Multi-row control mechanism for independently controlling front cavity and rear cavity of slit extrusion coating head

Abstract

The utility model discloses a multi-row control mechanism for independently controlling a front cavity and a rear cavity of a slit extrusion coating head, which comprises a coating head assembly, comprising a lower die head, an upper die head connected to the upper portion of the lower die head, a gasket clamped between the lower die head and the upper die head, an injection opening communicating with the lower die head, and a liquid storage groove formed in the inner wall of the lower die head and communicating with the injection opening. An adjusting assembly, comprising a first adjusting groove, a first adjusting block, a first screw rod, a first knob and a second adjusting groove, wherein the first adjusting groove is formed in the upper die head; the first adjusting block is inserted into the first adjusting groove; the first screw rod is meshed with the first adjusting block and is rotationally mounted on the upper die head; the second adjusting block is inserted into the second adjusting groove; and the flow of the pressure balance groove can be adjusted by rotating the second knob, so that the adjustability of the discharge connecting edge of the front cavity and the rear cavity can be achieved, and the coating liquid flow can be adjusted more accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of slit extrusion coating heads, and particularly to a multi-row control mechanism for independently controlling the front and rear cavities of a slit extrusion coating head. Background Technique

[0002] Coating machines are very important production equipment widely used in industries such as electronics, photovoltaics, printing, textiles, and leather. Due to their unique structures and characteristics, they have been widely used in the lithium-ion power battery manufacturing industry in recent years and are one of the key equipment for producing secondary batteries. The slit extrusion coating head is the core executing element to ensure coating accuracy.

[0003] Nowadays, in the entire die coating market, the adjustment method adopted by the die usually has only one row of micrometer adjustments for the upper die. However, this adjustment method cannot achieve full-region adjustment of multiple cavities. Especially, the joint area of the front and rear cavity discharges is basically unadjustable. Content of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and the title of the application of this application, to avoid obscuring the purpose of this part, the abstract, and the title of the utility model. Such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the above and / or problems existing in a multi-row control mechanism for independently controlling the front and rear cavities of a slit extrusion coating head, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a multi-row control mechanism for independently controlling the front and rear cavities of a slit extrusion coating head. When using this device, first connect the injection port to the liquid injection equipment, then inject the liquid. The liquid first flows into the liquid storage tank and then flows through the gap between the lower die head and the upper die head to the coating liquid head at the front end of the two dies. When it is necessary to adjust the liquid flow rate, the discharge flow rates of the liquid in the liquid storage tank and the pressure balance tank can be adjusted separately. Rotate the first knob to drive the first screw rod to rotate, driving the first adjusting block to move up and down, thereby adjusting the discharge flow rate of the liquid storage tank. Similarly, rotating the second knob can adjust the flow rate of the pressure balance tank, so that the adjustability at the joint of the front and rear cavity discharges can be achieved, and the coating liquid flow rate can be adjusted more precisely.

[0007] To solve the above technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

[0008] A multi-row control mechanism for independently controlling the front and rear cavities of a slit extrusion coating head, comprising:

[0009] The coating head assembly includes a lower die head, an upper die head connected above the lower die head, a gasket sandwiched between the lower die head and the upper die head, an injection port connected to the lower die head, and a liquid storage tank opened on the inner wall of the lower die head and communicating with the injection port;

[0010] The adjustment assembly includes a first adjustment groove opened on the upper die head, a first adjustment block inserted in the first adjustment groove, a first screw rod meshed on the first adjustment block and rotatably installed on the upper die head, a first knob fixed on the first screw rod, a second adjustment groove opened on the upper die head, a second adjustment block inserted in the second adjustment groove, a second screw rod meshed on the second adjustment block and rotatably installed on the upper die head, a second knob fixed on the second screw rod, and a pressure balance groove opened on the inner wall of the lower die head. The second adjustment block is close to the side line of the pressure balance groove.

