Leather cutting mechanism with positioning function

Abstract

The utility model relates to the field of cutting machine especially relates to a leather cutting mechanism with positioning function, including conveying frame, cutting frame and bottom cabinet, the bottom end of conveying frame inboard and located middle assembly has bottom cabinet, the inboard rotation of conveying frame is connected with conveyer belt, the inboard of bottom cabinet is provided with the lifting mechanism for the up and down adjustment of cutting frame to the top reset spring of bottom cabinet, the bottom end of cutting frame is connected with the lower pressing plate of sliding, and the bottom end of lower pressing plate is assembled with cutter, the utility model discloses through placing different thickness and leather on conveyer belt, at this time, through the conveyer belt drive leather to be conveyed to the below of cutting frame, and through the lifting mechanism drive cutting frame, lower pressing plate and cutter adjust according to the thickness of leather, thereby effectively adjusting and cutting the leather of different thickness, so as to improve the convenience of cutting frame, lower pressing plate and cutter up and down adjustment, and when cutting frame moves upward, thereby facilitating the replacement and maintenance of cutter.

Description

Technical Field

[0001] This utility model relates to the field of cutting machines, and in particular to a leather cutting mechanism with positioning function. Background Technology

[0002] In the production of leather products (such as bags, shoes, and leather goods), leather cutting is one of the core processes. The cutting accuracy directly determines the quality of subsequent sewing processes and the utilization rate of leather raw materials.

[0003] Workers rely on measuring tapes and templates to mark the leather cutting positions, and then use cutters or cutting machines to cut the leather. This method has problems such as low positioning accuracy (the error is usually 1-3mm), low efficiency (the average daily cutting volume per person is less than 500 pieces), high labor intensity, and easy to waste leather due to human error, with a raw material loss rate as high as 8%-guide rod (12)%.

[0004] When using the above-mentioned technology, the following technical problems were found in the existing technology: Currently available cutting machines require specific adjustments to the upper frame to match processing needs due to differences in the specifications of the cutting tools and the characteristics of the materials used. However, this adjustment process often requires additional tools, which is not only cumbersome but also time-consuming, directly affecting overall processing efficiency. Therefore, we designed a leather cutting mechanism with positioning function to provide an alternative technical solution to the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a leather cutting mechanism with positioning function to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A leather cutting mechanism with positioning function includes a conveyor frame, a cutting frame, and a base cabinet. The base cabinet is installed at the bottom and middle of the inner side of the conveyor frame. A conveyor belt is rotatably connected to the inner side of the conveyor frame. A top return spring is provided on the top of the base cabinet. A lifting mechanism for adjusting the cutting frame up and down is provided on the inner side of the base cabinet. A lower pressure plate is slidably connected to the bottom of the cutting frame. A cutting tool is installed at the bottom of the lower pressure plate.

[0008] The lifting mechanism includes a servo motor, guide rods, transmission rollers, transmission frames, eccentric wheels, and transmission shafts. The four ends of the guide rods are slidably connected to the inside of the cabinet. The bottom ends of the two guide rods on the same side are fixed with transmission frames. The top ends of the guide rods pass through the cabinet and are fixed to the cutting frame.

[0009] The cabinet has a drive shaft rotatably connected to both ends of its inner side, and an eccentric wheel is fixed to both ends of the outer side of the drive shaft. A wheel sleeve is rotatably connected to the outer side of the eccentric wheel, and the bottom end of the wheel sleeve is rotatably connected to the drive frame.

[0010] A servo motor is installed on one side of the inner side of the base cabinet. A transmission wheel is fixed to the output end of the servo motor. One end of the transmission frame passes through the base cabinet and is fixed to a transmission roller. The transmission roller and the transmission wheel are rotatably connected by a meshing belt.

[0011] The cabinet has two rotatably connected limit rods on its inner side, and two rotatably connected linkage rods on its outer sides. The end of the linkage rod away from the limit rod is rotatably connected to the transmission frame.

[0012] The inner side of the cutting frame is provided with a moving mechanism for cutting leather. The moving mechanism includes a cutting seat, a wheel sleeve and an electric slide rail. The bottom of the inner side of the cutting frame is fixed with the electric slide rail. The top of the electric slide rail is slidably connected to the cutting seat. Both ends of the top of the cutting seat are equipped with mounting frames. The top of the mounting frames is equipped with cylinders. The output end of the cylinder passes through the cutting seat and the cutting frame and is fixed to the lower pressure plate.

[0013] The mounting frame has a sliding lower pressure arm inside, and a guide rod is rotatably connected to the bottom end of one end of the lower pressure arm. The inside of the lower pressure arm is fixed to the output end of the cylinder. The bottom end of the guide rod is slidably connected to the cutting seat. A return spring is sleeved on the outside of the guide rod.

