Plastic bag hole cutting equipment

Abstract

The invention provides plastic bag hole cutting equipment which comprises a workbench, a movable feeding mechanism, a hole cutting mechanism and a supporting piece, the movable feeding mechanism comprises two reciprocating driving modules and two clamping assemblies, the two reciprocating driving modules are symmetrically arranged on the workbench, and the two clamping assemblies are symmetrically arranged on the workbench; the two clamping assemblies are connected with the sliding blocks of the corresponding reciprocating driving modules correspondingly. The hole cutting mechanism comprises a portal frame, a hydraulic telescopic rod, a frame body, a hole cutting assembly and two flattening assemblies, and the portal frame is connected with the workbench; the hydraulic telescopic rod is mounted on the portal frame; the frame body is connected with one end of the hydraulic telescopic rod; the hole cutting assembly is arranged in the frame body; the two flattening assemblies are symmetrically arranged on the two sides of the frame body. According to the plastic bag hole cutting equipment, the plastic bag can be pulled, flattened and fixed in multiple modes, so that wrinkles on the surface of the plastic bag are avoided, the hole cutting quality is guaranteed, excess materials can be collected through the supporting piece, and the purpose of saving manpower is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of plastic bag processing, and in particular to a plastic bag hole cutting device. Background Art

[0002] Plastic bags are widely used as a packaging material due to their low cost, light weight and convenience. Plastic bag perforation technology not only enhances the air permeability of plastic bags, but also makes plastic bags more durable in specific usage scenarios, because air permeability can prolong the time for moisture left inside the package to evaporate, making perforated plastic bags more suitable for packaging materials such as fresh food, fruits and vegetables, and dry goods. It can also allow the air in the plastic bag to be quickly discharged, further facilitating the use of plastic bags.

[0003] In the related art, in the hole cutting process of plastic bags, mechanical equipment (e.g., plastic bag punching machine) is generally used to process the ventilation holes. Specifically, during the conveying process of the plastic bag, a fixing plate is used to press and fix it in a direction perpendicular to the ground, and the cutter impacts the surface of the plastic bag to form a punching effect. However, when the cutter impacts the surface of the plastic bag, the hole cutting position is subjected to a large force, and the surface of the plastic bag is pulled and wrinkled, thereby affecting the quality of the hole cutting. In addition, the residual material after the hole cutting falls randomly, and workers need to collect and clean it regularly, thereby increasing the workload of the workers. Summary of the invention

[0004] The present application aims to solve one of the technical problems in the above-mentioned technology at least to some extent.

[0005] To this end, one purpose of the present application is to propose a plastic bag cutting device that can pull, flatten and fix plastic bags in a variety of ways, thereby avoiding wrinkles on the surface of the plastic bags and ensuring the quality of the cut holes. The support member can collect the residual material, thereby achieving the purpose of saving manpower.

[0006] To achieve the above-mentioned purpose, the first aspect of the present application proposes a plastic bag hole cutting device, comprising: a workbench, a mobile feeding mechanism, a hole cutting mechanism and a support member, wherein the mobile feeding mechanism comprises two reciprocating drive modules and two clamping assemblies, wherein the two reciprocating drive modules are symmetrically arranged on the workbench, and the two clamping assemblies are respectively connected to the sliders of the corresponding reciprocating drive modules; the hole cutting mechanism comprises a gantry, a hydraulic telescopic rod, a frame, a hole cutting assembly and two flattening assemblies, wherein the gantry is connected to the workbench; the hydraulic telescopic rod is installed on the gantry; the frame is connected to one end of the hydraulic telescopic rod; the hole cutting assembly is arranged inside the frame; the two flattening assemblies are symmetrically arranged on both sides of the frame; the support member is arranged on the workbench in an arched structure, a plane and two inclined surfaces are provided on the support member, a through hole is opened on the plane, the through hole is arranged opposite to the hole cutting assembly, and the inclined surface is arranged opposite to the flattening assembly.

