Transverse steel belt transmission device

Abstract

The utility model discloses a horizontal type steel belt transmission device which comprises a machine frame, a front transmission wheel and a rear transmission wheel are arranged on the machine frame, a steel belt is sleeved on the front transmission wheel and the rear transmission wheel, and the steel belt is matched with the front transmission wheel and the rear transmission wheel in a transmission mode. A plurality of upper supports which are sequentially distributed in the conveying direction of the steel belt are fixed to the machine frame, a transmission guide rail is fixed to the lower ends of the upper supports and arranged above the steel belt in parallel, a gap is formed between the transmission guide rail and the steel belt, a plurality of rolling wheel supporting plates are evenly distributed and fixed to the surface of the steel belt, and the rolling wheel supporting plates are fixed to the rolling wheel supporting plates. A left idler wheel and a right idler wheel are rotationally connected to the idler wheel supporting plate, the transmission guide rail is clamped between the two idler wheels, and the idler wheels are in rolling fit with the transmission guide rail. According to the utility model, the steel belt can straightly drive the hanging rack of the PCB to be conveyed forwards, and the electroplating quality is prevented from being influenced by deformation and sinking of the steel belt, so that the electroplating uniformity of the PCB is improved.

Description

Technical Field

[0001] The utility model relates to PCB electroplating equipment, in particular to a horizontal steel belt transmission device for conveying hanging racks. Background Art

[0002] During the electroplating process of a PCB board, a transmission mechanism is required to drive the hanging rack loaded with the PCB board to move in the electroplating tank. The existing transmission method is generally a chain type. This chain type transmission method has problems such as transmission accuracy and easy jitter, which directly affect the electroplating quality of the PCB board. In some equipment, a steel belt can also be used as the transmission mechanism of the PCB board hanging rack, and the steel belt is driven to operate by the front and rear transmission wheels. However, due to the long electroplating line and the long conveying distance of the steel belt, problems such as elongation and sinking of the middle part of the steel belt are likely to occur, which cannot ensure the stable conveying of the PCB board and is likely to cause insufficient electroplating uniformity of the PCB board. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a horizontal steel belt transmission device that can ensure the straight operation of the steel belt and improve the electroplating uniformity of the PCB board in view of the deficiencies of the prior art.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions.

[0005] A horizontal steel belt transmission device includes a machine frame. A front transmission wheel and a rear transmission wheel are arranged on the machine frame. A steel belt is sleeved on the front transmission wheel and the rear transmission wheel, and the steel belt is in transmission cooperation with the front transmission wheel and the rear transmission wheel. A plurality of upper brackets are fixedly arranged on the machine frame in sequence along the conveying direction of the steel belt. A transmission guide rail is fixedly arranged at the lower ends of the plurality of upper brackets. The transmission guide rail is arranged parallel to the upper side of the steel belt, and there is a gap between the transmission guide rail and the steel belt. A plurality of roller support plates are evenly and fixedly arranged on the surface of the steel belt. Two left and right rollers are rotatably connected to the roller support plates. The transmission guide rail is clamped between the two rollers, and the rollers are in rolling cooperation with the transmission guide rail.

[0006] Preferably, the transmission guide rail is a guide rail with a "convex" cross-section.

[0007] Preferably, rolling grooves are formed on the outer side walls of the rollers, and the two ends of the transmission guide rail are respectively clamped in the rolling grooves of the two rollers.

[0008] Preferably, two front and rear transmission wheel seats are fixedly arranged on the machine frame. Axle seats are arranged on the transmission wheel seats. The axle rods of the front transmission wheel and the rear transmission wheel are respectively rotatably connected to the axle seats on the two front and rear transmission wheel seats.

[0009] Preferably, the driving wheel seat includes a shaft seat slide rail, the shaft seat is slidably connected to the shaft seat slide rail, a tension adjusting rod extending in the front-rear direction is penetrated through the driving wheel seat, one end of the tension adjusting rod is in threaded cooperation with the driving wheel seat, and the other end of the tension adjusting rod is in rotational cooperation with the shaft seat.

[0010] Preferably, angle encoders are installed on the shaft rods of the front driving wheel and the rear driving wheel.

