Packaging bag cutting device

Abstract

The utility model relates to the technical field of packaging bag production equipment, in particular to a packaging bag cutting device. Comprising a workbench, a first conveying belt and a second conveying belt, the first conveying belt and the second conveying belt are arranged on the workbench in a bilateral symmetry mode, a supporting block is fixedly arranged between the first conveying belt and the second conveying belt, and a cutting groove is formed in the top of the supporting block; a first pressing roller is rotatably installed above the ends, close to each other, of the first conveying belt and the second conveying belt, a supporting frame is fixedly installed above the middle of the workbench, a hydraulic cylinder is fixedly installed on the supporting frame, an installation base is fixedly installed at one end of the bottom of the hydraulic cylinder, and a cutter is fixedly installed at the bottom of the installation base. Second pressing rollers are symmetrically and rotationally installed on the left side and the right side of the cutter, and the height of the second pressing rollers can be automatically adjusted. The packaging bag cutting device is simple in structure, can automatically adjust the tension of a packaging bag in the cutting process, and avoids damage to the woven bag.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing bag production equipment technical field, specifically be a packing bag cutting device. BACKGROUND

[0002] The packing bag needs to be cut according to the specification of the packing bag during processing, and during cutting, the woven bag is relatively soft, so a certain tension needs to be applied to the woven bag to ensure the neatness of the cut.

[0003] A packing bag cutting device with publication number CN219837869U exists in the prior art, which comprises a workbench, a conveyor belt is arranged between the inner walls of the two sides of the workbench, first connecting plates are fixedly connected to the positions on the top of the two sides of the workbench, a second connecting plate is fixedly connected between the top of one side of the two first connecting plates, a cutting mechanism is arranged at the bottom of the second connecting plate, a pressing mechanism and a leveling mechanism are arranged at the bottom of the cutting mechanism, and a supporting mechanism is arranged at the bottom of the pressing mechanism.

[0004] The above-mentioned device has a complex structure, and the tension of the packing bag cannot be automatically adjusted during cutting, which causes the cutting knife to have excessive force on the packing bag during cutting, resulting in the packing bag being pulled and the contact position between the packing bag and the pressing plate being damaged. UTILITY MODEL CONTENTS

[0005] (I) Technical problem solved

[0006] In order to solve the above-mentioned problems of the prior art, the utility model provides a packing bag cutting device, which has a simple structure, can automatically adjust the tension of the packing bag during cutting, and avoids damaging the woven bag.

[0007] (II) Technical scheme

[0008] In order to achieve the above-mentioned purposes, the main technical scheme adopted by the utility model comprises:

[0009] A packing bag cutting device comprises a workbench, first and second conveyor belts arranged symmetrically on the left and right of the workbench, a supporting block fixedly arranged between the first and second conveyor belts, a cutting groove arranged at the top of the supporting block, supporting rollers symmetrically rotatably installed on the left and right sides of the cutting groove, first pressing rollers rotatably installed above the ends of the first and second conveyor belts, a supporting frame fixedly installed above the middle of the workbench, a hydraulic cylinder fixedly installed on the supporting frame, an installation seat fixedly installed at one end of the bottom of the hydraulic cylinder, a cutting knife fixedly installed at the bottom of the installation seat, second pressing rollers symmetrically rotatably installed on the left and right sides of the cutting knife, and the height of the second pressing rollers can be automatically adjusted. The device has a simple structure, can automatically adjust the tension of the packing bag during cutting, and avoids damaging the woven bag.

[0010] Preferably, the second compression roller is rotatably mounted between the fixing ears, a recess is formed at the bottom of the mounting seat, a spring is arranged in the recess, and a limiting block is arranged at one end of the top of the fixing ear.

[0011] Preferably, the second compression roller and the supporting roller are located in the same vertical plane.

[0012] (Three) beneficial effects

[0013] The packaging bag cutting device has the following beneficial effects:

[0014] (1) The packaging bag to be cut can be flattened and cut to ensure that the cut is neat.

[0015] (2) The packaging bag can be protected during cutting to avoid damage to the packaging bag. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a structural diagram of the utility model;

[0017] Fig. 2 is a front view of the utility model;

[0018] Fig. 3 is a fixing ear mounting structure diagram of the utility model.