[0014] The bottom of the inner side of the cutting frame is provided with a guide groove, and the inner side of the guide groove is slidably connected to the lower pressure plate.

[0015] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0016] Compared with the prior art, the beneficial effects of this utility model are: this utility model can flexibly adjust the height of the cutting frame, the lower pressure plate and the blade according to the thickness of the leather through the lifting mechanism (servo motor, guide rod, transmission wheel, transmission frame, eccentric wheel and transmission shaft), which can meet the cutting needs of leather of different thicknesses. At the same time, the lifting mechanism can drive the cutting frame to move upward, which makes it easier to replace and repair the blade and reduce the difficulty of maintenance.

[0017] The moving mechanism (cutting seat, electric slide rail) drives the cutter to reciprocate, and in conjunction with the downward action of the cylinder and the elastic reset function of the return spring, it ensures that the cutting action is accurate and efficient, and improves the cutting quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure between the cutting rack and the base cabinet of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the cutting seat of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure between the cutting seat, the cylinder, and the cutter of this utility model;

[0023] Figure 5 This is a schematic diagram of the inner structure of the mounting frame of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure between the guide rod and the cutting frame of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure between the servo motor and the drive shaft of this utility model;

[0026] Figure 8 This is a schematic diagram of the structure between the transmission roller and the transmission frame of this utility model.

[0027] In the diagram: 1. Conveyor frame; 2. Cutting frame; 3. Base cabinet; 4. Cutting seat; 5. Guide rod; 6. Wheel sleeve; 7. Lower pressure plate; 8. Cutting tool; 9. Electric slide rail; 10. Cylinder; 11. Servo motor; 12. Guide rod; 13. Transmission roller; 14. Transmission frame; 15. Eccentric wheel; 16. Transmission shaft; 17. Limit rod; 18. Linkage rod; 19. Lower pressure arm; 20. Return spring; 21. Mounting frame. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Currently available cutting machines require adjustments to their upper frame to match processing needs due to variations in blade specifications and material characteristics. However, this adjustment process often necessitates the use of additional tools, which is not only cumbersome but also time-consuming, directly impacting overall processing efficiency.

[0030] Please see Figure 1-8 This utility model provides a technical solution: a leather cutting mechanism with positioning function, including a conveyor frame 1, a cutting frame 2 and a base cabinet 3. The base cabinet 3 is installed at the bottom and middle of the inner side of the conveyor frame 1. A conveyor belt is rotatably connected to the inner side of the conveyor frame 1. The top return spring 20 of the base cabinet 3 is provided. A lifting mechanism for adjusting the cutting frame 2 up and down is provided on the inner side of the base cabinet 3. A lower pressure plate 7 is slidably connected to the bottom of the cutting frame 2. A knife 8 is installed at the bottom of the lower pressure plate 7.

[0031] When leather needs to be cut, leathers of different thicknesses are placed on the conveyor belt. The conveyor belt then transports the leather to the bottom of the cutting frame 2. The lifting mechanism adjusts the cutting frame 2, the lower pressure plate 7, and the cutter 8 according to the thickness of the leather, thus effectively adjusting the cutting of leathers of different thicknesses. This improves the ease of adjusting the cutting frame 2, the lower pressure plate 7, and the cutter 8. Furthermore, when the cutting frame 2 moves upward, it facilitates the replacement and maintenance of the cutter 8.

[0032] The lifting mechanism includes a servo motor 11, guide rods 12, transmission rollers 13, transmission frame 14, eccentric wheels 15, and transmission shaft 16. The four ends of the guide rods 12 are slidably connected to the inside of the cabinet 3. The bottom of the outer side of the two guide rods 12 at the same end is fixed with the transmission frame 14. The top of the guide rods 12 passes through the cabinet 3 and is fixed with the cutting frame 2. The two ends of the inside of the cabinet 3 are rotatably connected with the transmission shaft 16. The two ends of the outer side of the transmission shaft 16 are fixed with the eccentric wheels 15. The outer side of the eccentric wheels 15 is rotatably connected with the wheel sleeve 6. The bottom end of the wheel sleeve 6 is rotatably connected with the transmission frame 14. The servo motor 11 is installed on one side of the inside of the cabinet 3. The output end of the servo motor 11 is fixed with the transmission wheel. One end of the transmission frame 14 passes through the cabinet 3 and is fixed with the transmission roller 13. The transmission roller 13 and the transmission wheel are rotatably connected by a meshing belt.

