A coating oven

Abstract

The application discloses a coating and baking machine, which comprises a coating machine, an oven and an elastic clamping chain system. The coating machine is used for coating ink on a substrate, the oven is used for drying the ink on the substrate, and the elastic clamping chain system is used for conveying the substrate from the coating machine to the oven. The elastic clamping chain system comprises a conveying chain, an opening clamping device and an elastic clamp. The elastic clamp comprises a mounting piece, a supporting piece and a clamping piece. The mounting piece is used for fixing the elastic clamp to the conveying chain. The supporting piece is fixedly installed on or integrally formed on the mounting piece. The clamping piece is elastically connected to the mounting piece or the supporting piece through a hinge shaft and is used for clamping the substrate in cooperation with the supporting piece. The clamping piece comprises a clamping arm and a driving arm. The clamping arm has a first tip. The clamping arm and the driving arm are located on two sides of the hinge shaft respectively. When the elastic clamp moves to the opening clamping position along with the conveying chain, the driving arm is driven to open the clamping arm. Through the improved elastic clamping chain system, the processing of a thin circuit substrate is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automation equipment, in particular to a coating and baking machine. BACKGROUND

[0002] In the field of automation equipment, there is a process for processing a board. For example, in the field of printed circuit board (PCB), it is necessary to perform ink coating and drying on the substrate of the PCB. These processes are completed by a coating and baking machine.

[0003] In the working process of the coating and baking machine, ink is first coated on the substrate, and then the substrate is clamped by a chain clamp system and transported to an oven for baking to dry the ink.

[0004] In the prior art, because the substrate is coated with ink, the clamps of the chain clamp system can only clamp the two side edges of the substrate. Due to the limited clamping space, the current clamps can only be used to clamp some thicker substrates. If the thickness of the substrate is too thin, the clamps cannot be clamped stably, and during the baking process, the substrate is easy to fall off from the clamps into the oven, causing damage to the substrate and the oven.

[0005] Therefore, the above problems existing in the prior art still need to be solved. SUMMARY

[0006] The main purpose of the present application is to provide a coating and baking machine, which aims to solve the problem that the coating and baking machine in the prior art cannot process thin substrates.

[0007] To achieve the above purpose, the present application provides a coating and baking machine, which comprises a coating machine, an oven and an elastic clamp chain system; the coating machine is used to coat ink on the substrate, the oven is used to dry the ink on the substrate, and the elastic clamp chain system is used to transport the substrate from the coating machine to the oven; the elastic clamp chain system comprises a conveying chain, an opening clamp device and an elastic clamp, the elastic clamp comprises a mounting piece, a supporting piece and a clamping piece, wherein the mounting piece is used to fix the elastic clamp to the conveying chain, the supporting piece is fixedly installed or integrally formed on the mounting piece, and the clamping piece is elastically connected to the mounting piece or the supporting piece through a hinge shaft and is used to clamp the substrate in cooperation with the supporting piece; the clamping piece comprises a clamping arm and a driving arm, and the clamping arm has a first tip; the clamping arm and the driving arm are located on the two sides of the hinge shaft respectively; when the elastic clamp moves to the opening clamp position with the conveying chain, the driving arm drives the clamping arm to open under the action of the opening clamp device.

[0008] Preferably, the supporting member comprises a connecting arm and a supporting arm, the connecting arm and the supporting arm are located on both sides of the hinge shaft, wherein the connecting arm is fixedly installed or integrally formed on the mounting member; the supporting arm is provided with a second tip, and the first tip and the second tip are oppositely arranged.

[0009] Preferably, the supporting member is provided with a avoiding part, the avoiding part is located between the connecting arm and the supporting arm, the clamping member is hinged to the supporting member after passing through the avoiding part, and the hinge shaft is arranged in the avoiding part.

[0010] Preferably, the clamping arm or the supporting arm is provided with a limiting part, the limiting part is located between the clamping arm and the supporting arm, and the limiting part is used for abutting against the base plate.

[0011] Preferably, the hinge shaft is sleeved with a torsional spring, two elastic arms of the torsional spring are connected with the supporting member and the clamping member respectively, and the torsional spring drives the clamping arm to close through the relaxation force or the compression force.

[0012] Preferably, the mounting member is provided as an L-shaped connecting plate comprising a vertical part and a horizontal part; the vertical part is connected with the conveying chain, and the horizontal part is connected with the supporting member.

[0013] Preferably, the clamping opening device comprises a guide part, the guide part is located at the clamping opening position, and when the conveying chain conveys the elastic clamp to the clamping opening position, the guide part presses the driving arm to drive the clamping arm to open.

[0014] Preferably, the guide part comprises a boss and an inclined surface, the inclined surface is arranged at both ends of the boss; when the clamping arm approaches the boss along the inclined surface, the boss presses the driving arm to make the clamping arm open; when the clamping part moves away from the boss along the inclined surface, the driving arm is reset under the action of elasticity.

[0015] Preferably, the elastic clamp chain system further comprises a driving wheel, the conveying chain is sleeved on the driving wheel, the driving wheel drives or guides the movement of the conveying chain; the clamping opening device comprises a guide wheel, the guide wheel is coaxially arranged with the driving wheel, the guide wheel remains stationary in the process of rotation of the driving wheel; the boss and the inclined surface are arranged around the outer surface of the guide wheel.

[0016] Preferably, further comprising a housing and a first rotating shaft, wherein the guide wheel is fixedly connected with the housing; the first rotating shaft passes through the guide wheel and the driving wheel in sequence, and at least one of the guide wheel and the driving wheel is movably connected with the first rotating shaft through a bearing.

