Positioning and cutting device for plastic bag production

Abstract

The utility model relates to the field of plastic bag production, and discloses a plastic bag production positioning and cutting device which comprises a working table, a feeding mechanism is arranged at the top of the working table and comprises a driving motor, the driving motor is fixedly installed at the top of the working table, a cutting mechanism is arranged at the top of the working table, and the cutting mechanism is fixedly installed at the top of the working table. The cutting mechanism comprises two sets of mounting frames, the two sets of mounting frames are fixedly mounted at the top of the workbench, a collecting groove is formed in the position, close to the right side, of the top of the workbench, and a collecting box is fixedly connected to the right side of the workbench. According to the plastic bag cutting device, the stepping motor works to drive the reciprocating lead screw to rotate, so that when the cutting tool bit moves downwards to cut a plastic bag, the plastic bag can be extruded and flattened by the pressing plate, and the pressing plate cannot move relative to the plastic bag, so that the possibility that the plastic bag is damaged is reduced, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastic bag production, especially to a plastic bag production positioning cutting device. BACKGROUND

[0002] People usually need to use packaging bags when shopping. Currently, when shopping in shopping malls, supermarkets and markets, the purchased items are conveniently carried, and the plastic bags with rolls are commonly used shopping bags in supermarkets. When producing plastic bags, the plastic bags need to be cut off for the convenience of separation between two plastic bags, so plastic bag cutting equipment is needed to cut them to the appropriate size.

[0003] After searching, the Chinese patent publication No. CN219769246U discloses a plastic bag production cutting device convenient to use, which comprises an operating table, the top of the operating table is fixedly connected with a support, the outer side of the support is provided with a cutting part, the cutting part comprises a first hydraulic rod, a connecting block and a cutter, the first hydraulic rod is fixed at the top of the support, the connecting block is fixedly connected with the piston rod of the first hydraulic rod, the cutter is fixed at the bottom of the connecting block, the outer side of the connecting block is provided with a limiting part, the limiting part comprises a clamping rod and a clasp spring, the clamping rod is rotatably connected to the outer side of the connecting block, one end of the clasp spring is fixedly connected to the bottom of the connecting block, and the other end of the clasp spring is fixedly connected with the clamping rod.

[0004] The patent clamps the plastic bag through the clamping rod, the first hydraulic rod continues to move downward to make the cutter contact and cut the plastic bag, when the cutter contacts the plastic bag, the clamping rod drives the clasp spring to contract, which reduces the height of the clamping rod, improves the clamping firmness of the plastic bag, completes the limiting and fixing of the plastic bag, and avoids affecting the cutting quality of the plastic bag. However, the clamping rod is hinged to the connecting block, and when the cutter moves downward to drive the clamping rod and the plastic bag to contact, the clamping rod continues to move downward, which generates a pushing force towards the two sides of the plastic bag. The plastic bag may be pulled by the clamping rod and damaged, resulting in a decrease in the production quality of the plastic bag. Therefore, a plastic bag production positioning cutting device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a plastic bag production positioning cutting device, which aims to improve the problem of "the clamping rod may pull and damage the plastic bag when rotating towards the two sides, affecting the quality" in the prior art.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a plastic bag production positioning cutting device, including the workstation, the top of workstation is provided with the feeding mechanism, the feeding mechanism includes the drive motor, the drive motor fixed mounting is at the top of workstation, the top of workstation is provided with cutting mechanism, the cutting mechanism includes the mounting frame, the number of mounting frame is provided with two groups, two groups mounting frame all are fixedly installed at the top of workstation, the position of the top of workstation is close to the right side and is provided with the collecting groove, the right side of workstation is fixedly connected with the collecting box.

[0007] As further description of the above technical scheme:

[0008] The feeding mechanism further includes a fixed plate and a driving roller, the fixed plate is fixedly installed on the top of the workbench, the driving roller is rotatably installed on the inner wall of the fixed plate, the front end of the driving roller is fixedly connected with the output shaft of the driving motor, and the circumferential surface of the driving roller is fixedly connected with a gear one.

[0009] As further description of the above technical scheme:

[0010] The feeding mechanism further includes a driven roller, the driven roller is rotatably installed on the inner wall of the fixed plate, the circumferential surface of the driven roller is fixedly connected with a gear two, and the gear one and the gear two are engaged.

[0011] As further description of the above technical scheme:

[0012] The cutting mechanism further includes a stepping motor and a reciprocating screw rod, the stepping motor is fixedly installed on the right side of the mounting frame, the reciprocating screw rod is rotatably installed on the inner wall of the mounting frame, and the right end of the reciprocating screw rod is fixedly connected with the left end of the stepping motor.

