A folding knife device and bag opener

Abstract

The utility model provides a kind of folding knife device and bag opening machine, belong to sewing equipment technical field.This folding knife device includes base, is provided with connecting block one and connecting block two on base, connecting block one and connecting block two are respectively equipped with left folding knife module and right folding knife module, connecting block one is movably connected on base, drive mechanism one that still is provided with on base driving connecting block one left and right movement;Or / and connecting block two is movably connected on base, drive mechanism two that still is provided with on base driving connecting block two left and right movement.This folding knife device can automatically adjust the distance between left folding knife module and right folding knife module, the size in the length direction of pocket is conveniently adjusted.

Description

Technical Field

[0001] This utility model belongs to the field of sewing equipment technology, and relates to a folding knife device and a bag opening machine. Background Technology

[0002] A pocket-opening machine is a machine that uses a folding knife device to fold cut fabric before sewing it to form a pocket. The folding action is as follows: when the entire upper folding knife device moves above the fabric, the lifting cylinder drives the four folding knives in four directions to descend to the four sides of the fabric. Simultaneously, the four horizontal cylinders actuate, folding the fabric, which is then clamped and sewn. For a detailed explanation of the working principle of the pocket-opening machine and folding knife device, please refer to the patent document with application number 202122873800.2, which describes a garment pocket-opening machine.

[0003] When the length and width of the pocket change, the distance between the folding blades in the folding device needs to be adjusted, requiring a manual mold change operation: The debugging personnel first move the folding device into the rectangular groove that forms the pocket, then loosen the fixing bolts of the horizontal cylinder seat on the folding device, then pull the left folding blade module to align the folding blade with the four sides, fix the horizontal cylinder seat, and reset the folding device to complete one mold change operation on the folding device.

[0004] In existing folding knife devices, multiple steps are required to adjust the distance between the folding knives during a single mold-changing operation, which is cumbersome and time-consuming. Summary of the Invention

[0005] This utility model addresses the aforementioned problems in the existing technology by providing a folding knife device. The technical problem to be solved by this utility model is: how to conveniently adjust the size of the pocket.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A folding knife device includes a base, on which a first connecting block and a second connecting block are disposed. A left folding knife module and a right folding knife module are respectively mounted on the first connecting block and the second connecting block. The device is characterized in that the first connecting block is movably connected to the base, and the base is further provided with a first driving mechanism for driving the first connecting block to move left and right; or / and the second connecting block is movably connected to the base, and the base is further provided with a second driving mechanism for driving the second connecting block to move left and right.

[0008] In this folding knife device, the left folding knife module is mounted on connecting block one, and the right folding knife module is mounted on connecting block two. When it is necessary to adjust the size of the pocket in the length direction, the drive mechanism one drives the connecting block one to move left and right, thereby adjusting the distance between the left folding knife module and the right folding knife module, so as to conveniently adjust the size of the pocket.

[0009] In another embodiment, the connecting block 2 is driven by the driving mechanism 2 to move left and right, thereby adjusting the distance between the left folding knife module and the right folding knife module to adjust the size of the pocket.

[0010] In another embodiment, while drive mechanism one drives connecting block one to move left and right, drive mechanism two drives connecting block two to move left and right, thereby adjusting the distance between the left folding knife module and the right folding knife module to adjust the size of the pocket. At this time, the two drive mechanisms can be controlled electronically to move synchronously, so that the left folding knife module and the right folding knife module move inward or outward at the same time, so that the size of the pocket in the length direction can be automatically adjusted symmetrically.

[0011] This folding knife device can automatically adjust the distance between the left and right folding knife modules by driving the connecting block 1 to move left and right through the first driving mechanism, or driving the connecting block 2 to move left and right through the second driving mechanism, or driving the connecting block 1 to move left and right through the first driving mechanism while simultaneously driving the connecting block 2 to move left and right through the second driving mechanism. This allows for convenient adjustment of the dimensions in the length direction of the pocket.

[0012] In the aforementioned folding knife device, the drive mechanism includes a motor, a lead screw is connected to the output shaft of the motor, a nut is threaded onto the lead screw, and a connecting block is fixed to the nut.

[0013] The motor is mounted on the base. The motor drives the lead screw to rotate, causing the nut to move axially relative to the lead screw. The nut then drives the connecting block to move left and right, thereby adjusting the distance between the left and right folding knife modules.

