Heating assembly for hot melt adhesive reaction kettle

Abstract

The utility model relates to the technical field of hot melt adhesive production equipment, in particular to a heating component for a hot melt adhesive reaction kettle, which comprises a metal kettle body, a pipeline filled with heat conduction oil is spirally wound on the outer side of the metal kettle body, and a clearance is reserved between two adjacent circles of pipelines up and down. The heating assembly comprises a heat insulation layer wrapping the outer side of the metal kettle body, a fixing outer layer arranged on the outer side of the heat insulation layer and used for fixing the heat insulation layer to the metal kettle body and an electromagnetic heating wire used for heating the metal kettle body, and a mounting groove is formed in the position, corresponding to the receding gap, of the outer side of the fixing outer layer; and the electromagnetic heating wire is arranged in the mounting groove and is wound on the fixed outer layer along the path of the mounting groove. According to the heating assembly for the hot melt adhesive reaction kettle, the elimination of an original hot melt adhesive reaction kettle adopting a conduction oil heating mode can be avoided, and the heating speed and the heat utilization efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot melt adhesive production equipment, in particular to a heating component for a hot melt adhesive reaction kettle. Background Art

[0002] Hot melt adhesive is a plastic adhesive that is solid at room temperature and can quickly bond after being heated and melted. Hot melt adhesive is made by introducing raw materials into a reactor and heating and stirring the raw materials in the reactor. Since the raw materials of hot melt adhesive need to be heated during the preparation process of hot melt adhesive, the reactor used to prepare hot melt adhesive has a heating component.

[0003] Using heat transfer oil to heat the hot melt adhesive reactor is a traditional heating method for the hot melt adhesive reactor. The hot melt adhesive reactor with this heating method generally includes a metal reactor body and a pipe spirally wound on the metal reactor body and passing heat transfer oil. The heat transfer oil in the pipe is circulated and heated by a circulating pump and an external heater, thereby heating the hot melt adhesive raw material in the metal reactor body.

[0004] With the development of technology, electromagnetic heating has emerged. The electromagnetic heating wire is wound on the metal kettle body of the hot melt adhesive reactor. The metal kettle body is heated by electromagnetic induction heating. The heat generated by the metal kettle body is transferred to the hot melt adhesive raw material in the reactor, thereby heating the hot melt adhesive raw material with fast heating speed and high heat utilization efficiency.

[0005] In order to avoid the elimination of the original hot melt adhesive reactor using thermal oil heating and to improve the heating speed and heat utilization efficiency, it is necessary to improve the hot melt adhesive reactor on this basis. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a heating component for a hot melt adhesive reactor, which can avoid the elimination of the original hot melt adhesive reactor using heat transfer oil heating method and improve the heating speed and heat utilization efficiency.

[0007] In order to solve the above technical problems, the utility model provides a heating component for a hot melt adhesive reactor, which comprises a metal reactor body, a pipe with heat transfer oil passing through it is spirally wound on the outer side of the metal reactor body, and a clearance gap is left between two adjacent circles of the pipe. The heating component comprises a thermal insulation layer wrapped around the outer side of the metal reactor body, a fixed outer layer arranged on the outer side of the thermal insulation layer and used to fix the thermal insulation layer on the metal reactor body, and an electromagnetic heating wire for heating the metal reactor body, an installation groove is provided on the outer side of the fixed outer layer corresponding to the clearance gap, and the electromagnetic heating wire is placed in the installation groove and is wound on the fixed outer layer along the path of the installation groove.

[0008] As an improvement of the above solution, the distance between the bottom of the installation groove and the axis of the metal kettle body is smaller than the distance between the outer end of the pipeline and the axis of the metal kettle body.

[0009] As an improvement of the above solution, the electromagnetic heating wire includes a rubber-coated block whose inner side is parallel to the axis of the metal kettle body and a plurality of conducting wires placed in the rubber-coated block and spaced from top to bottom. The cross-sectional profile of the installation groove matches the cross-sectional outer profile of the rubber-coated block.

[0010] As an improvement to the above solution, the gap distance between two adjacent upper and lower conducting wires is greater than the outer diameter of the conducting wires.

[0011] As an improvement of the above solution, the fixed outer layer is provided with a connection opening parallel to the axis of the metal kettle body and a connection mechanism for closing the connection opening.

