CN109759284B - Coating machine coating die head convenient for quick and accurate replacement of gasket - Google Patents
Coating machine coating die head convenient for quick and accurate replacement of gasket Download PDFInfo
- Publication number
- CN109759284B CN109759284B CN201910219110.XA CN201910219110A CN109759284B CN 109759284 B CN109759284 B CN 109759284B CN 201910219110 A CN201910219110 A CN 201910219110A CN 109759284 B CN109759284 B CN 109759284B
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- die
- coating
- mold
- disassembly
- locking mechanism
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- 239000011248 coating agent Substances 0.000 title claims abstract description 56
- 238000000576 coating method Methods 0.000 title claims abstract description 56
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000001125 extrusion Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 9
- 239000012530 fluid Substances 0.000 description 7
- 238000009826 distribution Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Abstract
The utility model relates to a coating die head of a coating machine, which is convenient for quick and accurate replacement of gaskets and improvement of coating precision, and comprises an upper die, a lower die and gaskets which are matched for use; the upper die comprises a reference die, a dismounting die and a locking mechanism, wherein the reference die is fixedly assembled at a designated reference position of the lower die, the locking mechanism is fixedly assembled on the reference die or the lower die, the dismounting die is fixedly pressed against the reference die through the locking mechanism, and the gasket fixing clamp is arranged between an upper lip of the dismounting die and a lower lip of the lower die. The upper die of the coating die head is of a split type structure, the reference die has an accurate reference positioning function, the disassembly die can be repeatedly, quickly and accurately aligned and installed through the locking operation of the locking mechanism, the installation accuracy of the disassembly die is high, the operation is quick, the replacement operation of the gasket of the coating die head is only required to be 15-30 min, and the installation efficiency is effectively improved by only five to six times of the disassembly time of the traditional integrated coating head.
Description
Technical Field
The utility model relates to the field of coating dies of extrusion coaters, in particular to a coating die of a coater, which is convenient for quick and accurate replacement of gaskets.
Background
The coating machine is widely applied to the industries of adhesive tapes, labels, medical treatment, electronics, photovoltaics, printing, textiles, leather and the like, and particularly the precision coating industries such as self-adhesive labels, medical adhesive tapes, films, lithium battery pole pieces, permeable films, optical films, high-performance composite materials and the like. As a core main part of the coating machine, a slit extrusion die, the general slurry is a non-Newtonian fluid in the use process. Because the slurry can not be rapidly and uniformly distributed in the trough after entering the trough under the action of the shearing force, the phenomenon that the middle of the coating is thick and the two sides are thin generally occurs; one of the solutions is to adjust the size of the lip gap and the lip sides of the upper and lower dies by a row of screw locking, which are precisely positioned on the same plane, so as to achieve the consistency of the coating film thickness as much as possible.
The upper die of most existing coating dies is of an integral structure, such as an extrusion die for coating disclosed in China patent application No. 201820227780.7, and a precise extrusion die of a coating machine disclosed in China patent application No. 201810937475.1. Because the different products of coating have the demand of different width, just need change the gasket in the coating die head, and then need pull down the cope mold, carry out the assembly operation of cope mold after required gasket installation again. Referring to fig. 3, in the prior art, 1 is mounted on a lower die 2 by locking a bolt, and since a certain gap (i.e. a non-perfect fit structure) exists between the external thread of the bolt and the internal thread of the mounting holes of the upper die 1 and the lower die 2 in the transverse direction (the direction perpendicular to the axial direction of the bolt), the fine adjustment and adjustment work of the upper die 1, which still takes a lot of time after locking the bolt, makes the lips of the upper die and the lower die tend to be on the same plane accurately. In actual production, the existing integral upper die 1 usually needs about 4 hours to perform one-time gasket 3 dismounting operation, the adjustment workload is huge, and the gasket 3 replacement efficiency is low.
Disclosure of Invention
The utility model provides a coating die head of a coating machine, which is convenient for rapid and accurate replacement of gaskets, so as to solve the problems of low gasket replacement efficiency and large assembly and adjustment workload of an existing integral upper die. The uniformity, adjustability and usability of fluid distribution are improved, and the coating precision is integrally improved.