[0014] In the aforementioned folding knife device, a mounting plate is provided on the base, and two bearing seats are provided on the mounting plate. Each bearing seat is provided with a bearing, the lead screw is mounted on the two bearings, and the motor is mounted on one side of the mounting plate.

[0015] The motor is mounted on the base via mounting plate one, and the lead screw is connected to mounting plate one via bearing seats. Two bearings are sleeved on the lead screw, allowing the lead screw to rotate relative to the bearings, which greatly improves the stability of the lead screw during rotation.

[0016] As one embodiment, the motor's output shaft is connected to the lead screw via a coupling.

[0017] In the aforementioned folding knife device, the second driving mechanism includes a motor, a lead screw is connected to the output shaft of the motor, a nut is threaded onto the lead screw, and the first connecting block is fixed to the nut.

[0018] In this embodiment, the structure of the second drive mechanism is the same as that of the first drive mechanism. In other embodiments, the structure of the second drive mechanism may also be different from that of the first drive mechanism.

[0019] In the aforementioned folding knife device, a cylinder is mounted on the connecting block, the piston rod of the cylinder extends laterally and a fixing plate is mounted on the piston rod, a cylinder is mounted on the fixing plate, the piston rod of the cylinder extends vertically, and the left folding knife module is mounted on the piston rod of the cylinder.

[0020] When folding the fabric, cylinder one drives the fixed plate to move left and right, the fixed plate drives the left folding knife module to move left and right, and cylinder two drives the left folding knife module to move up and down.

[0021] In the aforementioned folding knife device, a guide rail is provided on the base, and a slider is installed at the bottom of the connecting block, with the slider slidably connected to the guide rail.

[0022] The guide rail and the slider form a guiding structure, which greatly improves the stability of the connecting block when it moves.

[0023] In the aforementioned folding knife device, a second slider is mounted on the fixed plate, and the second slider is slidably connected to a first guide rail.

[0024] The guide rail and slider 2 together form a guiding structure, which greatly improves the stability of the fixed plate when it moves.

[0025] In the aforementioned folding knife device, a cylinder is mounted on the connecting block 2. The piston rod of the cylinder 1 extends laterally and a fixing plate is mounted on the piston rod. A cylinder 2 is mounted on the fixing plate. The piston rod of the cylinder 2 extends vertically, and the right folding knife module is mounted on the piston rod of the cylinder 2.

[0026] When folding the fabric, cylinder one drives the fixed plate to move left and right, the fixed plate drives the right folding knife module to move left and right, and cylinder two drives the right folding knife module to move up and down.

[0027] In the aforementioned folding knife device, the drive mechanism includes a motor and a mounting plate. The motor is fixed on the mounting plate, and a synchronous pulley is provided on the output shaft of the motor. A synchronous pulley is provided on the mounting plate. A synchronous belt is tensioned and connected to the synchronous pulley and the synchronous pulley. A clamp is installed on the synchronous belt, and a connecting block is fixed on the clamp.

[0028] Driven by the motor, synchronous pulley one and synchronous pulley two drive the synchronous belt to move. When the clamp moves with the synchronous belt, it drives connecting block one to move left and right, thereby adjusting the distance between the left folding blade module and the right folding blade module.

[0029] In other embodiments, the timing pulley and timing belt can be replaced by a gear and a rack, respectively. The rack is fixed to the connecting block 1. At this time, the gear is driven to rotate by the motor, and the gear drives the rack to move left and right. The connecting block 1 moves left and right with the rack.

[0030] In the aforementioned folding knife device, a horizontally extending guide rail is provided on the mounting plate, and a slider is installed on the clamping piece, with the slider slidably connected to the guide rail.

[0031] The guide rail 2 and slider 3 form a guiding structure, which greatly improves the stability of the mounting plate 2 when it moves.

[0032] In other embodiments, the guide rail and slider assembly consisting of guide rail two and slider three can be replaced with a structure of linear bearing slider with guide rail, or a structure of linear bearing with sliding shaft.

[0033] This utility model also provides a bag opening machine, which includes any of the above-mentioned folding knife devices.

[0034] Compared with the prior art, the advantages of this utility model are as follows:

[0035] 1. This folding knife device can automatically adjust the distance between the left and right folding knife modules, making it convenient to adjust the dimensions in the length direction of the pocket.

