Packaging bag edge sealing and hot pressing device

Abstract

The utility model discloses a packaging bag edge sealing and hot pressing device, and relates to the technical field of packaging bag sealing. Comprising a bottom plate and a conveying assembly and a hot pressing assembly which are installed on the bottom plate, adjusting mechanisms are arranged on the two sides of the hot pressing assembly, a preheating mechanism is arranged on the adjusting mechanism on the bag inlet side of a packaging bag, and a pre-cooling mechanism is arranged on the adjusting mechanism on the bag outlet side of the packaging bag. According to the packaging bag edge sealing and hot pressing device, before edge sealing and hot pressing are conducted on packaging bags, the packaging bags are preliminarily preheated through the preheating mechanism through the conveying assembly, the hot pressing efficiency and effect of the hot pressing assembly can be improved, and meanwhile after hot pressing, the packaging bags can pass through the pre-cooling mechanism when being conveyed out through the conveying assembly; and the pre-cooling mechanism can cool the hot-pressed part of the hot-pressed packaging bag, the cooled hot-pressed part is firmer and firmer, the tearing resistance is higher, and the yield can be increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging bag sealing, in particular to a packaging bag edge sealing hot pressing device. Background Art

[0002] In current product packaging, the method of loading and sealing is generally used. Specifically, a bag with an upper opening is first prepared, then the product is loaded, and then the opening of the bag is sealed with a heat-sealing edge sealing machine to complete the packaging process.

[0003] The existing patent, CN117622632A discloses a rapid edge sealing device for product packaging, including a hot pressing mechanism and a conveying mechanism; the hot pressing mechanism includes a hot pressing main machine, which is fixedly mounted on a top plate, and the top plate is supported on a base by a hydraulic telescopic cylinder; the conveying mechanism includes two conveying rollers that are supported and rotatably arranged on a bracket assembly, and a conveyor belt is wound around the two conveying rollers, one end of one of the conveying rollers is coaxially fixedly mounted with a first linkage gear, and the other end is coaxially fixedly mounted with a rotating disk, and an anti-reversal component for limiting the reversal of the rotating disk is arranged on the bracket assembly, so that the conveyor belt can only move in one direction.

[0004] However, in this design, due to the use of conveyor belts for transmission, in actual production, when the processing speed increases, the contact time between the hot pressing mechanism and the film will be shortened, which may easily cause the film to be heated insufficiently and the molten film to be not fully contacted, resulting in failure to meet the edge sealing requirements and reduced edge sealing quality. Secondly, if the molten film cannot be cooled quickly, it may be damaged during the rapid transmission and pulling of the conveyor belt. Therefore, we developed a new packaging bag edge sealing hot pressing device. Utility Model Content

[0005] The utility model aims to provide a packaging bag edge sealing hot pressing device, which solves the problems mentioned in the background technology by arranging a preheating mechanism and a precooling mechanism.

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

[0007] The utility model is a packaging bag edge sealing hot pressing device, comprising a bottom plate and a conveying component and a hot pressing component installed on the bottom plate, characterized in that adjustment mechanisms are arranged on both sides of the hot pressing component, a preheating mechanism is arranged on the adjustment mechanism on the packaging bag inlet side, and a precooling mechanism is arranged on the adjustment mechanism on the packaging bag outlet side.

[0008] As a preferred technical solution of the utility model, the conveying assembly includes a conveying belt, a pulley and a motor that drives the pulley to rotate.

[0009] As a preferred technical solution of the utility model, the hot pressing assembly includes:

[0010] A heat-sealing base plate, both ends of which are fixed to the upper surface of the bottom plate through support columns;

[0011] Heat sealing guide rods, which are symmetrically arranged and pass through both ends of the heat sealing base plate, the upper end of the heat sealing guide rods is provided with a downward pressing connecting plate, and the lower end of the heat sealing guide rods is provided with a cylinder connecting plate;

[0012] A heat sealing cylinder, wherein the heat sealing cylinder is fixed to the lower surface of the heat sealing base plate, and the end of the piston rod of the heat sealing cylinder is fixedly connected to the upper surface of the cylinder connecting plate;

[0013] The heat-sealing base plate is provided with a lower sealing strip and a heat pressing strip;

[0014] An upper sealing strip matching the lower sealing strip is fixed to the lower surface of the pressing connecting plate;

[0015] The downward pressing connecting plate is provided with a heat sealing knife matched with the heat pressing strip and a knife cylinder for driving the heat sealing knife to move.