[0017] Preferably, the guide wheel is located at the first side of the driving wheel, the elastic clamp is located at the second side of the driving wheel; a push rod is arranged in the driving wheel, wherein the push rod is arranged through the driving wheel, the two ends of the push rod are exposed from the first side and the second side of the driving wheel respectively, and the push rod is opposite to the driving arm; when the driving wheel drives the conveying chain to rotate to the boss, the boss presses the push rod to move from the first side to the second side, so that the push rod pushes the driving arm.

[0018] Preferably, a spring is arranged at the connection between the push rod and the driving wheel, and the spring biases the push rod to the first side of the driving wheel.

[0019] Preferably, a cooling machine is further arranged, which is used for cooling the substrate sent by the oven; the elastic clamp chain system is arranged through the oven and the cooling machine.

[0020] Preferably, the coating machine comprises a first coating machine and a second coating machine, the oven comprises a first oven and a second oven, and the cooling machine comprises a first cooling machine and a second cooling machine, wherein the first coating machine, the first oven and the first cooling machine are arranged in sequence to form a first processing section; the second coating machine, the second oven and the second cooling machine are arranged in sequence to form a second processing section, and the second processing section is located downstream of the first processing section; a turnover machine is arranged between the first processing section and the second processing section, and the turnover machine is used for overturning the upper and lower sides of the substrate.

[0021] Preferably, the first oven and the second oven respectively comprise a plurality of sub-ovens, wherein the number of sub-ovens in the second oven is twice that of the first oven.

[0022] Preferably, a buffer machine is further arranged between the first processing section and the second processing section, and the buffer machine is used for buffering the substrate processed by the first processing section and conveying the buffered substrate to the turnover machine.

[0023] The coating and baking machine provided by the technical scheme comprises a coating machine, an oven and an elastic clamp chain system; the coating machine is used for coating ink on a substrate, the oven is used for drying the ink on the substrate, and the elastic clamp chain system is used for conveying the substrate from the coating machine to the oven; the elastic clamp chain system comprises a conveying chain, an opening clamp device and an elastic clamp, and the elastic clamp comprises a mounting member, a supporting member and a clamping member; the mounting member is used for fixing the elastic clamp to the conveying chain, the supporting member is fixedly installed or integrally formed on the mounting member, and the clamping member is elastically connected to the mounting member or the supporting member through a hinge shaft and is used for clamping the substrate in cooperation with the supporting member; the clamping member comprises a clamping arm and a driving arm, and the clamping arm has a first tip; the clamping arm and the driving arm are located on the two sides of the hinge shaft respectively; when the elastic clamp moves to the opening clamp position along with the conveying chain, the driving arm is opened. Through the improved elastic clamp chain system, the processing of a thinner circuit substrate is realized. BRIEF DESCRIPTION OF DRAWINGS

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 The images show a side view and a top view of the coating and baking machine provided by this invention.

[0026] Figure 2A This is a schematic diagram of the elastic clamp in the closed state in the coating and baking machine provided by the present invention.

[0027] Figure 2B This is a schematic diagram of the elastic clamp in the open state of the coating and baking machine provided by the present invention.

[0028] Figure 3 This is a schematic diagram from another perspective of the elastic clamp in the coating and baking machine provided by the present invention.

[0029] Figure 4 This is an exploded view of the elastic clamp in the coating and baking machine provided by the present invention.

[0030] Figure 5 This is a three-dimensional schematic diagram of the elastic clamping chain system in the coating and baking machine provided by the present invention.

[0031] Figure 6 for Figure 5 A partial schematic diagram of part A in the middle.

[0032] Figure 7 This is a schematic diagram of the clamping device in the coating and baking machine of the present invention.

[0033] Figure 8 This is an exploded view of the elastic clamping chain system in the coating and baking machine of the present invention.

[0034] Figure 9 This is a cross-sectional view of the elastic chain system in the coating and baking machine of the present invention.

[0035] Figure 10 This is a schematic diagram showing the operation of the drive wheel and guide wheel in the elastic chain system of the coating and baking machine of the present invention.

[0036] Figure 11 The following are side and top views of another embodiment of the coating and baking machine provided by the present invention.

[0037] Figure 12A side view and a top view of another embodiment of the coating oven provided by the present application.

[0038] Figure 13 A side view and a top view of the buffer and the turnover machine in the coating oven provided by the present application.

[0039] BRIEF DESCRIPTION OF DRAWINGS

[0040]

[0041]

[0042] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0044] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0045] In addition, if the embodiments of the present application involve descriptions of “first”, “second” and the like, the descriptions of “first”, “second” and the like are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first”, “second” can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope of the present application.

[0046] In the field of automatic equipment, there is a process for processing a plate. For example, in the field of printed circuit board (PCB), it is necessary to perform ink coating and drying and other processing procedures on the substrate of the PCB. These processes are completed by a coating oven.

[0047] The coating baking machine is used for coating ink on a substrate, and then clamping the substrate by a chain clamping system and conveying the substrate to an oven for baking to dry the ink.

[0048] Currently, the chain clamping system can only clamp the two side edges of the substrate because the substrate is coated with ink. Due to the limited clamping space, the current clamp can only be used to clamp some thicker substrates. If the thickness of the substrate is too thin, the clamp is unstable, and the substrate is easy to fall from the clamp into the oven 20 during the baking process, resulting in damage to the substrate and the oven 20.

[0049] Therefore, in order to solve the above problems, the coating baking machine provided by the embodiments of the present application solves the problem that the current coating baking machine cannot process thinner substrates by setting an improved elastic clamping chain system.

[0050] For the convenience of understanding, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0051] Please refer to Figure 1 and Figure 2A , wherein, Figure 1 is a side view and a top view of the coating baking machine provided by the embodiments of the present application; Figure 2A is a schematic view of the elastic clamp in a closed state provided by the embodiments of the present application.

