Circuit board steel plate mask tensioning adjusting mechanism

Abstract

The utility model provides a circuit board steel plate mask tensioning adjusting mechanism, which relates to the technical field of circuit board manufacturing equipment and comprises a fixing mechanism, a tensioning mechanism is arranged on the inner surface wall of the fixing mechanism and comprises a fixing plate, two movable grooves are formed in one side of the outer wall of the fixing plate, and guide rollers are movably inserted into the inner surface walls of the two movable grooves. A third sliding groove is formed in one side of the outer wall of the fixing plate, and a second sliding block is slidably embedded in the inner surface wall of the third sliding groove. According to the utility model, under the mutual cooperation of the fixing mechanism and the tensioning mechanism, the accurate regulation and control of the mask tension are realized, the stability and continuity of the mask transmission process are ensured, and the film can be uniformly transmitted without wrinkles, so that the transmission precision and the processing quality of the circuit board steel plate mask are improved, and the production efficiency is improved. In the subsequent processing processes of etching, electroplating and the like, the problems of circuit pattern precision damage and abnormal circuit connection are effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing equipment technology, and in particular to a circuit board steel mask tensioning adjustment mechanism. Background Technology

[0002] Circuit board steel is a special type of metal sheet with excellent electrical conductivity, thermal conductivity, and mechanical strength. Its surface is flat and smooth, making it an important basic material for constructing circuit board patterns and carrying electronic components.

[0003] In the photolithography and etching manufacturing process, circuit board steel plates generally need to be coated with dry film. The dry film is firmly bonded to the steel plate by means of hot pressing or vacuum bonding. With the good light-blocking and corrosion resistance of the dry film, it ensures that a precise circuit pattern is formed after exposure and development, effectively preventing the etching solution from eroding specific areas, ensuring the high-precision forming of circuit board lines, and enhancing its electrical performance and reliability.

[0004] However, existing circuit board stencil masks have the following shortcomings:

[0005] In the prior art, due to differences in the material properties of the mask film, such as uneven elastic modulus, or external forces such as mechanical pressure and temperature changes during manufacturing, storage, and transportation, the film tension is easily uneven. This tension difference makes it impossible for the mask to adhere evenly and stably when it is bonded to the steel plate, resulting in phenomena such as bulging, inconsistent stretching, and edge curling. Consequently, during etching, electroplating, and other processing, the accuracy of the circuit pattern is damaged and the circuit connection is abnormal.

[0006] Therefore, we propose a circuit board steel mask tensioning adjustment mechanism to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a circuit board steel plate mask tensioning adjustment mechanism, which uses a drive motor to drive a set of rotating blades to rotate at high speed, thereby providing propulsion power to the monitoring vessel based on the principles of fluid mechanics. At the same time, through a servo motor drive combined with a worm gear transmission mechanism, the direction of the fan assembly can be adjusted, thereby changing the hull's sailing direction, thus solving the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a circuit board steel mask tensioning adjustment mechanism, including a fixing mechanism, wherein a tensioning mechanism is provided on the inner surface wall of the fixing mechanism;

[0009] The tensioning mechanism includes a fixed plate. Two movable grooves are formed on one side of the outer wall of the fixed plate. Guide rollers are movably inserted into the inner surface of each of the two movable grooves. A third sliding groove is formed on one side of the outer wall of the fixed plate. A second slider is slidably embedded in the inner surface of the third sliding groove. A mounting bracket is fixedly connected to one side of the outer wall of the second slider. Two fourth sliding grooves are formed on the outer wall of the mounting bracket. Two sliding plates are slidably embedded between the inner surface of the two fourth sliding grooves. A tension sensor is fixedly installed on the top of one of the two sliding plates. An adjusting roller is movably inserted into the inner surface of the tension sensor.

[0010] Preferably, two buffer springs are fixedly connected between the outer walls of the two slides, a first bearing is fixedly inserted into the inner wall of the other slide, an adjusting screw is fixedly inserted into the first bearing, and the inner wall of the mounting bracket is threadedly connected to the outer wall of the adjusting screw. A knob is fixedly connected to the bottom of the adjusting screw.

