Plastic film punching device
The plastic film punching device addresses inefficiencies in existing technologies by enabling simultaneous axial punching of multiple holes through an adjustable component, enhancing efficiency and precision, and accommodating different punching demands.
Patent Information
- Application Number
- CN202420256456.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-02-02
AI Technical Summary
The existing plastic film punching technology is inefficient as it requires repeated axial movement of the punching head and radial rotation of the film to create multiple holes, leading to prolonged processing time for films needing numerous punctures.
A plastic film punching device with a adjustable punching component featuring multiple sliding blocks and a guiding mechanism that allows simultaneous axial punching of multiple holes along the film's axis, reducing the need for repeated head movement and enhancing radial punching efficiency.
This solution significantly reduces punching time and increases efficiency by enabling multiple axial holes to be created simultaneously, with adjustable punching head configurations to accommodate varying hole requirements, while maintaining precise head movement and accuracy.
Smart Images
Figure CN222609858U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic film processing, in particular to a plastic film punching device. Background Art
[0002] Plastic films are divided into cling film and packaging film, among which cling film is often perforated on its surface after being processed into a roll. The perforations promote the breathing of food and maintain proper air permeability, reduce moisture in the package, and thus extend the shelf life of food. A punching machine is required for punching. The rolled plastic cling film is put on the air expansion shaft, and the cylinder is started to move the punching head to punch holes in the plastic cling film. The plastic cling film is then driven to rotate by the air expansion shaft to punch holes in multiple positions in the radial direction of the plastic cling film. After the punching of the radial position is completed, the punching head is moved axially to punch holes in another radial position. The above steps are repeated to complete the punching of the plastic cling film.
[0003] When punching holes in the plastic cling film, the axial movement of the punching head and the radial rotation of the plastic cling film are used to punch holes in the plastic cling film. However, there is only one punching head and only one hole can be punched at a time. When a large number of holes need to be punched in the plastic cling film, it will take a long time and the punching efficiency needs to be improved. Utility Model Content
[0004] The utility model provides a plastic film punching device, which has the advantage of improving the punching efficiency and solves the problems raised in the background technology.
[0005] In order to achieve the purpose of improving the punching efficiency, the utility model provides the following technical solution: a plastic film punching device, comprising a body and a cylinder fixed on the body, and also comprising:
[0006] An adjustable punching assembly, wherein a square rod with a groove is arranged on the body, the square rod with a groove is fixed to the telescopic end of the cylinder, the adjustable punching assembly comprises a plurality of sliders slidably connected to the inside of the square rod with a groove, a connecting block is fixed to the side of the slider, a punching head for punching holes in a plastic film is fixed to the side of the connecting block, a pressure strip for fixing the slider is movably connected in the through groove opened at the top of the square rod with a groove, and the pressure strip is detachably connected to the top of the square rod with a groove;
[0007] A guide assembly is arranged at the bottom of the grooved square rod and is used for guiding the grooved square rod when it moves.
[0008] As a preferred technical solution of the utility model, the surface of the slider is provided with an inclined surface for preventing the slider from being separated from the grooved square rod in the left-right direction.
[0009] As a preferred technical solution of the utility model, a blanking groove is provided on the connecting block, and the blanking groove is connected to the punching head.
[0010] As a preferred technical solution of the utility model, the pressure strip includes a square strip movably connected in the through groove at the top of the grooved square rod and a positioning block fixed on the side of the square strip, the square strip is pressed on the sliding block, a screw rod is fixed on the grooved square rod, the positioning block is movably sleeved on the screw rod, a nut is threadedly connected to the surface of the screw rod, and a pressure ring is movably sleeved on the screw rod, the nut is pressed on the pressure ring, and the pressure ring is pressed on the pressure strip and the positioning block.
[0011] As a preferred technical solution of the utility model, a limiting block is fixed on the pressure strip, and the side surface of the limiting block is movably connected to the side surface of the pressure ring.
[0012] As a preferred technical solution of the utility model, the guide assembly includes a guide rail fixed on the machine body and a guide sleeve fixed on the bottom of the grooved square rod, and the guide sleeve is slidably connected to the guide rail.
[0013] As a preferred technical solution of the utility model, the top of the guide rail is a curved surface, and the shape of the guide sleeve is adapted to the shape of the guide rail.
[0014] Compared with the prior art, the utility model provides a plastic film punching device having the following features:
[0015] Beneficial effects:
[0016] 1. The plastic film punching device, through the setting of the adjustable punching assembly, can punch multiple holes in the axial direction of the plastic cling film at the same time by using multiple adjustable punching assemblies installed in the grooved square rod. It only needs to rotate the plastic cling film to achieve the punching of holes at different positions in the radial direction, and there is no need to constantly move the punching head to achieve the punching of holes at different positions in the axial direction of the plastic cling film, which shortens the time spent on punching, thereby improving the punching efficiency, and different numbers of holes can be punched by increasing or decreasing the number of punching heads, thereby meeting different punching requirements.
