CN218966295U

CN218966295U - Plastic bag sealing device

Info

Publication number: CN218966295U
Application number: CN202223437343.3U
Authority: CN
Inventors: 钟泽敏
Original assignee: Chongqing Zhongze Plastic Products Co ltd
Current assignee: Chongqing Zhongze Plastic Products Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-05-05
Anticipated expiration: 2032-12-19

Abstract

The utility model belongs to the technical field of plastic bag processing, in particular to a plastic bag sealing device which comprises a fixing frame; install step motor on the mount roof, mount roof inner wall is located the step motor below and installs the guide rail, install the slider on the guide rail, step motor's output shaft bottom mounting has the lead screw, the lead screw runs through in the slider, be connected with the pressure roller through the axis of rotation on the link, the welding has the spring on the fixed block, the other end welding of spring is on the connecting rod lateral wall, drives the lead screw through step motor operation and rotates, has realized slider reciprocating motion on the lead screw, at slider gliding in-process down, presses the roller to roll on the plastic bag, and the flattening and the fixed to the plastic bag of realization are at slider gliding in-process upwards, because the shrinkage force of spring for two pressure rollers resume normal position, are convenient for press the roller and press the plastic bag voluntarily, are of being favorable to reducing plastic seal surface wrinkle.

Description

Plastic bag sealing device

Technical Field

The utility model relates to the technical field of plastic bag processing, in particular to a plastic bag sealing device.

Background

The plastic bag is made of nitrocellulose as a main raw material, is an indispensable article in daily life, is often used for containing other articles, is widely used because of the advantages of low cost, light weight, large capacity and convenient storage, and needs to be sealed by a plastic bag sealing device in the production process.

The existing plastic bag sealing device consists of a workbench, a heating knife, a conveyor belt and other structures, the plastic bag is conveyed to the position below the heating knife by the conveyor belt, and the plastic bag is heat-sealed by the heating knife, so that the plastic bag is sealed.

However, the existing plastic bag sealing device cannot automatically press the plastic bag to fix and flatten the plastic bag, so that after sealing, the surface of the plastic bag is more wrinkled to affect the appearance, meanwhile, the plastic bag needs to be divided into a section in the production process of the plastic bag, and the plastic bag is convenient to tear in use, but the existing device divides the plastic bag sealing and the plastic bag cutting into different steps, and the plastic bag sealing and the plastic bag cutting are completed by different machines, so that energy is wasted; accordingly, a plastic bag sealing device is proposed to solve the above-mentioned problems.

Disclosure of Invention

In order to make up the defects of the prior art and solve the problems in the prior art, the utility model provides a plastic bag sealing device.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a plastic bag sealing device, which comprises a fixing frame; the fixed frame top plate is provided with a stepping motor, the inner wall of the fixed frame top plate is positioned below the stepping motor and provided with a guide rail, the guide rail is provided with a sliding block, an output shaft of the stepping motor penetrates through the fixed frame top plate and extends to the inner wall of the guide rail top plate, the bottom end of the output shaft of the stepping motor is fixed with a screw rod, the screw rod is positioned between the guide rail top plate and the bottom plate, the screw rod penetrates through the sliding block, the side wall of the sliding block is welded with a positioning plate, the positioning plate is rotationally connected with a connecting rod through a pin, the bottom end of the connecting rod is welded with a connecting frame, the connecting frame is rotationally connected with a pressing roller through a rotating shaft, the lower end of the sliding block is fixedly provided with a first fixing rod, install the fixed block on the first dead lever, first dead lever is "cross" structural connection with the fixed block, the welding has the spring on the fixed block, the other end welding of spring is on the connecting rod lateral wall, drives the lead screw through the step motor operation and rotates, has realized slider reciprocating motion on the lead screw, at slider gliding in-process down, presses the roller to roll on the plastic bag, and the flattening and the fixed of plastic bag that realize are at slider gliding in-process upwards for two press the roller and resume the normal position, be convenient for press the roller and press the plastic bag voluntarily, be of value for reducing plastic seal surface fold.

Preferably, the first dead lever bottom fixed mounting has the second dead lever, first dead lever is connected perpendicularly with the second dead lever, second dead lever one end bottom fixedly connected with layering, install first electric plate on the layering, second dead lever other end bottom fixedly connected with saw-tooth sword, install the second electric plate on the saw-tooth sword, layering and saw-tooth sword are in parallel state, and layering and saw-tooth sword are located same horizontal position, mount internally mounted has the conveyer belt, the plastic bag has been placed on the conveyer belt, install the foot rest on the conveyer belt lateral wall, through installing layering and saw-tooth sword on the second dead lever, the conveyer belt transports plastic bag to layering and saw-tooth sword lower extreme, and two press rolls are fixed and are flattened the plastic bag, layering and saw-tooth sword down contact plastic bag, have realized the heat-seal and the cutting of plastic bag, are convenient for two steps to go on simultaneously, are of being of value for saving time and resource.

