Serial Servo Valve Mechanism

Abstract

A serial servo valve including a drive motor (9), a first valve seat (11), a second valve seat (12), a first guide block (21), a first eccentric wheel (31), a second guide block (22), a second eccentric wheel (32), a first eccentric shaft (33), a second eccentric shaft (34), a first valve core holder (13), a second valve core holder (14), a first valve core (41), a second valve core (42), a first valve stem (51), a second valve stem (52), a first valve core plug (43), and a second valve core plug (44). The first guide block (21) is capable of moving the first valve core plug (43) by the first valve stem (51) so as to cooperate with the first valve core (41) to turn on and off the passage inside the first valve core holder (13), and the second guide block (22) is capable of moving the second valve core plug (44) by the second valve stem (52) so as to cooperate with the second valve core (42) to turn on and off the passage inside the second valve core holder (14).

Description

[Technical field]

[0001] The present invention relates to the field of lithium battery production, and in particular to serial servo valve mechanisms. [Background technology]

[0002] In the field of lithium battery production, coating of substrate is a very important process. The efficiency and quality of coating directly affect the production efficiency and production quality of lithium batteries, and play a very important role in the entire lithium battery production.

[0003] In the coating process of lithium battery substrate, the coating speed is continuously improved and the operation frequency of the servo valve is increased, so the response time of the servo valve is required to be shorter and shorter. In the coating process of the prior art, a parallel servo valve mechanism is generally adopted to control the coating of the slurry to realize intermittent coating. When the coating speed is improved to 30m / min or more, the signal response between the two parallel servo valves in the prior art is also close to 8ms. If there is a slight signal delay, the thickness of the coating head and tail will be out of the allowable range, which will affect the coating quality.

[0004] Therefore, the present invention aims to provide a new technical solution to solve the existing technical deficiencies. Summary of the Invention [Problem to be solved by the invention]

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a serial servo valve mechanism to solve the technical defects in the prior art, such as delayed signal during intermittent coating process, coating success thickness being out of tolerance, and poor coating quality. [Means for solving the problem]

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a drive motor; a first guide block; a first valve seat having a first eccentric wheel attached thereto, the first eccentric wheel having a first eccentric shaft movably connected to the first guide block and capable of driving the first guide block to reciprocate within the first valve seat; a second guide block; and a second valve seat having a second eccentric wheel attached thereto, the second eccentric wheel having a second eccentric shaft movably connected to the second guide block and capable of driving the second guide block to reciprocate within the second valve seat, wherein an output end of the drive motor is connected to the first eccentric wheel and is capable of moving the first eccentric wheel to rotate, and the first eccentric shaft is connected to the second eccentric wheel and is capable of driving the second eccentric wheel to rotate, and the first valve seat and the second valve seat are respectively provided with a first valve core, a first valve core holder to which a second valve core is attached, a second valve core holder to which a second valve core is attached, and a second valve core holder to which a second valve core is attached. a first valve stem having a first valve core plug attached thereto that extends into the first valve core holder and mates with the first valve core, and a second valve stem having a second valve core plug attached thereto that extends into the second valve core holder and mates with the second valve core, the first guide block being capable of moving the first valve core plug by the first valve stem to turn on and off a passage inside the first valve core holder in cooperation with the first valve core, and the second guide block being capable of moving the second valve core plug by the second valve stem to turn on and off a passage inside the second valve core holder in cooperation with the second valve core.

[0007] As an improvement of the above technical solution, the first valve core holder and the second valve core holder are respectively provided with a first connection head and a second connection head, each having a first outlet and a second outlet, the first valve core holder has a first inlet and the second valve core holder has a second inlet, and the second inlet and the first inlet are connected to each other.

[0008] As a further improvement of the above technical solution, the first valve core holder has a connecting pipe communicating with the first inlet and communicating with the second inlet, the connecting pipe being fixedly connected by a second clamp, and a sealing ring is provided between the connecting pipe and the second inlet.

