Developing tank capable of adapting to developing speed of printing ink with different colors

Abstract

The utility model relates to a developing tank capable of adapting to developing speeds of ink with different colors, which belongs to the field of developing tanks and comprises a developing tank body, the developing tank body is provided with a developing conveying mechanism, and a first conveying surface for conveying a circuit board is formed on the developing conveying mechanism. The downstream end of the developing conveying mechanism extends out of the developing tank body and is connected with a buffering conveying mechanism, the buffering conveying mechanism comprises a supporting frame, a supporting roller set is arranged on the supporting frame, and a second conveying surface which is located at the same horizontal height as the first conveying surface and is used for being connected with the first conveying surface is formed at the upper end of the supporting roller set; the support frame is also provided with a push plate mechanism corresponding to the second conveying surface, and the push plate mechanism is used for pushing the circuit board on the second conveying surface at a constant speed along the conveying direction of the first conveying surface. The circuit board conveying device can convey circuit boards to downstream equipment at a constant speed, the downstream equipment does not need to be synchronously matched with the conveying speed of the developing tank, and the purpose of reducing the manufacturing cost of a servo control system of the downstream equipment can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of developing tanks, and in particular to a developing tank that can adapt to the developing speed of different color inks. Background Technology

[0002] Development is a process that removes the uncured photosensitive material from a circuit board after exposure, exposing the copper layer that needs to be etched.

[0003] Nowadays, circuit boards (PCBs) come in a wider variety of colors, and the inks used for each color have different compositions. Therefore, the developing time required varies depending on the PCB's color. This means that the developing tank needs to adjust its conveyor speed according to the type of ink on the PCB to adjust the developing time accordingly. For example, dark inks require a speed reduced to 0.8 m / min, while light inks require a speed increased to 1.2 m / min. This necessitates downstream equipment to synchronously match the developing tank's conveyor speed, significantly increasing the complexity and manufacturing cost of the servo control system.

[0004] Based on this, the present invention provides a developing tank that can adapt to the developing speed of different colored inks. By adding a buffer conveying device to adjust the conveying speed of the circuit boards conveyed from the developing tank, the conveying speed of the circuit boards conveyed from the developing tank is kept consistent. Therefore, the downstream equipment does not need to synchronize with the conveying speed of the developing tank, which can reduce the manufacturing cost of the servo control system of the downstream equipment. Utility Model Content

[0005] Based on this, the present invention provides a developing tank adaptable to different color ink developing speeds, comprising a developing tank body, the developing tank body having a developing conveying mechanism, the developing conveying mechanism having a horizontally arranged first conveying surface for conveying circuit boards, the downstream end of the developing conveying mechanism extending out of the developing tank body; a buffer conveying mechanism connected to the downstream end of the developing conveying mechanism, the buffer conveying mechanism including a support frame, the support frame having a support roller group corresponding to the first conveying surface, the support roller group including a plurality of support rollers rotatably arranged on the support frame, the support rollers being located on the same horizontal plane and perpendicular to the conveying direction of the first conveying surface; a second conveying surface formed at the upper end of the support roller group, located at the same horizontal height as the first conveying surface, for connecting with the first conveying surface; a push plate mechanism also being provided on the support frame corresponding to the second conveying surface, the push plate mechanism being used to uniformly push the circuit board on the second conveying surface along the conveying direction of the first conveying surface.

[0006] In this invention, the developing tank body is used to complete the developing process of the circuit board. Its developing conveyor mechanism is used to transport the circuit board during this process, moving it within the developing tank and then transferring it out of the developing tank to a buffer conveyor mechanism. The buffer conveyor mechanism moves the circuit board to downstream equipment for further processing. Specifically, when the developing conveyor mechanism transports the circuit board, the circuit board moves along the conveying direction of the first conveying surface.

[0007] In this invention, a buffer conveying mechanism is connected to the downstream end of the developing conveying mechanism. Specifically, the second conveying surface of the buffer conveying mechanism is at the same horizontal level as the first conveying surface and is adjacent to the downstream end of the first conveying surface. Therefore, the second conveying surface can smoothly receive the circuit board from the first conveying surface. Once the circuit board is completely transferred to the second conveying surface, its movement speed is not affected by the first conveying surface. At this point, by pushing the circuit board on the second conveying surface at a uniform speed through a pusher mechanism, uniform speed transportation of the circuit board can be achieved, transferring it uniformly to the downstream equipment. Thus, this invention can uniformly transfer circuit boards to the downstream equipment; that is, the conveying speed of the circuit board received by the downstream equipment is constant. Therefore, this invention does not require the downstream equipment to synchronously match the conveying speed of the developing tank, thereby reducing the manufacturing cost of the servo control system of the downstream equipment.

