Plastic packaging bag splitting machine

Abstract

The utility model discloses a plastic packaging bag dividing and cutting machine which comprises a bottom plate, a vertical plate, a wind-up roller, a dividing and cutting table, a top frame, a dividing and cutting knife, a lifting mechanism, a shifting mechanism, a pressing structure, a strip-shaped groove and a scale strip. The shifting mechanism comprises a vertical seat, a threaded rod, a driving motor, a guide rod, a nut block and a connecting rod; and the pressing structure comprises a pressing seat, a telescopic cylinder and a pressing plate. The plastic packaging bag slitting device belongs to the technical field of plastic packaging bag slitting, the slitting knife is driven to automatically ascend and descend by starting the lifting mechanism, and a plastic film unfolded below can be conveniently slit at the top of the slitting table; the driving motor is started to drive the threaded rod to rotate, so that the two groups of nut blocks are conveniently driven to translate to unfold and flatten the plastic film, and the plastic film corresponds to a scale strip on the slitting table for subsequent accurate slitting; the telescopic air cylinder is started to drive the pressing plate to move to press the edge of the plastic film to be slit so as to prevent the plastic film from falling off during tearing.

Description

TECHNICAL FIELD

[0001] The utility model belongs to plastic packaging bag slitting technical field, specifically point to a kind of plastic packaging bag slitting machine. BACKGROUND

[0002] Plastic packaging bag is very extensive due to its good waterproof and preservation characteristics, in daily life, many commodities are packaged using plastic packaging bags to ensure the integrity of the goods inside. Currently, in the process of making plastic packaging bags, a slitting machine is needed to slit the plastic film for subsequent processing into different specifications of plastic packaging bags.

[0003] The existing plastic packaging bag slitting is mostly directly uncoiling the plastic film and then slitting by cutter, but it is inconvenient to press the edge tightly to make it flat when uncoiling the plastic film, and it is also inconvenient to automatically shift and measure the scale to improve the precision of slitting different specifications of plastic film, therefore, there is an urgent need for a plastic packaging bag slitting machine to solve the above problems. SUMMARY

[0004] The technical problem to be solved by the utility model is that the edge is not pressed tightly and flat when slitting the current plastic packaging bag, and it is also inconvenient to automatically shift the edge of the plastic film and measure the scale for accurate slitting according to the slitting requirements of different specifications.

[0005] In order to realize the above functions, the technical scheme adopted by the utility model is as follows: a plastic packaging bag slitting machine, comprising a bottom plate, the opposite end of the bottom plate is fixedly connected with a stand, two groups of the stand are rotatably connected with a winding roller, two groups of the bottom plate are fixedly provided with a slitting table, the top of the slitting table is fixedly provided with a top frame, the slitting knife is slidably inserted into the top frame and located above the top wall of the slitting table, the top frame is fixedly provided with a lifting mechanism for driving the slitting knife to reciprocatingly lift and lower.

[0006] Two groups of the bottom plate are fixedly provided with a shifting mechanism, which can pull and move the plastic film wound on the winding roller, the shifting mechanism is provided with a pressing structure for pressing the edge of the plastic film.

[0007] In order to smoothly realize the purpose of automatically lifting the slitting knife, the lifting mechanism comprises a support plate fixedly connected with the top wall of the top frame, the top end of the side wall of the support plate is fixedly provided with a rotary motor, the output end of the rotary motor is connected with an eccentric wheel, and the eccentric wheel is eccentrically arranged with the rotary motor, the eccentric wheel is provided below with a support seat adhered thereto, the support seat is fixedly connected with a slide rod penetratingly and slidingly connected with the top wall of the top frame, the support seat is connected with the top wall of the top frame through a spring slidingly sleeved with the slide rod, and the top of the slitting knife is fixedly connected with the bottom of the slide rod.

