Double-adjustment double-layer coating die head

Abstract

The utility model discloses a double-adjustment double-layer coating die head which comprises an upper die, a middle die, a lower die, an upper gasket, a lower gasket, a plurality of upper T-shaped rods, a plurality of lower T-shaped rods, a plurality of upper driving mechanisms and a plurality of lower driving mechanisms, the middle die is hinged to the lower die, the upper die is hinged to the middle die, and the lower die is hinged to the lower T-shaped rods. The upper gasket is arranged between the upper die and the middle die, the lower gasket is arranged between the middle die and the lower die, an upper cavity is formed in the top of the middle die, a middle feeding port communicated with the upper cavity is formed in the back of the middle die, an upper die nozzle is formed in the front end of the upper die and the front end of the middle die, and a lower die nozzle is formed in the rear end of the middle die. And an upper channel for communicating the upper die nozzle with the upper cavity is formed between the upper die and the middle die. According to the utility model, the double-layer coating adjustment of the coating die head can be realized, the problem that the service life of the die head is greatly shortened due to deformation fatigue of a lip caused by repeated adjustment of a traditional threaded push rod is avoided, the use of a servo motor can be reduced, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating die heads, in particular to a double-adjustable double-layer coating die head. Background Art

[0002] At present, in the lithium battery industry, battery cores generally use two different active materials as coatings, so the surface density of the upper and lower coatings needs to be strictly controlled. There are two main ways to adjust the surface density of the upper and lower coatings in the existing double-layer coating die: the first is the combination of the upper die micrometer T block + the lower die threaded push-pull rod structure. The threaded push-pull rod controls the flow at the corresponding position by deforming the lower die lip. The adjustment amount cannot be displayed intuitively during adjustment; repeated adjustment of the threaded push-pull rod will cause lip deformation fatigue, greatly reducing the service life of the die; the second is the upper and lower die servo motor T block structure. A die head often needs to be equipped with dozens of servo motors, and the production cost of the die head is expensive. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a double-adjustable double-layer coating die head.

[0004] The technical solution of the utility model is as follows:

[0005] A double-adjustable double-layer coating die head, comprising an upper die, a middle die, a lower die, an upper gasket, a lower gasket, a plurality of upper T-shaped rods, a plurality of lower T-shaped rods, a plurality of upper driving mechanisms and a plurality of lower driving mechanisms, wherein the middle die is hinged on the lower die, the upper die is hinged on the middle die, the upper gasket is arranged between the upper die and the middle die, the lower gasket is arranged between the middle die and the lower die, an upper cavity is arranged on the top of the middle die, a middle feed port connected to the upper cavity is arranged on the back of the middle die, an upper die mouth is formed at the front end of the upper die and the middle die, an upper channel connected to the upper die mouth and the upper cavity is formed between the upper die and the middle die, a lower cavity is arranged on the top of the lower die, a lower feed port connected to the lower cavity is arranged on the back of the lower die, a lower die mouth is formed at the front end of the middle die and the lower die, and a channel connected to the lower die is formed between the middle die and the lower die. The cam is connected with the upper and lower molds of the machine tool and the lower mold cavity, and the upper T-shaped rod is vertically slidably arranged on the upper mold and its bottom extends into the upper channel. The upper driving mechanism is installed on the upper mold, and its driving end is connected with the upper T-shaped rod and drives the upper T-shaped rod to move up and down. The lower driving mechanism comprises a lower micrometer, a transmission rod, an upper wedge block and a lower wedge block. The lower mold is provided with a transverse groove and a vertical groove that are interconnected. The lower wedge block is horizontally slidably arranged in the transverse groove, and the upper wedge block is vertically slidably arranged in the vertical groove and is wedged with the lower wedge block. The transmission rod is arranged in the transverse groove, and its inner end is connected with the lower wedge block. The lower micrometer is installed on the lower mold, and its output end is connected with the transmission rod and drives the transmission rod to move horizontally in the transverse groove. The lower T-shaped rod is slidably arranged in the vertical groove, and its bottom is connected with the upper wedge block, and its top extends into the lower channel.

[0006] Preferably, the lower driving mechanism further includes a transverse guide rail, a transverse slider, a vertical slider and a vertical guide rail, the transverse guide rail is installed in the transverse groove, the transverse slider is slidably installed on the transverse guide rail, the lower wedge block is installed on the transverse slider, the vertical guide rail is vertically installed in the vertical groove, the vertical slider is installed on the vertical guide rail, and the upper wedge block is installed on the vertical slider.

[0007] Preferably, a sealing gland is provided at the bottom of the lower T-bar, and the sealing gland is slidably disposed in the vertical groove.

[0008] Preferably, a sealing gasket is provided between the sealing gland and the vertical groove.