[0011] As a preferred solution of a multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head according to the present invention, the lower die head and the upper die head are connected together by a hinge.

[0012] As a preferred solution of a multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head according to the present invention, a fixing plate is further connected between the lower die head and the upper die head. Bolts are screwed on the fixing plate, and the bolts are respectively screwed into the lower die head and the upper die head.

[0013] As a preferred solution of a multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head according to the present invention, slots are evenly opened beside the liquid storage tank, and electric heating rods are inserted into the slots.

[0014] As a preferred solution of a multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head according to the present invention, the smaller the thickness of the gasket, the higher the precision, and the smaller the coating thickness of the liquid material.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: When using this device, first connect the injection port to the liquid injection device, and then inject the liquid. The liquid first flows into the liquid storage tank, and then flows through the gap between the lower die head and the upper die head to the coating liquid head at the front ends of the two dies; when it is necessary to adjust the liquid flow rate, the discharge flow rates of the liquid in the liquid storage tank and the pressure balance tank can be adjusted respectively. Rotate the first knob to drive the first screw rod to rotate, and drive the first adjustment block to move up and down, so as to adjust the discharge flow rate of the liquid storage tank; similarly, rotate the second knob to adjust the flow rate of the pressure balance tank, so that the adjustability at the joint of the front and rear cavity discharge can be achieved, and the coating liquid flow rate can be adjusted more precisely. Description of the Drawings

[0016] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will describe the present utility model in detail in conjunction with the accompanying drawings and detailed embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0017] Figure 1 FIG. is a schematic diagram of the overall structure of a multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head according to the present utility model;

[0018] Figure 2 FIG. is a sectional view of the structure of a multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head according to the present utility model;

[0019] Figure 3 FIG. is a multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head according to the present utility model Figure 2 Local enlarged view of A in it. Specific embodiments

[0020] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the specific embodiments of the present utility model in detail with reference to the accompanying drawings.

[0021] Secondly, the present utility model will be described in detail in combination with the schematic diagrams. When describing the embodiments of the present utility model in detail, for the convenience of explanation, the sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples, which should not limit the protection scope of the present utility model here. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0022] To make the objects, technical solutions, and advantages of the present utility model clearer, the following will further describe the embodiments of the present utility model in detail with reference to the accompanying drawings.

[0023] The present utility model provides a multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head. When using this device, first connect the injection port to the liquid injection device, and then inject the liquid. The liquid first flows into the liquid storage tank, and then flows through the gap between the lower die head and the upper die head to the coating liquid head at the front end of the two dies; when it is necessary to adjust the liquid flow rate, the discharge flow rates of the liquid in the liquid storage tank and the pressure balance tank can be adjusted respectively. Rotate the first knob to drive the first screw rod to rotate, and drive the first adjustment block to move up and down, thereby adjusting the discharge flow rate of the liquid storage tank; similarly, rotating the second knob can adjust the flow rate of the pressure balance tank, so as to achieve the adjustability at the joint of the front and rear cavity discharge, so that the coating liquid flow rate can be adjusted more precisely.

[0024] Figures 1-3 Shown is a schematic diagram of the overall structure of an embodiment of a multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head according to the present utility model. Please refer to Figures 1-3 A multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head according to this embodiment has a main body portion including a coating head assembly 100 and an adjustment assembly 200.

[0025] The coating head assembly 100 includes a lower die head 110, an upper die head 120 connected above the lower die head 110, a gasket 130 sandwiched between the lower die head 110 and the upper die head 120. The smaller the thickness of the gasket 130, the higher the precision, and the smaller the coating thickness of the liquid material. A liquid injection port 140 connected to the lower die head 110, and a liquid storage tank 150 opened on the inner wall of the lower die head 110 and communicating with the liquid injection port 140; The lower die head 110 and the upper die head 120 are connected together by a hinge, and a fixing plate 170 is also connected between the lower die head 110 and the upper die head 120. Bolts are screwed on the fixing plate 170 and screwed into the lower die head 110 and the upper die head 120 respectively;

