A high-temperature anti-stick hot melt adhesive casting equipment

Abstract

This utility model discloses a high-temperature anti-sticking hot melt adhesive casting device, belonging to the technical field of casting equipment. It includes a casting main unit, a hopper positioned above the casting main unit, a discharge chute at one end of the hopper, and a positioning plate positioned above the hopper corresponding to the discharge chute; a first heating scraper and a second heating scraper. The first heating scraper slides vertically against the side of the positioning plate away from the hopper, while the second heating scraper slides horizontally against the lower surface of the positioning plate, symmetrically distributed on both sides below the first heating scraper. By using the first and second heating scrapers, the side in contact with the hot melt adhesive slurry is heated by a built-in heating plate, preventing the slurry from sticking to the scraper surface through high-temperature heating. Simultaneously, the central heat insulation plate of the heating scraper, in conjunction with a cooling plate, rapidly cools and solidifies the hot melt adhesive slurry surface, thereby improving the coating quality of the film surface.

Description

Technical Field

[0001] This utility model relates to the field of casting equipment technology, specifically a high-temperature anti-stick hot melt adhesive casting equipment. Background Technology

[0002] Casting machines are specialized equipment used to produce hot melt adhesive cast films. High-precision electronic ceramic casting machines use alumina as the main raw material for ceramic casting. First, the crushed hot melt adhesive is mixed with binder, plasticizer, dispersant and solvent to form a slurry with a certain viscosity. The slurry flows down from the hopper and is scraped and pressed onto a special base belt with a certain thickness by a scraper. After drying and curing, it is peeled off from the top to become a green film.

[0003] In existing hot melt adhesive casting equipment, the scraper at the hopper outlet does not have a high-temperature anti-sticking function. Therefore, the hot melt adhesive slurry inside the hopper will be locally cooled when passing through the scraper, which will cause some slurry to adhere to the scraper surface. As the amount of adhered material increases, it will affect the subsequent feeding of slurry and cause scratches on the slurry surface, affecting the quality of film formation.

[0004] Therefore, this utility model provides a high-temperature anti-stick hot melt adhesive casting device to solve the above problems. Utility Model Content

[0005] This invention provides a high-temperature anti-stick hot melt adhesive casting device, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature anti-stick hot melt adhesive casting device, including a casting host, a hopper is provided above the casting host, a discharge chute is provided at one end of the hopper, and a positioning plate is provided above the hopper corresponding to the discharge chute, and a drying box is covered above the casting host. The first heating scraper and the second heating scraper are slidably attached to the side of the positioning plate away from the hopper in an up-down manner, and the second heating scraper is slidably attached to the lower surface of the positioning plate in a left-right manner. The second heating scrapers are symmetrically distributed on both sides below the first heating scraper, and the lower surface of the second heating scraper is attached to the base belt of the casting host. A cylinder is fixedly connected to the outer wall of the hopper, and the cylinder is used for adjusting the displacement of the first heating scraper and the second heating scraper.

[0007] As a preferred technical solution of this application, both ends of the positioning plate are fixedly connected to clamps, the cross-section of the clamps is L-shaped, and the first heating scraper is slidably connected between the positioning plate and the clamps.

[0008] As a preferred technical solution of this application, the cylinder is fixedly connected to the outer wall of the hopper by a bracket, a first lug is fixedly connected to the top of the first heating scraper, a second lug is fixedly connected to the side of the second heating scraper that is far away from each other, and the lifting end of the cylinder is fixedly connected to the outer wall of the first lug and the second lug.

[0009] As a preferred technical solution of this application, the first heating scraper and the second heating scraper have the same thickness, and the thickness of the second heating scraper is equal to the thickness of the positioning plate. The first heating scraper is sealed and slidably attached to the side of the positioning plate and the second heating scraper away from the hopper.

[0010] As a preferred technical solution of this application, the first heating scraper and the second heating scraper have the same structure. Both the first heating scraper and the second heating scraper are composed of a heat insulation plate, a heat-conducting copper plate, an electric heating plate, a cooling plate and a coolant flow channel, and the heat-conducting copper plate is distributed on one side close to the discharge trough.

[0011] As a preferred technical solution of this application, a heat-conducting copper plate is fixedly connected to the side of the insulation plate near the hopper, and an electric heating plate is embedded inside the heat-conducting copper plate. A cooling plate is fixedly connected to the side of the insulation plate away from the heat-conducting copper plate, and a coolant flow channel is opened inside the cooling plate. Inlet and outlet water pipes are provided on the outer wall of the cooling plate corresponding to the coolant flow channel.

