Opening structure of plastic packaging bag
By designing the opening structure of the plastic packaging bag and using the meshing motion of the outer toothed ring and the first gear, the problem of cumbersome adjustment of the opening shape is solved, and the automated packaging of various forms of items is realized, reducing labor costs and improving efficiency.
Patent Information
- Application Number
- CN202422127249.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-30
AI Technical Summary
When filling rectangular and round objects, it is more cumbersome to manually adjust the shape of the opening of the plastic packaging bag, which makes the operation time-consuming and labor-intensive.
A plastic packaging bag opening structure is designed to adjust the shape of the cutting barrel through the meshing movement of the outer toothed ring and the first gear, and combine it with a mechanical device to realize the semi-automatic opening function to adapt to the packaging of various forms of items.
It reduces manual operation costs, improves packaging efficiency, and realizes automatic packaging of various forms of items.
Smart Images
Figure CN223059370U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging, and more specifically, to an opening structure of a plastic packaging bag. Background Art
[0002] The opening structure design of a plastic packaging bag is to facilitate users to open the package while maintaining the sealing performance of the package; a mechanical device for automatically opening the mouth of a plastic packaging bag can improve packaging efficiency and reduce labor costs.
[0003] Currently, when filling items into a plastic packaging bag, generally, people manually open the opening of the plastic bag. However, when filling cuboid-shaped and cylindrical items, it is necessary to open the opening of the plastic bag, and the shape of the opening should be adapted to the shape of the bottom of the item. In this process, the manual operation steps are relatively cumbersome, and it is time-consuming and laborious to support. In view of this, we propose an opening structure of a plastic packaging bag. Content of the Utility Model
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide an opening structure of a plastic packaging bag to solve the technical problem that it is relatively cumbersome for people to manually adjust the shape of the opening of a plastic packaging bag when filling rectangular and circular items.
[0005] To solve the above technical problems, the utility model provides the following technical solution: an opening structure of a plastic packaging bag, including a support plate, a limiting plate is fixedly connected to the top of the support plate, a plurality of limiting grooves are opened on the top of the limiting plate and are distributed in a circular array, an adjustment area is formed between the limiting plate and the support plate, a feeding cylinder is movably sleeved on the inner wall of the limiting plate, and an adjustment mechanism is arranged inside the adjustment area; the adjustment mechanism includes an external gear ring and a stability unit; the external gear ring is movably connected to the top of the support plate, a plurality of first gears are movably connected between the limiting plate and the support plate through first insertion rods and the first gears correspond to the positions of the limiting grooves, two ends of each first insertion rod are respectively movably sleeved with a support frame. In the utility model, by rotating the external gear ring, the first gears move on the travel track. When the four first gears are meshed and connected with the teeth, cylindrical items can flow through the feeding cylinder. When two of the first gears move to the inner convex surfaces and apply pressure to the feeding cylinder through the support frames, the feeding cylinder deforms, and cuboid-shaped items can flow through the feeding cylinder. In the utility model, through the movement of the first gears, the support frames apply pressure to the feeding cylinder, and the shape of the flow port of the feeding cylinder can be adjusted, thereby realizing the packaging of items in various forms. At the same time, through the mechanical device, the semi-automatic opening function is realized, which can reduce labor costs and improve the use efficiency of the device.
[0006] Preferably, inner convex surfaces are symmetrically arranged on the inner wall of the external gear ring, and a plurality of teeth are symmetrically fixedly connected to the inner wall of the external gear ring, and the plurality of teeth and the inner convex surfaces form a travel track.
[0007] Preferably, the first gear is in movable contact with the travel track, and sliding discs are fixedly connected to both sides of the first gear and are in movable contact with the inner convex surface.
[0008] Preferably, a limiting block is fixedly connected to the top of one of the support frames and is movably connected inside the limiting groove, and two rollers are movably connected to the inner walls on both sides of each support frame through second insertion rods.
[0009] Preferably, the stabilizing unit includes a number of transmission rings, each transmission ring is movably sleeved on the bottom of the first insertion rod, and arc-shaped telescopic rods are movably connected between adjacent two transmission rings through first pins. In this utility model, by setting the arc-shaped telescopic rods, when extruding the blanking cylinder, the arc-shaped telescopic rods can prevent the first gear from separating from the teeth during movement, affecting the normal operation of the device, which is beneficial to improving the stability of the device.
[0010] Preferably, a first motor is fixedly connected to the bottom of the support plate, and a transmission gear is fixedly connected to the output end of the first motor and is meshed with the external gear ring.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] 1. In this utility model, through the rotation of the external gear ring, the first gear moves on the travel track. When the four first gears are meshed with the teeth, cylindrical items can flow through the blanking cylinder. When two of the first gears are in contact with the inner convex surface and apply pressure to the blanking cylinder through the support frames, the blanking cylinder deforms, and cubic items can flow through the blanking cylinder. In this utility model, through the movement of the first gear, the support frames apply pressure to the blanking cylinder, and the shape of the flow port of the blanking cylinder can be adjusted, thereby realizing the packaging of items in various forms. At the same time, through the mechanical device, the semi-automatic opening function is realized, which can reduce labor costs and improve the use efficiency of the device.
