Automatic punching device for plastic packaging bag

By using a dual-punch head structure and a tray positioning device, the problem of excessive single-punch thickness in existing plastic packaging bag punching devices has been solved, achieving efficient segmented punching and positioning, and improving punching quality and work efficiency.

CN223877643UActive Publication Date: 2026-02-06GUANGXI NANNING QIANGKANG PLASTIC COLOR PRINTING PACKAGING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520477773.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-02-06
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

Existing plastic packaging bag punching devices punch excessively thick holes in a single pass, affecting punching quality and causing inconvenience during use.

Method used

The device employs a dual-punching head structure. First, the pressure plate drives the second punching head to perform preliminary punching. Then, the first punching head, in conjunction with the pressure plate, completes the punching process. The plastic packaging bag is punched in sections, and the device is positioned by the movable baffle and limiting plate on the tray.

Benefits of technology

It reduces the thickness of a single punch, improves punching quality and efficiency, and facilitates the hanging use of plastic packaging bags.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223877643U_ABST
    Figure CN223877643U_ABST
Patent Text Reader

Abstract

The utility model discloses an automatic punching device for plastic packaging bags, which relates to the technical field of plastic packaging bag processing and comprises a punching device body, supporting rods are detachably mounted at four corners of the top of the punching device body, and fixing plates are detachably mounted at the tops of the supporting rods. A hydraulic push rod is detachably installed at the center of the top of the fixing plate, a pressing plate is detachably installed at one end of a push rod of the hydraulic push rod, a connecting rod movably penetrates through the outer side of one end of the supporting rod, a supporting plate is detachably installed at one end of the connecting rod, and elastic silica gel cylinders are symmetrically and detachably installed at the top of the supporting plate. And a fixing ring is detachably mounted at the top of the elastic silica gel cylinder. According to the automatic punching device for the plastic packaging bag, the second punching head is driven by the arranged pressing plate to conduct preliminary punching, then the first punching head is used for conducting punching on the lower portion in cooperation with the upper pressing plate, the plastic packaging bag is punched in a segmented mode, the single-time punching thickness is reduced, and the punching effect is improved.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to plastic packaging bag processing technical field, especially a kind of automatic punching device of plastic packaging bag. BACKGROUND

[0002] Plastic packaging bag is a kind of plastic as raw material, for the packaging bag of various goods in production and life, widely used in daily life and industrial production, plastic packaging bag needs to be punched when producing and processing, and the plastic packaging bag after punching is more convenient to hang, and it is convenient to use plastic packaging bag in daily life.

[0003] The existing plastic packaging bag punching device usually punches from top to bottom, and the single punching thickness is too large, which affects the punching quality and brings certain adverse effects to the use process of people, in order to solve the problems of the prior art, a kind of automatic punching device of plastic packaging bag is provided. UTILITY MODEL CONTENTS

[0004] The utility model is mainly to provide a kind of automatic punching device of plastic packaging bag, can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] An automatic punching device of plastic packaging bag, comprising a punching device main body, the punching device main body top four corners are detachably installed with support rod, the support rod top is detachably installed with fixed plate, the fixed plate top center is detachably installed with hydraulic push rod, the push rod one end of the hydraulic push rod is detachably installed with pressing plate, the support rod one end outer side is movably penetrated with connecting rod, the connecting rod one end is detachably installed with supporting plate, the supporting plate top is symmetrically detachably installed with elastic silica gel cylinder, the elastic silica gel cylinder top is detachably installed with fixed ring.

[0007] Preferably, the inner wall of the punching device main body is detachably installed with a conical seat on one side, the first punching head is detachably installed on the top center of the conical seat, the center point of the top of the first punching head is vertically flush with the center point of the push rod one end of the hydraulic push rod, and the second punching head is detachably installed on the bottom center of the pressing plate.

[0008] Preferably, a plurality of limiting grooves are evenly formed on one side of the top of the supporting plate, a plurality of movable baffles are movably penetrated on one side of the top of the supporting plate, a limiting plate is detachably installed on one side of the movable baffle, and the bottom of the limiting plate abuts against the inner wall bottom of the limiting groove formed in the supporting plate.