[0016] As a preferred technical solution of the present utility model, the preheating mechanism and the precooling mechanism have the same structure, both of which are pressure wheel structures. The pressure wheel structure includes a rotating shaft, a working part for preheating or precooling arranged in the middle of the rotating shaft, and pressure wheels located on both sides of the working part. One end of the rotating shaft is provided with an external joint for connecting a heat source or a cold source, and the interior of the external joint is connected to the interior of the working part.

[0017] As a preferred technical solution of the utility model, the working part includes a plurality of contact parts arranged around the axis of the rotating shaft and an extrusion wheel located between the contact parts.

[0018] As a preferred technical solution of the utility model, the adjustment mechanism includes:

[0019] The receiving platform has a set of components arranged on the heat-sealing base plate and respectively cooperated with the preheating mechanism and the precooling mechanism;

[0020] A vertical plate, the vertical plate is located outside the receiving platform, and an upper mounting plate and a lower mounting plate with mounting holes are arranged on the outer side of the vertical plate, and an adjustment slot is arranged on the upper end of the vertical plate;

[0021] A bearing mounting portion, wherein an adjusting screw is disposed at the upper end of the bearing mounting portion, a smooth guide rod is disposed at the lower end of the bearing mounting portion, and the rotating shaft is mounted on the bearing mounting portion through a bearing;

[0022] A spring is sleeved on the smooth guide rod, one end of the spring is in contact with the lower mounting plate and the other end is in contact with the bearing mounting portion;

[0023] The adjusting screw is fixed on the upper mounting plate by nuts located on both sides of the upper mounting plate.

[0024] As a preferred technical solution of the utility model, a guide downward pressing bracket is also provided on the bearing mounting portion located on one side of the preheating mechanism.

[0025] The utility model has the following beneficial effects:

[0026] In the utility model, before the packaging bag is subjected to edge sealing hot pressing, the packaging bag is preliminarily preheated by a preheating mechanism through a conveying component, which is beneficial to improving the hot pressing efficiency and effect of the hot pressing component. At the same time, after hot pressing, when the conveying component conveys the hot pressed packaging bag out, it will pass through a precooling mechanism, and the precooling mechanism will cool the hot pressed part of the hot pressed packaging bag. After cooling, the hot pressed part will be stronger and firmer, and have stronger tear resistance, which is beneficial to improving the yield of finished products.

[0027] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0030] Figure 2 for Figure 1 A view from another angle;

[0031] Figure 3 It is a three-dimensional structural schematic diagram of the conveying component in the utility model;

[0032] Figure 4 It is a three-dimensional structural schematic diagram of the hot pressing component in the utility model;

[0033] Figure 5 for Figure 4 A view from another angle;

[0034] Figure 6 It is a schematic diagram of the installation structure of the preheating mechanism and the precooling mechanism in the utility model;

[0035] Figure 7 It is a three-dimensional structural schematic diagram of the adjustment mechanism in the utility model;

[0036] Figure 8 It is a three-dimensional structural schematic diagram of the pressure wheel structure in the utility model;

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] 1-bottom plate; 2-conveying assembly, 21-conveying belt, 22-pulley, 23-motor; 3-hot pressing assembly, 31-heat sealing base plate, 32-heat sealing guide rod, 33-cylinder connecting plate, 34-downward pressure connecting plate, 35-heat sealing cylinder, 36-lower sealing strip, 37-hot pressing strip, 38-upper sealing strip, 39-heat sealing knife, 40-sealing knife cylinder; 4-preheating assembly; 5-precooling assembly; 6-adjusting mechanism, 61-receiving platform, 62-vertical plate, 63-bearing mounting part, 631-lower mounting plate, 632-upper mounting plate, 64-adjusting screw, 65-smooth guide rod, 66-guide downward pressure bracket; 71-rotating shaft, 72-pressing wheel, 73-contact part, 74-extrusion wheel. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] Embodiment 1

