Perforating device for thin film processing

Abstract

The utility model relates to the technical field of film processing, in particular to a punching device for film processing, which comprises a mounting frame, a driven roller is rotatably arranged on the mounting frame, a steel needle for punching is arranged on the outer wall of the driven roller, and a driving structure for driving the driven roller to abut against a film is arranged on the mounting frame. The mounting frame is directly mounted between the printing machine and the winding device, so that when the thin film is not wound after being printed, the thin film is directly perforated through the steel needle and then wound after being perforated, and compared with an existing perforating step, the device is more convenient to use.

Description

Technical Field

[0001] This application relates to the field of thin film processing technology, and in particular to a perforation device for thin film processing. Background Technology

[0002] Film products, such as plastic film bags, are widely used in industries such as electronics, machinery, food packaging, pharmaceuticals, and chemicals. Their production typically involves three independent processing modules: blow molding, cooling, and printing. Some film products require specific holes to be made on the film surface after processing, either for decoration or to ensure the breathability of the film product.

[0003] The existing method for perforating films involves transporting the rolled-up film to a dedicated perforation device after printing. Unwinding and rewinding devices are then installed on the front and back sides of the dedicated perforation device, so that the film is perforated during the unwinding process.

[0004] While the above-mentioned perforation method can achieve the operation of perforating the film, in actual use, it is necessary to wait until the film is completely printed and rolled up before transporting it to the perforation equipment for rewinding, unwinding, and perforation. The overall process is cumbersome and the processing efficiency is low, which requires improvement. Utility Model Content

[0005] In order to improve processing efficiency by simultaneously punching holes in the film during the printing process, this application provides a punching device for film processing.

[0006] This application provides a punching device for thin film processing, which adopts the following technical solution:

[0007] A punching device for thin film processing includes a mounting frame, a driven roller rotatably mounted on the mounting frame, steel needles for punching holes disposed on the outer wall of the driven roller, and a driving structure for driving the driven roller to abut against the thin film on the mounting frame.

[0008] By adopting the above technical solution, the mounting frame is fixed at the exit of the printing machine during use, and the driven roller is driven to contact the printed film through the drive structure. Thus, during the transmission process from the completion of film printing to the start of winding, the driven roller is guided to rotate through the film transmission. Then, during the rotation of the driven roller, the film is perforated by steel needles. After perforation, the film is directly wound up. Compared with the existing technology, which involves winding up the film after printing and transporting it to a designated position, and then using a winding and unwinding device in conjunction with a special perforation device to perforate the film, the overall use is more convenient and the processing efficiency is improved.

[0009] Preferably, the mounting bracket is provided with a guide rail, a sliding seat is slidably connected to the guide rail, the sliding seat is provided with a positioning structure for positioning the sliding seat, and the driven roller and the driving structure are both provided on the sliding seat.

[0010] By adopting the above technical solution, the sliding seat and positioning structure work together to facilitate the adjustment of the position of the sliding seat by the operator, thereby ensuring that the steel needle on the driven roller is aligned with the area to be punched on the film.

[0011] Preferably, the positioning structure includes an abutment bolt passing through the sliding seat, one end of which passes through the sliding seat and abuts against the side wall of the guide rail, and the abutment bolt is threadedly connected to the sliding seat.

[0012] By adopting the above technical solution, when the sliding seat moves to the designated position, the abutment bolt can be screwed on so that the end of the abutment bolt abuts against the side wall of the guide rail, thereby limiting the sliding seat.

[0013] Preferably, the drive structure includes a fixed frame slidably disposed on the sliding seat, a connecting block fixedly connected to the fixed frame, and an adjusting bolt threadedly connected to the sliding seat. The fixed frame slides along the width direction of the mounting frame, one end of the adjusting bolt passes through the sliding seat and is rotatably connected to the connecting block, and the driven roller is rotatably connected to the fixed frame.