[0033] Specifically, when it is necessary to replace the cutter 8, or to adjust the cutting frame 2 according to the thickness and style of the leather, the servo motor 11 is started to drive the transmission wheel to rotate. The transmission wheel drives the transmission roller 13 to rotate synchronously through the meshing belt. The transmission roller 13 drives the transmission shaft 16 to rotate, and the transmission shaft 16 drives the eccentric wheel 15 to rotate. At this time, using the eccentric principle of the connection between the eccentric wheel 15 and the transmission shaft 16, the wheel sleeve 6, the transmission frame 14 and the guide rod 12 move up and down along the guide of the base cabinet 3, so that the guide rod 12 drives the cutting frame 2, the lower pressure plate 7 and the cutter 8 to adjust up and down according to the thickness and specifications of the leather, thereby effectively replacing and adjusting the cutter 8.

[0034] Both ends of the inner side of the base cabinet 3 are rotatably connected to limit rods 17, and both sides of the outer side of the limit rods 17 are rotatably connected to linkage rods 18. The end of the linkage rod 18 away from the limit rods 17 is rotatably connected to the transmission frame 14.

[0035] When the guide rod 12 drives the guide rod 12 and the transmission frame 14 to adjust the cutting frame 2 up and down, the transmission frame 14 drives the linkage rod 18 and the limit rod 17 to rotate. The limit rod 17 and the linkage rod 18 are connected to the transmission frame 14, thereby effectively limiting the transmission frame 14 and effectively limiting the range of the guide rod 12 and the cutting frame 2 to ensure the stability of the cutting frame 2 sliding up and down.

[0036] The inner side of the cutting frame 2 is provided with a moving mechanism for cutting leather. The moving mechanism includes a cutting seat 4, a wheel sleeve 6 and an electric slide rail 9. The bottom of the inner side of the cutting frame 2 is fixed with the electric slide rail 9. The top of the electric slide rail 9 is slidably connected to the cutting seat 4. Both ends of the top of the cutting seat 4 are equipped with mounting frames 21. The top of the mounting frame 21 is equipped with a cylinder 10. The output end of the cylinder 10 passes through the cutting seat 4 and the cutting frame 2 and is fixed to the lower pressure plate 7.

[0037] Specifically, when it is necessary to cut the leather, the leather is transported to the bottom of the cutting frame 2 by the conveyor belt. At this time, the electric slide rail 9 is activated to drive the cutting seat 4 to move back and forth. The cutting seat 4 drives the cylinder 10, the lower pressure plate 7 and the cutter 8 to move synchronously. Thus, the cylinder 10 is activated to drive the lower pressure plate 7 and the cutter 8 to contact the leather, so that the reciprocating cutter 8 cuts the leather.

[0038] A lower pressure arm 19 is slidably connected to the inner side of the mounting frame 21. A guide rod 5 is rotatably connected to the bottom end of one end of the lower pressure arm 19. The inside of the lower pressure arm 19 is fixed to the output end of the cylinder 10. The bottom end of the outer side of the guide rod 5 is slidably connected to the cutting seat 4. A return spring 20 is sleeved on the outer side of the guide rod 5.

[0039] The cylinder 10 drives the lower pressure arm 19 to compress the return spring 20 along the guide of the mounting frame 21, so that the output end of the cylinder 10 drives the lower pressure plate 7 and the cutter 8 to approach the leather for cutting. After the cutting is completed, the elasticity of the return spring 20 effectively resets the lower pressure plate 7 and the cutter 8, thereby ensuring the stability and practicality of the cutter 8 sliding up and down for cutting.

[0040] A guide groove is provided at the bottom of the inner side of the cutting frame 2. The inner side of the guide groove is slidably connected to the lower pressure plate 7. The guide groove ensures the stability of the reciprocating motion of the lower pressure plate 7 and the cutter 8 at the bottom of the cutting frame 2.

[0041] The leather cutting mechanism with positioning function provided by this utility model is used as follows:

[0042] The leather to be cut is placed on the conveyor belt inside the conveyor frame 1. The conveyor belt transports the leather to directly below the cutting frame 2. Depending on the thickness of the leather, the servo motor 11 inside the base cabinet 3 is started. Its output drives the transmission wheel to rotate, which in turn drives the transmission roller 13 and the transmission shaft 16 to rotate synchronously through the meshing belt. The transmission shaft 16 drives the outer eccentric wheel 15 to rotate. Using the eccentric principle, the wheel sleeve 6, the transmission frame 14, and the guide rod 12 slide up and down along the base cabinet 3, thereby adjusting the cutting frame 2, the lower pressure plate 7, and the cutter 8 to a height suitable for the leather thickness. During the adjustment process, the transmission frame 14 drives the linkage rod 18 and the limit rod 17 to rotate. Through the cooperation of the limit rod 17 and the linkage rod 18, the up and down movement range of the transmission frame 14, the guide rod 12, and the cutting frame 2 is limited to ensure the stability of the adjustment.