[0042] like Figure 1-2 As shown: The utility model discloses a packaging bag edge sealing hot pressing device, including a base plate 1 and a conveying component 2 and a hot pressing component 3 installed on the base plate 1, and adjustment mechanisms 6 are arranged on both sides of the hot pressing component 3. A preheating mechanism 4 is arranged on the adjustment mechanism 6 on the packaging bag inlet side, and a precooling mechanism 5 is arranged on the adjustment mechanism 6 on the packaging bag outlet side.

[0043] In the utility model, before the packaging bag is subjected to edge sealing hot pressing, the packaging bag is preliminarily preheated by the preheating mechanism 4 through the conveying component, which is beneficial to improving the hot pressing efficiency and effect of the hot pressing component 3. At the same time, after the hot pressing, when the conveying component conveys the hot pressed packaging bag out, it will pass through the precooling mechanism 5, and the precooling mechanism 5 will cool the hot pressed part of the hot pressed packaging bag. After cooling, the hot pressed part will be stronger and firmer, and have stronger tear resistance, which is beneficial to improving the yield rate.

[0044] Embodiment 2

[0045] like Figure 3-5 As shown, the conveying assembly 2 includes a conveying belt 21, a pulley 22 and a motor 23 that drives the pulley 22 to rotate.

[0046] The heat-pressing assembly 3 comprises a heat-sealing base plate 31, a heat-sealing guide rod 32 and a heat-sealing cylinder 35. The two ends of the heat-sealing base plate 31 are fixed to the upper surface of the bottom plate 1 through support columns; the heat-sealing guide rod 32 has a group of symmetrical arrangements and passes through the two ends of the heat-sealing base plate 31, the upper end of the heat-sealing guide rod 32 is provided with a downward pressing connecting plate 34, and the lower end of the heat-sealing guide rod 32 is provided with a cylinder connecting plate 33; the heat-sealing cylinder 35 is fixed to the lower surface of the heat-sealing base plate 31, and the end of the piston rod of the heat-sealing cylinder 35 is fixedly connected to the upper surface of the cylinder connecting plate 33; the heat-sealing base plate 31 is provided with a lower sealing strip 36 and a heat-pressing strip 37; the lower surface of the downward pressing connecting plate 34 is fixed with an upper sealing strip 38 matched with the lower sealing strip 36; the downward pressing connecting plate 34 is provided with a heat-sealing knife 39 matched with the heat-pressing strip 37 and a sealing knife cylinder 40 for driving the heat-sealing knife 39 to move.

[0047] In this embodiment, the conveying component 2 and the hot pressing component 3 are existing technologies. During operation, the conveying component 2 conveys the conveyor belt to between the hot pressing strip 37 and the heat sealing knife 39, and then the packaging bag is hot-pressed and sealed under the drive of the sealing knife cylinder 40 and the heat sealing cylinder 35.

[0048] Embodiment 3

[0049] like Figure 6-8 As shown: the preheating mechanism 4 and the precooling mechanism 5 have the same structure, both of which are pressure wheel structures, which include a rotating shaft 71, a working part for preheating or precooling arranged in the middle of the rotating shaft 71, and pressure wheels 72 located on both sides of the working part. An external joint for connecting a heat source or a cold source is arranged at one end of the rotating shaft 71, and the interior of the external joint is connected to the interior of the working part. The working part includes a plurality of contact parts 73 arranged around the axis of the rotating shaft 71 and a squeezing wheel 74 located between the contact parts 73.

[0050] In this embodiment, the preheating mechanism 4 and the precooling mechanism 5 are highly consistent in structure. They are both composed of a pressure wheel structure, which mainly includes a rotating shaft 71, a working part for preheating or precooling arranged in the middle of the rotating shaft 71, and pressure wheels 72 located on both sides of the working part. One end of the rotating shaft 71 is provided with an external joint for connecting a heat source or a cold source, and the interior of the external joint is communicated with the interior of the working part.