[0009] Preferably, an upper press strip is provided at the bottom of the upper gasket, and the upper press strip extends into the upper cavity, and a lower press strip is provided at the bottom of the lower gasket, and the lower press strip extends into the lower cavity.

[0010] Preferably, the upper mold and the lower mold are hinged to the middle mold via a flip hinge.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the utility model utilizes the lower micrometer to drive the transmission rod to slide in the transverse groove to move the lower wedge block forward and backward, drive the upper wedge block wedged with the lower wedge block to move up and down, drive the lower T-bar to move up and down, and control the flow size of the lower channel. In addition, the upper driving mechanism drives the upper T-bar to control the flow of the upper channel, which can realize the double-layer coating adjustment of the coating die head, avoid the problem of lip deformation fatigue caused by repeated adjustment of the traditional threaded push rod, and greatly reduce the service life of the die head. The use of the lower micrometer structure can reduce the use of servo motors and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a schematic diagram of the overall structure of the double-adjustable double-layer coating die head of the utility model;

[0014] Figure 2 It is a cross-sectional view of the double-adjustable double-layer coating die head of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the lower driving mechanism of the utility model. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0017] In order to illustrate the technical solution of the present invention, specific embodiments are provided below for illustration.

[0018] Example 1

[0019] like Figures 1 to 3As shown, the double-adjustable double-layer coating die head of this embodiment includes an upper die 1, a middle die 2, a lower die 3, an upper gasket 4, a lower gasket 5, a plurality of upper T-shaped rods 6, a plurality of lower T-shaped rods 7, a plurality of upper drive mechanisms 8 and a plurality of lower drive mechanisms 9, the middle die 2 is hinged on the lower die 3, the upper die 1 is hinged on the middle die 2, the upper gasket 4 is arranged between the upper die 1 and the middle die 2, the lower gasket 5 is arranged between the middle die 2 and the lower die 3, the top of the middle die 2 is provided with an upper cavity 21, the middle die The back of the lower mold 3 is provided with a middle feed port 22 connected to the upper mold cavity 21, the upper mold 1 and the front end of the middle mold 2 form an upper mold mouth 11, and an upper channel 12 connected to the upper mold mouth 11 and the upper mold cavity 21 is formed between the upper mold 1 and the middle mold 2, and a lower mold cavity 31 is provided on the top of the lower mold 3, and a lower feed port 32 connected to the lower mold cavity 31 is provided on the back of the lower mold 3, and the middle mold 2 and the front end of the lower mold 3 form a lower mold mouth 33, and the middle mold 2 and the lower mold 3 form a lower mold mouth 33. The nozzle 33 and the lower channel 34 of the lower cavity 31, the upper T-shaped rod 6 is vertically slidably arranged on the upper mold 1, and its bottom extends into the upper channel 12, the upper driving mechanism 8 is installed on the upper mold 1, and its driving end is connected to the upper T-shaped rod 6 and drives the upper T-shaped rod 6 to move up and down, the lower driving mechanism 9 includes a lower micrometer 91, a transmission rod 92, an upper wedge block 93, and a lower wedge block 94. The lower mold 3 is provided with a transverse groove 35 and a vertical groove 36 that are interconnected, and the lower wedge block 94 is horizontally slidably installed on the In the transverse groove 35, the upper wedge block 93 is vertically slidably installed in the vertical groove 36 and wedged with the lower wedge block 94. The transmission rod 92 is arranged in the transverse groove, and its inner end is connected with the lower wedge block 94. The lower micrometer 91 is installed on the lower mold 3, and its output end is connected with the transmission rod 92 and drives the transmission rod 92 to move horizontally in the transverse groove 35. The lower T-shaped rod 7 is slidably installed in the vertical groove 36, and its bottom is connected with the upper wedge block 93, and its top extends into the lower channel 34. During operation, the lower micrometer 91 drives the transmission rod 92 to slide in the transverse groove 35 to move the lower wedge block 94 forward and backward, and drives the upper wedge block 93 wedged with the lower wedge block 94 to move up and down, and drives the lower T-shaped rod 7 to move up and down, so as to control the flow of the lower channel 34, and the upper driving mechanism 8 drives the upper T-shaped rod 6 to control the flow of the upper channel 12. The double-adjustable double-layer coating die head of this embodiment can realize the double-layer coating adjustment of the coating die head, avoiding the problem of lip deformation fatigue caused by repeated adjustment of the traditional threaded push rod, greatly reducing the service life of the die head, and adopting the lower micrometer structure can reduce the use of servo motors and save costs.

