Laboratory coating machine

Abstract

The utility model provides a laboratory coater which comprises a rack, an unwinding mechanism, a coating mechanism, a film covering mechanism and a winding mechanism, the rack comprises a base, and a first mounting rack, a second mounting rack, a third mounting rack and a fourth mounting rack which are sequentially fixed above the base from left to right; the unwinding mechanism, the coating mechanism, the film covering mechanism and the winding mechanism are fixed to a first mounting frame, a second mounting frame, a third mounting frame and a fourth mounting frame correspondingly, and the coating mechanism comprises an adjusting swing arm, a coating bottom roller, a coating pressing roller, a thickness gauge, an adjusting bolt, a coating supporting plate, a second guide roller and a third guide roller. The device has the advantages that the device can adapt to small-batch plaster coating tests, is convenient to use and clean and flexible to adjust, and can save labor cost and time cost.

Description

Technical Field

[0001] The utility model relates to the field of plaster coating equipment, and particularly relates to a laboratory coater. Background Art

[0002] Generally, a coater needs to be used in cooperation with a batching reactor of upstream equipment, and there is a tight connecting pipeline between the two. However, the existing coaters are mainly used for large-scale production lines. For small-scale experiments, there are many disadvantages. For example, during experiments, it is necessary to clean the reactor and the feeding pipeline. The stirring device of the reactor weighs 100 kg, and the stirring device needs to be suspended every time the reactor is cleaned, which is very time-consuming and laborious, and there are also safety hazards. In addition, it is difficult to adjust the spraying width of the coater. Each time, the nozzle needs to be disassembled, the inner cavity needs to be cleaned, and the width scale plate needs to be replaced, and the workload is very large. Moreover, the amount of materials required for experiments is very small, and the coating size is about twenty meters each time. Therefore, using the existing coater for experiments is not convenient for operation and will cause unnecessary waste. Therefore, it is necessary to make a laboratory coater to solve the above problems. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a laboratory coater to solve the problems mentioned in the background art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A laboratory coater includes a frame, an unwinding mechanism, a coating mechanism, a film laminating mechanism, and a winding mechanism. The frame includes a base and a first mounting frame, a second mounting frame, a third mounting frame, and a fourth mounting frame that are sequentially fixed above the base from left to right. The unwinding mechanism, the coating mechanism, the film laminating mechanism, and the winding mechanism are respectively fixed to the first mounting frame, the second mounting frame, the third mounting frame, and the fourth mounting frame;

[0006] The coating mechanism includes an adjusting swing arm, a coating bottom roller, a coating pressure roller, a thickness gauge, an adjusting bolt, a coating support plate, a second guide roller, and a third guide roller. There are two groups of second mounting frames, which are respectively fixed on the front and rear sides of the base. The left end of the adjusting swing arm is rotatably installed on the second mounting frame. There are two groups of adjusting swing arms, which respectively correspond to the two groups of second mounting frames. The thickness gauge is fixed to the right end of the adjusting swing arm and the lower end contacts the second mounting frame. The adjusting bolt is threadedly connected to the right end of the adjusting swing arm and the lower end contacts the second mounting frame. The coating bottom roller is rotatably installed on the second mounting frame. The coating pressure roller is rotatably installed on the adjusting swing arm and corresponds to the upper side of the coating bottom roller. The coating support plate is fixed to the second mounting frame. The right end of the coating support plate slopes downward and corresponds to the left side of the coating bottom roller. The second guide roller and the third guide roller are both rotatably installed on the second mounting frame. The second guide roller corresponds to the lower side of the coating bottom roller. The third guide roller corresponds to the right side of the coating bottom roller.

[0007] Further description of the present utility model: The unwinding mechanism includes a first unwinding roller, a first guiding roller, a first brake disc, a first fixing block, a first screw, a first spring and a first belt. The first unwinding roller and the first guiding roller are rotatably mounted on the first mounting frame. The first unwinding roller is located above the first guiding roller. The first brake disc is fixed to one end of the first unwinding roller. Two groups of first fixing blocks are provided and are respectively fixed on the left and right sides of the first mounting frame. The first screw is threadedly connected to one group of first fixing blocks. The lower end of the first spring is fixed to the upper end of the first screw. One end of the first belt is fixed to the upper end of the first spring. The other end of the first belt is wound around the upper end of the first brake disc and then fixed to the other group of first fixing blocks.