[0052] As shown in 1A and Figure 2A , the coating baking machine provided by the embodiments of the present application includes a coating machine 10, an oven 20, and an elastic clamping chain system; the coating machine 10 is used for coating ink on a substrate, the oven 20 is used for drying the ink on the substrate, and the elastic clamping chain system is used for conveying the substrate from the coating machine 10 to the oven 20; the elastic clamping chain system includes a conveying chain 200, an opening clamp device 300, and an elastic clamp 100, the elastic clamp 100 includes a mounting member 110, a supporting member 120, and a clamping member 130, wherein the mounting member 110 is used for fixing the elastic clamp 100 to the conveying chain 200, the supporting member 120 is fixedly installed or integrally formed on the mounting member 110, and the clamping member 130 is elastically connected to the mounting member 110 or the supporting member 120 through a hinge shaft 140, and is used for clamping the substrate in cooperation with the supporting member 120; the clamping member 130 includes a clamping arm 131 and a driving arm 132, the clamping arm 131 has a first sharp end 133; the clamping arm 131 and the driving arm 132 are respectively located on both sides of the hinge shaft 140; when the elastic clamp 100 moves to the opening clamp position with the conveying chain 200, the driving arm 132 drives the clamping arm 131 to open under the action of the opening clamp device 300.

[0053] In the embodiment, the elastic clamping chain system is used to transport the substrate from the coating machine 10 to the oven 20, so as to realize the substrate ink coating and baking operation. In order to realize the clamping and transportation of the thin substrate, the elastic clamping 100 and the conveying chain 200 are arranged. The elastic clamping 100 is installed with the conveying chain 200, when the conveying chain 200 moves, the elastic clamping 100 is driven to move, so as to drive the plate-shaped material clamped by the elastic clamping 100, that is, the substrate to move. The elastic clamping 100 is connected with the conveying chain 200 through the mounting piece 110, so that when the elastic clamping 100 needs to be disassembled due to damage, the elastic clamping 100 can be disassembled from the mounting piece 110, without the need to disassemble and damage the conveying chain 200, which is convenient for maintenance. The supporting piece 120 is fixedly installed opposite to the mounting piece 110, and the clamping piece 130 is elastically connected with the supporting piece 120 through the hinge shaft 140, so that in the natural state, the clamping piece 130 is clamped to the supporting piece 120 under the elastic action, so as to clamp the substrate.

[0054] Further, the clamping piece 130 includes clamping arms 131 and driving arms 132 located on both sides of the hinge shaft 140, and the clamping arms 131 and the driving arms 132 rotate around the hinge shaft 140 like a seesaw, as shown in Figure 2A When the clamping arms 131 are close to the supporting piece 120, the clamping arms 131 are in a closed state, and the substrate can be clamped at this time. As shown in Figure 2B When the clamping arms 131 are away from the supporting piece 120, the clamping arms 131 are in an open state, and the substrate can be put into or taken out of the elastic clamping 100.

[0055] In the embodiment, the clamping arms 131 have first sharp ends 133, which can clamp and fix the substrate through limited positions. Further, the clamping piece 130 and the supporting piece 120 are connected in an elastic hinge connection mode, which provides greater clamping force for the clamping piece 130. Therefore, the elastic clamping 100 provided by the embodiment can stably clamp and transport the substrate.

[0056] Further, the opening and closing mode of the clamping piece 130 and the supporting piece 120 allows the elastic clamping 100 to open a larger opening, which is beneficial to more conveniently put in or take out the substrate. At the same time, in some use scenarios, the elastic clamping 100 clamps the circuit board coated with ink and enters the oven 20 for drying. The process of thermal expansion and contraction challenges the structural stability of the elastic clamping 100. The elastic hinge connection mode between the clamping piece 130 and the supporting piece 120 in the elastic clamping 100 is more simple and reliable, which helps to improve the service life of the elastic clamping 100.

[0057] It should be noted that in the scheme of the embodiment of the present application, the clamping piece 130 is elastically hinged with the supporting piece 120, so as to realize the opening and closing similar to scissors. In order to make the opening and closing more stable, the embodiment of the present application further provides the following preferred implementation manner.

[0058] As shown in Figures 2A to 4 , the supporting piece 120 includes a connecting arm 121 and a supporting arm 122, and the connecting arm 121 and the supporting arm 122 are located on both sides of the hinge shaft 140, wherein the connecting arm 121 is fixedly installed or integrally formed on the mounting piece 110; the supporting arm 122 is provided with a second sharp end 123, and the first sharp end 133 is arranged opposite to the second sharp end 123.

[0059] In the embodiment, when the supporting piece 120 is hinged with the clamping piece 130, the connecting arm 121 and the driving arm 132 are located at the same end, and the clamping arm 131 and the supporting arm 122 are located at the opposite end. In specific work, the connecting arm 121 is connected with the mounting piece 110, and when the driving arm 132 is pushed, a movement similar to the shearing of scissors is generated, the clamping arm 131 approaches the supporting arm 122, so that the first sharp end 133 and the second sharp end 123 abut each other. This working mode makes the structure of the elastic clamp 100 more compact, the opening larger, and the service life longer. At the same time, since the clamping arm 131 and the supporting arm 122 are respectively provided with sharp ends, it is more conducive to stably clamping the substrate.

[0060] Alternatively, the above-mentioned first sharp end 133 and the second sharp end 123 can be respectively a cone, a pyramid, a sharp sheet or other structures with a sharp end shape, and the embodiment of the present application does not limit this.

[0061] It should be noted that in order to realize the hinging between the supporting piece 120 and the clamping piece 130, the embodiment of the present application does not limit the positional relationship between the supporting piece 120 and the clamping piece 130. Preferably, in order to improve the clamping stability of the elastic clamp 100, the embodiment of the present application provides the following scheme.

[0062] As shown in Figure 4 , the supporting piece 120 is provided with a avoiding portion 124, the avoiding portion 124 is located between the connecting arm 121 and the supporting arm 122, the clamping piece 130 is hinged with the supporting piece 120 after passing through the avoiding portion 124, and the hinge shaft 140 is arranged in the avoiding portion 124.