[0011] Preferably, the inner surface of the second slider is threaded with a threaded rod, the outer surface of the threaded rod is fixedly sleeved with a worm gear, the outer surface of the worm gear is meshed with a worm, a drive motor is fixedly connected to one side of the outer surface of the worm, two bearing seats are fixedly sleeved on the outer surface of the worm, two second bearings are fixedly sleeved on the outer surface of the threaded rod, and the outer surfaces of the two second bearings are fixedly inserted into the interior of the fixed plate. The outer surface of the fixed plate has two limiting grooves.

[0012] Preferably, the fixing mechanism includes a base plate, the top of which has a slot, and the top of which has two first sliding grooves, the inner surface of which is slidably fitted with a first slider.

[0013] Preferably, a return spring is fixedly connected to one side of the outer wall of each of the two first sliders, a limit block is fixedly connected to the other side of the outer wall of each of the two first sliders, and a second groove is provided on the top of each of the two first sliders.

[0014] Preferably, the inner walls of the two second sliding grooves are slidably fitted with movable blocks, the inner wall of the base plate has two positioning grooves, and the top of the base plate has two mounting holes.

[0015] Preferably, the outer walls of the two limiting blocks are movably inserted into the two limiting grooves, and the outer wall of the fixing plate is movably inserted into the slot.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In this utility model, by cooperating with the fixing mechanism and the tensioning mechanism, the tension sensor monitors the tension changes in the masking process in real time. The drive motor, combined with a worm gear transmission mechanism, allows for flexible adjustment of the distance between the adjusting roller and the guide roller, thereby changing the wrap angle of the mask during transmission. Furthermore, the buffer assembly automatically balances the tension fluctuations of the mask, providing an adaptive adjustment mechanism for the entire system. This method enables precise control of the mask tension, ensuring the stability and continuity of the mask transmission process. It allows the film to be transmitted uniformly and without wrinkles, thus improving the transmission accuracy and processing quality of the circuit board stencil mask. In subsequent processing such as etching and electroplating, it effectively avoids problems such as damage to circuit pattern accuracy and abnormal circuit connections.

[0018] 2. In this utility model, through the cooperation of the fixing mechanism and the tensioning mechanism, and utilizing the interlocking design of the fixing components, the tensioning mechanism achieves a quick assembly and disassembly function, which greatly facilitates the operation. Operators can quickly and easily assemble and disassemble the tensioning mechanism according to actual production needs or maintenance plans, enabling timely equipment adjustments and maintenance. Attached Figure Description

[0019] Figure 1 This utility model provides a front view perspective view of a circuit board steel plate mask tensioning adjustment mechanism;

[0020] Figure 2 A perspective view of the fixing body mechanism of the circuit board steel plate mask tensioning adjustment mechanism is provided for this utility model;

[0021] Figure 3 This utility model provides a sectional perspective exploded view of the fixing mechanism of a circuit board steel plate mask tensioning adjustment mechanism;

[0022] Figure 4 This utility model provides a three-dimensional exploded view of the tensioning mechanism of a circuit board steel mask tensioning adjustment mechanism;

[0023] Figure 5 This utility model provides a bottom-view three-dimensional exploded view of the tensioning mechanism of a circuit board steel mask tensioning adjustment mechanism.

[0024] Figure 6 This utility model provides a three-dimensional exploded view of the tensioning mechanism of a circuit board steel mask tensioning adjustment mechanism.