[0008] Further description of the present utility model: The film laminating mechanism includes a second unwinding roller, a fourth guiding roller, a film laminating roller, a second brake disc, a second fixing block, a second screw, a second spring and a second belt. The second unwinding roller, the fourth guiding roller and the film laminating roller are rotatably mounted on the third mounting frame. The second unwinding roller is located above the fourth guiding roller. The film laminating roller is located below the fourth guiding roller. Two groups of film laminating rollers are arranged in the vertical direction. The second brake disc is fixed to one end of the second unwinding roller. Two groups of second fixing blocks are provided and are respectively fixed on the left and right sides of the third mounting frame. The second screw is threadedly connected to one group of second fixing blocks. The lower end of the second spring is fixed to the upper end of the second screw. One end of the second belt is fixed to the upper end of the second spring. The other end of the second belt is wound around the upper end of the second brake disc and then fixed to the other group of second fixing blocks.

[0009] Further description of the present utility model: The winding mechanism includes a winding roller, a rotating motor, a first synchronous gear, a second synchronous gear and a synchronous belt. The winding roller is rotatably mounted on the fourth mounting frame. The rotating motor is fixed on the fourth mounting frame. The first synchronous gear is fixed to one end of the winding roller. The second synchronous gear is fixed to the power output end of the rotating motor. The synchronous belt is wound around the outer circumferences of the first synchronous gear and the second synchronous gear. The synchronous belt meshes with both the first synchronous gear and the second synchronous gear.

[0010] The beneficial effects of the present utility model are as follows: The unwinding mechanism is used to place the non-woven fabric roll and unwind it under the traction of the winding mechanism. The non-woven fabric passes through the coating mechanism, the film laminating mechanism, and the winding mechanism in sequence. The coating mechanism coats the plaster on the non-woven fabric, and the film laminating mechanism covers the release film on the plaster. Under the drive of the winding mechanism, the non-woven fabric after coating and film laminating is wound. When small-batch plaster coating tests are required, the prepared plaster is poured onto the coating pallet. The non-woven fabric bypasses the second guide roller and passes between the coating bottom roller and the coating pressure roller. The plaster adheres to the non-woven fabric from the coating pallet. By rotating the adjusting bolt, the angle of the adjusting swing arm can be adjusted, and the adjustment amplitude can be understood from the reading on the thickness gauge, so as to adjust the gap between the coating bottom roller and the coating pressure roller, and further adjust the thickness of the plaster coated on the non-woven fabric. After coating, it passes through the third guide roller and continues to be conveyed to the subsequent process. The advantage of this design is that it can adapt to small-batch plaster coating tests, which is not only convenient to use, easy to clean, and flexible to adjust, but also can save labor costs and time costs. Description of the Drawings

[0011] Figure 1 is the overall structure diagram of the present utility model;

[0012] Figure 2 is the overall structure diagram of the present utility model (the frame part is hidden);

[0013] Figure 3 is the overall structure diagram of the present utility model (rear view perspective);

[0014] Description of the Reference Numerals:

[0015] 1. Frame; 11. Base; 12. First mounting bracket; 13. Second mounting bracket; 14. Third mounting bracket;

[0016] 15. Fourth mounting bracket; 2. Unwinding mechanism; 21. First unwinding roller; 22. First guide roller; 23. First brake disc; 24. First fixing block; 25. First screw; 26. First spring; 27. First belt; 3. Coating mechanism; 31. Adjusting swing arm; 32. Coating bottom roller; 33. Coating pressure roller; 34. Thickness gauge; 35. Adjusting bolt; 36. Coating pallet; 37. Second guide roller; 38. Third guide roller; 4. Film laminating mechanism; 41. Second unwinding roller; 42. Fourth guide roller; 43. Film laminating pressure roller; 44. Second brake disc; 45. Second fixing block; 46. Second screw; 47. Second spring; 48. Second belt; 5. Winding mechanism; 51. Winding roller; 52. Rotating motor; 53. First synchronous gear; 54. Second synchronous gear; 55. Timing belt. Detailed Embodiment