[0036] 2. The folding knife device uses electronic control to synchronize the operation of two drive mechanisms, causing the left and right folding knife modules to move inward or outward simultaneously, so that the length of the pocket can be automatically adjusted symmetrically. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the folding knife device;

[0038] Figure 2 This is a schematic diagram of drive mechanism one and drive mechanism two mounted on the base;

[0039] Figure 3 This is a schematic diagram of connecting block one installed on guide rail one;

[0040] Figure 4 This is a schematic diagram of the drive mechanism one in Embodiment 2.

[0041] In the diagram: 1. Base; 2. Connecting Block 1; 3. Connecting Block 2; 4. Left Folding Blade Module; 5. Right Folding Blade Module; 6. Drive Mechanism 1; 7. Drive Mechanism 2; 8. Motor; 9. Lead Screw; 10. Nut; 11. Mounting Plate 1; 12. Bearing Seat; 13. Cylinder 1; 14. Fixing Plate; 15. Cylinder 2; 16. Guide Rail 1; 17. Slider 1; 18. Slider 2; 19. Mounting Plate 2; 20. Synchronous Wheel 1; 21. Synchronous Wheel 2; 22. Synchronous Belt; 23. Clamping Plate; 24. Guide Rail 2; 25. Slider 3. Detailed Implementation

[0042] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0043] Example 1

[0044] like Figure 1-2 As shown, this folding knife device includes a base 1, on which a connecting block 2 and a connecting block 3 are provided. A left folding knife module 4 and a right folding knife module 5 are respectively installed on the connecting block 2 and the connecting block 3. The connecting block 2 is movably connected to the base 1. The base 1 is also provided with a drive mechanism 6 for driving the connecting block 2 to move left and right.

[0045] In this folding knife device, the left folding knife module 4 is mounted on the connecting block 2, and the right folding knife module 5 is mounted on the connecting block 3. When it is necessary to adjust the size of the pocket in the length direction, the drive mechanism 6 drives the connecting block 2 to move left and right, thereby adjusting the distance between the left folding knife module 4 and the right folding knife module 5, so as to conveniently adjust the size of the pocket.

[0046] In another embodiment, the connecting block 2 3 is movably connected to the base 1. The base 1 is also provided with a driving mechanism 2 7 that drives the connecting block 2 3 to move left and right. The driving mechanism 2 7 drives the connecting block 2 3 to move left and right, thereby adjusting the distance between the left folding knife module 4 and the right folding knife module 5 to adjust the size of the pocket.

[0047] In another embodiment, connecting block 2 is movably connected to base 1. Base 1 is also equipped with a drive mechanism 6 that drives connecting block 2 to move left and right. Connecting block 3 is movably connected to base 1, and base 1 is also equipped with a drive mechanism 7 that drives connecting block 3 to move left and right. While drive mechanism 6 drives connecting block 2 to move left and right, drive mechanism 7 drives connecting block 3 to move left and right, thereby adjusting the distance between the left folding knife module 4 and the right folding knife module 5 to adjust the pocket size. At this time, the two drive mechanisms can be electrically controlled to move synchronously, causing the left folding knife module 4 and the right folding knife module 5 to move inward or outward simultaneously, so that the pocket's length can be automatically adjusted symmetrically.

[0048] This folding knife device can automatically adjust the distance between the left folding knife module 4 and the right folding knife module 5 by driving the connecting block 2 to move left and right through the drive mechanism 6, or driving the connecting block 3 to move left and right through the drive mechanism 7, or driving the connecting block 2 to move left and right through the drive mechanism 6 and the connecting block 2 to move left and right through the drive mechanism 7. This allows for convenient adjustment of the dimensions in the length direction of the pocket.

[0049] like Figure 2As shown, in this embodiment, the drive mechanism 6 includes a motor 8, a lead screw 9 is connected to the output shaft of the motor 8, a nut 10 is threaded onto the lead screw 9, and a connecting block 2 is fixed on the nut 10.

[0050] The motor 8 is mounted on the base 1. The motor 8 drives the lead screw 9 to rotate, causing the nut 10 to move axially relative to the lead screw 9. The nut 10 drives the connecting block 2 to move left and right, thereby adjusting the distance between the left folding knife module 4 and the right folding knife module 5.