[0008] In this invention, it is possible to determine whether the circuit board has been completely transferred to the second conveying surface by setting up a sensor, such as a photoelectric sensor or a laser sensor on the mounting bracket, to detect whether there is a circuit board on the second conveying surface and to detect the position of the circuit board, thereby determining whether the circuit board has been completely transferred to the second conveying surface.

[0009] Furthermore, the pusher mechanism includes a mounting frame that is vertically mounted on the support frame. A set of conveying rollers is provided on the mounting frame corresponding to the second conveying surface. The set of conveying rollers is located above the corresponding second conveying surface and includes several conveying rollers that are rotatably mounted on the mounting frame. The conveying rollers are located on the same horizontal plane and are parallel to the support rollers. A drive mechanism is provided on the mounting frame corresponding to the set of conveying rollers. The drive mechanism is drivenly connected to the set of conveying rollers to drive the conveying rollers to rotate.

[0010] In this invention, the pusher mechanism pushes the circuit board on the second conveying surface via a set of conveying rollers on the mounting frame. Specifically, by lowering the mounting frame, the conveying rollers press the circuit board firmly onto the second conveying surface. Then, a drive mechanism rotates the conveying rollers in the set at a constant speed, propelling the circuit board across the second conveying surface at a uniform speed, thus moving the circuit board to the downstream equipment. After the circuit board is transferred, the mounting frame moves back to its original position, allowing it to continue receiving circuit boards from the first conveying surface.

[0011] In this invention, preferably, the conveying rollers in the conveying roller group and the support rollers in the support roller group are arranged in a one-to-one correspondence, and the conveying rollers are located directly above the corresponding support rollers, so as to prevent the circuit board from bending and deforming when pressing the circuit board onto the second conveying surface.

[0012] Furthermore, both ends of the conveying roller are rotatably mounted on the mounting frame via bearing structures, and the ends of each conveying roller in the conveying roller group located on the same side are connected to a transmission sprocket via connecting columns; the driving mechanism includes a drive sprocket mounted on the mounting frame via a servo motor, the drive sprocket and the transmission sprocket are located at the same horizontal height, and the drive sprocket is connected to the transmission sprocket via a transmission chain.

[0013] In this invention, the drive sprocket mounted on the mounting frame is connected to the drive sprocket at the end of the conveyor roller via a transmission chain. Therefore, the drive sprocket driven by the servo motor can simultaneously drive all the conveyor rollers to rotate at the same speed, thereby realizing the push of the circuit board by the conveyor roller group.

[0014] Furthermore, the mounting frame is vertically and flexibly mounted on the support frame via a lifting mechanism. The lifting mechanism includes at least three vertically arranged guide columns, and sleeves are slidably fitted onto the guide columns. The sleeves are fixedly connected to the mounting frame. The lifting mechanism also includes a drive cylinder mounted on the support frame. The power transmission part of the drive cylinder is drivenly connected to the mounting frame via a connecting arm to drive the mounting frame to reciprocate up and down along the guide columns.

[0015] In this invention, the mounting bracket is slidably connected to the guide post via a sleeve. The guide post guides the mounting bracket, enabling the drive cylinder to drive the mounting bracket to move vertically in a straight line. The sleeve is slidably mounted on the guide post via a linear bearing.

[0016] Furthermore, a stop bar is also provided on the mounting frame corresponding to the support roller group. The stop bar is fixedly installed on the mounting frame by a connecting rod and is located on the right side of the support roller group. The stop bar is arranged parallel to the support roller, and the lower end of the stop bar extends to the bottom of the second conveying surface.

[0017] In this invention, when the circuit board on the first conveying surface is conveyed to the second conveying surface, the baffle strip set on the mounting frame can block the circuit board on the second conveying surface, preventing the circuit board from moving directly off the second conveying surface due to inertia.

[0018] In addition, in this utility model, when the pushing mechanism conveys the circuit board on the second conveying surface, the baffle will move down with the mounting frame, so that it can move down to below the second conveying surface. That is, the baffle can automatically release its obstruction to the circuit board when the pushing mechanism pushes the circuit board. The distance between the upper end of the baffle and the second conveying surface needs to be less than the distance between the second conveying surface and the conveying roller group above it.

[0019] Furthermore, the two ends of the support roller are rotatably mounted on the support frame via a bearing structure.

