Cutter capable of rapidly switching blades for bag making machine

By designing a bag-making machine cutter structure that allows for quick switching and adjustment, the problems of inconvenient cutter position adjustment and cleaning have been solved, enabling the cutting and safe cleaning of plastic bags of different thicknesses.

CN224013103UActive Publication Date: 2026-03-20WUXI KING MO MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing bag-making machines have blades that are not easy to adjust, making it difficult to cut plastic bags of different thicknesses. Furthermore, the sharp blades can easily cut hands and are inconvenient to clean.

Method used

A bag-making machine cutter with quick blade switching was designed. The cutter can be quickly changed and adjusted through a structure including a connecting frame, cylinder, limit rod, protrusion, and cleaning block. The cutter can be safely cleaned by combining spring buffer and electric cleaning block.

Benefits of technology

It enables quick blade replacement and adjustment, ensuring cutting results for plastic bags of different thicknesses, and achieves manual cleaning without manual intervention through an automatic cleaning block, improving safety and ease of operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224013103U_ABST
Patent Text Reader

Abstract

The utility model discloses a cutter capable of rapidly switching blades for a bag making machine. The cutter comprises a workbench, a connecting mechanism is arranged in the connecting frame, and the connecting mechanism comprises a connecting door, a convex column and a cutter body; a cleaning mechanism is arranged above the workbench and comprises a threaded rod, a cleaning block and a collecting groove, and the cleaning block is slidably connected with the cutter body. According to the bag making machine cutter capable of rapidly switching the blades, the connecting frame is rotationally connected with the connecting door, the cutter body and the connecting frame are connected together through the convex column, the cutter body can be conveniently and rapidly switched, the spring can enable the first hollow frame and the second hollow frame to keep a certain distance, and when the second hollow frame moves downwards to make contact with a workbench, the cutter body can be conveniently and rapidly switched. And the first hollow frame continues to move downwards to enable the spring to generate elastic deformation, the buffering effect is achieved, the cleaning block can clean the cutter body, and the cleaned chippings can be collected into the collecting groove and do not need to be directly cleaned manually.
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Description

TECHNICAL FIELD

[0001] The utility model relates to bag making machine technical field, concretely to a kind of cutting knife for bag making machine with quick switching blade. BACKGROUND

[0002] Bag making machine is a kind of mechanical equipment for producing various plastic bags, packaging bags and other plastic products;Cutting knife for bag making machine is an important component of bag making machine, and its quality and performance directly affect the effect and quality of bag making;High-quality bag making machine cutting knife should be made of high-strength, corrosion-resistant alloy material to ensure that it is not easy to deform and damage during use;

[0003] Referring to Chinese patent authorized announcement No.CN218054254U, authorized announcement day is December 16, 2022, a double-line stationery bag making machine cutting knife mechanism is disclosed, the double-line stationery bag making machine cutting knife mechanism has the effect of facilitating the disassembly of the cutting knife;

[0004] But the utility model in the process of using, it is inconvenient to adjust the position of cutting knife in mounting frame, so as to inconveniently cut plastic bags of different thicknesses, and the cutting knife is relatively sharp, if directly using hand to clean the cutting knife, it is easy to scratch hand, therefore there is further improved space;

[0005] Therefore, we propose a cutting knife for bag making machine with quick switching blade to solve the problems raised in the above. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a cutting knife for bag making machine with quick switching blade to solve the problems raised in the above background technology that the utility model in the process of using is inconvenient to adjust the position of cutting knife in mounting frame, so as to inconveniently cut plastic bags of different thicknesses, and the cutting knife is relatively sharp, if directly using hand to clean the cutting knife, it is easy to scratch hand, therefore there is further improved space.

[0007] To achieve the above object, the utility model provides the following technical scheme: a cutting knife for bag making machine with quick switching blade, comprising: a workbench;

[0008] Further comprising:

[0009] A connecting frame is provided with a connecting mechanism inside, wherein the connecting mechanism comprises a connecting door, a convex column and a cutting knife body, the convex column is arranged on the front side of the connecting frame, and the convex column is arrayed distributed;

[0010] A cleaning mechanism is arranged above the workbench, wherein the cleaning mechanism comprises a threaded rod, a cleaning block and a collecting groove, the cleaning block is slidably connected with the cutting knife body, and the cleaning block is threadedly connected with the threaded rod.

