Fixed-length slitting mechanism for automobile TPU waist support film slitting machine

Abstract

The utility model discloses a fixed-length slitting mechanism for an automobile TPU (thermoplastic polyurethane) waist support film slitting machine, which comprises a base, a support seat arranged on the rear side of the upper end of the base, two brackets arranged on one side of the base, a winding drum rotationally mounted between the brackets, and a transmission cavity, the transmission cavities are formed in the upper end of the interior of the base and the lower end of the interior of the supporting seat, threaded rods are rotationally arranged in the transmission cavities correspondingly, one side of the exterior of each threaded rod is in threaded connection with a moving block, and the infrared generator is installed at the upper end of one moving block. According to the fixed-length slitting mechanism for the automobile TPU waist support film slitting machine, the slitting accuracy of each time can be ensured, errors caused by manual measurement and marking are avoided, automatic fixed-length slitting is achieved, an operator can rapidly shorten or prolong the slitting length through simple operation, the production efficiency and flexibility are greatly improved, and the production cost is reduced. And different production requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile TPU lumbar support film production, in particular to a fixed-length slitting mechanism for an automobile TPU lumbar support film slitting machine. Background Art

[0002] The automotive TPU lumbar support film slitting machine is a key equipment in the field of automotive interior material processing. It is specially used to cut wide TPU films into specific sizes and shapes suitable for use in automotive seat lumbar supports. The machine integrates a high-precision cutting system, an automated control system, and a stable mechanical structure, and can complete the material slitting operation efficiently and continuously. In the production process of automotive TPU lumbar support film, in order to ensure that each piece of lumbar support film meets the size requirements, the automotive TPU lumbar support film slitting machine will use a fixed-length slitting mechanism for cutting operations.

[0003] The existing Chinese patent with announcement number CN221136012U discloses a fixed-length cutting device for a TPU slitting machine, including a cutting table, a through groove is opened in the middle of the cutting table, a track groove is opened at the bottom of the cutting table, the outer side of the cutting table is fixedly connected to a servo motor, and support plates are fixedly connected to both sides of the upper surface of the cutting table. The support plates are connected to pressure rollers through a drive motor. The output end of the servo motor is connected to a slider through a threaded rod, one end of the slider is fixedly connected to an electric push rod, the output end of the electric push rod is connected to the cutting motor through a mounting plate, and the output end of the cutting motor is fixedly connected to a cutting wheel.

[0004] Although the above scheme effectively realizes the pressing and limiting of the TPU film during the cutting process, avoiding the position deviation of the TPU film during the cutting process, the device cannot achieve fixed-length slitting when slitting the automotive TPU lumbar support film. As a result, the operator needs to measure or mark the length of the next section of automotive TPU lumbar support film to be cut during slitting to ensure that each cut can meet the preset length requirements. Such operation not only increases labor costs and labor intensity, but also reduces overall production efficiency. Therefore, it does not meet existing needs. In this regard, we propose a fixed-length slitting mechanism for an automotive TPU lumbar support film slitting machine. Utility Model Content

[0005] The purpose of the utility model is to provide a fixed-length slitting mechanism for an automotive TPU lumbar support film slitting machine, so as to solve the problem in the above-mentioned background technology that the fixed-length slitting mechanism requires length measurement during slitting, which affects production efficiency.

[0006] To achieve the above object, the present invention provides the following technical solution: a fixed-length slitting mechanism for an automotive TPU lumbar support film slitting machine, comprising a base, a support seat being provided on the rear side of the upper end of the base, two brackets being provided on one side of the base, and a winding drum being rotatably mounted between the brackets;

[0007] It also includes a transmission cavity, which is opened at the upper end of the base and the lower end of the support seat, the transmission cavity is rotatably provided with a threaded rod, and one side of the outer side of the threaded rod is threadedly connected to a moving block;

[0008] It also includes an infrared generator, which is installed on the upper end of one of the moving blocks, and an infrared receiver is installed on the lower end of the other moving block;

[0009] It also includes a transparent protective plate, which is installed on one side of the front side of the upper end of the base.

[0010] Preferably, a PLC controller is installed on one side of the front end of the base, and the input end of the PLC controller is electrically connected to the output end of the infrared receiver.

