Paper-plastic bag cutting machine

Abstract

The utility model belongs to the technical field of paper-plastic bag processing, and particularly relates to a paper-plastic bag cutting machine which comprises a workbench, a cutting assembly and a positioning assembly, the cutting assembly and the positioning assembly are installed on the workbench, and the positioning assembly comprises a second air cylinder, a telescopic portion, a bottom plate, a lead screw, a nut, a connecting shaft, a pressing plate and a sliding frame. According to the size of a paper-plastic bag, the two sliding frames which are oppositely arranged are moved in advance, after the sliding frames move to preset positions, nuts on the lead screws are rotated, the connecting shafts are limited on the lead screws, the paper-plastic bag is placed on the placing table, the second driving air cylinder pushes the bottom plate to move downwards, the bottom plate synchronously drives the telescopic part to extend, and the paper-plastic bag is placed on the telescopic part. According to the paper-plastic bag cutting device, rapid adjustment and rapid positioning can be conveniently carried out according to the size of the paper-plastic bag, and the cutting efficiency of the paper-plastic bag is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper plastic bag processing technical field especially relates to a paper plastic bag cutting machine. BACKGROUND

[0002] Paper plastic bag is also called three-in-one composite paper bag, which is composed of plastic and kraft paper. The plastic layer is usually made of pp polypropylene (pp) as the base material of pp wire woven cloth, and the kraft paper is made of refined composite special kraft paper. The two are bonded by melting plastic hot laminating. The kraft paper laminated cloth is formed by bag making, and then processed and sewn into a three-in-one paper plastic bag.

[0003] During the cutting process of the paper plastic bag, the paper plastic bag raw material is usually placed directly on the workbench, and the cutting device is used to cut the paper plastic bag directly. During the placing process, the paper plastic bag is easy to deviate, which leads to the cutting of the paper plastic bag raw material not meeting the standard and the need for re-cutting, thereby affecting the overall processing efficiency. In addition, the limiting effect of the paper plastic bag is not very ideal, the paper plastic bag is easy to loosen, and the cutting is uneven, which leads to the decline of cutting quality. UTILITY MODEL CONTENT

[0004] The utility model aims at the defects of prior art, and provides a paper plastic bag cutting machine to solve the problems in the background art.

[0005] A paper plastic bag cutting machine, comprising a workbench, a cutting assembly and a positioning assembly installed on the workbench, the positioning assembly comprising a second air cylinder, an extension part, a bottom plate, a lead screw, a nut, a connecting shaft, a pressure plate and a sliding frame, the second air cylinder and the extension part are installed at the bottom of the placement table of the workbench, the bottom plate is installed at the bottom of the second air cylinder and the extension part, the extension part is four and is distributed at the four corners of the bottom plate, the lead screw is two and is arranged in parallel, and penetrates through the two extension parts on the same side, the sliding frame is two and is arranged on both sides of the placement table, the connecting shaft is arranged at the two ends of the lead screw and is limited on the lead screw by the nut, and penetrates through the slot at the lower end plate of the sliding frame and the workbench and extends upward, the pressure plate is installed at the top end of the two adjacent connecting shafts and can be arranged to move up and down along the sliding frame.

[0006] By adopting the above technical scheme, the device can quickly adjust and position according to the size of the paper plastic bag, thereby improving the cutting efficiency of the paper plastic bag.

[0007] The cutting assembly comprises a first air cylinder, a limiting rod and a cutter, the cutter is installed at the output end of the first air cylinder, and the limiting rod is fixed on both sides of the upper end face of the cutter and is arranged to slide up and down along the workbench.

[0008] By adopting the above technical scheme, the paper plastic bag can be cut conveniently.

[0009] The cutting groove is arranged in the middle of the workbench and is arranged directly below the cutter.

[0010] By adopting the above technical scheme, cutting is facilitated.

[0011] The telescopic part is composed of an outer cylinder and an inner column, the inner column slides along the inner wall of the outer cylinder, and the lead screw penetrates the inner column of the telescopic part.

[0012] By adopting the above technical scheme, the telescopic part is used for positioning the lead screw.