[0009] Preferably, the bottom of the movable baffle is detachably installed with a rubber pad, and the rubber pad has the same top view shape as the movable baffle.

[0010] Preferably, a through hole is formed in the center of the top of the pressing plate, and the center point of the through hole formed in the pressing plate is vertically flush with the center point of one end of the push rod of the hydraulic push rod.

[0011] Preferably, one end of the supporting rod is detachably mounted outside the inner wall of the fixing ring, and the one end of the supporting rod is movably penetrated into the interior of the elastic silica gel cylinder.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1、The utility model discloses a pressing plate drives a second punching head to preliminarily punch, and then utilizes a first punching head to punch in cooperation with the pressing plate below, so that plastic packaging bags are segmented punched, the thickness of single punching is reduced, and the punching effect is improved.

[0014] 2、The utility model discloses a movable baffle evenly arranged on the supporting plate can assist positioning plastic packaging bags of different sizes on the supporting plate, so that workers can quickly position plastic packaging bags placed on the supporting plate, and work efficiency is improved. DRAWINGS

[0015] Figure 1 It is the overall structure schematic diagram of the utility model;

[0016] Figure 2 It is the overall split structure schematic diagram of the utility model;

[0017] Figure 3 It is Figure 2 the enlarged view of area A in the middle;

[0018] Figure 4 It is Figure 2 the enlarged view of area B in the middle.

[0019] In the drawing: 1, punching device main body;2, supporting rod;3, fixed plate;4, hydraulic push rod;5, pressing plate;6, connecting rod;7, supporting plate;8, elastic silica gel cylinder;9, fixed ring;10, conical seat;11, first punching head;12, movable baffle;13, limiting plate;14, rubber pad;15, second punching head. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] Embodiment one, as Figures 1-3As shown, a plastic packaging bag automatic punching device, by starting the hydraulic push rod 4, the push rod of the hydraulic push rod 4 drives the pressing plate 5 to rise up, then the plastic packaging bag to be punched is placed above the supporting plate 7, then the hydraulic push rod 4 is started, the push rod of the hydraulic push rod 4 drives the pressing plate 5 to press down the plastic packaging bag and tightly adhere to the supporting plate 7, the supporting plate 7 and the plastic packaging bag above fall under the pushing of the pressing plate 5, until the plastic packaging bag above the supporting plate 7 is punched by the first punching head 11 cooperating with the second punching head 15, completing the punching of the plastic packaging bag on the supporting plate 7.

[0022] In the process of falling and punching of the supporting plate 7 and the plastic packaging bag above, the supporting plate 7 falls under the stretching of the elastic silica gel cylinder 8 based on the fixed ring 9, the first punching head 11 punches the plastic packaging bag placed on the supporting plate 7 under the support of the conical seat 10, after the punching is completed, the push rod of the hydraulic push rod 4 drives the pressing plate 5 to rise, the supporting plate 7 and the plastic packaging bag above lose the pressing of the pressing plate 5, the supporting plate 7 is pulled up under the elastic effect of the elastic silica gel cylinder 8 itself, the supporting plate 7 drives the plastic packaging bag above to rise, and the plastic packaging bag punched on the supporting plate 7 is swept to the punching device main body 1 during the rising of the supporting plate 7.

