An indirect separation primer device for lithium battery contact sheets

Abstract

The present invention discloses an indirect detachable primer coating device for lithium battery contact sheets, comprising a mounting mechanism and a transfer platform. The transfer platform is movably mounted on the periphery of the mounting mechanism. A fixed frame is movably mounted on the top of the transfer platform. A coating mechanism, a drying mechanism, an adjustment mechanism, and a discharge mechanism are movably mounted on the periphery of the transfer platform. The coating mechanism, drying mechanism, and discharge mechanism are all located on the periphery of the adjustment mechanism, and the adjustment mechanism is provided in three groups corresponding to the coating mechanism, drying mechanism, and discharge mechanism. The mounting mechanism comprises a mounting base, a connecting platform, and a connecting rod. The connecting platform is movably mounted on the top of the mounting base. The connecting rod is fixedly mounted on the periphery of the connecting platform. An installation chamber is provided inside the mounting base. The present invention relates to the field of primer coating technology for lithium battery contact sheets. The indirect detachable primer coating device for lithium battery contact sheets has a continuous and closed-loop automatic primer coating process production line with high processing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery contact sheet primer coating, in particular to an indirect separation type primer coating device for lithium battery contact sheets. Background Art

[0002] The existing primer coating device for lithium battery contact pieces cannot form a continuous and closed-loop automatic primer processing line, and the processing efficiency is low. For example, Chinese patent application number CN202110504623.2 discloses an indirect separation primer coating device for lithium battery contact pieces. This invention realizes that when the lithium battery contact pieces are primered, the surface of the contact piece can be completely primered without the need for a clamp, and before drying after primer coating, the liquid nodules on the surface of the contact piece are accumulated to one side by tilting, thereby facilitating cleaning thereof, and then drying, effectively ensuring that the quality of the contact piece meets the standards. However, the above-mentioned indirect separation primer coating device for lithium battery contact pieces cannot form a continuous and closed-loop automatic primer processing line. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the present invention provides an indirect separation primer coating device for lithium battery contact sheets, which solves the problem that the existing primer coating device for lithium battery contact sheets cannot have a continuous and closed-loop automatic primer processing production line.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a lithium battery contact sheet indirect separation type primer coating device, comprising a mounting mechanism and a transfer platform, the transfer platform being movably mounted on the periphery of the mounting mechanism, the top of the transfer platform being movably provided with a fixing frame, the periphery of the transfer platform being movably provided with a coating mechanism, a drying mechanism, an adjustment mechanism, and a discharge mechanism, the coating mechanism, the drying mechanism, and the discharge mechanism being all located on the periphery of the adjustment mechanism, and the adjustment mechanism being provided in three groups corresponding to the coating mechanism, the drying mechanism, and the discharge mechanism;

[0005] The mounting mechanism includes a mounting base, a connecting platform and a connecting rod, the connecting platform is movably arranged on the top of the mounting base, the connecting rod is fixedly arranged on the outer periphery of the connecting platform, an mounting chamber is opened inside the mounting base, a driving motor, a first electric push rod and a second electric push rod are fixedly installed inside the mounting chamber, and the first electric push rod and the second electric push rod are respectively arranged on both sides of the driving motor, one end of the first electric push rod is fixedly provided with a magnetic lock, a support shaft is rotatably provided on the top of the mounting base, and the support shaft is fixedly provided between the connecting platform and the driving motor;

[0006] The top of the transfer platform is provided with a support groove, and the support grooves are arranged in four groups in a cross-shaped distribution. Both sides of the support grooves are connected with a slide groove, and the slide groove is provided inside the transfer platform. A support seat is slidably provided inside the support groove, and both ends of the support seat are rotatably connected to a sliding shaft, and the sliding shaft is slidably provided inside the corresponding slide groove;

[0007] The bottom of the fixing frame is connected to the placement frame by screws. The placement frame includes a fixing frame and support bars. The support bars are fixedly arranged in groups corresponding to the bottom of the fixing frame, and the support bars are arranged in an L shape. One end of the fixing frame is fixedly connected to an extension rod, and one end of the extension rod is fixedly provided with a push plate.

