Sheet defoaming device

Abstract

The utility model relates to the technical field of sheet processing, and discloses a sheet defoaming device which comprises a die holder connected with a baking component. The coating and scraping mechanism is mounted on the die holder, and the coating and scraping mechanism comprises a scraping plate and a driving part for driving the scraping plate; and the discharging mechanism is arranged above the die holder, and the discharging mechanism comprises a discharging hopper and a stirring assembly installed on the discharging hopper. According to the foaming machine, pasty materials and foaming agents are conveyed into the discharging mechanism according to the specified proportion, the materials and the foaming agents are fully mixed through the stirring assembly and then discharged into the die holder, and under the heating action of the baking assembly, the foaming agents absorb heat and then form bubbles on the surface of a liquid film; and bubbles on the surface of the liquid film are scraped through the coating and scraping mechanism, the sheet is formed after cooling, most bubbles in the sheet can be removed under the action of the foaming agent, the defoaming effect is improved, and the problem that air holes in the sheet are difficult to remove is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sheet material processing technical field, concretely relates to a sheet material defoaming device. BACKGROUND

[0002] In some sheet material processing technology, the PVC raw material is mixed with additives and heated to form a paste material, which is then coated and scraped into a mold to cool and form a sheet. The existing coating and scraping device includes a coating table, a rear scraper device and a front scraper device are arranged on the coating table; the rear scraper device includes a crossbeam, a fixed block, a movable block, an adjusting screw and a first scraper arranged on the coating table support; the front scraper device includes a sliding frame, a sliding block, an air cylinder and a second scraper arranged on the coating table support; the device is provided with two scraper devices above the release paper passing area, the first scraper height is controlled by the adjusting bolt in the rear scraper device, which is scraped above the release paper, the second scraper height is controlled by the air cylinder extension in the front scraper device, which is scraped above the release paper, the release paper is scraped by the second scraper first, and the surface of the coating is scraped again by the first scraper, which flattens the surface pores.

[0003] The existing coating and scraping device has the following problems: the pores in the sheet formed after processing are difficult to remove, resulting in poor sheet performance.

[0004] Based on the above situation, a sheet defoaming device is needed to solve the problem of difficult removal of pores in the sheet. INVENTION CONTENTS

[0005] The utility model aims at: for the existing coating and scraping device, the pores in the sheet formed after processing are difficult to remove, resulting in poor sheet performance, which solves the problem of difficult removal of pores in the sheet.

[0006] The technical scheme of the utility model is as follows:

[0007] A sheet defoaming device, comprising:

[0008] A mold base connected with a baking assembly;

[0009] A coating and scraping mechanism installed on the mold base, the coating and scraping mechanism comprising a scraper and a driving part for driving the scraper;

[0010] A feeding mechanism arranged above the mold base, the feeding mechanism comprising a feeding hopper and a stirring assembly installed on the feeding hopper.

[0011] Existing coating devices often result in sheets with poor performance due to the presence of pores inside. In this solution, a paste-like material and a foaming agent are fed into a feeding mechanism at a specified ratio. The mixing assembly thoroughly mixes the material and foaming agent before feeding it into a mold. Under the heating action of the baking assembly, the high temperature causes the foaming agent to absorb a large amount of heat in a short time, forming surface-active substances that surround air bubbles on the liquid film surface. The coating mechanism then scrapes away these bubbles, and after cooling, a sheet is formed. The foaming agent effectively removes most of the bubbles inside the sheet, improving the degassing effect and solving the problem of difficult-to-remove pores inside the sheet.

[0012] Furthermore, this solution is not limited to the specific structure of the drive unit. One feasible solution is that the drive unit includes a linear motor and a movable block driven by the linear motor. The scraper is mounted on the movable block. When this solution is adopted, the linear motor drives the movable block and the scraper to move synchronously, so as to scrape off the air bubbles on the surface of the liquid film.

[0013] Furthermore, this solution does not exclusively limit the specific structure of the baking assembly. One feasible solution is that the baking assembly includes a cavity and a hot oil conduit is installed on the cavity. When this solution is adopted, heat-conducting oil at a preset temperature is delivered to the cavity through the hot oil conduit, and the cavity heats and bakes the mold base and the material inside the mold base so that the foaming agent can form bubbles after being heated.

[0014] Furthermore, this solution does not exclusively limit the specific structure of the stirring assembly. One feasible solution is that the stirring assembly includes stirring blades and a stirring motor for driving the stirring blades. When this solution is adopted, the stirring motor drives the stirring blades to rotate, which can conveniently and quickly mix the material with the foaming agent.