[0025] Legend: 1. Fixing mechanism; 101. Base plate; 102. Slot; 103. First slide groove; 104. First slider; 105. Return spring; 106. Limiting block; 107. Second slide groove; 108. Movable block; 109. Positioning groove; 110. Mounting hole; 2. Tensioning mechanism; 201. Fixing plate; 202. Movable groove; 203. Guide roller; 204. Third slide groove; 205. Second slider; 206. Mounting bracket; 207. Fourth slide groove; 208. Slide plate; 209. Tension sensor; 210. Adjusting roller; 211. Buffer spring; 212. First bearing; 213. Adjusting screw; 214. Knob; 215. Threaded rod; 216. Worm gear; 217. Worm; 218. Drive motor; 219. Bearing seat; 220. Second bearing; 221. Limiting groove. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Example 1, as shown in the attached document Figure 1 - Appendix Figure 6 As shown, this utility model provides a technical solution: a circuit board steel mask tensioning adjustment mechanism, including a fixing mechanism 1, and a tensioning mechanism 2 is provided on the inner surface wall of the fixing mechanism 1;

[0029] The tensioning mechanism 2 includes a fixed plate 201. Two movable grooves 202 are formed on one side of the outer wall of the fixed plate 201. Guide rollers 203 are movably inserted into the inner surface of each of the two movable grooves 202. A third sliding groove 204 is formed on one side of the outer wall of the fixed plate 201. A second slider 205 is slidably embedded in the inner surface of the third sliding groove 204. A mounting bracket 206 is fixedly connected to one side of the outer wall of the second slider 205. Two fourth sliding grooves 207 are formed on the outer surface of the mounting bracket 206. Two sliding plates 208 are slidably embedded between the inner surface of the two fourth sliding grooves 207. A tension sensor 209 is fixedly installed on the top of one of the two sliding plates 208. An adjusting roller 210 is movably inserted into the inner surface of the tension sensor 209. Two buffer springs 211 are fixedly connected between the outer surface of the two sliding plates 208. The other sliding plate 208... The inner surface of the mounting bracket 206 is fixedly inserted with a first bearing 212, and an adjusting screw 213 is fixedly inserted inside the first bearing 212. The inner surface of the mounting bracket 206 is threadedly connected to the outer surface of the adjusting screw 213. A knob 214 is fixedly connected to the bottom of the adjusting screw 213. The inner surface of the second slider 205 is threadedly connected with a threaded rod 215. A worm gear 216 is fixedly sleeved on the outer surface of the threaded rod 215. A worm 217 is meshed on the outer surface of the worm gear 216. A drive motor 218 is fixedly connected to one side of the outer wall of the worm 217. Two bearing seats 219 are fixedly sleeved on the outer surface of the worm 217. Two second bearings 220 are fixedly sleeved on the outer surface of the threaded rod 215. The outer surfaces of the two second bearings 220 are fixedly inserted inside the fixing plate 201. Two limiting grooves 221 are opened on the outer surface of the fixing plate 201.

[0030] The overall effect achieved in Embodiment 1 is as follows: the film first passes through the bottom of a guide roller 203, then enters the top of the adjusting roller 210, and finally completes the path setting at the bottom of another guide roller 203. This process forms a stable transmission channel, ensuring that the film is transmitted at a constant speed and direction. During film transmission, the tension sensor 209 monitors the tension state of the film in real time. If the tension is too high or too low, i.e., deviating from the preset range, the drive motor 218, combined with the transmission of the worm gear 216 and worm 217, causes the threaded rod 215 to drive the second slider 205 to move flexibly in the vertical direction. The movement of the second slider 205 then drives the adjusting roller 210 to rise and fall synchronously, thereby dynamically changing the distance between the adjusting roller 210 and the two guide rollers 203. Through this adjustment... This method can change the wrap angle of the mask during transport, thereby achieving precise adjustment of the mask tension and ensuring the stability and continuity of the masking process. This allows the film to be transported uniformly and without wrinkles. In addition, during film transport, the two buffer springs 211 play a crucial buffering role. Utilizing the elastic characteristics of the springs, they can automatically balance the tension fluctuations of the mask to a certain extent. Especially when the mask transport speed changes or encounters slight external interference, the springs can respond quickly, effectively reducing the adverse effects of instantaneous tension changes on mask quality. By rotating the knob 214, using the threaded transmission mechanism, the user can easily adjust the compression degree of the two buffer springs 211, thereby adjusting the spring preload. This allows for flexible adjustments based on specific process requirements and film characteristics to achieve the best tension control effect.