[0063] In the embodiment, the clamping piece 130 is connected with the supporting piece 120 after passing through the avoiding portion 124 arranged on the supporting piece 120, so that the clamping piece 130 is located at the center position of the supporting piece 120, and in the opening and closing process of the clamping piece 130, the whole elastic clamp 100 is always in a stable state of left-right balance.

[0064] Optionally, the avoiding part 124 can have various setting modes, and the embodiments of the present application are not limited thereto. For example, it can be set as a gap. Or as shown in Figure 4 The avoiding part 124 is set as a through hole which is located at the central part of the middle section of the supporting member 120. The clamping member 130 passes through the through hole and is hinged to the supporting member 120 through the hinge shaft 140.

[0065] It should be noted that since the hinge at the hinge shaft 140 is a flexible hinge, the hinge is provided with an elastic member which presses the clamping arm 131 towards the supporting arm 122, so that the elastic clamp 100 is in a clamping state in a natural state. Only when the opening clamp device 300 drives the driving arm 132 to move, the driving arm 132 will drive the clamping arm 131 to open.

[0066] For the specific implementation mode of the above-mentioned flexible hinge, the embodiments of the present application are not limited, and for the convenience of understanding, a preferred implementation scheme is provided as follows.

[0067] As shown in Figure 3 and Figure 4 , a torsional spring 150 is sleeved on the hinge shaft 140, and two elastic arms 151 of the torsional spring 150 are connected to the supporting member 120 and the clamping member 130 respectively; the torsional spring 150 drives the clamping arm 131 to close through the relaxation force or compression force.

[0068] In the embodiment, the torsional spring 150 includes a ring-shaped part 152, and two ends of the ring-shaped part 152 are integrally provided with the elastic arms 151, and the two elastic arms 151 are connected to the supporting member 120 and the clamping member 130 respectively. Optionally, as shown in Figure 3 , the inner sides of the driving arm 132 and the supporting arm 122 are respectively provided with grooves, and the two elastic arms 151 are respectively arranged in one groove. Preferably, as shown in Figure 2A and 2, the two elastic arms 151 of the torsional spring 150 provide relaxation force, so as to press the driving arm 132 and the supporting arm 122, and make the clamping arm 131 press towards the supporting arm 122. The elastic clamp 100 is clamped and closed in a natural state.

[0069] The specific setting mode of the elastic clamp 100 provided by the embodiments of the present application is introduced. It should be noted that in the working process of the elastic clamp 100, a group of elastic clamps 100 including two elastic clamps 100 which are left-right symmetrical clamps the substrate from both sides. In the clamping process, if the substrate excessively deviates to one side of the elastic clamp 100, the other side of the elastic clamp 100 will not be able to clamp the substrate, resulting in the substrate falling off. Therefore, in order to solve this problem, the embodiments of the present application further provide the following scheme.

[0070] As shown in Figure 2A and Figure 2BAs shown, the clamping arm 131 or the supporting arm 122 is provided with a limiting part 134, which is located between the clamping arm 131 and the supporting arm 122 and is used to abut against the plate-shaped material.

[0071] In this embodiment, the limiting part 134 can be provided on any one of the clamping arm 131 or the supporting arm 122. Preferably, as shown in Figure 2A and Figure 2B The limiting part 134 is provided on the clamping arm 131 and is configured as a protrusion formed on the clamping arm 131. When the elastic clamp 100 clamps the plate-shaped material (i.e., the substrate), the protrusions of the left and right elastic clamps 100 abut against the substrate from both sides, thereby preventing the substrate from deviating to one side and ensuring that the substrate is uniformly and stably clamped from both sides by the two elastic clamps 100. The clamping stability of the elastic clamp 100 is improved.

[0072] Further, as shown in Figure 6 and Figure 9 In the elastic clamp 100 provided by the embodiment of the present application, the mounting member 110 is configured as an L-shaped connecting plate including a vertical part 111 and a horizontal part 112; the vertical part 111 is used to be connected with the conveying chain 200, and the horizontal part 112 is connected with the supporting member 120 of the elastic clamp 100.

[0073] In this embodiment, as shown in Figure 6 The conveying chain 200 includes a plurality of chain links, and each chain link includes front and rear connecting columns used to be connected with front and rear chain links. The mounting member 110 provided by the embodiment of the present application utilizes the connecting column structure, and the vertical part 111 is connected with the chain link through the connecting column. Further, the horizontal part 112 is connected with the supporting member 120 of the elastic clamp 100. In this way, when the user needs to disassemble the elastic clamp 100, the elastic clamp 100 only needs to be disassembled from the horizontal part 112, without the need to disassemble the chain link. Compared with the scheme of directly mounting the elastic clamp 100 on the chain link, the daily maintenance is more convenient.

[0074] The specific implementation of the elastic clamp in the coating and baking machine provided by the embodiment of the present application is described in detail above, and the specific implementation of the elastic clamp chain system is introduced below. For the convenience of understanding, the following will be described in detail in combination with the accompanying drawings.

[0075] Please refer to Figures 5 to 7 , Figure 5 the perspective view of the elastic clamp chain system provided by the embodiment of the present application, Figure 6 is Figure 5 the partial view of part A in FIG. 4; Figure 7 is the schematic view of the opening clamp device in the embodiment of the present application.

[0076] As shown in Figures 5 to 7As shown, the elastic clamping chain system provided by the embodiment of the present application comprises a conveying chain 200, an opening clamping device 300, and the elastic clamps 100 as described above, the elastic clamps 100 are connected with the conveying chain 200 through the mounting members 110; the opening clamping device 300 comprises a guide portion 310, the guide portion 310 is located at an opening clamping position, when the conveying chain 200 conveys the elastic clamps 100 to the opening clamping position, the guide portion 310 presses the driving arm 132 to drive the clamping arm 131 to open.

