Plastic bag heat sealing device

Abstract

The utility model discloses a plastic bag heat sealing device which comprises a working table, a controller fixedly installed on the left side of the working table and used for controlling operation of the device, and a conveying assembly, and relates to the technical field of plastic bag production. According to the plastic bag heat sealing device, a plastic bag can be clamped and conveyed for heat sealing treatment through the arranged clamping frame and the arranged placing plate, the plastic bag is placed on the guide plate during use, then a handle is pulled to drive the clamping frame to rise, the plastic bag is pushed to be located between the clamping frame and the placing plate, and one end of the plastic bag abuts against one side of the positioning plate; and then the handle is loosened, at the moment, the sliding block can be driven by the elastic force of the spring to enable the clamping frame to descend to clamp the plastic bag through the placing plate, meanwhile, the clamping plate can press the plastic bag, the area needing to be sealed can be located on the notch, the heat sealing area can be positioned, the situation that the heat sealing effect is affected by folding is avoided, and the cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic bag production, specifically to a plastic bag heat sealing device. BACKGROUND

[0002] Plastic bag heat sealing is a packaging technology, which utilizes the thermoplastic properties of plastic to bond the plastic film at the sealing part together through heating and pressing. During the processing of plastic bags, the bottom end of the plastic bag needs to be sealed.

[0003] Referring to the patent application disclosed in the patent application with the publication number CN220948871U, a plastic bag heat sealing device, the utility model discloses an intermittent work of the motor at the bottom of the installation table, and the output shaft drives the rotating column to rotate intermittently, so that the plastic bag installed above the plastic bag flat plate can be rotated and transmitted to the heat sealing area. After the heat sealing is completed, the rotating column rotates away from the heat sealing area, and the driving motor on the outer side of the lower transmission frame drives the plastic bag flat plate to rotate downward to incline, so that the plastic bag flat plate resets after the plastic bag slides down after heat sealing. This facilitates the re-paving of plastic bags and repeated operation, so that heat sealing and plastic bag installation are performed simultaneously, improving the heat sealing efficiency of plastic bags, while ensuring that the temperature of the heat sealing strip remains constant, saving energy and protecting the environment.

[0004] However, the device of the above technology drives the pressing frame through the driving motors on the outer sides of the multiple upper transmission frames to clamp and fix the plastic bag for conveying. The clamped plastic bag is one end of the plastic bag. The existing device fixes and conveys in this way, which may cause the plastic bag to fold during movement to the heat sealing area, cannot well position the heat sealing area, affects the heat sealing effect, and the clamping cost is too high through multiple driving motors, and the practicality is general. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a plastic bag heat sealing device, which solves the problems of the prior art that the existing plastic bag heat sealing device is prone to causing the plastic bag to fold during movement to the heat sealing area, cannot well position the heat sealing area, affects the heat sealing effect, and the clamping cost is too high through multiple driving motors, and the practicality is general.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a plastic bag heat sealing device, comprising a workbench, a controller is fixedly installed on the left side of the workbench for controlling the operation of the device, and further comprising:

[0007] A conveying assembly is arranged on the top surface of the workbench for clamping and conveying the plastic bag and can accurately position the heat sealing position of the plastic bag;

[0008] A heat sealing assembly is arranged on the rear side of the top surface of the workbench for sealing the plastic bag;

[0009] The collecting assembly is arranged on the right side of the workbench and is used for collecting the sealed plastic bags.

[0010] Preferably, the conveying assembly comprises a mounting cylinder movably mounted on the top surface of the workbench, a guide plate fixedly mounted on the front side of the top surface of the workbench, and a stepping motor fixedly mounted on the bottom surface of the workbench, wherein the output end of the stepping motor movably penetrates through the bottom surface of the workbench and is fixedly mounted on the bottom surface of the mounting cylinder to drive the mounting cylinder to rotate, and a clamping assembly is arranged on the outer side of the mounting cylinder to fix the position of the plastic bag.

