Automatic sampling device

Abstract

The utility model discloses an automatic sampling device which comprises a mounting frame, a sampling guide part, a transverse movement driving module and a base plate driving device, a sampling module is arranged on the sampling guide part and comprises a sampling driving device and a sampling head arranged at the output end of the sampling driving device, and the sampling head is a negative pressure type sampling head. The sampling driving part is used for driving the sampling head to move so as to realize a sampling function; a sampling base plate is arranged at the output end of the base plate driving device, and the base plate driving device is used for driving the sampling base plate to be close to or away from a membrane material needing to be sampled. The automatic sampling device has the characteristics of simple structure and convenience in implementation, and can reduce the operation difficulty and the labor cost and greatly improve the working efficiency during application.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery production, in particular to an automatic sampling device. Background Art

[0002] Lithium-ion batteries have the advantages of high voltage, small size, light weight, pollution-free and long service life, and are currently widely used in digital products such as mobile phones, laptops, and Bluetooth devices, as well as power products such as electric vehicles and electric bicycles. In the production process of lithium-ion batteries, the coater is of great significance for coating the electrodes of lithium-ion batteries and is the most important core equipment for the front-end processing equipment of lithium batteries; before and after the coater coats, it is often necessary to sample and weigh and compare to obtain the weight of the coated slurry, so as to judge whether the thickness of the coated slurry meets the process requirements, and further judge whether the coating effect meets the requirements. In the existing equipment, it is generally necessary to stop the machine first, and then the worker manually cuts a part of the electrode, and then uses a manual sampler to cut it to obtain a circular electrode sample. There are disadvantages such as troublesome operation, high labor cost, and low production efficiency.

[0003] Therefore, the purpose of the present utility model is to provide a new technical solution to solve the existing technical defects. Content of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the present utility model provides an automatic sampling device, which solves the technical defects such as high labor cost and low production efficiency existing in the prior art.

[0005] The technical solution adopted by the present utility model to solve its technical problems is as follows:

[0006] An automatic sampling device includes a mounting frame, a sampling guiding member, a transverse movement driving module, and a backing plate driving device arranged on the mounting frame. A sampling module is arranged on the sampling guiding member. The acting end of the transverse movement driving module is connected to the sampling module and can drive the sampling module to move on the sampling guiding member. The sampling module includes a sampling driving device and a sampling head arranged at the output end of the sampling driving device. The sampling head is a negative pressure type sampling head, and the sampling driving member is used to drive the sampling head to move to achieve the sampling function; a sampling backing plate is arranged at the output end of the backing plate driving device, and the backing plate driving device is used to drive the sampling backing plate to approach or move away from the film material to be sampled.

[0007] As a further improvement of the above technical solution, the transverse movement driving module includes a transverse movement driving motor and a transverse movement screw-nut pair mounted on the mounting frame. The output end of the transverse movement driving motor is connected to one end of the screw of the transverse movement screw-nut pair and can drive the screw of the transverse movement screw-nut pair to rotate. The nut of the transverse movement screw-nut pair is directly or indirectly connected to the sampling module, and the transverse movement driving motor can drive the sampling module to move on the sampling guiding member through the transverse movement screw-nut pair.

[0008] As a further improvement of the above technical solution, both ends of the screw of the transverse movement screw-nut pair are mounted on the mounting frame through screw mounting seats and screw mounting bearings, and the output end of the transverse movement driving motor is connected to one end of the screw of the transverse movement screw-nut pair through a coupling.

[0009] As a further improvement of the above technical solution, the sampling guiding member is a sampling guide rail provided on the mounting frame, and the sampling module is arranged on the sampling guide rail and can slide on the sampling guide rail.

[0010] As a further improvement of the above technical solution, a position sensor is provided on the mounting frame, and the position sensor is used to sense whether the sampling head is in place.

[0011] As a further improvement of the above technical solution, the backing plate driving device includes a backing plate driving cylinder. The output end of the backing plate driving cylinder is provided with a backing plate mounting plate, and the sampling backing plate is arranged on the backing plate mounting plate. The backing plate driving cylinder is mounted on the mounting frame through a backing plate cylinder seat.

