CN215399687U

CN215399687U - Automatic heat sealing mechanism for plastic bags

Info

Publication number: CN215399687U
Application number: CN202121635920.2U
Authority: CN
Inventors: 王炎欢; 段安斌; 张瑞; 王亚军; 张春; 杜井; 张�林; 周布明
Original assignee: Hefei Zhengyuan Intelligent Packaging Technology Co ltd
Current assignee: Hefei Zhengyuan Intelligent Packaging Technology Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-01-04
Anticipated expiration: 2031-07-19

Abstract

The utility model discloses an automatic heat sealing mechanism for plastic bags, which relates to the field of sealing mechanisms and aims at solving the problems that the prior automatic heat sealing mechanism for plastic bags is easy to tear the sealed bag opening and is inconvenient to adjust and control the sealing temperature. The device can flexibly adjust the sealing temperature, can effectively prevent the sealing part from being torn, and can emboss the sealing part, thereby improving the aesthetic property of the sealing part.

Description

Automatic heat sealing mechanism for plastic bags

Technical Field

The utility model relates to the field of sealing mechanisms, in particular to an automatic heat sealing mechanism for plastic bags.

Background

After the materials are metered and packaged, the plastic bag is automatically sealed by heat, so that the automation of sealing is realized, the labor is saved, and the safety is improved. The automatic heat-sealing mechanism generally consists of: the annular sealing belt (protects the outer surface of the bag from being adhered to the heating block) → the heating unit (consisting of the heating block and realizing plastic bag heat sealing) → the compression roller pressing → the cooling unit (consisting of the cooling block and realizing plastic bag cooling) → the compression roller knurling. In the prior art, a heating unit and a cooling unit are respectively driven by an annular sealing belt, when a bag comes out of a heating area, because the annular sealing belt is not clamped, two side surfaces of a bag opening can generate a bag opening tearing phenomenon under the pulling of the tangential force of the annular sealing belt; the heating blocks are controlled by one heating block, so that the temperature of the heating blocks can not be better regulated and controlled when the heat seal is carried out on the bag opening under the condition of controlling more heating blocks by one heating block, the problem of unstable sealing of the bag opening or bag opening breakage can occur, and the effect of controlling one heating block is better in the actual production process; the cooling mode adopts a natural cooling area, and the natural cooling in different environments has the phenomenon of poor effect. Therefore, an automatic heat sealing mechanism for plastic bags is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides an automatic plastic bag heat sealing mechanism, which solves the problems that the opening of a sealed bag is easy to tear and the temperature of the sealed bag is inconvenient to adjust and control in the conventional automatic plastic bag heat sealing mechanism.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an automatic heat sealing mechanism for plastic bags comprises a sealing machine, a transmission shaft, an annular sealing belt, a heating block, a cooling block, a compression roller and a knurling roller, the upper side and the lower side of the front side of the sealing machine are both fixedly connected with limiting slide rods, the left end and the right end of each limiting slide rod are both slidably sleeved with lantern rings, the lower ends of the lantern rings at the two sides are both rotatably connected with rotating rods, a supporting plate is rotatably connected between the left rotating rod and the right rotating rod at the same upper side and the same lower side, a connecting rod is fixedly connected to one side surface of the supporting plate at the upper side and the lower side, which is close to each other, and is connected with a compression roller through a connecting rod, a first threaded cylinder is sleeved on the central rotating side of the front side surface of the sealing machine, and the equal thread bush in upper and lower both ends of a first screw thread section of thick bamboo is equipped with first screw rod, first screw rod and backup pad fixed connection, the knurling roller setting is provided with adjustment mechanism in the left side of capper and between the capper.

Preferably, the upper end and the lower end of the left side and the right side of the front side surface of the sealing machine are both embedded with motors, the output ends of the motors are fixedly connected with transmission shafts, and an annular sealing belt is sleeved between the left transmission shaft and the right transmission shaft on the same upper side and the same lower side.

Preferably, the right side endotheca in area is sealed to the annular is equipped with the heating piece, and the left side cover is equipped with the cooling block, the annular is sealed the in-band and is equipped with the compression roller, and between the cooling block and the heating block of compression roller setting left and right both sides, left and right both sides the cooling block is the setting of a plurality of arrays respectively with the heating block.

Preferably, adjustment mechanism includes a second screw thread section of thick bamboo, second screw rod, a second screw thread section of thick bamboo rotates the cover and establishes the left side at the capper leading flank, sets up the left side in the annular area of sealing simultaneously, the equal thread bush in upper and lower both ends of a second screw thread section of thick bamboo is equipped with the second screw rod.