[0014] By adopting the above technical solution, during use, the connecting block is moved by turning the adjusting bolt, thereby causing the fixed frame to slide, so that the driven roller comes into contact with the film, and thus the perforation operation of the film is realized without affecting the film transmission.

[0015] Preferably, the fixing frame includes a first block slidably connected to the sliding seat and a second block detachably connected to the first block. The first block has a groove for embedding the second block at the end away from the sliding seat, and a mounting hole for mounting the driven roller is formed between the first block and the second block.

[0016] By adopting the above technical solution, the driven roller can be detachably connected through the cooperation of the first and second blocks during use, while also ensuring the stability of the driven roller rotating on the fixed frame.

[0017] Preferably, the mounting frame is provided with a guide plate for guiding the transmission direction of the film.

[0018] By adopting the above technical solution, the guide plate guides the transmission direction of the film during use, so as to cooperate with the rotation of the driven roller for punching operation, thereby ensuring the punching quality of the film.

[0019] Preferably, the driven roller has an insertion hole, the steel needle is inserted into the insertion hole, and the driven roller is provided with a snap-fit ​​structure to prevent the steel needle from dislodging from the insertion hole.

[0020] By adopting the above technical solution, the steel needle can be detached during use through the setting of the insertion hole, and the snap-fit ​​structure ensures the structural stability of the steel needle after installation.

[0021] Preferably, the snap-fit ​​structure includes a snap-fit ​​disc disposed at one end of the driven roller, a positioning pin disposed on the snap-fit ​​disc, and a locking nut threadedly connected to the driven roller. The steel pin has a positioning hole, the positioning pin passes through the driven roller and is inserted into the positioning hole, and the locking nut presses the snap-fit ​​disc against the end face of the driven roller.

[0022] By adopting the above technical solution, when using it, first insert the steel needle into the insertion hole, then pass the retaining plate through it, so that one end of the positioning pin on the retaining plate passes through the driven roller and then into the positioning hole. Finally, tighten the locking nut, and the retaining plate is pressed against the end of the driven roller by the locking nut. The steel needle is limited by the positioning pin, thereby fixing the steel needle. It is simple and convenient to use.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By fixing the mounting bracket at the exit of the printing machine and driving the driven roller to contact the printed film through the drive structure, the driven roller is guided to rotate through the transmission process from the completion of film printing to the start of winding. Then, during the rotation of the driven roller, the film is perforated by steel needles. After the film is perforated, it can be directly wound up. It is simple and convenient to use and has higher processing efficiency.

[0025] 2. The use of the sliding seat and positioning structure makes it easy for the operator to adjust the position of the sliding seat, thereby ensuring that the steel needle on the driven roller is aligned with the area to be punched on the film, and is suitable for punching films of different sizes.

[0026] 3. By using a socket and snap-fit ​​structure, the steel needles are detachable while ensuring connection stability, making it easy for users to replace different models of steel needles. Attached Figure Description

[0027] Figure 1 This is an isometric schematic diagram of the overall structure in use, which is the main feature of Embodiment 1 of this application;

[0028] Figure 2 This is an isometric schematic diagram of the main overall structure in Embodiment 1 of this application;

[0029] Figure 3This is an isometric schematic diagram of the main positioning structure in Embodiment 1 of this application;

[0030] Figure 4 This is an isometric schematic diagram of the sliding seat structure, which is the main feature of Embodiment 1 of this application;

[0031] Figure 5 This is an exploded view of the main driving structure in Embodiment 1 of this application;

[0032] Figure 6 This is an isometric schematic diagram of the driven roller structure, which is the main feature of Embodiment 2 of this application;

[0033] Figure 7 This is an exploded view of the driven roller structure, which is the main feature of Embodiment 2 of this application.