[0051] like Figure 2 As shown, in this embodiment, a mounting plate 11 is provided on the base 1, and two bearing seats 12 are provided on the mounting plate 11. Bearings (not shown) are provided on the bearing seats 12 respectively. The lead screw 9 is installed on the two bearings, and the motor 8 is installed on one side of the mounting plate 11.

[0052] The motor 8 is mounted on the base 1 via the mounting plate 11. The lead screw 9 is connected to the mounting plate 11 via the bearing seat 12. Two bearings are sleeved on the lead screw 9, allowing the lead screw 9 to rotate relative to the bearings, which greatly improves the stability of the lead screw 9 during rotation.

[0053] In one embodiment, the output shaft of the motor 8 is connected to the lead screw 9 via a coupling.

[0054] like Figure 2 As shown, in this embodiment, the second drive mechanism 7 includes a motor 8, a lead screw 9 is connected to the output shaft of the motor 8, a nut 10 is threaded onto the lead screw 9, and the first connecting block 2 is fixed on the nut 10.

[0055] In this embodiment, the structure of the second drive mechanism 7 is the same as that of the first drive mechanism 6. In other embodiments, the structure of the second drive mechanism 7 may also be different from that of the first drive mechanism 6.

[0056] like Figure 1 As shown, in this embodiment, a cylinder 13 is installed on the connecting block 2. The piston rod of the cylinder 13 extends laterally and a fixing plate 14 is installed on the piston rod. A cylinder 2 15 is installed on the fixing plate 14. The piston rod of the cylinder 2 15 extends vertically, and the left folding knife module 4 is installed on the piston rod of the cylinder 2 15.

[0057] When folding the fabric, cylinder 13 drives the fixing plate 14 to move left and right, the fixing plate 14 drives the left folding knife module 4 to move left and right, and cylinder 2 15 drives the left folding knife module 4 to move up and down.

[0058] like Figure 1 and 3 As shown, in this embodiment, a guide rail 16 is provided on the base 1, and a slider 17 is installed on the bottom of the connecting block 2. The slider 17 is slidably connected to the guide rail 16.

[0059] The guide rail 16 and the slider 17 form a guiding structure, which greatly improves the stability of the connecting block 2 when it moves.

[0060] like Figure 3 As shown, in this embodiment, a second slider 18 is installed on the fixed plate 14, and the second slider 18 is slidably connected to the first guide rail 16.

[0061] The guide rail 16 and the slider 2 18 form a guiding structure, which greatly improves the stability of the fixed plate 14 when it moves.

[0062] like Figure 1 As shown, in this embodiment, a cylinder 13 is installed on the connecting block 2 3. The piston rod of the cylinder 13 extends laterally and a fixing plate 14 is installed on the piston rod. A cylinder 2 15 is installed on the fixing plate 14. The piston rod of the cylinder 2 15 extends vertically, and the right folding knife module 5 is installed on the piston rod of the cylinder 2 15.

[0063] When folding the fabric, cylinder 13 drives the fixing plate 14 to move left and right, the fixing plate 14 drives the right folding knife module 5 to move left and right, and cylinder 2 15 drives the right folding knife module 5 to move up and down.

[0064] Example 2

[0065] This embodiment is basically the same in structure and principle as Embodiment 1, the difference being that, Figure 4 As shown, the drive mechanism 6 includes a motor 8 and a mounting plate 19. The motor 8 is fixed on the mounting plate 19. A synchronous pulley 20 is provided on the output shaft of the motor 8. A synchronous pulley 21 is provided on the mounting plate 19. A synchronous belt 22 is tensioned and connected to the synchronous pulley 20 and the synchronous pulley 21. A clamping plate 23 is installed on the synchronous belt 22. A connecting block 2 is fixed on the clamping plate 23.

[0066] Mounting plate 219 is fixed on base 2. Driven by motor 8, synchronous pulley 120 and synchronous pulley 21 drive synchronous belt 22 to move. When clamp 23 moves with synchronous belt 22, it drives connecting block 12 to move left and right, thereby adjusting the distance between left folding knife module 4 and right folding knife module 5.

[0067] In other embodiments, the timing pulley and timing belt 22 can be replaced by a gear and a rack, respectively. The rack is fixed to the connecting block 2. In this case, the motor 8 drives the gear to rotate, and the gear drives the rack to move left and right. The connecting block 2 moves left and right with the rack.