[0020] In this invention, the support roller is rotatably mounted on the support frame via a bearing structure. Therefore, when the circuit board is pushed from the first conveying surface to the second conveying surface, the circuit board will drive the support roller to rotate, thereby effectively reducing the friction on the circuit board and preventing friction damage to the circuit board.

[0021] Furthermore, both the support roller and the conveying roller have a buffer layer on their surfaces.

[0022] In this invention, the rubber layer disposed on the surface of the support roller and the conveying roller can be a rubber layer, such as neoprene rubber, which serves to buffer and protect, as well as to increase friction, so that the conveying roller can smoothly push the circuit board to move on the second conveying surface.

[0023] The principle and effects of this utility model will be further explained below with reference to the above technical solution and the accompanying drawings:

[0024] In this invention, the buffer conveying mechanism is used to receive the circuit board from the first conveying surface. After the circuit board is completely transferred to the second conveying surface, the moving speed of the circuit board is not affected by the first conveying surface. At this time, the circuit board on the second conveying surface can be uniformly transported by the pusher mechanism, and the circuit board can be uniformly transferred to the downstream equipment. It can be seen that this invention can uniformly transfer the circuit board to the downstream equipment, that is, the conveying speed of the circuit board received by the downstream equipment is fixed. Therefore, this invention does not require the downstream equipment to synchronously match the conveying speed of the developing tank, which can reduce the manufacturing cost of the servo control system of the downstream equipment. Attached Figure Description

[0025] Figure 1 This is a top view of the developing tank that can adapt to the developing speed of different colored inks, as described in an embodiment of this utility model.

[0026] Figure 2 This is a side view of the buffer conveying mechanism described in an embodiment of the present invention.

[0027] Figure 3 This is a side view of the buffer conveying mechanism pushing the circuit board according to an embodiment of the present invention.

[0028] 1-Developing tank body, 2-First conveying surface, 3-Support frame, 31-Support roller, 32-Guide column, 321-Sleeve, 4-Mounting frame, 41-Conveying roller, 411-Transmission sprocket, 42-Drive sprocket, 43-Servo motor, 44-Stop bar, 45-Connecting rod. Detailed Implementation

[0029] To facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0030] like Figure 1-3 A developing tank adaptable to different color ink developing speeds includes a developing tank body 1, the developing tank body 1 having a developing conveying mechanism, a first conveying surface 2 horizontally arranged on the developing conveying mechanism for conveying circuit boards, and a downstream end of the developing conveying mechanism extending out of the developing tank body 1; a buffer conveying mechanism is connected to the downstream end of the developing conveying mechanism, the buffer conveying mechanism including a support frame 3, a set of support rollers 31 arranged on the support frame 3 corresponding to the first conveying surface 2, the set of support rollers 31 including a plurality of support rollers 31 rotatably arranged on the support frame 3, the support rollers 31 being located on the same horizontal plane and perpendicular to the conveying direction of the first conveying surface 2; a second conveying surface is formed at the upper end of the set of support rollers 31, at the same horizontal height as the first conveying surface 2, for connecting with the first conveying surface 2; a pusher mechanism is also arranged on the support frame 3 corresponding to the second conveying surface, the pusher mechanism being used to uniformly push the circuit board on the second conveying surface along the conveying direction of the first conveying surface 2.

[0031] In this invention, the developing tank body 1 is used to complete the developing process of the circuit board. Its developing conveying mechanism is used to transport the circuit board during this process, moving it within the developing tank and then transferring it out of the developing tank to a buffer conveying mechanism. The buffer conveying mechanism moves the circuit board to downstream equipment for further processing. Specifically, when the developing conveying mechanism transports the circuit board, the circuit board moves along the conveying direction of the first conveying surface 2.

[0032] In this invention, a buffer conveying mechanism is connected to the downstream end of the developing conveying mechanism. Specifically, the second conveying surface of the buffer conveying mechanism is at the same horizontal level as the first conveying surface 2 and is adjacent to the downstream end of the first conveying surface 2. Therefore, the second conveying surface can smoothly receive the circuit board from the first conveying surface 2. Once the circuit board is completely transferred to the second conveying surface, its moving speed is not affected by the first conveying surface 2. At this point, by pushing the circuit board on the second conveying surface at a uniform speed through a pusher mechanism, uniform speed transportation of the circuit board can be achieved, transferring the circuit board uniformly to the downstream equipment. Thus, this invention can uniformly transfer the circuit board to the downstream equipment; that is, the conveying speed of the circuit board received by the downstream equipment is constant. Therefore, this invention does not require the downstream equipment to synchronously match the conveying speed of the developing tank, thereby reducing the manufacturing cost of the servo control system of the downstream equipment.

