Plastic woven bag joint cutting device

Abstract

The utility model discloses a plastic woven bag joint cutting device, which relates to the technical field of plastic woven bag processing, and comprises a joint cutting machine and a support, the support is fixed on the joint cutting machine, an air cylinder is fixed on the support, a connecting sleeve is fixed at the telescopic end of the air cylinder, and a tool bit is arranged in the connecting sleeve; and the mounting structure comprises a square box fixed to the connecting sleeve and a clamping groove formed in the top of the tool bit, the top of the square box is rotationally connected with a bolt through a bearing, the bottom of the bolt is in threaded connection with a clamping block moving up and down along the inner wall of the square box, and the clamping block is inserted into the clamping groove to achieve mounting and fixing of the tool bit. Through the arrangement of the connecting sleeve, the connecting sleeve and the cutter head jointly form the cutter, the cutter head is fixed in the connecting sleeve through the installation structure, the cutter head can be replaced independently, the whole cutter does not need to be replaced, and therefore the replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic woven bag processing, in particular to a plastic woven bag cutting device. Background Art

[0002] A plastic woven bag is a bag used for packaging and transportation, usually made of materials such as polypropylene (PP) or polyethylene (PE). Plastic woven bags often need to be cut and sewn during the production process. A cutting machine is required for cutting and sewing. After the plastic woven bag is unrolled, it passes through the knife head position and the knife head cuts the long strip of plastic woven bag. Then it passes through the sewing machine, which sews the opening at its end to form a plastic woven bag.

[0003] To this end, the patent with publication number CN219360455U discloses a plastic woven bag cutting device, including a cutting device body, a material discharging rack, a rotating shaft, a cutting table, a first telescopic cylinder, a cutter head, a conveying device, and a sewing device. The utility model installs a lifting mechanism and a sliding mechanism at the rear end of the left side of the cutting device body. According to the different specifications of the plastic woven bag models, the driving motor is turned on. After the driving motor is turned on, the screw rod rotates to drive the sliding member to slide left and right along the screw rod. The pulley mechanism slides left and right along the connecting frame. After the pulley mechanism is slid to a position suitable for fixing the woven bag, the conveying device is turned on. The sliding mechanism cooperates with the conveying device to convey the woven bag to the sewing place. This process avoids deviation during the conveying process due to different sizes of woven bags, thereby causing deviations in the sewing results. If the thickness of the cut woven bag is thicker, the pulley mechanism can be raised and lowered by turning on the second telescopic cylinder to fix the woven bag.

[0004] The above patent utilizes a first telescopic cylinder to drive the cutter head to move downward to cut the plastic woven bag, but the cutter head will become blunt after long-term use and needs to be replaced after multiple grindings. When replacing, the entire cutter is usually replaced. The cutter head cannot be replaced separately, and the replacement cost needs to be reduced. Utility Model Content

[0005] The utility model provides a plastic woven bag cutting device, which has the advantage of reducing replacement cost and solves the problems raised in the background technology.

[0006] In order to achieve the purpose of reducing replacement costs, the utility model provides the following technical solutions: a plastic woven bag cutting device, including a cutting machine, and also including:

[0007] A bracket, wherein the bracket is fixed on the seam cutter, a cylinder is fixed on the bracket, a connecting sleeve is fixed on the telescopic end of the cylinder, and a cutter head is arranged in the connecting sleeve;

[0008] The mounting structure includes a square box fixed on the connecting sleeve and a slot opened on the top of the cutter head. The top of the square box is rotatably connected to a bolt through a bearing. The bottom of the bolt is threadedly connected to a block that moves up and down along the inner wall of the square box. The block is inserted into the slot to realize the installation and fixation of the cutter head.

[0009] As a preferred technical solution of the utility model, a positioning block is fixed in the connecting sleeve, and the side surface of the positioning block is in contact with the end of the cutter head to achieve the positioning of the cutter head.

[0010] As a preferred technical solution of the utility model, reinforcing ribs are fixed on the surface of the connecting sleeve to improve the deformation resistance of the connecting sleeve.

[0011] As a preferred technical solution of the present utility model, the inner wall of the connecting sleeve is provided with a slope 1 for improving the fixing stability of the cutter head in the front-rear direction.

[0012] As a preferred technical solution of the utility model, a guide block is fixed to the inner wall of the square box, and the inner wall of the guide groove opened on the side of the clamping block is slidably connected to the surface of the guide block.