Preferably, the ends of the upper and lower sides, which are close to each other, of the first screws are respectively sleeved at the upper and lower ends of the first threaded cylinder in a threaded manner, and one side surface, which is far away from each other, of the first screws extends to the upper and lower outer sides of the first threaded cylinder respectively and is fixedly connected with one side surface, which is close to each other, of the supporting plates at the upper and lower sides.

Preferably, each lantern ring is sleeved on the surface of the limiting slide rod on one side of the lantern ring in a sliding mode, and one ends, close to each other, of the rotating rods on the upper side and the lower side are respectively connected with one side face, far away from each other, of the supporting plate on the upper side and the supporting plate on the lower side in a rotating mode.

Preferably, the ends of the second screws on the upper and lower sides, which are close to each other, are respectively sleeved on the upper and lower ends of the second threaded cylinder in a threaded manner, and the ends, which are far away from each other, extend respectively on the upper and lower outer sides of the second threaded cylinder.

Preferably, the rear ends of the knurling rollers on the upper side and the lower side are fixedly connected with the extending ends of the second screws on the upper side and the lower side through connecting rods respectively.

Compared with the prior art, the utility model has the beneficial effects that:

1. through a sealing machine, a transmission shaft, an annular sealing belt, a heating block, a cooling block, a compression roller, a knurling roller, a limiting slide bar, a lantern ring, a rotating rod, a supporting plate, a connecting rod, a first threaded cylinder, a first screw rod, a second threaded cylinder and a second screw rod, when in use, a bag opening of a packaging bag slides from right to left through the annular sealing belts on the upper side and the lower side, the cooling block and the heating block are respectively arranged on the left side and the right side in the annular sealing belts on the upper side and the lower side, so that the packaging bag can be heated and sealed when passing through the annular sealing belts on the upper side and the lower side from right to left, then cooled, meanwhile, due to the compression roller arranged between the heating block and the cooling block, the sealing part can be timely compressed and prevented from being torn after the heating and sealing are finished, then the packaging bag can be moved to the annular sealing belt in a cooling block area to be cooled, and meanwhile, the arrangement of an array is arranged between each heating block and each cooling block, the device can be independently controlled, so that the heating and cooling temperatures can be conveniently adjusted, the temperature can be flexibly adjusted and controlled, meanwhile, the sealing position can be clamped and compressed in time after heating, and the sealing position is effectively prevented from being torn;

2. meanwhile, when the packaging bag is cooled, the packaging bag is sealed by the annular sealing strips on the upper side and the lower side and slides out on the left side, the packaging bag can be embossed between the knurling rollers arranged on the upper side and the lower side of the left side, the sealing position can be further embossed, the attractiveness of the sealing position is improved, the second threaded cylinders can be rotated to drive the second threaded rods on the upper side and the lower side and the knurling rollers to be close to each other, the compression degree of the sealing position is adjusted, and different embossing effects are obtained.

The device can flexibly adjust the sealing temperature, can effectively prevent the sealing part from being torn, and can emboss the sealing part, thereby improving the aesthetic property of the sealing part.

Drawings

Fig. 1 is a sectional view showing the structure of an automatic heat sealing mechanism for plastic bags according to the present invention.

Fig. 2 is a sectional view showing the left side structure of the automatic heat sealing mechanism for plastic bags according to the present invention.

Fig. 3 is a sectional view showing the right side structure of the automatic heat sealing mechanism for plastic bags according to the present invention.

Reference numbers in the figures: the sealing machine comprises a sealing machine 1, a transmission shaft 2, an annular sealing belt 3, a heating block 4, a cooling block 5, a pressing roller 7, a knurling roller 8, a limiting sliding rod 9, a lantern ring 10, a rotating rod 11, a supporting plate 12, a connecting rod 13, a first threaded cylinder 14, a first screw rod 15, a second threaded cylinder 16 and a second screw rod 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