[0011] In the horizontal steel belt transmission device disclosed by the present utility model, the steel belt is tightly sleeved outside the front driving wheel and the rear driving wheel. The front driving wheel or the rear driving wheel is driven to operate by a power mechanism, thereby driving the steel belt to convey and move. Meanwhile, the transmission guide rail is fixedly installed on the frame through a plurality of upper brackets. A plurality of roller support plates are evenly distributed on the surface of the steel belt along its length direction. The left and right rollers on the roller support plate are clamped on the left and right sides of the transmission guide rail. Based on the rolling cooperation between the rollers and the transmission guide rail, the steel belt is kept parallel to the transmission guide rail, so that the steel belt can drive the hanger of the PCB board to be conveyed forward flatly, avoiding affecting the electroplating quality due to the deformation and sinking of the steel belt, thereby improving the electroplating uniformity of the PCB board. Description of the Drawings

[0012] Figure 1 is a perspective view of the horizontal steel belt transmission device of the present utility model;

[0013] Figure 2 is Figure 1 an enlarged view of part A in

[0014] Figure 3 is an exploded view of the steel belt, the upper bracket and the transmission guide rail;

[0015] Figure 4 is a partial enlarged view of the horizontal steel belt transmission device of the present utility model. Detailed Embodiments

[0016] The present utility model will be described in more detail below with reference to the drawings and embodiments.

[0017] The present utility model discloses a horizontal steel belt transmission device, in combination with Figures 1 to 4As shown in the figure, it includes a machine frame 1, on which a front drive wheel 2 and a rear drive wheel 3 are provided. A steel belt 4 is sleeved on the front drive wheel 2 and the rear drive wheel 3, and the steel belt 4 is in transmission cooperation with the front drive wheel 2 and the rear drive wheel 3. A plurality of upper brackets 5 are fixed on the machine frame 1 and distributed in sequence along the conveying direction of the steel belt 4. The lower ends of the plurality of upper brackets 5 are fixed with a transmission guide rail 6. The transmission guide rail 6 is arranged parallel to the upper part of the steel belt 4, and there is a gap between the transmission guide rail 6 and the steel belt 4. A plurality of roller support plates 40 are evenly fixed on the surface of the steel belt 4. Two left and right rollers 41 are rotatably connected to the roller support plates 40. The transmission guide rail 6 is clamped between the two rollers 41, and the roller 41 is in rolling cooperation with the transmission guide rail 6.

[0018] In the above structure, the steel belt 4 is tightly sleeved on the outer sides of the front drive wheel 2 and the rear drive wheel 3. The front drive wheel 2 or the rear drive wheel 3 is driven to rotate by a power mechanism, and then the steel belt 4 is driven to convey. At the same time, the transmission guide rail 6 is fixedly installed on the machine frame 1 through a plurality of upper brackets 5. A plurality of roller support plates 40 are evenly distributed along the length direction of the surface of the steel belt 4. The two left and right rollers 41 on the roller support plates 40 are clamped on the left and right sides of the transmission guide rail 6. Based on the rolling cooperation between the roller 41 and the transmission guide rail 6, the steel belt 4 is kept parallel to the transmission guide rail 6, and then the steel belt 4 drives the hanger of the PCB board to convey forward flatly, avoiding affecting the electroplating quality due to the deformation and sinking of the steel belt 4, thereby improving the electroplating uniformity of the PCB board.

[0019] As a preferred method, please refer to Figure 2 , the transmission guide rail 6 is a guide rail with a "convex" cross-section. Further, a rolling groove 42 is formed on the outer side wall of the roller 41, and both ends of the transmission guide rail 6 are respectively clamped in the rolling grooves 42 of the two rollers 41.

[0020] In the above structure, the top of the "convex" guide rail is used to fixedly connect the upper bracket 5. The left and right side edges of the transmission guide rail 6 are used to be inserted into the rolling grooves 42 on the outer sides of the rollers 41. Through the two opposite rolling grooves 42, the transmission guide rail 6 can be limited to each other, avoiding the transmission guide rail 6 from slipping out of the two rollers 41. In addition, the above "convex" guide rail also has a strong bearing capacity.

