Plastic bag heat sealing device

Abstract

The utility model discloses a plastic bag heat sealing device, and relates to the technical field of plastic bag heat sealing. The device comprises a base, a heat sealing box is fixedly connected to the top of the base, an opening is formed in the front face of the heat sealing box, a flattening assembly is arranged in the heat sealing box and comprises a lifting frame, flattening rollers are rotationally connected to the left side and the right side of the bottom of the lifting frame, and an electromagnetic heating roller is arranged in the center of the bottom of the lifting frame. The front face and the back face of the electromagnetic heating roller are fixedly connected with connecting frames, and the tops of the connecting frames penetrate through the lifting frame and extend to the outside. According to the plastic bag flattening device, the flattening assembly is arranged, specifically, the pressing plate is pressed, the pressing plate drives the lifting frame to move downwards through the pressing rod, when the lifting frame moves, the flattening roller makes contact with a plastic bag firstly, the flattening roller flattens the plastic bag repeatedly, the plastic bag is kept in a flat state, the wrinkles are greatly reduced in the sealing process, the sealing flatness is improved, and the sealing quality is improved. And the reworking condition is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to plastic bag heat sealing technical field, especially, relate to a plastic bag heat sealing device. BACKGROUND

[0002] Plastic bag heat sealing device is a kind of equipment for heat sealing of plastic film material, is widely used in packaging industry.

[0003] According to the patent with the publication number CN219749075U a kind of plastic bag heat sealing device, the plastic bag heat sealing device, simultaneously realizes the heat sealing and cutting of plastic bag, reduces the step of processing, makes the plastic bag production efficiency higher, but there is still the following insufficient, such as:

[0004] The device does not have the function of smoothing when sealing plastic bags, as plastic bags usually have more wrinkles and lift when placed, which causes the heat-sealed plastic bag to have more serious wrinkles during the sealing process, not only affects the appearance after packaging, but also needs to be reworked when serious, increasing the use cost, therefore we propose a plastic bag heat sealing device. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of plastic bag heat sealing device, by setting smoothing component, specifically is pressing pressure plate, then pressure plate is driven lifting frame downward by pressure rod, smoothing roller will contact with plastic bag first when lifting frame moves, and smoothing roller then flattens plastic bag, so that plastic bag keeps flat state, greatly reduces the wrinkle condition when sealing, improves the flatness of seal, reduces the rework situation, solves the function of smoothing when sealing plastic bag, as plastic bags usually have more wrinkles and lift when placed, which causes the heat-sealed plastic bag to have more serious wrinkles during the sealing process.

[0006] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a kind of plastic bag heat sealing device, including base, the base top is fixedly connected with heat sealing box, the heat sealing box front is equipped with opening, the heat sealing box is internally provided with smoothing component, the smoothing component includes lifting frame, the lifting frame bottom left side and right side are all rotatably connected with smoothing roller;

[0008] The electromagnetic heating roller is fixedly connected with the connecting frame on the front face and the back face, the connecting frame penetrates through the lifting frame and extends to the outside at the top, and the connecting frame is in sliding connection with the lifting frame.

[0009] Further, the spring two is sleeved outside the pressing rod, the top of the spring two is fixedly connected with the inner wall top of the heat sealing box, the bottom of the spring two is fixedly connected with the top of the lifting frame, one side of the connecting frame close to the pressing rod is fixedly connected with a fixed block, a limiting rod is in sliding connection with the inside of the fixed block, the top of the limiting rod is fixedly connected with a limiting block, and a spring one is sleeved outside the limiting rod.

[0010] Further, the heat sealing box is provided with a slag discharge opening in the back face, a fixed roller is fixedly connected with the inner wall of the heat sealing box, a flow guide plate is arranged on the right side of the fixed roller, an inclined plate is arranged on the left side of the fixed roller, a limiting plate is arranged above the inclined plate, and the front face and the back face of the flow guide plate, the inclined plate and the limiting plate are fixedly connected with the inner wall of the heat sealing box.