[0013] The bottom surface of the pressing plate is provided with a plurality of rubber pads, which are used for increasing the friction force for limiting the paper-plastic bag.

[0014] By adopting the above technical scheme, the paper-plastic bag is more stably limited.

[0015] The paper-plastic bag cutting machine has the following advantages:

[0016] According to the size of the paper-plastic bag, the two sliding frames are moved in advance, the nut on the rotating lead screw is moved to the predetermined position, the connecting shaft is limited on the lead screw, the sliding frame and the pressing plate are positioned at this time, the paper-plastic bag is placed on the placement table, the position to be cut is directly below the cutter, the bottom plate is driven downward by the second cylinder, the telescopic part is elongated synchronously by the bottom plate, the lead screw moves downward synchronously at this time, the connecting shaft moves downward by the lead screw, the pressing plate limits the paper-plastic bag by the connecting shaft, the cutter cuts the paper-plastic bag by the first cylinder, the device can be quickly adjusted according to the size of the paper-plastic bag, the cutting efficiency of the paper-plastic bag is improved by quick positioning, and the paper-plastic bag is placed regularly, so that the cutting quality is not affected by the placement deviation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 The paper-plastic bag cutting machine is a whole structure schematic view of the paper-plastic bag cutting machine.

[0018] Fig. 2 The paper-plastic bag cutting machine is another view of the paper-plastic bag cutting machine.

[0019] In the figure: 1, workbench; 101, placement table; 1011, cutting groove; 1012, slot; 2, cylinder one; 3, limiting rod; 4, cutter; 5, cylinder two; 6, telescopic part; 7, bottom plate; 8, lead screw; 9, nut; 10, connecting shaft; 11, pressing plate; 12, sliding frame. DETAILED DESCRIPTION

[0020] The advantages and features of the present application can be more easily understood by those skilled in the art, and the protection scope of the present application can be more clearly defined, by the preferred embodiments of the present application in conjunction with the accompanying drawings.

[0021] Referring to Figs. 1-2 The cutting machine for paper-plastic bags comprises a workbench 1, a cutting assembly and a positioning assembly installed on the workbench 1, the positioning assembly comprises a second air cylinder 5, four telescopic parts 6, a bottom plate 7, two parallel screws 8, nuts 9, connecting shafts 10, pressing plates 11 and sliding frames 12, the second air cylinder 5 and the telescopic parts 6 are installed at the bottom of a placing table 101 of the workbench 1, the bottom plate 7 is installed at the bottom of the second air cylinder 5 and the telescopic parts 6, the telescopic parts 6 are distributed at four corners of the bottom plate 7, the screws 8 are parallel to each other and penetrate through two telescopic parts 6 at the same side, the sliding frames 12 are two and are slidingly arranged at two sides of the placing table 101, the connecting shafts 10 are slidingly arranged at two ends of the screws 8 and are limited on the screws 8 by the nuts 9, and extend upwardly through a notch 1012 at the lower end plate of the sliding frame 12 and the workbench 1, and the pressing plates 11 are installed at the top end of the adjacent connecting shafts 10 and are arranged to move up and down along the sliding frames 12.

[0022] According to the size of the paper-plastic bag, the two opposite sliding frames 12 are moved in advance, the nuts 9 on the rotating screws 8 are removed, the connecting shafts 10 are limited on the screws 8, the sliding frames 12 and the pressing plates 11 are positioned at this time, the paper-plastic bag is placed on the placing table 101, the position to be cut is located directly below the cutter 4, the second air cylinder 5 is driven to push the bottom plate 7 to move downwardly, the bottom plate 7 drives the telescopic parts 6 to extend synchronously, the screws 8 move downwardly synchronously, the connecting shafts 10 move downwardly through the screws 8, and the pressing plates 11 drive the paper-plastic bag to be limited.

[0023] Then the first air cylinder 2 is driven to push the cutter 4 to cut the paper-plastic bag.

[0024] The device can be quickly adjusted according to the size of the paper-plastic bag, the cutting efficiency of the paper-plastic bag is improved by quick positioning.