[0008] In order to smoothly achieve the purpose of conveniently moving the rolled plastic film to be flat, the shifting mechanism comprises two groups of opposite fixed pedestals on the base plate, a threaded rod is rotatably arranged between the side walls of one group of the pedestals, a driving motor is fixedly arranged on one side wall of the pedestal to drive the threaded rod to rotate, a guide rod is fixedly arranged between the side walls of the other group of the pedestals, a nut block is threadedly connected to the threaded rod, and the other group of the nut blocks slide on the guide rod, a connecting rod is fixedly connected to the top of each of the two groups of the nut blocks, and the two groups of the connecting rods are located on both sides of the slitting table.

[0009] In order to smoothly achieve the purpose of conveniently pressing the edge of the plastic film, the pressing structure comprises two groups of pressing seats fixed between the connecting rods, a telescopic cylinder is arranged through the top wall of the pressing seat and fixedly connected to the pressing seat, a pressing plate is connected to the telescopic end of the telescopic cylinder, and the pressing plate is in contact with the plastic film on the bottom wall of the pressing seat after being elongated.

[0010] In order to smoothly achieve the purpose of conveniently measuring the length of the plastic film during slitting, a strip-shaped groove is arranged on the top wall of the slitting table near one end of the winding roller to support the slitting knife for lifting, and scale bars are arranged at both ends of the top wall of the slitting table.

[0011] As preferred, the slitting table is arranged in an inverted U shape, the cross section of the two groups of the pedestals is arranged in a U shape, and the cross section of the pressing seat is arranged in an inclined U shape.

[0012] The beneficial effects achieved by the above structure are as follows:

[0013] 1. The slitting knife is automatically lifted by opening the lifting mechanism, thereby facilitating the slitting of the plastic film expanded on the top of the slitting table.

[0014] 2. The threaded rod is rotated by opening the driving motor, thereby facilitating the translation of the two groups of nut blocks to expand and flatten the plastic film and corresponding to the scale bars on the slitting table for subsequent accurate slitting.

[0015] 3. The pressing plate is moved by opening the telescopic cylinder to press the edge of the plastic film to be cut to prevent the plastic film from falling off when being flattened. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structure diagram of a plastic packaging bag slitting machine is provided for the present scheme;

[0017] Figure 2 Another angle structure diagram of a plastic packaging bag slitting machine is provided for the present scheme;

[0018] Figure 3 A sectional view of a plastic packaging bag slitting machine is provided for the present scheme;

[0019] Figure 4Another angle sectional view of a plastic packaging bag slitting machine proposed in the scheme;

[0020] Figure 5 An enlarged view of part A in the scheme Figure 4

[0021] Wherein, 1, bottom plate; 2, vertical plate; 3, winding roller; 4, slitting table; 5, top frame; 6, slitting knife; 7, lifting mechanism; 71, support plate; 72, rotary motor; 73, eccentric wheel; 74, support seat; 75, sliding rod; 76, spring; 8, displacement mechanism; 81, vertical seat; 82, threaded rod; 83, drive motor; 84, guide rod; 85, nut block; 86, connecting rod; 9, compression structure; 91, compression seat; 92, telescopic cylinder; 93, compression plate; 11, strip-shaped groove; 12, scale bar.

[0022] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] As shown in Figures 1-2 In order to realize the above functions, the technical solutions adopted by the present application are as follows: a plastic packaging bag slitting machine, comprising a bottom plate 1, the bottom plate 1 is fixedly connected with a vertical plate 2 at one end, two groups of vertical plates 2 are rotatably connected with winding rollers 3 between them, the plastic film to be slitted is wound on the winding rollers 3, and the plastic film to be wound is unwound when the winding rollers 3 rotate, two groups of bottom plates 1 are fixedly provided with slitting tables 4 in inverted U-shaped arrangement, top frames 5 are fixedly arranged on the two side walls of the slitting tables 4 at one end and located above them, slitting knives 6 are slidingly inserted into the top frames 5 and located above the top walls of the slitting tables 4;

