Plastic film patching device

Abstract

The utility model discloses a plastic film patching device which comprises a pair of side plates, and the side walls of the side plates are jointly and rotationally connected with an unwinding roller. The side walls of the pair of side plates are jointly and rotationally connected with a plurality of material guide rollers. Adjusting assemblies are installed on the inner side walls of the side plates. A fixing block is mounted on the adjusting assembly; the side wall of the fixing block is fixedly connected with a gluing mechanism. A fixing frame is fixedly connected to the side wall, away from the gluing mechanism, of the fixing block. A first motor is fixedly connected to the side wall of the fixing frame. The middle of the fixing frame is rotationally connected with a rotating shaft. The rotating shaft is fixedly connected to the output end of the first motor; a scraping plate is fixedly connected to the middle of the rotating shaft; the side walls of the pair of side plates are jointly and rotationally connected with a conveying belt. By means of the structure, the first motor is arranged to be connected with the rotating shaft and the scraping plate, glue dripped on a packaging bag can be scraped to be flat, and the situation that gaps exist between the patch and the packaging bag due to the fact that intervals exist between dot-shaped glue, and bonding is not uniform is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing bag production technical field, and specifically, it mainly relates to plastic film patch device. BACKGROUND

[0002] The packing bag refers to the bag for packing various articles, and is widely used in daily life and industrial production, and can facilitate transportation and storage in the production and circulation process, and can be made of plastic and composite materials, and a patching process is usually used in the production of some plastic packing bags.

[0003] In the patching of the plastic packing bag, a material is usually added in the production process of the packing bag to enhance the strength and stability of the packing bag or improve its function, and the plastic film is usually used as the base material for patching the packing bag, and in the long-term observation, it is found that the plastic packing bag is usually bonded to the packing bag body by using glue and hot pressing, and the glue is usually dropped on the packing bag body, and the glue is distributed in the form of dots after being dropped on the packing bag body, and then the glue is spread under the pressure during hot pressing, and the glue between the dots has a gap, which causes the packing bag to have a gap with the plastic film and causes uneven bonding. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a plastic film patch device.

[0005] The plastic film patch device disclosed by the utility model comprises a pair of side plates, a plurality of unwinding rollers are rotatably connected to the side walls of the pair of side plates, a plurality of material guiding rollers are rotatably connected to the side walls of the pair of side plates, an adjusting assembly is installed on the inner wall of the side plate, a fixing block is installed on the adjusting assembly, a glue applying mechanism is fixedly connected to the side wall of the fixing block, a fixing frame is fixedly connected to the side wall of the fixing block away from the glue applying mechanism, a first motor is fixedly connected to the side wall of the fixing frame, a rotating shaft is rotatably connected to the middle part of the fixing frame, the rotating shaft is fixedly connected to the output end of the first motor, a scraper is fixedly connected to the middle part of the rotating shaft, a conveying belt is rotatably connected to the side walls of the pair of side plates, a pressing assembly and a tension adjusting assembly are arranged on the side walls of the side plates, and the first motor is connected to the rotating shaft and the scraper.

[0006] Preferably, the adjusting assembly comprises a second motor; the second motor is fixedly connected to the side wall of the side plate; a first screw rod is fixedly connected to the output end of the second motor; the fixed block is in threaded connection with the first screw rod; the first screw rod is rotatably connected to a pair of side walls of the side plate; a baffle is fixedly connected to the inner sides of the pair of side plates; the baffle is in contact with the top of the fixed block; through the above structure, the second motor, the first screw rod and the baffle are arranged to drive the gluing mechanism and the scraper to move, so that different gluing positions of different packaging bags can be adapted to improve the applicability during use.

[0007] Preferably, the tension adjusting assembly comprises a pair of first sliding blocks; the first sliding blocks are slidably connected to the side walls of the side plate; a pair of electric push rods are fixedly connected to the side walls of the side plate; the electric push rods are fixedly connected to the side walls of the first sliding blocks; a pair of adjusting rollers are rotatably connected to the side walls of the first sliding blocks; through the above structure, the electric push rods and the adjusting rollers are arranged to facilitate the adjustment of the tightness of the plastic film during conveying, so as to reduce the breakage caused by strong tension or the sagging wrinkles caused by weak tension.