[0051] In terms of the composition of the working part, it includes a plurality of contact parts 73 arranged around the axis of the rotating shaft 71, and extrusion wheels 74 located between the contact parts 73. This design enables the contact parts 73 and the extrusion wheels 74 to work together. The contact parts are used to achieve preheating or precooling of the packaging bag. The extrusion wheels 74 play a certain role in friction transmission. On the other hand, the extrusion wheels have a certain elasticity. When the contact parts are in contact with the packaging bag, the extrusion wheels on both sides also play a certain pressing role.

[0052] In this embodiment, the application scenarios of the preheating mechanism 4 and the precooling mechanism 5 are different. The preheating mechanism 4 is mainly used to preheat the packaging bag so that the packaging bag reaches a suitable temperature before entering the subsequent heat sealing process, thereby improving processing efficiency and product quality. The precooling mechanism 5 is mainly used to quickly cool the packaging bag that has been treated with high temperature to prevent the packaging bag from being deformed or damaged during the subsequent processing.

[0053] Embodiment 4

[0054] like Figure 6-7 As shown: the adjustment mechanism includes a receiving platform 61, a vertical plate 62 and a bearing mounting part 63. The receiving platform 61 has a group of plates arranged on the heat-sealing base plate 31 and respectively cooperate with the preheating mechanism 4 and the precooling mechanism 5; the vertical plate 62 is located outside the receiving platform 61, and the upper mounting plate 632 and the lower mounting plate 631 with mounting holes are arranged on the outer side of the vertical plate 62, and the upper end of the vertical plate 62 is provided with an adjustment groove; the upper end of the bearing mounting part 63 is provided with an adjustment screw 64, and the lower end of the bearing mounting part 63 is provided with a smooth guide rod 65, and the rotating shaft 71 is installed on the bearing mounting part 63 through a bearing; a spring is sleeved on the smooth guide rod 65, and one end of the spring contacts the lower mounting plate 631 and the other end contacts the bearing mounting part 63; the adjustment screw 64 is fixed on the upper mounting plate 632 through nuts located on both sides of the upper mounting plate 632. The bearing mounting part 63 located on one side of the preheating mechanism 4 is also provided with a guide downward pressure bracket 66.

[0055] In this embodiment, the specific operation steps are as follows: the main components of the adjustment mechanism include a receiving platform 61, a vertical plate 62 and a bearing mounting portion 63. The receiving platform 61 is the basis of the entire device, and a group of components cooperating with the preheating mechanism 4 and the precooling mechanism 5 are arranged on the receiving platform 61 to achieve heat treatment and cooling of the material.

[0056] The vertical plate 62 is located outside the receiving platform 61 and plays a supporting and stabilizing role. The vertical plate 62 is provided with an upper mounting plate 632 and a lower mounting plate 631 parallel to each other on the outside, and these two mounting plates are responsible for carrying and adjusting the bearings. The upper end of the vertical plate 62 is provided with an adjustment slot for adjusting the position of the bearing.

[0057] The bearing mounting part 63 is a key part of the whole device, which is responsible for bearing and supporting the rotating shaft 71. The upper end of the bearing mounting part 63 is provided with an adjusting screw 64, through which the position of the bearing mounting part 63 can be accurately controlled, thereby controlling the distance between the pressure wheel structure and the bearing platform. The lower end of the bearing mounting part 63 is provided with a smooth guide rod 65, the function of which is to guide the up and down movement of the rotating shaft 71, thereby achieving height adjustment.

[0058] A spring is sleeved on the smooth guide rod 65, one end of the spring contacts the lower mounting plate 631, and the other end contacts the bearing mounting portion 63. This design allows the device to remain stable during the adjustment process. The adjustment screw 64 is fixed to the upper mounting plate 632 by nuts located on both sides of the upper mounting plate 632, thereby achieving precise control of the bearing position.