[0007] In addition, the plastic bag cutting device proposed in the above embodiment of the present application may also have the following additional technical features:

[0008] In one embodiment of the present application, the hole cutting assembly includes a first cylinder, a guide plate, a tubular cutter and a pusher, wherein the first cylinder is installed inside the frame; the guide plate is connected to the telescopic end of the first cylinder, and the guide plate is slidably connected to the frame; the tubular cutter is arranged on the guide plate, and a pointed end is provided on the tubular cutter; and the pusher is arranged on the tubular cutter.

[0009] In one embodiment of the present application, the pusher includes a limit rod, a spring and a top block, wherein two through grooves are opened on the outer wall of the tubular cutter, and the limit rod is slidably connected inside the two through grooves; the spring is arranged between the limit rod and the inner top wall of the tubular cutter; the top block is arranged on the limit rod, and the top block is located inside the tubular cutter.

[0010] In one embodiment of the present application, the flattening assembly includes a first plate body, a roller group and an elastic telescopic rod, wherein the first plate body is pivotally connected to the frame body; a groove is provided on the first plate body, and a roller group is installed inside the groove; and both ends of the elastic telescopic rod are pivotally connected to the frame body and the first plate body respectively.

[0011] In one embodiment of the present application, the clamping assembly includes a second plate body, a driving device, a carrier, a boss, a second cylinder and a clamp, wherein the second plate body is connected to the slider of the reciprocating driving module; a groove body is opened on the second plate body, the driving device is arranged on the second plate body, and the driving device passes through the interior of the groove body; the carrier is slidably arranged on the second plate body, and the carrier is connected to the driving device; the boss is integrally formed and arranged on the carrier; the second cylinder is installed on the carrier, and the clamp is connected to the telescopic rod of the second cylinder.

[0012] In one embodiment of the present application, it also includes an adjustment component, which includes two movable grooves, two bidirectional screws and a driving component, wherein the two movable grooves are symmetrically arranged on the workbench; the two bidirectional screws are rotatably arranged inside the corresponding movable grooves, and the support legs of the reciprocating drive module are threadedly connected with the bidirectional screws; the driving component is installed on the workbench, and the driving component is connected to the bidirectional screws.

[0013] In one embodiment of the present application, the bottom of the frame is arranged in an open structure, and two flanges are symmetrically arranged on the bottom of the frame.

[0014] Compared with the prior art, the present application has the following beneficial effects: the plastic bag cutting device of the embodiment of the present application can pull the edge of the plastic bag through the clamping component, and the flattening component can place the plastic bag on the inclined surfaces on both sides of the support. The intersection of the inclined surface and the plane of the support can block the wrinkles on the surface of the plastic bag, so that the plastic bag placed on the plane of the support will not have wrinkles, thereby ensuring the cutting quality of the plastic bag. When the hole cutting component is detached from the support, the residual material can be unloaded, so that the support can collect the residual material, ultimately achieving the purpose of saving manpower.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a plastic bag hole cutting device according to an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the structure of a hole cutting mechanism of a plastic bag hole cutting device according to an embodiment of the present application;

[0019] Figure 3This is a schematic diagram of the structure of a support member of a plastic bag hole cutting device according to an embodiment of the present application;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of a hole cutting assembly of a plastic bag hole cutting device according to one embodiment of the present application;

[0021] Figure 5 It is a front view structural schematic diagram of a hole cutting assembly of a plastic bag hole cutting device according to one embodiment of the present application;

[0022] Figure 6 This is a schematic diagram of the flattening component structure of a plastic bag cutting device according to an embodiment of the present application;

[0023] Figure 7 This is a structural schematic diagram of a mobile feeding mechanism of a plastic bag hole cutting device according to an embodiment of the present application;

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of a plastic bag hole cutting device according to another embodiment of the present application;