[0008] The adjustment mechanism includes a support ring, a telescopic rod and a third electric push rod. The telescopic rod is provided in two groups corresponding to the bottom of one end and the middle bottom of the support ring. The third electric push rod is installed at the bottom of the other end of the support ring.

[0009] The unloading mechanism includes an extension platform, a transmission plate and an extension piece. The transmission plate is slidably arranged on the top of the extension platform. Two groups of extension pieces are movably arranged on both sides of the extension platform, and the extension piece and the transmission plate are fixedly connected. A ball screw is fixedly installed on the top of the extension platform. A screw hole is opened in the middle of the transmission plate, and the transmission plate and the ball screw are connected through the screw hole. An ejection piece is fixed on the end of the extension piece away from the transmission plate.

[0010] Preferably, the paint mechanism includes a paint bucket and a collecting platform, the collecting platform is tilted on one side of the top of the paint bucket, and one end of the collecting platform is located above the paint bucket.

[0011] Preferably, the drying mechanism includes a drying rack and a dryer, a drying chamber is opened on one side of the drying rack, and the dryer is fixedly installed at the bottom of the drying chamber.

[0012] Preferably, the first electric push rod is correspondingly arranged between the unloading mechanism, the second electric push rod is correspondingly arranged between the coating mechanism, and the magnetic lock is adsorbed and fixed to the push plate.

[0013] Preferably, the connecting rod is arranged in a Z shape, and one end of the connecting rod is fixed to the bottom of the transfer platform.

[0014] Preferably, the placement rack is movably arranged inside the support groove, and the extension rod movably passes through the interior of the support seat.

[0015] Preferably, the placement rack is movably arranged above the paint bucket, and the placement rack is slidably arranged on the top of the collecting platform.

[0016] Preferably, the placement rack is movably arranged inside the drying chamber, and the placement rack is located above the dryer.

[0017] Preferably, the extension rod is movably arranged above the support ring, and the support ring is arranged in an arc shape.

[0018] Preferably, the extension piece is movably arranged between two adjacent groups of support bars, and the end of the ejection piece away from the extension piece is pointed.

[0019] Beneficial effects

[0020] The present invention provides an indirect separation-type primer coating device for lithium battery contact sheets. Compared with the prior art, it has the following advantages:

[0021] 1. The indirect separation type primer coating device for lithium battery contact pieces, by placing the contact piece on the support bar, starting the driving motor to drive the connecting platform to rotate through the support shaft, and then driving the transfer platform to rotate through the connecting rod, rotating the transfer platform to transfer the fixed frame to the unloading mechanism, and the extension rod is transferred from the horizontal state of the support ring at the drying mechanism to the support ring at the unloading mechanism, turning on the ball screw can drive the transmission plate to slide along the top of the extension table, and at the same time drive the extension piece to be inserted between multiple groups of support bars, and eject the contact piece from the support bar through the ejection piece to facilitate automatic unloading, the first electric push rod drives the magnetic lock to contact the push plate, and starts the magnetic lock to adsorb and fix the push plate and play a supporting role at one end, at this time the support ring at the unloading mechanism drops, and the first electric push rod drives the fixed frame to retract into the support groove, and finally rotates the fixed frame to the loading position, and then performs continuous primer processing, and the overall automatic primer processing line with continuous and closed-loop processing efficiency is high;

[0022] 2. The indirect separation primer coating device for the lithium battery contact piece is configured by moving the fixed frame to the position corresponding to the coating mechanism, starting the second electric push rod to push the fixed frame to move through the push plate, and the support seat drives the sliding shaft to one end of the slide slot. Starting the third electric push rod there can drive the support ring to descend, which can support the inclined extension rod. At this time, the support bar enters the interior of the paint bucket, and the support ring drives the support ring to rise and fall cyclically, which can dip the contact piece on the support bar. The support ring supports the extension rod to a horizontal state, and the transfer platform is continuously rotated to transfer the placement frame to the collection platform for rest, so that the dripping paint can be recovered into the paint bucket.