[0017] 2. The plastic film punching device, through the setting of the guide assembly, the guide rail of the guide assembly cooperates with the guide sleeve to guide the grooved square rod when it moves left and right, so that the movement of the punching head is more stable, thereby improving the punching accuracy of the punching head. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 This is a structural schematic diagram of a grooved square rod of the utility model;
[0020] Figure 3 This is a schematic diagram of the screw structure of the utility model;
[0021] Figure 4 It is a structural schematic diagram of the slider of the utility model.
[0022] In the figure: 1. body; 2. cylinder; 3. guide assembly; 31. guide rail; 32. guide sleeve; 4. adjustable punching assembly; 41. punching head; 42. connecting block; 43. blanking chute; 44. slider; 45. limit block; 46. pressure strip; 461. square bar; 462. positioning block; 47. screw; 48. nut; 49. pressure ring; 5. square rod with groove. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-4 The utility model discloses a plastic film punching device, comprising a body 1 and a cylinder 2 fixed on the body 1, the cylinder 2 is used to drive a grooved square rod 5 to move left and right, and also includes:
[0025] An adjustable punching assembly 4, a grooved square rod 5 is provided on the body 1, the grooved square rod 5 is fixed to the telescopic end of the cylinder 2, the adjustable punching assembly 4 includes a plurality of sliders 44 slidably connected to the inside of the grooved square rod 5, a connecting block 42 is fixed to the side of the slider 44, a punching head 41 for punching holes in the plastic film is fixed to the side of the connecting block 42, the connecting block 42 is used to connect and fix the slider 44 and the punching head 41, the cutting edge of the end of the punching head 41 is aligned with the plastic preservative film sleeved on the air expansion shaft, and a pressure strip 46 for fixing the slider 44 is movably connected in the through groove opened at the top of the grooved square rod 5, and the pressure strip 46 is detachably connected to the top of the grooved square rod 5;
[0026] The guide assembly 3 is arranged at the bottom of the grooved square rod 5 and is used for guiding the grooved square rod 5 when it moves. There are multiple guide assemblies 3 which are evenly distributed at the bottom of the grooved square rod 5.
[0027] Specifically, a slope is provided on the surface of the slider 44 to prevent the slider 44 from being separated from the grooved square rod 5 in the left-right direction.
[0028] In this implementation plan, please refer to Figure 4 The inclined surface prevents the slider 44 from separating from the grooved square rod 5 in the left-right direction, so that the slider 44 can slide back and forth along the inner wall of the grooved square rod 5.
[0029] Specifically, a blanking groove 43 is formed on the connecting block 42 , and the blanking groove 43 is connected to the punching head 41 .
[0030] In this implementation plan, please refer to Figure 4 The waste generated by the punching moves along the inner wall of the punching head 41 to the position of the blanking groove 43 and is discharged from the blanking groove 43, thereby preventing the waste from accumulating inside the punching head 41 and affecting the normal use of the punching head 41.
[0031] Specifically, the pressure strip 46 includes a square strip 461 movably connected in the top through groove of the grooved square rod 5 and a positioning block 462 fixed on the side of the square strip 461, the square strip 461 is pressed on the slider 44, a screw 47 is fixed on the grooved square rod 5, the positioning block 462 is movably sleeved on the screw 47, a nut 48 is threadedly connected on the surface of the screw 47, and a pressure ring 49 is movably sleeved on the screw 47, the nut 48 is pressed on the pressure ring 49, and the pressure ring 49 is pressed on the pressure strip 46 and the positioning block 462.
[0032] In this implementation plan, please refer to Figure 4 , the positioning block 462 is sleeved on the screw 47, the pressure ring 49 is sleeved on the screw 47, and then the nut 48 is tightened on the screw 47, so that the raised position of the pressure ring 49 is pressed on the square bar 461 to fix the pressure strip 46, so that the pressure strip 46 presses down the slider 44 to install and fix the punching head 41.
[0033] Specifically, a limiting block 45 is fixed on the pressure strip 46 , and a side surface of the limiting block 45 is movably connected to a side surface of the pressure ring 49 .
[0034] In this implementation plan, please refer to Figure 2 The raised position of the pressing ring 49 is stuck between the two limit blocks 45 to prevent the pressing ring 49 from rotating with the nut 48.
[0035] Specifically, the guide assembly 3 includes a guide rail 31 fixed on the body 1 and a guide sleeve 32 fixed on the bottom of the grooved square rod 5 , and the guide sleeve 32 is slidably connected to the guide rail 31 .
