two clamping plates. At this time, the strip-shaped material is detached from the conveyor belt 8 under the clamping of the two clamping plates.

[0025] like Figure 2 , Figure 3 As shown, it also includes a feeding chain 3 located on one side of the clamping channel 2. The feeding chain 3 is driven by a sprocket meshing with it externally. Multiple unloading clamps 4 are fixedly installed on the outer wall of the feeding chain 3 facing the frame 1. The unloading clamps 4 are arranged evenly at intervals along the transmission direction of the feeding chain 3, and each unloading clamp 4 moves synchronously with the feeding chain 3. A torsion spring is installed on the unloading clamp 4. In its natural state, the torsion spring is used to drive the clamping jaws of the unloading clamp 4 to maintain a clamping state.

[0026] like Figure 2 , Figure 3 As shown, two sets of transmission components 5 are arranged opposite each other on the frame 1. Each transmission component 5 includes a cam 50, a swing arm 51, and a transmission rod 52 slidably mounted on the frame 1. A rotating rod 55 is horizontally rotatably mounted on the frame 1, and the two sets of cams 50 are coaxially fixedly mounted on the same rotating rod 55. A sprocket is coaxially fixedly mounted at the end of the rotating rod 55. The sprocket is used to mesh with an external transmission chain, and the other end of the transmission chain meshes with the output shaft of an external motor. During operation, the motor is started to drive the rotating rod 55 and the cams 50 to rotate synchronously within the frame 1.

[0027] like Figure 2 , Figure 3As shown, the swing arms 51 are located on opposite sides of their respective cams 50, and are rotatably mounted on the frame 1. The rotation axis of the swing arms 51 is aligned with the rotation axis of the rotating rod 55. The transmission assembly 5 also includes a return spring 54 for pulling each swing arm 51 to its original position. One end of the return spring 54 is fixed to the frame 1, and the other end is fixed to the swing arm 51. The return spring 54 drives the swing arm 51 to abut against the outer circumferential surface of the cam 50 located in the same group.

[0028] like Figure 2 , Figure 3 As shown, a top block 6 is fixedly installed at one end of the transmission rod 52 facing the feeding chain 3, and a connecting rod 53 is rotatably connected between the transmission rod 52 and the swing arm 51 located in the same group. When the convex surface of the cam 50 pushes the swing arm 51 to swing backward, the other end of the swing arm 51 will push the transmission rod 52 and the top block 6 forward toward the feeding chain 3 through the connecting rod 53, until the top block 6 pushes open the unloading clamp 4 at the unloading position. At this time, the clamping port of the unloading clamp 4 will remain open to allow the side of the strip material entering the clamping channel 2 to enter the clamping port of the unloading clamp 4.

[0029] As the cam 50 rotates further, its convex surface gradually moves away from the swing arm 51. The swing arm 51, under the force of the return spring 54, will rotate back to its original position. At this point, the swing arm 51 will drive the transmission rod 52 and the top block 6 to retract away from the feeding chain 3 via the connecting rod 53. The clamping opening of the unloading clamp 4 will reset under the restoring force of the torsion spring, clamping and fixing the strip-shaped material located at the clamping opening. The top block 6, driven by the transmission assembly 5, maintains periodic back-and-forth sliding, repeating the cycle.

[0030] like Figure 2 , Figure 3 As shown, a limiting baffle 7 is detachably mounted on the end of the transmission rod 52 of another set of transmission components 5, which is mounted outside the clamping channel 2. Driven by the same set of transmission rods 52, the limiting baffle 7 periodically reciprocates towards or away from the clamping channel 2. A slotted hole 70 is formed through the limiting baffle 7, and the length of the slotted hole 70 extends along the sliding direction of the limiting baffle 7. The limiting baffle 7 is adjustablely tightened and fixed to the end of the transmission rod 52 by fasteners passing through the slotted hole 70. A clearance groove 71 is formed on the side wall of the limiting baffle 7 facing the clamping channel 2, and the width of the clearance groove 71 is greater than the width of the clamping channel 2.

[0031] When the limiting baffle 7 moves towards the clamping channel 2 under the drive of the same group of transmission rods 52, the clamping channel 2 will enter the relief groove 71. At this time, the limiting baffle 7 can block and limit the strip material on the clamping channel 2. By blocking the strip material with the limiting baffle 7, it can be ensured that each strip material entering the clamping channel 2 can be kept at the designated unloading position, ensuring that the subsequent unloading clamp 4 can successfully clamp and fix the strip material.

[0032] like Figure 2 , Figure 3 As shown, when the top block 6 moves away from the unloading station, the unloading clamp 4 at the unloading station will spring back to its original position under the external force of the top block 6, clamping and fixing the side of the strip material at the unloading station. Then, the limiting baffle 7 will move away from the clamping channel 2 until it is completely removed from the unloading path of the strip material. Next, the feeding chain 3 will drive the unloading clamp 4 holding the strip material backward until the idle unloading clamp 4 waiting to be unloaded is rotated back to the unloading station. During this process, the strip material will smoothly rotate out of the clamping channel 2 along with the unloading clamp 4. The unloading clamp 4 can then be used to place the strip material one by one into a packaging box.