[0011] Preferably, the clamping assembly comprises a plurality of mounting racks fixedly mounted on the outer side of the mounting cylinder, a placing plate fixedly mounted on one side of the mounting racks, a notch formed in the top surface of the placing plate to position the heat sealing area of the plastic bag, two groove plates fixedly mounted on one side of the placing plate close to the mounting cylinder, springs fixedly mounted on the top surface of the inner cavities of the two groove plates, sliding blocks movably mounted in the two groove plates, clamping frames fixedly mounted on one side of the sliding blocks away from the mounting cylinder to clamp the plastic bag, a positioning plate fixedly mounted on the top surface of the placing plate to position the bag opening, clamping plates fixedly mounted on the inner side of the clamping frames, handles fixedly mounted on the top surface of the clamping frames to facilitate lifting the clamping frames, and arc-shaped plates fixedly mounted on the left and right sides of the placing plate.

[0012] Preferably, the bottom end of the spring is fixedly mounted on the top surface of the sliding block to drive the clamping frame to press down through the placing plate and clamp the plastic bag through the sliding block.

[0013] Preferably, the heat sealing assembly comprises a fixed frame fixedly mounted on the rear side of the top surface of the workbench, a pneumatic cylinder fixedly mounted on the top surface of the fixed frame, a first heat sealing pressing strip fixedly mounted on the output end of the pneumatic cylinder, a second heat sealing pressing strip fixedly mounted on the bottom surface of the inner cavity of the fixed frame, and the output end of the pneumatic cylinder movably penetrates through the top surface of the fixed frame and is fixedly mounted on the top surface of the first heat sealing pressing strip to drive the first heat sealing pressing strip to descend through the second heat sealing pressing strip to seal the plastic bag.

[0014] Preferably, the collecting assembly comprises a collecting frame fixedly mounted on the right side of the workbench to contain the sealed plastic bags, a connecting frame fixedly mounted on the front side of the inner cavity of the collecting frame, and a resisting plate fixedly mounted on the top surface of the connecting frame to take down the sealed plastic bags.

[0015] Compared with the prior art, the plastic bag heat sealing device has the following beneficial effects:

[0016] (1), the plastic bag heat sealing device, through the clamping frame and placing plate set can be clamped plastic bag conveying heat sealing treatment, in use plastic bag is placed on the guide plate, then pull the handle drive clamping frame up, push the plastic bag makes it between the clamping frame and placing plate and makes the plastic bag one end against the positioning plate one side, then loosen the handle, at this time through the spring force can drive the slider makes the clamping frame down through the placing plate clamping plastic bag, at the same time, the clamp will be pressed on the plastic bag, at this time the area needs to seal will be located on the notch, can be positioned to heat sealing area avoid folding influence heat sealing effect, and the cost is lower.

[0017] (2), the plastic bag heat sealing device, through the setting of the collection frame is convenient for collecting the plastic bag after heat sealing, when the plastic bag heat sealing good will start the conveying assembly rotation, then the resistance plate will be in the bottom surface of the arc plate and the clamping frame is lifted and separated from the placing plate, at this time the plastic bag will be because of gravity from the clamping frame and placing plate between fall to the inside of the collection frame for collection, convenient and fast, good practicality. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three-dimensional appearance schematic view of the utility model;

[0019] Figure 2 It is the three-dimensional appearance schematic view of the utility model's conveying assembly;

[0020] Figure 3 It is the three-dimensional appearance schematic view of the utility model's conveying assembly section;

[0021] Figure 4 It is the three-dimensional appearance schematic view of the utility model's conveying assembly local;

[0022] Figure 5 It is the three-dimensional appearance schematic view of the utility model's heat sealing assembly;

[0023] Figure 6 It is the three-dimensional appearance schematic view of the utility model's collection assembly.