[0011] Further, the heat sealing box is provided with a sealing plate in contact, a convex block is fixedly connected with the back face of the top of the sealing plate, a clamping block is fixedly connected with the top of the convex block, a groove is arranged in the inside of the clamping block, limiting convex plates are in contact with the left side and the right side of the sealing plate, the front face of the two limiting convex plates is fixedly connected with the back face of the heat sealing box, and convex blocks are arranged on the sides, away from each other, of the two limiting convex plates.

[0012] Further, the sealing plate is provided with a clamping rod behind, a fixed shaft is rotatably connected with the inside of the clamping rod, the bottom of the fixed shaft is fixedly connected with the top of the heat sealing box, a limiting ring is fixedly connected with the outer surface of the fixed shaft, the bottom of the clamping rod is in contact with the top of the limiting ring, and the clamping rod is matched with the groove arranged in the inside of the clamping block.

[0013] Further, the bottom of the limiting rod is fixedly connected with the top of the lifting frame, the top of the spring one is fixedly connected with the bottom of the limiting block, and the bottom of the spring one is fixedly connected with the top of the fixed block.

[0014] Further, the bottom of the inclined plate is fixedly connected with the top of the base, the inclined plate is arranged in an inclined mode, and the back face of the flow guide plate is in contact with the surface of the fixed roller.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model discloses a set up the even group, specifically is pressing the pressing plate, and then the pressing plate is driven the lifting frame to move down through the pressure rod, and the even roller will first contact with the plastic bag when the lifting frame moves, and the even roller then carries out the even of plastic bag, makes the plastic bag keep the even state, makes the situation of crease when sealing greatly reduces, improves the evenness of the seal, and reduces the situation of rework.

[0017] 2. The utility model discloses a set up the sealing plate, specifically is the sealing plate is pulled up through the protruding block, when the recess on the clamping block moves to the clamping rod position, the clamping rod is rotated and is inserted into the recess on the clamping block, thereby the clamping block is supported, and the sealing plate is supported, and the slag outlet on the back of heat sealing box is opened at this time, and the staff is convenient to take out the internal waste, thereby keeping the cleanness of heat sealing box inside.

[0018] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be needed to use the drawing of the embodiment to introduce briefly, and obviously, the drawing in the following description only is some embodiments of the utility model, and for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0020] Figure 1 It is the whole structure schematic diagram of the utility model;

[0021] Figure 2 It is the internal structure schematic diagram of heat sealing box of the utility model;

[0022] Figure 3 It is the back structure schematic diagram of heat sealing box of the utility model;

[0023] Figure 4 It is the whole structure schematic diagram of lifting frame of the utility model;

[0024] Figure 5 It is the whole structure schematic diagram of the utility model Figure 4 The enlarged structure schematic diagram of A of the utility model.

[0025] In the drawing, the component list represented by each sign is as follows:

[0026] 1, base; 11, heat sealing box; 111, opening; 112, slagging port; 12, flat assembly; 121, lifting frame; 122, flat roller; 123, electromagnetic heating roller; 124, connecting frame; 241, fixed block; 242, limiting rod; 243, limiting block; 244, spring one; 13, fixed roller; 131, flow guide plate; 132, inclined plate; 133, limiting plate; 14, clamping rod; 141, fixed shaft; 142, limiting ring; 15, sealing plate; 151, protruding block; 152, clamping block; 153, limiting protruding plate; 16, pressing plate; 161, pressing rod; 162, spring two. DETAILED DESCRIPTION

[0027] 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 scope of protection of the utility model.