[0013] As further description of the above technical scheme:

[0014] The cutting mechanism further includes a sliding block, the sliding block is slidably installed on the circumferential surface of the reciprocating screw rod, and the bottom of the sliding block is fixedly connected with an arc block.

[0015] As further description of the above technical scheme:

[0016] The cutting mechanism further includes a side plate, the side plate is fixedly installed on the side of the two groups of mounting frames close to each other, the number of side plates is two groups, and the sliding block slides on the side of the two groups of side plates close to each other.

[0017] As further description of the above technical scheme:

[0018] The cutting mechanism further comprises a protruding block, a cutting tool is fixedly connected to the bottom of the protruding block, a cutting head is fixedly connected to the bottom of the cutting tool, a plug rod is fixedly connected to the bottom of the cutting tool, the plug rod is slidingly installed on the inner wall of the workbench, the bottom of the cutting tool is elastically connected to the top of the workbench through a spring one, and the spring one is sleeved on the outer wall of the plug rod.

[0019] As a further description of the above technical solutions:

[0020] The cutting mechanism further comprises a pressing plate, a sliding rod is fixedly connected to the top of the pressing plate, the sliding rod is slidingly installed on the inner wall of the cutting tool, and the sliding rod is elastically connected to the inner wall of the cutting tool through a spring two.

[0021] The utility model has the advantages of:

[0022] 1、 the utility model discloses, through the step motor work drive reciprocating screw rod rotation, and then make cutting head move down and cut plastic bag, and plastic bag will be pressed and flattened by pressing plate, and the pressing plate will not displace relative to plastic bag, thereby reduce the possibility of plastic bag damage, improve product quality.

[0023] 2、 the utility model discloses, through the step motor work drive sliding block in left and right direction reciprocating linear motion, and then make cutting head reciprocating linear motion in the up and down reverse, can carry out automatic continuous cutting to plastic bag, improve work efficiency and cutting quality. DRAWINGS

[0024] Figure 1 It is the whole three-dimensional structure schematic diagram in the utility model;

[0025] Figure 2 It is the three-dimensional structure schematic diagram of feeding mechanism in the utility model;

[0026] Figure 3 It is the three-dimensional explosion structure schematic diagram of cutting mechanism in the utility model;

[0027] Figure 4 It is the three-dimensional structure section schematic diagram of cutting tool, cutting head, pressing plate, sliding rod, spring two in the utility model.

[0028] Legend:

[0029] 1, workbench; 2, drive motor; 3, fixed plate; 4, driving roller; 5, driven roller; 6, gear one; 7, gear two; 8, mounting frame; 9, stepping motor; 10, reciprocating screw; 11, sliding block; 12, arc block; 13, side plate; 14, protruding block; 15, cutting tool; 16, cutting bit; 17, insertion rod; 18, spring one; 19, pressing plate; 20, slide rod; 21, spring two; 22, collection groove; 23, collection box. DETAILED DESCRIPTION

[0030] 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 protection scope of the utility model.

[0031] With reference to Figure 1 With reference to Figure 2 An embodiment provided by the utility model: a plastic bag production positioning and cutting device, comprising a workbench 1, the workbench 1 plays the role of support, has good streamline, facilitates staff to use, the top of workbench 1 is provided with a feeding mechanism, the feeding mechanism includes drive motor 2, drive motor 2 is used to provide power, drive motor 2 is set as servo motor, can accurately control the rotation angle of its output shaft, facilitates staff to accurately control the speed of feeding, improves the quality of cutting, drive motor 2 is fixedly installed at the top of workbench 1, the top of workbench 1 is provided with a cutting mechanism, the cutting mechanism includes mounting frame 8, mounting frame 8 is used to play the role of supporting the cutting mechanism, improves stability, the number of mounting frame 8 is set to two groups, two groups of mounting frame 8 are all fixedly installed at the top of workbench 1, the top of workbench 1 is close to the position of right side and is provided with collection groove 22.Collection groove 22 is set as inclined plane, the waste produced after cutting is slid into the collection box 23 in the right side via the inclined plane, can guarantee the clean and neat of workbench 1, the right side of workbench 1 is fixedly connected with the collection box 23 for collecting the waste produced after cutting plastic bag, facilitates the centralized treatment of waste.