[0024] In the drawing: 1 - workbench, 21 - conveying assembly, 211 - guide plate, 212 - installation cylinder, 213 - mounting frame, 214 - clamping frame, 215 - arc plate, 216 - placing plate, 217 - groove plate, 218 - handle, 219 - clamp plate, 2110 - spring, 2111 - notch, 2112 - slider, 2113 - positioning plate, 2114 - stepper motor, 22 - heat sealing assembly, 221 - fixed frame, 222 - pneumatic cylinder, 223 - first heat sealing batten, 224 - second heat sealing batten, 23 - collection assembly, 231 - collection frame, 232 - connecting frame, 233 - resistance plate, 3 - controller. DETAILED DESCRIPTION

[0025] Clearly and completely describe the technical scheme in the embodiments of the utility model 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 the ordinary skilled in the art without making creative labor belong to the scope of the utility model protection.

[0026] With reference to Figures 1-6 The utility model provides two technical schemes:

[0027] The first implementation: a plastic bag heat sealing device, including the workbench 1, the left side fixed mounting of workbench 1 has controller 3 for controlling the operation of device, still includes:

[0028] Conveying assembly 21, setting in the top surface of workbench 1 for the clamping transport of plastic bag, and can accurately position the heat sealing position of plastic bag;

[0029] Heat sealing assembly 22, setting in the top surface of workbench 1 rear side for the sealing of plastic bag;

[0030] The collecting assembly 23 is arranged on the right side of the workbench 1 and is used for collecting the sealed plastic bags, and can automatically feed. The conveying assembly 21 comprises a mounting cylinder 212 movably arranged on the top surface of the workbench 1, a guide plate 211 fixedly arranged on the front side of the top surface of the workbench 1, and a stepping motor 2114 fixedly arranged on the bottom surface of the workbench 1. The output end of the stepping motor 2114 movably penetrates through the bottom surface of the workbench 1 and is fixedly arranged on the bottom surface of the mounting cylinder 212, so as to drive the mounting cylinder 212 to rotate. A clamping assembly is arranged on the outer side of the mounting cylinder 212 and is used for fixing the position of the plastic bag. The clamping assembly comprises a plurality of mounting frames 213 fixedly arranged on the outer side of the mounting cylinder 212, and the mounting frames 213 are evenly distributed on the outer side of the mounting cylinder 212 in a circle. A placing plate 216 is fixedly arranged on one side of the mounting frame 213. A notch 2111 is formed in the top surface of the placing plate 216 and is used for positioning the heat sealing area of the plastic bag. Two groove plates 217 are fixedly arranged on one side of the placing plate 216 close to the mounting cylinder 212. A spring 2110 is fixedly arranged on the top surface of the inner cavity of each groove plate 217. A sliding block 2112 is movably arranged in each groove plate 217, and the sliding block 2112 is convex. A clamping frame 214 is fixedly arranged on one side of the sliding block 2112 away from the mounting cylinder 212 and is used for clamping the plastic bag. The spring 2110 can drive the sliding block 2112 to make the clamping frame 214 descend. A positioning plate 2113 is fixedly arranged on the top surface of the placing plate 216 and is used for positioning the position of the bag opening. A clamping plate 219 is fixedly arranged on the inner side of the clamping frame 214. A handle 218 is fixedly arranged on the top surface of the clamping frame 214 and is used for conveniently pulling up the clamping frame 214. An arc-shaped plate 215 is fixedly arranged on the left and right sides of the placing plate 216, and the arc-shaped plate 215 is arc-shaped and is used for conveniently opening the clamping frame 214 by the collecting assembly 23 to make the sealed plastic bag fall off. The bottom end of the spring 2110 is fixedly arranged on the top surface of the sliding block 2112 and is used for driving the clamping frame 214 to press down through the placing plate 216 to clamp the plastic bag.