[0025] As shown in Figures 1-3 ​As shown, the top frame 5 is fixedly provided with a lifting mechanism 7 for driving the slitting knife 6 to reciprocatingly lift, the lifting mechanism 7 drives the slitting knife 6 to lift to automatically slit the plastic film spread on the slitting table 4, the lifting mechanism 7 comprises a support plate 71 fixedly connected to the top wall of the top frame 5, a rotary motor 72 is fixedly arranged at the top end of the side wall of the support plate 71, an eccentric wheel 73 is connected to the output end of the rotary motor 72 and is eccentrically arranged with the rotary motor 72, the eccentric wheel 73 is eccentrically rotated by turning on the rotary motor 72 during use, a support seat 74 is arranged below the eccentric wheel 73 and is attached to the eccentric wheel 73, the support seat 74 is pushed by the eccentric wheel 73 when the eccentric wheel 73 is eccentrically rotated, a sliding rod 75 is fixedly connected to the bottom wall of the support seat 74 and is slidingly connected to the top wall of the top frame 5, a spring 76 is connected between the bottom wall of the support seat 74 and the top wall of the top frame 5 and is slidingly sleeved with the sliding rod 75, the support seat 74 drives the sliding rod 75 to slide along the top frame 5, and the spring 76 drives the sliding rod 75 to reciprocatingly lift by stretching and rebounding, the slitting knife 6 is fixedly connected to the bottom of the sliding rod 75, so that the slitting knife 6 reciprocatingly lifts along with the sliding rod 75 to automatically slit the plastic film below;

[0026] As shown in Figures 1-2 , two groups of bottom plates 1 are fixedly provided with a displacement mechanism 8 for pulling and moving the plastic film wound on the winding roller 3, the displacement mechanism 8 comprises two groups of vertical seats 81 fixedly connected to the two groups of bottom plates 1 and arranged in a U-shaped cross section, a threaded rod 82 is rotatably arranged between the two side walls of one group of vertical seats 81, a drive motor 83 is fixedly arranged on one side wall of the vertical seat 81 and drives the threaded rod 82 to rotate, the other group of vertical seats 81 are fixedly provided with a guide rod 84 between the two side walls, a nut block 85 is threadedly connected to the threaded rod 82, and the other group of nut blocks 85 are slidingly arranged on the guide rod 84, the threaded rod 82 drives the nut blocks 85 to move by rotating, and the guide rod 84 limits the movement of the nut blocks 85 to synchronize the translation of the two groups of nut blocks 85, the top of the two groups of nut blocks 85 is fixedly connected with a connecting rod 86, and the two groups of connecting rods 86 are located on both sides of the slitting table 4, and the two groups of connecting rods 86 are automatically translated under the drive of the nut blocks 85;

[0027] As shown in Figure 1 , 4 and 5, the displacement mechanism 8 is provided with a compression structure 9 for compressing the edge of the plastic film, the compression structure 9 comprises two groups of compression seats 91 fixedly connected between the two groups of connecting rods 86 and arranged in an inclined U-shaped cross section, an extension cylinder 92 is penetratingly arranged in the top wall of the compression seat 91 and is fixedly connected to the compression seat 91, a compression plate 93 is connected to the extension end of the extension cylinder 92 and is attached to the plastic film on the bottom wall of the compression seat 91 after being extended, the extension cylinder 92 is turned on during use to drive the compression plate 93 to descend and compress the plastic film on the bottom wall of the compression seat 91, and the compression seat 91 moves under the translation of the two groups of connecting rods 86 to spread and flatten the compressed plastic film;

[0028] As shown in Figures 1-2As shown, the top wall of the slitting table 4 is provided with a strip-shaped groove 11 near one end of the winding roller 3 for supporting the slitting knife 6 for lifting and slitting the plastic film. The two ends of the top wall of the slitting table 4 are provided with scale bars 12. The position of the torn edge of the plastic film can be viewed in real time through the scale bars 12, so as to accurately measure the width of the torn plastic film to meet different slitting requirements.