[0077] It can be understood that, Figure 5 The elastic clamping chain system shown is one side, in actual work, two sides of the elastic clamping chain system are symmetrically arranged to clamp the substrate from both sides. Further, a plurality of elastic clamps 100 are arranged on each conveying chain 200 to clamp and convey a plurality of substrates.

[0078] In the embodiment, the specific implementation mode of the elastic clamps 100 mounted on the conveying chain 200 through the mounting members 110 can be referred to the foregoing description, which will not be described here. It should be noted that the opening clamping position refers to the position where the substrate is put into the elastic clamps 100, or the position where the substrate is taken out of the elastic clamps 100. The guide portion 310 of the opening clamping device 300 is located at the opening clamping position, so that when the elastic clamps 100 move to the opening clamping position, the driving arm 132 is pressed by the guide portion 310 to drive the clamping arm 131 to open, so that the elastic clamps 100 can clamp or release the substrate.

[0079] As described above, the elastic clamping chain system provided by the embodiment of the present application cooperates with the elastic clamps 100 provided by the embodiment of the present application, and the elastic clamps 100 are guided to open by the extrusion of the guide portion 310, and the clamping and conveying of the substrate are realized by cooperating with the elastic clamps 100.

[0080] It should be noted that in the embodiment of the present application, since the clamping member 130 and the supporting member 120 of the elastic clamps 100 are elastically hinged in a scissors shape, the guide portion 310 only needs to push the driving arm 132 to realize the opening of the elastic clamps 100. Alternatively, the guide portion 310 can actively approach the driving arm 132, or the elastic clamps 100 can approach the guide portion 310, which is not limited by the embodiment of the present application. For ease of understanding, the present application provides a preferred embodiment as follows.

[0081] Please refer to Figure 7 As shown, Figure 7 As shown, the guide portion 310 comprises a boss 311 and an inclined surface 312, the inclined surface 312 is arranged at both ends of the boss 311; wherein when the clamping arm 131 approaches the boss 311 along the inclined surface 312, the boss 311 presses the driving arm 132 to make the clamping arm 131 open; when the opening clamping portion moves away from the boss 311 along the inclined surface 312, the driving arm 132 is reset under the action of elasticity.

[0082] In this embodiment, the guide part 310 is stationary, and the elastic clamp 100 is driven by the moving chain to approach the guide part 310 to achieve the opening of the clamp. In this process, the inclined surface 312 guides the movement of the driving arm 132, specifically, the inclined surface 312 guides the driving arm 132 to climb the surface where the boss 311 is located, so that the boss 311 extrudes and drives the movement of the driving arm 132. During the process of the elastic clamp 100 moving away, the inclined surface 312 also guides to ensure that the elastic clamp 100 is gently closed. It can be seen that through the above structure, the guide part 310 can stably drive the opening and closing of the elastic clamp 100. It should be noted that the time when the elastic arm stays on the boss 311 is the time when the elastic clamp 100 is opened, therefore, the user can adjust the length of the boss 311 according to the needs, or the moving speed of the conveying chain 200, which is not limited in the embodiment of the application.

[0083] It should be noted that the guide part 310 provided by the embodiment of the application can be arranged at any position on the movement track of the elastic clamp 100, preferably, the guide part 310 is arranged at both ends of the elastic clamp chain system, thereby ensuring that the elastic clamp 100 is opened at both ends of the chain system. In the specific working process, the conveying chain 200 is often arranged in a chain shape with the head and tail connected, and is driven by the driving wheels 400 at both ends. In view of this feature, the embodiment of the application provides a preferred arrangement mode of the guide part 310 as follows.

[0084] Please refer to Figures 8 to 10 , Figure 8 for the exploded view of the elastic clamp chain system in the embodiment of the application; Figure 9 for the sectional view of the elastic clamp chain system in the embodiment of the application; Figure 10 for the schematic view of the cooperation between the driving wheel and the guide wheel in the elastic clamp chain system in the embodiment of the application.

[0085] As Figures 8 to 10 shown, it further includes a driving wheel 400, the conveying chain 200 is sleeved on the driving wheel 400, and the driving wheel 400 drives or guides the movement of the conveying chain 200; the clamp opening device 300 includes a guide wheel 320, the guide wheel 320 is coaxially arranged with the driving wheel 400, and the guide wheel 320 remains stationary during the rotation of the driving wheel 400; as Figure 7 shown, the boss 311 and the inclined surface 312 are arranged around the outer surface of the guide wheel 320.

[0086] In this embodiment, the driving wheel 400 can be a driving wheel or a driven wheel, and the present embodiment is not limited to this. The driving wheel refers to a wheel that rotates under the drive of the motor and is used to drive the conveying chain 200 to move. The driven wheel refers to a wheel that is not powered and only guides the conveying chain 200 to rotate. Generally, of the two driving wheels 400 sleeved at the two ends of the conveying chain 200, one is a driving wheel and the other is a driven wheel. The guide wheel 320 is coaxially arranged with the driving wheel 400, and the guide wheel 320 is stationary during the rotation of the driving wheel 400. Thus, the relative stationarity of the guide portion 310 relative to the elastic member is achieved, and the boss 311 and the inclined surface 312 of the guide portion 310 are arranged on the outer surface of the guide wheel 320. During the movement of the elastic clip 100 along the driving wheel 400, the elastic clip 100 is pressed by the boss 311 to achieve the opening of the clip.

[0087] Preferably, as shown in Figure 10 The driving wheel 400 is provided with a plurality of driving teeth 401, which are used to engage with the conveying chain 200 to achieve the guidance and driving of the conveying chain 200. The driving teeth 401 also have a fixing effect on the conveying chain 200. When the guide portion 310 pushes the elastic arm of the elastic clip 100 outward, the conveying chain 200 will not be correspondingly offset, which improves the stability of the system.