[0025] Fig. 9 for Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0026] Figure numerals: 1, workbench; 2, mobile feeding mechanism; 21, reciprocating drive module; 22, clamping assembly; 221, second plate; 222, trough; 223, driving device; 224, carrier; 225, boss; 226, second cylinder; 227, clamping plate; 3, hole cutting mechanism; 31, gantry; 32, hydraulic telescopic rod; 33, frame; 34, hole cutting assembly; 341, first cylinder; 342, guide plate; 343, tubular Cutter; 344, tip; 345, through slot; 346, pusher; 3461, limit rod; 3462, spring; 3463, top block; 35, flattening assembly; 351, first plate; 352, groove; 353, roller group; 354, elastic telescopic rod; 4, support member; 41, inclined plane; 42, plane; 43, through hole; 5, adjustment assembly; 51, movable slot; 52, bidirectional screw; 53, driving component; 61, flange. DETAILED DESCRIPTION

[0027] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0028] The following describes a plastic bag cutting device according to an embodiment of the present application with reference to the accompanying drawings.

[0029] like Figure 1-Figure 9 As shown, the plastic bag cutting device of the embodiment of the present application may include: a workbench 1, a mobile feeding mechanism 2, a cutting mechanism 3 and a support member 4.

[0030] Among them, the mobile feeding mechanism 2 includes two reciprocating drive modules 21 and two clamping assemblies 22, wherein the two reciprocating drive modules 21 are symmetrically arranged on the workbench 1, and the reciprocating drive module 21 is used to drive the clamping assembly 22 and the plastic bag to be cut into holes to move, and the two clamping assemblies 22 are respectively connected to the sliders of the corresponding reciprocating drive modules 21, and the clamping assembly 22 is used to clamp the edges of the plastic bag to be cut into holes.

[0031] It should be noted that the specific structure of the reciprocating drive module 21 described in this embodiment has been disclosed in the prior art, so it will not be described in detail here.

[0032] The hole cutting mechanism 3 comprises a gantry 31 , a hydraulic telescopic rod 32 , a frame 33 , a hole cutting assembly 34 and two flattening assemblies 35 .

[0033] Among them, the gantry 31 is connected to the workbench 1, the hydraulic telescopic rod 32 is installed on the gantry 31, the frame 33 is connected to one end of the hydraulic telescopic rod 32, the hydraulic telescopic rod 32 is used to drive the frame 33, the hole cutting component 34 and the flattening component 35 to move up and down, the hole cutting component 34 is arranged inside the frame 33, and the two flattening components 35 are symmetrically arranged on both sides of the frame 33.

[0034] The support member 4 is arranged on the workbench 1 in an arched structure. A plane 42 and two inclined surfaces 41 are provided on the support member 4. A through hole 43 is opened on the plane 42. The through hole 43 is arranged opposite to the hole cutting component 34. The inclined surface 41 is arranged opposite to the flattening component 35.

[0035] It can be understood that, based on the principle of an arch bridge, providing the support member 4 with an arch structure can increase its stability during use.

[0036] Specifically, when the relevant technicians use the device to cut holes on the surface of a plastic bag, first, the device is arranged at one end of an external conveying device, and the external conveying device transfers the plastic bag to be cut to the device. The plastic bag to be cut can be a plurality of plastic bags stacked together.

[0037] Initially, the clamping assembly 22 is placed at one end of the reciprocating drive module 21, and an external conveying device places the plastic bag to be cut between the two clamping assemblies 22, and the two clamping assemblies 22 clamp and fix the edges of the plastic bag to be cut.

[0038] It should be noted that the distance between the two reciprocating drive modules 21 described in this embodiment is smaller than the width of the plastic bag to be cut, so that the plastic bag presents an arc-shaped state with high edges on both sides and a low middle when being conveyed on this equipment, and the lowest point in the middle of the plastic bag is higher than the height of the support 4.