[0012] As an improvement of the above solution, each circle of the mounting grooves is arranged between two upper and lower adjacent groups of connecting mechanisms.

[0013] As an improvement of the above scheme, the connecting mechanism includes a connecting bolt, a connecting nut and two connecting blocks arranged on both sides of the connecting opening. The connecting blocks are provided with connecting through holes, and the connecting bolts pass through the two connecting through holes in turn and are threadedly connected to the connecting nuts.

[0014] As an improvement of the above solution, the connecting through hole is a long through hole extending up and down and has a width greater than the outer diameter of the connecting bolt and smaller than the outer diameter of the head of the connecting bolt.

[0015] As an improvement of the above solution, the fixed outer layer is equipped with multiple sets of clamping mechanisms for pressing the rubber-coated block into the installation groove.

[0016] As an improvement of the above solution, the clamping mechanism includes a clamping strip whose upper and lower parts are both connected to the fixed outer layer thread and whose middle part is used to abut against the outer side of the rubber-coated block.

[0017] The implementation of this utility model has the following beneficial effects:

[0018] The utility model discloses a heating component for a hot melt adhesive reactor, which cooperates with a metal reactor body, a pipeline, a heat insulation layer, a fixed outer layer, a mounting groove and an electromagnetic heating wire, thereby avoiding the elimination of the original hot melt adhesive reactor using heat transfer oil for heating and improving the heating speed and heat utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a heating assembly for a hot melt adhesive reaction kettle in an embodiment of the utility model;

[0020] Figure 2 for Figure 1 Magnified view at A in the middle;

[0021] Figure 3 This is a working principle diagram of the connecting mechanism in the embodiment of the utility model;

[0022] Figure 4 This is a layout view of connecting through holes on a connecting block in an embodiment of the utility model.

[0023] In the figure:

[0024] 100. Metal kettle body; 110. Pipeline;

[0025] 200, thermal insulation layer;

[0026] 300, fixed outer layer; 310, mounting groove; 320, connection opening; 330, connection mechanism; 331, connection bolt; 332, connection nut; 333, connection block; 334, connection through hole; 340, clamping mechanism; 341, clamping strip;

[0027] 400, electromagnetic heating wire; 410, rubber-coated block; 420, conducting wire. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, so as to more clearly understand the technical ideas claimed for protection by the present invention. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0029] like Figures 1 to 4 As shown, an embodiment of the utility model provides a heating component for a hot melt adhesive reaction kettle.

[0030] The hot melt adhesive reactor comprises a metal reactor body 100, and a pipe 110 with heat transfer oil passing through is spirally wound on the outer side of the metal reactor body 100, and a clearance is left between the two adjacent circles of the pipe 110. In fact, the hot melt adhesive reactor is an original hot melt adhesive reactor using heat transfer oil heating, and the drawing omits the part where the pipe 110 is connected to the external heater for cyclic heating. The metal reactor body 100 can be made of metal materials with certain magnetic conductivity, such as carbon steel, stainless iron or stainless steel, and can be heated by electromagnetic heating; in addition, the hot melt adhesive reactor can also include a stirring component, a temperature detection device, a feed port, a discharge port, etc., to have corresponding functions.

[0031] The heating assembly includes an insulation layer 200 wrapped around the outside of a metal kettle body 100, a fixed outer layer 300 arranged on the outside of the insulation layer 200 and used to fix the insulation layer 200 on the metal kettle body 100, and an electromagnetic heating wire 400 for heating the metal kettle body 100. An installation groove 310 is provided on the outside of the fixed outer layer 300 corresponding to the clearance, and the electromagnetic heating wire 400 is placed in the installation groove 310 and is wound around the fixed outer layer 300 along the path of the installation groove 310. In fact, the heat insulation layer 200 plays a role in reducing the heat dissipation from the metal kettle body 100 to the outside, thereby improving the heat utilization rate of the metal kettle body 100; the fixed outer layer 300 is used to fix the heat insulation layer 200 and provide an installation groove 310 for the electromagnetic heating wire 400. The electromagnetic heating wire 400 is wound in the installation groove 310 and can be fixed to the fixed outer layer 300 by utilizing the winding force of the electromagnetic heating wire 400 when it is spirally wound or by utilizing a newly added fixing part. The heating control machine and the line connecting the electromagnetic heating wire 400 and the external heating control machine are omitted in the attached drawings. The heating control machine passes the corresponding current into the electromagnetic heating wire 400 and generates heat on the metal kettle body 100, and quickly heats the hot melt adhesive in the hot melt adhesive reactor under the action of the pipeline 110 and the heat transfer oil in the pipeline 110. It should be noted that the original hot melt adhesive reactor using heat transfer oil heating can be disconnected from the circulation pump and the external heating machine, and there is no need to use the circulation pump and the external heating machine when heating.