The utility model adopts the following technical scheme:
a coating die head of a coating machine convenient for quick and accurate replacement of gaskets comprises an upper die, a lower die and gaskets which are matched for use; the upper die comprises a reference die, a dismounting die and a locking mechanism, wherein the reference die is fixedly assembled at a designated reference position of the lower die, the locking mechanism is fixedly assembled on the reference die or the lower die, the dismounting die is fixedly pressed against the reference die through the locking mechanism, and the gasket fixing clamp is arranged between an upper lip of the dismounting die and a lower lip of the lower die.
Further improved, the locking mechanism comprises a base and an adjusting bolt, wherein the base and the reference die are integrally formed or are locked into a whole through bolts, an included angle formed by the length extending direction of the adjusting bolt and the horizontal plane is a, an included angle formed by the length extending direction of the adjusting bolt and the horizontal plane is more than or equal to 15 degrees and less than 90 degrees, an adjusting end thread of the adjusting bolt is assembled on the base, and the extrusion end of the adjusting bolt extrudes the disassembling die towards the reference die.
Further improved, the locking mechanism further comprises an L-shaped bearing block, wherein the bearing block and the dismounting die are of an integrated structure or are locked into a whole through bolts, and the bearing block is provided with a vertically extending bearing surface; the extrusion end of the adjusting bolt extrudes the bearing surface.
Further improved, the extrusion end of the adjusting bolt is fixedly provided with a ball head, and the spherical surface of the ball head is connected with the bearing surface.
Further, an assembling channel is provided between the base and the disassembling die, which does not interfere with the disassembling and assembling movement of the disassembling die.
Further improved, the reference die and the lower die are fixedly connected into a whole through a plurality of bolts; the reference mould is provided with a plurality of locking mechanisms which are arranged in a straight line, and a plurality of locking mechanisms are used for cooperatively fixing the dismounting mould.
Further, a heating element is fixedly mounted on the reference mold.
Further improved, the lower die is provided with a coating runner, the coating runner comprises a main runner and a boost runner, the main runner is communicated with the boost runner, and a grouting inlet of the main runner is arranged on the side wall of the lower die. The main runner extends into the reference mold, the boosting runner extends into the dismounting mold, and the coating of the boosting runner is output to the gasket; the cross-sectional dimension of the primary flow passage is greater than the cross-sectional dimension of the boost flow passage.
As can be seen from the above description of the structure of the present utility model, compared with the prior art, the present utility model has the following advantages: the upper die of the coating die head is of a split type structure, the reference die has an accurate reference positioning function, the disassembly die can be repeatedly, quickly and accurately aligned and installed through the locking operation of the locking mechanism, after the locking bolt of the locking mechanism is locked through the torque wrench, the external thread of the locking bolt is in a tightly meshed connection state with the internal thread of the screw hole on the base in the axial direction, namely, once the locking standard is reached, the locking strokes of the extrusion ends of the plurality of adjusting bolts in the axial direction are the same, the position of the disassembly die is the set required installation position, calibration work is not needed, the installation accuracy of the disassembly die is high, the operation is quick, and the replacement operation of the gasket of the coating die head is only required to be 15-30 min, so that the installation efficiency is effectively improved. The split type template has a runner for secondary flow division and the property of timely adjusting a gap. In addition, the utility model ensures that the fluid is distributed again through the pressure boosting flow channel by the secondary pressure boosting of the pressure boosting flow channel, so that the fluid distribution is more uniform. In addition, the split type upper die design and the special locking mechanism enable the gap between the upper die and the lower die of the coating head to have certain toughness and adjustability, and common operators can completely and rapidly adjust according to the coating effect in the production process so as to achieve an ideal result.
Drawings
Fig. 1 is a schematic left-hand structural view of the coating die of the present utility model.
Fig. 2 is a schematic top view of the coating die of the present utility model.