[0032] With reference to Figure 2The feeding mechanism further comprises a fixed plate 3 and a driving roller 4, the fixed plate 3 is fixedly installed on the top of the workbench 1, the fixed plate 3 is vertically arranged, the driving roller 4 is rotatably installed on the inner wall of the fixed plate 3, the driving roller 4 is arranged as a horizontally arranged cylinder, the front end of the driving roller 4 is fixedly connected with the rear end of the output shaft of the driving motor 2, the driving motor 2 drives the driving roller 4 to rotate, the circumferential surface of the driving roller 4 is fixedly connected with a gear one 6, the feeding mechanism further comprises a driven roller 5, the driven roller 5 is rotatably installed on the inner wall of the fixed plate 3, the driven roller 5 is arranged as a horizontally arranged cylinder, through the extrusion and rotation of the driven roller 5 and the driving roller 4, the plastic bag is flattened and sent into the working range of the cutting mechanism, the circumferential surface of the driven roller 5 is fixedly connected with a gear two 7, the gear one 6 and the gear two 7 are engaged, the driving motor 2 drives the gear two 7 to rotate through the gear one 6, and the rotating directions of the gear one 6 and the gear two 7 are opposite.

[0033] With reference to Figure 1 , Figure 3 The cutting mechanism further comprises a stepping motor 9 and a reciprocating screw rod 10, the stepping motor 9 is fixedly installed on the right side of the mounting frame 8, the stepping motor 9 can accurately control the rotating angle of the output shaft, which is convenient for adjusting the speed and frequency of cutting, and can be adjusted according to different production needs, and has good adaptability, the reciprocating screw rod 10 is rotatably installed on the inner wall of the mounting frame 8, the right end of the reciprocating screw rod 10 is fixedly connected with the left end of the stepping motor 9, and the stepping motor 9 drives the reciprocating screw rod 10 to rotate, the cutting mechanism further comprises a sliding block 11, the sliding block 11 is slidably installed on the circumferential surface of the reciprocating screw rod 10, the sliding direction of the sliding block 11 is left-right sliding, the bottom of the sliding block 11 is fixedly connected with an arc block 12, the bottom of the arc block 12 is provided with an arc surface, the cutting mechanism further comprises a side plate 13, the side plate 13 is arranged in a strip plate shape, the side plate 13 is fixedly installed on one side of the two groups of mounting frames 8 close to each other, the number of the side plates 13 is two, the sliding block 11 slides on one side of the two groups of side plates 13 close to each other, and the reciprocating screw rod 10 drives the sliding block 11 to make reciprocating linear motion in the axial direction of the reciprocating screw rod 10, the sliding block 11 is limited by the side plates 13, the accuracy of the displacement of the sliding block 11 is improved, the sliding block 11 makes more accurate linear motion, and the accuracy of cutting is improved.

[0034] With reference to Figure 3 - Figure 4The cutting mechanism further comprises a protrusion 14, the top of the protrusion 14 is in contact with the bottom of the arc-shaped block 12, the bottom of the protrusion 14 is fixedly connected with a cutting tool 15 for mounting a cutting head 16 at the bottom, the bottom of the cutting tool 15 is fixedly connected with the cutting head 16 for cutting the plastic bag, the bottom of the cutting tool 15 is fixedly connected with a vertically arranged insertion rod 17, the insertion rod 17 is slidingly installed on the inner wall of the workbench 1, the sliding direction of the insertion rod 17 is up and down, the insertion rod 17 makes the cutting tool 15 more stable and accurate when it is displaced, reduces the deviation when the cutting tool 15 cuts, the bottom of the cutting tool 15 is elastically connected with the top of the workbench 1 through a spring I 18, the spring I 18 applies an upward elastic force to the cutting tool 15, the spring I 18 is sleeved on the outer wall of the insertion rod 17, the cutting mechanism further comprises a pressing plate 19, the bottom surface of the pressing plate 19 is higher than the bottom surface of the cutting head 16 in the horizontal position, the pressing plate 19 is used for flattening the plastic bag, reducing the possibility of tearing and damaging the plastic bag by the transverse shearing force when cutting, the top of the pressing plate 19 is fixedly connected with a sliding rod 20, the sliding rod 20 is slidingly installed on the inner wall of the cutting tool 15, the sliding direction of the sliding rod 20 is up and down, the sliding rod 20 is elastically connected with the inner wall of the cutting tool 15 through a spring II 21, the spring II 21 applies a downward elastic force to the sliding rod 20.

[0035] Working principle: in use, the power of the driving motor 2 is started, the driving motor 2 works to drive the driving roller 4 to rotate, the driving roller 4 rotates to drive the gear I 6 to rotate, the gear I 6 rotates to drive the gear II 7 to rotate in the opposite direction, and then drives the driven roller 5 to rotate, the driving roller 4 and the driven roller 5 rotate to flatten and convey the plastic bag to the position of the cutting mechanism.

