Split-type double-flow-casting head coating and casting equipment for MLCC (multilayer ceramic capacitor)

Abstract

The invention belongs to the technical field of coating and casting equipment, and discloses split type double-casting-head coating and casting equipment for MLCC, the split type double-casting-head coating and casting equipment comprises a first supporting plate and two casting heads stacked up and down, the top of the first supporting plate is fixedly connected with a fixing plate, a two-way threaded rod is rotatably connected between the first supporting plate and the fixing plate, and the two-way threaded rod is fixedly connected with the first supporting plate. A guide rod is fixedly connected between the first supporting plate and the fixing plate. According to the device, the two-way threaded rod is driven to rotate, so that the two threaded sleeves synchronously and reversely move along the two-way threaded rod correspondingly, the first connecting plate and the second connecting plate are driven to move through the threaded sleeves correspondingly, and the casting head is driven to move when the first connecting plate and the second connecting plate move; the casting heads can be supported through the first guide plate and the second guide plate, and the two casting heads can be adjusted according to the widths of two groups of base films when moving oppositely, so that the two groups of combined base films can be coated simultaneously, and meanwhile, the coating efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the field of coating and casting equipment, and more specifically, to a coating and casting equipment for MLCC split-type double casting heads. Background Art

[0002] In the manufacturing process of MLCC, tape casting is a key step. The tape casting process is to mix raw materials such as ceramic powder, solvent, adhesive and plasticizer evenly to form a ceramic slurry with a certain fluidity. Then, the ceramic slurry is evenly coated on a special base film through the tape casting head of the tape casting machine. After hot air drying, the solvent evaporates to form a ceramic diaphragm with a certain thickness, density and uniformity. The design of the tape casting head is crucial to the coating effect. During the coating process, the ceramic slurry flows out through the pouring port of the tape casting head and spreads evenly on the base film. At this time, the base film is driven by the tape casting machine to bypass, so that the ceramic slurry can be continuously and evenly coated on its surface.

[0003] The prior art casting machine is usually equipped with a single casting head. However, during the use of the single casting head, the width of the coated base film is greatly affected by the width of the casting head, and the convex efficiency of the casting head is relatively low. In order to solve the problem in practical applications, we propose a split dual casting head coating casting equipment for MLCC. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a split double casting head coating casting device for MLCC, which can be adjusted according to the width of two groups of base films, so that two groups of combined base films can be coated at the same time, and at the same time, the coating efficiency can be improved.

[0005] A split double casting head coating casting device for MLCC comprises a first support plate and two casting heads stacked up and down, wherein the top of the first support plate is fixedly connected to a fixed plate, a bidirectional threaded rod is rotatably connected between the first support plate and the fixed plate, a guide rod is fixedly connected between the first support plate and the fixed plate, both ends of the bidirectional threaded rod are threadedly connected to threaded sleeves, one of the threaded sleeves is fixedly connected to a first connecting plate on its outer wall, and the other threaded sleeve is fixedly connected to a second connecting plate on its outer wall, the first guide plate and the second guide plate are slidably connected to the outer wall of the guide rod, the first guide plate and the second guide plate are both provided with connecting holes on their outer walls, the ends of the bidirectional threaded rods pass through the connecting holes and extend to the outside thereof, the bottom of the casting head located below is fixedly connected to the first connecting plate and the first guide plate respectively, and the bottom of the casting head located above is fixedly connected to the second connecting plate and the second guide plate respectively.

[0006] Preferably, the outer wall of the first support plate is fixedly connected to a first machine base, the top of the first machine base is fixedly connected to a first stepper motor, and the output end of the first stepper motor is fixedly connected to the bidirectional threaded rod.

[0007] Preferably, it also includes a casting machine, which is fixedly connected to the first support plate, a hot air dryer is installed on the inner wall of the casting machine, a drying tunnel is installed on the top of the casting machine, and a plurality of feed rollers are installed on the inner wall of the drying tunnel, and the feed rollers can transport the base film horizontally.

[0008] Preferably, a discharge roller is installed on the inner wall of the casting machine, and the discharge roller is used to release the base film. The inner wall of the casting machine is installed with a guide wheel.

[0009] Preferably, a first conveying roller and a first pressing roller are installed on the inner wall of the casting machine, and the first conveying roller and the first pressing roller are used to clamp and convey the base film, and the first conveying roller and the first pressing roller are located above the guide wheel.

[0010] Preferably, a plurality of stretching rollers are installed on the outer wall of the first support plate, and the stretching rollers can spread the base film to form a vertically ascending conveying section.

