Sealing mechanism for plastic bag making machine

Abstract

The utility model belongs to the technical field of plastic bag processing equipment, in particular to a sealing mechanism for a plastic bag making machine, which comprises a main frame, a control panel and a linkage shaft, the control panel is arranged on the outer end face of the main frame, and the linkage shaft is connected to the inner side of the main frame. Through the arrangement of the driving side driving wheel, the driven side driving wheel, the first sealing clamping block and the second sealing clamping block, an operator controls the motor through the control panel when the equipment works, and the driving side driving wheel is matched with the driven side driving wheel and the linkage shaft; according to the plastic bag sealing device, the first sealing clamping block and the second sealing clamping block can be stably driven, the first sealing clamping block and the second sealing clamping block can do regular circle center track movement through the arrangement of an eccentric block and a linkage frame, so that a clamping column makes contact with a sealing clamping groove, and the plastic bag sealing device can fully automatically seal a plastic bag; not only are the automation level and the operation efficiency of plastic bag sealing operation improved, but also the investment of labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag processing equipment, in particular to a sealing mechanism for a plastic bag making machine. Background Art

[0002] Plastic bags, as tools for containing items, are widely used due to their high cost performance, high durability, and simple structure. During the production and processing of plastic bags, it is necessary to seal non-opening positions, so a sealing mechanism for a plastic bag making machine will be used.

[0003] The prior art has the following deficiencies: In the "sealing mechanism for a plastic bag making machine" with the publication number of CN220904274U in the prior art, "it includes a sealing table and a base, and support plates are symmetrically installed on both sides of the top of the sealing table, and adjustment grooves are provided at the top positions of the surfaces of the support plates";

[0004] The above structure adopts an adjustment cylinder, a moving seat, and a bearing plate. During actual use, personnel can adjust the position of the moving seat according to the different sizes of plastic bags to be sealed. However, this structure only makes changes to size adjustment and does not make targeted improvements to the sealing of plastic bags. The automation degree of the sealing step of this structure is low, and the sealing speed of plastic bags is slow and the efficiency is low. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a sealing mechanism for a plastic bag making machine, which solves the problems of low automation degree and low sealing efficiency existing nowadays.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A sealing mechanism for a plastic bag making machine includes a main body frame, a control panel, and a linkage shaft. The control panel is arranged on the outer end face of the main body frame, the linkage shaft is connected to the inner side of the main body frame, and a motor is arranged on the outer side of the main body frame;

[0007] A driving wheel on the active side is arranged at one outer end of the main body frame, an eccentric block is arranged at the inner end of the main body frame, a linkage frame is connected to the outer side of the eccentric block, a first sealing clamp block is arranged at the side end of the linkage frame, a clamping column is arranged at the side end of the first sealing clamp block, a second sealing clamp block is arranged on the other side of the first sealing clamp block with the middle part of the main body frame as the axis, a heating component is arranged at the upper end of the second sealing clamp block, a sealing clamp groove is opened at the side end of the second sealing clamp block, and a driving wheel on the driven side is connected to the other side of the linkage shaft;

[0008] The driving wheel on the active side further includes a driven wheel on the active side, a transmission disc on the active side, a belt on the active side, and a transmission shaft on the active side. The tooth grooves of the driven wheel on the active side are engaged with the driving wheel on the active side and are movably connected to the outer end of the main body frame. There are two sets of the transmission discs on the active side, one of which is fixedly connected to the outer side of the driven wheel on the active side. The belt on the active side is sleeved on the two sets of transmission discs on the active side. The transmission shaft on the active side is connected to the inner end face of the transmission disc on the active side at the lower end.

[0009] As a preferred technical solution of the present utility model, the driven wheel on the driven side further includes a driven wheel on the driven side, a transmission disc on the driven side, a belt on the driven side, and a transmission shaft on the driven side. The tooth grooves of the driven wheel on the driven side are engaged with the driving wheel on the driven side and are movably connected to the outer end of the main body frame. There are two sets of the transmission discs on the driven side, one of which is fixedly connected to the outer side of the driven wheel on the driven side. The belt on the driven side is sleeved on the two sets of transmission discs on the driven side. The transmission shaft on the driven side is connected to the inner end face of the transmission disc on the driven side at the lower end.

[0010] As a preferred technical solution of the present utility model, there are two sets of the driving wheel on the active side, the driven wheel on the driven side, and the linkage shaft respectively. The linkage shaft extends into the main body frame through both ends and is respectively movably connected to the driving wheel on the active side and the driven wheel on the driven side.

[0011] As a preferred technical solution of the present utility model, the whole main body frame is composed of two identical structures and is symmetrically distributed.