Fig. 3 is a schematic left-hand structural view of a conventional coating die.
Detailed Description
Specific embodiments of the present utility model will be described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, a coating die head of a coating machine, which is convenient for quick and accurate replacement of a gasket 3, comprises an upper die 1, a lower die 2 and the gasket 3 which are matched. The upper die 1 comprises a reference die 11, a detaching die 12 and a locking mechanism 4, wherein a heating assembly 13 is fixedly arranged on the reference die 11 and is used for heating the coating die head. The reference mold 11 is fixedly mounted at a predetermined reference position of the lower mold 2, and preferably, the reference mold 11 and the lower mold 2 are integrally fastened by a plurality of bolts. The reference mold 11 is provided with a plurality of locking mechanisms 4 which are arranged in a straight line, the locking mechanisms 4 are fixedly arranged on the reference mold 11 or the lower mold 2, and all the locking mechanisms 4 cooperatively fix the dismounting mold 12. The disassembling die 12 is pressed against the reference die 11 by the locking mechanism 4, and the gasket 3 is fixedly clamped between the upper lip of the disassembling die 12 and the lower lip of the lower die 2.
With continued reference to fig. 1 and 2, the locking mechanism 4 includes a base 41 and an adjusting bolt 42, wherein the base 41 is integrally formed with the reference mold 11 or is locked by the bolt, and an assembling channel 40 is provided between the base 41 and the disassembling mold 12, which does not interfere with the lateral movement of the disassembling mold 12 during the disassembly. The length of the adjusting bolt 42 extends at an angle a to the horizontal of 15 DEG.ltoreq.a < 90 DEG, preferably 45 DEG or 60 deg. An adjustment end 421 of the adjustment bolt 42 is screw-fitted to the base 41, and the adjustment end 421 preferably penetrates the base 41 and extends to the upper surface of the base 41 as shown in fig. 1, so that the rotation adjustment operation of the adjustment bolt 42 by the torque wrench is facilitated. The pressing end 422 of the adjusting bolt 42 presses the dismounting die 12 toward the reference die 11. In addition, with continued reference to fig. 1, the locking mechanism 4 further includes an L-shaped receiving block 43, where the receiving block 43 is integrally formed with the disassembling die 12 or is locked by a bolt, and the receiving block 43 has a vertically extending receiving surface 430; the pressing end 422 of the adjusting bolt 42 presses the receiving surface 430. A ball 423 is fixedly disposed at an end of the pressing end 422 of the adjusting bolt 42, and a spherical surface of the ball 423 is connected to the receiving surface 430.
The upper die 1 of the coating die head is of a split type structure, the reference die 11 has an accurate reference positioning function, the dismounting die 12 can be repeatedly, quickly and accurately aligned and installed through the locking operation of the locking mechanism 4, after the locking bolt of the locking mechanism 4 is locked through the torque wrench, the external thread of the locking bolt is in a tightly meshed connection state with the internal thread of the screw hole on the base 41 in the axial direction, namely, once the locking standard is met, the axial locking strokes of the extrusion ends 422 of the plurality of adjusting bolts 42 are the same, at the moment, the position of the dismounting die 12 is the set required installation position, the calibration work is not needed, the installation accuracy of the dismounting die 12 is high, the operation is quick, and the gasket replacement operation of the coating die head is only required to be 15-30 min, so that the installation efficiency is effectively improved.
With continued reference to fig. 1, the lower die 2 is provided with a paint runner 20, and the paint runner 20 includes a main runner 202 and a booster runner 203 which are communicated with each other, and a grouting inlet 201 of the main runner 202 is provided on a rear side wall of the lower die 2. The main runner 202 extends into the reference mold 11, the pressure boosting runner 203 extends into the disassembly mold 12, gaps exist between the reference mold 11, the disassembly mold 12 and the lower mold 2 respectively, and the coating materials of the main runner 202 and the pressure boosting runner 203 flow to the gasket 3 respectively through the gaps; the cross-sectional dimension of the primary flow passage 202 is larger than the cross-sectional dimension of the boost flow passage 203; by the secondary pressure increase of the pressure increasing flow channel 203, the fluid is distributed again through the pressure increasing flow channel 203, so that the fluid distribution is more uniform. The existing coating head of the integral upper die generally has the problem of poor glue outlet uniformity, because the coating head is generally connected with 1-2 liquid inlets (namely the grouting inlets 201), and the coating head for uniformly distributing the fluid to the whole width is generally difficult to achieve.