[0021] Combined with Figures 1 to 4As shown, in this embodiment, there are two drive wheel seats 7 fixed on the frame 1, an axle seat 8 is provided on the drive wheel seat 7, and the axle rods of the front drive wheel 2 and the rear drive wheel 3 are respectively rotatably connected to the axle seats 8 on the two drive wheel seats 7 at the front and the rear. Among them, each drive wheel seat 7 uses two axle seats 8 on the left and right to install and support the axle rods of the front drive wheel 2 and the rear drive wheel 3.

[0022] On this basis, the drive wheel seat 7 includes an axle seat slide rail 70, the axle seat 8 is slidably connected to the axle seat slide rail 70, a tension adjustment rod 80 extending in the front-rear direction is penetrated through the drive wheel seat 7, one end of the tension adjustment rod 80 is in threaded cooperation with the drive wheel seat 7, and the other end of the tension adjustment rod 80 is in rotational cooperation with the axle seat 8.

[0023] In the above structure, when the cooperation between the steel belt 4 and the front drive wheel 2 and the rear drive wheel 3 is not tight enough, simply screwing the tension adjustment rod 80 can make the tension adjustment rod 80 feed relative to the drive wheel seat 7, and its other end can further tighten the axle seat 8, so as to play a role in tension adjustment for the front drive wheel 2 and the rear drive wheel 3.

[0024] In order to facilitate the detection of the rotation angle of the front and rear drive wheels, in this embodiment, please refer to Figure 2 , angle encoders 9 are installed on the axle rods of the front drive wheel 2 and the rear drive wheel 3.

[0025] The above is only a preferred embodiment of the present invention and is not used to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention shall be included within the scope protected by the present invention.

Claims

1. A horizontal steel belt transmission device, characterized in that, It includes a machine frame (1), on which a front driving wheel (2) and a rear driving wheel (3) are provided. A steel belt (4) is sleeved on the front driving wheel (2) and the rear driving wheel (3), and the steel belt (4) is in driving cooperation with the front driving wheel (2) and the rear driving wheel (3). A plurality of upper brackets (5) are fixedly arranged on the machine frame (1) in sequence along the conveying direction of the steel belt (4). The lower ends of the plurality of upper brackets (5) are fixedly provided with a driving guide rail (6). The driving guide rail (6) is arranged parallel to the upper part of the steel belt (4), and there is a gap between the driving guide rail (6) and the steel belt (4). A plurality of roller support plates (40) are evenly and fixedly arranged on the surface of the steel belt (4). Two left and right rollers (41) are rotatably connected to the roller support plate (40). The driving guide rail (6) is clamped between the two rollers (41), and the roller (41) is in rolling cooperation with the driving guide rail (6).

2. The horizontal steel belt transmission device according to claim 1, characterized in that, The driving guide rail (6) is a guide rail with a "convex" cross-section.

3. The horizontal steel belt transmission device according to claim 2, characterized in that, A rolling groove (42) is formed on the outer side wall of the roller (41), and the two ends of the driving guide rail (6) are respectively clamped in the rolling grooves (42) of the two rollers (41).

4. The horizontal steel belt transmission device according to claim 1, characterized in that, Two front and rear driving wheel seats (7) are fixedly arranged on the machine frame (1). A shaft seat (8) is provided on the driving wheel seat (7). The shaft rods of the front driving wheel (2) and the rear driving wheel (3) are respectively rotatably connected to the shaft seats (8) on the two front and rear driving wheel seats (7).

5. The horizontal steel belt transmission device according to claim 4, wherein, The driving wheel seat (7) includes a shaft seat slide rail (70). The shaft seat (8) is slidably connected to the shaft seat slide rail (70). A tensioning adjustment rod (80) extending in the front and rear directions is penetrated through the driving wheel seat (7). One end of the tensioning adjustment rod (80) is in threaded cooperation with the driving wheel seat (7), and the other end of the tensioning adjustment rod (80) is in rotational cooperation with the shaft seat (8).

6. The horizontal steel belt transmission device according to claim 1, characterized in that, Angle encoders (9) are installed on the shaft rods of the front driving wheel (2) and the rear driving wheel (3).

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