[0029] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace, and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

[0031] The above describes the present application and its embodiments, which is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the creative purpose of the present application, without creative design, similar structure and embodiments of the technical solution can be designed, which should belong to the protection scope of the present application.

Claims

1. A plastic packaging bag slitting machine, comprising a bottom plate (1), opposite fixed connection of one end of the bottom plate (1) has a vertical plate (2), characterized in that: Two groups of the stand plate (2) are rotatably connected with the winding roller (3), two groups of the bottom plate (1) are fixedly provided with the slitting table (4), one end of the slitting table (4) is fixedly provided with the top frame (5) above the two side walls, the slitting cutter (6) is slidably inserted into the top frame (5) and located above the top wall of the slitting table (4), the lifting mechanism (7) for driving the slitting cutter (6) to reciprocatingly lift is fixedly arranged on the top frame (5); Two groups of the bottom plate (1) are fixedly provided with the displacement mechanism (8), which can pull and move the plastic film wound on the winding roller (3), the displacement mechanism (8) is provided with the compression structure (9) capable of compressing the edge of the plastic film.

2. The plastic packaging bag slitting machine according to claim 1, characterized in that: The lifting mechanism (7) comprises a support plate (71) fixedly connected to the top wall of the top frame (5), a rotary motor (72) fixedly arranged at the top end of the side wall of the support plate (71), an eccentric wheel (73) connected to the output end of the rotary motor (72) and eccentrically arranged with the rotary motor (72), a support seat (74) arranged below the eccentric wheel (73) and abutting the eccentric wheel (73), a slide rod (75) fixedly connected to the top wall of the top frame (5) and slidably connected to the bottom wall of the support seat (74), a spring (76) connected between the bottom wall of the support seat (74) and the top wall of the top frame (5) and slidably sleeved with the slide rod (75), and the top of the slitting cutter (6) is fixedly connected with the bottom of the slide rod (75).

3. The plastic packaging bag slitting machine according to claim 1, characterized in that: The displacement mechanism (8) comprises two groups of vertical seats (81) fixedly arranged on the two groups of bottom plates (1), a threaded rod (82) rotatably arranged between the two side walls of one group of the vertical seats (81), a drive motor (83) fixedly arranged on one side wall of the vertical seat (81) and driving the threaded rod (82) to rotate, a guide rod (84) fixedly arranged between the two side walls of the other group of the vertical seats (81), a threaded nut block (85) threadedly connected to the threaded rod (82) and the other group of the threaded nut block (85) slidably penetrating the guide rod (84), and a connecting rod (86) fixedly connected to the top of each of the two groups of the threaded nut block (85) and located beside the slitting table (4).

4. The plastic packaging bag slitting machine according to claim 3, characterized in that: The compression structure (9) comprises a compression seat (91) fixedly arranged between the two groups of connecting rods (86), a telescopic air cylinder (92) penetratingly arranged on the top wall of the compression seat (91) and fixedly connected thereto, and a compression plate (93) connected to the telescopic end of the telescopic air cylinder (92) and abutting and compressing the plastic film on the bottom wall of the compression seat (91) when the compression plate (93) is elongated.

5. The plastic packaging bag slitting machine according to claim 1, characterized in that: One end of the top wall of the slitting table (4) near the winding roller (3) is provided with a strip-shaped groove (11) for supporting the slitting cutter (6) lifting the plastic film, and the two ends of the top wall of the slitting table (4) are provided with scale bars (12) opposite to each other.

6. The plastic packaging bag slitting machine according to claim 4, characterized in that: The slitting table (4) is arranged in an inverted U shape, the cross section of the two groups of vertical seats (81) is arranged in a U shape, and the cross section of the compression seat (91) is arranged in an inclined U shape.

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