[0012] As a further improvement of the above technical solution, the driving module includes a sampling sliding seat mounted on the sampling guiding member. The sampling driving device is arranged on the sampling sliding seat. The sampling head includes a sampling head shank and a sampling head upper die connected to one end of the sampling head shank. A sampling head spring top and a compression spring are arranged inside the sampling head upper die. The sampling head shank is directly or indirectly mounted on the sampling sliding seat through a linear bearing. The output end of the sampling driving device is connected to the other end of the sampling head shank and can drive the sampling head upper die to move along the guiding direction of the linear bearing through the sampling head shank.

[0013] As a further improvement of the above technical solution, the sampling driving device includes a sampling driving cylinder arranged on the sampling sliding seat. The output shaft of the sampling driving cylinder is connected to the sampling head shank, and the sampling driving cylinder is mounted on the sampling sliding seat through a sampling cylinder seat.

[0014] As a further improvement of the above technical solution, the mounting frame includes two mounting frame side plates and a side plate connecting plate connected between the two mounting frame side plates. A roller is further arranged between the two mounting frame side plates. There are two of the rollers (13), which are respectively arranged on the front and rear sides of the sampling module along the film material running direction.

[0015] As a further improvement of the above technical solution, it further includes a pressing belt module. There are two sets of the pressing belt modules, and the two sets of pressing belt modules are used to press the film material on the front and rear sides of the sampling module along the film material running direction.

[0016] As a further improvement of the above technical solution, the pressing belt module includes a pressing belt driving cylinder and a pressing belt platform. A pressing belt rod is arranged at the output end of the pressing belt driving cylinder. The film material passes between the pressing belt rod and the pressing belt platform. The pressing belt driving cylinder can drive the pressing belt rod to press against the pressing belt platform to press the film material between the pressing belt platform and the pressing belt rod.

[0017] The beneficial effects of the present utility model are as follows: The present utility model provides an automatic sampling device. Through this automatic sampling device, a sampling guiding member, a transverse movement driving module, a backing plate driving device and a sampling module are provided. The backing plate driving device drives the sampling backing plate to approach or move away from the film material to be sampled. The transverse movement driving module drives the sampling module to move on the sampling guiding member. The sampling head in the sampling module is used to realize the sampling work of the film material. The whole sampling process realizes automatic control, and can realize the automatic sampling work without stopping the machine during the production process of the pole piece, greatly reducing the operation difficulty and labor cost, and improving the production efficiency.

[0018] In summary, this automatic sampling device solves the technical defects such as high labor cost and low production efficiency in the prior art. Description of the Drawings

[0019] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0020] Figure 1 is an assembly schematic diagram of an automatic sampling device in the present utility model;

[0021] Figure 2 is another assembly schematic diagram of an automatic sampling device in the present utility model;

[0022] Figure 3 is an assembly schematic diagram of the sampling module in the present utility model;

[0023] Figure 4 is a sectional view of the sampling module in the present utility model;

[0024] Figure 5 is an assembly schematic diagram of the sampling head in the present utility model;

[0025] Figure 6 It is a sectional view of the sampling head in the present utility model. Detailed implementation manners

[0026] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all the connection / linkage relationships involved in the patent do not simply refer to the direct connection of components, but refer to the more optimal linkage structure that can be formed by adding or reducing linkage accessories according to the specific implementation situation. Each technical feature in the creation of the present utility model can be interactively combined without conflicting with each other. Refer to Figures 1-6 .

[0027] An automatic sampling device includes a mounting frame 1, a sampling guiding member, a transverse movement driving module and a backing plate driving device arranged on the mounting frame 1. A sampling module 2 is arranged on the sampling guiding member. The acting end of the transverse movement driving module is connected to the sampling module 2 and can drive the sampling module 2 to move on the sampling guiding member. The sampling module 2 includes a sampling driving device and a sampling head 21 arranged at the output end of the sampling driving device. The sampling head 21 is a negative pressure sampling head, and the sampling driving member is used to drive the sampling head 21 to move to realize the sampling function; a sampling backing plate 31 is arranged at the output end of the backing plate driving device, and the backing plate driving device is used to drive the sampling backing plate 31 to approach or move away from the film material to be sampled; it further includes a pressing belt module 7, and there are two groups of the pressing belt modules 7, and the two groups of pressing belt modules 7 are used to press the film materials on the front and rear sides of the sampling module 2 along the film material running direction.

