Gradient composite coating die head

By designing a gradient composite coating die head, and using the split insert to separate the two raw material flow channels A and B in the buffer groove, the A-A/B gradient superimposed-B coating is extruded in one die head, solving the product problem that is difficult to achieve this structure in the prior art.

CN119525097APending Publication Date: 2025-02-28ZHEJIANG JINGCHENG MOLD MASCH CO LTD
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Patent Information

Application Number
CN202411977165.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-02-28

AI Technical Summary

Technical Problem

It is difficult to independently complete the coating of A and B in one die, extruding A and B raw materials into A-A/B gradient superimposing-B type coating.

Method used

A gradient composite coating die head is designed, including an upper die, a gasket and a lower die, which is connected into one by a mold locking screw. The feed channels of A and B materials are provided on the left and right sides of the lower die, and a split insert is provided in the buffer groove. The split insert is in a gentle rising structure from the right to the left, forming an upper B material flow channel and a lower A material flow channel to ensure that the two raw materials form an upper B and lower A superposition structure in the extrusion channel.

Benefits of technology

It is realized that the coating of A and B two raw materials are extruded into A-A/B gradient superimposed on B types is independently completed in one die, ensuring that the coating is evenly extruded forward in different width directions, and a die lip gap fine-tuning mechanism is installed.

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Abstract

The invention provides a gradient composite coating die head which comprises an upper die, a gasket, a lower die and an extrusion channel, an A material feeding channel is formed in the left side area of the lower die, a B material feeding channel is formed in the right side area of the lower die, a buffer groove is formed in the front area of the top face of the lower die, and a flow dividing insert for separating the buffer groove left and right is arranged in the middle of the buffer groove. The shunting insert comprises a left-section sealing part, a middle-section shunting part and a right-section sealing part, the shunting insert is of a gently rising structure from right to left, an upper-layer B material runner is formed in a gap area between the top surface of the middle-section shunting part and the bottom surface of the upper die, and a lower-layer A material runner is formed in a gap area between the bottom surface of the middle-section shunting part and the bottom surface of the buffer groove; and the upper-layer B material runner and the lower-layer A material runner forwards enter the front extrusion channel to form a coating with an upper-layer B and lower-layer A superposed structure. According to the invention, two raw materials A and B are independently extruded in one die head to form an A-A / B gradient superposition-B type coating.
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Description

Technical Field

[0001] The invention relates to the technical field of coating die heads, in particular to a gradual composite coating die head. Background Art

[0002] The coating die is a precision device that controls and distributes the slurry evenly on the surface of the substrate. Some special products require that two coatings of different properties, A and B, are partially superimposed on each other to form a gradient coating of A-A / B gradient superposition-B. Products with this structure have never appeared before. Summary of the invention

[0003] In view of the above problems, the present invention aims to provide a gradient composite coating die head, which can independently extrude two raw materials A and B into A-A / B gradient superposition-B type coating in one die head.

[0004] The technical solution of the present invention is a gradually changing composite coating die head, comprising an upper die, a gasket and a lower die, the three of which are connected as a whole by a locking screw, an extrusion channel is arranged between the front ends of the upper die and the lower die, the height of the extrusion channel corresponds to the thickness of the gasket, the left area of ​​the lower die is arranged with an A material feed channel, the right area of ​​the lower die is arranged with a B material feed channel, a buffer groove is arranged in the front area of ​​the top surface of the lower die along the width direction, the bottom of the buffer groove is respectively connected with the A material feed channel and the B material feed channel, a diverter insert is arranged in the middle of the buffer groove to separate the buffer groove to the left and right, the diverter insert comprises a left section sealing part, a middle section diverter part and a right section sealing part, and the diverter insert is arranged from right to left The direction is a gently rising structure, the right section sealing part contacts the bottom of the buffer groove to achieve lower end sealing, the left section sealing part contacts the bottom surface of the upper mold to achieve upper end sealing, the gap area between the top surface of the middle section diverter part and the bottom surface of the upper mold forms an upper layer B material flow channel, the gap area between the bottom surface of the middle section diverter part and the bottom surface of the buffer groove forms a lower layer A material flow channel, the upper layer B material flow channel and the lower layer A material flow channel enter the front extrusion channel to form a coating with an upper layer B and a lower layer A superimposed structure, the extrusion channel in front of the right side area of ​​the diverter insert extrude B raw material, and the extrusion channel in front of the left side area of ​​the diverter insert extrude A raw material, and finally the extrusion channel extrude a B-type coating in the form of an A-A / B gradient superposition along the width direction.