[0039] Under the action of the reciprocating drive module 21, the clamping assembly 22 and the plastic bag to be cut with a hole move together. When the plastic bag to be cut with a hole moves to the top of the support 4 (this working condition can be obtained by the infrared sensor), the hydraulic telescopic rod 32 starts to move, and the hydraulic telescopic rod 32 pushes the frame 33, the hole cutting assembly 34 and the flattening assembly 35 downward.

[0040] The flattening component 35 first contacts the plastic bag to be cut with a hole, pushes the plastic bag to be cut with a hole downward, and contacts the support 4. The flattening component 35 flattens the plastic bag to be cut with a hole toward its two side edges along the direction of the inclined surface 41 until the frame 33 contacts the surface of the plastic bag to be cut with a hole.

[0041] The hole cutting component 34 processes the plastic bag and applies a vertical downward force to the plastic bag. During the process, the clamping component 22 pulls the edges of both sides of the plastic bag, and the flattening component 35 flattens and presses the plastic bag. In addition, the intersection of the inclined surface 41 and the plane 42 of the support member 4 can block the wrinkles on the surface of the plastic bag, so that the plastic bag placed on the plane 42 will not wrinkle when cutting a hole, thereby ensuring the hole cutting quality of the plastic bag.

[0042] The hole cutting assembly 34 penetrates the plastic bag and the through hole 43, and the remaining material of the plastic bag is scattered inside the supporting member 4, thereby preventing the remaining material from falling randomly, thereby ultimately achieving the purpose of saving manpower.

[0043] In one embodiment of the present application, Figure 4 As shown, the hole cutting assembly 34 includes a first cylinder 341 , a guide plate 342 , a tubular cutter 343 and a pusher 346 .

[0044] Among them, the first cylinder 341 is installed inside the frame 33, the guide plate 342 is connected to the telescopic end of the first cylinder 341, the guide plate 342 is slidably connected to the frame 33, the tubular cutter 343 is arranged on the guide plate 342, the tubular cutter 343 is provided with a tip 344, and the pusher 346 is arranged on the tubular cutter 343.

[0045] It should be noted that the outer diameter of the tubular cutter 343 described in this embodiment is slightly smaller than the inner diameter of the through hole 43 , and the tubular cutter 343 can pass through the inside of the through hole 43 .

[0046] It is understandable that providing the tip 344 can reduce the contact area between the tubular cutter 343 and the plastic bag, thereby increasing the pressure between the two when cutting a hole, increasing the force between the two, and thus quickly completing the hole cutting step.

[0047] In addition, the provision of the tip 344 can reduce the contact between the tubular cutter 343 and the remaining material of the plastic bag. After the hole cutting is completed, the remaining material generated by the hole cutting of the plastic bag can automatically separate from the tubular cutter 343, thereby preventing the remaining material from moving with the tubular cutter 343 and affecting the normal progress of the hole cutting process.

[0048] In one embodiment of the present application, Figure 5 As shown, the pusher 346 includes a limiting rod 3461 , a spring 3462 and a top block 3463 .

[0049] Among them, two through grooves 345 are opened on the outer wall of the tubular cutter 343, the limiting rod 3461 is slidably connected inside the two through grooves 345, the spring 3462 is arranged between the limiting rod 3461 and the inner top wall of the tubular cutter 343, the top block 3463 is arranged on the limiting rod 3461, and the top block 3463 is located inside the tubular cutter 343.

[0050] Specifically, after the frame 33 contacts the surface of the plastic bag, the hole cutting assembly 34 starts to operate, the first cylinder 341 pushes the guide plate 342 to move, and the guide plate 342 pushes the tubular cutter 343 to impact the surface of the plastic bag, thereby cutting a hole in the plastic bag.