[0033] Next, the limiting baffle 7 will move again towards the clamping channel 2 until it blocks the path of the strip material entering the clamping channel 2. The limiting baffle 7 is used to limit the strip material to a designated position in the clamping channel 2 in preparation for the next unloading process, and this cycle continues.

[0034] The implementation principle is as follows: It replaces manual unloading, reduces labor costs, and improves operational safety: It realizes the full automation of the unloading process of strip instructions, eliminating the need for operators to manually pick up the materials, completely solving the problems of high labor input and operator fatigue in traditional manual unloading, and significantly reducing labor costs; at the same time, operators do not need to directly contact the equipment's discharge port, avoiding safety hazards to operators during equipment operation and improving the overall operational safety.

[0035] The mechanism's operating rhythm can be precisely matched with the folding and feeding rhythm of the folding machine. After the conveyor belt 8 of the folding machine delivers the strip instruction manual to the unloading station, the manual can be quickly imported, clamped, conveyed, and unloaded. The whole process is smooth and uninterrupted, effectively avoiding the problems of finished product accumulation and disorder caused by the lag in traditional manual unloading. This ensures the continuous and stable operation of the folding machine, significantly improves the overall production efficiency, and adapts to the needs of large-scale production.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic unloading mechanism for a paper folding machine, comprising a frame (1), characterized in that: The frame (1) is provided with a clamping channel (2) for receiving strip-shaped materials fed from the conveyor belt of the folding mechanism. The clamping channel (2) is provided corresponding to the discharge end of the conveyor belt of the folding mechanism and is used to guide the strip-shaped materials and send them to the unloading station. It also includes a feeding chain (3) located on one side of the clamping channel (2). The feeding chain (3) is provided with a plurality of unloading clamps (4) arranged at intervals along the transmission direction. The unloading clamps (4) follow the feeding chain (3). Synchronous movement; also includes a transmission assembly (5), on which a top block (6) is provided facing the feeding chain (3); when the transmission assembly (5) pushes the top block (6) against the unloading clamp (4), the clamping port of the unloading clamp (4) remains open to allow the strip material on the clamping channel (2) to enter; when the transmission assembly (5) drives the top block (6) to retract, the clamping port of the unloading clamp (4) springs back to reset and clamps and fixes the strip material.

2. The automatic unloading mechanism of the paper folding machine according to claim 1, characterized in that: The transmission assembly (5) includes a cam (50) and a swing arm (51) rotatably mounted on the frame (1), and a transmission rod (52) slidably mounted on the frame (1); the top block (6) is mounted on the transmission rod (52), and a connecting rod (53) is rotatably mounted between the transmission rod (52) and the swing arm (51), and the end of the swing arm (51) away from the connecting rod (53) abuts against the cam (50); the cam (50) is used to drive the top block (6) to slide back and forth periodically.

3. The automatic unloading mechanism of the paper folding machine according to claim 2, characterized in that: The transmission assembly (5) also includes a return spring (54) for pulling the swing arm (51) to rotate and reset. One end of the return spring (54) is set on the frame (1), and the other end of the return spring (54) is set on the swing arm (51). The return spring (54) is used to drive the swing arm (51) to abut against the outer peripheral surface of the cam (50).

4. The automatic unloading mechanism of the paper folding machine according to claim 3, characterized in that: It also includes a limiting baffle (7) mounted outside the clamping channel (2), the limiting baffle (7) periodically moving back and forth in the direction of approaching or moving away from the clamping channel (2); when the limiting baffle (7) moves in the direction of approaching the clamping channel (2), the limiting baffle (7) is used to block and limit the strip material on the clamping channel (2).

5. The automatic unloading mechanism of the paper folding machine according to claim 4, characterized in that: The transmission assembly (5) is provided with at least two sets, and the limiting baffle (7) and the top block (6) are respectively provided on each set of transmission assemblies (5); the frame (1) is provided with a rotating rod (55), and each set of cams (50) passes through the same rotating rod (55); when the clamping port of the unloading clamp (4) springs back to reset and takes out the strip material from the clamping channel (2), the limiting baffle (7) moves toward the clamping channel (2) to block the strip material entering the clamping channel (2) from moving further.

6. The automatic unloading mechanism of the paper folding machine according to claim 5, characterized in that: The limiting baffle (7) has a through waist-shaped hole (70), and the limiting baffle (7) can be adjusted on the transmission rod (52) by fasteners passing through the waist-shaped hole (70).

7. The automatic unloading mechanism of the paper folding machine according to claim 4, characterized in that: The limiting baffle (7) has a relief groove (71) formed on the side wall facing the clamping channel (2), and the width of the relief groove (71) is greater than the width of the clamping channel (2).

8. The automatic unloading mechanism of the paper folding machine according to claim 1, characterized in that: The feeding end of the clamping channel (2) is aligned with the discharge end of the conveyor belt of the folding mechanism, and the width of the clamping channel (2) is adapted to the width of the strip material.

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