[0009] As a further improvement of the above technical solution, the first connection head is fixedly connected to the first valve core holder by a third clamp, the second connection head is fixedly connected to the second valve core holder by a fourth clamp, a seal ring is provided between the first connection head and the first valve core holder and between the second connection head and the second valve core holder, the first valve stem enters into the first connection head, the first valve core plug is located in the inner chamber of the first connection head, the second valve stem enters into the second connection head, and the second valve core plug is located in the inner chamber of the second connection head.

[0010] As a further improvement of the above technical solution, the driving motor is provided with a first coupling at an output end, connected to the first eccentric wheel by the first coupling, fixedly attached to a side of the first valve seat, and fixedly connected to the first valve seat by a first connecting clamp.

[0011] As a further improvement of the above technical solution, an intermediate shaft is provided at the output end of the first eccentric shaft, and a second coupling is provided between the intermediate shaft and the second eccentric wheel, the first eccentric shaft can move to rotate the second eccentric wheel via the intermediate shaft and the second coupling, and a first scale plate whose pointer rotates synchronously with the first eccentric shaft and a second scale plate whose pointer rotates synchronously with the second eccentric wheel are provided outside the second coupling.

[0012] As a further improvement of the above technical solution, a first guide bush is provided inside the first valve seat, and the first valve stem is mounted in the first guide bush; a second guide bush is provided inside the second valve seat, and the second valve stem is mounted in the second guide bush.

[0013] As a further improvement of the above technical solution, the first eccentric wheel comprises a first eccentric wheel shaft portion rotatably mounted inside the first valve seat and a first eccentric wheel disk to which the first eccentric wheel is fixedly mounted, and the second eccentric wheel comprises a second eccentric wheel shaft portion rotatably mounted inside the second valve seat and a second eccentric wheel disk to which the second eccentric wheel is fixedly mounted.

[0014] As a further improvement of the above technical solution, the first valve stem is fixedly connected to the upper part of the first guide block by a first screw, the second valve stem is fixedly connected to the upper part of the second guide block by a second screw, a first guide stem is fixedly connected to the lower part of the first guide block by a third screw, and extends from the bottom of the first valve seat, which has a through hole into which the first guide stem is fitted, to the outside of the first valve seat, and a second guide stem is fixedly connected to the lower part of the second guide block by a fourth screw, and extends from the bottom of the second valve seat, which has a through hole into which the second guide stem is fitted, to the outside of the second valve seat.

[0015] As a further improvement of the above technical solution, the first valve seat and the first valve core holder are fixedly connected by a fifth clamp, the second valve seat and the second valve core holder are fixedly connected by a sixth clamp, a seal ring is provided between the first valve seat and the first valve core holder and between the second valve seat and the second valve core holder, the first valve seat and the second valve seat are fixedly connected by a seventh clamp, a first valve seat chamber is provided inside the first valve seat, the first guide block is installed in the first valve seat chamber, a second valve seat chamber is provided inside the second valve seat, and the second guide block is installed in the second valve seat chamber. Effect of the Invention

[0016] The beneficial effects of the present invention are as follows: The present invention provides a serial servo valve mechanism, which can effectively eliminate the signal delay appearing in the conventional parallel servo valve by using the same driving motor to move the first valve core plug and the second valve core plug, which is advantageous to improve the phenomenon that the coating result is out of the acceptable range caused by the servo signal delay and improve the coating quality, and is also advantageous to realize high-speed coating and improve the coating efficiency, and the operation of such a servo valve can be adjusted according to actual needs, which has the characteristics of high application flexibility and high versatility.

[0017] From the above, such a serial servo valve mechanism solves the technical defects existing in the prior art, such as the delayed signal appearing during the intermittent coating process, the thickness of the coating end being out of the acceptable range, and the poor coating quality. [Brief description of the drawings]

[0018] The present invention will now be further described with reference to the drawings and examples.