[0032] A heating component for a hot melt adhesive reactor of the utility model cooperates with each other through a metal reactor body 100, a pipeline 110, a heat insulation layer 200, a fixed outer layer 300, an installation groove 310 and an electromagnetic heating wire 400, which can avoid the elimination of the original hot melt adhesive reactor using heat transfer oil heating and improve the heating speed and heat utilization efficiency.

[0033] Specifically, the distance between the bottom of the mounting groove 310 and the axis of the metal kettle body 100 is preferably smaller than the distance between the outer end of the pipe 110 and the axis of the metal kettle body 100, so that the electromagnetic heating wire 400 placed in the mounting groove 310 is closer to the metal kettle body 100, ensuring that the metal kettle body 100 can be heated under electromagnetic action.

[0034] It should be noted that the electromagnetic heating wire 400 preferably includes a rubber-coated block 410 whose inner side is parallel to the axis of the metal kettle body 100 and a plurality of conducting wires 420 disposed in the rubber-coated block 410 and spaced from top to bottom, and the cross-sectional profile of the mounting groove 310 matches the cross-sectional outer profile of the rubber-coated block 410. The inner side of the rubber-coated block 410 is parallel to the axis of the metal kettle body 100 so that the block and the bottom of the mounting groove 310 fit more closely, and under the effect of the plurality of conducting wires 420 spaced from top to bottom, the distance between each conducting wire 420 and the outer side of the metal kettle body 100 is more uniform, so that the position corresponding to the mounting groove 310 of the metal kettle body 100 heats more uniformly. Specifically, the gap distance between the two adjacent conducting wires 420 is preferably greater than the outer diameter of the conducting wires 420, so that there are enough rubber-coated blocks 410 between the two adjacent conducting wires 420 to fix the conducting wires 420.

[0035] It should be noted that the fixed outer layer 300 is preferably provided with a connection opening 320 parallel to the axis of the metal kettle body 100 and a connection mechanism 330 for closing the connection opening 320. In fact, the fixed outer layer 300 may be provided with more than two connection openings 320, and the connection mechanism 330 may be a clamp or a threaded connector, and the fixed outer layer 300 is detachably mounted on the outside of the heat insulating layer 200 through the connection opening 320 and the connection mechanism 330, and the heat insulating layer 200 and the fixed outer layer 300 are fixed to the metal kettle body 100 by tightening.

[0036] Specifically, each circle of the installation groove 310 is preferably arranged between two adjacent groups of connection mechanisms 330, and the connection strength of the connection opening 320 is improved by the cooperation of multiple connection mechanisms 330, and the influence of the connection mechanism 330 on the electromagnetic heating wire 400 placed in the installation groove 310 is avoided. In this embodiment, the connection mechanism 330 preferably includes a connection bolt 331, a connection nut 332, and two connection blocks 333 arranged on both sides of the connection opening 320. The connection block 333 is provided with a connection through hole 334, and the connection bolt 331 passes through the two connection through holes 334 in turn and is threadedly connected with the connection nut 332. During assembly, the two connection blocks 333 are brought close to each other under the action of the connection bolt 331 and the connection nut 332, so that the connection opening 320 is closed, and the heat insulation layer 200 is clamped on the outside of the metal kettle body 100, so that the heat insulation layer 200 and the fixed outer layer 300 are fixed on the metal kettle body 100. More specifically, the connecting through hole 334 is preferably an elongated through hole extending upward and downward and having a width greater than the bolt outer diameter of the connecting bolt 331 and less than the head outer diameter of the connecting bolt 331. In fact, the width of the elongated through hole is greater than the stud outer diameter of the connecting bolt 331 and less than the head outer diameter of the connecting bolt 331 and the outer diameter of the connecting nut 332, thereby providing a certain upward and downward position adjustment range for the connecting bolt 331 and the connecting nut 332, thereby facilitating the installation of the connecting bolt 331 and the connecting nut 332.