[0011] Preferably, two electric telescopic rods are provided on one side of the support seat, and the input end of the electric telescopic rod is electrically connected to the output end of the PLC controller, and the output end of the electric telescopic rod is installed with a slitting knife. A groove is provided on one side of the upper end of the base, and the groove is located directly below the slitting knife, and the groove is adapted to the slitting knife.

[0012] Preferably, two pressure rollers are rotatably provided on one side of the upper end of the base, and a first motor is provided behind each of the pressure rollers. The output ends of the first motors are connected to the pressure rollers through a coupling, and the input ends of the first motors are electrically connected to the output ends of the PLC controller.

[0013] Preferably, a second motor is provided on one side of the transmission cavity, and the output end of the second motor is connected to the threaded rod through a coupling.

[0014] Preferably, guide rods are welded inside the transmission cavity, the guide rods pass through the moving block, and the guide rods are in sliding cooperation with the moving block.

[0015] Preferably, a scale mark is provided on the front end of the support seat.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model is provided with an infrared generator in a transmission cavity at the upper end of the base, and an infrared receiver in a transmission cavity at the lower end of the support seat. When the automobile TPU lumbar support film is cut, a first motor is started, so that a pressure roller drives the automobile TPU lumbar support film to move. When the automobile TPU lumbar support film moves above the infrared generator, it blocks the infrared rays emitted by the infrared receiver. The infrared receiver generates an unreceived signal to a PLC controller. After processing, the PLC controller stops the rotation of the first motor, so that the automobile TPU lumbar support film does not move. At the same time, the electric telescopic rod is started to make the slitting knife cut the automobile TPU lumbar support film, thereby ensuring the accuracy of each cutting, avoiding errors caused by manual measurement and marking, and realizing automatic fixed-length cutting. The present invention is characterized in that threaded rods are arranged to rotate inside the transmission cavity. When the second motor is started, the threaded rods drive the moving blocks to move synchronously through the coupling, and the two moving blocks drive the positions of the infrared generator and the infrared receiver to move synchronously. The operator can intuitively adjust the positions of the infrared generator and the infrared receiver by observing the scale marks, so that the fixed-length slitting distance can be quickly changed. Whether the slitting length needs to be shortened or extended, the operator can quickly achieve it through simple operations, greatly improving production efficiency and flexibility, and meeting different production needs. The present invention is characterized in that a transparent protective plate is arranged on one side of the front side of the upper end of the base. When the electric telescopic rod drives the slitting knife to move down for slitting, the transparent protective plate will protect the slitting point, which can prevent the operator's fingers or other body parts from accidentally contacting the slitting knife during operation, thereby improving the safety of operation. The transparent characteristics of the transparent protective plate enable the operator to clearly observe the slitting process, ensuring the accuracy and timeliness of the cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic top view of the overall structure of the utility model;

[0020] Figure 3 This is a front view schematic diagram of the internal structure of the utility model;

[0021] Figure 4 For the utility model Figure 3 A partial enlarged view of area A in the middle.

[0022] In the figure: 1. Base; 2. Support base; 3. PLC controller; 4. Bracket; 5. Winding drum; 6. First motor; 7. Pressure roller; 8. Electric telescopic rod; 9. Slitting knife; 10. Groove; 11. Transmission cavity; 12. Threaded rod; 13. Guide rod; 14. Second motor; 15. Moving block; 16. Infrared generator; 17. Infrared receiver; 18. Transparent protective plate; 19. Scale mark. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-4 The utility model provides a technical solution: a fixed-length slitting mechanism for a TPU lumbar support film slitting machine for automobiles, comprising a base 1, a support base 2 being provided on the rear side of the upper end of the base 1, two brackets 4 being provided on one side of the base 1, and a winding drum 5 being rotatably installed between the brackets 4;

[0025] It also includes a transmission cavity 11, which is opened at the upper end of the base 1 and the lower end of the support base 2. A threaded rod 12 is rotatably provided inside the transmission cavity 11, and a moving block 15 is threadedly connected to one side of the outer side of the threaded rod 12.

[0026] It also includes an infrared generator 16, which is installed on the upper end of one of the moving blocks 15, and an infrared receiver 17 is installed on the lower end of the other moving block 15;

[0027] It also includes a transparent protective plate 18 which is installed on one side of the front side of the upper end of the base 1 .