[0011] Preferably, the upper side of the workbench is provided with a connecting frame, the lower side of the connecting frame is provided with a pneumatic cylinder, and the pneumatic cylinder is fixedly connected with the connecting frame.

[0012] Preferably, the upper side of the pneumatic cylinder is provided with a first limiting rod, the first limiting rod is slidingly connected with the connecting frame, and the first limiting rod is left-right symmetrical about the vertical central axis of the pneumatic cylinder.

[0013] Preferably, the connecting frame is rotationally connected with a connecting door, the convex column is clampedly connected with the cutter body, and the connecting door is closely attached to the cutter body.

[0014] Preferably, the connecting frame is fixedly connected with a first hollow frame through an L-shaped rod, the first hollow frame is slidingly connected with a connecting rod, and the connecting rod is arranged on the upper side of a second hollow frame.

[0015] Preferably, the connecting rods are arranged in an array, the outer sides of the connecting rods are provided with springs, and the connecting rods and the springs are one-to-one corresponding.

[0016] Preferably, the second hollow frame is fixedly connected with a mounting plate through an electric telescopic rod, the side surface of the mounting plate is provided with a motor, and the output shaft of the motor is fixedly connected with a threaded rod.

[0017] Preferably, the cleaning block is slidingly connected with a second limiting rod, one end of the second limiting rod is fixedly connected with the mounting plate, the other end of the second limiting rod is fixedly connected with a connecting plate, and the connecting plate of the second limiting rod is slidingly connected with the connecting frame.

[0018] Preferably, the side surface of the cleaning block is provided below with a collecting groove, and the collecting groove is left-right symmetrical about the vertical central axis of the cleaning block.

[0019] Compared with the prior art, the beneficial effects of the bag making machine cutter capable of quickly switching blades are as follows: the connecting frame is rotationally connected with the connecting door, the cutter body is connected together with the connecting frame through the convex column, the cutter body can be quickly switched, the first hollow frame and the second hollow frame can be kept at a distance by the spring, when the second hollow frame is in contact with the workbench after moving downward, the spring will be elastically deformed when the first hollow frame continues to move downward, thereby playing a buffering role, the cleaning block can clean the cutter body, and the cleaned debris can be collected into the collecting groove, without manual cleaning;

[0020] 1. The pneumatic cylinder, the connecting frame and the first limiting rod are arranged, when the pneumatic cylinder works, the connecting frame moves up and down, the upper side of the connecting frame is provided with the first limiting rod, the first limiting rod plays a limiting role on the pneumatic cylinder, preventing the connecting frame from tilting when moving up and down.

[0021] 2. The utility model discloses a connecting door, a convex column and a cutter body are arranged, the connecting bolt of the front side of the connecting door is rotated to be disconnected with the connecting frame, the connecting door can be rotated and opened, and the cutter body is connected with the connecting frame through the convex column, which is convenient and fast to switch the cutter body.

[0022] 3. The utility model discloses a first hollow frame, connecting rod and spring are arranged, the middle of the first hollow frame and the second hollow frame is provided with the connecting rod and the spring, the spring can keep the first hollow frame and the second hollow frame a distance, when the second hollow frame is contacted with the workbench and moves down, the first hollow frame continues to move down, and the spring will be elastically deformed at this time, and the buffering effect is achieved.

[0023] 4. The utility model discloses an installation plate, motor and threaded rod are arranged, the second hollow frame is connected with the installation plate through the electric telescopic link, and the other end of the installation plate is slidably connected with the connecting frame, which is convenient to move up and down.

[0024] 5. The utility model discloses a cleaning block, second limiting rod and collecting groove are arranged, when the threaded rod rotates, the cleaning block moves under the limiting of the second limiting rod, so that the cutter body is cleaned, and the debris cleaned is collected in the collecting groove, and manual cleaning is not needed. DRAWINGS

[0025] Figure 1 It is the front view three-dimensional structure schematic diagram of the utility model;

[0026] Figure 2 It is the connecting frame, connecting door and cutter body connecting structure schematic diagram of the utility model;

[0027] Figure 3 It is the first hollow frame cut structure schematic diagram of the utility model;

[0028] Figure 4 It is the utility model Figure 3 It is the enlarged structure schematic diagram of the utility model in A place;

[0029] Figure 5 It is the rear view three-dimensional structure schematic diagram of the utility model;

[0030] Figure 6 It is the threaded rod, cleaning block and collecting groove connecting structure schematic diagram of the utility model.