[0019] [Figure 1] FIG. 2 is an assembly schematic diagram of the present invention. [Diagram 2] FIG. 11 is an assembly schematic diagram of another angle of the present invention. [Diagram 3] FIG. 13 is an assembly schematic diagram of the third angle of the present invention. [Figure 4] FIG. 2 is a schematic diagram of the cutting structure of the present invention. [Diagram 5] FIG. 4 is a schematic diagram of the angle adjustment of the servo valve in the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] In order to fully understand the objectives, features and effects of the present invention, the concept, specific structure and resulting technical effects of the present invention will be described below clearly and completely with reference to the embodiments and drawings. The described embodiments are not all embodiments, but only some of the embodiments of the present invention. It is clear that any other embodiments obtained based on the embodiments of the present invention without the creative labor of a person skilled in the art are within the scope of protection of the present invention. In addition, all the connections and coupling relationships in the patent do not only mean that the members are directly connected, but also mean that a better connection structure can be formed by adding or removing auxiliary connection devices according to the specific implementation situation. With reference to Figures 1 to 5, the technical features in the creation of the present invention can be combined with each other on the premise that they are not contradictory or conflict with each other.

[0021] A serial servo valve mechanism comprising a drive motor 9, a first valve seat 11 and a second valve seat 12, wherein a first guide block 21 and a first eccentric wheel 31 are mounted in the first valve seat 11, a second guide block 22 and a second eccentric wheel 32 are mounted in the second valve seat 12, and the first eccentric wheel 31 is provided with a first eccentric shaft 33 movably connected to the first guide block 21 and capable of driving the first guide block 21 to reciprocate in the first valve seat 11, and the second eccentric wheel 32 is provided with a first eccentric shaft 33 movably connected to the first guide block 21 and capable of driving the first guide block 21 to reciprocate in the first valve seat 11. The first eccentric wheel 32 is provided with a second eccentric shaft 34 movably connected to the second guide block 22 and capable of driving the second guide block 22 to reciprocate within the second valve seat 12. The output end of the drive motor 9 is connected to the first eccentric wheel 31 and capable of moving the first eccentric wheel 31 to rotate. The first eccentric shaft 33 is connected to the second eccentric wheel 32 and capable of driving the second eccentric wheel 32 to rotate. The first valve seat 11 and the second valve seat 12 are provided with a first valve core holder 13 and a second valve core holder 14, respectively. A lube core holder 14 is connected, and a first valve core 41 and a second valve core 42 are attached in the first valve core holder 13 and the second valve core holder 14, respectively. A first valve stem 51 and a second valve stem 52 are fixedly connected to the first guide block 21 and the second guide block 22, respectively. A first valve core plug 43 is attached to the first valve stem 51, which extends into the first valve core holder 13 and fits with the first valve core 41. The second valve stem 52 is attached to the second valve core holder 13. The first guide block 21 is capable of moving the first valve core plug 43 by a first valve stem 51 to link with the first valve core 41 and to turn on and off the passage inside the first valve core holder 13, and the second guide block 22 is capable of moving the second valve core plug 44 by a second valve stem 52 to link with the second valve core 42 and to turn on and off the passage inside the second valve core holder 14.It is possible to move it so as to achieve off.

[0022] Preferably, the first valve core holder 13 and the second valve core holder 14 are provided with a first connection head 15 and a second connection head 16, respectively, the first connection head 15 and the second connection head 16 have a first outlet 151 and a second outlet 161, respectively, the first valve core holder 13 has a first inlet 131, and the second valve core holder 14 has a second inlet 141, and the second inlet 141 and the first inlet 131 communicate with each other.

[0023] Preferably, the first valve core holder 13 has a connecting pipe 132, which is connected to the first inlet 131, and which is connected to the second inlet 141 and fixedly connected by using a second clamp 61, and a seal ring is provided between the connecting pipe 132 and the second inlet 141.