[0031] The clamping frame 214 and the placing plate 216 can clamp the plastic bag to convey and heat seal. In use, the plastic bag is placed on the guide plate 211, then the handle 218 is pulled to drive the clamping frame 214 to rise, the plastic bag is pushed to be located between the clamping frame 214 and the placing plate 216 and one end of the plastic bag is abutted against one side of the positioning plate 2113, then the handle 218 is released. At this time, the spring 2110 can drive the sliding block 2112 to make the clamping frame 214 descend to clamp the plastic bag through the placing plate 216. The clamping plate 219 will press on the plastic bag. At this time, the area to be sealed is located on the notch 2111, so that the heat sealing area can be positioned to avoid folding and affect the heat sealing effect, and the cost is low.

[0032] The second embodiment has the main difference from the first embodiment that the heat sealing assembly 22 comprises a fixed frame 221 fixedly installed on the top rear side of the workbench 1, the top of the fixed frame 221 is fixedly installed with a pneumatic cylinder 222, the output end of the pneumatic cylinder 222 is fixedly installed with a first heat sealing pressing strip 223, the bottom of the inner cavity of the fixed frame 221 is fixedly installed with a second heat sealing pressing strip 224, the output end of the pneumatic cylinder 222 is movably penetrated through the top of the fixed frame 221 and fixed on the top of the first heat sealing pressing strip 223 for driving the first heat sealing pressing strip 223 to descend to seal the plastic bag through the second heat sealing pressing strip 224, and the collecting assembly 23 comprises a collecting frame 231 fixedly installed on the right side of the workbench 1 for containing the sealed plastic bag, the front side of the inner cavity of the collecting frame 231 is fixedly installed with a connecting frame 232, the top of the connecting frame 232 is fixedly installed with an abutting plate 233 for taking out the sealed plastic bag, and the rear side of the abutting plate 233 is inclined.

[0033] The collecting frame 231 is arranged to facilitate the collection of the heat sealed plastic bag, when the plastic bag is heat sealed, the conveying assembly 21 is started to rotate, then the abutting plate 233 abuts against the bottom of the arc-shaped plate 215 and lifts up the clamping frame 214 to separate from the placing plate 216, at this time the plastic bag falls from between the clamping frame 214 and the placing plate 216 to the inside of the collecting frame 231 due to gravity for collection, which is convenient, fast and practical.

[0034] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art, and the model parameters of various appliances are not specifically limited, and conventional equipment can be used.

[0035] In use, the user places the plastic bag on the guide plate 211, then pulls the handle 218 to lift up the clamping frame 214, pushes the plastic bag to be located between the clamping frame 214 and the placing plate 216 and makes one end of the plastic bag abut against one side of the positioning plate 2113, and then releases the handle 218, at this time the spring 2110 can drive the sliding block 2112 to make the clamping frame 214 descend to clamp the plastic bag through the placing plate 216, and at the same time the clamping plate 219 presses on the plastic bag, at this time the area to be sealed is located on the slot 2111, then the controller 3 controls the stepping motor 2114 to rotate clockwise to drive the mounting cylinder 212 to make the slot 2111 located on the second heat sealing pressing strip 224, then the pneumatic cylinder 222 is started to drive the first heat sealing pressing strip 223 to press down to make the plastic bag contact with the second heat sealing pressing strip 224 for sealing, after sealing, the pneumatic cylinder 222 is started to drive the first heat sealing pressing strip 223 to reset, and then the stepping motor 2114 is started to rotate clockwise, at this time the abutting plate 233 abuts against the bottom of the arc-shaped plate 215 and lifts up the clamping frame 214 to separate from the placing plate 216, at this time the plastic bag falls from between the clamping frame 214 and the placing plate 216 to the inside of the collecting frame 231 due to gravity for collection.

[0036] It has to be noted that the terms like first and second etc. are used herein for the purpose of distinguishing one general feature from another individual feature only and do not require or imply any actual relationship or order between such features and / or any particular order of such features. Furthermore, the terms "comprises / comprising" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process / method / article of manufacture / alloy comprising 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 of manufacture / alloy.