[0031] In the drawing: 1, workbench; 2, connecting frame; 3, air cylinder; 4, connecting frame; 5, first limiting rod; 6, connecting door; 7, convex column; 8, cutter body; 9, first hollow frame; 10, connecting rod; 11, spring; 12, second hollow frame; 13, installation plate; 14, motor; 15, threaded rod; 16, cleaning block; 17, second limiting rod; 18, collecting groove. DETAILED DESCRIPTION

[0032] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application. Embodiment one

[0034] The embodiment is a cutter for a bag making machine capable of quickly switching blades.

[0035] As shown in Figure 1 and Figure 2 , the upper side of the workbench 1 is provided with a connecting frame 2, the lower side of the connecting frame 2 is provided with a cylinder 3, the cylinder 3 is fixedly connected with a connecting frame 4, the upper side of the cylinder 3 is provided with a first limiting rod 5, the first limiting rod 5 is slidingly connected with the connecting frame 2, the first limiting rod 5 is symmetric about the vertical central axis of the cylinder 3, the connecting frame 4 is rotatably connected with a connecting door 6, a protruding column 7 is arranged on the front side of the connecting frame 4, the protruding columns 7 are arranged in an array, the protruding columns 7 are hingedly connected with a cutter body 8, and the connecting door 6 is tightly attached to the cutter body 8.

[0036] As shown in Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the connecting frame 4 is fixedly connected with a first hollow frame 9 through an L-shaped rod, the first hollow frame 9 is slidingly connected with a connecting rod 10, the connecting rods 10 are arranged in an array, the outer side of the connecting rod 10 is provided with a spring 11, the connecting rod 10 corresponds to the spring 11 one by one, the connecting rod 10 is arranged on the upper side of a second hollow frame 12, the second hollow frame 12 is fixedly connected with a mounting plate 13 through an electric telescopic rod, the side surface of the mounting plate 13 is provided with a motor 14, the output shaft of the motor 14 is fixedly connected with a threaded rod 15, a cleaning block 16 is slidingly connected with the cutter body 8, the cleaning block 16 is threadedly connected with the threaded rod 15, the cleaning block 16 is slidingly connected with a second limiting rod 17, one end of the second limiting rod 17 is fixedly connected with the mounting plate 13, the other end of the second limiting rod 17 is fixedly connected with a connecting plate, the connecting plate is slidingly connected with the connecting frame 4, the side surface of the cleaning block 16 is provided below with a collecting groove 18, and the collecting groove 18 is symmetric about the vertical central axis of the cleaning block 16.

[0037] It needs to be explained that the side of the connecting frame 4 is fixedly connected with the first hollow frame 9, the middle of the first hollow frame 9 and the second hollow frame 12 is provided with the connecting rod 10 and the spring 11, the spring 11 can keep the first hollow frame 9 and the second hollow frame 12 at a distance, the starting cylinder 3, the first hollow frame 9 will move with the movement of the connecting frame 4, and the second hollow frame 12 will move with the movement of the first hollow frame 9, when the second hollow frame 12 is in contact with the workbench 1, the first hollow frame 9 continues to move downward, the second hollow frame 12 will not move downward, at this time the first hollow frame 9 will continue to move downward under the connection of the connecting rod 10, at this time the spring 11 will be elastically deformed, play a buffering role, until the cutter body 8 cuts the plastic bag on the upper side of the workbench 1, has the buffering protection effect, and the second hollow frame 12 can limit the plastic bag, prevent the plastic bag from deforming when cutting. Specific embodiment two

[0039] The embodiment is to solve the problem of inconvenient and quick switching of the cutter body 8.

[0040] As shown in Figure 1 and Figure 2 , the upper side of the workbench 1 is provided with the connecting frame 2, the lower side of the connecting frame 2 is provided with the cylinder 3, when the cylinder 3 is working, the cylinder 3 will push the connecting frame 4 to move up and down, in addition, the upper side of the connecting frame 4 is provided with the first limiting rod 5, the first limiting rod 5 limits the cylinder 3, prevents the connecting frame 4 from tilting when moving up and down, rotates the connecting bolt on the front side of the connecting door 6, makes the connecting bolt on the front side of the connecting door 6 and the connecting frame 4 disconnected, that is, the connecting door 6 can be opened, and the front side of the connecting frame 4 is provided with the convex column 7, the cutter body 8 and the connecting frame 4 are connected together through the convex column 7, then rotate the connecting door 6, and make the connecting bolt on the front side of the connecting door 6 and the connecting frame 4 connected together, so as to achieve the purpose of convenient and quick switching of the cutter body 8.