[0011] Preferably, a second support plate is fixedly connected to the outer wall of the casting machine, and two winding rollers are installed on the outer wall of the second support plate, and the winding rollers are used to wind up the base film.

[0012] Preferably, a second conveying roller and a second pressing roller are installed on the outer wall of the second supporting plate, and the second conveying roller and the second pressing roller are used for clamping and conveying the base film.

[0013] Preferably, a guide roller and a positioning roller are installed on the outer wall of the second support plate, and the positioning roller is located directly above the winding roller. The base film passes between the second conveying roller and the second pressure roller, and passes under the guide roller and on top of the positioning roller to connect with the winding roller.

[0014] Preferably, two slide rails are fixedly connected to the top of the second support plate, a slide seat is fixedly connected to the top of the second support plate, the slide seat is located between the two slide rails, the inner wall of the slide seat is rotatably connected to a reciprocating screw, the outer wall of the reciprocating screw nut is fixedly connected to a slider, the top of the slider is fixedly connected to a support plate, both sides of the support plate are respectively fixedly connected to unloading forks, the bottom of the unloading forks are respectively fixedly connected to the sliding parts on the slide rails, the unloading fork is sleeved on the winding roller, the outer wall of the second support plate is fixedly connected to the second machine base, the outer wall of the second machine base is fixedly connected to the second stepping motor, and the output end of the second stepping motor is fixedly connected to the reciprocating screw.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The first stepper motor drives the bidirectional threaded rod to rotate, so that the two threaded sleeves move synchronously in opposite directions along the bidirectional threaded rod respectively, and the first connecting plate and the second connecting plate are driven to move respectively by the threaded sleeves. When the first connecting plate and the second connecting plate move, the casting head is driven to move respectively. The casting head can be supported by the first guide plate and the second guide plate. When the two casting heads move toward each other, they can be adjusted according to the width of the two groups of base films, so that the two groups of combined base films can be coated at the same time, and at the same time, the coating efficiency can be improved.

[0017] 2. The first stepper motor drives the bidirectional threaded rod to rotate, so that the two threaded sleeves move synchronously in opposite directions along the bidirectional threaded rod respectively, and the first connecting plate and the second connecting plate are driven to move respectively by the threaded sleeves. When the first connecting plate and the second connecting plate move, they drive the casting head to move respectively, and the first guide plate and the second guide plate are driven to move respectively by the casting head. The casting head can be supported by the first guide plate and the second guide plate, thereby improving the stability of the casting head when it moves.

[0018] 3. After winding is completed, the second stepper motor drives the reciprocating screw to rotate. At this time, the slider can drive the support plate to move, and the support plate drives the two unloading forks to move, so that the unloading fork drives the sliding part on the top of the slide rail to move. The reel for winding the base film on the winding roller is pushed out through the movement of the unloading fork, which is convenient for quick unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the installation structure of the fixing plate of the present invention;

[0023] Figure 4 It is a schematic diagram of the installation structure of the bidirectional threaded rod of the present invention;

[0024] Figure 5 This is a schematic diagram of the installation structure of the unloading fork of the present invention;

[0025] Figure 6 It is a schematic diagram of the installation structure of the support plate of the present invention.

[0026] Explanation of the numbers in the figure: 1. Casting machine; 2. Hot air drying machine; 3. Drying tunnel; 4. Feeding roller; 5. Unloading roller; 6. Guide wheel; 7. First conveying roller; 8. First pressure roller; 9. First support plate; 10. Stretching roller; 11. Second support plate; 12. Winding roller; 13. Guide roller; 14. Positioning roller; 15. Second conveying roller; 16. Second pressure roller; 17. First machine base; 18. First stepper motor; 19. Bidirectional threaded rod; 20. Guide rod; 21. Threaded sleeve; 22. First connecting plate; 23. Second connecting plate; 24. First guide plate; 25. Second guide plate; 26. Connecting hole; 27. Casting head; 28. Fixed plate; 29. ​​Second machine base; 30. Second stepper motor; 31. Sliding seat; 32. Sliding block; 33. Reciprocating screw rod; 34. Support plate; 35. Slide rail; 36. Unloading fork. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the implementation mode of the present application clearer, the technical solution in the implementation mode of the present application will be clearly and completely described in combination with the drawings in the implementation mode of the present application. Obviously, the described implementation mode is a part of the implementation mode of the present application, not all the implementation modes. Based on the implementation mode in the present application, all other implementation modes obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application. The specific implementation modes of the present invention are described in detail in combination with the drawings in the specification.