[0028] In specific implementation, first, the front and rear sides of the sampling point of the film material are pressed by the pressing belt module 7 without the need to stop the equipment. Then, the sampling backing plate 31 is driven by the backing plate driving device to approach the film material to provide a supporting function for the sampling work; synchronously, the sampling module 2 is driven by the transverse movement driving module to slide on the sampling guiding member to a preset position. After the sampling module 2 arrives at the position, the sampling head 21 is driven by the sampling driving device in the sampling module 2 to move towards the sampling point of the film material, and finally, a film material sample is obtained on the film material by using the sampling head 21. After sampling, the above process is reset in the reverse direction to complete the sampling work. The whole sampling process can realize automatic control without stopping the machine, effectively reducing the operation difficulty and labor cost, and improving the work efficiency.

[0029] In this embodiment, the transverse movement driving module includes a transverse movement driving motor 41 and a transverse movement lead screw nut pair 42 mounted on the mounting bracket 1. The output end of the transverse movement driving motor 41 is connected to one end of the lead screw of the transverse movement lead screw nut pair 42 and can drive the lead screw of the transverse movement lead screw nut pair 42 to rotate. The nut of the transverse movement lead screw nut pair 42 is directly or indirectly connected to the sampling module 2. The transverse movement driving motor 41 can drive the sampling module 2 to move on the sampling guiding member through the transverse movement lead screw nut pair 42. In addition, both ends of the lead screw of the transverse movement lead screw nut pair 42 are mounted on the mounting bracket 1 through lead screw mounting seats and lead screw mounting bearings. The output end of the transverse movement driving motor 41 is connected to one end of the lead screw of the transverse movement lead screw nut pair 42 through a coupling. The transverse movement driving motor 41 drives the sampling module 2 to move on the sampling guiding member, thereby adjusting the position of the sampling module 2 in the width direction of the film material and realizing the sampling work at different positions in the width direction of the film material.

[0030] In this embodiment, the transverse movement driving motor 41 serves as the driving force for the transverse movement of the sampling module 2. In some other embodiments, other driving devices that meet the requirements can also be used as the transverse movement driving module, such as electric cylinders, linear motors, etc., which can be appropriately selected according to needs and will not be elaborated here.

[0031] In this embodiment, the sampling guiding member is a sampling guide rail 5 provided on the mounting bracket 1. The sampling module 2 is arranged on the sampling guide rail 5 and can slide on the sampling guide rail 5. Further, the sampling module 2 is mounted on the sampling guide rail 5 through a guide rail slider, and the sampling guide rail 5 is a linear guide rail. In other embodiments, when meeting the requirements, devices such as guide grooves and guide rods that can realize the guiding function can also be used as the sampling guiding member.

[0032] Further, a position sensor 6 is provided on the mounting bracket 1. The position sensor 6 is used to sense whether the sampling head 21 reaches the position. Specifically, there are two position sensors 6, and the two position sensors 6 are correspondingly arranged at both ends of the lead screw of the lead screw nut pair 42 to sense the positions at both ends of the sampling module 2. When the sampling head 21 slides to both ends and is sensed by the position sensor 6, the position sensor 6 emits a signal. After receiving the signal, the control device of the equipment controls the transverse movement driving motor 41 to stop moving, preventing the sampling head 21 from exceeding the preset range and ensuring the normal operation of the equipment.

[0033] In this technical solution, the backing plate driving device includes a backing plate driving cylinder 32. The output end of the backing plate driving cylinder 32 is provided with a backing plate mounting plate 33. The sampling backing plate 31 is arranged on the backing plate mounting plate 33. The backing plate driving cylinder 32 is installed on the mounting frame 1 through a backing plate cylinder seat 321. In other embodiments, a device capable of realizing the driving function, such as an electric cylinder or a motor screw module, can also be used to replace the backing plate driving cylinder 32.