[0041] In addition, the distance between the lower side of the cutter body 8 and the workbench 1 can be adjusted by adjusting the connecting position of the cutter body 8 and the convex column 7, so as to conveniently cut the plastic bag of different thickness. Specific embodiment three

[0043] The embodiment is to solve the problem of inconvenient cleaning of the cutter body 8.

[0044] As shown in Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the second hollow frame 12 and the mounting plate 13 are connected together through the electric telescopic rod, and the other end of the mounting plate 13 is slidably connected with the connecting frame 4 through the second limiting rod 17, so that the cleaning block 16 can move up and down, and when the electric telescopic rod works, the cleaning block 16 can move up and down, so that the cutter body 8 of different heights can be conveniently cleaned, the motor 14 is started, and the motor 14 will rotate with the threaded rod 15, the rotating threaded rod 15 will make the cleaning block 16 connected therewith move, so that the cutter body 8 can be conveniently cleaned, and the debris cleaned can be collected into the collecting groove 18, without manual direct cleaning, in addition, the second limiting rod 17 limits the cleaning block 16, preventing the cleaning block 16 from tilting on the lower side of the cutter body 8.

[0045] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, the standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical parts and equipment adopt the conventional types in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and the details are not described here.

[0046] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A cutter for a bag-making machine capable of quick blade switching, comprising: Workbench (1); Its characteristic is that it further includes: A connecting frame (4) is provided inside the connecting frame (4), wherein the connecting mechanism includes a connecting door (6), a protruding post (7) and a cutter body (8), the protruding post (7) is provided on the front side of the connecting frame (4) and the protruding posts (7) are arranged in an array; A cleaning mechanism is provided above the workbench (1), which includes a threaded rod (15), a cleaning block (16) and a collection groove (18). The cleaning block (16) is slidably connected to the cutter body (8), and the cleaning block (16) is threadedly connected to the threaded rod (15).

2. A bag-making machine cutter capable of rapid blade switching according to claim 1, characterized in that: The upper side of the workbench (1) is provided with a connecting frame (2), and the lower side of the connecting frame (2) is provided with a cylinder (3), and the cylinder (3) is fixedly connected to the connecting frame (4).

3. A bag-making machine cutter capable of rapid blade switching according to claim 2, characterized in that: The cylinder (3) is provided with a first limiting rod (5) on its upper side, and the first limiting rod (5) is slidably connected to the connecting frame (2), and the first limiting rod (5) is symmetrical about the vertical central axis of the cylinder (3).

4. A bag-making machine cutter capable of rapid blade switching according to claim 1, characterized in that: The connecting frame (4) is rotatably connected to the connecting door (6), and the protruding post (7) is engaged with the cutter body (8), and the connecting door (6) is tightly fitted with the cutter body (8).

5. A bag-making machine cutter capable of rapid blade switching according to claim 1, characterized in that: The connecting frame (4) is fixedly connected to the first hollow frame (9) by an L-shaped rod, and the first hollow frame (9) is slidably connected to the connecting rod (10), and the connecting rod (10) is located on the upper side of the second hollow frame (12).

6. A bag-making machine cutter capable of rapid blade switching according to claim 5, characterized in that: The connecting rods (10) are arranged in an array, and springs (11) are provided on the outside of the connecting rods (10), and the connecting rods (10) and springs (11) correspond one-to-one.

7. A bag-making machine cutter capable of rapid blade switching according to claim 5, characterized in that: The second hollow frame (12) is fixedly connected to the mounting plate (13) by an electric telescopic rod, and a motor (14) is provided on the side of the mounting plate (13), and the output shaft of the motor (14) is fixedly connected to the threaded rod (15).

8. A bag-making machine cutter capable of rapid blade switching according to claim 1, characterized in that: The cleaning block (16) is slidably connected to the second limiting rod (17), and one end of the second limiting rod (17) is fixedly connected to the mounting plate (13), and the other end of the second limiting rod (17) is fixedly connected to the connecting plate. Moreover, the connecting plate of the second limiting rod (17) is slidably connected to the connecting frame (4).

9. A bag-making machine cutter capable of rapid blade switching according to claim 8, characterized in that: A collection groove (18) is provided on the lower side of the cleaning block (16), and the collection groove (18) is symmetrical about the vertical central axis of the cleaning block (16).