[0068] like Figure 4 As shown, in this embodiment, a horizontally extending guide rail 24 is provided on the mounting plate 2 19, and a slider 3 25 is installed on the clamp 23, with the slider 3 25 slidably connected to the guide rail 2 24.

[0069] The guide rail 24 and the slider 3 25 form a guiding structure, which greatly improves the stability of the mounting plate 2 19 when it moves.

[0070] In other embodiments, the guide rail and slider assembly consisting of guide rail 24 and slider 3 25 can be replaced with a structure of linear bearing slider with guide rail, or a structure of linear bearing with sliding shaft.

[0071] This utility model also provides a bag opening machine, which includes any of the above-mentioned folding knife devices.

[0072] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A folding knife device, comprising a base (1), wherein a connecting block one (2) and a connecting block two (3) are disposed on the base (1), and a left folding knife module (4) and a right folding knife module (5) are respectively mounted on the connecting block one (2) and the connecting block two (3), characterized in that, The first connecting block (2) is movably connected to the base (1), and the base (1) is also provided with a first driving mechanism (6) for driving the first connecting block (2) to move left and right; or / and the second connecting block (3) is movably connected to the base (1), and the base (1) is also provided with a second driving mechanism (7) for driving the second connecting block (3) to move left and right.

2. The folding knife device according to claim 1, characterized in that, The drive mechanism (6) includes a motor (8), a lead screw (9) is connected to the output shaft of the motor (8), a nut (10) is threaded onto the lead screw (9), and the connecting block (2) is fixed on the nut (10).

3. A folding knife device according to claim 2, characterized in that, The base (1) is provided with a mounting plate (11), and the mounting plate (11) is provided with two bearing seats (12), and the bearing seats (12) are respectively provided with bearings. The lead screw (9) is installed on the two bearings, and the motor (8) is installed on one side of the mounting plate (11).

4. A folding knife device according to claim 1, characterized in that, The second drive mechanism (7) includes a motor (8), a lead screw (9) is connected to the output shaft of the motor (8), a nut (10) is threaded onto the lead screw (9), and the first connecting block (2) is fixed on the nut (10).

5. A folding knife device according to claim 1, 2, 3, or 4, characterized in that, A cylinder 1 (13) is installed on the connecting block 1 (2). The piston rod of the cylinder 1 (13) extends laterally and a fixing plate (14) is installed on the piston rod. A cylinder 2 (15) is installed on the fixing plate (14). The piston rod of the cylinder 2 (15) extends vertically. The left folding knife module (4) is installed on the piston rod of the cylinder 2 (15).

6. A folding knife device according to claim 5, characterized in that, The base (1) is provided with a guide rail (16), and the bottom of the connecting block (2) is equipped with a slider (17), which is slidably connected to the guide rail (16).

7. A folding knife device according to claim 1, 2, 3, or 4, characterized in that, A cylinder 1 (13) is installed on the connecting block 2 (3). The piston rod of the cylinder 1 (13) extends laterally and a fixing plate (14) is installed on the piston rod. A cylinder 2 (15) is installed on the fixing plate (14). The piston rod of the cylinder 2 (15) extends vertically. The right folding knife module (5) is installed on the piston rod of the cylinder 2 (15).

8. A folding knife device according to claim 1, characterized in that, The drive mechanism 1 (6) includes a motor (8) and a mounting plate 2 (19). The motor (8) is fixed on the mounting plate 2 (19). A synchronous pulley 1 (20) is provided on the output shaft of the motor (8). A synchronous pulley 2 (21) is provided on the mounting plate 2 (19). A synchronous belt (22) is tensioned and connected to the synchronous pulley 1 (20) and the synchronous pulley 2 (21). A clamping plate (23) is installed on the synchronous belt (22). The connecting block 1 (2) is fixed on the clamping plate (23).

9. A folding knife device according to claim 8, characterized in that, The mounting plate 2 (19) is provided with a horizontally extending guide rail 2 (24), and the clamp 3 (25) is installed on the clamp 23. The slider 3 (25) is slidably connected to the guide rail 2 (24).

10. A bag-opening machine, characterized in that, The bag opener includes a folding knife device as described in any one of claims 1-9.

Images