[0043] After the leather is in place, the electric slide rail 9 inside the cutting frame 2 is activated, which drives the cutting seat 4 to move back and forth, and simultaneously drives the mounting frame 21, cylinder 10, lower pressure plate 7 and cutter 8 to move; the cylinder 10 is activated, and its output end pushes the lower pressure arm 19 to slide along the mounting frame 21, compressing the return spring 20 on the outside of the guide rod 5, and at the same time drives the lower pressure plate 7 and cutter 8 to contact the leather downward, and the cutting is completed by the reciprocating cutter 8;

[0044] After cutting, the elastic force of the return spring 20 pushes the lower pressure arm 19, the lower pressure plate 7 and the cutter 8 to return to their original positions; the guide groove on the inner side of the cutting frame 2 slides with the lower pressure plate 7 to ensure the stability of the reciprocating motion of the cutter 8.

[0045] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A leather cutting mechanism with positioning function, characterized in that, The device includes a conveyor frame (1), a cutting frame (2), and a base cabinet (3). The base cabinet (3) is mounted at the bottom and in the middle of the inner side of the conveyor frame (1). A conveyor belt is rotatably connected to the inner side of the conveyor frame (1). The top return spring (20) of the base cabinet (3) is provided. A lifting mechanism for adjusting the cutting frame (2) is provided on the inner side of the base cabinet (3). A lower pressure plate (7) is slidably connected to the bottom of the cutting frame (2). A knife (8) is mounted at the bottom of the lower pressure plate (7).

2. The leather cutting mechanism with positioning function according to claim 1, characterized in that, The lifting mechanism includes a servo motor (11), a guide rod (12), a transmission roller (13), a transmission frame (14), an eccentric wheel (15), and a transmission shaft (16). The four ends of the guide rod (12) are slidably connected to the inner side of the cabinet (3). The bottom ends of the two guide rods (12) on the same end are fixed with the transmission frame (14). The top end of the guide rod (12) passes through the cabinet (3) and is fixed to the cutting frame (2).

3. The leather cutting mechanism with positioning function according to claim 2, characterized in that, The inner two ends of the cabinet (3) are rotatably connected to a drive shaft (16), and the outer two ends of the drive shaft (16) are fixed with an eccentric wheel (15). The outer side of the eccentric wheel (15) is rotatably connected to a wheel sleeve (6), and the bottom end of the wheel sleeve (6) is rotatably connected to the drive frame (14).

4. A leather cutting mechanism with positioning function according to claim 3, characterized in that, A servo motor (11) is installed on one side of the inner side of the cabinet (3). A transmission wheel is fixed at the output end of the servo motor (11). A transmission roller (13) is fixed at one end of the transmission frame (14) through the cabinet (3). The transmission roller (13) and the transmission wheel are rotatably connected by a meshing belt.

5. A leather cutting mechanism with positioning function according to claim 3, characterized in that, Both ends of the inner side of the base cabinet (3) are rotatably connected to limit rods (17), and both sides of the outer side of the limit rods (17) are rotatably connected to linkage rods (18). The end of the linkage rod (18) away from the limit rods (17) is rotatably connected to the transmission frame (14).

6. A leather cutting mechanism with positioning function according to claim 2, characterized in that, The inner side of the cutting frame (2) is provided with a moving mechanism for cutting leather. The moving mechanism includes a cutting seat (4), a wheel sleeve (6) and an electric slide rail (9). The bottom of the inner side of the cutting frame (2) is fixed with an electric slide rail (9). The top of the electric slide rail (9) is slidably connected to the cutting seat (4). Both ends of the top of the cutting seat (4) are equipped with mounting frames (21). The top of the mounting frame (21) is equipped with a cylinder (10). The output end of the cylinder (10) passes through the cutting seat (4) and the cutting frame (2) and is fixed to the lower pressure plate (7).

7. A leather cutting mechanism with positioning function according to claim 6, characterized in that, The mounting frame (21) is slidably connected to a lower pressure arm (19). A guide rod (5) is rotatably connected to the bottom end of one end of the lower pressure arm (19). The interior of the lower pressure arm (19) is fixed to the output end of the cylinder (10). The bottom end of the outer side of the guide rod (5) is slidably connected to the cutting seat (4). A return spring (20) is sleeved on the outer side of the guide rod (5).

8. A leather cutting mechanism with positioning function according to claim 6, characterized in that, The bottom of the inner side of the cutting frame (2) is provided with a guide groove, and the inner side of the guide groove is slidably connected to the lower pressure plate (7).

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