[0017] The present utility model will be further described below with reference to the accompanying drawings:

[0018] As shown Figures 1 to 3 in the figure, a laboratory coater includes a frame 1, an unwinding mechanism 2, a coating mechanism 3, a film laminating mechanism 4, and a winding mechanism 5. The frame 1 includes a base 11 and a first mounting frame 12, a second mounting frame 13, a third mounting frame 14, and a fourth mounting frame 15 that are successively fixed above the base 11 from left to right. The unwinding mechanism 2, the coating mechanism 3, the film laminating mechanism 4, and the winding mechanism 5 are respectively fixed to the first mounting frame 12, the second mounting frame 13, the third mounting frame 14, and the fourth mounting frame 15;

[0019] The coating mechanism 3 includes an adjusting swing arm 31, a coating bottom roller 32, a coating pressure roller 33, a thickness gauge 34, an adjusting bolt 35, a paint support plate 36, a second guide roller 37, and a third guide roller 38. There are two groups of the second mounting frames 13, which are respectively fixed on the front and back sides of the base 11. The left end of the adjusting swing arm 31 is rotatably mounted on the second mounting frame 13. There are two groups of the adjusting swing arms 31, which respectively correspond to the two groups of the second mounting frames 13. The thickness gauge 34 is fixed to the right end of the adjusting swing arm 31 and its lower end contacts the second mounting frame 13. The adjusting bolt 35 is threadedly connected to the right end of the adjusting swing arm 31 and its lower end contacts the second mounting frame 13. The coating bottom roller 32 is rotatably mounted on the second mounting frame 13. The coating pressure roller 33 is rotatably mounted on the adjusting swing arm 31 and corresponds to the upper side of the coating bottom roller 32. The paint support plate 36 is fixed to the second mounting frame 13. The right end of the paint support plate 36 is inclined downward and corresponds to the left side of the coating bottom roller 32. The second guide roller 37 and the third guide roller 38 are both rotatably mounted on the second mounting frame 13. The second guide roller 37 corresponds to the lower side of the coating bottom roller 32, and the third guide roller 38 corresponds to the right side of the coating bottom roller 32.

[0020] The unwinding mechanism 2 is used to place the non-woven fabric roll and unwind it under the traction of the winding mechanism 5. The non-woven fabric successively passes through the coating mechanism 3, the film laminating mechanism 4, and the winding mechanism 5. The coating mechanism 3 coats the non-woven fabric with plaster. The film laminating mechanism 4 covers the release film on the plaster. Under the drive of the winding mechanism 5, the coated and film-laminated non-woven fabric is wound. When small-batch plaster coating tests are required, the prepared plaster is poured onto the paint support plate 36. The non-woven fabric bypasses the second guide roller 37 and then passes between the coating bottom roller 32 and the coating pressure roller 33. The plaster adheres to the non-woven fabric from the paint support plate 36. By rotating the adjusting bolt 35, the angle of the adjusting swing arm 31 can be adjusted. The adjustment amplitude can be understood from the reading on the thickness gauge 34, so as to adjust the gap between the coating bottom roller 32 and the coating pressure roller 33, and further adjust the thickness of the plaster coated on the non-woven fabric. After coating, it passes through the third guide roller 38 and continues to be conveyed to the subsequent process. The advantage of this design is that it can adapt to small-batch plaster coating tests, which is not only convenient to use, easy to clean, and flexible to adjust, but also can save labor costs and time costs.

[0021] The unwinding mechanism 2 includes a first unwinding roller 21, a first guiding roller 22, a first brake disc 23, a first fixing block 24, a first screw 25, a first spring 26 and a first belt 27. The first unwinding roller 21 and the first guiding roller 22 are rotatably mounted on the first mounting frame 12. The first unwinding roller 21 is located above the first guiding roller 22. The first brake disc 23 is fixed to one end of the first unwinding roller 21. Two groups of first fixing blocks 24 are provided and are respectively fixed to the left and right sides of the first mounting frame 12. The first screw 25 is threadedly connected to one group of first fixing blocks 24. The lower end of the first spring 26 is fixed to the upper end of the first screw 25. One end of the first belt 27 is fixed to the upper end of the first spring 26, and the other end of the first belt 27 is wound around the upper end of the first brake disc 23 and then fixed to the other group of first fixing blocks 24.