[0088] It should be noted that in order to achieve the cooperation of the driving wheel 400 and the guide wheel 320, the guide wheel 320 remains stationary during the rotation of the driving wheel 400. The specific implementation of the fixed guide wheel 320 is not limited in the present embodiment, and preferably, the guide wheel 320 can be fixed with an external device. For ease of understanding, a preferred embodiment is provided as follows.

[0089] As shown in Figure 8 and Figure 9 It also includes a housing 500 and a first rotating shaft 600, wherein the guide wheel 320 is fixedly connected with the housing 500; the first rotating shaft 600 passes through the guide wheel 320 and the driving wheel 400 in sequence, and at least one of the guide wheel 320 and the driving wheel 400 is movably connected with the first rotating shaft 600 through a bearing 610.

[0090] In this embodiment, as shown in Figure 8 and Figure 9As shown in the figure, the end of the conveying chain 200 is provided with a buckling protection shell 500. Optionally, a screw hole 321 is provided on the guide wheel 320, so as to be screwed and fixed with one of the shells 500. A first rotating shaft 600 is provided at the axis of the guide wheel 320, the first rotating shaft 600 penetrates the coaxial guide wheel 320 and the driving wheel 400 in sequence, so as to realize the coaxial arrangement of the guide wheel 320 and the driving wheel 400. Further, a bearing 610 is arranged at the connection between the first rotating shaft 600 and the guide wheel 320 and / or the driving wheel 400, so that the driving wheel 400 can rotate relative to the guide wheel 320 with the first rotating shaft 600 as the axis. Preferably, as shown in the figure, Figure 7 and Figure 8 As shown in the figure, a mounting hole 322 is provided at the axis of the guide wheel 320, the mounting hole 322 is provided with a bearing 610, and the first rotating shaft 600 penetrates the bearing 610, so that the first rotating shaft 600 can rotate relative to the guide wheel 320, thereby driving the driving wheel 400 to rotate.

[0091] Further, in the process of specific work, the elastic clamp 100 is located at the second side of the driving wheel 400, used for facing and clamping the substrate, and the guide wheel 320 is located at the first side of the driving wheel 400, used for pressing the elastic clamp 100 to open. In the case of coaxial arrangement of the guide wheel 320 and the driving wheel 400, the driving wheel 400 is located between the guide wheel 320 and the elastic clamp 100, which may interfere with the work between the guide wheel 320 and the elastic clamp 100. Therefore, in order to solve this problem, the embodiment of the application further provides the following scheme.

[0092] As shown in the figure, Figures 8 to 10 The guide wheel 320 is located at the first side of the driving wheel 400, and the elastic clamp 100 is located at the second side of the driving wheel 400. A push rod 410 is arranged in the driving wheel 400, wherein the push rod 410 is arranged penetratingly in the driving wheel 400, the two ends of the push rod 410 are exposed from the first side and the second side of the driving wheel 400 respectively, and the push rod 410 is opposite to the driving arm 132. When the driving wheel 400 drives the conveying chain 200 to rotate to the boss 311, the boss 311 presses the push rod 410 to move from the first side to the second side, so as to push the driving arm 132 through the push rod 410.

[0093] In the embodiment, the push rod 410 is arranged penetratingly in the driving wheel 400, and the push rod 410 can slide left and right in the driving wheel 400. The push rod 410 is opposite to the driving arm 132 of the elastic clamp 100. When the driving wheel 400 drives the push rod 410 and the elastic clamp 100 to rotate synchronously to the position where the boss 311 is located, the boss 311 presses the push rod 410 to move from the first side to the second side of the driving wheel 400, so that the boss 311 indirectly presses the driving arm 132 through the push rod 410, thereby making the elastic clamp 100 open.

[0094] It can be understood that, since there are a plurality of elastic clamps 100 on the conveying chain 200, a plurality of push rods 410 are arranged around the driving wheel 400 to cyclically push the plurality of push rods 410.

[0095] It should be noted that, when the elastic clamp 100 leaves the boss 311, the push rod 410 needs to move from the second side to the first side of the driving wheel 400, thereby leaving space for the reset of the driving arm 132. Alternatively, the push rod 410 can be reset in multiple ways. For example, in embodiment 1, the elastic force of the torsion spring 150 resets the driving arm 132, and simultaneously drives the push rod 410 to move. Alternatively, in embodiment 2, an elastic member is additionally arranged on the driving wheel 400, and the elastic force of the elastic member automatically resets the push rod 410. Embodiment 2 is a more preferred implementation.

[0096] For the sake of understanding, the specific implementation of the above-mentioned embodiment 2 will be described below in conjunction with the accompanying drawings.

[0097] As shown in Figure 10 , a spring (not shown in the figure) is arranged at the connection between the push rod 410 and the driving wheel 400, and the spring biases the push rod 410 to the first side of the driving wheel 400.

[0098] In this embodiment, the driving wheel 400 is provided with a mounting hole for mounting the push rod 410, wherein a spring is arranged between the push rod 410 and the inner wall of the mounting hole, and the spring is connected or abuts with the inner wall of the mounting hole and the push rod 410. The spring drives the push rod 410 to move to the first side of the driving wheel 400, i.e., the side of the guide wheel 320, through its relaxation force or compression force. In this way, when the boss 311 on the guide wheel 320 presses the push rod 410, the push rod 410 moves to the side of the elastic clamp 100 to achieve the opening of the clamp, overcoming the elastic force of the spring. When the push rod 410 and the elastic clamp 100 jointly leave the boss 311, the push rod 410 is reset under the action of the elastic force of the spring, thereby leaving space for the closure of the elastic clamp 100.