[0037] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes - modifications - substitutions and alterations can be made therein without departing from the spirit and scope of the present application, which is defined by the appended claims and their equivalents.

Claims

1. A plastic bag heat sealing apparatus comprising a worktable (1), characterized in that: The left side of the workbench (1) is fixedly provided with a controller (3) for controlling the operation of the device, and further comprises: A conveying assembly (21) is arranged on the top surface of the workbench (1) for clamping and conveying the plastic bag and can accurately position the heat sealing position of the plastic bag; A heat sealing assembly (22) is arranged on the rear side of the top surface of the workbench (1) for sealing the plastic bag; A collecting assembly (23) is arranged on the right side of the workbench (1) for collecting the sealed plastic bag and can automatically discharge.

2. A plastic bag heat sealing apparatus according to claim 1, wherein: The conveying assembly (21) comprises a mounting cylinder (212) movably mounted on the top surface of the workbench (1), a guide plate (211) fixedly mounted on the front side of the top surface of the workbench (1), and a stepping motor (2114) fixedly mounted on the bottom surface of the workbench (1), wherein the output end of the stepping motor (2114) movably penetrates through the bottom surface of the workbench (1) and is fixedly mounted on the bottom surface of the mounting cylinder (212) for driving the mounting cylinder (212) to rotate, and the outer side of the mounting cylinder (212) is provided with a clamping assembly for fixing the position of the plastic bag.

3. A plastic bag heat sealing apparatus as defined in claim 2 wherein: The clamping assembly comprises a plurality of mounting racks (213) fixedly mounted on the outer side of the mounting cylinder (212), a placing plate (216) fixedly mounted on one side of the mounting rack (213), a notch (2111) formed in the top surface of the placing plate (216) for positioning the heat sealing area of the plastic bag, two slot plates (217) fixedly mounted on one side of the placing plate (216) close to the mounting cylinder (212), a spring (2110) fixedly mounted on the top surface of the inner cavity of each slot plate (217), a sliding block (2112) movably mounted in each slot plate (217), a clamping frame (214) fixedly mounted on one side of the sliding block (2112) away from the mounting cylinder (212) for clamping the plastic bag, a positioning plate (2113) fixedly mounted on the top surface of the placing plate (216) for positioning the position of the bag opening, a clamping plate (219) fixedly mounted on the inner side of the clamping frame (214), a handle (218) fixedly mounted on the top surface of the clamping frame (214) for conveniently pulling up the clamping frame (214), and an arc-shaped plate (215) fixedly mounted on the left and right sides of the placing plate (216).

4. A plastic bag heat sealing apparatus according to claim 3, wherein: The bottom end of the spring (2110) is fixedly mounted on the top surface of the sliding block (2112) for driving the clamping frame (214) to press down through the placing plate (216) to clamp the plastic bag.

5. A plastic bag heat sealing apparatus as defined in claim 1 wherein: The heat sealing assembly (22) comprises a fixed frame (221) fixedly installed on the top rear side of the workbench (1), a gas cylinder (222) is fixedly installed on the top of the fixed frame (221), a first heat sealing pressing strip (223) is fixedly installed on the output end of the gas cylinder (222), a second heat sealing pressing strip (224) is fixedly installed on the bottom of the inner cavity of the fixed frame (221), the output end of the gas cylinder (222) is movably penetrated through the top of the fixed frame (221) and fixed on the top of the first heat sealing pressing strip (223) for driving the first heat sealing pressing strip (223) to descend through the second heat sealing pressing strip (224) to seal the plastic bag.

6. A plastic bag heat sealing apparatus as defined in claim 1 wherein: The collecting assembly (23) comprises a collecting frame (231) fixedly installed on the right side of the workbench (1) for containing the sealed plastic bag, a connecting frame (232) is fixedly installed on the front side of the inner cavity of the collecting frame (231), and a resisting plate (233) is fixedly installed on the top of the connecting frame (232) for taking down the sealed plastic bag.

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