In addition, as most of the coating heads are made of die steel, deformation is unavoidable in the use process, especially in the heating use process, and is often the most critical factor affecting the coating quality. The adjustment of the previous integral coating head often needs a master with very high experience to complete, and even needs to be sent back to the manufacturer for recalibration.
The foregoing is merely illustrative of specific embodiments of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial modification of the present utility model by using the design concept shall fall within the scope of the present utility model.
Claims (3)
1. The coating die head of the coating machine, which is convenient for quick and accurate replacement of the gasket, comprises an upper die, a lower die and the gasket which are matched for use; the method is characterized in that: the upper die comprises a reference die, a dismounting die and a locking mechanism, wherein the reference die is fixedly assembled at a designated reference position of the lower die, the locking mechanism is fixedly assembled on the reference die or the lower die, the dismounting die is fixedly pressed against the reference die through the locking mechanism, and the gasket fixing clamp is arranged between the dismounting die and the lower die; the locking mechanism comprises a base and an adjusting bolt, wherein the base and the reference die are integrally structured or are locked into a whole through the bolt, an included angle formed by the length extending direction of the adjusting bolt and a horizontal plane is a, an included angle is more than or equal to 15 degrees and less than 90 degrees, an adjusting end thread of the adjusting bolt is assembled on the base, and an extrusion end of the adjusting bolt extrudes the disassembly die towards the reference die; the locking mechanism also comprises an L-shaped bearing block, wherein the bearing block and the disassembly die are of an integrated structure or are locked into a whole through bolts, and the bearing block is provided with a vertically extending bearing surface; the extrusion end of the adjusting bolt extrudes the bearing surface, a ball head is fixedly arranged at the extrusion end of the adjusting bolt, the spherical surface of the ball head is connected with the bearing surface, and the reference die and the lower die are fixedly connected into a whole through a plurality of bolts; the reference mold is provided with a plurality of locking mechanisms which are arranged in a straight line, the plurality of locking mechanisms cooperatively fix the disassembly mold, the reference mold is fixedly provided with a heating assembly, the lower mold is provided with a coating runner, the coating runner comprises a main runner and a boosting runner, the main runner is communicated with the reference mold, the boosting runner extends into the disassembly mold, and the coating of the boosting runner is output to the gasket; the cross-sectional dimension of the primary flow passage is greater than the cross-sectional dimension of the boost flow passage.
2. The coater coating die for facilitating rapid and accurate replacement of shims according to claim 1, wherein: and an assembly channel which does not interfere the disassembly and assembly movement of the disassembly mold is arranged between the base and the disassembly mold.
3. The coater coating die for facilitating rapid and accurate replacement of shims according to claim 1, wherein: and the grouting inlet of the main runner is arranged on the side wall of the lower die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910219110.XA CN109759284B (en) | 2019-03-21 | 2019-03-21 | Coating machine coating die head convenient for quick and accurate replacement of gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910219110.XA CN109759284B (en) | 2019-03-21 | 2019-03-21 | Coating machine coating die head convenient for quick and accurate replacement of gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109759284A CN109759284A (en) | 2019-05-17 |
| CN109759284B true CN109759284B (en) | 2023-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910219110.XA Active CN109759284B (en) | 2019-03-21 | 2019-03-21 | Coating machine coating die head convenient for quick and accurate replacement of gasket |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114904715A (en) * | 2021-02-09 | 2022-08-16 | 阳程科技股份有限公司 | Fine adjustment mechanism for controlling coating thickness of coating head |
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| CN109759284A (en) | 2019-05-17 |
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