[0026] The adjustment assembly 200 includes a first adjustment groove 210 opened on the upper die head 120, a first adjustment block 220 inserted in the first adjustment groove 210, a first screw rod 230 engaged with the first adjustment block 220 and rotatably installed on the upper die head 120, a first knob 240 fixed on the first screw rod 230, a second adjustment groove 250 opened on the upper die head 120, a second adjustment block 260 inserted in the second adjustment groove 250, a second screw rod 270 engaged with the second adjustment block 260 and rotatably installed on the upper die head 120, a second knob 280 fixed on the second screw rod 270, and a pressure balance groove 290 opened on the inner wall of the lower die head 110. The second adjustment block 260 is positioned close to the side line of the pressure balance groove 290;

[0027] Furthermore, insertion slots 150a are evenly opened beside the liquid storage tank 150, and electric heating rods 150b are inserted into the insertion slots 150a. When the injected liquid needs to maintain good flow performance at a certain temperature, the electric heating rods 150b are turned on at this time to reach the appropriate temperature.

[0028] Combined with Figures 1-3, a multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head in this embodiment is used as follows: when using this device, first connect the injection port 140 to a liquid injection device, and then inject liquid. The liquid first flows into the liquid storage tank 150, and then flows through the gap between the lower die head 110 and the upper die head 120 until it reaches the coating liquid head at the front end of the two dies; when it is necessary to adjust the liquid flow rate, the discharge flow rates of the liquid in the liquid storage tank 150 and the pressure balance tank 190 can be adjusted respectively. Rotate the first knob 240 to drive the first screw rod 230 to rotate, and drive the first adjusting block 220 to move up and down, so as to adjust the discharge flow rate of the liquid storage tank 150; similarly, rotate the second knob 280 to adjust the flow rate of the pressure balance tank 290, so that the adjustability at the joint of the front and rear cavity discharge can be achieved, and the coating liquid flow rate can be adjusted more precisely.

[0029] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention can be combined with each other in any way, and the exhaustive description of these combinations is omitted in this specification only for the sake of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head, characterized in that, Comprising: A coating head assembly (100), including a lower die head (110), an upper die head (120) connected above the lower die head (110), a gasket (130) sandwiched between the lower die head (110) and the upper die head (120), a filling port (140) connected to the lower die head (110), and a liquid storage tank (150) opened on the inner wall of the lower die head (110) and communicating with the filling port (140); An adjusting assembly (200), including a first adjusting groove (210) opened on the upper die head (120), a first adjusting block (220) inserted into the first adjusting groove (210), a first screw rod (230) engaged with the first adjusting block (220) and rotatably installed on the upper die head (120), a first knob (240) fixed on the first screw rod (230), a second adjusting groove (250) opened on the upper die head (120), a second adjusting block (260) inserted into the second adjusting groove (250), a second screw rod (270) engaged with the second adjusting block (260) and rotatably installed on the upper die head (120), a second knob (280) fixed on the second screw rod (270), and a pressure balance groove (290) opened on the inner wall of the lower die head (110), wherein the second adjusting block (260) is close to the side line of the pressure balance groove (290).

2. The multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head according to claim 1, characterized in that, The lower die head (110) and the upper die head (120) are connected together by a hinge.

3. A multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head according to claim 2, characterized in that, A fixing plate (170) is further connected between the lower die head (110) and the upper die head (120). Bolts are screwed on the fixing plate (170) and respectively screwed into the lower die head (110) and the upper die head (120).

4. A multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head according to claim 1, characterized in that, Slots (150a) are evenly opened beside the liquid storage tank (150), and heating rods (150b) are inserted into the slots (150a).

5. A multi-row control mechanism for independent control of the front and rear cavities of a slit extrusion coating head according to claim 1, characterized in that, The smaller the thickness of the gasket (130), the higher the precision, and the smaller the coating thickness of the liquid material.

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