[0023] 3. The indirect separation primer coating device for lithium battery contact pieces is designed to transfer the fixed frame to the inside of the drying chamber by rotating the transfer platform, and the extension rod is transferred from the horizontal state of the support ring at the coating mechanism to the support ring at the drying mechanism. The dryer is turned on to dry the contact pieces on the support bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic top view of the overall structure of the present invention;

[0025] Figure 2 Schematic diagram of the cross-sectional structure of the mounting mechanism of the present invention;

[0026] Figure 3 It is a schematic diagram of the fixing frame structure of the present invention;

[0027] Figure 4 It is a schematic top view of the placement rack structure of the present invention;

[0028] Figure 5 Schematic diagram of the coating mechanism of the present invention;

[0029] Figure 6 It is a schematic diagram of the drying mechanism of the present invention;

[0030] Figure 7 It is a schematic top view of the adjustment mechanism of the present invention;

[0031] Figure 8 It is a top view schematic diagram of the unloading mechanism of the present invention;

[0032] Figure 9 Schematic diagram of the extension sheet structure of the present invention;

[0033] Figure 10 This is a schematic diagram of the blanking position of the fixing frame of the present invention;

[0034] Figure 11 Schematic diagram of the dipping position of the fixing frame of the present invention.

[0035] In the figure: 1. Mounting mechanism; 11. Mounting base; 111. Mounting chamber; 112. Driving motor; 113. Support shaft; 114. First electric push rod; 115. Second electric push rod; 116. Magnetic lock; 12. Connecting platform; 13. Connecting rod; 2. Transfer platform; 21. Support groove; 22. Slide groove; 23. Support seat; 24. Sliding shaft; 3. Fixing frame; 31. Placement frame; 311. Fixing frame; 312. Support Support bar; 32. Extension rod; 33. Push plate; 4. Paint mechanism; 41. Paint bucket; 42. Collecting table; 5. Drying mechanism; 51. Drying rack; 52. Drying chamber; 53. Dryer; 6. Adjustment mechanism; 61. Support ring; 62. Telescopic rod; 63. Third electric push rod; 7. Unloading mechanism; 71. Extension table; 711. Ball screw; 72. Transmission plate; 721. Screw hole; 73. Extension piece; 731. Ejector piece. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] See also Figure 1-10The present invention provides a technical solution: an indirect separation type primer coating device for lithium battery contact pieces, comprising a mounting mechanism 1 and a transfer platform 2, the transfer platform 2 being movably sleeved on the periphery of the mounting mechanism 1, a fixing frame 3 being movably provided on the top of the transfer platform 2, a coating mechanism 4, a drying mechanism 5, an adjusting mechanism 6 and a discharging mechanism 7 being movably provided on the periphery of the transfer platform 2, the coating mechanism 4, the drying mechanism 5 and the discharging mechanism 7 being all located on the periphery of the adjusting mechanism 6, and the adjusting mechanism 6 being provided in three groups corresponding to the coating mechanism 4, the drying mechanism 5 and the discharging mechanism 7; the mounting mechanism 1 comprises a mounting base 11, a connecting platform 12 and a connecting rod 13, the connecting platform 12 being movably provided on the top of the mounting base 11, and the connecting rod 13 being fixedly provided On the periphery of the connecting platform 12, an installation chamber 111 is opened inside the mounting base 11, and a driving motor 112, a first electric push rod 114 and a second electric push rod 115 are fixedly installed inside the mounting chamber 111, and the first electric push rod 114 and the second electric push rod 115 are respectively arranged on both sides of the driving motor 112, and one end of the first electric push rod 114 is fixedly provided with a magnetic lock 116. A support shaft 113 is rotatably provided on the top of the mounting base 11, and the support shaft 113 is fixedly provided between the connecting platform 12 and the driving motor 112; a