[0028] like Figure 3 and Figure 4 As shown, a coating casting device for MLCC split double casting heads includes a first support plate 9 and two casting heads 27 stacked up and down, a fixed plate 28 is fixedly connected to the top of the first support plate 9, a bidirectional threaded rod 19 is rotatably connected between the first support plate 9 and the fixed plate 28, a guide rod 20 is fixedly connected between the first support plate 9 and the fixed plate 28, both ends of the bidirectional threaded rod 19 are threadedly connected to threaded sleeves 21, one threaded sleeve 21 is fixedly connected to the outer wall of a first connecting plate 22, and the other threaded sleeve 21 is fixedly connected to the outer wall of the second connecting plate 23, the outer wall of the guide rod 20 is slidably connected to the first guide plate 24 and the second guide plate 25, the outer walls of the first guide plate 24 and the second guide plate 25 are both provided with connecting holes 26, the ends of the bidirectional threaded rod 19 pass through the connecting holes 26 and extend to the outside thereof, the bottom of the casting head 27 located below is respectively fixedly connected to the first connecting plate 22 and the first guide plate 24, and the bottom of the casting head 27 located above is respectively fixedly connected to the second connecting plate 23 and the second guide plate 25.

[0029] In the above structure, by driving the bidirectional threaded rod 19 to rotate, the two threaded sleeves 21 are respectively moved synchronously in opposite directions along the bidirectional threaded rod 19, and the first connecting plate 22 and the second connecting plate 23 are respectively driven to move by the threaded sleeves 21. When the first connecting plate 22 and the second connecting plate 23 move, they respectively drive the casting head 27 to move. The casting head 27 can be supported by the first guide plate 24 and the second guide plate 25. When the two casting heads 27 move toward each other, they can be adjusted according to the width of the two groups of base films, so that the two groups of combined base films can be coated at the same time, and at the same time, the coating efficiency can be improved.

[0030] like Figure 4 As shown, the outer wall of the first support plate 9 is fixedly connected to a first machine base 17 , the top of the first machine base 17 is fixedly connected to a first stepper motor 18 , and the output end of the first stepper motor 18 is fixedly connected to a bidirectional threaded rod 19 .

[0031] In the above structure, the first stepper motor 18 drives the bidirectional threaded rod 19 to rotate.

[0032] like Figure 1 and Figure 2 As shown, it also includes a casting machine 1, which is fixedly connected to the first support plate 9. A hot air dryer 2 is installed on the inner wall of the casting machine 1. A drying tunnel 3 is installed on the top of the casting machine 1. A plurality of feeding rollers 4 are installed on the inner wall of the drying tunnel 3. The feeding rollers 4 can transport the base film horizontally.

[0033] In the above structure, after the base film is convex, it enters the drying tunnel 3, and the hot air is transported to the drying tunnel 3 by the hot air dryer 2, and the base film is dried by the hot air.

[0034] like Figure 2 As shown, a discharge roller 5 is installed on the inner wall of the casting machine 1, and the discharge roller 5 is used to release the base film. A guide wheel 6 is installed on the inner wall of the casting machine 1.

[0035] In the above structure, the unwinding roller 5 releases the base film, and the base film passes under the guide wheel 6 .

[0036] like Figure 2 As shown, a first conveying roller 7 and a first pressing roller 8 are installed on the inner wall of the casting machine 1 . The first conveying roller 7 and the first pressing roller 8 are used to clamp and convey the base film. The first conveying roller 7 and the first pressing roller 8 are located above the guide wheel 6 .

[0037] In the above structure, the base film passes between the first conveying roller 7 and the first pressing roller 8, and the base film is clamped and conveyed by the first conveying roller 7 and the first pressing roller 8.

[0038] like Figure 2 As shown, a plurality of stretching rollers 10 are installed on the outer wall of the first supporting plate 9, and the stretching rollers 10 can spread the base film to form a vertical ascending conveying section.

[0039] In the above structure, the base film passes through multiple stretching rollers 10, and the base film is transported by the stretching rollers 10, so that the base film forms a vertical transport part, which facilitates the output ends of the two casting heads 27 to contact with the base film, providing space for the installation of the two casting heads 27.

[0040] like Figure 2 As shown, a second support plate 11 is fixedly connected to the outer wall of the casting machine 1, and two winding rollers 12 are installed on the outer wall of the second support plate 11. The winding rollers 12 are used to wind up the base film.

[0041] In the above structure, two groups of base films are respectively wound on two winding rollers 12, so as to wind up the dried base films.

[0042] like Figure 2 As shown, the second conveying roller 15 and the second pressing roller 16 are installed on the outer wall of the second supporting plate 11, and the second conveying roller 15 and the second pressing roller 16 are used to clamp and convey the base film.