[0037] It is worth mentioning that the fixed outer layer 300 is preferably equipped with multiple sets of clamping mechanisms 340 for pressing the rubber-coated block 410 into the installation groove 310, so that the inner side of the rubber-coated block 410 abuts against the inner side of the installation groove 310, ensuring that the electromagnetic heating wire 400 is placed in the installation groove 310. In fact, the clamping mechanism 340 preferably includes a clamping strip 341, the upper and lower parts of which are both threadedly connected to the fixed outer layer 300 and the middle part is used to abut against the outer side of the rubber-coated block 410; in fact, the upper and lower parts of the clamping strip 341 can be provided with through holes and equipped with bolts, so that the upper and lower parts of the wire clamping strip 341 are threadedly connected to the fixed outer layer 300, and the clamping strip 341 is pressed toward the outer side of the metal kettle body 100 and abuts against the bottom of the installation groove 310.

[0038] The above are only specific embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A heating assembly for a hot melt adhesive reaction kettle, the hot melt adhesive reaction kettle comprising a metal kettle body, a pipe with heat transfer oil passing through is spirally wound around the outer side of the metal kettle body, and a clearance is left between two adjacent circles of the pipe, characterized in that: The heating assembly includes an insulating layer wrapped around the outside of a metal kettle body, a fixed outer layer arranged on the outside of the insulating layer and used to fix the insulating layer on the metal kettle body, and an electromagnetic heating wire for heating the metal kettle body. An installation groove is provided on the outside of the fixed outer layer corresponding to the clearance, and the electromagnetic heating wire is placed in the installation groove and is wound around the fixed outer layer along the path of the installation groove.

2. A heating assembly for a hot melt adhesive reaction kettle as claimed in claim 1, characterized in that: The distance between the bottom of the installation groove and the axis of the metal kettle body is smaller than the distance between the outer end of the pipeline and the axis of the metal kettle body.

3. A heating assembly for a hot melt adhesive reaction kettle as claimed in claim 2, characterized in that: The electromagnetic heating wire comprises a rubber-coated block whose inner side is parallel to the axis of the metal kettle body and a plurality of conducting wires arranged in the rubber-coated block and spaced from top to bottom. The cross-sectional profile of the installation groove matches the cross-sectional outer profile of the rubber-coated block.

4. A heating assembly for a hot melt adhesive reaction kettle as claimed in claim 3, characterized in that: The gap distance between two adjacent upper and lower conducting wires is greater than the outer diameter of the conducting wires.

5. A heating assembly for a hot melt adhesive reaction kettle as claimed in claim 3, characterized in that: The fixed outer layer is provided with a connection opening parallel to the axis of the metal kettle body and a connection mechanism for closing the connection opening.

6. A heating assembly for a hot melt adhesive reaction kettle as claimed in claim 5, characterized in that: Each circle of the mounting grooves is arranged between two upper and lower adjacent groups of connecting mechanisms.

7. A heating assembly for a hot melt adhesive reaction kettle as claimed in claim 6, characterized in that: The connection mechanism comprises a connection bolt, a connection nut and two connection blocks which are arranged opposite to each other on both sides of the connection opening. The connection blocks are provided with connection through holes. The connection bolts pass through the two connection through holes in sequence and are threadedly connected with the connection nuts.

8. A heating assembly for a hot melt adhesive reaction kettle as claimed in claim 7, characterized in that: The connecting through hole is a long through hole extending up and down, and its width is larger than the bolt outer diameter of the connecting bolt and smaller than the head outer diameter of the connecting bolt.

9. A heating assembly for a hot melt adhesive reaction kettle as claimed in claim 3, characterized in that: The fixed outer layer is provided with a plurality of pressing mechanisms for pressing the rubber-coated block into the installation groove.

10. A heating assembly for a hot melt adhesive reaction kettle as claimed in claim 9, characterized in that: The clamping mechanism comprises a clamping strip, the upper and lower parts of which are both connected to the fixed outer layer thread, and the middle part of which is used to abut against the outer side of the rubber-coated block.

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