The utility model has the advantages that:

1. according to the utility model, the screw rod is driven to rotate through the operation of the stepping motor, so that the sliding block can reciprocate on the screw rod, the pressing rollers roll on the plastic bag in the process of sliding the sliding block downwards, the plastic bag is flattened and fixed, and the two pressing rollers restore to the original position due to the shrinkage force of the spring in the process of sliding the sliding block upwards, so that the pressing rollers can automatically press the plastic bag, and the plastic sealing surface wrinkles can be reduced.

2. According to the utility model, the pressing bar and the serrated knife are both arranged on the second fixing rod, the plastic bag is conveyed to the lower ends of the pressing bar and the serrated knife by the conveying belt, the plastic bag is fixed and flattened by the two pressing rollers, and the pressing bar and the serrated knife are downward contacted with the plastic bag, so that the heat sealing and cutting of the plastic bag are realized, the two steps are conveniently carried out simultaneously, and the time and resource are saved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic perspective view of a first embodiment;

fig. 2 is a schematic perspective view of a second perspective view according to the first embodiment;

FIG. 3 is an enlarged schematic perspective view of a side view in section of the first embodiment;

FIG. 4 is an enlarged schematic top sectional perspective view of the first embodiment;

fig. 5 is a schematic structural diagram of a first perspective view of the second embodiment.

In the figure: 1. a fixing frame; 2. a stepping motor; 3. a guide rail; 4. a slide block; 5. a screw rod; 6. a positioning plate; 7. a connecting rod; 8. a connecting frame; 9. pressing rollers; 10. a first fixing rod; 11. a fixed block; 12. a spring; 13. a second fixing rod; 14. pressing strips; 15. a first electric heating plate; 16. a serrated knife; 17. a second electric heating plate; 18. a conveyor belt; 19. a plastic bag; 20. a foot rest; 21. and (5) heat insulation cloth.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1 to 4, a plastic bag sealing device comprises a fixing frame 1; the device comprises a fixed frame 1, a stepping motor 2, a guide rail 3, a sliding block 4, a fixed block 11, a spring 12, a positioning plate 6, a connecting rod 7, a connecting frame 8, a pressing roller 9, a first fixed rod 10, a fixed block 11, a spring 12 and a connecting rod 7, wherein the stepping motor 2 is arranged on the top plate of the fixed frame 1, the guide rail 3 is arranged below the stepping motor 2, the sliding block 4 is arranged on the guide rail 3, an output shaft of the stepping motor 2 penetrates through the top plate of the fixed frame 1 and extends to the inner wall of the top plate of the guide rail 3, the screw 5 is arranged between the top plate of the guide rail 3 and a bottom plate, the screw 5 penetrates through the sliding block 4, the positioning plate 6 is welded on the side wall of the sliding block 4, the connecting rod 7 is connected with the connecting rod 7 through pin rotation, the connecting frame 8 is connected with the pressing roller 9 through rotation of a rotation shaft, a first fixed rod 10 is fixedly arranged at the lower end of the sliding block 4, the fixed block 11 is provided with the fixed block 11, the first fixed rod 10 is connected with the fixed block 11 in a cross structure, the spring 12 is welded on the fixed block 11, and the other end of the spring 12 is welded on the side wall of the connecting rod 7; during operation, before sealing the plastic bag 19, the plastic bag 19 needs to be fixed and flattened, the screw rod 5 is driven to rotate through the operation of the stepping motor 2, the sliding block 4 is enabled to reciprocate on the screw rod 5, the pressing roller 9 rolls on the plastic bag 19 in the process that the sliding block 4 slides downwards, the plastic bag 19 is flattened and fixed, and in the process that the sliding block 4 slides upwards, due to the shrinkage force of the springs 12, the two pressing rollers 9 are enabled to recover to be in situ, the pressing roller 9 is convenient to automatically press the plastic bag 19, and surface wrinkles of plastic sealing are reduced.