[0051] If the residual material generated during the hole cutting process cannot escape from the tubular cutter 343 on its own, the residual material enters the interior of the tubular cutter 343 during the hole cutting process, and the residual material pushes the top block 3463 to move. After the hole cutting is completed, due to the elastic potential energy of the spring 3462, the spring 3462 pushes the top block 3463 to move, and the top block 3463 pushes the residual material in the tubular cutter 343 out.

[0052] In one embodiment of the present application, Figure 1 and Figure 6 As shown, the flattening assembly 35 includes a first plate 351 , a roller set 353 and an elastic telescopic rod 354 .

[0053] The first plate 351 is pivotally connected to the frame 33 , a groove 352 is formed on the first plate 351 , a roller set 353 is installed inside the groove 352 , and both ends of the elastic telescopic rod 354 are pivotally connected to the frame 33 and the first plate 351 respectively.

[0054] It should be noted that the roller group 353 described in this embodiment includes a plurality of rollers. Under the action of the elastic telescopic rod 354, the roller group 353 can contact the plastic bag.

[0055] In one embodiment of the present application, Figure 1 and Figure 7 As shown, the clamping assembly 22 includes a second plate body 221 , a driving device 223 , a carrier 224 , a boss 225 , a second cylinder 226 and a clamping plate 227 .

[0056] Among them, the second plate body 221 is connected to the slider of the reciprocating drive module 21, a groove body 222 is opened on the second plate body 221, a driving device 223 is arranged on the second plate body 221, the driving device 223 passes through the interior of the groove body 222, a carrier 224 is slidably arranged on the second plate body 221, the carrier 224 is connected to the driving device 223, the boss 225 is integrally formed and arranged on the carrier 224, the second cylinder 226 is installed on the carrier 224, and the clamp 227 is connected to the telescopic rod of the second cylinder 226.

[0057] Specifically, when the clamping assembly 22 fixes the edge of the plastic bag, the platform 224 is located on the upper part of the second plate body 221, and the second cylinder 226 pushes the clamping plate 227 to press the plastic bag onto the boss 225. Under the action of the reciprocating drive module 21, the clamping assembly 22 drives the plastic bag to move. When the plastic bag moves to the top of the support 4, the drive device 223 drives the platform 224 to move downward, and the plastic bag is placed on the support 4. The platform 224 moves to the bottom end of the second plate body 221, where the clamping assembly 22 pulls the edge of the plastic bag. When cutting holes, due to the shape limitation of the support 4, the clamping assembly 22 can provide sufficient pulling force.

[0058] In one embodiment of the present application, Figure 8 As shown, it also includes an adjustment component 5, which includes two moving grooves 51, two bidirectional screws 52 and a driving component 53.

[0059] Among them, two movable grooves 51 are symmetrically arranged on the workbench 1, two bidirectional screws 52 are rotatably arranged inside the corresponding movable grooves 51, the support feet of the reciprocating drive module 21 are threadedly connected with the bidirectional screws 52, and the driving component 53 is installed on the workbench 1, and the driving component 53 is connected to the bidirectional screws 52.

[0060] It can be understood that by starting the adjustment component 5, the distance between the two mobile feeding mechanisms 2 can be changed, so that the present device can be suitable for processing various types of plastic bags. Specifically, the driving component 53 drives the bidirectional screw 52 to rotate, and the bidirectional screw 52 is threadedly connected to the support leg of the reciprocating drive module 21, and the two mobile feeding mechanisms 2 move away from or towards each other.

[0061] In one embodiment of the present application, Figure 2 and Fig. 9 As shown, the bottom of the frame 33 is arranged in an open structure, and two flanges 61 are symmetrically arranged on the bottom of the frame 33.

[0062] It is understandable that the flange 61 can reduce the contact area between the frame 33 and the plastic bag, thereby increasing the pressure and the force between the two, thereby ensuring the quality of the plastic bag cutting operation.