[0034] Reference numerals: 1. Mounting bracket; 2. Driven roller; 21. Insertion hole; 3. Steel needle; 31. Positioning hole; 4. Drive structure; 41. Fixing bracket; 411. First block; 412. Second block; 413. Groove; 414. Mounting hole; 42. Connecting block; 43. Adjusting bolt; 5. Guide rail; 6. Sliding seat; 7. Positioning structure; 71. Abutment bolt; 8. Guide plate; 9. Snap-fit ​​structure; 91. Snap-fit ​​disc; 92. Positioning pin; 93. Locking nut. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1 -Appendix Figure 7 This application will be described in further detail.

[0036] This application discloses a punching device for thin film processing.

[0037] Example 1:

[0038] Reference Figure 1 and Figure 2 A punching device for thin film processing includes a horizontally placed mounting frame 1. A guide rail 5 is fixed to the mounting frame 1 by bolts. The length direction of the guide rail 5 is parallel to the length direction of the mounting frame 1. A sliding seat 6 is slidably connected to the guide rail 5. A positioning structure 7 is provided on the sliding seat 6. In use, the operator manually pushes the sliding seat 6 to slide, thereby changing the position of the sliding seat 6. After adjustment, the positioning structure 7 is used to position the sliding seat 6 to ensure that the adjusted position of the sliding seat 6 is fixed.

[0039] Reference Figure 2 and Figure 3The positioning structure 7 includes an abutment bolt 71, which passes through the sliding seat 6 and is threadedly engaged with the sliding seat 6. One end of the abutment bolt 71 passes through the sliding seat 6 and abuts against the side wall of the guide rail 5. In use, after the sliding seat 6 is adjusted, the operator can tighten the abutment bolt 71. When one end of the abutment bolt 71 is pressed against the side wall of the guide rail 5, the sliding seat 6 is positioned by the friction between the abutment bolt 71 and the guide rail 5.

[0040] Reference Figure 3 and Figure 4 The sliding seat 6 is also provided with a driven roller 2 and a driving structure 4. The driven roller 2 rotates on the sliding seat 6. Steel needles 3 are formed on the outer wall of the driven roller 2. The steel needles 3 are used to punch holes in the film. Several steel needles 3 can be set according to actual needs. In this embodiment, the steel needles 3 are preferably set in three groups. The three groups of steel needles 3 are evenly spaced along the axial direction of the driven roller 2. Each group contains four steel needles. The four steel needles 3 are evenly spaced along the periphery of the driven roller 2. The driving structure 4 is used to drive the driven roller 2 to move until it contacts the film.

[0041] Reference Figure 3 and Figure 4 When in use, after the sliding seat 6 is fixed, the position of the driven roller 2 is adjusted by the drive structure 4. When the driven roller 2 comes into contact with the film, the driven roller 2 can rotate under the transmission action of the film. During the rotation of the driven roller 2, the steel needles 3 are used to punch holes in the film. The whole process is simple and convenient to use. During the punching process, the distance between the several steel needles 3 set on the periphery of the driven roller 2 is the distance between two adjacent holes in the film transmission direction.

[0042] Reference Figure 4 and Figure 5 The drive structure 4 consists of a fixed frame 41, a connecting block 42, and an adjusting bolt 43. The fixed frame 41 is slidably connected to the sliding seat 6 along the width direction of the mounting frame 1. The connecting block 42 is located between the sliding seat 6 and the fixed frame 41, and one end of the connecting block 42 is fixed to the fixed frame 41 by a bolt. The adjusting bolt 43 passes through the sliding seat 6 and is threadedly engaged with the sliding seat 6. One end of the adjusting bolt 43 passes through the sliding seat 6 and is rotatably connected to the end of the connecting block 42 away from the fixed frame 41. The driven roller 2 is rotatably set at the end of the fixed frame 41 away from the sliding seat 6.

[0043] Reference Figure 4 and Figure 5 In use, the operator rotates the adjusting bolt 43 to slide the connecting block 42, thereby causing the fixing frame 41 to slide and change the position of the driven roller 2. Once the driven roller 2 is attached to the side wall of the film, the adjusting bolt 43 can be stopped. At this time, the connecting block 42 is positioned by the cooperation of the adjusting bolt 43 and the sliding seat 6, thus achieving the positioning of the driven roller 2. The overall operation is simple and convenient.