[0028] During use, the automotive TPU lumbar support film is wound on the winding drum 5 and transported under the pressure roller 7. The first motor 6 is started to drive the pressure roller to rotate, driving the film material to move. The infrared generator 16 is paired with the infrared receiver 17. When the film material moves to block the infrared light, the receiver sends a signal to the PLC controller 3. The PLC controller 3 stops the first motor 6 and starts the electric telescopic rod 8 to drive the slitting knife 9 to descend and cut the film material. When adjusting the slitting length, the second motor 14 drives the threaded rod 12 to rotate, guided by the guide rod 13, and the moving block 15 moves horizontally synchronously, driving the infrared generator 16 and the infrared receiver 17 to shift synchronously. The scale mark 19 intuitively indicates the adjustment distance, realizing rapid fixed-length slitting adjustment to meet diversified production needs.

[0029] See also Figure 1 and Figure 2 A PLC controller 3 is installed on one side of the front end of the base 1, and the input end of the PLC controller 3 is electrically connected to the output end of the infrared receiver 17. When the infrared light is blocked, the PLC controller 3 can immediately respond and control subsequent actions, thereby improving the response speed and automation level of the equipment.

[0030] See also Figure 1 、 Figure 2 and Figure 3 , two electric telescopic rods 8 are provided on one side of the support base 2, and the input end of the electric telescopic rod 8 is electrically connected to the output end of the PLC controller 3, and a slitting knife 9 is installed at the output end of the electric telescopic rod 8. A groove 10 is provided on one side of the upper end of the base 1. The groove 10 is located directly below the slitting knife 9, and the groove 10 is adapted to the slitting knife 9. The PLC controller 3 can accurately control the extension and contraction of the electric telescopic rod 8, so that the slitting knife 9 is accurately moved down into the groove 10 to cut the film material. The design of the groove 10 ensures the stability and accuracy of the slitting process;

[0031] See also Figure 1 、 Figure 2 and Figure 3 Two pressing rollers 7 are rotatably provided on one side of the upper end of the base 1. A first motor 6 is provided behind each pressing roller 7. The output ends of the first motors 6 are connected to the pressing rollers 7 through a coupling. The input ends of the first motors 6 are electrically connected to the output ends of the PLC controller 3. The PLC controller 3 can accurately control the start and stop and speed of the first motors 6, thereby adjusting the rotation speed and direction of the pressing rollers 7, achieving stable transportation and precise positioning of the automotive TPU lumbar support film, and providing a strong guarantee for subsequent precise slitting.

[0032] See also Figure 4 A second motor 14 is provided on one side of the transmission cavity 11, and the output end of the second motor 14 is connected to the threaded rod 12 through a coupling. The threaded rod 12 is driven to rotate by the second motor 14, and the positions of the infrared generator 16 and the infrared receiver 17 can be easily adjusted without manual adjustment, thereby improving the flexibility and adjustment accuracy of the equipment;

[0033] See also Figure 3 and Figure 4 The transmission cavity 11 is internally welded with guide rods 13, which penetrate the moving block 15 and slide with the moving block 15. The guide rods 13 provide a stable guide and limit function for the movement of the moving block 15, preventing the moving block 15 from deflecting and shaking during movement, and ensuring the precise adjustment of the positions of the infrared generator 16 and the infrared receiver 17.

[0034] See also Figure 1A scale mark 19 is provided at the front end of the support base 2. The scale mark 19 provides an intuitive reference for the operator, so that when adjusting the position of the infrared generator 16 and the infrared receiver 17, they can be quickly and accurately positioned to the required position, thereby improving the usability and production efficiency of the equipment.