[0005] Preferably, a drainage groove is provided on the top surface of the lower mold on the rear side of the diversion insert, the right end of the drainage groove is connected to the upper area of ​​the right end of the middle diversion part, and the left end of the drainage groove is connected to the top area of ​​the left end of the middle diversion part; a flow regulating valve stem is arranged in the drainage groove, and the flow regulating valve stem is threadedly connected to the threaded hole of the upper mold, and the bottom cross-sectional shape of the flow regulating valve stem corresponds to the cross-sectional shape of the drainage groove, the top end of the flow regulating valve stem extends out of the upper mold and a clamping part for a wrench to be clamped is arranged at the end, and the clamping part is twisted to realize the lifting and lowering of the bottom of the flow regulating valve stem in the drainage groove to control the flow of raw material B in the drainage groove.

[0006] Preferably, a deformation groove and a mounting hole are provided at the front end of the upper die, and a push-pull rod fine-tuning structure is provided in the mounting hole to adjust the front end gap of the extrusion channel.

[0007] Preferably, the front end of the upper die is provided with exhaust holes at positions above the left and right end heads of the buffer groove.

[0008] Preferably, the rear side surfaces of the upper mold and the lower mold are provided with locking modules that connect the two into one, and an adjusting gasket is provided between the locking module and the upper mold to adjust the distance that the upper mold extends forward; an adjusting gasket is provided between the locking module and the lower mold to adjust the distance that the lower mold extends forward.

[0009] Preferably, the rear side surface of the upper mold is connected to an upper hinge seat, the rear side surface of the lower mold is connected to a lower hinge seat, the upper hinge seat and the lower hinge seat are connected via a hinge shaft, and the top surface of the upper hinge seat is connected to a long rod wrench.

[0010] Preferably, the upper articulated seat, the lower articulated seat and the long rod wrench form an articulated seat group, and the number of the articulated seat groups is two, which are respectively located in the left and right side areas of the rear side of the upper mold.

[0011] The present invention realizes the independent completion of extruding two raw materials A and B into A-A / B gradual superposition-B type coating in one die head, can ensure the coating to be uniformly extruded forward at different width direction positions, and is equipped with a die lip gap fine-tuning mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of another perspective of the present invention; Figure 3 An exploded view of the present invention; Figure 4 A top view of the present invention; Figure 5 for Figure 4 Cross-sectional view along AA direction; Figure 6 for Figure 4 Cross-sectional view along direction BB; Figure 7 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 8 It is a structural schematic diagram of the lower die, the flow dividing insert, and the flow regulating valve stem in the present invention; Among them: 1—upper die; 101—deformation groove; 102—mounting hole; 103—exhaust hole; 2—gasket; 3—lower die; 31—A material feeding channel; 32—B material feeding channel; 33—buffer groove; 34—drainage groove; 4—locking screw; 5—extrusion channel; 6—diverter insert; 61—left section sealing part; 62—middle section diverter part; 63—right section sealing part; 7—upper layer B material flow channel; 8—lower layer A material flow channel; 9—flow regulating valve stem; 91—clamping part; 10—push-pull rod fine-tuning structure; 11—locking module; 12—upper hinge seat; 13—lower hinge seat; 14—long rod wrench. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0014] like Figures 1 to 8 As shown, the present invention provides a gradual composite coating die head, including an upper die 1, a gasket 2 and a lower die 3, which are connected as a whole by a locking screw 4, an extrusion channel 5 is arranged between the front ends of the upper die 1 and the lower die 3, and the height of the extrusion channel 5 corresponds to the thickness of the gasket 2, the left area of ​​the lower die 3 is provided with an A material feeding channel 31, the right area of ​​the lower die 3 is provided with a B material feeding channel 32, and a buffer groove 33 is arranged in the front area of ​​the top surface of the lower die 3 along the width direction, and the bottom of the buffer groove 33 is respectively connected with the A material feeding channel 31 and the B material feeding channel 32, and a diverter insert 6 is arranged in the middle of the buffer groove 33 to separate the buffer groove 33 from the left and right, and the diverter insert 6 includes a left section sealing part 61, a middle section diverter part 62 and a right section sealing part 63, and the diverter insert 6 It presents a gently rising structure from right to left, the right section sealing part 63 contacts the bottom of the buffer groove 33 to achieve lower end sealing, the left section sealing part 61 contacts the bottom surface of the upper mold 1 to achieve upper end sealing, the gap area between the top surface of the middle section diverter part 62 and the bottom surface of the upper mold 1 forms an upper layer B material flow channel 7, the gap area between the bottom surface of the middle section diverter part 62 and the bottom surface of the buffer groove 33 forms a lower layer A material flow channel 8, the upper layer B material flow channel 7 and the lower layer A material flow channel 8 enter the front extrusion channel 5 to form a coating with an upper layer B and a lower layer A inclined gradually superimposed structure, the extrusion channel 5 in front of the right side area of ​​the diverter insert 6 extrude B raw material, the extrusion channel 5 in front of the left side area of ​​the diverter insert 6 extrude A raw material, and finally the extrusion channel 5 extrude a B type coating in the A-A / B gradually superimposed along the width direction.