Example 1

Referring to fig. 1-3, an automatic heat sealing mechanism for plastic bags comprises a sealing machine 1, a transmission shaft 2, an annular sealing belt 3, a heating block 4, a cooling block 5, a compression roller 7 and a knurling roller 8, wherein the upper and lower sides of the front side surface of the sealing machine 1 are fixedly connected with limit slide bars 9, the left and right ends of the limit slide bars 9 are respectively sleeved with a lantern ring 10 in a sliding manner, the lower ends of the lantern rings 10 at the two sides are respectively and rotatably connected with a rotating rod 11, a support plate 12 is respectively and rotatably connected between the left and right rotating rods 11 at the same upper and lower sides, one side surface of the support plate 12 at the upper and lower sides, which is close to each other, is respectively and fixedly connected with a connecting rod 13, the compression roller 7 is connected through the connecting rod 13, a first threaded cylinder 14 is sleeved on the middle rotating side surface of the front side surface of the sealing machine 1, a first screw 15 is respectively and is fixedly connected with the support plate 12, the knurling roller 8 is arranged on the left side of the sealing machine 1 and is provided with an adjusting mechanism between the knurling roller and the sealing machine 1, motors are embedded at the upper and lower ends of the left and right sides of the front side surface of the sealing machine 1, the output end of the motor is fixedly connected with the transmission shaft 2, an annular sealing belt 3 is sleeved between the left and right transmission shafts 2 on the same upper and lower sides, a heating block 4 is sleeved in the right side of the annular sealing belt 3, a cooling block 5 is sleeved on the left side of the annular sealing belt 3, a compression roller 7 is sleeved in the annular sealing belt 3, the compression roller 7 is arranged between the cooling block 5 and the heating block 4 on the left and right sides, the cooling block 5 and the heating block 4 on the left and right sides are respectively arranged in a plurality of arrays, the adjusting mechanism comprises a second threaded cylinder 16 and a second screw rod 17, the second threaded cylinder 16 is rotatably sleeved on the left side of the front side surface of the sealing machine 1 and is arranged on the left side of the annular sealing belt 3, and the upper portion of the second threaded cylinder 16, The lower two ends are all sheathed with a second screw rod 17 in a threaded manner, the ends of the first screw rods 15 close to each other at the upper and lower two sides are respectively sheathed at the upper and lower two ends of the first threaded cylinder 14 in a threaded manner, the sides far away from each other extend at the upper and lower two outer sides of the first threaded cylinder 14 respectively and are fixedly connected with the sides of the support plates 12 close to each other at the upper and lower two sides, each lantern ring 10 is sheathed on the surface of the limit slide rod 9 at one side respectively in a sliding manner, the ends of the rotating rods 11 close to each other at the upper and lower two sides are respectively connected with the sides of the support plates 12 far away from each other at the upper and lower two sides in a rotating manner, when the packaging bag is sealed, the bag mouth can pass through the annular sealing belts 3 at the upper and lower two sides and slide from right to left, and then under the heating of the heating blocks 4 sheathed at the right sides of the annular sealing belts 3 at the upper and lower two sides and under the cooling of the cooling blocks 5 at the left side of the annular sealing belts, the left side and the right side of the annular sealing belt 3 can respectively cool and heat the packaging bag, the packaging bag is arranged between the annular sealing belts 3 at the upper side and the lower side in a sliding manner from right to left, and then the packaging bag can be heated and sealed firstly and then cooled, meanwhile, because the compression roller 7 is arranged between the heating block 4 and the cooling block 5, and further the first threaded barrel 14 can be rotated in advance, the first threaded rod 15 sleeved with the internal thread thereof is driven to move close to or away from each other, and further the supporting plates 12 at the upper side and the lower side can be driven to move close to or away from each other, because each supporting plate 12 is rotatably connected with the rotating rod 11 through rotating the lantern ring 10 at one side respectively, and the lantern ring 10 is sleeved with the limiting slide rod 9 in a sliding manner, when the supporting plate 12 moves up and down, the supporting plate can be effectively stabilized, and further the connecting rod 13 and the compression roller 7 can be pushed to close to or away from each other, make the interval between the compression roller 7 of both sides about can adjusting, and then can promote about both sides annular seal area 3 be close to the packing bag sack in the middle of the side each other and compress tightly, and then can seal the department to the packing bag after the heating and compress tightly, then remove to cool off on 5 regional annular seal area 3 of cooling block and carry out the cooling, be the setting of array between each heating block 4 and the cooling block 5 simultaneously, and can independent control, make can be convenient to the heating, and the refrigerated temperature is adjusted, and generally be the water-cooling setting in the cooling block, but not only be limited to the water-cooling, still can be for the forced air cooling, oil cooling etc., make that the device can be nimble regulate and control heating temperature and cooling temperature, can in time after the heating carry out the centre gripping to the department of sealing and compress tightly, the effectual tearing that has prevented the department of sealing.