[0012] The beneficial effects of this application are as follows: This invention features a first heating scraper and a second heating scraper. The side in contact with the hot melt adhesive paste is heated by a built-in heating plate, which prevents the paste from sticking to the scraper surface through high-temperature heating. At the same time, the central heat insulation plate of the heating scraper, together with the cooling plate, rapidly cools and shapes the surface of the hot melt adhesive paste, thereby improving the coating quality of the film surface.

[0013] This invention utilizes the displacement capability of the first and second heating scrapers. Under the push and pull of a cylinder, the first heating scraper can move up and down, and the second heating scraper can move left and right. This allows for adaptive adjustment of the width and thickness of the hot melt adhesive paste, improving the flexibility of film manufacturing in this casting equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present utility model; Figure 2 For the present utility model Figure 1 A magnified structural diagram of A in the middle; Figure 3 This is a schematic diagram of a partial explosion of the first and second heating scrapers of this utility model; Figure 4This is a schematic diagram of the explosion structure of the second heating scraper and the internal material of the second heating scraper of this utility model.

[0015] In the picture: 1. Casting machine; 2. Hopper; 21. Discharge chute; 22. Positioning plate; 23. Clamping plate; 3. Drying oven; 4. First heating scraper; 41. First support ear; 5. Second heating scraper; 51. Second support ear; 61. Insulation plate; 62. Thermally conductive copper plate; 63. Electric heating plate; 64. Cooling plate; 65. Coolant flow channel; 6. Cylinder. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1-4 As shown, this utility model provides a high-temperature anti-stick hot melt adhesive casting device, including a casting host 1, a hopper 2 above the casting host 1, a discharge chute 21 at one end of the hopper 2, and a positioning plate 22 above the hopper 2 corresponding to the discharge chute 21. A drying oven 3 covers the casting host 1; a first heating scraper 4 and a second heating scraper 5, the first heating scraper 4 sliding vertically against the side of the positioning plate 22 away from the hopper 2, and the second heating scraper 5 sliding horizontally against the lower surface of the positioning plate 22. The second heating scraper 5 is symmetrically distributed on both sides below the first heating scraper 4, and the lower surface of the second heating scraper 5 is attached to the base belt of the casting host 1; the cylinder 6 is fixedly connected to the outer wall of the hopper 2, and the cylinder 6 is used to adjust the displacement of the first heating scraper 4 and the second heating scraper 5. By driving the first heating scraper 4 and the second heating scraper 5 to move, the width and thickness of the hot melt adhesive paste film formed on the base belt can be assisted to limit, thereby achieving the flexibility of manufacturing films of different specifications.

[0018] Furthermore, clamping plates 23 are fixedly connected to both ends of the positioning plate 22. The cross-section of the clamping plate 23 is L-shaped, and the first heating scraper 4 is slidably connected between the positioning plate 22 and the clamping plate 23. The auxiliary cooperation between the positioning plate 22 and the clamping plate 23 achieves auxiliary limiting of the first heating scraper 4, ensuring the smoothness of the first heating scraper 4 sliding up and down.

[0019] Furthermore, the cylinder 6 is fixedly connected to the outer wall of the hopper 2 via a bracket. The top of the first heating scraper 4 is fixedly connected to the first lug 41, and the side of the second heating scraper 5 that is far away from each other is fixedly connected to the second lug 51. The lifting end of the cylinder 6 is fixedly connected to the outer wall of the first lug 41 and the second lug 51. By controlling the pulling of the cylinder 6, the first heating scraper 4 and the second heating scraper 5 are moved and adjusted, so that the forming specifications of the slurry on the base belt can be adjusted.

[0020] Furthermore, the first heating scraper 4 and the second heating scraper 5 have the same thickness, and the thickness of the second heating scraper 5 is equal to the thickness of the positioning plate 22. The first heating scraper 4 is sealed and slidably attached to the positioning plate 22 and the side of the second heating scraper 5 away from the hopper 2. The first heating scraper 4 and the second heating scraper 5 have the same structure. Both the first heating scraper 4 and the second heating scraper 5 are composed of a heat insulation plate 61, a heat-conducting copper plate 62, an electric heating plate 63, a cooling plate 64, and a coolant channel 65. The heat-conducting copper plate 62 is distributed on one side close to the discharge chute 21. The electric heating plate 63 inside the heat-conducting copper plate 62... When heating is initiated, the heat-conducting copper plate 62 conducts heat to make high-temperature contact with the slurry below, thereby preventing the slurry from adhering to the contact surface of the first heating scraper 4 or the second heating scraper 5. The outer wall of the cooling plate 64 is provided with inlet and outlet water pipes corresponding to the coolant flow channel 65. At the same time, the inlet and outlet water pipes of the cooling plate 64 are connected to the external cooling water circulation supply equipment, so that the coolant flow channel 65 inside the cooling plate 64 continuously circulates cooling water. This allows the surface of the slurry to be quickly cooled through contact with the cooling plate 64, thereby achieving rapid shaping of the slurry surface, avoiding local collapse or flow displacement, and improving its molding quality.