[0015] Furthermore, to further enhance the degassing effect, one feasible solution is to connect the mold base to a housing and install a vacuum pump on the housing. When this solution is adopted, the foaming agent is more conducive to forming bubbles under negative pressure, which can further enhance the degassing effect.

[0016] Furthermore, to facilitate the removal of the sheet from the box, one feasible solution is to install a rotating door on the box with a sealing strip. With this solution, the sheet can be easily removed from the box by opening the rotating door, and the sealing strip helps maintain negative pressure inside the box when the rotating door is closed.

[0017] Compared with existing technologies, the beneficial effects of this utility model are:

[0018] 1. The paste-like material and foaming agent are conveyed to the feeding mechanism in a specified ratio, and the material and foaming agent are fully mixed by the stirring component before being fed into the mold base. Under the heating action of the baking component, due to the high temperature, the foaming agent absorbs a large amount of heat in a short time, and the surface actives surround the air on the liquid film surface to form bubbles. Then, the bubbles on the surface of the liquid film are scraped off by the coating mechanism. After cooling, a sheet is formed. Under the action of the foaming agent, most of the bubbles inside the sheet can be removed, improving the degassing effect and solving the problem of difficult removal of pores inside the sheet.

[0019] 2. Since the drive unit includes a linear motor and a movable block driven by the linear motor, the scraper is mounted on the movable block. The linear motor drives the movable block and the scraper to move synchronously, so as to scrape off the air bubbles on the surface of the liquid film.

[0020] Third, since the mold base is connected to the box and the box is equipped with a vacuum pump, the foaming agent is more conducive to forming bubbles under negative pressure, which can further increase the degassing effect. Attached Figure Description

[0021] Figure 1 This is a first-view structural diagram of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the overall second-view structure of an embodiment of the present utility model;

[0023] Figure 3 for Figure 1 Enlarged view of point A in the image;

[0024] Figure 4 for Figure 2 Enlarged view of point B in the image;

[0025] Figure 5 This is a half-sectional structural diagram of an embodiment of the present invention.

[0026] Figure label:

[0027] 1. Mold base; 2. Baking assembly; 3. Coating mechanism; 4. Feeding mechanism; 5. Housing;

[0028] 21. Cavity; 22. Hot oil conduit;

[0029] 31. Scraper; 32. Drive unit;

[0030] 321. Linear motor; 322. Movable block;

[0031] 41. Feed hopper; 42. Mixing assembly; 43. First conveying pipe; 44. Second conveying pipe; 45. Electric valve;

[0032] 421. Agitator blades; 422. Agitator motor;

[0033] 51. Vacuum pump; 52. Rotary door; 53. Sealing strip. Detailed Implementation

[0034] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0035] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0036] Example:

[0037] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 A sheet degassing device, comprising:

[0038] Mold base 1, with baking component 2 connected to it;

[0039] The coating mechanism 3 is mounted on the mold base 1. The coating mechanism 3 includes a scraper 31 and a drive unit 32 for driving the scraper 31.

[0040] The feeding mechanism 4 is located above the mold base 1. The feeding mechanism 4 includes a feeding hopper 41 and a stirring assembly 42 installed on the feeding hopper 41.

[0041] Existing coating devices often result in sheets with poor performance due to the presence of pores inside. In this solution, a paste-like material and a foaming agent are fed into the feeding mechanism 4 in a specified ratio. The mixing component 42 thoroughly mixes the material and the foaming agent before feeding it into the mold base 1. Under the heating effect of the baking component 2, the foaming agent absorbs a large amount of heat in a short time due to the high temperature. The surface actives then surround the air on the liquid film surface, forming bubbles. The coating mechanism 3 then scrapes off the bubbles on the liquid film surface. After cooling, a sheet is formed. The foaming agent removes most of the bubbles inside the sheet, improving the degassing effect and solving the problem of difficult-to-remove pores inside the sheet.

[0042] Reference Figure 3 This solution does not limit the specific structure of the drive unit 32. One feasible solution is that the drive unit 32 includes a linear motor 321 and a movable block 322 driven by the linear motor 321. The scraper 31 is mounted on the movable block 322. When this solution is adopted, the linear motor 321 drives the movable block 322 and the scraper 31 to move synchronously, so as to scrape off the air bubbles on the surface of the liquid film.

