Processing equipment for polyurethane polishing pad

Abstract

The utility model discloses processing equipment for a polyurethane polishing pad, and relates to the technical field of polyurethane polishing pad processing, the processing equipment for the polyurethane polishing pad comprises a drying oven shell, a heating mechanism is arranged at the upper end of the drying oven shell, the front end of one side of the drying oven shell is connected with a sealing door through a hinge, and the other side of the drying oven shell is connected with the sealing door through a hinge. A drying cavity is formed in the drying oven shell, material receiving assemblies are arranged in the drying cavity, the multiple material receiving assemblies are arranged up and down at equal intervals, supporting frames used for supporting the material receiving assemblies are welded to the inner walls of the two sides of the drying cavity, the number of the supporting frames is multiple, and pressing assemblies are arranged at the two ends of each material receiving assembly. According to the scheme, the problems that when a solvent in resin is evaporated and removed in the production process of an existing polyurethane polishing pad, red line hot air easily blows release paper, the phenomenon of non-uniformity of PU resin slurry scraped and coated on the surface is caused, the release paper is also easily folded, and the drying and evaporation effects are poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane polishing pad processing, in particular to a processing device for polyurethane polishing pads. Background Technique

[0002] A polishing pad, also known as a polishing leather, polishing cloth, or polishing sheet, is an important auxiliary material that determines the surface quality in chemical mechanical polishing. The raw material often uses a resin material. During production, the solvent in the resin needs to be evaporated through an oven to obtain a PU polyurethane film cortex.

[0003] For example, the Chinese patent with the publication number CN205403345U (an epoxy resin oven device): It includes a box body and a placement plate. The front of the box body is provided with a box door through a hinge. An observation window is provided on the opposite side of the box door surface. Support feet are provided on both sides at the lower end of the box body, and rollers are provided on the support feet. A number of equally spaced placement plates are provided in the box body. A pull ring is provided on the lower end surface of the placement plate. Support blocks are provided on the inner walls of the box body at both ends of the placement plate. Pulleys are provided on the placement plate above the support blocks. An air inlet hood and an exhaust hood are respectively provided at the left and right ends of the box body. The outer port of the air inlet hood is connected to a heating box through a left air duct. A thermometer is provided on the left air duct near the heating box. The right port of the heating box is connected to the air outlet end of a dehumidifying box. The air inlet end of the dehumidifying box is connected to a circulating fan. The air inlet end of the circulating fan is connected to the air outlet end of a right air duct through a right air duct. The structure of the utility model is simple, reasonable, and convenient for handling. It can timely remove the moisture in the box body and improve the drying efficiency of the device.

[0004] However, when the existing polyurethane polishing pads evaporate and remove the solvent in the resin during production, the red-hot air easily blows the release paper, resulting in unevenness of the PU resin slurry scraped on the surface. And it is also easy to cause the release paper to fold, thus resulting in poor drying and evaporation effect. Therefore, it does not meet the existing requirements. For this reason, we propose a processing device for polyurethane polishing pads. Content of the Utility Model

[0005] The purpose of the utility model is to provide a processing device for polyurethane polishing pads to solve the problem that when the existing polyurethane polishing pads evaporate and remove the solvent in the resin during production, the red-hot air easily blows the release paper, resulting in unevenness of the PU resin slurry scraped on the surface, and it is also easy to cause the release paper to fold, thus resulting in poor drying and evaporation effect as mentioned in the above background technique.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a processing equipment for a polyurethane polishing pad, comprising: an oven shell, a heating mechanism is arranged at the upper end of the oven shell, a sealing door is hingedly connected to the front end of one side of the oven shell, a drying chamber is arranged inside the oven shell, a material receiving assembly is arranged inside the drying chamber, a plurality of the material receiving assemblies are equidistantly arranged up and down, support frames for supporting the material receiving assemblies are welded to the inner walls on both sides of the drying chamber, and a plurality of support frames are arranged, and downward pressing assemblies are arranged at both ends of the material receiving assembly.

[0007] Preferably, the material receiving assembly comprises a material receiving plate, a surface of the material receiving plate is provided with ventilation holes penetrating up and down, and a plurality of the material receiving plates are provided, and both ends of the material receiving plate are placed on the support frame.

[0008] Preferably, the surfaces of the receiving plate near both ends are provided with connecting grooves, and the connecting grooves penetrate the receiving plate from top to bottom, and a load-bearing column is welded on the lower surface of the receiving plate near the front end, and the load-bearing column is CM long.

[0009] Preferably, the pressing assembly comprises a pressing plate, a connecting plug plate is welded on the lower surface of one end of the pressing plate, and a connecting slot is arranged on the upper surface of one end of the pressing plate.

[0010] Preferably, a control panel is provided on the front end surface of the heating mechanism, an air slot is provided on the upper surface of the heating mechanism, and a hot air outlet for discharging hot air is provided on the rear surface inside the drying chamber.