[0008] Preferably, the pressing assembly comprises a pair of second sliding blocks; the second sliding blocks are slidably connected to the side walls of the side plate; a pair of spring rods are mounted on the side walls of the side plate; the spring rods are fixedly connected to the side walls of the second sliding blocks; a pair of spring rods are rotatably connected to the side walls of the second sliding blocks; through the above structure, the spring rods and the compression rollers are arranged to adapt to the thickness of the glue or the thickness of the packaging bag, so that the compression rollers can always press the plastic film and the packaging bag, and the bonding effect of the patch can be improved.

[0009] Preferably, a pair of second sliding blocks are fixedly connected to the side walls of the slide rails; a third motor is fixedly connected to the top of the slide rails; a pair of second screw rods are rotatably connected in the slide rails; the second screw rods are driven by the third motor through bevel gears; the second screw rods are in threaded connection with limiting plates in the middle; the limiting plates are in sliding cooperation with the compression rollers; through the above structure, the third motor, the second screw rods and the limiting plates are arranged to limit the plastic film patch between the limiting plates during movement, so as to reduce the deviation of the plastic film during movement.

[0010] Preferably, a pair of side walls of the side plate are fixedly connected to a fixed plate; a pair of air blowers are mounted on the top of the fixed plate; through the above structure, the air blowers are arranged to blow air on the surface of the packaging bag to blow off the dust on the packaging bag before gluing, so as to reduce the mixing of dust and glue, and avoid affecting the bonding effect.

[0011] The beneficial effects of the present application are:

[0012] 1. By arranging the first motor to connect the rotating shaft and the scraper, the glue dropped on the packaging bag can be scraped flat, so as to reduce the interval between the point-shaped glue, avoid the existence of gaps between the patch and the packaging bag, and avoid uneven bonding.

[0013] 2、By setting the second motor and the first screw and the baffle, the glue applying mechanism and the scraper can be driven to move, at this time, different glue applying positions of different packaging bags can be adapted, so that the applicability during use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application. In the drawings:

[0015] Figure 1 is a perspective view of the utility model;

[0016] Figure 2 is a structural schematic view of the conveying belt in the utility model;

[0017] Figure 3 is a structural schematic view of the pressure roller in the utility model;

[0018] Figure 4 is a structural schematic view of the scraper in the utility model;

[0019] Figure 5 is a structural schematic view of the fan in the utility model.

[0020] In the drawings, 1, side plate; 11, unwinding roller; 12, material guide roller; 13, glue applying mechanism; 14, fixed block; 15, fixed frame; 16, first motor; 17, rotating shaft; 18, scraper; 19, conveying belt; 2, second motor; 21, first screw; 22, baffle; 3, first sliding block; 31, electric push rod; 32, adjusting roller; 4, second sliding block; 41, spring rod; 42, pressure roller; 5, sliding rail; 51, third motor; 52, second screw; 53, limiting plate; 6, fixed plate; 61, fan. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be described herein below with reference made to the drawings. Numerous specific details will be set forth in the following description in order to provide a thorough understanding of the application. However, it will be appreciated by those of ordinary skill in the art that the application can be practiced without these details. In other instances, well-known structures and devices are not described in detail in order to avoid obscuring the application. Also, like reference numerals are used to denote like elements throughout the drawings.

[0022] It should be noted that all directional references, such as upper, lower, left, right, front, rear, rearward, etc., are used in relation to the illustrated embodiment as shown in the figures, and are for purposes of explanation only. These directional references are not intended to limit the application to the illustrated position or orientation.