[0028] Please refer to Figures 1-5 The utility model discloses a plastic bag heat sealing device, including base 1, the top fixed connection of base 1 has heat sealing box 11, the front of heat sealing box 11 is provided with opening 111, heat sealing box 11 is provided with flat assembly 12 inside, flat assembly 12 includes lifting frame 121, and the bottom left side and right side of lifting frame 121 are all rotatably connected with flat roller 122;

[0029] The bottom center of lifting frame 121 is provided with electromagnetic heating roller 123, and the front and back of electromagnetic heating roller 123 are all fixedly connected with connecting frame 124, and connecting frame 124 penetrates lifting frame 121 and extends to outside at the top, and connecting frame 124 is slidably connected with lifting frame 121, and heat sealing box 11 is provided with pressing plate 16 above, and the bottom of pressing plate 16 is fixedly connected with two pressing rods 161, and the bottom of two pressing rods 161 penetrates heat sealing box 11 and extends to the top of lifting frame 121 and is fixedly connected, and pressing rod 161 is slidably connected with heat sealing box 11, by setting flat assembly 12, specifically, pressing pressing plate 16, then pressing plate 16 drives lifting frame 121 to move downwards through pressing rod 161, when lifting frame 121 moves, flat roller 122 will contact plastic bag first, and flat roller 122 then flattens plastic bag, so that plastic bag keeps the state of flatness, so that the situation of crease is greatly reduced when sealing, the flatness of sealing is improved, and the situation of rework is reduced.

[0030] The outer side of the pressing rod 161 is sleeved with a spring 162, the top of the spring 162 is fixedly connected with the top of the inner wall of the heat sealing box 11, the bottom of the spring 162 is fixedly connected with the top of the lifting frame 121, the side close to the pressing rod 161 of the connecting frame 124 is fixedly connected with a fixed block 241, the inside of the fixed block 241 is slidably connected with a limiting rod 242, the top of the limiting rod 242 is fixedly connected with a limiting block 243, the outer side of the limiting rod 242 is sleeved with a spring 244, after the electromagnetic heating roller 123 contacts with the fixed roller 13, the connecting frame 124 can slide on the lifting frame 121 through the pressing force, then the fixed block 241 slides on the limiting rod 242, and the spring 244 is squeezed at the same time, so that the spring 244 can have a certain moving space.

[0031] The back of the heat sealing box 11 is provided with a residue discharging port 112, the inner wall of the heat sealing box 11 is fixedly connected with a fixed roller 13, the right side of the fixed roller 13 is provided with a flow guide plate 131, the left side of the fixed roller 13 is provided with an inclined plate 132, the upper side of the inclined plate 132 is provided with a limiting plate 133, the front and back of the flow guide plate 131, the inclined plate 132 and the limiting plate 133 are fixedly connected with the inner wall of the heat sealing box 11, the plastic bag can move to the upper side of the fixed roller 13 along the flow guide plate 131, and the plastic bag is limited after contacting with the limiting plate 133.

[0032] The back of the heat sealing box 11 is in contact with a sealing plate 15, the top back of the sealing plate 15 is fixedly connected with a convex block 151, the top of the convex block 151 is fixedly connected with a clamping block 152, the inside of the clamping block 152 is provided with a groove, the left side and the right side of the sealing plate 15 are in contact with limiting convex plates 153, the front of the two limiting convex plates 153 is fixedly connected with the back of the heat sealing box 11, and the side close to each other of the two limiting convex plates 153 is provided with a convex block. By arranging the sealing plate 15, specifically, the sealing plate 15 is pulled upward through the convex block 151, when the groove on the clamping block 152 moves to the position of the clamping rod 14, the clamping rod 14 is inserted into the groove on the clamping block 152 in a rotating mode, so that the clamping block 152 is supported, then the sealing plate 15 is supported, at this time, the residue discharging port 112 on the back of the heat sealing box 11 is opened, the worker can take out the waste in the heat sealing box 11, so that the inside of the heat sealing box 11 is kept clean.