[0011] Preferably, a door lock assembly for locking the sealed door is provided at one end of the sealed door.

[0012] Preferably, the internal temperature of the drying chamber is maintained at 140°C.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model realizes the following functions: by arranging a material receiving component inside the drying chamber and arranging pressing components at both ends of the material receiving component, the release paper is placed on the upper surface of the material receiving plate, and then the PU resin slurry is scraped and coated on the release paper. Then, the connecting plug board of the pressing component is inserted into the connecting groove of the material receiving plate. Relying on the downward pressure of the pressing component, the lower pressing plate of the pressing component presses and fixes both ends of the connection part from top to bottom, thereby preventing the release paper from moving and improving stability. When drying, the hot air is not easy to blow the release paper, thus avoiding the offset and stacking of the PU resin slurry, which may cause unevenness, and improving the drying efficiency. Moreover, when taking out the material receiving plate after evaporation, the operator holds the stress column to take it out, instead of grasping the edge of the material receiving plate by hand, avoiding the contact between the operator's hand and the PU resin slurry on the surface of the release paper, and solving the problems existing in the production of existing polyurethane polishing pads. When evaporating and removing the solvent in the resin, the hot air is easy to blow the release paper, resulting in unevenness of the PU resin slurry scraped and coated on the surface, and it is also easy to cause folding of the release paper, thus leading to poor drying and evaporation effect.

[0015] 2. By arranging a connecting slot on the upper surface of one end of the lower pressing plate, when it is necessary to stack and increase the drying quantity of the PU resin slurry, the release paper is fixed on the material receiving plate in the same way. Then, the material receiving components to be stacked are placed on the upper end of the material receiving component that has been placed on the support frame. When placing, the connecting plug board of the material receiving component to be stacked is inserted into the connecting slot of the material receiving component that has been placed on the support frame, so as to realize the stacking of multiple material receiving components, improving flexibility and space utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 is a schematic diagram of the structure of the material receiving component of the utility model;

[0018] Figure 3 is a schematic diagram of the structure of the pressing component of the utility model;

[0019] Figure 4 is a schematic diagram of the bottom view of the pressing component of the utility model;

[0020] In the figure: 1. Oven housing; 2. Heating mechanism; 3. Hot air outlet; 4. Sealing door; 5. Drying chamber; 6. Material receiving component; 7. Pressing component; 8. Support frame; 9. Material receiving plate; 10. Ventilation holes; 11. Connecting groove; 12. Stress column; 13. Lower pressing plate; 14. Connecting slot; 15. Connecting plug board; 16. Control panel; 17. Air duct; 18. Door lock component. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] Please refer to Figures 1-4 , an embodiment provided by the present utility model: a processing device for a polyurethane polishing pad, including: an oven housing 1, a heating mechanism 2 is arranged at the upper end of the oven housing 1, a sealing door 4 is hinged to the front end of one side housing of the oven housing 1, a drying chamber 5 is arranged inside the oven housing 1, a material receiving component 6 is arranged inside the drying chamber 5, and several material receiving components 6 are arranged equidistantly up and down. Support frames 8 for supporting the material receiving component 6 are welded to both inner walls of the drying chamber 5, and several support frames 8 are provided. Pressing components 7 are arranged at both ends of the material receiving component 6. The material receiving component 6 includes a material receiving plate 9, air permeation holes 10 penetrating up and down are arranged on the surface of the material receiving plate 9, and several material receiving plates 9 are provided. Both ends of the material receiving plate 9 are placed on the support frames 8. Connecting grooves 11 are arranged on the surfaces of both ends of the material receiving plate 9 close to the ends, and the connecting grooves 11 penetrate through the material receiving plate 9 up and down. The pressing component 7 includes a lower pressing plate 13, a connecting insertion plate 15 is welded to the lower surface of one end of the lower pressing plate 13, and a connecting slot 14 is arranged on the upper surface of one end of the lower pressing plate 13. The internal temperature of the drying chamber 5 is maintained at 140 °C.

[0023] Place the release paper on the upper surface of the material receiving plate 9, then scrape the PU resin slurry on the release paper, and then insert the connecting insertion plate 15 of the pressing component 7 into the connecting groove 11 of the material receiving plate 9. Relying on the downward pressure of the pressing component 7, the lower pressing plate 13 of the pressing component 7 presses and fixes both ends of the connection part from top to bottom, thereby preventing the release paper from moving and improving stability. When drying, the hot air is not easy to blow the release paper, thereby preventing the PU resin slurry from shifting and stacking unevenly, improving the drying efficiency, generating heat by the heating mechanism 2, with the temperature at 140 °C, entering the drying chamber 5 from the hot air outlet 3, and evaporating and removing the solvent in the PU resin slurry.