[0013] As a preferred technical solution of the utility model, the distance from the upper surface of the card block to the upper surface of the inner wall of the square box is greater than the depth of the card block inserted into the card slot.

[0014] As a preferred technical solution of the utility model, the inner wall of the slot is provided with a second inclined surface for improving the fixing stability of the cutter head in the left and right directions.

[0015] Compared with the prior art, the utility model provides a plastic woven bag cutting device, which has the following beneficial effects:

[0016] 1. The plastic woven bag cutting and slitting device, through the setting of the connecting sleeve, the connecting sleeve and the cutter head together form a cutter, the cutter head is fixed in the connecting sleeve through the mounting structure, the cutter head can be replaced separately, and there is no need to replace the entire cutter, thereby reducing the replacement cost.

[0017] 2. The plastic woven bag cutting and slitting device has an installation structure, and the cutter head can be fixed by inserting the card block into the card slot, and the cutter head can be removed by separating the card block from the card slot. The operation is simple, thereby making the disassembly and assembly of the cutter head more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the cutter head of the utility model;

[0020] Figure 3This is an enlarged view of the structure of the clamping block of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the reinforcing rib of the utility model.

[0022] In the figure: 1. seam cutter; 2. bracket; 3. cylinder; 4. connecting sleeve; 5. mounting structure; 51. clamping block; 52. square box; 53. bolt; 54. clamping groove; 55. guide block; 6. cutter head; 7. reinforcing rib; 8. positioning block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model discloses a plastic woven bag cutting device, comprising a cutting machine 1, and also comprising:

[0025] The bracket 2 is fixed on the seam cutter 1. A cylinder 3 is fixed on the bracket 2. The number of the cylinders 3 is two and they are used to drive the connection sleeve 4 to rise and fall. The connection sleeve 4 is fixed on the telescopic end of the cylinder 3. A cutter head 6 is arranged in the connection sleeve 4. The bottom of the cutter head 6 has a cutting edge for cutting the plastic woven bag.

[0026] The mounting structure 5 includes a square box 52 fixed on the connecting sleeve 4 and a card slot 54 opened on the top of the cutter head 6. There are two square boxes 52, both of which are fixed on the top of the connecting sleeve 4. The top of the square box 52 is rotatably connected with a bolt 53 through a bearing. The bolt 53 can only rotate but not move through the bearing. The bottom of the bolt 53 is threadedly connected with a card block 51 that moves up and down along the inner wall of the square box 52. A threaded groove is opened on the card block 51. The inner wall of the threaded groove is threadedly connected to the surface of the bolt 53. The card block 51 is inserted into the card slot 54 to realize the installation and fixation of the cutter head 6.

[0027] Specifically, a positioning block 8 is fixed in the connecting sleeve 4 , and the side surface of the positioning block 8 is in contact with the end of the cutter head 6 to achieve positioning of the cutter head 6 .

[0028] In this implementation plan, please refer to Figure 3 The end of the cutter head 6 is fitted with the side of the positioning block 8 to achieve the positioning of the cutter head 6 in the left and right directions.

[0029] Specifically, a reinforcing rib 7 is fixed on the surface of the connecting sleeve 4 to improve the anti-deformation capability of the connecting sleeve 4 .

[0030] In this implementation plan, please refer to Figure 4 There are multiple reinforcing ribs 7 fixed on the connecting sleeve 4 to improve the structural strength of the connecting sleeve 4, thereby improving the deformation resistance of the connecting sleeve 4.

[0031] Specifically, the inner wall of the connecting sleeve 4 is provided with a slope 1 for improving the fixing stability of the cutter head 6 in the front-rear direction.

[0032] In this implementation plan, please refer to Figure 4 The inclined surface of the cutter head 6 is closely fitted with the inclined surface of the inner wall of the connecting sleeve 4, so as to realize the positioning of the cutter head 6 in the front-back direction, thereby making the fixation of the cutter head 6 more stable and firm.

[0033] Specifically, a guide block 55 is fixed to the inner wall of the square box 52 , and the inner wall of the guide groove provided on the side of the clamping block 51 is slidably connected to the surface of the guide block 55 .

[0034] In this implementation plan, please refer to Figure 3 When the clamping block 51 moves, it moves along the surface of the guide block 55 . The guide block 55 guides the clamping block 51 , so that the vertical movement of the clamping block 51 is more stable and smooth.