[0023] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and does not mean to particularly indicate the order or sequence, nor to limit the present application, but only to distinguish the parts or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but must be based on the realization of the ordinary skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0024] In order to further understand the utility model content, characteristics and effects of the present application, the following examples are given, and the details are described as follows with reference to the drawings:

[0025] Referring to Figures 1-5 The plastic film patch device in the embodiment comprises a pair of side plates 1, a pair of side walls of the side plates 1 are commonly rotationally connected with unwinding rollers 11; a pair of side walls of the side plates 1 are commonly rotationally connected with a plurality of material guiding rollers 12; the inner side wall of the side plate 1 is provided with an adjusting assembly; the adjusting assembly is provided with a fixed block 14; the side wall of the fixed block 14 is fixedly connected with a gluing mechanism 13; the side wall of the fixed block 14 away from the gluing mechanism 13 is fixedly connected with a fixing frame 15; the side wall of the fixing frame 15 is fixedly connected with a first motor 16; the fixing frame 15 is rotationally connected with a rotating shaft 17 in the middle; the rotating shaft 17 is fixedly connected with the output end of the first motor 16; the rotating shaft 17 is fixedly connected with a scraper 18 in the middle; a pair of side walls of the side plates 1 are commonly rotationally connected with a conveying belt 19; the side wall of the side plate 1 is provided with a pressing assembly and a tension adjusting assembly; when working, the plastic film base material in roll is placed on the unwinding roller 11, then the end portion is pulled to pass through the material guiding roller 12, the pressing assembly and the tension adjusting assembly, and is wound on the external winding equipment, then the external glue supply equipment is connected with the gluing mechanism 13 through the flexible pipeline, when the packaging bag is conveyed on the conveying belt 19, the gluing mechanism 13 will drop the glue on the packaging belt, when the packaging bag moves, it will pass through the scraper 18, at this time, the scraper 18 will scrape the point-shaped glue to be flat, so that the point-shaped glue becomes flat, then it will pass through the pressing assembly to stick the plastic film patch on the packaging bag body, when the thickness of the glue or the thickness of the packaging bag is different, the first motor 16 can be started to drive the scraper 18 to rotate, so as to change the angle between the scraper 18 and the glue, so as to adapt to the packaging bag or the glue thickness with different thicknesses. Through the above structure, the first motor 16 is connected with the rotating shaft 17 and the scraper 18, the glue dropped on the packaging bag can be scraped flat, so as to reduce the interval between the point-shaped glue, so that the gap between the patch and the packaging bag exists, resulting in uneven bonding.

[0026] With reference to Figure 4 , the adjusting assembly comprises a second motor 2; the second motor 2 is fixedly connected to the side wall of the side plate 1; a first screw rod 21 is fixedly connected to the output end of the second motor 2; the fixed block 14 is in threaded connection with the first screw rod 21; the first screw rod 21 is rotatably connected to the side wall of the pair of side plates 1; a baffle 22 is fixedly connected to the inner sides of the pair of side plates 1; the baffle 22 is in contact with the top of the fixed block 14; during operation, the second motor 2 is started to drive the first screw rod 21 to rotate, at this time the first screw rod 21 drives the fixed block 14 to slide at the bottom of the baffle 22, at this time the fixed block 14 drives the gluing mechanism 13, the first motor 16 and the scraper 18 to move, when the second motor 2 rotates forward or reversely, the fixed block 14 reciprocally moves at the bottom of the baffle 22, through the above structure, the second motor 2, the first screw rod 21 and the baffle 22 are arranged to drive the gluing mechanism 13 and the scraper 18 to move, at this time different gluing positions of different packaging bags can be adapted to improve the applicability during use.

[0027] With reference to Figure 1 , the tension adjusting assembly comprises a pair of first sliding blocks 3; the first sliding blocks 3 are slidably connected to the side wall of the side plate 1; a pair of electric push rods 31 are fixedly connected to the side wall of the side plate 1; the electric push rods 31 are fixedly connected to the side wall of the first sliding blocks 3; a pair of adjusting rollers 32 are rotatably connected to the side walls of the first sliding blocks 3; during operation, when the plastic film patch base material is wound around the guide roller 12 and the adjusting roller 32, the electric push rods 31 are started to stretch and contract to drive the adjusting roller 32 to rise or fall, at this time the tightness of the plastic film between the adjusting roller 32 and the guide roller 12 can be adjusted, through the above structure, the electric push rods 31 and the adjusting rollers 32 are arranged to facilitate the adjustment of the tightness of the plastic film during conveying, so as to reduce the breakage caused by strong tension or the sagging wrinkles caused by weak tension.