[0099] The specific implementation of the elastic clamp chain system in the embodiments of the present application has been described in detail above. In the embodiments of the present application, the elastic clamp chain system is arranged in a coating and baking machine and is used to convey the substrate processed by the coating and baking machine. The other structures of the coating and baking machine will be described in detail below.

[0100] Please refer to Figure 11 , Figure 11 , which are the side view and top view of another embodiment of the coating and baking machine provided by the present application. As shown in Figure 11 , the coating and baking machine provided by the present application further comprises a cooling machine 30 for cooling the substrate sent out by the oven 20, and the elastic clamp chain system is arranged through the oven 20 and the cooling machine 30.

[0101] In this embodiment, the cooling machine 30 is arranged downstream of the oven 20, and is used to cool the substrate after baking, thereby increasing the processing efficiency of the substrate. Alternatively, after the coating machine 10 completes the ink coating of the substrate, the substrate is output, the elastic clamps are opened to clamp the substrate in the above manner, and then the conveying chain sequentially conveys the substrate clamped by the elastic clamps through the oven 20 and the cooling machine 30, so as to realize the drying and cooling of the ink. In this way, the full-process processing of the substrate is realized.

[0102] It should be noted that, in the process of ink coating of the substrate by the coating machine 10, the upper and lower two sides of the substrate are coated by the upper and lower two rollers. In this process, due to the intervention of gravity and other factors, the coating pressure of the upper and lower two rollers of the coating machine 10 is different, resulting in different ink thicknesses on the upper and lower two sides of the substrate. In order to overcome this problem, the embodiment of the present application further provides the following scheme.

[0103] Please refer to Figure 12 , Figure 12 the side view and top view of another embodiment of the coating and baking machine provided by the present application. Figure 13 the side view and top view of the buffer machine 50 and the turnover machine in the coating and baking machine provided by the present application.

[0104] The coating machine 10 includes a first coating machine and a second coating machine, the oven 20 includes a first oven and a second oven, and the cooling machine 30 includes a first cooling machine and a second cooling machine. As shown in Figure 11 , the first coating machine, the first oven and the first cooling machine are arranged in sequence to form a first processing section; as shown in Figure 12 , the second coating machine, the second oven and the second cooling machine are arranged in sequence to form a second processing section, and the second processing section is located downstream of the first processing section; the first processing section and the second processing section are provided with the turnover machine 40, and the turnover machine 40 is used to turn over the upper and lower sides of the substrate.

[0105] In this embodiment, the coating and baking machine includes two processing sections, each of which performs the full-process operation of coating-baking-cooling, and the turnover machine 40 is arranged between the two processing sections to turn over the substrate. In this way, the two sides of the substrate are coated and baked as upper and lower sides respectively, thereby reducing the situation that the ink thicknesses of the two sides of the substrate are different due to the interference of gravity.

[0106] It should be noted that the ink thicknesses processed by the first processing section and the second processing section may be different. Specifically, the first processing section is a pre-coating of the ink, and the ink thickness is relatively thin. The second processing section is the last coating process, and the ink thickness is thicker. In order to adaptively solve this problem, the embodiment of the present application further adopts the following scheme.

[0107] AsFigure 11 and Figure 12 As shown in FIG. 1, the first oven 20 and the second oven 20 each include a plurality of sub-ovens 21, and the number of the sub-ovens 21 in the second oven 20 is twice that of the first oven 20.

[0108] In the embodiment, the first oven 20 and the second oven 20 each are composed of a plurality of sub-ovens 21, and the number of the sub-ovens 21 in the second oven 20 is twice that of the first oven 20. In this way, the baking time of the second oven 20 is longer than that of the first oven 20, and the second processing section can dry thicker ink.

[0109] Further, the first processing section and the second processing section are connected by the turnover machine 40. The turnover of the substrate by the turnover machine 40 slows down the transportation speed of the substrate, and the substrates processed by the first processing section are accumulated at the turnover machine 40. To solve this problem, the embodiment further adopts the following technical solution.

[0110] As shown in FIG. 1, the first processing section and the second processing section are further connected by the buffer machine 50. The buffer machine 50 is used to buffer the substrates processed by the first processing section and transport the buffered substrates to the turnover machine 40. Figure 13 In the embodiment, the buffer machine 50 is used to buffer the substrates output by the first processing section, thereby adapting to the slow processing speed of the turnover machine 40. Alternatively, the first processing section and the second processing section are respectively provided with independent elastic clamping chain systems. The elastic clamping of the first processing section is opened, and the substrate is sent to the buffer machine 50. The substrate sent by the buffer machine 50 enters the elastic clamping chain system of the second processing section. In this way, the transportation of the substrates between the two processing sections is connected.

[0111] In summary, the coating and baking machine provided by the embodiment includes a coating machine 10, an oven 20, and an elastic clamping chain system. The coating machine 10 is used to coat ink on a substrate, the oven 20 is used to dry the ink on the substrate, and the elastic clamping chain system is used to transport the substrate from the coating machine 10 to the oven 20. The elastic clamping chain system includes a transportation chain, an opening device, and an elastic clamp. The elastic clamp includes a mounting member, a supporting member, and a clamping member. The mounting member is used to fix the elastic clamp to the transportation chain. The supporting member is fixedly installed or integrally formed on the mounting member. The clamping member is elastically connected to the mounting member or the supporting member through a hinge shaft and is used to clamp the substrate together with the supporting member. The clamping member includes a clamping arm and a driving arm. The clamping arm has a first tip. The clamping arm and the driving arm are respectively located on two sides of the hinge shaft. When the elastic clamp moves to the opening position along the transportation chain, the driving arm drives the clamping arm to open under the action of the opening device. By using the improved elastic clamping chain system, the coating and baking processing of a thinner circuit substrate is realized.