[0043] In the above structure, the dried base film passes between the second conveying roller 15 and the second pressing roller 16 , and the base film is conveyed by the second conveying roller 15 and the second pressing roller 16 .

[0044] like Figure 2 As shown, a guide roller 13 and a positioning roller 14 are installed on the outer wall of the second support plate 11. The positioning roller 14 is located directly above the winding roller 12. The base film passes between the second conveying roller 15 and the second pressing roller 16, and passes under the guide roller 13 and the top of the positioning roller 14 to connect with the winding roller 12.

[0045] In the above structure, the base film passes through the guide roller 13 and then passes through the positioning roller 14 for transportation.

[0046] like Figure 5 and Figure 6 As shown, two slide rails 35 are fixedly connected to the top of the second support plate 11, and a slide seat 31 is fixedly connected to the top of the second support plate 11. The slide seat 31 is located between the two slide rails 35. The inner wall of the slide seat 31 is rotatably connected to a reciprocating screw rod 33, and the outer wall of the nut of the reciprocating screw rod 33 is fixedly connected to a slider 32. The top of the slider 32 is fixedly connected to a support plate 34, and both sides of the support plate 34 are respectively fixedly connected to unloading forks 36. The bottoms of the unloading forks 36 are respectively fixedly connected to the sliding parts on the slide rails 35, and the unloading forks 36 are sleeved on the winding roller 12. The outer wall of the second support plate 11 is fixedly connected to a second machine base 29, and the outer wall of the second machine base 29 is fixedly connected to a second stepping motor 30, and the output end of the second stepping motor 30 is fixedly connected to the reciprocating screw rod 33.

[0047] In the above structure, after winding is completed, the second stepper motor 30 drives the reciprocating screw 33 to rotate. At this time, the slider 32 can drive the support plate 34 to move, and the two unloading forks 36 are driven to move through the support plate 34, so that the unloading fork 36 drives the sliding part at the top of the slide rail 35 to move, and the reel for winding the base film on the winding roller 12 is pushed out through the movement of the unloading fork 36, which is convenient for quick unloading.

[0048] Working principle: the discharge roller 5 releases the base film, the base film passes under the guide wheel 6, passes between the first conveying roller 7 and the first pressing roller 8, the base film is clamped and conveyed by the first conveying roller 7 and the first pressing roller 8, the base film passes through a plurality of stretching rollers 10, and the base film is conveyed by the stretching rollers 10, so that the base film forms a vertical conveying part, and the output ends of the two casting heads 27 are in contact with the outer wall of the base film respectively;

[0049] The first stepper motor 18 drives the bidirectional threaded rod 19 to rotate, so that the two threaded sleeves 21 move synchronously in opposite directions along the bidirectional threaded rod 19, and the threaded sleeves 21 drive the first connecting plate 22 and the second connecting plate 23 to move respectively. When the first connecting plate 22 and the second connecting plate 23 move, they drive the casting head 27 to move respectively. The casting head 27 drives the first guide plate 24 and the second guide plate 25 to move respectively. The casting head 27 can be supported by the first guide plate 24 and the second guide plate 25, thereby improving the stability of the casting head 27 when it moves.

[0050] When the two casting heads 27 move toward each other, they can be adjusted according to the width of the two groups of base films, so that the two groups of combined base films can be coated at the same time, and at the same time, the coating efficiency can be improved;

[0051] After the base film is convex, it enters the drying tunnel 3, and the hot air is transported to the drying tunnel 3 by the hot air dryer 2, and the base film is dried by the hot air;

[0052] The dried base film passes between the second conveying roller 15 and the second pressing roller 16, and is conveyed by the second conveying roller 15 and the second pressing roller 16. After the base film passes through the guide roller 13, it is conveyed by the positioning roller 14, and the two groups of base films are respectively wound on the two winding rollers 12, so as to reel up the dried base film.