[0024] Please refer to Figure 2 , a stress column 12 is welded to the lower surface of the material receiving plate 9 close to the front end, and the stress column 12 is 10 CM long. When taking out the material receiving plate 9 after evaporation, the operator holds the stress column 12 to take it out, without grasping the edge of the material receiving plate 9, to avoid the operator's hand contacting the PU resin slurry on the surface of the release paper.

[0025] Please refer to Figure 1, a control panel 16 is provided on the front end face of the heating mechanism 2, a wind groove 17 is provided on the upper surface of the heating mechanism 2, a hot air outlet 3 for discharging hot air is provided on the rear surface inside the drying chamber 5, and one end of the sealing door 4 is provided with a door lock assembly 18 for locking the sealing door 4. After placing the release paper, close the sealing door 4 and lock it through the door lock assembly 18. Utilize the heating mechanism 2 to generate heat at a temperature of 140 °C, which enters the inside of the drying chamber 5 from the hot air outlet 3 to evaporate and remove the solvent in the PU resin slurry.

[0026] Working principle: During use, place the release paper on the upper surface of the receiving plate 9, then scrape the PU resin slurry on the release paper, and then insert the connecting plug 15 of the pressing-down assembly 7 into the connecting groove 11 of the receiving plate 9. Relying on the downward pressure of the pressing-down assembly 7, the lower pressing plate 13 of the pressing-down assembly 7 presses down and fixes both ends of the connection part from top to bottom, thereby preventing the release paper from moving and improving stability. Insert the receiving plate 9 into the drying chamber 5, and both ends of the receiving plate 9 are placed on the support frame 8 for support. At this time, each receiving component 6 is in a single-layer form. When it is necessary to stack and increase the drying quantity of the PU resin slurry, fix the release paper on the receiving plate 9 in the same way, and then place the receiving component 6 to be stacked on the upper end of the receiving component 6 that has been placed on the support frame 8. When placing, insert the connecting plug 15 of the receiving component 6 to be stacked into the connecting slot 14 of the receiving component 6 that has been placed on the support frame 8, so as to realize the stacking of multiple receiving components 6, and there is a gap between the two release papers to facilitate the flow of hot air. After placing, close the sealing door 4, utilize the heating mechanism 2 to generate heat at a temperature of 140 °C, which enters the inside of the drying chamber 5 from the hot air outlet 3 to evaporate and remove the solvent in the PU resin slurry. When taking out the receiving plate 9 after evaporation, hold the force-bearing column 12 with the hand and do not grasp the edge of the receiving plate 9 to avoid the contact between the hand of the operator and the PU resin slurry on the surface of the release paper.

[0027] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A processing device for a polyurethane polishing pad, comprising an oven shell (1), a heating mechanism (2) being arranged at the upper end of the oven shell (1), a sealing door (4) being hingedly connected to the front end of one side of the oven shell (1), characterized in that: A drying chamber (5) is provided inside the oven shell (1), and a material receiving assembly (6) is provided inside the drying chamber (5). A plurality of the material receiving assemblies (6) are placed equidistantly up and down. Support frames (8) for supporting the material receiving assemblies (6) are welded to the inner walls on both sides of the drying chamber (5), and a plurality of support frames (8) are provided. Down-pressing assemblies (7) are provided at both ends of the material receiving assembly (6).

2. The processing equipment for a polyurethane polishing pad according to claim 1, characterized in that: The material receiving assembly (6) comprises a material receiving plate (9), the surface of which is provided with ventilation holes (10) penetrating from top to bottom, and the material receiving plate (9) is provided with a plurality of ventilation holes, and both ends of the material receiving plate (9) are placed on the support frame (8).

3. The processing equipment for a polyurethane polishing pad according to claim 2, characterized in that: The surfaces of the receiving plate (9) close to both ends are provided with connection grooves (11), and the connection grooves (11) penetrate the receiving plate (9) from top to bottom. The lower surface of the receiving plate (9) close to the front end is welded with a load-bearing column (12), and the load-bearing column (12) is 10 cm long.

4. The processing equipment for a polyurethane polishing pad according to claim 1, characterized in that: The pressing assembly (7) comprises a pressing plate (13), a connecting plug plate (15) is welded on the lower surface of one end of the pressing plate (13), and a connecting slot (14) is provided on the upper surface of one end of the pressing plate (13).

5. The processing equipment for a polyurethane polishing pad according to claim 1, characterized in that: The front end surface of the heating mechanism (2) is provided with a control panel (16), the upper surface of the heating mechanism (2) is provided with an air slot (17), and the rear surface inside the drying chamber (5) is provided with a hot air outlet (3) for discharging hot air.

6. The processing equipment for a polyurethane polishing pad according to claim 1, characterized in that: One end of the sealed door (4) is provided with a door lock assembly (18) for locking the sealed door (4).

7. The processing equipment for a polyurethane polishing pad according to claim 1, characterized in that: The internal temperature of the drying chamber (5) is maintained at 140°C.

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