[0063] In summary, the plastic bag cutting device of the embodiment of the present application pulls the edge of the plastic bag through the clamping component, and the flattening component can place the plastic bag on the inclined surfaces on both sides of the support. The intersection of the inclined surface and the plane of the support can block the wrinkles on the surface of the plastic bag, so that the plastic bag placed on the plane of the support will not have wrinkles, thereby ensuring the cutting quality of the plastic bag. When the hole cutting component is detached from the support, the residual material can be unloaded, so that the support can collect the residual material, ultimately achieving the purpose of saving manpower.

[0064] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0066] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. A plastic bag cutting device, characterized in that: include: A workbench, a mobile feeding mechanism, a hole cutting mechanism and a support member, wherein: The mobile feeding mechanism includes two reciprocating drive modules and two clamping assemblies, wherein: The two reciprocating drive modules are symmetrically arranged on the workbench, and the two clamping assemblies are respectively connected to the sliders of the corresponding reciprocating drive modules; The hole cutting mechanism comprises a gantry, a hydraulic telescopic rod, a frame, a hole cutting assembly and two flattening assemblies, wherein: The gantry is connected to the workbench; The hydraulic telescopic rod is installed on the gantry; The frame is connected to one end of the hydraulic telescopic rod; The hole cutting assembly is arranged inside the frame; The two flattening components are symmetrically arranged on both sides of the frame; The support member is arranged on the workbench in an arched structure. A plane and two inclined surfaces are provided on the support member. A through hole is opened on the plane. The through hole is arranged opposite to the hole cutting component, and the inclined surface is arranged opposite to the flattening component.

2. The plastic bag hole cutting device according to claim 1, characterized in that: The hole cutting assembly comprises a first cylinder, a guide plate, a tubular cutter and a pusher, wherein: The first cylinder is installed inside the frame; The guide plate is connected to the telescopic end of the first cylinder, and the guide plate is slidably connected to the frame; The tubular cutter is arranged on the guide plate, and a tip is provided on the tubular cutter; The material pushing member is arranged on the tubular cutter.

3. The plastic bag hole cutting device according to claim 2, characterized in that: The pusher comprises a limit rod, a spring and a push block, wherein: Two through slots are formed on the outer wall of the tubular cutter, and the limit rod is slidably connected inside the two through slots; The spring is disposed between the stop rod and the inner top wall of the tubular cutter; The top block is arranged on the limiting rod, and the top block is located inside the tubular cutter.

4. The plastic bag cutting device according to claim 1, characterized in that: The flattening assembly includes a first plate, a roller group and an elastic telescopic rod, wherein: The first plate is pivotally connected to the frame; The first plate body is provided with a groove, and a roller group is installed inside the groove; Two ends of the elastic telescopic rod are pivotally connected to the frame body and the first plate body respectively.

5. The plastic bag hole cutting device according to claim 1, characterized in that: The clamping assembly includes a second plate, a driving device, a carrier, a boss, a second cylinder and a clamping plate, wherein: The second plate is connected to the slider of the reciprocating drive module; A slot is formed on the second plate, the driving device is arranged on the second plate, and the driving device passes through the inside of the slot; The carrier is slidably disposed on the second plate body, and the carrier is connected to the driving device; The boss is integrally formed and arranged on the carrier; The second cylinder is installed on the carrier, and the clamping plate is connected to the telescopic rod of the second cylinder.

6. The plastic bag hole cutting device according to claim 1, characterized in that: It also includes an adjustment component, which includes two moving grooves, two bidirectional screws and a driving component, wherein: The two movable grooves are symmetrically arranged on the workbench; The two bidirectional screws are rotatably arranged inside the corresponding moving grooves, and the legs of the reciprocating drive module are threadedly connected with the bidirectional screws; The driving component is installed on the workbench, and the driving component is connected to the bidirectional screw.

7. The plastic bag hole cutting device according to claim 1, characterized in that: The bottom of the frame is arranged in an open structure, and two flanges are symmetrically arranged on the bottom of the frame.

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