[0033] The back of the heat sealing box 11 is in contact with a sealing plate 15, the top back of the sealing plate 15 is fixedly connected with a convex block 151, the top of the convex block 151 is fixedly connected with a clamping block 152, the inside of the clamping block 152 is provided with a groove, the left side and the right side of the sealing plate 15 are in contact with limiting convex plates 153, the front of the two limiting convex plates 153 is fixedly connected with the back of the heat sealing box 11, and the side close to each other of the two limiting convex plates 153 is provided with a convex block. By arranging the sealing plate 15, specifically, the sealing plate 15 is pulled upward through the convex block 151, when the groove on the clamping block 152 moves to the position of the clamping rod 14, the clamping rod 14 is inserted into the groove on the clamping block 152 in a rotating mode, so that the clamping block 152 is supported, then the sealing plate 15 is supported, at this time, the residue discharging port 112 on the back of the heat sealing box 11 is opened, the worker can take out the waste in the heat sealing box 11, so that the inside of the heat sealing box 11 is kept clean.

[0034] The bottom of the limiting rod 242 is fixedly connected with the top of the lifting frame 121, the top of the spring 244 is fixedly connected with the bottom of the limiting block 243, and the bottom of the spring 244 is fixedly connected with the top of the fixed block 241.

[0035] The bottom of the inclined plate 132 is fixedly connected with the top of the base 1, the inclined plate 132 is arranged obliquely, the back of the flow guide plate 131 is in contact with the surface of the fixed roller 13, and when the plastic bag is broken during heat sealing, the broken plastic bag is guided by the inclined plate 132 to the rear of the limiting plate 133 and is collected.

[0036] One specific application of the embodiment is:

[0037] In use, the plastic bag to be sealed is inserted into the heat sealing box 11 from the opening 111, and then the plastic bag moves along the flow guide plate 131 to above the fixed roller 13, and when the plastic bag contacts the limiting plate 133, the plastic bag is limited, at this time, the plastic bag is stopped, the electromagnetic heating roller 123 is a cylindrical heating body, and the electromagnetic heating roller 123 comprises a coil in the inside, the coil can generate a magnetic field after being electrified, when the current passes through the coil, according to the Faraday's law of electromagnetic induction, an eddy current is generated on the metal surface, and then Joule heat is generated, so that the roller body is heated, then the pressing plate 16 is pressed, the pressing plate 16 drives the lifting frame 121 to move downward through the pressing rod 161, and the lifting frame 121 stretches the spring two 162 at the same time, when the lifting frame 121 moves, the flat roller 122 first contacts the plastic bag, and the flat roller 122 flattens the plastic bag, so that the plastic bag is kept in a flat state, the folding of the plastic bag during sealing is greatly reduced, the flatness of the sealing is improved, and the rework is reduced, after the plastic bag is flattened, the electromagnetic heating roller 123 contacts the plastic bag for heat sealing in cooperation with the fixed roller 13, and after the electromagnetic heating roller 123 contacts the fixed roller 13, the connecting frame 124 slides on the lifting frame 121 through the pressing force, the fixed block 241 slides on the limiting rod 242 at the same time, and the spring one 244 is pressed and can have a certain movement space, after the heat sealing is completed, the pressing plate 16 is released, the lifting frame 121 is reset upward through the elastic action of the spring two 162, the connecting frame 124 drives the electromagnetic heating roller 123 to reset through the elastic action of the spring one 244, and then the plastic bag can be taken out.

[0038] When the plastic bag is broken during heat sealing, the broken plastic bag is guided by the inclined plate 132 to the rear of the limiting plate 133 and is collected, when too much waste is left, the sealing plate 15 is pulled upward through the protrusion 151, the protrusion 151 slides in the limiting protrusion 153, when the recess on the clamping block 152 moves to the position of the clamping rod 14, the clamping rod 14 is rotated, the clamping rod 14 rotates on the fixed shaft 141, the limiting ring 142 is used for supporting the clamping rod 14, the clamping rod 14 is inserted into the recess on the clamping block 152, so that the clamping block 152 is supported, and then the sealing plate 15 is supported, at this time, the slag discharge opening 112 on the back of the heat sealing box 11 is opened, so that the worker can take out the waste in the heat sealing box 11, so that the heat sealing box 11 is kept clean, after being taken out, the clamping rod 14 is reversely rotated to move away from the clamping block 152, so that the support of the sealing plate 15 is released, and then the sealing plate 15 is placed down to seal the slag discharge opening 112.