[0034] Further, the driving module includes a sampling sliding seat 22 mounted on the sampling guiding member, the sampling driving device is disposed on the sampling sliding seat 22, the sampling head 21 includes a sampling head shank 211 and a sampling head upper die 212 connected to one end of the sampling head shank 211. A sampling head spring top 215 and a compression spring 216 are arranged inside the sampling head upper die 212. The sampling head shank 211 is directly or indirectly mounted on the sampling sliding seat 22 through a linear bearing 213. The output end of the sampling driving device is connected to the other end of the sampling head shank 211 and can drive the sampling head upper die 212 to move along the guiding direction of the linear bearing 213 through the sampling head shank 211. An inner cavity 2121 is formed inside the sampling head upper die 212, and the sampling head spring top 215 and the compression spring 216 are installed in the inner cavity 2121. Two ends of the compression spring 216 respectively abut against the inner wall of the sampling spring top 215 and the bottom of the inner cavity 2121. Under the elastic force of the compression spring 216, the top part of the sampling head spring top 215 pops out of the inner cavity 2121. A limiting block accommodating cavity 2122 is further arranged inside the sampling head upper die 212, a limiting block 217 is arranged inside the limiting block accommodating cavity 2122. An inner end of the sampling head spring top 215 has a connecting column 2151. The connecting column 2151 passes through a through hole between the inner cavity 2121 and the limiting block accommodating cavity 2122 and is fixedly connected to the limiting block 217. The limiting block 217 can limit the dimension of the sampling head spring top 215 extending out of the inner cavity 2121. During application, when the sampling head 21 presses against the film material for sampling, the sampling head upper die 212 presses downwards, and the sampling head spring top 215 will compress the compression spring 216 and retract into the inner cavity 2121. At this time, a sharp blade along the inner edge of the mouth of the inner cavity 2121 of the sampling head upper die 212 can smoothly cut off the film material sample. Meanwhile, an air pipe joint 214 communicating with the inner cavity is arranged on the side of the sampling head upper die 212. The air pipe joint 214 is communicated with a vacuum generator 8 on the mounting rack 1 through a pipeline, and a negative pressure is generated in the inner cavity 2121 by the vacuum generator 8. Since a negative pressure adsorption hole is formed on the sampling head spring top 215, after the negative pressure is generated in the inner cavity 2121, the sampling head spring top 215 adsorbs the obtained film material sample through its negative pressure adsorption hole. In this way, when the sampling head 21 leaves the film material, the negative pressure adsorption hole on the sampling head spring top 215 will adsorb the film material sample on the sampling head 21 and prevent it from falling off.

[0035] In this embodiment, the sampling driving device includes a sampling driving cylinder 23 arranged on the sampling sliding seat 22. The output shaft of the sampling driving cylinder 23 is connected to the sampling head shank 211. The sampling driving cylinder 23 is installed on the sampling sliding seat 22 through a sampling cylinder seat 231. In other embodiments, when meeting the requirements, other devices such as an oil cylinder or an electric cylinder can also be used as the sampling driving device.

[0036] Furthermore, the mounting rack 1 includes two mounting rack side plates 11 and a side plate connecting plate 12 connected between the two mounting rack side plates 11. There is also a roller 13 arranged between the two mounting rack side plates 11. There are two rollers 13 and they are respectively arranged on the front and rear sides of the sampling module 2 along the film material running direction.

[0037] In this embodiment, the pressing belt module 7 includes a pressing belt driving cylinder 71 and a pressing belt platform 72. A pressing belt rod 73 is arranged at the output end of the pressing belt driving cylinder 71. The film material passes through between the pressing belt rod 73 and the pressing belt platform 72. The pressing belt driving cylinder 71 can drive the pressing belt rod 73 to press towards the pressing belt platform 72 to press the film material tightly between the pressing belt platform 72 and the pressing belt rod 73.

[0038] Based on the above automatic sampling device, the present utility model also provides:

[0039] A coating machine, which includes the above automatic sampling device.

[0040] The present utility model also provides:

[0041] An automatic sampling method, including the following steps:

[0042] Press the front and rear sides of the sampling point on the film material along the running direction through the pressing belt module 7, so that the sampling point of the film material is in a static state;

[0043] Use the backing plate driving device to drive the sampling backing plate 31 close to the film material and abut against one side of the film material;

[0044] Drive the sampling module 2 to move to the sampling position on the sampling guide through the transverse movement driving module; the sampling driving device in the sampling module 2 drives the sampling head 21 to press towards the sampling backing plate and drive a film material sample on the film material;

[0045] After the sampling head 21 obtains the film material sample, adsorb the film material sample through negative pressure. The sampling driving device, the transverse movement driving device, the backing plate driving device and the pressing belt module 7 are reset in sequence to complete the film material sampling work.