[0036] In this implementation plan, please refer to Figure 3 When the grooved square rod 5 moves, the guide sleeve 32 is driven to move along the guide rail 31. The guide rail 31 and the guide sleeve 32 guide the movement of the grooved square rod 5, so that the movement of the grooved square rod 5 and the punching head 41 is more stable.
[0037] Specifically, the top of the guide rail 31 is a curved surface, and the shape of the guide sleeve 32 matches the shape of the guide rail 31 .
[0038] In this implementation plan, please refer to Figure 3 , increasing the contact area between the guide sleeve 32 and the guide rail 31, thereby improving the guiding ability of the grooved square rod 5 and the punching head 41.
[0039] The working principle and use process of the utility model are as follows: the plastic cling film is put on the air expansion shaft of the machine body 1, the slider 44 is located in the grooved square rod 5, the pressure strip 46 is fixed by the nut 48 and the pressure ring 49 and then pressed on the slider 44, so that the slider 44 and the punching head 41 are installed and fixed, and the cylinder 2 is started so that the piston rod of the cylinder 2 drives the grooved square rod 5 and the guide sleeve 32 to move to the left along the guide rail 31, and the punching head 41 moves to the left to realize simultaneous punching of multiple positions in the axial direction of the plastic cling film, and then the piston rod of the cylinder 2 is shortened to drive the punching head 41 to move to the right, and after the punching is completed, the plastic cling film is rotated by the air expansion shaft, and then the punching head 41 is driven by the cylinder 2 to move to realize punching of different positions in the radial direction of the plastic cling film, and the waste generated by the punching moves along the inner wall of the punching head 41 to the position of the blanking groove 43 and is discharged from the blanking groove 43;
[0040] Unscrew the nut 48 from the screw rod 47 so that the pressure strip 46 is no longer tightly pressed on the slider 44, then the slider 44 can be moved, and the distance between adjacent punching heads 41 can be adjusted. The number of punching heads 41 can also be increased or decreased to meet different punching requirements. After adjusting to a suitable distance and number, tighten the nut 48 on the screw rod 47 to press the pressure ring 49 on the pressure strip 46, and the pressure strip 46 presses on the slider 44 to achieve simultaneous fixation of multiple sliders 44.
[0041] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.
[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A plastic film punching device, comprising a body (1) and a cylinder (2) fixed to the body (1), characterized in that: Also includes: An adjustable punching assembly (4), wherein a grooved square rod (5) is arranged on the body (1), the grooved square rod (5) is fixed to the telescopic end of the cylinder (2), the adjustable punching assembly (4) comprises a plurality of sliders (44) slidably connected to the inside of the grooved square rod (5), a connecting block (42) is fixed to the side of the slider (44), a punching head (41) for punching holes in a plastic film is fixed to the side of the connecting block (42), a pressure strip (46) for fixing the slider (44) is movably connected in the through groove opened at the top of the grooved square rod (5), and the pressure strip (46) is detachably connected to the top of the grooved square rod (5); A guide assembly (3) is arranged at the bottom of the grooved square rod (5) and is used for guiding the grooved square rod (5) when it moves.
2. A plastic film punching device according to claim 1, characterized in that: The surface of the slider (44) is provided with an inclined surface, which is used to prevent the slider (44) from being separated from the grooved square rod (5) in the left-right direction.
3. A plastic film punching device according to claim 1, characterized in that: The connection block (42) is provided with a material dropping groove (43), and the material dropping groove (43) is connected to the punching head (41).
4. A plastic film punching device according to claim 1, characterized in that: The pressure strip (46) comprises a square strip (461) movably connected to the top through groove of the grooved square rod (5) and a positioning block (462) fixed to the side of the square strip (461); the square strip (461) is pressed on the slider (44); a screw rod (47) is fixed on the grooved square rod (5); the positioning block (462) is movably sleeved on the screw rod (47); a nut (48) is threadedly connected to the surface of the screw rod (47); a pressure ring (49) is movably sleeved on the screw rod (47); the nut (48) is pressed on the pressure ring (49); and the pressure ring (49) is pressed on the pressure strip (46) and the positioning block (462).
5. A plastic film punching device according to claim 4, characterized in that: A limiting block (45) is fixed on the pressure strip (46), and a side surface of the limiting block (45) is movably connected to a side surface of a pressure ring (49).
6. A plastic film punching device according to claim 1, characterized in that: The guide assembly (3) comprises a guide rail (31) fixed on the machine body (1) and a guide sleeve (32) fixed on the bottom of the grooved square rod (5); the guide sleeve (32) is slidably connected to the guide rail (31).
7. A plastic film punching device according to claim 6, characterized in that: The top of the guide rail (31) is a curved surface, and the shape of the guide sleeve (32) is adapted to the shape of the guide rail (31).