[0019] In the drawing: 1, workbench; 2, first conveying belt; 3, second conveying belt; 4, supporting block; 5, cutting groove; 6, supporting roller; 7, first compression roller; 8, supporting frame; 9, hydraulic cylinder; 10, mounting seat; 11, cutting knife; 12, second compression roller; 13, fixing ear; 14, recess; 15, spring; 16, limiting block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] As Figs. 1-3As shown, the packaging bag cutting device of the embodiment comprises a workbench 1, a first conveying belt 2 and a second conveying belt 3 symmetrically arranged on the workbench 1, a support block 4 fixedly arranged between the first conveying belt 2 and the second conveying belt 3, a cutting groove 5 opened at the top of the support block 4, support rollers 6 symmetrically and rotatably installed on the left and right sides of the cutting groove 5, a first compression roller 7 rotatably installed above one end of the first conveying belt 2 and the second conveying belt 3 close to each other, a support frame 8 fixedly installed above the middle of the workbench 1, a hydraulic cylinder 9 fixedly installed on the support frame 8, a mounting seat 10 fixedly installed at one end of the bottom of the hydraulic cylinder 9, a cutter 11 fixedly installed at the bottom of the mounting seat 10, and second compression rollers 12 symmetrically and rotatably installed on the left and right sides of the cutter 11. The second compression rollers 12 are used in cooperation with the support rollers 6 to provide the required tension when the packaging bag is cut. The height of the second compression rollers 12 can be automatically adjusted.

[0022] Further, the second compression rollers 12 are rotatably installed between fixed ears 13, a recess 14 is opened at the bottom of the mounting seat 10, a spring 15 is arranged in the recess 14, a limiting block 16 is arranged at one end of the top of the fixed ear 13, and the limiting block 16 is located in the recess 14.

[0023] Further, the second compression rollers 12 and the support rollers 6 are located in the same vertical plane.

[0024] Working principle: when the packaging bag to be cut is conveyed by the second conveying belt 3 to above the first conveying belt 2 and reaches the specified cutting position, the hydraulic cylinder 9 drives the mounting seat 10 to move downward, when the mounting seat 10 moves downward, the second compression rollers 12 and the support rollers 6 press the packaging bag tightly, and the second compression rollers 12 and the support rollers 6 can be damping rotating rollers. When the mounting seat 10 continues to move downward, the second compression rollers 12 are no longer moved downward due to the limiting of the support rollers 6, and the second compression rollers 12 are pressed upward to deform the spring 15 due to the action of the support rollers 6, and the cutter 11 still continues to move downward. When the cutter 11 moves downward, the cutter 11 acts on the packaging bag to cut the packaging bag. If the cutter 11 moves downward too fast, the force of the cutter 11 acting on the packaging bag is too large, which causes the packaging bag to drive the second compression rollers 12 and the support rollers 6 to rotate, thereby buffering the force.

Claims

1. A packaging bag cutting device, comprising a workbench (1) and a first conveying belt (2) and a second conveying belt (3) symmetrically arranged on the workbench (1), characterized in that: Supporting block (4) is arranged between the first conveying belt (2) and the second conveying belt (3), a cutting groove (5) is arranged on the top of the supporting block (4), supporting rollers (6) are symmetrically arranged on the left and right sides of the cutting groove (5), first pressing rollers (7) are rotatably arranged on the top of the one end of the first conveying belt (2) and the second conveying belt (3), a supporting frame (8) is fixedly arranged on the top of the middle of the workbench (1), a hydraulic cylinder (9) is fixedly arranged on the supporting frame (8), a mounting seat (10) is fixedly arranged on the bottom of the hydraulic cylinder (9), a cutter (11) is fixedly arranged on the bottom of the mounting seat (10), second pressing rollers (12) are symmetrically rotatably arranged on the left and right sides of the cutter (11), and the height of the second pressing rollers (12) can be automatically adjusted.

2. The bag cutting apparatus of claim 1, wherein: Further comprising fixing ears (13), the second pressing rollers (12) are rotatably arranged between the fixing ears (13), a recess (14) is arranged on the bottom of the mounting seat (10), springs (15) are arranged in the recess (14), limiting blocks (16) are arranged on the top of the fixing ears (13), and the limiting blocks (16) are arranged in the recess (14).

3. The apparatus of claim 1, wherein: The second pressing rollers (12) and the supporting rollers (6) are located in the same vertical plane.

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