support groove 21 is opened on the top of the transfer platform 2, and the support grooves 21 are arranged in four groups in a cross distribution, and both sides of the support grooves 21 are connected with sliding The cam 22 is provided with a support seat 23 for sliding inside the support groove 21, and both ends of the support seat 23 are rotatably connected to the sliding shaft 24, and the sliding shaft 24 is slidably arranged inside the corresponding cam 22; the bottom of the fixed frame 3 is connected to the placement frame 31 by screw disassembly, and the placement frame 31 includes a fixed frame 311 and a support bar 312. The support bar 312 is fixedly provided with several groups corresponding to the bottom of the fixed frame 311, and the support bar 312 is L-shaped. One end of the fixed frame 3 is fixedly connected to the extension rod 32, and one end of the extension rod 32 is fixedly provided with a push plate 33; the adjustment mechanism 6 includes a support ring 61, a telescopic rod 62 and a third electric push rod 63. The telescopic rod Two groups are set at the bottom of one end and the middle bottom of 62 corresponding to the support ring 61, and the third electric push rod 63 is installed at the bottom of the other end of the support ring 61; the unloading mechanism 7 includes an extension platform 71, a transmission plate 72 and an extension piece 73, the transmission plate 72 is slidably arranged on the top of the extension platform 71, and two groups of extension pieces 73 are movably set on both sides of the extension platform 71, and the extension piece 73 is fixedly connected to the transmission plate 72. A ball screw 711 is fixedly installed on the top of the extension platform 71, a screw hole 721 is opened in the middle of the transmission plate 72, and the transmission plate 72 and the ball screw 711 are connected for transmission through the screw hole 721, and a ejection piece 731 is fixed on the end of the extension piece 73 away from the transmission plate 72.The first electric push rod 114 is correspondingly arranged between the unloading mechanism 7, the second electric push rod 115 is correspondingly arranged between the coating mechanism 4, the magnetic lock 116 is adsorbed and fixed to the push plate 33, the connecting rod 13 is arranged in a Z shape, and one end of the connecting rod 13 is fixed to the bottom of the transfer platform 2, the placement frame 31 is movably arranged inside the support groove 21, the extension rod 32 is movably passed through the inside of the support seat 23, the extension rod 32 is movably arranged above the support ring 61, and the support ring 61 is arranged in an arc shape, the extension piece 73 is movably arranged between two adjacent groups of support bars 312, and the ejection piece 731 is pointed at one end away from the extension piece 73. Place the contact piece on the support bar 312, start the drive motor 112 to drive the connecting platform 12 to rotate through the support shaft 113, and then drive the transfer platform 2 to rotate through the connecting rod 13, and continue to rotate the transfer platform 2 to transfer the fixed frame 3 to the unloading mechanism 7. The extension rod 32 is transferred from the horizontal state of the support ring 61 at the drying mechanism 5 to the support ring 61 at the unloading mechanism 7. At this time, the position of the fixed frame 3 is as follows. Figure 10 As shown, opening the ball screw 711 can drive the transmission plate 72 to slide above the extension platform 71, and at the same time drive the extension piece 73 to insert between multiple groups of support bars 312, and push the contact piece from the support bar 312 through the ejection piece 731 to facilitate automatic unloading. The first electric push rod 114 drives the magnetic lock 116 to contact the push plate 33, and the magnetic lock 116 is started to adsorb and fix the push plate 33 and play a supporting role at one end. At this time, the support ring 61 at the unloading mechanism 7 descends, and the first electric push rod 114 drives the fixing frame 3 to be retracted into the support groove 21, and finally the fixing frame 3 is rotated to the loading position.