[0031] Example 2, as Figure 2-6 As shown, the fixing mechanism 1 includes a base plate 101, a slot 102 on the top of the base plate 101, two first sliding grooves 103 on the top of the base plate 101, a first slider 104 slidably embedded in the inner wall of each of the two first sliding grooves 103, a return spring 105 fixedly connected to one side of the outer wall of each of the two first sliders 104, a limit block 106 fixedly connected to the other side of the outer wall of each of the two first sliders 104, a second sliding groove 107 on the top of each of the two first sliders 104, a movable block 108 slidably embedded in the inner wall of each of the two second sliding grooves 107, two positioning grooves 109 on the inner wall of the base plate 101, two mounting holes 110 on the top of the base plate 101, the outer walls of the two limit blocks 106 movably inserted into the interior of the two limit grooves 221, and the outer wall of the fixing plate 201 movably inserted into the interior of the slot 102.

[0032] The overall effect of Embodiment 2 is as follows: First, bolts are passed through the two mounting holes 110 on the top of the base plate 101, and the tension adjustment structure is firmly fixed to the designated installation position of the masking equipment using bolts. When it is necessary to install or remove the tensioning mechanism 2 for maintenance, replacement or other related operations, the two movable blocks 108 are pulled first. The movable blocks 108 drive the first slider 104 to move smoothly inside the first slide groove 103. As the first slider 104 moves, the limiting block 106 on one side of its outer wall will also move out of the corresponding limiting groove 221. When the movable block 108 When one end of the movable block 108 corresponds to the position of the positioning groove 109, the user moves the movable block 108 so that it moves inside the second slide groove 107 until one end of the movable block 108 is engaged inside the corresponding positioning groove 109, ensuring that the first slider 104 and its limiting block 106 can maintain a fixed position and no longer move. At this time, the user can easily remove the fixing plate 201 to maintain, replace or perform other necessary operations on the tensioning mechanism 2. This quick disassembly method provides operators with more flexibility, enabling them to make timely equipment adjustments and maintenance according to actual needs.

[0033] The working principle of the entire device is as follows: In use, firstly, the tension adjustment structure is precisely fixed to the predetermined installation position of the masking equipment by bolts passing through the two mounting holes 110 on the top of the base plate 101. Then, the signal output terminal of the sensor assembly is connected to the signal acquisition terminal of the masking equipment's control system to ensure unimpeded communication between the two. Next, the user guides the film through the bottom of a guide roller 203, then into the top area of ​​the adjusting roller 210, and finally through the bottom of another guide roller 203, forming a continuous transmission path. This transmission method ensures that the film maintains stable tension and path during transmission, thereby meeting the precise control requirements of the production process. During film transport, tension sensor 209 monitors the film tension in real time. If excessive or insufficient tension is detected, the mask equipment control system activates drive motor 218. The output of drive motor 218 drives worm gear 217 to rotate, which in turn drives worm wheel 216 and threaded rod 215 to rotate. Threaded rod 215 then drives second slider 205 and adjusting roller 210 to move synchronously up and down, thereby changing the distance between adjusting roller 210 and the two guide rollers 203. This adjustment allows for flexible changes in the mask's wrap angle during transport, thus achieving precise adjustment of mask tension. During film transport, two buffer springs 211 play a crucial buffering role. It can automatically balance the tension fluctuations of the mask to a certain extent, providing an adaptive adjustment mechanism for the mechanism. In addition, by rotating the knob 214 and using the threaded transmission mechanism, the compression degree of the two buffer springs 211 can be adjusted, thereby flexibly adjusting its buffering force. This adjustment mechanism allows the tensioning mechanism 2 to be customized according to specific process requirements and film characteristics. When it is necessary to install or remove the tensioning mechanism 2 for maintenance or other operations, firstly pull the two movable blocks 108. The movable blocks 108 will drive the first slider 104 to move smoothly inside the first slide groove 103, thereby causing the limiting block 106 to move out of the limiting groove 221. Subsequently, by moving the movable blocks 108... One end of the first slider 104 is inserted into the corresponding positioning groove 109 to keep the first slider 104 and the limiting block 106 in a fixed state. At this time, the fixing plate 201 can be removed from the slot 102 for necessary maintenance or replacement. During the movement of the first slider 104, the corresponding return spring 105 will be squeezed. When the tensioning mechanism 2 is reinstalled, simply insert the fixing plate 201 into the slot 102 and move the two movable blocks 108 so that one end of them moves out of the corresponding positioning groove 109. At this time, under the elastic restoring force of the two return springs 105, the two limiting blocks 106 will quickly be inserted into the corresponding limiting groove 221, thereby achieving rapid and stable fixation of the mechanism.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A circuit board steel mask tensioning adjustment mechanism, characterized in that: It includes a fixing mechanism (1), and a tensioning mechanism (2) is provided on the inner surface wall of the fixing mechanism (1); The tensioning mechanism (2) includes a fixed plate (201). Two movable grooves (202) are opened on one side of the outer wall of the fixed plate (201). Guide rollers (203) are movably inserted into the inner surface of the two movable grooves (202). A third sliding groove (204) is opened on one side of the outer wall of the fixed plate (201). A second slider (205) is slidably embedded in the inner surface of the third sliding groove (204). A mounting bracket (206) is fixedly connected to one side of the outer wall of the second slider (205). Two fourth sliding grooves (207) are opened on the outer surface of the mounting bracket (206). Two sliding plates (208) are slidably embedded between the inner surface of the two fourth sliding grooves (207). A tension sensor (209) is fixedly installed on the top of one of the two sliding plates (208). An adjusting roller (210) is movably inserted into the inner surface of the tension sensor (209).