[0059] In this embodiment, the adjustment mechanism is used to adjust the height of the pressure wheel structure and the distance between it and the support platform so that it can match packaging bags of different thicknesses. Secondly, the guiding downward pressure bracket 66 can play a guiding role when the packaging bag enters under the pressure wheel structure.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A packaging bag edge sealing hot pressing device, comprising a base plate (1) and a conveying component (2) and a hot pressing component (3) mounted on the base plate (1), characterized in that: The hot pressing assembly (3) is provided with adjustment mechanisms (6) on both sides, the adjustment mechanism (6) on the packaging bag inlet side is provided with a preheating mechanism (4), and the adjustment mechanism (6) on the packaging bag outlet side is provided with a precooling mechanism (5).

2. The packaging bag edge sealing hot pressing device according to claim 1, characterized in that: The conveying assembly (2) comprises a conveying belt (21), a belt pulley (22), and a motor (23) for driving the belt pulley (22) to rotate.

3. The packaging bag edge sealing hot pressing device according to claim 1, characterized in that: The hot pressing assembly (3) comprises: A heat-sealing base plate (31), wherein both ends of the heat-sealing base plate (31) are fixed to the upper surface of the bottom plate (1) via support columns; A heat sealing guide rod (32), the heat sealing guide rod (32) having a group of symmetrically arranged and passing through the two ends of the heat sealing base plate (31), a downward pressing connecting plate (34) being arranged at the upper end of the heat sealing guide rod (32), and a cylinder connecting plate (33) being arranged at the lower end of the heat sealing guide rod (32); A heat sealing cylinder (35), wherein the heat sealing cylinder (35) is fixed to the lower surface of the heat sealing base plate (31), and the end of the piston rod of the heat sealing cylinder (35) is fixedly connected to the upper surface of the cylinder connecting plate (33); The heat-sealing base plate (31) is provided with a lower sealing strip (36) and a heat pressing strip (37); An upper sealing strip (38) matching with the lower sealing strip (36) is fixed on the lower surface of the pressing connecting plate (34); The downward pressing connecting plate (34) is provided with a heat sealing knife (39) matched with the heat pressing strip (37) and a knife sealing cylinder (40) for driving the heat sealing knife (39) to move.

4. The packaging bag edge sealing hot pressing device according to claim 1, characterized in that: The preheating mechanism (4) and the precooling mechanism (5) have the same structure, both of which are pressure wheel structures. The pressure wheel structure comprises a rotating shaft (71), a working part for preheating or precooling arranged in the middle of the rotating shaft (71), and pressure wheels (72) located on both sides of the working part. One end of the rotating shaft (71) is provided with an external joint for connecting to a heat source or a cold source, and the interior of the external joint is connected to the interior of the working part.

5. The packaging bag edge sealing hot pressing device according to claim 4, characterized in that: The working part comprises a plurality of contact parts (73) arranged around the axis of the rotating shaft (71) and an extrusion wheel (74) located between the contact parts (73).

6. The packaging bag edge sealing hot pressing device according to claim 4, characterized in that: The regulating mechanism (6) comprises: A receiving platform (61), wherein the receiving platform (61) has a set of components arranged on the heat-sealing base plate (31) and respectively matched with the preheating mechanism (4) and the precooling mechanism (5); A vertical plate (62), the vertical plate (62) being located outside the receiving platform (61), and an upper mounting plate (632) and a lower mounting plate (631) which are parallel to each other and have mounting holes are respectively arranged on the outside of the vertical plate (62), and an adjustment slot is arranged at the upper end of the vertical plate (62); A bearing mounting portion (63), wherein an adjusting screw (64) is disposed at the upper end of the bearing mounting portion (63), a smooth guide rod (65) is disposed at the lower end of the bearing mounting portion (63), and the rotating shaft (71) is mounted on the bearing mounting portion (63) via a bearing; The smooth guide rod (65) is sleeved with a spring, one end of the spring is in contact with the lower mounting plate (631) and the other end is in contact with the bearing mounting portion (63); The adjusting screw (64) is fixed on the upper mounting plate (632) via nuts located on both sides of the upper mounting plate (632).

7. The packaging bag edge sealing hot pressing device according to claim 6, characterized in that: The bearing mounting portion (63) located on one side of the preheating mechanism (4) is also provided with a guide downward pressing bracket (66).

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