[0046] The above is a specific description of the preferred embodiment of the present utility model. However, the present utility model is not limited to the described embodiment. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An automatic sampling device, characterized in that: The invention comprises a mounting frame (1) and a sampling guide, a transverse driving module and a pad driving device arranged on the mounting frame (1); a sampling module (2) is arranged on the sampling guide; an action end of the transverse driving module is connected to the sampling module (2) and can drive the sampling module (2) to move on the sampling guide; the sampling module (2) comprises a sampling driving device and a sampling head (21) arranged at the output end of the sampling driving device; the sampling head (21) is a negative pressure sampling head; the sampling driving member is used to drive the sampling head (21) to move to realize the sampling function; a sampling pad (31) is arranged at the output end of the pad driving device; the pad driving device is used to drive the sampling pad (31) to approach or move away from a membrane material to be sampled.

2. An automatic sampling device according to claim 1, characterized in that: The transverse drive module comprises a transverse drive motor (41) and a transverse screw nut pair (42) mounted on the mounting frame (1); the output end of the transverse drive motor (41) is connected to one end of the screw of the transverse screw nut pair (42) and can drive the screw of the transverse screw nut pair (42) to rotate; the nut of the transverse screw nut pair (42) is directly or indirectly connected to the sampling module (2); the transverse drive motor (41) can drive the sampling module (2) to move on the sampling guide through the transverse screw nut pair (42); The two ends of the screw of the transverse screw nut pair (42) are mounted on the mounting frame (1) via a screw mounting seat and a screw mounting bearing, and the output end of the transverse driving motor (41) is connected to one end of the screw of the transverse screw nut pair (42) via a coupling; The sampling guide is a sampling guide rail (5) arranged on the mounting frame (1), and the sampling module (2) is arranged on the sampling guide rail (5) and can slide on the sampling guide rail (5).

3. An automatic sampling device according to claim 1, characterized in that: The mounting frame (1) is provided with an in-place sensor (6), and the in-place sensor (6) is used to sense whether the sampling head (21) is in place.

4. An automatic sampling device according to claim 1, characterized in that: The pad driving device comprises a pad driving cylinder (32), the output end of the pad driving cylinder (32) is provided with a pad mounting plate (33), the sampling pad (31) is arranged on the pad mounting plate (33), and the pad driving cylinder (32) is mounted on the mounting frame (1) via a pad cylinder seat (321).

5. The automatic sampling device according to claim 1, characterized in that: The driving module group comprises a sampling sliding seat (22) mounted on the sampling guide member, the sampling driving device is arranged on the sampling sliding seat (22), the sampling head (21) comprises a sampling head die handle (211) and a sampling head upper die (212) connected to one end of the sampling head die handle (211), a sampling head spring top (215) and a compression spring (216) are arranged inside the sampling head upper die (212), the sampling head die handle (211) is directly or indirectly mounted on the sampling sliding seat (22) through a linear bearing (213), the output end of the sampling driving device is connected to the other end of the sampling head die handle (211), and can drive the sampling head upper die (212) to move along the guide direction of the linear bearing (213) through the sampling head die handle (211).

6. An automatic sampling device according to claim 5, characterized in that: The sampling drive device comprises a sampling drive cylinder (23) arranged on the sampling sliding seat (22), the output shaft of the sampling drive cylinder (23) is connected to the sampling head mold handle (211), and the sampling drive cylinder (23) is installed on the sampling sliding seat (22) through a sampling cylinder seat (231).

7. An automatic sampling device according to claim 1, characterized in that: The mounting frame (1) comprises two mounting frame side panels (11) and a side panel connecting plate (12) connected between the two mounting frame side panels (11); a rod (13) is also provided between the two mounting frame side panels (11); the rod (13) has two rods and is respectively provided at the front and rear sides of the sampling module (2) along the membrane material routing direction.

8. An automatic sampling device according to any one of claims 1 to 7, characterized in that: It also includes a belt pressing module (7), which has two groups. The two groups of belt pressing modules (7) are used to press the film materials on both sides of the sampling module (2) along the film material routing direction.

9. An automatic sampling device according to claim 8, characterized in that: The belt pressing module (7) comprises a belt pressing driving cylinder (71) and a belt pressing platform (72). A belt pressing rod (73) is arranged at the output end of the belt pressing driving cylinder (71). The film material passes between the belt pressing rod (73) and the belt pressing platform (72). The belt pressing driving cylinder (71) can drive the belt pressing rod (73) to press against the belt pressing platform (72) so as to press the film material tightly between the belt pressing platform (72) and the belt pressing rod (73).

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