[0022] An unwoven fabric roll is mounted on the first unwinding roller 21. The unwoven fabric roll is wound around the first guiding roller 22 and then conveyed to the subsequent process under the traction of the winding mechanism 5. During unwinding, the rotation of the first unwinding roller 21 drives the rotation of the first brake disc 23. The first belt 27 exerts a certain resistance to the rotation of the first brake disc 23, avoiding the situation that the material roll still rotates for a certain distance under the inertia when the winding mechanism 5 stops driving. At the same time, it can also improve the rotation stability of the first unwinding roller 21. The resistance exerted by the first belt 27 on the first brake disc 23 is controllable. By rotating the first screw 25, the stretching length of the first spring 26 is adjusted, thereby adjusting the tightness of the first belt 27, and further adjusting the friction force of the first belt 27 on the first brake disc 23, that is, the resistance.

[0023] The film laminating mechanism 4 includes a second unwinding roller 41, a fourth guiding roller 42, a film laminating roller 43, a second brake disc 44, a second fixing block 45, a second screw 46, a second spring 47 and a second belt 48. The second unwinding roller 41, the fourth guiding roller 42 and the film laminating roller 43 are rotatably mounted on the third mounting frame 14. The second unwinding roller 41 is located above the fourth guiding roller 42. The film laminating roller 43 is located below the fourth guiding roller 42. Two groups of film laminating rollers 43 are arranged in the vertical direction. The second brake disc 44 is fixed to one end of the second unwinding roller 41. Two groups of second fixing blocks 45 are provided and are respectively fixed to the left and right sides of the third mounting frame 14. The second screw 46 is threadedly connected to one group of second fixing blocks 45. The lower end of the second spring 47 is fixed to the upper end of the second screw 46. One end of the second belt 48 is fixed to the upper end of the second spring 47, and the other end of the second belt 48 is wound around the upper end of the second brake disc 44 and then fixed to the other group of second fixing blocks 45.

[0024] An off - type film roll is installed on the second unwinding roller 41. The off - type film is wound around and passes through two groups of film - covering pressure rollers 43 after passing through the fourth guide roller 42, so that the off - type film covers the plaster, and is wound under the traction of the winding mechanism 5. When unwinding, the rotation of the second unwinding roller 41 drives the rotation of the second brake disc 44. The second belt 48 applies a certain resistance to the rotation of the second brake disc 44, avoiding the situation that the material roll still rotates for a certain distance under the action of inertia when the winding mechanism 5 stops driving. At the same time, it can also improve the rotation stability of the second unwinding roller 41. The resistance applied by the second belt 48 to the second brake disc 44 is controllable. By rotating the second screw rod 46, the stretching length of the second spring 47 is adjusted, thereby adjusting the tightness of the second belt 48, and further adjusting the friction force, that is, the resistance, of the second belt 48 on the second brake disc 44.

[0025] The winding mechanism 5 includes a winding roller 51, a rotating motor 52, a first synchronous gear 53, a second synchronous gear 54 and a synchronous belt 55. The winding roller 51 is rotatably installed on the fourth mounting frame 15. The rotating motor 52 is fixed on the fourth mounting frame 15. The first synchronous gear 53 is fixed at one end of the winding roller 51. The second synchronous gear 54 is fixed at the power output end of the rotating motor 52. The synchronous belt 55 is wound around the outer circumferences of the first synchronous gear 53 and the second synchronous gear 54, and the synchronous belt 55 is meshed with both the first synchronous gear 53 and the second synchronous gear 54.

[0026] The rotating motor 52 drives the second synchronous gear 54 to rotate, thereby driving the first synchronous gear 53 and the winding roller 51 to rotate through the synchronous belt 55, so as to drive the unwinding of the non - woven fabric roll and the off - type film roll and wind the non - woven fabric after film - covering.