[0013] 2. In this utility model, by setting the arc-shaped telescopic rods, when extruding the blanking cylinder, the arc-shaped telescopic rods can prevent the first gear from separating from the teeth during movement, affecting the normal operation of the device, which is beneficial to improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0015] Figure 2 is a three-dimensional partial exploded structural schematic diagram of the present utility model, showing the exploded structure of the adjustment mechanism;
[0016] Figure 3 is a three-dimensional exploded structural schematic diagram of the stabilizing unit of the present utility model;
[0017] Figure 4 Schematic structural diagram of the use state of the adjustment mechanism of the present utility model Figure 1 ;
[0018] Figure 5 Schematic structural diagram of the use state of the adjustment mechanism of the present utility model Figure 2 。
[0019] Explanation of the reference numerals in the figure: 1, support plate; 2, limit plate; 201, limit groove; 3, blanking cylinder; 4, adjustment mechanism; 401, external gear ring; 401a, inner convex curved surface; 401b, tooth; 402, first gear; 402a, sliding disk; 403, support frame; 403a, limit block; 403b, roller; 5, stable unit; 501, transmission ring; 502, arc telescopic rod; 6, first motor; 7, transmission gear. Specific implementation mode
[0020] As Figures 1 to 5 shown, a plastic packaging bag opening structure related to the present utility model includes a support plate 1, a limit plate 2 is fixedly connected to the top of the support plate 1, a plurality of limit grooves 201 are opened on the top of the limit plate 2 and the limit grooves 201 are distributed in a circular array, an adjustment area is formed between the limit plate 2 and the support plate 1, and a blanking cylinder 3 is movably sleeved on the inner wall of the limit plate 2. It should be noted that the blanking cylinder 3 is made of rubber material and can be deformed during use, as Figure 4 and Figure 5As shown in the figure, an adjusting mechanism 4 is arranged inside the adjusting area; the adjusting mechanism 4 includes an external tooth ring 401 and a stabilizing unit 5; the external tooth ring 401 is movably connected to the top of the support plate 1, and a number of first gears 402 are movably connected between the limiting plate 2 and the support plate 1 through first inserting rods, and the first gears 402 correspond to the position of the limiting groove 201. A support frame 403 is movably sleeved at both ends of each first inserting rod. In this utility model, by rotating the external tooth ring 401, the first gears 402 make circular motions on the travel track. When the four first gears 402 are meshed and connected with the teeth 401b, cylindrical items can flow through the blanking cylinder 3. When two of the first gears 402 move onto the inner convex surface 401a and apply pressure to the blanking cylinder 3 through the support frame 403, the blanking cylinder 3 deforms, and cubic items can flow through the blanking cylinder 3. In this utility model, through the movement of the first gears 402, the support frame 403 applies pressure to the blanking cylinder 3, and the shape of the flow port of the blanking cylinder 3 can be adjusted, thereby realizing the packaging of items in various forms. At the same time, through the mechanical device, a semi-automatic opening function is realized, which can reduce labor costs and improve the use efficiency of the device. When in use, first connect one end of the blanking cylinder 3 with a plastic packaging bag, and then through an external circuit mechanism, make the first motor 6 work, drive the transmission gear 7 to rotate, and through the meshing transmission of the transmission gear 7, the external tooth ring 401 rotates, and drives the first gear 402 to rotate through the teeth 401b and move on the travel track. When the four first gears 402 are meshed and connected with the teeth 401b, the inner wall of the blanking cylinder 3 is in a circular state, and then cylindrical materials can flow through and be conveyed into the packaging bag. When the external tooth ring 401 rotates, two of the first gears 402 move onto the inner convex surface 401a, and apply a force to the blanking cylinder 3 through the support frame 403. Since the blanking cylinder 3 is made of rubber material, the blanking cylinder 3 deforms, and its flow port is in a rectangular shape, and then cubic items can flow through.
[0021] In the embodiment of the present utility model, inner convex surfaces 401a are symmetrically arranged on the inner wall of the external tooth ring 401, and a number of teeth 401b are symmetrically and fixedly connected to the inner wall of the external tooth ring 401, and the number of teeth 401b and the inner convex surfaces 401a form a travel track. The first gear 402 is in movable contact with the travel track. Sliding disks 402a are fixedly connected to both sides of the first gear 402, and the sliding disks 402a are in movable contact with the inner convex surfaces 401a. It is worth noting that by setting the inner convex surfaces 401a, during the rotation of the first gear 402, through meshing connection with the teeth 401b, the first gear 402 makes a circular motion. When the four first gears 402 are meshed and connected with the teeth 401b, the channel of the blanking cylinder 3 is circular, as Figure 4 shown. When two of the first gears 402 move on the inner convex surface 401a, the channel of the blanking cylinder 3 is rectangular, as Figure 5 shown, and rectangular and circular items can be packaged.