[0024] Preferably, the first connection head 15 is fixedly connected to the first valve core holder 13 by a third clamp 62, and the second connection head 16 is fixedly connected to the second valve core holder 14 by a fourth clamp 63, a seal ring is provided between the first connection head 15 and the first valve core holder 13 and between the second connection head 16 and the second valve core holder 14, the first valve stem 51 enters the inside of the first connection head 15, the first valve core plug 43 is located in the inner chamber of the first connection head 15, the second valve stem 52 enters the inside of the second connection head 16, and the second valve core plug 44 is located in the inner chamber of the second connection head 16.

[0025] Preferably, the drive motor 9 is provided with a first coupling 71 at its output end and is connected to the first eccentric wheel 31 by the first coupling 71, the drive motor 9 is fixedly attached to the side of the first valve seat 11, and the drive motor 9 is fixedly connected to the first valve seat 11 by a first connecting clamp.

[0026] Preferably, an intermediate shaft 35 is provided at the output end of the first eccentric shaft 33, and a second coupling 72 is provided between the intermediate shaft 35 and the second eccentric wheel 32, the first eccentric shaft 33 can move the second eccentric wheel 32 to rotate by the intermediate shaft 35 and the second coupling 72, a first scale plate 73 and a second scale plate 74 are provided outside the second coupling 72, a pointer of the first scale plate 73 rotates in synchronization with the first eccentric shaft 33, and a pointer of the second scale plate 74 rotates in synchronization with the second eccentric wheel.

[0027] Preferably, a first guide bush 111 is provided inside the first valve seat 11, and the first valve stem 51 is mounted in the first guide bush 111, and a second guide bush 121 is provided inside the second valve seat 12, and the second valve stem 52 is mounted in the second guide bush 121.

[0028] Preferably, the first eccentric wheel 31 comprises a first eccentric wheel shaft portion and a first eccentric wheel disk, the first eccentric wheel shaft portion is rotatably mounted inside the first valve seat 11, the first eccentric shaft 33 is fixedly mounted to the first eccentric wheel disk, the second eccentric wheel 32 comprises a second eccentric wheel shaft portion and a second eccentric wheel disk, the second eccentric wheel shaft portion is rotatably mounted inside the second valve seat 12, and the second eccentric shaft 34 is fixedly mounted to the second eccentric wheel disk.

[0029] Preferably, the first valve stem 51 is fixedly connected to the upper part of the first guide block 21 by a first screw, the second valve stem 52 is fixedly connected to the upper part of the second guide block 22 by a second screw, and a first guide stem 53 is fixedly connected to the lower part of the first guide block 21 by a third screw. The first guide stem 53 is fixedly connected to the lower part of the first valve seat 11 by a third screw. The first valve seat 11 has a through hole that fits with the first guide stem 53, and a second guide stem 54 is fixedly connected to the lower part of the second guide block 22 by a fourth screw, and the second guide stem 54 extends outward from the bottom of the second valve seat 12 to the outside of the second valve seat 12, and the second valve seat 12 has a through hole that fits with the second guide stem 54.

[0030] Preferably, the first valve seat 11 and the first valve core holder 13 are fixedly connected by a fifth clamp, the second valve seat 12 and the second valve core holder 14 are fixedly connected by a sixth clamp, a seal ring is provided between the first valve seat 11 and the first valve core holder 13 and between the second valve seat 12 and the second valve core holder 14, the first valve seat 11 and the second valve seat 12 are fixedly connected by a seventh clamp, a first valve seat chamber is provided inside the first valve seat 11, the first guide block 21 is installed in the first valve seat chamber, a second valve seat chamber is provided inside the second valve seat 12, and the second guide block 22 is installed in the second valve seat chamber.

[0031] When the present invention is specifically implemented, the first eccentric wheel 31 is moved in rotation by the drive motor 9, the first eccentric wheel 31 moves the first eccentric shaft 33 in motion, the first eccentric shaft 33 moves the second eccentric wheel 32 in rotation by the intermediate shaft 35, and the second eccentric wheel 32 moves the second eccentric shaft 34 in motion.