[0028] With reference to Figure 3 , the pressing assembly comprises a pair of second sliding blocks 4; the second sliding blocks 4 are slidably connected to the side wall of the side plate 1; a pair of spring rods 41 are mounted on the side wall of the side plate 1; the spring rods 41 are fixedly connected to the side wall of the second sliding blocks 4; a pair of spring rods 41 are rotatably connected to the side walls of the second sliding blocks 4; during operation, when the plastic film patch is wound around the pressing roller 42 from the bottom of the pressing roller 42, the pressing roller 42 will press the plastic film on the gluing position of the packaging bag, when the thickness of the glue or the thickness of the packaging bag is different, the spring rods 41 will drive the pressing roller 42 to rise or fall through the contraction and rebound of themselves to adapt to the thickness of the glue or the thickness of the packaging bag, through the above structure, the spring rods 41 and the pressing roller 42 are arranged to adapt to the thickness of the glue or the thickness of the packaging bag, so that the pressing roller 42 can always press the plastic film and the packaging bag, which can improve the bonding effect of the patch.

[0029] With reference to Figure 3A pair of second sliding block 4 side wall common fixed with slide rail 5; The top of slide rail 5 is fixed with third motor 51; Slide rail 5 is rotatably connected with a pair of second screw rod 52; The second screw rod 52 is driven by bevel gear with third motor 51; The middle part of second screw rod 52 is threadedly connected with limit plate 53; Limit plate 53 and compression roller 42 are slidingly connected; When the width of plastic film patch is different, third motor 51 can be started to drive a pair of second screw rod 52 to rotate in opposite directions, which can make limit plate 53 slide on compression roller 42, when limit plate 53 contacts with the edge of plastic film with different width, plastic film can be limited between a pair of limit plate 53, through the above structure, third motor 51, second screw rod 52 and limit plate 53 can limit plastic film between limit plate 53 during movement, so as to reduce the deviation of plastic film during movement.

[0030] Referring to Figure 5 A pair of side plate 1 side wall common fixed with fixed plate 6; The top of fixed plate 6 is installed with a pair of fan 61; When the packaging bag is conveyed, the fan 61 can be started to blow air on the surface of the packaging bag, so as to blow off the dust on the packaging bag, through the above structure, the fan 61 blows air on the surface of the packaging bag, which can blow off the dust on the packaging bag before gluing, so as to reduce the mixing of dust and glue, which can affect the bonding effect.

[0031] Referring to Figures 1-5 The unwinding roller 11, the material guide roller 12, the adjusting roller 32 and the compression roller 42 are all rubber rollers; Through the above structure, the unwinding roller 11, the material guide roller 12, the adjusting roller 32 and the compression roller 42 are all rubber rollers, which can improve the friction force when conveying plastic film, improve the stability during conveying and reduce the slipping condition.

[0032] In summary: the plastic film substrate is placed on the unwinding roller 11, and then the end of the plastic film is pulled around the guide roller 12, the pressing assembly and the tension adjusting assembly, and the end of the plastic film is wound on the external winding device. The external glue supply device is connected to the glue applying mechanism 13 through a flexible pipe. When the packaging bag is conveyed on the conveying belt 19, the glue applying mechanism 13 drops glue on the packaging bag. When the packaging bag moves, it passes through the scraper 18, which spreads the point-shaped glue. Then, when the packaging bag passes through the pressing assembly, the plastic film patch is adhered to the packaging bag. When the thickness of the glue or the thickness of the packaging bag is different, the first motor 16 is started to drive the scraper 18 to rotate, so as to change the angle between the scraper 18 and the glue, thereby adapting to the packaging bag or the glue with different thicknesses. The second motor 2 is started to drive the first screw 21 to rotate, so that the first screw 21 drives the fixed block 14 to slide at the bottom of the baffle 22. At this time, the fixed block 14 drives the glue applying mechanism 13, the first motor 16 and the scraper 18 to move. When the second motor 2 rotates forward or reversely, the fixed block 14 reciprocally moves at the bottom of the baffle 22. When the plastic film patch substrate passes through the guide roller 12 and the adjusting roller 32, the electric push rod 31 is started to stretch and contract, thereby driving the adjusting roller 32 to rise or fall. At this time, the tightness of the plastic film between the adjusting roller 32 and the guide roller 12 can be adjusted. When the plastic film patch passes through the pressing roller 42 from the bottom of the pressing roller 42, the pressing roller 42 presses the plastic film on the glue position of the packaging bag. When the thickness of the glue or the thickness of the packaging bag is different, the spring rod 41 drives the pressing roller 42 to rise or fall through the contraction and rebound of the spring rod 41, so as to adapt to the thickness of the glue or the thickness of the packaging bag. When the width of the plastic film patch is different, the third motor 51 is started to drive a pair of second screws 52 to rotate in opposite directions. At this time, the limiting plate 53 can slide oppositely on the pressing roller 42. When the limiting plate 53 contacts the edges of the plastic film with different widths, the plastic film can be limited between the limiting plates 53. When the packaging bag is conveyed, the air blower 61 is started to blow air on the surface of the packaging bag, so as to blow off the dust on the packaging bag.