[0020] In this embodiment, the lower driving mechanism 9 also includes a transverse guide rail 95, a transverse slider 96, a vertical slider 97 and a vertical guide rail 98. The transverse guide rail 95 is installed in the transverse groove 35, the transverse slider 96 is slidably installed on the transverse guide rail, the lower wedge block 94 is installed on the transverse slider 96, the vertical guide rail 97 is vertically installed in the vertical groove 36, the vertical slider 98 is installed on the vertical guide rail 97, and the upper wedge block 93 is installed on the vertical slider 98. The cooperation between the slider and the guide rail makes the upper wedge block 93 in the vertical groove 36 and the lower wedge block 94 in the transverse groove 35 slide more smoothly.

[0021] In this embodiment, a sealing gland 99 is provided at the bottom of the lower T-shaped rod 7, and the sealing gland 99 is slidably disposed in the vertical groove 36 to prevent the coating liquid from entering the vertical groove 36 and contaminating the internal structure. A sealing gasket 910 is provided between the sealing gland 99 and the vertical groove 36, and between the lower T-shaped rod 7 and the vertical groove 36 to enhance the sealing effect.

[0022] In this embodiment, an upper pressure strip 41 is provided at the bottom of the upper gasket 4, and the upper pressure strip 41 extends into the upper cavity 21, and a lower pressure strip 51 is provided at the bottom of the lower gasket 5, and the lower pressure strip 51 extends into the lower cavity 31, so that the coating liquid flows from the rear of the upper cavity 21 and the lower cavity 31 through the bottom and both sides thereof to the front thereof, so that the coating liquid flows more evenly. The upper mold 1 and the lower mold 3 are hinged to the middle mold 2 through the flip hinge 13, so that the upper mold 1 can be flipped on the middle mold 2, and the middle mold 2 can be flipped on the lower mold 3.

[0023] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-adjustable double-layer coating die head, characterized in that: The invention comprises an upper die, a middle die, a lower die, an upper gasket, a lower gasket, a plurality of upper T-shaped rods, a plurality of lower T-shaped rods, a plurality of upper driving mechanisms and a plurality of lower driving mechanisms, wherein the middle die is hinged on the lower die, the upper die is hinged on the middle die, the upper gasket is arranged between the upper die and the middle die, the lower gasket is arranged between the middle die and the lower die, an upper cavity is arranged on the top of the middle die, a middle feed port connected with the upper cavity is arranged on the back of the middle die, an upper die mouth is formed at the front end of the upper die and the middle die, an upper channel connected with the upper die mouth and the upper cavity is formed between the upper die and the middle die, a lower cavity is arranged on the top of the lower die, a lower feed port connected with the lower cavity is arranged on the back of the lower die, a lower die mouth is formed at the front end of the middle die and the lower die, a channel connected with the lower die mouth and the lower cavity is formed between the middle die and the lower die. The lower channel of the upper T-bar is vertically slidably arranged on the upper mold, and its bottom extends into the upper channel. The upper driving mechanism is installed on the upper mold, and its driving end is connected with the upper T-bar and drives the upper T-bar to move up and down. The lower driving mechanism comprises a lower micrometer, a transmission rod, an upper wedge block, and a lower wedge block. The lower mold is provided with a transverse groove and a vertical groove that are interconnected with each other. The lower wedge block is horizontally slidably arranged in the transverse groove, and the upper wedge block is vertically slidably arranged in the vertical groove and is wedged with the lower wedge block. The transmission rod is arranged in the transverse groove, and its inner end is connected with the lower wedge block. The lower micrometer is installed on the lower mold, and its output end is connected with the transmission rod and drives the transmission rod to move horizontally in the transverse groove. The lower T-bar is slidably arranged in the vertical groove, and its bottom is connected with the upper wedge block, and its top extends into the lower channel.

2. The double-adjustable double-layer coating die according to claim 1, characterized in that: The lower driving mechanism also includes a transverse guide rail, a transverse slider, a vertical slider and a vertical guide rail, the transverse guide rail is installed in the transverse groove, the transverse slider is slidably installed on the transverse guide rail, the lower wedge block is installed on the transverse slider, the vertical guide rail is vertically installed in the vertical groove, the vertical slider is installed on the vertical guide rail, and the upper wedge block is installed on the vertical slider.

3. The double-adjustable double-layer coating die according to claim 1 or 2, characterized in that: A sealing gland is provided at the bottom of the lower T-shaped rod, and the sealing gland is slidably arranged in the vertical groove.

4. The double-adjustable double-layer coating die according to claim 3, characterized in that: A sealing gasket is provided between the sealing gland and the vertical groove.

5. The double-adjustable double-layer coating die according to claim 1 or 2, characterized in that: An upper press strip is provided at the bottom of the upper gasket, and the upper press strip extends into the upper cavity. A lower press strip is provided at the bottom of the lower gasket, and the lower press strip extends into the lower cavity.

6. The double-adjustable double-layer coating die according to claim 1 or 2, characterized in that: The upper mold and the lower mold are hinged on the middle mold through a flip hinge.

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