[0032] In the course of its movement, the first eccentric shaft 33 can move the first guide block 21 up and down, the first guide block 21 moves the first valve stem 51 up and down, the first valve stem 51 moves the first valve core plug 43 up and down, and the first valve core plug 43 cooperates with the first valve core 41 to open and close the passage inside the first valve core holder 13. Similarly, in the course of its movement, the second eccentric shaft 34 can move the second guide block 22 up and down, the second guide block 22 moves the second valve stem 52 up and down, the second valve stem 52 moves the second valve core plug 44 up and down, and the second valve core plug 44 cooperates with the second valve core 42 to open and close the passage inside the second valve core holder 14.

[0033] One drive motor 9 can realize the movement of two sets of servo valves, and if necessary, it is also possible to connect three or more sets of valves in series and operate them using the same motor, thereby eliminating signal delay.

[0034] In this technical solution, the intermediate shaft 35 and the second coupling 72 are adopted to realize the serial operation of two sets of valve mechanisms, so that the start-stop times are synchronized and no signal delay occurs, which contributes to increasing the response speed, improving the coating efficiency, and improving the coating quality.

[0035] The use of the first scale plate 73 and the second scale plate 74 on the second coupling 72 can facilitate the observation of the angle difference between the two sets of valve mechanisms. In practical application, the relative rotation angle between the two sets of servo valve mechanisms can be adjusted according to needs and then locked and connected.

[0036] By adjusting the relative angle of rotation of the eccentric mechanisms inside the two valve mechanisms, the position difference between the two valve core plugs can be controlled, and when the driving motor 9 is operating, the valve core plugs of the two servo valves will not operate in the same way, which can be flexibly adjusted according to process needs.

[0037] Although the preferred embodiments of the present invention have been described in detail above, the invention is not limited to the above embodiments. Those skilled in the art may make various equivalent modifications or replacements without departing from the spirit of the present invention, and all of these equivalent modifications or replacements are included within the scope defined by the claims of this application.

Claims

1. A drive motor (9); a first valve seat (11) on which is mounted a first eccentric (31) having a first eccentric shaft (33) movably connected to the first guide block (21) and capable of driving the first guide block (21) to reciprocate in the first valve seat (11); a second guide block (22) and a second valve seat (12) on which is mounted a second eccentric (32) provided with a second eccentric shaft (34) movably connected to the second guide block (22) and capable of driving the second guide block (22) to reciprocate within the second valve seat (12); The output end of the drive motor (9) is connected to the first eccentric wheel (31) and is capable of moving the first eccentric wheel (31) to rotate, and the first eccentric shaft (33) is connected to the second eccentric wheel (32) and is capable of driving the second eccentric wheel (32) to rotate, a first valve core holder (13) and a second valve core holder (14) are connected to the first valve seat (11) and the second valve seat (12), respectively, a first valve core (41) and a second valve core (42) are attached to the first valve seat (11) and the second valve seat (12), respectively, a first valve core plug (43) that extends and enters the first valve core holder (13) and fits with the first valve core (41) is attached to the first guide block (21) and the second guide block (22), respectively. a valve stem (51) and a second valve stem (52) to which a second valve core plug (44) is attached, the second valve stem (52) extending into and entering the second valve core holder (14) and engaging with the second valve core (42), the first guide block (21) is capable of moving the first valve core plug (43) by the first valve stem (51) so as to cooperate with the first valve core (41) to turn on and off a passage inside the first valve core holder (13), and the second guide block (22) is capable of moving the second valve core plug (44) by the second valve stem (52) so as to cooperate with the second valve core (42) to turn on and off a passage inside the second valve core holder (14), The first eccentric (31) comprises a first eccentric shaft portion rotatably attached inside a first valve seat (11) and a first eccentric disk, and the second eccentric (32) comprises a second eccentric shaft portion rotatably attached inside a second valve seat (12) and a second eccentric disk.