[0043] Reference Figure 5 This solution does not limit the specific structure of the baking component 2. One feasible solution is that the baking component 2 includes a cavity 21 and a hot oil conduit 22 is installed on the cavity 21. When this solution is adopted, heat-conducting oil at a preset temperature is transported to the cavity 21 through the hot oil conduit 22. The cavity 21 heats and bakes the mold base 1 and the material in the mold base 1 so that the foaming agent can form bubbles after being heated.

[0044] This solution does not limit the specific structure of the mixing assembly 42. One feasible solution is that the mixing assembly 42 includes a mixing blade 421 and a mixing motor 422 for driving the mixing blade 421. When this solution is adopted, the mixing motor 422 drives the mixing blade 421 to rotate, which can conveniently and quickly mix the material with the foaming agent.

[0045] Reference Figure 2 Optionally, in this embodiment, the hopper 41 is connected to a first conveying pipe 43 and a second conveying pipe 44. When this scheme is adopted, the foaming agent and the material are conveyed into the hopper 41 through the first conveying pipe 43 and the second conveying pipe 44 respectively.

[0046] Reference Figure 2 and Figure 4 To further enhance the degassing effect, one feasible solution is to connect the mold base 1 to the housing 5 and install a vacuum pump 51 on the housing 5. When this solution is adopted, the foaming agent is more conducive to forming bubbles under negative pressure, which can further enhance the degassing effect.

[0047] To facilitate the removal of the sheet from the box 5, one feasible solution is to install a rotating door 52 on the box 5 and a sealing strip 53 on the rotating door 52. With this solution, the sheet can be easily removed from the box 5 by opening the rotating door 52, and the sealing effect of the sealing strip 53 helps to maintain negative pressure inside the box 5 after the rotating door 52 is closed.

[0048] Reference Figure 5 Preferably, an electric valve 45 is installed on the discharge pipe of the hopper 41. When this scheme is adopted, the electric valve 45 is closed so that the mixing component 42 can fully mix the material and the foaming agent, and can prevent the material from being sucked into the box 5 after a negative pressure is formed inside the box 5.

[0049] To address the problem of difficult-to-remove pores inside sheet materials, this solution involves feeding a paste-like material and a foaming agent into the feeding mechanism 4 at a specified ratio. The mixing component 42 then thoroughly mixes the material and foaming agent before feeding it into the mold base 1. Under the heating action of the baking component 2, the foaming agent absorbs a large amount of heat in a short time due to the high temperature, causing surface-active substances to surround air on the liquid film surface, forming individual bubbles. The coating mechanism 3 then scrapes off these bubbles from the liquid film surface. After cooling, a sheet material is formed. The foaming agent effectively removes most of the bubbles inside the sheet, improving the degassing effect and solving the problem of difficult-to-remove pores inside the sheet material.

[0050] In order to facilitate the removal of air bubbles from the surface of the liquid film, in this solution, the drive unit 32 includes a linear motor 321 and a movable block 322 driven by the linear motor 321. The scraper 31 is mounted on the movable block 322. The linear motor 321 drives the movable block 322 and the scraper 31 to move synchronously, so as to facilitate the removal of air bubbles from the surface of the liquid film.

[0051] To further enhance the degassing effect, in this scheme, since the mold base 1 is connected to the box 5 and the box 5 is equipped with a vacuum pump 51, the foaming agent is more conducive to forming bubbles under negative pressure, which can further enhance the degassing effect.

[0052] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sheet degassing device, characterized in that, include: Mold base (1), wherein the mold base (1) is connected to a baking assembly (2); The coating mechanism (3) is mounted on the mold base (1). The coating mechanism (3) includes a scraper (31) and a drive unit (32) for driving the scraper (31). The feeding mechanism (4) is located above the mold base (1). The feeding mechanism (4) includes a feeding hopper (41) and a stirring assembly (42) installed on the feeding hopper (41).

2. The sheet degassing device according to claim 1, characterized in that, The drive unit (32) includes a linear motor (321) and a movable block (322) driven by the linear motor (321), and the scraper (31) is mounted on the movable block (322).

3. The sheet degassing device according to claim 1, characterized in that, The baking assembly (2) includes a cavity (21) and a hot oil conduit (22) is installed on the cavity (21).

4. The sheet degassing device according to claim 1, characterized in that, The stirring assembly (42) includes stirring blades (421) and a stirring motor (422) for driving the stirring blades (421).

5. The sheet degassing device according to claim 1, characterized in that, The mold base (1) is connected to the housing (5) and a vacuum pump (51) is installed on the housing (5).

6. The sheet degassing device according to claim 5, characterized in that, The housing (5) is equipped with a rotating door (52) and a sealing strip (53) is installed on the rotating door (52).

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