Conveying device for PCB (Printed Circuit Board) surface mounting

Abstract

The utility model discloses a transmission device for PCB surface mounting, which comprises a supporting frame, gear rollers are symmetrically and rotatably connected in the supporting frame, a tooth conveying belt is connected between the outer sides of the gear rollers in a meshed manner, a rubber pad is arranged on the outer side of the tooth conveying belt, and a servo motor is mounted at one end of each gear roller; an adjusting mechanism is arranged at the bottom end of the supporting frame, and limiting assemblies are arranged on the outer sides of rubber pads. Wherein the adjusting mechanism comprises a bottom plate arranged at the bottom end of the supporting frame, and two groups of supporting columns are symmetrically mounted at the top end of the bottom plate, so that four lifting rods synchronously move up and down, the effect of quickly adjusting the height of the supporting frame can be achieved, and a worker can conveniently adjust and adapt according to the height of the surface mounting equipment; and therefore, the use flexibility of the device can be greatly improved, time and labor are saved, and convenience is brought to workers during use.

Description

Technical Field

[0001] This utility model relates to the field of PCB board processing technology, specifically to a PCB board mounting transmission device. Background Technology

[0002] During the production and processing of PCB boards, a surface mount technology (SMT) process is required. During SMT, a conveyor device is used to transport the PCB boards one by one to the SMT equipment.

[0003] Publication No. CN212876544U discloses a PCB board chip feeding machine. This device, through the setting of a lifting rod and a sleeve, allows for height adjustment by unscrewing a limiting rod and screwing in another limiting rod aligned with a limiting hole. This facilitates height adjustment, enabling the device to feed PCB boards of different heights and models, effectively reducing operating costs and enhancing practicality. The rubber pads increase friction on the conveyor belt surface, preventing slippage during PCB feeding. The rubber pads also ensure soft contact between the conveyor belt and the PCB board, preventing scratches and improving performance. However, this patent still has the following problems in practical use:

[0004] This device, with its lifting rod and sleeve, allows for easy height adjustment by unscrewing the limiting rod and screwing in the limiting rod, aligning it with another limiting hole. This enables the device to feed PCB board mounting devices of different heights and models. However, adjusting the height of the conveyor structure requires constant adjustment of the limiting rod and limiting hole, and additional personnel are needed to support the device during height adjustment to prevent it from tipping over. This significantly reduces the device's adjustment flexibility and causes inconvenience for operators.

[0005] A transfer device for PCB board mounting is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a conveying device for PCB board placement, to solve the problems mentioned in the background art. Currently, the device uses a lifting rod and sleeve. During use, the device is adjusted to the desired height by unscrewing the limiting rod and screwing in the limiting rod, aligning it with another limiting hole. This allows the device to feed PCB boards of different heights and models. However, adjusting the height of the conveying structure requires constant adjustment of the limiting rod and limiting hole, and other personnel are needed to support the device to prevent it from tipping over. This greatly reduces the device's adjustment flexibility and causes inconvenience for operators.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a PCB board mounting conveyor, comprising a support frame, wherein gear rollers are symmetrically rotatably connected inside the support frame, and toothed conveyor belts are meshed between the outer sides of the gear rollers, and rubber pads are provided on the outer side of the toothed conveyor belts, and a servo motor is installed at one end of the gear rollers; an adjustment mechanism is provided at the bottom end of the support frame, and limit components are provided on the outer side of each rubber pad;

[0008] The adjustment mechanism includes a base plate disposed at the bottom of the support frame, two sets of support columns symmetrically installed at the top of the base plate, a fixed box installed inside the bottom of the support columns, a support box installed at the top of the base plate, a transmission rod rotatably connected between the support box, support columns and fixed box, a lifting rod slidably connected inside the top of the support columns, a screw rotatably connected between the support column and the fixed box, the top of the screw being threadedly connected inside the lifting rod, a worm gear rotatably connected between the support box and the base plate, a worm wheel installed on the outer side of the center of the transmission rod, a forward and reverse motor installed at the top of the worm gear, first rotating teeth symmetrically installed at both ends of the transmission rod, a second rotating tooth installed at the bottom of the screw, sprockets symmetrically installed on the outer side of the transmission rod, and a chain meshing between the outer sides of the sprockets.

[0009] Preferably, a retractable rod is symmetrically installed between the support frame and the base plate, and a first telescopic spring is sleeved on the outer side of the retractable rod.

[0010] Preferably, the limiting component includes a fixing block, and the fixing blocks are all installed on the outside of the rubber pad. The top of the fixing block is provided with a mounting frame, and the bottom of the mounting frame is symmetrically provided with insert blocks. The insert blocks are inserted into the inside of the top of the fixing block. The inner side of the mounting frame is symmetrically provided with telescopic rods, and the outer side of the telescopic rods is sleeved with a second telescopic spring. One end of the telescopic rod is provided with a push plate, and the top inner side of the push plate is provided with a rubber sleeve.

[0011] Preferably, fixing tubes are symmetrically installed on both sides of the fixing block, and a protrusion is slidably connected to one end of the fixing tube. A third telescopic spring is provided inside the fixing tube, and grooves are symmetrically opened on both sides of the insertion block, with the protrusion and the groove being inserted into each other.

[0012] Preferably, the outer side of the transmission rod is engaged with a limiting sleeve, and the bottom end of the limiting sleeve is fixedly connected to the base plate.

[0013] Preferably, the worm and the worm wheel are meshed together.