[0036] After the plastic bag is flattened and fed by the feeding mechanism, the power of the stepping motor 9 is started, the stepping motor 9 works to drive the reciprocating screw rod 10 to rotate, the reciprocating screw rod 10 rotates to drive the sliding block 11 to make reciprocating linear motion in the left and right directions, and then drives the arc-shaped block 12 to make reciprocating linear motion in the left and right directions, when the arc-shaped block 12 moves, the arc-shaped surface of the arc-shaped block 12 will extrude the protrusion 14, so that the cutting tool 15 at the bottom of the protrusion 14 moves downward against the elastic force of the spring I 18, when the arc-shaped block 12 moves to the concave part of the arc-shaped surface and contacts the top of the protrusion 14, the cutting tool 15 moves upward to reset under the action of the elastic force of the spring I 18, thus the stepping motor 9 works to drive the sliding block 11 to continuously displace, so that the cutting tool 15 continuously makes reciprocating linear motion in the up and down directions, thus realizing automatic continuous cutting, which can work continuously without manual intervention, the cut plastic bag waste slides into the collection box 23 through the collection groove 22, which is convenient for centralized collection and treatment.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A positioning and cutting device for the production of plastic bags, comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with a feeding mechanism, the feeding mechanism comprises a driving motor (2), the driving motor (2) is fixedly installed on the top of the workbench (1), the top of the workbench (1) is provided with a cutting mechanism, the cutting mechanism comprises a mounting frame (8), the number of mounting frames (8) is set to two groups, two groups of mounting frames (8) are fixedly installed on the top of the workbench (1), the top of the workbench (1) is provided with a collecting groove (22) near the right side, and the right side of the workbench (1) is fixedly connected with a collecting box (23).

2. A device for positioning and cutting plastic bags according to claim 1, characterized in that: The feeding mechanism further comprises a fixed plate (3) and a driving roller (4), the fixed plate (3) is fixedly installed on the top of the workbench (1), the driving roller (4) is rotatably installed on the inner wall of the fixed plate (3), the front end of the driving roller (4) is fixedly connected with the output shaft of the driving motor (2), and the circumferential surface of the driving roller (4) is fixedly connected with a gear one (6).

3. A device for positioning and cutting plastic bags according to claim 2, characterized in that: The feeding mechanism further comprises a driven roller (5), the driven roller (5) is rotatably installed on the inner wall of the fixed plate (3), the circumferential surface of the driven roller (5) is fixedly connected with a gear two (7), and the gear one (6) and the gear two (7) are engaged.

4. The apparatus of claim 1 wherein: The cutting mechanism further comprises a stepping motor (9) and a reciprocating lead screw (10), the stepping motor (9) is fixedly installed on the right side of the mounting frame (8), and the reciprocating lead screw (10) is rotatably installed on the inner wall of the mounting frame (8).

5. A device for positioning and cutting plastic bags according to claim 4, characterized in that: The cutting mechanism further comprises a sliding block (11), the sliding block (11) is slidably installed on the circumferential surface of the reciprocating lead screw (10), and the bottom of the sliding block (11) is fixedly connected with an arc block (12).

6. A device for positioning and cutting plastic bags according to claim 5, characterized in that: The cutting mechanism further comprises a side plate (13), the side plate (13) is fixedly installed on the side of the two groups of mounting frames (8) close to each other, the number of side plates (13) is set to two groups, and the sliding block (11) slides on the side of the two groups of side plates (13) close to each other.

7. A device for positioning and cutting plastic bags according to claim 1, characterized in that: The cutting mechanism further comprises a protruding block (14), the bottom of the protruding block (14) is fixedly connected with a cutting tool (15), the bottom of the cutting tool (15) is fixedly connected with a cutting bit (16), the bottom of the cutting tool (15) is fixedly connected with a plug rod (17), the plug rod (17) is slidably installed on the inner wall of the workbench (1), the bottom of the cutting tool (15) is elastically connected with the top of the workbench (1) through a spring one (18), and the spring one (18) is sleeved on the outer wall of the plug rod (17).

8. A device for positioning and cutting plastic bags according to claim 7, characterized in that: The cutting mechanism further comprises a pressing plate (19), the top of the pressing plate (19) is fixedly connected with a sliding rod (20), the sliding rod (20) is slidably installed on the inner wall of the cutting tool (15), and the sliding rod (20) is elastically connected with the inner wall of the cutting tool (15) through a spring two (21).

Images