1. A serial servo valve mechanism comprising:

2. The first valve core holder (13) and the second valve core holder (14) are provided with a first connection head (15) and a second connection head (16) having a first outlet (151) and a second outlet (161), respectively. The first valve core holder (13) has a first inlet (131), and the second valve core holder (14) has a second inlet (141), and the second inlet (141) and the first inlet (131) communicate with each other.

2. The serial servo valve mechanism of claim 1.

3. The first valve core holder (13) has a connecting pipe (132) that communicates with the first inlet (131) and the second inlet (141) and is fixedly connected to the first valve core holder (13) by using a second clamp (61), and a seal ring is provided between the first valve core holder (13) and the second inlet (141).

3. The serial servo valve mechanism according to claim 2.

4. the first connection head (15) is fixedly connected to the first valve core holder (13) by a third clamp (62), the second connection head (16) is fixedly connected to the second valve core holder (14) by a fourth clamp (63), a seal ring is provided between the first connection head (15) and the first valve core holder (13) and between the second connection head (16) and the second valve core holder (14), the first valve stem (51) enters the inside of the first connection head (15), the first valve core plug (43) is located in the inner chamber of the first connection head (15), the second valve stem (52) enters the inside of the second connection head (16), and the second valve core plug (44) is located in the inner chamber of the second connection head (16); 3. The serial servo valve mechanism according to claim 2.

5. The drive motor (9) is provided with a first coupling (71) at an output end, and is connected to the first eccentric wheel (31) by the first coupling (71), and is fixedly attached to a side of the first valve seat (11), and is fixedly connected to the first valve seat (11) by a first connecting clamp.

2. The serial servo valve mechanism of claim 1.

6. An intermediate shaft (35) is provided at the output end of the first eccentric shaft (33), and a second coupling (72) is provided between the intermediate shaft (35) and the second eccentric wheel (32). The first eccentric shaft (33) can move the second eccentric wheel (32) to rotate by the intermediate shaft (35) and the second coupling (72). A first scale plate (73) whose pointer rotates in synchronization with the first eccentric shaft (33) and a second scale plate (74) whose pointer rotates in synchronization with the second eccentric wheel (32) are provided outside the second coupling (72).

2. The serial servo valve mechanism of claim 1.

7. A first guide bush (111) is provided inside the first valve seat (11), and the first valve stem (51) is attached in the first guide bush (111), and a second guide bush (121) is provided inside the second valve seat (12), and the second valve stem (52) is attached in the second guide bush (121).

2. The serial servo valve mechanism of claim 1.

8. The first eccentric shaft (33) is fixedly attached to the first eccentric disk, and the second eccentric shaft (34) is fixedly attached to the second eccentric disk.

2. The serial servo valve mechanism of claim 1.

9. The first valve stem (51) is fixedly connected to the upper part of the first guide block (21) by a first screw, the second valve stem (52) is fixedly connected to the upper part of the second guide block (22) by a second screw, the first guide stem (53) is fixedly connected to the lower part of the first guide block (21) by a third screw, and the first guide stem (53) extends from the bottom of the first valve seat (11) to the outside of the first valve seat (11) by a third screw, and the second guide stem (54) is fixedly connected to the lower part of the second guide block (22) by a fourth screw, and extends from the bottom of the second valve seat (12) to the outside of the second valve seat (12) by a fourth screw.

2. The serial servo valve mechanism of claim 1.

10. The first valve seat (11) and the first valve core holder (13) are fixedly connected by a fifth clamp, the second valve seat (12) and the second valve core holder (14) are fixedly connected by a sixth clamp, a seal ring is provided between the first valve seat (11) and the first valve core holder (13) and between the second valve seat (12) and the second valve core holder (14), the first valve seat (11) and the second valve seat (12) are fixedly connected by a seventh clamp, a first valve seat chamber is provided inside the first valve seat (11), the first guide block (21) is attached in the first valve seat chamber, a second valve seat chamber is provided inside the second valve seat (12), and the second guide block (22) is attached in the second valve seat chamber.

2. The serial servo valve mechanism of claim 1.

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