[0033] In this invention, it is possible to determine whether the circuit board has been completely transferred to the second conveying surface by setting a sensor, such as a photoelectric sensor or a laser sensor on the mounting bracket 4, to detect whether there is a circuit board on the second conveying surface and to detect the position of the circuit board, thereby determining whether the circuit board has been completely transferred to the second conveying surface.

[0034] In one embodiment, the pusher mechanism includes a mounting frame 4 that is vertically mounted on the support frame 3. A set of conveying rollers 41 is provided on the mounting frame 4 corresponding to the second conveying surface. The set of conveying rollers 41 is located above the corresponding second conveying surface and includes a plurality of conveying rollers 41 that are rotatably mounted on the mounting frame 4. The conveying rollers 41 are located on the same horizontal plane and are parallel to the support roller 31. A drive mechanism is provided on the mounting frame 4 corresponding to the set of conveying rollers 41. The drive mechanism is drivenly connected to the set of conveying rollers 41 to drive the conveying rollers 41 to rotate.

[0035] In this embodiment, the pusher mechanism pushes the circuit board on the second conveying surface through the conveying rollers 41 group on the mounting frame 4. Specifically, by moving the mounting frame 4 downward, the conveying rollers 41 group can press the circuit board firmly onto the second conveying surface. Then, by driving the conveying rollers 41 in the conveying roller group to rotate at a constant speed through the drive mechanism, the circuit board can be moved at a constant speed on the second conveying surface, thus moving the circuit board to the downstream equipment at a constant speed. After the transfer of the circuit board is completed, the mounting frame 4 moves upward and resets, so that it can continue to receive circuit boards from the first conveying surface 2.

[0036] In this embodiment, preferably, the conveying rollers 41 in the conveying roller group 41 are arranged in a one-to-one correspondence with the support rollers 31 in the support roller group 31, and the conveying rollers 41 are located directly above the corresponding support rollers 31, so as to prevent the circuit board from bending and deforming when pressing the circuit board onto the second conveying surface.

[0037] In one embodiment, both ends of the conveying roller 41 are rotatably mounted on the mounting frame 4 via bearing structures. The ends of each conveying roller 41 in the conveying roller 41 group located on the same side are connected to a transmission sprocket 411 via a connecting column. The driving mechanism includes a drive sprocket 42 mounted on the mounting frame 4 via a servo motor 43. The drive sprocket 42 and the transmission sprocket 411 are located at the same horizontal height, and the drive sprocket 42 is connected to the transmission sprocket 411 via a transmission chain.

[0038] In this embodiment, the drive sprocket 42 mounted on the mounting frame 4 is connected to the drive sprocket 411 at the end of the conveying roller 41 via a transmission chain. Therefore, the drive sprocket 42 driven by the servo motor 43 can simultaneously drive all the conveying rollers 41 to rotate at the same speed, thereby realizing the push of the conveying roller group 41 on the circuit board.

[0039] In one embodiment, the mounting frame 4 is vertically and flexibly mounted on the support frame 3 via a lifting mechanism. The lifting mechanism includes at least three vertically arranged guide columns 32, and sleeves 321 are slidably fitted onto the guide columns 32. The sleeves 321 are fixedly connected to the mounting frame 4. The lifting mechanism also includes a drive cylinder mounted on the support frame 3. The power transmission part of the drive cylinder is drivenly connected to the mounting frame 4 via a connecting arm to drive the mounting frame 4 to reciprocate up and down along the guide columns 32.

[0040] In this embodiment, the mounting bracket 4 is slidably connected to the guide post 32 via a sleeve 321. The guide post 32 guides the mounting bracket 4, enabling the drive cylinder to drive the mounting bracket 4 to move vertically. The sleeve 321 can be slidably mounted on the guide post 32 via a linear bearing.

[0041] In one embodiment, a stop bar 44 is also provided on the mounting frame 4 corresponding to the support roller 31 group. The stop bar 44 is fixedly provided on the mounting frame 4 by a connecting rod 45 and is located on the right side of the support roller 31 group. The stop bar 44 is arranged parallel to the support roller 31, and the lower end of the stop bar 44 extends to the bottom of the second conveying surface.

[0042] In this embodiment, when the circuit board on the first conveying surface 2 is conveyed to the second conveying surface, the baffle 44 provided on the mounting frame 4 can block the circuit board on the second conveying surface, preventing the circuit board from moving directly out of the second conveying surface due to inertia.