[0044] Reference Figure 4 and Figure 5 The fixing frame 41 is composed of a first block 411 and a second block 412. One end of the first block 411 is slidably connected to the sliding seat 6, and the other end of the first block 411 is provided with a groove 413. The second block 412 is fitted into the groove 413. The second block 412 is fixed to the first block 411 by bolts. After the second block 412 is embedded in the groove 413, the top surface of the second block 412 is flush with the top surface of the first block 411. A mounting hole 414 is formed between the first block 411 and the second block 412. The mounting hole 414 is located in the groove 413. In this embodiment, the mounting hole 414 is a round hole formed by two semi-circular grooves. One semi-circular groove is located on the bottom surface of the second block 412, and the other semi-circular groove is located on the bottom wall of the groove 413.

[0045] Reference Figure 4 and Figure 5 In use, first separate the second block 412, then place the driven roller 2 into the groove 413 until the end of the driven roller 2 is embedded in the semi-circular groove of the bottom wall of the groove 413, then fasten the second block 412 into the groove 413, and limit the driven roller 2 in the mounting hole 414 by the second block 412. Then tighten the bolt to fix the second block 412, thus realizing the detachable connection of the driven roller 2.

[0046] Reference Figure 1 and Figure 2 In addition, a guide plate 8 is provided on the mounting frame 1. The guide plate 8 is used to guide the transmission direction of the film to ensure the cooperation between the film and the driven roller 2. In this embodiment, one end of the guide plate 8 is mounted on the mounting frame 1 by a hinge, and the other end is tilted upward, that is, the guide plate 8 is tilted as a whole. When in use, the tilt angle of the guide plate 8 can be changed by the hinge to ensure the guiding effect on the film. At the same time, when the guide plate 8 is not needed, it can be rotated to a horizontal state for easy storage.

[0047] The implementation principle of this application embodiment is as follows: In use, the mounting frame 1 is first fixed at the exit of the printing machine. Then, the operator moves the sliding seat 6 to adjust the position of the driven roller 2 so that the steel needle 3 is aligned with the area to be punched on the film. Then, the adjusting bolt 43 is turned so that the driven roller 2 comes into contact with the film. When the film is printed and driven, the film drive drives the driven roller 2 to rotate. During the rotation of the driven roller 2, the steel needle 3 is driven to punch holes in the printed film. After the film is punched, it continues to be driven and wound up. The whole process is simple and convenient, and the punching efficiency is more efficient.

[0048] The difference between Example 2 and Example 1 is that:

[0049] Reference Figure 6 and Figure 7 The driven roller 2 has an insertion hole 21 for inserting a steel needle 3. Several insertion holes 21 can be provided. In this embodiment, it is preferred that there are 12 insertion holes 21, that is, they are set one-to-one with the steel needles 3. In actual use, the steel needle 3 can be inserted into at least one insertion hole 21 as needed, thereby improving the applicability of the device. In addition, the driven roller 2 is provided with a snap-fit ​​structure 9, which is used to prevent the steel needle 3 from falling out of the insertion hole 21.

[0050] Reference Figure 6 and Figure 7 The snap-fit ​​structure 9 includes a snap-fit ​​plate 91, a positioning pin 92, and a locking nut 93. The snap-fit ​​plate 91 is disposed at one end of the driven roller 2 and is coaxial with the driven roller 2. One end of the positioning pin 92 is fixed on the snap-fit ​​plate 91, and the other end passes into the driven roller 2. The number of positioning pins 92 is the same as the number of steel needles 3 in a set of steel needles 3. That is, in this embodiment, there are four positioning pins 92, and the four positioning pins 92 are evenly spaced along the periphery of the snap-fit ​​plate 91. The locking nut 93 is sleeved on the driven roller 2 and is threadedly engaged with the end of the driven roller 2. The locking nut 93 abuts against the side of the snap-fit ​​plate 91 away from the positioning pin 92.