[0027] The above does not impose any limitation on the technical scope of the present utility model. Any modification, equivalent change and modification made to the above - mentioned embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A laboratory coating machine, characterized in that: The machine comprises a frame, an unwinding mechanism, a coating mechanism, a laminating mechanism and a winding mechanism, wherein the frame comprises a base and a first mounting frame, a second mounting frame, a third mounting frame and a fourth mounting frame which are fixed on the base from left to right in sequence, and the unwinding mechanism, the coating mechanism, the laminating mechanism and the winding mechanism are respectively fixed to the first mounting frame, the second mounting frame, the third mounting frame and the fourth mounting frame; The coating mechanism includes an adjusting swing arm, a coating bottom roller, a coating pressure roller, a thickness gauge, an adjusting bolt, a coating support plate, a second guide roller and a third guide roller. The second mounting frame is provided with two groups and is respectively fixed on the front and rear sides of the base. The left end of the adjusting swing arm is rotatably mounted on the second mounting frame. The adjusting swing arm is provided with two groups and corresponds to the two groups of the second mounting frames respectively. The thickness gauge is fixed to the right end of the adjusting swing arm and the lower end contacts the second mounting frame. The adjusting bolt is threadedly connected to the right end of the adjusting swing arm and the lower end contacts the second mounting frame. The coating bottom roller is rotatably mounted on the second mounting frame. The coating pressure roller is rotatably mounted on the adjusting swing arm and corresponds to the top of the coating bottom roller. The coating support plate is fixed on the second mounting frame. The right end of the coating support plate is tilted downward and corresponds to the left side of the coating bottom roller. The second guide roller and the third guide roller are both rotatably mounted on the second mounting frame. The second guide roller corresponds to the bottom of the coating bottom roller, and the third guide roller corresponds to the right side of the coating bottom roller.

2. A laboratory coating machine according to claim 1, characterized in that: The unwinding mechanism includes a first unwinding roller, a first guide roller, a first brake disc, a first fixed block, a first screw, a first spring and a first belt. The first unwinding roller and the first guide roller are both rotatably mounted on the first mounting frame. The first unwinding roller corresponds to the top of the first guide roller. The first brake disc is fixed to one end of the first unwinding roller. Two groups of first fixed blocks are provided and are respectively fixed to the left and right sides of the first mounting frame. The first screw is threadedly connected to a group of the first fixed blocks. The lower end of the first spring is fixed to the upper end of the first screw. One end of the first belt is fixed to the upper end of the first spring. The other end of the first belt is fixed to the other group of the first fixed blocks after passing through the upper end of the first brake disc.

3. A laboratory coating machine according to claim 1, characterized in that: The coating mechanism includes a second unwinding roller, a fourth guide roller, a coating pressure roller, a second brake disc, a second fixed block, a second screw, a second spring and a second belt. The second unwinding roller, the fourth guide roller and the coating pressure roller are all rotatably mounted on the third mounting frame. The second unwinding roller corresponds to the upper side of the fourth guide roller, and the coating pressure roller corresponds to the lower side of the fourth guide roller. Two groups of coating pressure rollers are arranged in the vertical direction. The second brake disc is fixed to one end of the second unwinding roller. Two groups of second fixed blocks are arranged and are respectively fixed to the left and right sides of the third mounting frame. The second screw is threadedly connected to one group of the second fixed blocks. The lower end of the second spring is fixed to the upper end of the second screw. One end of the second belt is fixed to the upper end of the second spring. The other end of the second belt is fixed to the other group of the second fixed blocks after passing through the upper end of the second brake disc.

4. A laboratory coating machine according to claim 1, characterized in that: The winding mechanism includes a winding roller, a rotating motor, a first synchronous gear, a second synchronous gear and a synchronous belt. The winding roller is rotatably mounted on the fourth mounting frame. The rotating motor is fixed to the fourth mounting frame. The first synchronous gear is fixed to one end of the winding roller. The second synchronous gear is fixed to the power output end of the rotating motor. The synchronous belt is wound around the outer circumference of the first synchronous gear and the second synchronous gear. The synchronous belt is meshed with the first synchronous gear and the second synchronous gear.

Images