[0112]

[0113] ​The above merely describes the preferred embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structural changes made according to the content of the present application specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. A coater-baker characterized by comprising: The coating baking machine comprises a coating machine, an oven and an elastic clamping chain system; the coating machine is used for coating ink on a substrate; the oven is used for drying the ink on the substrate; and the elastic clamping chain system is used for conveying the substrate from the coating machine to the oven. The elastic clamping chain system comprises a conveying chain, an opening clamping device and an elastic clamping piece; the elastic clamping piece comprises a mounting piece, a supporting piece and a clamping piece; wherein The mounting piece is used for fixing the elastic clamping piece to the conveying chain; the supporting piece is fixedly installed or integrally formed on the mounting piece; and the clamping piece is elastically connected to the mounting piece or the supporting piece through a hinge shaft, and is used for clamping a substrate in cooperation with the supporting piece. The clamping piece comprises a clamping arm and a driving arm; the clamping arm has a first tip; and the clamping arm and the driving arm are respectively located on two sides of the hinge shaft; when the elastic clamping piece moves to an opening clamping position along the conveying chain, the driving arm drives the clamping arm to open under the action of the opening clamping device. The opening clamping device comprises a guide part; the guide part is used for pressing the driving arm to drive the clamping arm to open; and the guide part comprises a boss; when the clamping arm approaches the boss, the boss presses the driving arm to make the clamping arm open. The elastic clamping chain system further comprises a driving wheel; the conveying chain is sleeved on the driving wheel; the driving wheel drives or guides the movement of the conveying chain; the opening clamping device comprises a guide wheel; the guide wheel remains stationary during the rotation of the driving wheel; and the boss is arranged on the outer surface of the guide wheel.

2. The coater-baker of claim 1, wherein The supporting piece comprises a connecting arm and a supporting arm; the connecting arm and the supporting arm are respectively located on two sides of the hinge shaft; wherein The connecting arm is fixedly installed or integrally formed on the mounting piece; The supporting arm is provided with a second tip; and the first tip and the second tip are oppositely arranged.

3. The coater-baker of claim 2, wherein The supporting piece is provided with a avoiding part; the avoiding part is located between the connecting arm and the supporting arm; the clamping piece is hinged to the supporting piece after passing through the avoiding part; and the hinge shaft is arranged in the avoiding part.

4. The coating baker of claim 2, wherein The clamping arm or the supporting arm is provided with a limiting part; the limiting part is located between the clamping arm and the supporting arm; and the limiting part is used for abutting against the substrate.

5. The coating baker of claim 1, wherein The hinge shaft is sleeved with a torsion spring; two elastic arms of the torsion spring are respectively connected to the supporting piece and the clamping piece; The torsion spring drives the clamping arm to close through relaxation force or compression force.

6. The coating baker of claim 1, wherein The mounting piece is an L-shaped connecting plate; the L-shaped connecting plate comprises a vertical part and a horizontal part; The vertical part is connected to the conveying chain; and the horizontal part is connected to the supporting piece.

7. The coating baker of claim 1, wherein The guide part is located at the opening clamping position; when the conveying chain conveys the elastic clamping piece to the opening clamping position, the guide part presses the driving arm to drive the clamping arm to open.

8. The coater-baker of claim 7, wherein The guide part comprises an inclined surface; the inclined surface is arranged at two ends of the boss; wherein When the clamping arm approaches the boss along the inclined surface, the boss presses the driving arm to make the clamping arm open; When the opening clamping device moves away from the boss along the inclined surface, the driving arm is reset under the action of elasticity.

9. The coating baking machine according to claim 8, wherein The guide wheel is coaxial with the driving wheel, The convex platform and the inclined surface are arranged around the outer surface of the guide wheel.

10. The coater-baker of claim 9, wherein Further comprising a housing and a first rotating shaft, The guide wheel is fixedly connected with the housing; The first rotating shaft sequentially passes through the guide wheel and the driving wheel, and at least one of the guide wheel and the driving wheel is movably connected with the first rotating shaft through a bearing.

11. The coater-baker of claim 9, wherein The guide wheel is located on the first side of the driving wheel, and the elastic clamp is located on the second side of the driving wheel; a push rod is arranged in the driving wheel, wherein The push rod is arranged through the driving wheel, and the two ends of the push rod are exposed from the first side and the second side of the driving wheel respectively, and the push rod is opposite to the driving arm; When the driving wheel drives the conveying chain to rotate to the convex platform, the convex platform presses the push rod to move from the first side to the second side, so that the push rod pushes the driving arm.

12. The coater-baker of claim 11, wherein A spring is arranged at the connection between the push rod and the driving wheel, and the spring biases the push rod to the first side of the driving wheel.

13. The coater-baker of any one of claims 1 to 12, wherein Further comprising a cooling machine, which is used to cool the substrate sent out by the oven; The elastic clamp chain system is arranged through the oven and the cooling machine.

14. The coater-baker of claim 13, wherein The coating machine comprises a first coating machine and a second coating machine, the oven comprises a first oven and a second oven, and the cooling machine comprises a first cooling machine and a second cooling machine, wherein The first coating machine, the first oven and the first cooling machine are sequentially arranged to constitute a first processing section; The second coating machine, the second oven and the second cooling machine are sequentially arranged to constitute a second processing section, and the second processing section is located downstream of the first processing section; A turnover machine is arranged between the first processing section and the second processing section, and the turnover machine is used to turn over the upper and lower sides of the substrate.

15. The coater-baker of claim 14, wherein The first oven and the second oven respectively comprise a plurality of sub-ovens, wherein The number of sub-ovens in the second oven is twice that of the first oven.

16. The coater-baker of claim 14, wherein A buffer machine is further arranged between the first processing section and the second processing section, and the buffer machine is used to buffer the substrate processed by the first processing section and convey the buffered substrate to the turnover machine.

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