[0022] In an embodiment of the present utility model, a limiting block 403a is fixedly connected to the top of one of the support frames 403, and the limiting block 403a is movably connected inside the limiting groove 201. Two rollers 403b are movably connected to the inner walls on both sides of each support frame 403 through second insertion rods. It should be noted that during the movement of the first gear 402, the direction of the support frame 403 is always kept unchanged by the movement of the limiting block 403a in the limiting groove 201, which can prevent the support frame 403 from applying pressure to the blanking cylinder 3 during the movement of the first gear 402, resulting in the deviation of the application position and affecting the shape of the through port after the blanking cylinder 3 is deformed.
[0023] In an embodiment of the present utility model, the stabilizing unit 5 includes a plurality of transmission rings 501. Each transmission ring 501 is movably sleeved at the bottom of the first insertion rod. An arc-shaped telescopic rod 502 is movably connected between two adjacent transmission rings 501 through a first insertion pin. A first motor 6 is fixedly connected to the bottom of the support plate 1. The output end of the first motor 6 is fixedly connected to a transmission gear 7, and the transmission gear 7 is meshed with the external tooth ring 401. By setting the arc-shaped telescopic rod 502 in the present utility model, when the blanking cylinder 3 is extruded, the arc-shaped telescopic rod 502 can prevent the first gear 402 from separating from the tooth 401b during the movement process, affecting the normal operation of the device, which is beneficial to improving the stability of the device. When the first gear 402 is displaced, the movement of the first gear 402 can be restricted through the arc-shaped telescopic rod 502, preventing the first gear 402 from separating from the tooth 401b and the inner convex surface 401a and affecting the normal operation of the device.
[0024] Working principle: This embodiment provides a plastic packaging bag opening structure. When in use, first connect one end of the blanking cylinder 3 with the plastic packaging bag, and then through an external circuit mechanism, make the first motor 6 work to drive the transmission gear 7 to rotate. Through the meshing transmission of the transmission gear 7, the external tooth ring 401 rotates, and the first gear 402 is driven to rotate through the tooth 401b and moves on the travel track. When the four first gears 402 are meshed with the tooth 401b, the inner wall of the blanking cylinder 3 is in a circular state, and then cylindrical materials can flow through and be conveyed into the packaging bag. When the external tooth ring 401 rotates, two of the first gears 402 move onto the inner convex surface 401a, and a force is applied to the blanking cylinder 3 through the support frame 403. Since the blanking cylinder 3 is made of rubber material, the blanking cylinder 3 deforms, and its inner through port is in a rectangular shape, and then cubic items can flow through. When the first gear 402 is displaced, the movement of the first gear 402 can be restricted through the arc-shaped telescopic rod 502, preventing the first gear 402 from separating from the tooth 401b and the inner convex surface 401a and affecting the normal operation of the device.
[0025] The embodiments disclosed in this utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of this utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of this utility model, they are within the protection scope of this utility model.
Claims
1. A plastic packaging bag opening structure, characterized in that, It includes a support plate (1). A limiting plate (2) is fixedly connected to the top of the support plate (1). A number of limiting grooves (201) are formed in the top of the limiting plate (2), and the limiting grooves (201) are distributed in an annular array. An adjustment area is formed between the limiting plate (2) and the support plate (1). A blanking cylinder (3) is movably sleeved on the inner wall of the limiting plate (2), and an adjustment mechanism (4) is arranged inside the adjustment area. The adjustment mechanism (4) includes an external gear ring (401) and a stabilizing unit (5). The external gear ring (401) is movably connected to the top of the support plate (1). A number of first gears (402) are movably connected between the limiting plate (2) and the support plate (1) through first insertion rods, and the first gears (402) correspond to the positions of the limiting grooves (201). Both ends of each first insertion rod are movably sleeved with support frames (403).
2. The opening structure of a plastic packaging bag according to claim 1, wherein, Inner convex surfaces (401a) are symmetrically arranged on the inner wall of the external gear ring (401). A number of gear teeth (401b) are symmetrically fixedly connected to the inner wall of the external gear ring (401), and the number of gear teeth (401b) and the inner convex surfaces (401a) form a travel track.
3. The opening structure of a plastic packaging bag according to claim 2, wherein, The first gear (402) is in movable contact with the travel track. Sliding disks (402a) are fixedly connected to both sides of the first gear (402), and the sliding disks (402a) are in movable contact with the inner convex surfaces (401a).
4. The open structure of a plastic packaging bag according to claim 3, characterized in that, A limiting block (403a) is fixedly connected to the top of one of the support frames (403), and the limiting block (403a) is movably connected inside the limiting groove (201). Two rollers (403b) are movably connected to the inner walls on both sides of each support frame (403) through second insertion rods.
5. A plastic packaging bag opening structure according to claim 1, characterized in that, The stabilizing unit (5) includes a number of transmission rings (501). Each transmission ring (501) is movably sleeved on the bottom of the first insertion rod. Arc-shaped telescopic rods (502) are jointly movably connected between adjacent two transmission rings (501) through first pins.
6. The opening structure of a plastic packaging bag according to claim 1, characterized in that, A first motor (6) is fixedly connected to the bottom of the support plate (1). A transmission gear (7) is fixedly connected to the output end of the first motor (6), and the transmission gear (7) is meshed with the external gear ring (401).