Hot melt adhesive heating pressure plate

Abstract

The utility model discloses a hot melt adhesive heating pressure plate which comprises a pressure plate body, a sealing groove extending in the whole circumferential direction is formed in the side surface of the pressure plate body, a sealing ring is installed in the sealing groove in an embedded mode and protrudes out of the side surface of the pressure plate body, and an adhesive outlet through hole penetrating up and down is formed in the center of the pressure plate body. The lower surface of the pressure plate body is used for being in extrusion contact with the upper surface of a hot melt adhesive, a plurality of mounting holes are formed in the pressure plate body and located on the outer side of the adhesive outlet through hole, and a heating rod is mounted in each mounting hole in an embedded mode. According to the utility model, the hot melt adhesive which is in a solid state at the initial state can be quickly heated, and the hot melt adhesive liquid which is heated and melted and has flowability is discharged outwards from the adhesive outlet through hole, so that continuous adhesive supply is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger pumps, in particular to a hot melt adhesive heating platen. Background Art

[0002] Hot melt adhesive is an environmentally friendly chemical product. Before use, the hot melt adhesive in solid state needs to be heated into liquid state. When applying the hot melt adhesive to the photovoltaic curtain wall, the glue is supplied through the plunger, and then the glue is applied and installed, which can reduce the curing time of the glue.

[0003] When the plunger pump pressure plate of the prior art supplies hot melt adhesive, the pressure plate cannot heat the hot melt adhesive in the glue barrel in a solid state, and the fluidity of the hot melt adhesive output outward is poor, which easily affects the continuous supply of adhesive. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a hot melt adhesive heating platen, which can quickly heat the hot melt adhesive which is initially solid, and discharge the hot melt adhesive liquid which is heated and melted and has fluidity outward from the adhesive outlet through hole to realize continuous adhesive supply.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a hot melt adhesive heating platen, comprising: a platen body, a sealing groove extending along the entire circumference is provided on the side surface of the platen body, a sealing ring is embedded and installed in the sealing groove and protrudes from the side surface of the platen body, a glue outlet through hole is provided in the center of the platen body and passes through from top to bottom, the lower surface of the platen body is used for extrusion contact with the upper surface of the hot melt adhesive, and a plurality of mounting holes are provided on the platen body and located on the outside of the glue outlet through hole, and a heating rod is embedded and installed in each of the mounting holes.

[0006] The further improved scheme in the above technical scheme is as follows:

[0007] 1. In the above solution, there are 16 heating rods.

[0008] 2. In the above solution, the upper surface of the pressure plate body has an upward protrusion, and a plurality of mounting holes extending in the horizontal direction and parallel to each other are provided on the side surface of the protrusion and located on both sides of the glue outlet through hole.

[0009] 3. In the above solution, the mounting hole is a through hole.

[0010] 4. In the above solution, the mounting hole is a blind hole opened on the upper surface of the pressure plate body and extending in the vertical direction.

[0011] 5. In the above solution, a cover plate is provided above the pressure plate body.

[0012] 6. In the above scheme, the upper surface of the cover plate and the pressure plate body are each provided with an air outlet hole extending vertically and located outside the glue outlet hole, and the lower end of a sealing rod penetrates into the two interconnected air outlet holes and is sealed and connected to the air outlet holes through threads.

[0013] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0014] The utility model discloses a hot melt adhesive heating platen, wherein the lower surface of the platen body is used for extruding and contacting with the upper surface of the hot melt adhesive body, and a plurality of mounting holes are provided on the platen body and located outside the adhesive outlet through hole, and a heating rod is embedded and installed in each mounting hole, so that the hot melt adhesive which is solid in an initial state can be quickly heated, and the hot melt adhesive liquid which is heated and melted and has fluidity can be discharged outwardly from the adhesive outlet through hole to realize continuous adhesive supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 This is a structural schematic diagram of the hot melt adhesive heating platen of the utility model;

[0016] Attached Figure 2 For the utility model Figure 1 Schematic diagram of the cross section along AA;

[0017] Attached Figure 3 For the utility model Figure 2 The enlarged schematic diagram of point B in the middle;

[0018] Attached Figure 4 It is a partial structural schematic diagram of the hot melt adhesive heating platen of the utility model.