[0012] As a preferred technical solution of the present utility model, the driven wheel on the active side and the driven wheel on the driven side respectively penetrate through the main body frames on both sides and establish a movable connection relationship with the eccentric blocks. There are eight sets of the eccentric blocks, and the eccentric blocks at the bottom end also establish a movable connection relationship with the inner ends of the transmission shaft on the active side and the transmission shaft on the driven side.

[0013] As a preferred technical solution of the present utility model, there are four sets of the linkage frames, and their overall shape is "7"-shaped.

[0014] As a preferred technical solution of the present utility model, the first sealing clip block and the second sealing clip block move along a circular track through the linkage frame, and the number of the clamping columns is the same as that of the sealing clip grooves and their sizes correspond to each other.

[0015] Compared with the prior art, the present utility model provides a sealing mechanism for a plastic bag making machine, which has the following beneficial effects:

[0016] The sealing mechanism for the plastic bag making machine is equipped with a driving wheel on the active side, a driven wheel on the driven side, a first sealing clamp block, and a second sealing clamp block. When the equipment is operating, the operator controls the motor through the control panel. After the two motors are started, they drive the two driving wheels on the active side. When the driving wheel on the active side rotates, it drives the driven wheel on the active side to rotate. When the driven wheel on the active side rotates, it causes the lower driving shaft on the active side to rotate through the transmission disc and belt on the active side. At the same time, when the driving wheel on the active side rotates, the linkage shaft is also driven to rotate. The driven wheel on the driven side at the other end of the linkage shaft drives the driven wheel on the driven side, the transmission disc on the driven side, the belt on the driven side, and the driven shaft on the driven side to be driven in the same way as the active side. The two driving wheels on the active side and the two driven wheels on the driven side jointly drive the eccentric block to rotate during the rotation. The eccentric blocks on both sides drive the linkage frame to rotate. When the linkage frames on both sides rotate, the first sealing clamp block and the second sealing clamp block rotate in a circular trajectory. Place the part of the plastic bag to be sealed between the first sealing clamp block and the second sealing clamp block. The first sealing clamp block and the second sealing clamp block come into contact on the side of the circular motion trajectory of the center. The clamping column squeezes the plastic bag into the sealing clamp groove after being heated by the heating component. The high temperature causes the plastic bag to achieve the sealing effect. The above process occurs during one complete rotation of the eccentric block;

[0017] Through the above process, the equipment can have the following beneficial effects:

[0018] Through the cooperation of the driving wheel on the active side, the driven wheel on the driven side, and the linkage shaft, the first sealing clamp block and the second sealing clamp block can be stably driven. Through the setting of the eccentric block and the linkage frame, the first sealing clamp block and the second sealing clamp block can make a regular circular trajectory movement, so that the clamping column comes into contact with the sealing clamp groove, enabling the equipment to completely automate the sealing of plastic bags. This not only improves the automation level and operation efficiency of plastic bag sealing operations but also reduces the input of labor costs. Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of the driven side transmission structure of the present utility model;

[0021] Figure 3 It is a schematic diagram of the active side transmission structure of the present utility model;

[0022] Figure 4 It is a schematic diagram of the side end structure of the second sealing clamp block of the present utility model;

[0023] Figure 5 It is a schematic diagram of the side end structure of the first sealing clamp block of the present utility model.

[0024] In the figure: 1. Main body frame; 2. Control panel; 3. Linkage shaft; 4. Driving wheel on the active side; 401. Driven wheel on the active side; 402. Driving disc on the active side; 403. Belt on the active side; 404. Transmission shaft on the active side; 5. Motor; 6. Eccentric block; 7. Linkage frame; 8. First sealing clamp block; 9. Clamping column; 10. Second sealing clamp block; 11. Heating component; 12. Sealing clamp groove; 13. Driving wheel on the driven side; 1301. Driven wheel on the driven side; 1302. Driving disc on the driven side; 1303. Belt on the driven side; 1304. Transmission shaft on the driven side. Specific implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1-5 , in this implementation: The sealing mechanism for a plastic bag making machine includes a main body frame 1, a control panel 2, and a linkage shaft 3. The control panel 2 is arranged on the outer end face of the main body frame 1, and the control panel 2 controls the operation of the motor 5. The linkage shaft 3 is connected to the inside of the main body frame 1, and the linkage shaft 3 transmits the power of the driving wheel 4 on the active side to the driving wheel 13 on the driven side. A motor 5 is arranged on the outside of the main body frame 1, and the motor 5 drives the driving wheel 4 on the active side;