2. The circuit board steel mask tensioning adjustment mechanism according to claim 1, characterized in that: Two buffer springs (211) are fixedly connected between the outer walls of the two slide plates (208). A first bearing (212) is fixedly inserted into the inner wall of the other slide plate (208). An adjusting screw (213) is fixedly inserted into the inside of the first bearing (212). The inner wall of the mounting bracket (206) is threadedly connected to the outer wall of the adjusting screw (213). A knob (214) is fixedly connected to the bottom of the adjusting screw (213).

3. The circuit board steel mask tensioning adjustment mechanism according to claim 2, characterized in that: The inner surface of the second slider (205) is threaded with a threaded rod (215). The outer surface of the threaded rod (215) is fixedly fitted with a worm gear (216). The outer surface of the worm gear (216) is meshed with a worm (217). A drive motor (218) is fixedly connected to one side of the outer surface of the worm (217). The outer surface of the worm (217) is fixedly fitted with two bearing seats (219). The outer surface of the threaded rod (215) is fixedly fitted with two second bearings (220). The outer surface of the two second bearings (220) is fixedly inserted into the interior of the fixed plate (201). The outer surface of the fixed plate (201) has two limiting grooves (221).

4. The circuit board steel mask tensioning adjustment mechanism according to claim 3, characterized in that: The fixing mechanism (1) includes a base plate (101), the top of the base plate (101) is provided with a slot (102), and the top of the base plate (101) is provided with two first sliding grooves (103), and the inner surface of the two first sliding grooves (103) is slidably embedded with a first slider (104).

5. The circuit board steel mask tensioning adjustment mechanism according to claim 4, characterized in that: A return spring (105) is fixedly connected to one side of the outer wall of each of the two first sliders (104), and a limit block (106) is fixedly connected to the other side of the outer wall of each of the two first sliders (104). A second groove (107) is opened on the top of each of the two first sliders (104).

6. The circuit board steel mask tensioning adjustment mechanism according to claim 5, characterized in that: The inner walls of the two second slide grooves (107) are slidably fitted with movable blocks (108), the inner walls of the base plate (101) are provided with two positioning grooves (109), and the top of the base plate (101) is provided with two mounting holes (110).

7. The circuit board stencil mask tensioning adjustment mechanism according to claim 6, characterized in that: The outer walls of the two limiting blocks (106) are movably inserted into the two limiting grooves (221), and the outer wall of the fixing plate (201) is movably inserted into the slot (102).

Images