[0043] In addition, in this embodiment, when the pushing mechanism conveys the circuit board on the second conveying surface, the baffle 44 will move down with the mounting frame 4, so that it can move down to below the second conveying surface. That is, the baffle 44 can automatically release its obstruction to the circuit board when the pushing mechanism pushes the circuit board. The distance between the upper end of the baffle 44 and the second conveying surface needs to be less than the distance between the second conveying surface and the conveying roller 41 group above it.

[0044] In one embodiment, the two ends of the support roller 31 are rotatably mounted on the support frame 3 via a bearing structure.

[0045] In this embodiment, the support roller 31 is rotatably mounted on the support frame 3 via a bearing structure. Therefore, when the circuit board is pushed onto the second conveying surface by the first conveying surface 2, the circuit board will drive the support roller 31 to rotate, which can effectively reduce the friction on the circuit board and prevent friction damage to the circuit board.

[0046] In one embodiment, both the support roller 31 and the conveying roller 41 are provided with a buffer layer on their surfaces.

[0047] In this embodiment, the rubber layer provided on the surface of the support roller 31 and the conveying roller 41 can be a rubber layer, such as neoprene rubber, which serves to buffer and protect, as well as to increase friction, so that the conveying roller 41 can smoothly push the circuit board to move on the second conveying surface.

[0048] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A developing tank capable of adapting to different color ink developing speeds, comprising a developing tank body, the developing tank body having a developing conveying mechanism, a first conveying surface horizontally arranged for conveying a circuit board is formed on the developing conveying mechanism, and a downstream end of the developing conveying mechanism extends out of the developing tank body; characterized in that, The downstream end of the developing conveying mechanism is connected to a buffer conveying mechanism. The buffer conveying mechanism includes a support frame, on which a support roller group is arranged corresponding to the first conveying surface. The support roller group includes several support rollers rotatably arranged on the support frame. The support rollers are located on the same horizontal plane and are arranged perpendicular to the conveying direction of the first conveying surface. The upper end of the support roller group forms a second conveying surface at the same horizontal height as the first conveying surface, which is used to connect with the first conveying surface. A push plate mechanism is also arranged on the support frame corresponding to the second conveying surface. The push plate mechanism is used to push the circuit board on the second conveying surface at a uniform speed along the conveying direction of the first conveying surface.

2. The developing tank adaptable to developing speed of different color inks according to claim 1, wherein The pusher mechanism includes a mounting frame that is vertically mounted on the support frame. A set of conveying rollers is mounted on the mounting frame corresponding to the second conveying surface. The set of conveying rollers is located above the corresponding second conveying surface and includes several conveying rollers that are rotatably mounted on the mounting frame. The conveying rollers are located on the same horizontal plane and are parallel to the support rollers. A drive mechanism is mounted on the mounting frame corresponding to the set of conveying rollers. The drive mechanism is drivenly connected to the set of conveying rollers to drive the conveying rollers to rotate.

3. The developing tank adaptable to developing speed of different color inks according to claim 2, wherein Both ends of the conveying roller are rotatably mounted on the mounting frame via bearing structures. The ends of each conveying roller in the conveying roller group located on the same side are connected to a transmission sprocket via connecting columns. The driving mechanism includes a drive sprocket mounted on the mounting frame via a servo motor. The drive sprocket and the transmission sprocket are located at the same horizontal height, and the drive sprocket is connected to the transmission sprocket via a transmission chain.

4. The developing tank adaptable to developing speed of different color inks according to claim 3, wherein The mounting frame is vertically and flexibly mounted on the support frame via a lifting mechanism. The lifting mechanism includes at least three vertically arranged guide columns, and sleeves are slidably fitted onto the guide columns. The sleeves are fixedly connected to the mounting frame. The lifting mechanism also includes a drive cylinder mounted on the support frame. The power transmission part of the drive cylinder is drivenly connected to the mounting frame via a connecting arm to drive the mounting frame to reciprocate up and down along the guide columns.

5. The developing tank adaptable to different color ink developing speeds according to claim 4, characterized in that, The mounting frame is also provided with a stop bar corresponding to the support roller group. The stop bar is fixedly mounted on the mounting frame by a connecting rod and is located on the right side of the support roller group. The stop bar is arranged parallel to the support roller, and the lower end of the stop bar extends to the bottom of the second conveying surface.

6. The developing tank adaptable to developing speed of different color inks according to claim 1, wherein The two ends of the support roller are rotatably mounted on the support frame via bearing structures.

7. The developing tank adaptable to developing speed of different color inks according to claim 5, wherein Both the support roller and the conveying roller have a buffer layer on their surfaces.

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