[0027] A driving wheel 4 on the active side is arranged at one outer end of the main body frame 1. The driving wheel 4 on the active side drives the eccentric block 6 and the driven wheel 401 on the active side to rotate. An eccentric block 6 is arranged at the inner end of the main body frame 1. The eccentric block 6 makes the linkage frame 7 rotate along a fixed track. The outside of the eccentric block 6 is connected with a linkage frame 7. The linkage frame 7 fixes and links the eccentric blocks 6 at the upper and lower ends. A first sealing clamp block 8 is arranged at the side end of the linkage frame 7. The first sealing clamp block 8 and the second sealing clamp block 10 clamp and seal the plastic bag. A clamping column 9 is arranged at the side end of the first sealing clamp block 8. The clamping column 9 and the sealing clamp groove 12 cooperate with the heating component 11 to seal the plastic bag. A second sealing clamp block 10 is arranged on the other side of the first sealing clamp block 8 with the middle of the main body frame 1 as the axis. A heating component 11 is arranged at the upper end of the second sealing clamp block 10. A sealing clamp groove 12 is opened at the side end of the second sealing clamp block 10. The other side of the linkage shaft 3 is connected with a driving wheel 13 on the driven side. The driving wheel 13 on the driven side transmits the power to the driven wheel 1301 on the driven side;

[0028] The driving wheel 4 on the active side further includes a driven wheel 401 on the active side, a driving disc 402 on the active side, a belt 403 on the active side, and a transmission shaft 404 on the active side. The tooth grooves of the driven wheel 401 on the active side are engaged with the driving wheel 4 on the active side and are movably connected to the outer end of the main body frame 1. There are two sets of the driving discs 402 on the active side, one of which is fixedly connected to the outside of the driven wheel 401 on the active side. The belt 403 on the active side is sleeved on the two sets of driving discs 402 on the active side, and the transmission shaft 404 on the active side is connected to the inner end face of the driving disc 402 on the active side at the lower end.

[0029] In this embodiment, the driven wheel 13 on the driven side further includes a driven wheel 1301 on the driven side, a driving disc 1302 on the driven side, a belt 1303 on the driven side, and a transmission shaft 1304 on the driven side. The tooth grooves of the driven wheel 1301 on the driven side are engaged with the driven wheel 13 on the driven side and are movably connected to the outer end of the main body frame 1. There are two sets of the driving discs 1302 on the driven side, one of which is fixedly connected to the outside of the driven wheel 1301 on the driven side. The belt 1303 on the driven side is sleeved on the two sets of driving discs 1302 on the driven side, and the transmission shaft 1304 on the driven side is connected to the inner end face of the driving disc 1302 on the driven side at the lower end; there are two sets of the driving wheel 4 on the active side, the driven wheel 13 on the driven side, and the linkage shaft 3 respectively, and the linkage shaft 3 extends into the main body frame 1 through both ends and is movably connected to the driving wheel 4 on the active side and the driven wheel 13 on the driven side respectively;

[0030] Specifically, by providing two sets of the driving wheel 4 on the active side, the driven wheel 13 on the driven side, and the linkage shaft 3 that are symmetrically distributed, the power of the single-side motor 5 can be completely transmitted to the other side, and a stable transmission path can be established;

[0031] In this embodiment, the main body frame 1 is integrally composed of two identical structures and is symmetrically distributed; the driven wheel 401 on the active side and the driven wheel 1301 on the driven side respectively penetrate through the main body frames 1 on both sides and establish a movable connection relationship with the eccentric blocks 6. There are eight sets of the eccentric blocks 6, and the eccentric blocks 6 at the bottom end also establish a movable connection relationship with the inner ends of the transmission shaft 404 on the active side and the transmission shaft 1304 on the driven side;

[0032] Specifically, the eight sets of eccentric blocks 6 are respectively connected to the linkage frame 7 at the upper and lower positions, so that the linkage frame 7 can move along a fixed trajectory according to the directions of the eccentric blocks 6 during the rotation process;

[0033] In this embodiment, there are four sets of the linkage frames 7, and their overall shape is "7"; the first sealing clip block 8 and the second sealing clip block 10 move along a circular trajectory through the linkage frame 7, and the number of the clamping columns 9 is the same as that of the sealing clip grooves 12 and their sizes correspond to each other.