[0038] See also Figure 1 、 5 11, the coating mechanism 4 includes a coating bucket 41 and a collecting platform 42, the collecting platform 42 is tilted and arranged on one side of the top of the coating bucket 41, and one end of the collecting platform 42 is located above the coating bucket 41, and the placement rack 31 is movably arranged above the coating bucket 41, and the placement rack 31 is slidably arranged on the top of the collecting platform 42. Move the fixed frame 3 to the corresponding position of the coating mechanism 4, as shown in the attached figure. Figure 11 , starting the second electric push rod 115 can push the fixed frame 3 to move through the push plate 33, and the support seat 23 drives the sliding shaft 24 to move to one end of the slide groove 22. Starting the third electric push rod 63 there can drive the support ring 61 to descend, which can support the inclined extension rod 32. At this time, the support bar 312 enters the interior of the paint bucket 41, and the support ring 61 drives the support ring 61 to rise and fall cyclically, so that the contact piece on the support bar 312 can be dipped and coated. The support ring 61 supports the extension rod 32 to a horizontal state, and continues to rotate the transfer platform 2 to transfer the placement rack 31 to the collection platform 42 for stationary state, so that the dripping paint can be recovered into the paint bucket 41.

[0039] See also Figure 1 and 6The drying mechanism 5 includes a drying rack 51 and a dryer 53. A drying chamber 52 is defined on one side of the drying rack 51. The dryer 53 is fixedly mounted at the bottom of the drying chamber 52. The placement rack 31 is movably mounted within the drying chamber 52 and is positioned above the dryer 53. The transfer platform 2 is further rotated to move the fixed rack 3 into the drying chamber 52. The extension rod 32 is horizontally moved from the support ring 61 of the coating mechanism 4 to the support ring 61 of the drying mechanism 5. The dryer 53 is then turned on to dry the contact pieces on the support bars 312.

[0040] During operation, the position opposite to the drying mechanism 5 is the loading position. The contact piece is placed on the support bar 312, and the driving motor 112 is started to drive the connecting platform 12 to rotate through the supporting shaft 113, and then the transfer platform 2 is driven to rotate through the connecting rod 13, and the fixing frame 3 is moved to the position corresponding to the coating mechanism 4, as shown in the attached figure. Figure 11 , start the second electric push rod 115 to push the fixed frame 3 to move through the push plate 33, the support seat 23 drives the sliding shaft 24 to move to one end of the slide 22, and start the third electric push rod 63 there to drive the support ring 61 to descend, which can support the inclined extension rod 32. At this time, the support bar 312 enters the interior of the paint bucket 41, and the support ring 61 drives the support ring 61 to rise and fall cyclically, so as to dip the contact piece on the support bar 312. The support ring 61 supports the extension rod 32 to a horizontal state, and continues to rotate the transfer platform 2 to transfer the placement rack 31 to the collection platform 42 is placed on the paint barrel 41, and the dripping paint can be recovered. The transfer platform 2 is continued to rotate to transfer the fixed frame 3 to the inside of the drying chamber 52. The extension rod 32 is horizontally transferred from the support ring 61 at the paint mechanism 4 to the support ring 61 at the drying mechanism 5. The dryer 53 is turned on to dry the contact piece on the support bar 312. The transfer platform 2 is continued to rotate to transfer the fixed frame 3 to the unloading mechanism 7. The extension rod 32 is horizontally transferred from the support ring 61 at the drying mechanism 5 to the support ring 61 at the unloading mechanism 7. At this time, the position of the fixed frame 3 is as shown in FIG. Figure 10 As shown, opening the ball screw 711 can drive the transmission plate 72 to slide above the extension platform 71, and at the same time drive the extension piece 73 to insert between multiple groups of support bars 312, and push the contact piece from the support bar 312 through the ejection piece 731 to facilitate automatic unloading. The first electric push rod 114 drives the magnetic lock 116 to contact the push plate 33, and the magnetic lock 116 is started to adsorb and fix the push plate 33 and play a supporting role at one end. At this time, the support ring 61 at the unloading mechanism 7 descends, and the first electric push rod 114 drives the fixing frame 3 to be retracted into the support groove 21, and finally the fixing frame 3 is rotated to the loading position. The above actions are repeated to perform continuous primer processing. The overall automatic primer processing process production line has a closed loop and high processing efficiency.