[0015] On the basis of the above scheme, a drainage groove 34 is opened on the top surface of the lower mold 3 on the rear side of the diverter insert 6, and the right end of the drainage groove 34 is connected to the upper area of ​​the right end of the middle diverter part 62, and the left end of the drainage groove 34 is connected to the top area of ​​the left end of the middle diverter part 62; a flow regulating valve stem 9 is arranged in the drainage groove 34, and the flow regulating valve stem 9 is threadedly connected to the threaded hole of the upper mold 1, and the bottom cross-sectional shape of the flow regulating valve stem 9 corresponds to the cross-sectional shape of the drainage groove 34, and the top end of the flow regulating valve stem 9 extends out of the upper mold 1 and a clamping portion 91 for a wrench to be clamped is arranged at the end. The clamping portion 91 is twisted to realize the lifting and lowering of the bottom of the flow regulating valve stem 9 in the drainage groove 34 to control the flow of raw material B in the drainage groove 34.

[0016] In addition, a deformation groove 101 and a mounting hole 102 are provided at the front end of the upper mold 1 , and a push-pull rod fine-tuning structure 10 is provided in the mounting hole 102 to adjust the front end gap of the extrusion channel 5 .

[0017] In addition, exhaust holes 103 are provided at the front end of the upper mold 1 above the left and right ends of the buffer groove 33 .

[0018] Specifically, a locking module 11 is provided on the rear side surface of the upper mold 1 and the rear side surface of the lower mold 3 to connect the two as a whole, and an adjusting gasket is provided between the locking module 11 and the upper mold 1 to adjust the distance that the upper mold 1 extends forward; an adjusting gasket is provided between the locking module 11 and the lower mold 3 to adjust the distance that the lower mold 3 extends forward.

[0019] Specifically, the rear side of the upper mold 1 is connected to an upper hinge seat 12, the rear side of the lower mold 3 is connected to a lower hinge seat 13, the upper hinge seat 12 and the lower hinge seat 13 are connected via a hinge shaft, and the top surface of the upper hinge seat 12 is connected to a long rod wrench 14.

[0020] Furthermore, the upper articulated seat 12 , the lower articulated seat 13 , and the long rod wrench 14 form an articulated seat group. There are two articulated seat groups, which are respectively located on the left and right side areas of the rear side of the upper mold 1 .

[0021] The working principle of the present invention is as follows: Raw material A enters from the A material feed channel 31 and reaches the left area of ​​the buffer tank 33, raw material B enters from the B material feed channel 32 and reaches the right area of ​​the buffer tank 33, the diverter insert 6 separates the above raw materials A and B, and at the same time, the lower part of the middle diverter 62 is filled with raw material A and extruded forward, and the upper part of the middle diverter 62 is filled with raw material B and extruded forward, and at the same time, raw material B reaches the top surface of the left side of the middle diverter 62 through the drainage groove 34, so that the raw material B above the middle diverter 62 can be fully filled, ensuring that the upper layer of the middle diverter 62 area is raw material B, and the lower layer is raw material A, forming upper and lower superimposed coatings of raw materials BA, and finally extrude A-A / B gradient superposition-B type coating forward in the width direction of the overall mold body through the extrusion channel 5.