[0051] Reference Figure 6 and Figure 7 The steel needle 3 has a positioning hole 31, into which the positioning pin 92 can be inserted. In use, the steel needle 3 is first inserted into the corresponding insertion hole 21 one by one. Then, the retaining plate 91 is connected to the end of the driven roller 2, and the positioning pin 92 passes through the driven roller 2 and into the insertion hole 21. Then, the locking nut 93 is tightened, thereby pressing the retaining plate 91 onto the end of the driven roller 2. Then, the steel needle 3 is fixed on the driven roller 2 by the cooperation of the positioning pin 92 and the positioning hole 31. This achieves the detachable connection of the steel needle 3, which makes it easier for the staff to replace different models of steel needle 3 and set different numbers of steel needle 3, making the overall use more convenient.

[0052] 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. A punching device for thin film processing, characterized in that: The device includes a mounting frame (1), on which a driven roller (2) is rotatably mounted. The outer wall of the driven roller (2) is provided with a steel needle (3) for punching holes. The mounting frame (1) is provided with a drive structure (4) for driving the driven roller (2) to abut against the film.

2. The punching device for thin film processing according to claim 1, characterized in that: The mounting bracket (1) is provided with a guide rail (5), and a sliding seat (6) is slidably connected to the guide rail (5). The sliding seat (6) is provided with a positioning structure (7) for positioning the sliding seat (6). The driven roller (2) and the driving structure (4) are both provided on the sliding seat (6).

3. A punching device for thin film processing according to claim 2, characterized in that: The positioning structure (7) includes an abutment bolt (71) passing through the sliding seat (6). One end of the abutment bolt (71) passes through the sliding seat (6) and abuts against the side wall of the guide rail (5). The abutment bolt (71) is threadedly connected to the sliding seat (6).

4. A punching device for thin film processing according to claim 2, characterized in that: The drive structure (4) includes a fixed frame (41) slidably disposed on the sliding seat (6), a connecting block (42) fixedly connected to the fixed frame (41), and an adjusting bolt (43) threadedly connected to the sliding seat (6). The fixed frame (41) slides along the width direction of the mounting frame (1). One end of the adjusting bolt (43) passes through the sliding seat (6) and is rotatably connected to the connecting block (42). The driven roller (2) is rotatably connected to the fixed frame (41).

5. A punching device for thin film processing according to claim 4, characterized in that: The fixing frame (41) includes a first block (411) slidably connected to the sliding seat (6) and a second block (412) detachably connected to the first block (411). The first block (411) has a groove (413) for embedding the second block (412) at the end away from the sliding seat (6). A mounting hole (414) for mounting the driven roller (2) is formed between the first block (411) and the second block (412).

6. A punching device for thin film processing according to claim 1, characterized in that: The mounting frame (1) is provided with a guide plate (8) for guiding the transmission direction of the film.

7. A punching device for thin film processing according to claim 1, characterized in that: The driven roller (2) has an insertion hole (21) and the steel needle (3) is inserted into the insertion hole (21). The driven roller (2) is provided with a snap-fit ​​structure (9) to prevent the steel needle (3) from dislodging from the insertion hole (21).

8. A punching device for thin film processing according to claim 7, characterized in that: The snap-fit ​​structure (9) includes a snap-fit ​​disc (91) disposed at one end of the driven roller (2), a positioning pin (92) disposed on the snap-fit ​​disc (91), and a locking nut (93) threadedly connected to the driven roller (2). The steel needle (3) has a positioning hole (31). The positioning pin (92) passes through the driven roller (2) and is inserted into the positioning hole (31). The locking nut (93) presses the snap-fit ​​disc (91) against the end face of the driven roller (2).

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