[0053] After winding is completed, the second stepper motor 30 drives the reciprocating screw 33 to rotate. At this time, the slider 32 can drive the support plate 34 to move, and the two unloading forks 36 are driven to move through the support plate 34, so that the unloading fork 36 drives the sliding part at the top of the slide rail 35 to move, and the reel for winding the base film on the winding roller 12 is pushed out through the movement of the unloading fork 36, which is convenient for quick unloading.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A split double casting head coating and casting device for MLCC, comprising a first support plate (9) and two casting heads (27) stacked up and down, characterized in that: A fixing plate (28) is fixedly connected to the top of the first support plate (9), a bidirectional threaded rod (19) is rotatably connected between the first support plate (9) and the fixing plate (28), a guide rod (20) is fixedly connected between the first support plate (9) and the fixing plate (28), both ends of the bidirectional threaded rod (19) are threadedly connected to threaded sleeves (21), one of the threaded sleeves (21) is fixedly connected to the outer wall of a first connecting plate (22), and the other threaded sleeve (21) is fixedly connected to the outer wall of a second connecting plate (23), The outer wall of the guide rod (20) is slidably connected with a first guide plate (24) and a second guide plate (25); the outer walls of the first guide plate (24) and the second guide plate (25) are both provided with connection holes (26); the end of the bidirectional threaded rod (19) passes through the connection hole (26) and extends to the outside thereof; the bottom of the casting head (27) located below is respectively fixedly connected to the first connecting plate (22) and the first guide plate (24); the bottom of the casting head (27) located above is respectively fixedly connected to the second connecting plate (23) and the second guide plate (25).

2. The MLCC split double casting head coating and casting equipment according to claim 1, characterized in that: The outer wall of the first support plate (9) is fixedly connected to a first machine base (17), the top of the first machine base (17) is fixedly connected to a first stepper motor (18), and the output end of the first stepper motor (18) is fixedly connected to a bidirectional threaded rod (19).

3. The MLCC split double casting head coating and casting equipment according to claim 2, characterized in that: It also includes a casting machine (1), the casting machine (1) is fixedly connected to the first support plate (9), a hot air drying machine (2) is installed on the inner wall of the casting machine (1), a drying tunnel (3) is installed on the top of the casting machine (1), and a plurality of feeding rollers (4) are installed on the inner wall of the drying tunnel (3), and the feeding rollers (4) can transport the base film horizontally.

4. The MLCC split double casting head coating and casting equipment according to claim 3, characterized in that: The inner wall of the casting machine (1) is provided with a discharge roller (5), and the discharge roller (5) is used to release the base film. The inner wall of the casting machine (1) is provided with a guide wheel (6).

5. The MLCC split double casting head coating and casting equipment according to claim 4, characterized in that: The inner wall of the casting machine (1) is installed with a first conveying roller (7) and a first pressing roller (8), and the first conveying roller (7) and the first pressing roller (8) are used to clamp and convey the base film, and the first conveying roller (7) and the first pressing roller (8) are located above the guide wheel (6).

6. The MLCC split double casting head coating and casting device according to claim 5, characterized in that: A plurality of stretching rollers (10) are installed on the outer wall of the first support plate (9), and the stretching rollers (10) are capable of spreading the base film to form a vertically ascending conveying section.

7. The MLCC split double casting head coating and casting device according to claim 6, characterized in that: The outer wall of the casting machine (1) is fixedly connected to a second support plate (11), and the outer wall of the second support plate (11) is equipped with two winding rollers (12), and the winding rollers (12) are used to wind up the base film.

8. The MLCC split double casting head coating and casting equipment according to claim 7, characterized in that: A second conveying roller (15) and a second pressing roller (16) are installed on the outer wall of the second support plate (11), and the second conveying roller (15) and the second pressing roller (16) are used to clamp and convey the base film.

9. The MLCC split double casting head coating and casting device according to claim 8, characterized in that: The outer wall of the second support plate (11) is equipped with a guide roller (13) and a positioning roller (14), and the positioning roller (14) is located directly above the winding roller (12). The base film passes between the second conveying roller (15) and the second pressing roller (16), and passes under the guide roller (13) and on top of the positioning roller (14) to be connected to the winding roller (12).

10. The MLCC split double casting head coating and casting device according to claim 9, characterized in that: The top of the second support plate (11) is fixedly connected to two slide rails (35), the top of the second support plate (11) is fixedly connected to a slide seat (31), the slide seat (31) is located between the two slide rails (35), the inner wall of the slide seat (31) is rotatably connected to a reciprocating screw rod (33), the outer wall of the nut of the reciprocating screw rod (33) is fixedly connected to a slider (32), the top of the slider (32) is fixedly connected to a support plate (34), both sides of the support plate (34) are respectively fixedly connected to unloading forks (36), the bottom of the unloading forks (36) are respectively fixedly connected to the sliding parts on the slide rails (35), the unloading forks (36) are sleeved on the winding roller (12), the outer wall of the second support plate (11) is fixedly connected to a second machine base (29), the outer wall of the second machine base (29) is fixedly connected to a second stepping motor (30), and the output end of the second stepping motor (30) is fixedly connected to the reciprocating screw rod (33).

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