[0019] In the above figures: 1, pressure plate body; 2, sealing groove; 3, sealing ring; 4, glue outlet hole; 5, mounting hole; 6, heating rod; 7, cover plate; 71, through hole; 8, raised part; 91, air outlet hole; 92, sealing rod. DETAILED DESCRIPTION

[0020] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0021] Embodiment 1: A hot melt adhesive heating platen, comprising: a platen body 1, a sealing groove 2 extending along the entire circumference is provided on the side surface of the platen body 1, a sealing ring 3 is embedded and installed in the sealing groove 2 and protrudes from the side surface of the platen body 1, a glue outlet through hole 4 is provided in the center of the platen body 1, the lower surface of the platen body 1 is used for extrusion contact with the upper surface of the hot melt adhesive, a plurality of mounting holes 5 are provided on the platen body 1 and located outside the glue outlet through hole 4, and a heating rod 6 is embedded and installed in each of the mounting holes 5;

[0022] When in use, preheat the pressure plate to about 100°C through a heating rod, and then put the pressure plate into the incoming glue barrel of hot melt adhesive, so that the sealing ring on the pressure plate is squeezed into contact with the inner wall of the glue barrel to achieve sealing between the two;

[0023] In the initial state, the glue in the incoming glue barrel is solid;

[0024] First, remove the sealing rod on the air outlet, and move the pressure plate downward until its lower surface contacts the upper surface of the solid hot melt adhesive. During this process, the air between the pressure plate and the upper surface of the hot melt adhesive is discharged from the air outlet;

[0025] Continuously press down the pressure plate so that the glue liquid in the glue barrel, which has been melted into a liquid state by high temperature, is continuously discharged outward from the glue outlet hole, so as to achieve continuous glue supply to subsequent dispensing valves, etc.

[0026] There are 16 heating rods 6 with a total power of 32KW, which can achieve a maximum temperature increase of 250°C within half an hour to facilitate temperature control.

[0027] The upper surface of the pressure plate body 1 has an upward protrusion 8 , and a plurality of mounting holes 5 extending in the horizontal direction and parallel to each other are provided on the side surface of the protrusion 8 and located on both sides of the glue outlet through hole 4 .

[0028] The mounting hole 5 is a through hole.

[0029] A cover plate 7 is disposed above the pressure plate body 1 to shield the wiring of the heating rod and other structures to ensure safety and aesthetics.

[0030] The upper surfaces of the cover plate 7 and the pressure plate body 1 are each provided with an air outlet hole 91 extending vertically therethrough, and the lower end of a sealing rod 92 penetrates into the two interconnected air outlet holes 91 and is sealed and connected to the air outlet holes 91 through threads.

[0031] The lower end of the sealing rod 92 is configured to be in a pointed cone shape, and the upper end of the sealing rod 92 is provided with a handle.

[0032] Embodiment 2: A hot melt adhesive heating platen, comprising: a platen body 1, a sealing groove 2 extending along the entire circumference is provided on the side surface of the platen body 1, a sealing ring 3 is embedded and installed in the sealing groove 2 and protrudes from the side surface of the platen body 1, a glue outlet through hole 4 is provided in the center of the platen body 1 and extends from top to bottom, the lower surface of the platen body 1 is used for extrusion contact with the upper surface of the hot melt adhesive, a plurality of mounting holes 5 are provided on the platen body 1 and located outside the glue outlet through hole 4, and a heating rod 6 is embedded and installed in each of the mounting holes 5;

[0033] The heat generated by the heating rod heats the pressure plate to 150-160°C. The specific heating temperature can be set, and the maximum temperature can be heated to 250°C. The high-temperature pressure plate comes into contact with the solid hot-melt adhesive. The glue is heated at 150°C for half an hour, so that the hot-melt adhesive located in the upper layer of about 10 centimeters melts into a flowable liquid state. A certain pressure is always maintained between the pressure plate and the glue liquid surface. When liquid adhesive overflows from the air outlet, the sealing rod is installed into the air outlet to seal the air outlet.

[0034] The mounting hole 5 is a blind hole which is formed on the upper surface of the pressure plate body 1 and extends in the vertical direction.

[0035] A cover plate 7 is disposed above the pressure plate body 1 .