[0041] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A lithium battery contact sheet indirect separation primer device, comprising a mounting mechanism (1) and a transfer platform (2), wherein the transfer platform (2) is movably sleeved on the periphery of the mounting mechanism (1), characterized in that: The top of the transfer platform (2) is movably provided with a fixing frame (3), and the periphery of the transfer platform (2) is movably provided with a coating mechanism (4), a drying mechanism (5), an adjusting mechanism (6) and a discharging mechanism (7). The coating mechanism (4), the drying mechanism (5) and the discharging mechanism (7) are all located on the periphery of the adjusting mechanism (6), and the adjusting mechanism (6) is provided in three groups corresponding to the coating mechanism (4), the drying mechanism (5) and the discharging mechanism (7); The mounting mechanism (1) comprises a mounting base (11), a connecting platform (12) and a connecting rod (13), wherein the connecting platform (12) is movably arranged on the top of the mounting base (11), and the connecting rod (13) is fixedly arranged on the outer periphery of the connecting platform (12); an mounting chamber (111) is provided inside the mounting base (11), and a driving motor (112), a first electric push rod (114) and a second electric push rod (115) are fixedly installed inside the mounting chamber (111), and the first electric push rod (114) and the second electric push rod (115) are respectively arranged on both sides of the driving motor (112); a magnetic lock (116) is fixedly provided at one end of the first electric push rod (114); a supporting shaft (113) is rotatably provided on the top of the mounting base (11), and the supporting shaft (113) is fixedly arranged between the connecting platform (12) and the driving motor (112); The top of the transfer platform (2) is provided with a support groove (21), and the support grooves (21) are arranged in four groups in a cross-shaped distribution. Both sides of the support groove (21) are connected with a slide groove (22), and the slide groove (22) is provided inside the transfer platform (2). A support seat (23) is slidably provided inside the support groove (21), and both ends of the support seat (23) are rotatably connected with a sliding shaft (24), and the sliding shaft (24) is slidably provided inside the corresponding slide groove (22); The bottom of the fixing frame (3) is connected to a placement frame (31) by screws, and the placement frame (31) includes a fixing frame (311) and a support bar (312). The support bar (312) is fixedly arranged in a plurality of groups corresponding to the bottom of the fixing frame (311), and the support bar (312) is arranged in an L shape. One end of the fixing frame (3) is fixedly connected to an extension rod (32), and one end of the extension rod (32) is fixedly provided with a push plate (33). The adjustment mechanism (6) comprises a support ring (61), a telescopic rod (62) and a third electric push rod (63), wherein two groups of the telescopic rod (62) are provided corresponding to the bottom of one end and the middle bottom of the support ring (61), and the third electric push rod (63) is installed at the bottom of the other end of the support ring (61); The unloading mechanism (7) includes an extension platform (71), a transmission plate (72) and an extension piece (73), wherein the transmission plate (72) is slidably arranged on the top of the extension platform (71), and two groups of extension pieces (73) are movably arranged on both sides of the extension platform (71), and the extension piece (73) and the transmission plate (72) are fixedly connected, a ball screw (711) is fixedly installed on the top of the extension platform (71), a screw hole (721) is opened in the middle of the transmission plate (72), and the transmission plate (72) and the ball screw (711) are transmission-connected through the screw hole (721), and an ejection piece (731) is fixedly provided on one end of the extension piece (73) away from the transmission plate (72); The placement rack (31) is movably arranged inside the support groove (21), the extension rod (32) is movably passed through the inside of the support seat (23), the extension rod (32) is movably arranged above the support ring (61), and the support ring (61) is arranged in an arc shape.

2. The indirect separation type primer coating device for lithium battery contact sheets according to claim 1, characterized in that: The coating mechanism (4) comprises a coating bucket (41) and a collecting platform (42), wherein the collecting platform (42) is arranged obliquely on one side of the top of the coating bucket (41), and one end of the collecting platform (42) is located above the coating bucket (41).

3. The indirect separation type primer coating device for lithium battery contact sheets according to claim 1, characterized in that: The drying mechanism (5) comprises a drying rack (51) and a dryer (53); a drying chamber (52) is provided on one side of the drying rack (51); and the dryer (53) is fixedly mounted on the bottom of the drying chamber (52).

4. The indirect separation type primer coating device for lithium battery contact sheets according to claim 1, characterized in that: The first electric push rod (114) is correspondingly arranged between the unloading mechanism (7), the second electric push rod (115) is correspondingly arranged between the coating mechanism (4), and the magnetic lock (116) is fixed to the push plate (33) by adsorption.

5. The indirect separation type primer coating device for lithium battery contact sheets according to claim 1, characterized in that: The connecting rod (13) is arranged in a Z shape, and one end of the connecting rod (13) is fixed to the bottom of the transfer platform (2).

6. The indirect separation type primer coating device for lithium battery contact sheets according to claim 1, characterized in that: The placement rack (31) is movably arranged above the paint bucket (41), and the placement rack (31) is slidably arranged on the top of the collection platform (42).

7. The indirect separation type primer coating device for lithium battery contact sheets according to claim 6, characterized in that: The placement rack (31) is movably arranged inside the drying chamber (52), and the placement rack (31) is located above the dryer (53).

8. The indirect separation type primer coating device for lithium battery contact sheets according to claim 1, characterized in that: The extension piece (73) is movably arranged between two adjacent groups of support bars (312), and one end of the ejection piece (731) away from the extension piece (73) is pointed.

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