[0035] Working principle: When in use, the automotive TPU lumbar support film is rolled up on the winding drum 5, so that one end of the automotive TPU lumbar support film passes under the two pressure rollers 7. After starting the first motor 6, the pressure roller 7 is rotated through the coupling, so that the automotive TPU lumbar support film can be moved, and the infrared generator 16 is started. The infrared rays generated by the infrared generator 16 will be received by the infrared receiver 17 above. As the automotive TPU lumbar support film moves, the automotive TPU lumbar support film will block the infrared rays generated by the infrared generator 16, which will cause the infrared receiver 17 to be unable to receive the infrared rays, causing the infrared receiver 17 to generate an unreceived signal. The infrared receiver 17 will send the signal to the PLC controller 3. After processing, the PLC controller 3 will first stop the first motor 6 to prevent the automotive TPU lumbar support film from moving, and then start the electric telescopic rod 8 to move the slitting knife 9 downward. After the slitting knife 9 moves into the groove 10 The automotive TPU lumbar support film can be cut to ensure the accuracy of each cut, avoid the errors caused by manual measurement and marking, and realize automatic fixed-length cutting. During cutting, the operator can observe through the transparent protective plate 18. When the length of the automotive TPU lumbar support film needs to be adjusted, the second motor 14 is started, and the second motor 14 will rotate the threaded rod 12 through the coupling. The threaded rod 12 will drive the moving block 15 to rotate synchronously. Since the moving blocks 15 are slidably matched with the guide rod 13, the moving blocks 15 will be axially limited, and the rotation of the moving blocks 15 will be converted into horizontal linear movement. The upper and lower moving blocks 15 will move synchronously, so that the infrared generator 16 and the infrared receiver 17 can achieve synchronous position movement. The setting of the scale mark 19 makes it easy for the operator to intuitively know the cutting length, so that the fixed-length cutting distance can be quickly changed to meet different production needs.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A fixed-length slitting mechanism for a TPU lumbar support film slitting machine for automobiles, comprising a base (1), a support seat (2) being provided on the rear side of the upper end of the base (1), two brackets (4) being provided on one side of the base (1), a winding drum (5) being rotatably mounted between the brackets (4), and characterized in that: It also includes a transmission cavity (11) which is opened at the upper end of the base (1) and the lower end of the support seat (2), a threaded rod (12) is rotatably provided inside the transmission cavity (11), and a moving block (15) is threadedly connected to one side of the outside of the threaded rod (12); It also includes an infrared generator (16) installed on the upper end of one of the moving blocks (15), and an infrared receiver (17) installed on the lower end of the other moving block (15); It also includes a transparent protective plate (18) which is mounted on one side of the front side of the upper end of the base (1).

2. The fixed-length slitting mechanism for a TPU lumbar support film slitting machine for automobiles according to claim 1, characterized in that: A PLC controller (3) is installed on one side of the front end of the base (1), and the input end of the PLC controller (3) is electrically connected to the output end of the infrared receiver (17).

3. The fixed-length slitting mechanism for a TPU lumbar support film slitting machine for automobiles according to claim 2, characterized in that: Two electric telescopic rods (8) are provided on one side of the support seat (2), and the input end of the electric telescopic rod (8) is electrically connected to the output end of the PLC controller (3), and a slitting knife (9) is installed on the output end of the electric telescopic rod (8). A groove (10) is provided on one side of the upper end of the base (1), and the groove (10) is located directly below the slitting knife (9), and the groove (10) is adapted to the slitting knife (9).

4. The fixed-length slitting mechanism for a TPU lumbar support film slitting machine for automobiles according to claim 2, characterized in that: Two pressure rollers (7) are rotatably provided on one side of the upper end of the base (1), and a first motor (6) is provided behind each of the pressure rollers (7). The output end of each of the first motors (6) is connected to the pressure rollers (7) via a coupling, and the input end of each of the first motors (6) is electrically connected to the output end of the PLC controller (3).

5. The fixed-length slitting mechanism for a TPU lumbar support film slitting machine for automobiles according to claim 1, characterized in that: A second motor (14) is provided on one side of the transmission cavity (11), and the output end of the second motor (14) is connected to the threaded rod (12) via a coupling.

6. The fixed-length slitting mechanism for a TPU lumbar support film slitting machine for automobiles according to claim 1, characterized in that: Guide rods (13) are welded inside the transmission cavity (11), and the guide rods (13) pass through the moving block (15), and the guide rods (13) are in sliding engagement with the moving block (15).

7. The fixed-length slitting mechanism for a TPU lumbar support film slitting machine for automobiles according to claim 1, characterized in that: A scale mark (19) is provided at the front end of the support seat (2).

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