[0036] The cover plate 7 and the pressure plate body 1 are fixedly connected by a plurality of bolts.

[0037] The upper surface of the cover plate 7 is provided with a through hole 71 which is connected with the glue outlet through hole 4 .

[0038] There are two sealing grooves 2 and two sealing rings 3 , which are spaced apart in the axial direction of the pressure plate body 1 .

[0039] The pressure plate body 1 comprises a metal body and a high temperature resistant coating coated on the surface of the metal body.

[0040] The main body is an aluminum body, and the high temperature resistant coating is a Teflon coating.

[0041] The working principle of the utility model is as follows:

[0042] When in use, preheat the pressure plate to about 100°C through a heating rod, and then put the pressure plate into the incoming glue barrel of hot melt adhesive, so that the sealing ring on the pressure plate is squeezed into contact with the inner wall of the glue barrel to achieve sealing between the two;

[0043] In the initial state, the glue in the incoming glue barrel is solid;

[0044] First, remove the sealing rod on the air outlet, and move the pressure plate downward until its lower surface contacts the upper surface of the solid hot melt adhesive. During this process, the air between the pressure plate and the upper surface of the hot melt adhesive is discharged from the air outlet;

[0045] The temperature of the pressure plate is heated to 150-160°C by the heat generated by the heating rod. The specific heating temperature can be set, and the maximum temperature can be heated to 250°C. The high-temperature pressure plate contacts the solid hot melt adhesive. The glue is heated at 150°C for half an hour, so that the hot melt adhesive located in the upper layer of about 10 cm is melted into a flowable liquid state. A certain pressure is always maintained between the pressure plate and the glue liquid surface. When liquid adhesive overflows from the air outlet, the sealing rod is installed in the air outlet to seal the air outlet.

[0046] Continuously press down the pressure plate so that the glue liquid in the glue barrel, which has been melted into a liquid state by high temperature, is continuously discharged outward from the glue outlet hole, so as to achieve continuous glue supply to subsequent dispensing valves, etc.

[0047] When the hot melt adhesive heating platen is used, it can quickly heat the hot melt adhesive that is initially solid, and discharge the hot melt adhesive liquid that is heated and melted to have fluidity outward from the adhesive outlet through hole to achieve continuous adhesive supply.

[0048] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A hot melt adhesive heating platen, comprising: A pressure plate body (1) is provided with a sealing groove (2) extending along the entire circumference on the side surface of the pressure plate body (1), a sealing ring (3) is embedded and installed in the sealing groove (2) and protrudes from the side surface of the pressure plate body (1), and a glue outlet through hole (4) is provided in the center of the pressure plate body (1) and extends from top to bottom. The characteristic is that: the lower surface of the pressure plate body (1) is used for extrusion contact with the upper surface of the hot melt glue, and a plurality of installation holes (5) are provided on the pressure plate body (1) and located outside the glue outlet through hole (4), and a heating rod (6) is embedded and installed in each of the installation holes (5).

2. The hot melt adhesive heating platen according to claim 1, characterized in that: There are 16 heating rods (6).

3. The hot melt adhesive heating platen according to claim 1, characterized in that: The upper surface of the pressure plate body (1) has an upward protrusion (8), and a plurality of mounting holes (5) extending in a horizontal direction and parallel to each other are provided on the side surface of the protrusion (8) and located on both sides of the glue outlet through hole (4).

4. The hot melt adhesive heating platen according to claim 3, characterized in that: The mounting hole (5) is a through hole.

5. The hot melt adhesive heating platen according to claim 1, characterized in that: The mounting hole (5) is a blind hole which is opened on the upper surface of the pressure plate body (1) and extends in the vertical direction.

6. The hot melt adhesive heating platen according to claim 1, characterized in that: A cover plate (7) is provided above the pressure plate body (1).

7. The hot melt adhesive heating platen according to claim 6, characterized in that: The upper surfaces of the cover plate (7) and the pressure plate body (1) are each provided with an air outlet hole (91) extending vertically therethrough, and located outside the glue outlet through hole (4). The lower end of a sealing rod (92) penetrates into two mutually connected air outlet holes (91) and is sealedly connected to the air outlet holes (91) via threads.

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