[0025] The cutting assembly comprises a first air cylinder 2, a limiting rod 3 and a cutter 4, the cutter 4 is installed at the output end of the first air cylinder 2, the limiting rod 3 is fixed at the upper end surface of the cutter 4 and is arranged to move up and down along the workbench 1, a cutting groove 1011 is arranged in the middle of the workbench 1 and is arranged directly below the cutter 4, the cutter 4 cuts the paper-plastic bag by being driven, the cutting groove 1011 is arranged to place the cutting position of the paper-plastic bag in the cutting groove 1011, and the cutter 4 accurately cuts the paper-plastic bag.

[0026] The telescopic part 6 is composed of an outer cylinder and an inner column, the inner column slides along the inner wall of the outer cylinder, and the lead screw 8 penetrates the inner column of the telescopic part 6; since the two ends of the lead screw 8 are not in contact with the workbench 1 and are not fixed, the telescopic part 6 is used to fix the lead screw 8, the telescopic part 6 is fixedly connected with the lead screw 8, and the lead screw 8 can only move up and down, cooperating with the second air cylinder 5 to drive the pressing plate 11 to move up and down.

[0027] A plurality of rubber pad plates are installed at the bottom surface of the pressing plate 11, for increasing the friction force defined on the paper plastic bag; a plurality of rubber pad plates are arranged at the position defined on the paper plastic bag by the pressing plate 11, and the pressing plate 11 moves downward to clamp the paper plastic bag through the rubber pad plates and the cutting groove 1011, so as to facilitate subsequent cutting of the paper plastic bag.

[0028] The above-mentioned embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent range. It should be pointed out that, for ordinary skilled persons in the art, under the premise of not departing from the utility model concept, a plurality of modifications and improvements can be made, which belong to the protection range of the utility model.

Claims

1. A cutting machine for paper-plastic bags, comprising a worktable (1) and a cutting assembly and a positioning assembly mounted on the worktable (1), characterized in that: The positioning assembly comprises a second air cylinder (5), telescopic parts (6), a bottom plate (7), lead screws (8), nuts (9), connecting shafts (10), pressing plates (11) and sliding frames (12), the second air cylinder (5) and the telescopic parts (6) are both installed at the bottom of the placing table (101) of the workbench (1), the bottom plate (7) is installed at the bottom of the second air cylinder (5) and the telescopic parts (6), the telescopic parts (6) are four and are distributed at the four corners of the bottom plate (7), the lead screws (8) are two and are arranged in parallel, and respectively penetrate the two telescopic parts (6) on the same side, the sliding frames (12) are two and are slidingly arranged on the two sides of the placing table (101), the connecting shafts (10) are slidingly arranged at the two ends of the lead screws (8) and are limited on the lead screws (8) through the nuts (9), and extend upwardly through the lower end plates of the sliding frames (12) and the notches (1012) of the workbench (1), the pressing plates (11) are installed at the top end portions of the two adjacent connecting shafts (10) and are arranged to be movable up and down along the sliding frames (12).

2. The paper plastic bag cutting machine according to claim 1, characterized by: The cutting assembly comprises a first air cylinder (2), limiting rods (3) and cutters (4), the cutters (4) are installed at the output ends of the first air cylinders (2), and the limiting rods (3) are fixed at the two sides of the upper end face of the cutters (4) and are arranged to be slidingly movable up and down along the workbench (1).

3. The paper plastic bag cutting machine according to claim 2, characterized by: The workbench (1) is provided with a cutting groove (1011) in the middle, and the cutting groove (1011) is arranged directly below the cutter (4).

4. The paper plastic bag cutting machine according to claim 3, characterized by: The telescopic part (6) is composed of an outer cylinder and an inner column, and the inner column slides along the inner wall of the outer cylinder, and the lead screw (8) penetrates the inner column of the telescopic part (6).

5. The paper plastic bag cutting machine according to claim 4, characterized in that: A plurality of rubber pads are installed at the bottom surface of the pressing plate (11) to increase the friction force for limiting the paper plastic bag.

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