[0035] Specifically, the distance from the upper surface of the card block 51 to the upper surface of the inner wall of the square box 52 is greater than the depth of the card block 51 inserted into the card slot 54 .

[0036] In this implementation plan, please refer to Figure 3 , ensuring that the block 51 can be completely separated from the slot 54 after moving upward, thereby not affecting the normal disassembly of the cutter head 6.

[0037] Specifically, the inner wall of the slot 54 is provided with a second inclined surface for improving the fixing stability of the cutter head 6 in the left-right direction.

[0038] In this implementation plan, please refer to Figure 3 The inclined surface at the bottom of the block 51 fits tightly with the inclined surface at the bottom of the inner wall of the slot 54, so that the positioning of the cutter head 6 in the left and right directions can be achieved.

[0039] Working principle and use process of the utility model: the connecting sleeve 4 and the cutter head 6 together form a cutter. When the cutter head 6 is removed, the bolt 53 is rotated to make the clamping block 51 move upward along the inner wall of the square box 52, and the clamping block 51 moves upward and separates from the clamping groove 54. After separation, the cutter head 6 can be pulled out of the connecting sleeve 4 to realize the removal of the cutter head 6.

[0040] Insert the new cutter head 6 into the connecting sleeve 4 from the side thereof, and make the side of the cutter head 6 fit with the positioning block 8. At this time, the slot 54 on the cutter head 6 corresponds to the position of the block 51. Then, rotate the bolt 53 in the opposite direction to make the block 51 move downward and insert it into the slot 54. The block 51 squeezes the cutter head 6 so that the cutter head 6 fits tightly with the inner wall of the connecting sleeve 4 to achieve the positioning of the cutter head 6 in the front-to-back direction. At the same time, the inclined surface at the bottom of the block 51 fits tightly with the inclined surface at the bottom of the inner wall of the slot 54 to achieve the positioning of the cutter head 6 in the left-right direction, thereby completing the installation and fixation of the cutter head 6.

[0041] After the cutter head 6 is installed, the cylinder 3 fixed on the bracket 2 can drive the connecting sleeve 4 to move downward, and the connecting sleeve 4 drives the cutter head 6 to move downward to cut the plastic woven bag.

[0042] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic woven bag cutting device, comprising a cutting machine (1), characterized in that: Also includes: A bracket (2), the bracket (2) being fixed on the seam cutting machine (1), a cylinder (3) being fixed on the bracket (2), a connecting sleeve (4) being fixed at the telescopic end of the cylinder (3), and a cutting head (6) being arranged in the connecting sleeve (4); The mounting structure (5) comprises a square box (52) fixed on the connecting sleeve (4) and a clamping groove (54) provided on the top of the cutter head (6); the top of the square box (52) is rotatably connected to a bolt (53) via a bearing; the bottom of the bolt (53) is threadedly connected to a clamping block (51) that moves up and down along the inner wall of the square box (52); the clamping block (51) is inserted into the clamping groove (54) to achieve the installation and fixation of the cutter head (6).

2. A plastic woven bag cutting device according to claim 1, characterized in that: A positioning block (8) is fixed inside the connecting sleeve (4), and the side surface of the positioning block (8) is in contact with the end of the cutter head (6) to achieve positioning of the cutter head (6).

3. A plastic woven bag cutting device according to claim 1, characterized in that: A reinforcing rib (7) is fixed on the surface of the connecting sleeve (4) to improve the anti-deformation capability of the connecting sleeve (4).

4. A plastic woven bag cutting device according to claim 1, characterized in that: The inner wall of the connecting sleeve (4) is provided with an inclined surface 1, which is used to improve the fixing stability of the cutter head (6) in the front-rear direction.

5. A plastic woven bag cutting device according to claim 1, characterized in that: A guide block (55) is fixed to the inner wall of the square box (52), and the inner wall of the guide groove provided on the side of the clamping block (51) is slidably connected to the surface of the guide block (55).

6. A plastic woven bag cutting device according to claim 1, characterized in that: The distance between the upper surface of the card block (51) and the upper surface of the inner wall of the square box (52) is greater than the depth of the card block (51) inserted into the card slot (54).

7. A plastic woven bag cutting device according to claim 1, characterized in that: The inner wall of the clamping groove (54) is provided with a second inclined surface for improving the fixing stability of the cutter head (6) in the left-right direction.

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