[0034] Working principle and usage process of the utility model: When the device operates, the operator controls the motor 5 through the control panel 2. After the two motors 5 are started, they drive the two active side drive wheels 4. When the active side drive wheels 4 rotate, they drive the active side driven wheels 401 to rotate. When the active side driven wheels 401 rotate, they drive the lower active side transmission shaft 404 to rotate through the active side transmission disc 402 and the active side belt 403. At the same time, when the active side drive wheels 4 rotate, the linkage shaft 3 is also driven to rotate. The driven side drive wheel 13 at the other end of the linkage shaft 3 drives the driven side driven wheel 1301, the driven side transmission disc 1302, the driven side belt 1303, and the driven side transmission shaft 1304 to transmit in the same way as the active side. The two active side drive wheels 4 and the two driven side drive wheels 13 jointly drive the eccentric block 6 to rotate during rotation. The two side eccentric blocks 6 drive the linkage frame 7 to rotate. When the two side linkage frames 7 rotate, the first sealing clamp block 8 and the second sealing clamp block 10 rotate in a circular trajectory. Place the part of the plastic bag that needs to be sealed between the first sealing clamp block 8 and the second sealing clamp block 10. The first sealing clamp block 8 and the second sealing clamp block 10 are in contact with each other on the side of the circular motion trajectory of the center of the circle. The clamping column 9 squeezes the plastic bag into the sealing clamp groove 12 heated by the heating component 11. The high temperature causes the plastic bag to achieve the sealing effect. The above process all occurs during one complete rotation of the eccentric block 6.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sealing mechanism for a plastic bag making machine, comprising a main frame (1), a control panel (2), and a linkage shaft (3), wherein the control panel (2) is arranged on the outer end surface of the main frame (1), the linkage shaft (3) is connected to the inner side of the main frame (1), and a motor (5) is arranged on the outer side of the main frame (1), characterized in that: An active side driving wheel (4) is arranged at the outer end of one side of the main frame (1), an eccentric block (6) is arranged at the inner end of the main frame (1), a linkage frame (7) is connected to the outer side of the eccentric block (6), a first sealing clamp (8) is arranged at the side end of the linkage frame (7), a clamping column (9) is arranged at the side end of the first sealing clamp (8), a second sealing clamp (10) is arranged at the other side of the first sealing clamp (8) with the middle part of the main frame (1) as the axis, a heating component (11) is arranged at the upper end of the second sealing clamp (10), a sealing clamp groove (12) is provided at the side end of the second sealing clamp (10), and a driven side driving wheel (13) is connected to the other side of the linkage shaft (3); The active side driving wheel (4) further comprises an active side driven wheel (401), an active side transmission disc (402), an active side belt (403), and an active side transmission shaft (404); the tooth groove of the active side driven wheel (401) meshes with the active side driving wheel (4) and is movably connected to the outer end of the main frame (1); the active side transmission disc (402) is provided with two groups, one of which is fixedly connected to the outer side of the active side driven wheel (401); the active side belt (403) is sleeved on the two groups of active side transmission discs (402); and the active side transmission shaft (404) is connected to the inner end surface of the active side transmission disc (402) at the lower end.

2. The sealing mechanism for a plastic bag making machine according to claim 1, characterized in that: The driven side driving wheel (13) further comprises a driven side driven wheel (1301), a driven side transmission disc (1302), a driven side belt (1303), and a driven side transmission shaft (1304); the tooth groove of the driven side driven wheel (1301) is meshed with the driven side driving wheel (13) and is movably connected to the outer end of the main frame (1); two groups of the driven side transmission disc (1302) are provided, one group of which is fixedly connected to the outer side of the driven side driven wheel (1301); the driven side belt (1303) is sleeved on the two groups of driven side transmission discs (1302); and the driven side transmission shaft (1304) is connected to the inner end surface of the driven side transmission disc (1302) at the lower end.

3. The sealing mechanism for a plastic bag making machine according to claim 1, characterized in that: The active side driving wheel (4), the driven side driving wheel (13) and the linkage shaft (3) are each provided with two groups, and the linkage shaft (3) extends into the interior of the main frame (1) through both ends and movably connects the active side driving wheel (4) and the driven side driving wheel (13) respectively.

4. The sealing mechanism for a plastic bag making machine according to claim 1, characterized in that: The main frame (1) as a whole consists of two parts with the same structure and symmetrically distributed.

5. The sealing mechanism for a plastic bag making machine according to claim 1, characterized in that: The active side driven wheel (401) and the passive side driven wheel (1301) respectively penetrate the main frame (1) on both sides and establish a movable connection relationship with the eccentric block (6). The eccentric block (6) is provided with eight groups, and the eccentric block (6) at the bottom end is also in a movable connection relationship with the active side transmission shaft (404) and the inner end of the driven side transmission shaft (1304).

6. The sealing mechanism for a plastic bag making machine according to claim 1, characterized in that: The linkage frames (7) are provided in four groups, and their overall shape is a "7" shape.

7. The sealing mechanism for a plastic bag making machine according to claim 1, characterized in that: The first sealing clamp block (8) and the second sealing clamp block (10) move in a circular trajectory through the linkage frame (7), and the clamping columns (9) and the sealing clamping grooves (12) are the same in number and have corresponding sizes.

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