[0039] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and limit the present application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that the persons skilled in the art can well understand and utilize the present application. The present application is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A plastic bag heat sealing device, comprising a base (1), the top of which is fixedly connected with a heat sealing box (11), the front of which is provided with an opening (111), and the inside of which is provided with a thread smoothing assembly (12), the thread smoothing assembly (12) comprising a lifting frame (121), the bottom of which is rotatably connected with thread smoothing rollers (122) on the left and right sides, characterized in that; the bottom center of the lifting frame (121) is provided with an electromagnetic heating roller (123), the front and back of which are fixedly connected with connecting frames (124), the top of which penetrates through the lifting frame (121) and extends to the outside, and the connecting frame (124) is slidingly connected with the lifting frame (121), the upper part of the heat sealing box (11) is provided with a pressing plate (16), the bottom of which is fixedly connected with two pressing rods (161), the bottoms of which penetrate through the heat sealing box (11) and extend to the top of the lifting frame (121) and are fixedly connected, and the pressing rods (161) are slidingly connected with the heat sealing box (11).

2. A plastic bag heat sealing apparatus according to claim 1, wherein The outer side of the pressing rod (161) is provided with a spring two (162), the top of which is fixedly connected with the inner wall top of the heat sealing box (11), and the bottom of which is fixedly connected with the top of the lifting frame (121), one side of the connecting frame (124) close to the pressing rod (161) is fixedly connected with a fixed block (241), the inside of which is slidingly connected with a limiting rod (242), the top of which is fixedly connected with a limiting block (243), and the outer side of the limiting rod (242) is provided with a spring one (244).

3. A plastic bag heat sealing apparatus according to claim 2, wherein The back of the heat sealing box (11) is provided with a slag discharge port (112), the inner wall of which is fixedly connected with a fixed roller (13), the right side of which is provided with a flow guide plate (131), the left side of which is provided with an inclined plate (132), the upper part of which is provided with a limiting plate (133), and the front and back of the flow guide plate (131), the inclined plate (132) and the limiting plate (133) are fixedly connected with the inner wall of the heat sealing box (11).

4. A plastic bag heat sealing apparatus according to claim 3, wherein The back of the heat sealing box (11) is in contact with a sealing plate (15), the top back of which is fixedly connected with a protruding block (151), the top of which is fixedly connected with a clamping block (152), the inside of which is provided with a groove, the left and right sides of the sealing plate (15) are in contact with limiting convex plates (153), the front of the two limiting convex plates (153) is fixedly connected with the back of the heat sealing box (11), and the side close to each other of the two limiting convex plates (153) is provided with a protruding block.

5. A plastic bag heat sealing apparatus according to claim 4, wherein The clamping rod (14) is internally rotatably connected with a fixing shaft (141), the bottom of the fixing shaft (141) is fixedly connected with the top of the heat sealing box (11), the outer surface of the fixing shaft (141) is fixedly connected with a limiting ring (142), the bottom of the clamping rod (14) is in contact with the top of the limiting ring (142), and the clamping rod (14) is matched with a groove formed in the clamping block (152).

6. A plastic bag heat sealing apparatus according to claim 4, wherein The bottom of the limiting rod (242) is fixedly connected with the top of the lifting frame (121), the top of the spring (244) is fixedly connected with the bottom of the limiting block (243), and the bottom of the spring (244) is fixedly connected with the top of the fixed block (241).

7. A plastic bag heat sealing apparatus according to claim 4 wherein, The bottom of the inclined plate (132) is fixedly connected with the top of the base (1), the inclined plate (132) is arranged to be inclined, and the back surface of the flow guide plate (131) is in contact with the surface of the fixed roller (13).

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