[0021] Furthermore, a heat-conducting copper plate 62 is fixedly connected to the side of the insulation plate 61 closest to the hopper 2, and an electric heating plate 63 is embedded inside the heat-conducting copper plate 62. A cooling plate 64 is fixedly connected to the side of the insulation plate 61 away from the heat-conducting copper plate 62, and a cooling liquid channel 65 is opened inside the cooling plate 64. The insulation plate 61 is made of aerogel, which has a good heat preservation effect and avoids the mutual transfer of heat between the two sides of the insulation plate 61. Thus, the heating of the electric heating plate 63 makes the side of the scraper in contact with the hot melt adhesive slurry present a high temperature, thereby preventing the scraper surface from sticking. At the same time, the cooling of the cooling plate 64 rapidly cools down the slurry surface and forms the slurry film, thereby improving the forming quality of the slurry film.

[0022] Working principle: First, the mixed hot melt adhesive slurry is added into the hopper 2. The base belt of the casting host 1 is displaced below the hopper 2. The slurry inside the hopper 2 is discharged through the discharge chute 21. With the assistance of the first heating scraper 4 and the second heating scraper 5, the thickness and width of the slurry are assisted in positioning. The side of the first heating scraper 4 and the second heating scraper 5 that is in contact with the slurry is heated by the built-in electric heating plate 63 to prevent the scraper surface from sticking. At the same time, under the temperature isolation of the heat insulation plate 61, the surface of the slurry is rapidly cooled and formed by the cooling plate 64, which can improve the forming quality of the slurry film.

[0023] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A high temperature tack resistant hot melt adhesive casting apparatus characterized by: The casting machine includes a casting host (1), a hopper (2) is provided above the casting host (1), a discharge trough (21) is provided at one end of the hopper (2), and a positioning plate (22) is provided above the hopper (2) corresponding to the discharge trough (21). A drying box (3) is covered above the casting host (1). The first heating scraper (4) and the second heating scraper (5) are attached to the positioning plate (22) on the side away from the hopper (2) in an up-down sliding manner. The second heating scraper (5) is attached to the lower surface of the positioning plate (22) in a left-right sliding manner. The second heating scraper (5) is symmetrically distributed on both sides below the first heating scraper (4), and the lower surface of the second heating scraper (5) is attached to the base belt of the casting host (1). The cylinder (6) is fixedly connected to the outer wall of the hopper (2) and is used for the displacement adjustment of the first heating scraper (4) and the second heating scraper (5).

2. The high temperature tack-free hot melt adhesive casting apparatus of claim 1, wherein: Both ends of the positioning plate (22) are fixedly connected to clamps (23). The cross-section of the clamps (23) is L-shaped, and the first heating scraper (4) is slidably connected between the positioning plate (22) and the clamps (23).

3. The high temperature tacky hot melt adhesive casting apparatus of claim 2, wherein: The cylinder (6) is fixedly connected to the outer wall of the hopper (2) by a bracket. The top of the first heating scraper (4) is fixedly connected to a first lug (41), and the second heating scraper (5) is fixedly connected to a second lug (51) on the side away from each other. The outer walls of the first lug (41) and the second lug (51) are fixedly connected to the lifting end of the cylinder (6).

4. The high temperature tacky hot melt adhesive casting apparatus of claim 3, wherein: The first heating scraper (4) and the second heating scraper (5) have the same thickness, and the thickness of the second heating scraper (5) is equal to the thickness of the positioning plate (22). The first heating scraper (4) is sealed and slidably attached to the side of the positioning plate (22) and the second heating scraper (5) away from the hopper (2).

5. The high temperature tack-free hot melt adhesive casting apparatus of claim 1, wherein: The first heating scraper (4) and the second heating scraper (5) have the same structure. Both the first heating scraper (4) and the second heating scraper (5) are composed of a heat insulation plate (61), a heat-conducting copper plate (62), an electric heating plate (63), a cooling plate (64) and a coolant flow channel (65), and the heat-conducting copper plate (62) is distributed close to the discharge trough (21) on one side.

6. A high temperature tack-free hot melt adhesive casting apparatus as claimed in claim 5, wherein: A heat-conducting copper plate (62) is fixedly connected to the side of the insulation plate (61) near the hopper (2), and an electric heating plate (63) is embedded inside the heat-conducting copper plate (62). A cooling plate (64) is fixedly connected to the side of the insulation plate (61) away from the heat-conducting copper plate (62), and a coolant flow channel (65) is opened inside the cooling plate (64). Inlet and outlet water pipes are provided on the outer wall of the cooling plate (64) corresponding to the coolant flow channel (65).

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