[0022] The above description is only a preferred embodiment of the present invention and does not impose any form of limitation on the invention. Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A gradient composite coating die head, comprising an upper die (1), a gasket (2) and a lower die (3), the three being connected as a whole by a locking screw (4), an extrusion channel (5) being arranged between the front ends of the upper die (1) and the lower die (3), the height of the extrusion channel (5) corresponding to the thickness of the gasket (2), characterized in that: The left area of ​​the lower mold (3) is provided with an A material feed channel (31), the right area of ​​the lower mold (3) is provided with a B material feed channel (32), the front area of ​​the top surface of the lower mold (3) is provided with a buffer groove (33) along the width direction, the bottom of the buffer groove (33) is respectively connected with the A material feed channel (31) and the B material feed channel (32), the middle part of the buffer groove (33) is provided with a diverter insert (6) for dividing the buffer groove (33) to the left and right, the diverter insert (6) comprises a left section sealing part (61), a middle section diverter part (62) and a right section sealing part (63), the diverter insert (6) is in a gently rising structure from right to left, the right section sealing part (63) contacts the bottom of the buffer groove (33) to achieve lower end sealing, The left-section sealing portion (61) contacts the bottom surface of the upper mold (1) to achieve upper end sealing, the gap area between the top surface of the middle-section diverter portion (62) and the bottom surface of the upper mold (1) forms an upper-layer B material flow channel (7), and the gap area between the bottom surface of the middle-section diverter portion (62) and the bottom surface of the buffer groove (33) forms a lower-layer A material flow channel (8), the upper-layer B material flow channel (7) and the lower-layer A material flow channel (8) enter the front extrusion channel (5) to form a coating with an upper-layer B and lower-layer A superimposed structure, the extrusion channel (5) in front of the right side area of ​​the diverter insert (6) extrude B raw material, and the extrusion channel (5) in front of the left side area of ​​the diverter insert (6) extrude A raw material, and finally the extrusion channel (5) extrude an A-A / B gradient superimposed-B type coating along the width direction.

2. A gradual composite coating die head according to claim 1, characterized in that: A drainage groove (34) is provided on the top surface of the lower die (3) at the rear side of the diverter insert (6); the right end of the drainage groove (34) is connected to the upper area of ​​the right end of the middle diverter portion (62); and the left end of the drainage groove (34) is connected to the top area of ​​the left end of the middle diverter portion (62); a flow regulating valve stem (9) is provided in the drainage groove (34); the flow regulating valve stem (9) is threadedly connected to the threaded hole of the upper die (1); the bottom cross-sectional shape of the flow regulating valve stem (9) corresponds to the cross-sectional shape of the drainage groove (34); the top end of the flow regulating valve stem (9) extends out of the upper die (1) and a clamping portion (91) for a wrench to clamp is provided at the end; the clamping portion (91) is twisted to realize the bottom of the flow regulating valve stem (9) to rise and fall in the drainage groove (34) to control the flow of raw material B in the drainage groove (34).

3. The gradual composite coating die head according to claim 1, characterized in that: The front end of the upper die (1) is provided with a deformation groove (101) and a mounting hole (102), and a push-pull rod fine-tuning structure (10) is provided in the mounting hole (102) to adjust the front end clearance of the extrusion channel (5).

4. The gradual composite coating die head according to claim 1, characterized in that: The front end of the upper die (1) is provided with exhaust holes (103) at positions above the left and right ends of the buffer groove (33).

5. The gradual composite coating die head according to claim 1, characterized in that: The rear side surfaces of the upper mold (1) and the lower mold (3) are provided with a locking module (11) for connecting the two as a whole, and an adjusting gasket is provided between the locking module (11) and the upper mold (1); and an adjusting gasket is provided between the locking module (11) and the lower mold (3).

6. The gradual composite coating die head according to claim 1, characterized in that: The upper mold (1) is connected to an upper hinge seat (12) on its rear side, and the lower mold (3) is connected to a lower hinge seat (13) on its rear side. The upper hinge seat (12) and the lower hinge seat (13) are connected via a hinge shaft, and the top surface of the upper hinge seat (12) is connected to a long rod wrench (14).

7. The gradual composite coating die head according to claim 1, characterized in that: The upper hinge seat (12), the lower hinge seat (13) and the long rod wrench (14) form an hinge seat group. There are two hinge seat groups, which are respectively located on the left and right side areas of the rear side of the upper mold (1).