Example 2

Referring to fig. 1 to 3, in the case where the other parts are the same as those of embodiment 1, this embodiment is different from embodiment 1 in that: the ends of the second screw rods 17 close to each other on the upper and lower sides are respectively sleeved on the upper and lower ends of the second threaded cylinder 16 in a threaded manner, and the ends far away from each other extend to the upper and lower outer sides of the second threaded cylinder 16, the rear ends of the knurl rollers 8 on the upper and lower sides are respectively fixedly connected with the extending ends of the second screw rods 17 on the upper and lower sides through connecting rods, and meanwhile, when the packaging bag slides out from the left side of the annular sealing belt 3 on the upper and lower sides during cooling, the sealing part can be embossed through the knurl rollers 8 arranged up and down on the left side, so that the beauty of the sealing part is improved, and the second threaded cylinder 16 can be rotated to drive the second screw rods 17 sleeved with the upper and lower ends in the second threaded cylinder 16 and the knurl rollers to be close to or far away from each other, so that the distance between the knurl rollers 8 on the upper and lower sides can be adjusted, and further the compression degree of the sealing part can be adjusted, to obtain different embossing effects.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. An automatic heat sealing mechanism for plastic bags comprises a sealing machine (1), a transmission shaft (2), an annular sealing belt (3), a heating block (4), a cooling block (5), a compression roller (7) and a knurling roller (8), and is characterized in that the upper side and the lower side of the front side surface of the sealing machine (1) are fixedly connected with limit slide bars (9), the left end and the right end of each limit slide bar (9) are respectively sleeved with a lantern ring (10) in a sliding manner, the lower ends of the lantern rings (10) on the two sides are respectively connected with a rotating rod (11) in a rotating manner, a support plate (12) is respectively connected between the left rotating rod (11) and the right rotating rod (11) on the same upper side and the lower side in a rotating manner, a connecting rod (13) is respectively fixedly connected to one side surface of the support plates (12) on the upper side and the lower side, the compression roller (7) is connected through the connecting rod (13), a first threaded barrel (14) is sleeved on the rotating sleeve in the center of the front side surface of the sealing machine (1), and the equal thread bush in upper and lower both ends of first screw thread section of thick bamboo (14) is equipped with first screw rod (15), first screw rod (15) and backup pad (12) fixed connection, knurling roller (8) set up in the left side of capper (1) and be provided with adjustment mechanism between capper (1).

2. The automatic heat-sealing mechanism for the plastic bags according to claim 1, wherein the upper and lower ends of the left and right sides of the front side of the sealing machine (1) are embedded with motors, the output ends of the motors are fixedly connected with transmission shafts (2), and an annular sealing belt (3) is sleeved between the left and right transmission shafts (2) on the same upper and lower sides.

3. An automatic heat sealing mechanism for plastic bags according to claim 2, wherein the right side of the annular sealing belt (3) is sleeved with a heating block (4) and the left side is sleeved with a cooling block (5), the annular sealing belt (3) is sleeved with a compression roller (7), the compression roller (7) is arranged between the cooling block (5) and the heating block (4) on the left and right sides, and the cooling block (5) and the heating block (4) on the left and right sides are respectively arranged in a plurality of arrays.

4. The automatic heat-sealing mechanism for the plastic bags according to claim 3, wherein the adjusting mechanism comprises a second threaded cylinder (16) and a second screw (17), the second threaded cylinder (16) is rotatably sleeved on the left side of the front side surface of the sealing machine (1) and is arranged on the left side of the annular sealing belt (3), and the second screw (17) is threadedly sleeved on both the upper end and the lower end of the second threaded cylinder (16).

5. An automatic heat-sealing mechanism for plastic bags according to claim 4, wherein the ends of the first screws (15) close to each other on the upper and lower sides are respectively screw-threaded on the upper and lower ends of the first screw cylinder (14), and the side surfaces far away from each other extend on the upper and lower outer sides of the first screw cylinder (14) and are fixedly connected with the side surfaces close to each other of the support plates (12) on the upper and lower sides.

6. An automatic heat-sealing mechanism for plastic bags according to claim 5, wherein each of said sleeves (10) is slidably fitted over the surface of a respective one of said stop slide bars (9), and the ends of said rotary bars (11) at the upper and lower sides, which are close to each other, are rotatably connected to the side surfaces of said support plates (12) at the upper and lower sides, which are away from each other.

7. An automatic heat-sealing mechanism for plastic bags according to claim 4, wherein the ends of the second screws (17) on the upper and lower sides close to each other are respectively threaded onto the upper and lower ends of the second threaded cylinder (16), and the ends far away from each other extend respectively onto the upper and lower outer sides of the second threaded cylinder (16).

8. An automatic heat-sealing mechanism for plastic bags according to claim 7, wherein the rear ends of said knurling rollers (8) on both upper and lower sides are fixedly connected with the extending ends of the second screws (17) on both upper and lower sides respectively through connecting rods.