[0023] As shown in Embodiment Two, Figure 2 and Figure 4 As shown, a plastic packaging bag automatic punching device, when the plastic packaging bag is placed on the supporting plate 7, the movable baffle 12 at the corresponding position on the supporting plate 7 is pushed up from the bottom of the supporting plate 7 according to the size of the placed plastic packaging bag, the rubber pad 14 drives the movable baffle 12 to rise up until the bottom of the rubber pad 14 is flush with the bottom of the supporting plate 7, and the movable baffle 12 is temporarily prevented from falling on the supporting plate 7 by the friction between the rubber pad 14 and the supporting plate 7, then one corner of the plastic packaging bag on the supporting plate 7 is positioned through the movable baffle 12 rising on the supporting plate 7, facilitating the rapid positioning of the plastic packaging bag on the supporting plate 7, after the plastic packaging bag on the supporting plate 7 is punched, the punched plastic packaging bag is removed, the movable baffle 12 on the supporting plate 7 is pressed down, the movable baffle 12 drives the limiting plate 13 to fall back to the original position on the supporting plate 7, the limiting plate 13 on the movable baffle 12 falls into the limiting groove on the supporting plate 7, the movable baffle 12 is limited by the limiting plate 13, and the top of the movable baffle 12 is flush with the top of the supporting plate 7.

[0024] It needs to be explained that the utility model discloses a kind of plastic packaging bag automatic punching device, when using, the plastic packaging bag is positioned to movable baffle 12 on supporting plate 7, after plastic packaging bag positioning is finished on supporting plate 7, start hydraulic push rod 4, the push rod of hydraulic push rod 4 drives pressing plate 5 to press down, pressing plate 5 first drives second punching head 15 to press down and punch, then pressing plate 5 is clamped plastic packaging bag and is pressed down by first punching head 11 and is punched, after completing punching, hydraulic push rod 4 drives push rod to lift, the push rod of hydraulic push rod 4 drives pressing plate 5 to lift, while supporting plate 7 is pressed down after losing pressing plate 5, supporting plate 7 is pulled and is lifted under the elastic force of elastic silica gel cylinder 8 itself, supporting plate 7 retreats to original position, to complete a plastic packaging bag punching.

[0025] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic punching device for plastic packaging bags, comprising a punching device body (1), characterized in that: The supporting rod (2) top is detachably installed with a fixed plate (3), the fixed plate (3) top center is detachably installed with a hydraulic push rod (4), the push rod one end of the hydraulic push rod (4) is detachably installed with a pressing plate (5), the supporting rod (2) one end outside is movably penetrated with a connecting rod (6), the connecting rod (6) one end is detachably installed with a supporting plate (7), the supporting plate (7) top is symmetrically detachably installed with an elastic silica gel cylinder (8), the elastic silica gel cylinder (8) top is detachably installed with a fixed ring (9).

2. The automatic perforating device for plastic packaging bags according to claim 1, characterized in that: The supporting rod (2) top is detachably installed with a fixed plate (3), the fixed plate (3) top center is detachably installed with a hydraulic push rod (4), the push rod one end of the hydraulic push rod (4) is detachably installed with a pressing plate (5), the supporting rod (2) one end outside is movably penetrated with a connecting rod (6), the connecting rod (6) one end is detachably installed with a supporting plate (7), the supporting plate (7) top is symmetrically detachably installed with an elastic silica gel cylinder (8), the elastic silica gel cylinder (8) top is detachably installed with a fixed ring (9).

3. The automatic perforating device for plastic packaging bags according to claim 1, characterized in that: The supporting plate (7) top side is uniformly provided with a plurality of limiting grooves, the supporting plate (7) top side is movably penetrated with a plurality of movable baffles (12), the movable baffle (12) side is detachably installed with a limiting plate (13), the limiting plate (13) bottom and the limiting groove inner wall bottom of the supporting plate (7) abut.

4. The automatic perforating device for plastic packaging bags according to claim 3, characterized in that: The movable baffle (12) bottom is detachably installed with a rubber pad (14), and the rubber pad (14) has the same shape as the movable baffle (12) viewed from above.

5. The automatic perforating device for plastic packaging bags according to claim 1, characterized in that: The pressing plate (5) top center is provided with a through hole, and the center point of the through hole of the pressing plate (5) is vertically flush with the center point of the push rod one end of the hydraulic push rod (4).

6. The automatic perforating device for plastic packaging bags according to claim 1, characterized in that: The supporting rod (2) one end outside and the fixed ring (9) inner wall are detachably installed, and the supporting rod (2) one end outside and the elastic silica gel cylinder (8) inside are movably penetrated.