[0033] The above merely describes the embodiments of the present application and is not used to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A plastic film patch device, characterized by The utility model provides a kind of rubber coating mechanism, including a pair of side plates (1), a pair of the side wall of the side plate (1) is rotatably connected with unwinding roller (11);A pair of the side wall of the side plate (1) is rotatably connected with multiple material guiding roller (12);The inner side wall of the side plate (1) is equipped with adjusting assembly;The fixed block (14) is installed on the adjusting assembly;The side wall of the fixed block (14) is fixedly connected with rubber coating mechanism (13);The side wall of the fixed block (14) is fixedly connected with fixed frame (15) away from rubber coating mechanism (13) side;The side wall of the fixed frame (15) is fixedly connected with first motor (16);The middle part of the fixed frame (15) is rotatably connected with shaft (17);The shaft (17) is fixedly connected in the output end of first motor (16);The middle part of the shaft (17) is fixedly connected with scraper (18);The side wall of a pair of the side plate (1) is rotatably connected with conveying belt (19);The side wall of the side plate (1) is equipped with tensioning assembly and tension adjustment assembly.

2. The plastic film patch device of claim 1, wherein, The adjusting assembly includes second motor (2);The second motor (2) is fixedly connected in the side wall of side plate (1);The output end of the second motor (2) is fixedly connected with first screw rod (21);The fixed block (14) is threadedly connected with first screw rod (21);The first screw rod (21) is rotatably connected in the side wall of a pair of side plate (1);A pair of the inner side of the side plate (1) is fixedly connected with baffle (22);The baffle (22) is in contact with the top of fixed block (14).

3. The plastic film patch device of claim 1, wherein, The tension adjustment assembly includes a pair of first sliding block (3);The first sliding block (3) is slidably connected in the side wall of side plate (1);The side wall of the side plate (1) is fixedly connected with a pair of electric push rod (31);The end of the electric push rod (31) is fixedly connected in the side wall of first sliding block (3);A pair of the side wall of the first sliding block (3) is rotatably connected with adjusting roller (32).

4. The plastic film patch device of claim 1, wherein, The tensioning assembly includes a pair of second sliding block (4);The second sliding block (4) is slidably connected in the side wall of side plate (1);The side wall of the side plate (1) is equipped with a pair of spring rod (41);The end of the spring rod (41) is fixedly connected in the side wall of second sliding block (4);A pair of the side wall of the second sliding block (4) is rotatably connected with spring rod (41).

5. The plastic film patch device of claim 4, wherein, A pair of the side wall of the second sliding block (4) is fixedly connected with slide rail (5);The top of the slide rail (5) is fixedly connected with third motor (51);A pair of second screw rod (52) is rotatably connected in the slide rail (5);The second screw rod (52) is driven by bevel gear with third motor (51);The middle part of the second screw rod (52) is threadedly connected with limit plate (53);The limit plate (53) is slidably matched with compression roller (42).

6. The plastic film patch device of claim 1, wherein, A pair of the side wall of the side plate (1) is fixedly connected with fixed plate (6);The top of the fixed plate (6) is equipped with a pair of fan (61).

7. The plastic film patch device of claim 1, wherein, The unwinding roller (11), material guiding roller (12), adjusting roller (32), compression roller (42) are all rubber roller structure.

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