The bottom end of the first fixing rod 10 is fixedly provided with a second fixing rod 13, the first fixing rod 10 is vertically connected with the second fixing rod 13, the bottom of one end of the second fixing rod 13 is fixedly connected with a pressing strip 14, a first electric heating plate 15 is installed on the pressing strip 14, the bottom of the other end of the second fixing rod 13 is fixedly connected with a serrated knife 16, a second electric heating plate 17 is installed on the serrated knife 16, the pressing strip 14 and the serrated knife 16 are in a parallel state, the pressing strip 14 and the serrated knife 16 are positioned at the same horizontal position, a conveyor belt 18 is installed in the fixing frame 1, a plastic bag 19 is placed on the conveyor belt 18, and a foot rest 20 is installed on the side wall of the conveyor belt 18; during operation, in the process of sealing the plastic bag 19, the plastic bag 19 is cut at the same time, the pressing strip 14 and the serrated knife 16 are arranged on the second fixing rod 13, the conveying belt 18 conveys the plastic bag 19 to the lower ends of the pressing strip 14 and the serrated knife 16, the two pressing rollers 9 fix and flatten the plastic bag 19, the pressing strip 14 and the serrated knife 16 are downward contacted with the plastic bag 19, heat sealing and cutting of the plastic bag 19 are realized, two steps are convenient to be simultaneously carried out, and time and resources are saved.

Example two

Referring to fig. 5, in a first comparative example, as another embodiment of the present utility model, a heat-insulating cloth 21 is installed on the conveyor belt 18; in operation, by installing the heat insulating cloth 21, heat insulating protection of the conveyor belt 18 is achieved, while increasing friction is facilitated.

The working principle is that before the plastic bag 19 is sealed, the plastic bag 19 needs to be fixed and flattened, the screw rod 5 is driven to rotate through the operation of the stepping motor 2, the sliding block 4 is enabled to reciprocate on the screw rod 5, the pressing roller 9 rolls on the plastic bag 19 in the process that the sliding block 4 slides downwards, the plastic bag 19 is flattened and fixed, in the process that the sliding block 4 slides upwards, due to the shrinkage force of the springs 12, the two pressing rollers 9 are enabled to restore to original positions, the pressing roller 9 is convenient to automatically press the plastic bag 19, surface wrinkles of the plastic seal are reduced, the plastic bag 19 is cut in the process of sealing the plastic bag 19, the pressing bar 14 and the serrated knife 16 are both installed on the second fixing rod 13, the plastic bag 19 is conveyed to the lower ends of the pressing bar 14 and the serrated knife 16 by the conveying belt 18, the two pressing rollers 9 fix and flatten the plastic bag 19, the pressing bar 14 and the serrated knife 16 are enabled to contact the plastic bag 19 downwards, the two steps of heat sealing and cutting of the plastic bag 19 are achieved, and the two steps of being convenient to be carried out simultaneously, and time and resources are saved.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. A plastic bag sealing device, characterized in that: comprises a fixing frame (1); install step motor (2) on mount (1) roof, mount (1) roof inner wall is located step motor (2) below and installs guide rail (3), install slider (4) on guide rail (3), the output shaft of step motor (2) runs through mount (1) roof and extends to guide rail (3) roof inner wall, the output shaft bottom mounting of step motor (2) has lead screw (5), lead screw (5) are located between guide rail (3) roof and the bottom plate, lead screw (5) run through in slider (4), the welding has locating plate (6) on slider (4) lateral wall, be connected with connecting rod (7) through the pin rotation on locating plate (6), connecting rod (7) bottom welding has link (8), be connected with through the axis of rotation on link (8) and press roller (9).

2. A plastic bag closure apparatus according to claim 1, wherein: the sliding block is characterized in that a first fixing rod (10) is fixedly arranged at the lower end of the sliding block (4), a fixing block (11) is arranged on the first fixing rod (10), and the first fixing rod (10) is connected with the fixing block (11) in a cross-shaped structure.

3. A plastic bag closure apparatus according to claim 2, wherein: the fixing block (11) is welded with a spring (12), and the other end of the spring (12) is welded on the side wall of the connecting rod (7).

4. A plastic bag closure apparatus according to claim 2, wherein: the electric heating device is characterized in that a second fixing rod (13) is fixedly arranged at the bottom end of the first fixing rod (10), the first fixing rod (10) is vertically connected with the second fixing rod (13), a pressing strip (14) is fixedly connected to the bottom of one end of the second fixing rod (13), and a first electric heating plate (15) is arranged on the pressing strip (14).

5. A plastic bag closure apparatus according to claim 4, wherein: the bottom of the other end of the second fixing rod (13) is fixedly connected with a sawtooth knife (16), a second electric heating plate (17) is arranged on the sawtooth knife (16), the pressing strip (14) and the sawtooth knife (16) are in a parallel state, and the pressing strip (14) and the sawtooth knife (16) are positioned at the same horizontal position.

6. A plastic bag closure apparatus according to claim 1, wherein: the novel plastic bag is characterized in that a conveyor belt (18) is arranged in the fixing frame (1), a plastic bag (19) is placed on the conveyor belt (18), and a foot rest (20) is arranged on the side wall of the conveyor belt (18).