[0014] Preferably, the first rotating tooth and the second rotating tooth are meshed together.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: A PCB board mounting transmission device is described, in detail, as follows: When the operator starts a forward and reverse motor, it drives the worm gear to rotate. The rotation of the worm gear drives the rotation of the worm wheel, which in turn drives the rotation of the transmission rod. Through the cooperation between the sprocket and the chain, two sets of transmission rods rotate synchronously. The rotation of the transmission rod drives the rotation of two sets of first rotating teeth, which in turn drives the rotation of second rotating teeth. The rotation of the screw causes the lifting rod to slide inside the support column, thereby enabling the four lifting rods to move up and down synchronously. This allows for rapid adjustment of the support frame height, facilitating adjustments by the operator according to the height of the mounting equipment. This significantly improves the flexibility of the device during use, saving time and effort and providing convenience for operators. Operators press the two sets of push plates, which slide inside the mounting frame. At this time, the two sets of telescopic rods and the second telescopic spring retract. The operator then places the PCB board between the top of the push plates. Releasing the push plates allows the two sets of push plates to move closer together due to the contraction of the second telescopic spring. The rubber sleeve then compresses and limits the ends of the PCB board, achieving rapid and stable PCB board positioning and transport. This design can accommodate various PCB board specifications and provides a more convenient solution compared to existing technologies where PCB board misalignment can cause scratches.

[0016] 1. The operator starts the forward and reverse motors, which drive the worm gear to rotate. The worm gear rotates, which in turn drives the transmission rod to rotate. The transmission rod rotates, which in turn drives the sprocket to rotate. Through the cooperation between the sprocket and the chain, the two sets of transmission rods rotate synchronously. The rotation of the transmission rods drives the rotation of the two sets of first rotating teeth, which in turn drives the rotation of the second rotating teeth. The rotation of the second rotating teeth drives the rotation of the screw, which causes the lifting rods to slide inside the support column. This allows the four lifting rods to move up and down synchronously, thus achieving a rapid adjustment of the support frame height. This allows the operator to easily adjust the height according to the height of the patch device, greatly improving the flexibility of the device during use, saving time and effort, and providing convenience for the operator. When the distance between the support frame and the base plate changes, the retractable rod and the first telescopic spring extend or return to their original positions. The first telescopic spring then buffers the moving support frame, improving the stability of the support frame during use.

[0017] 2. The operator inserts the insert block into the fixed block, then presses the two sets of push plates to slide inside the mounting frame. At this time, the two sets of telescopic rods and the second telescopic spring retract. The operator then places the PCB board between the top of the push plates. The operator releases the push plates, and the retraction of the second telescopic spring causes the two sets of push plates to move closer together. At this time, the rubber sleeve squeezes and limits the ends of the PCB board. The operator then operates the controller to make the servo motor run intermittently, which causes the gear roller to drive the toothed conveyor belt to rotate and run intermittently. This achieves the effect of quickly limiting and stably conveying the PCB board, and can meet the limiting and conveying effect of PCB boards of various specifications. Compared with the existing technology, which may cause scratches when the PCB board is misaligned, this provides convenience for the operator. When the operator inserts the insert block into the fixed block, the insert block squeezes the protrusion block, which then retracts into the fixed tube. At this time, the third telescopic spring retracts. When the insert block is fully inserted into the fixed block, the third telescopic spring quickly extends and resets, so that the protrusion block and the groove are inserted into each other. This makes the mounting frame more stable and prevents the PCB board from falling off. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 2 This is a top view of the overall structure of the adjustment mechanism in this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the limiting component in this utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the overall operating structure of this utility model.

[0023] In the diagram: 1. Support frame; 101. Gear roller; 102. Toothed conveyor belt; 103. Rubber pad; 104. Servo motor; 2. Adjustment mechanism; 201. Base plate; 202. Support column; 203. Fixing box; 204. Support box; 205. Transmission rod; 206. Lifting rod; 207. Screw; 208. Worm gear; 209. Worm wheel; 210. Forward and reverse motor; 211. First rotating gear; 212. The... 213. Rotating gear; 214. Sprocket; 215. Chain; 216. Retracting rod; 217. First telescopic spring; 218. Limiting sleeve; 3. Limiting assembly; 301. Fixing block; 302. Mounting frame; 303. Insert block; 304. Telescopic rod; 305. Second telescopic spring; 306. Push plate; 307. Rubber sleeve; 308. Fixing tube; 309. Protrusion; 310. Third telescopic spring; 311. Groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 The present invention provides a technical solution: a PCB board mounting conveyor, comprising a support frame 1, a gear roller 101 symmetrically rotatably connected inside the support frame 1, a toothed conveyor belt 102 meshing between the outer sides of the gear roller 101, a rubber pad 103 provided on the outer side of the toothed conveyor belt 102, and a servo motor 104 installed at one end of the gear roller 101; an adjustment mechanism 2 is provided at the bottom end of the support frame 1, and limit components 3 are provided on the outer side of each rubber pad 103;

[0026] The adjustment mechanism 2 includes a base plate 201 disposed at the bottom of the support frame 1, with two sets of support columns 202 symmetrically installed at the top of the base plate 201. A fixing box 203 is installed inside the bottom of each support column 202, and a support box 204 is installed at the top of the base plate 201. A transmission rod 205 is rotatably connected between the support box 204, the support columns 202, and the fixing box 203. A lifting rod 206 is slidably connected inside the top of each support column 202, and a screw 20 is rotatably connected between the support column 202 and the fixing box 203. 7. The top of the screw 207 is internally threaded to the lifting rod 206, and a worm gear 208 is rotatably connected between the support box 204 and the base plate 201. A worm wheel 209 is installed on the outer center of the transmission rod 205, and the worm gear 208 and the worm wheel 209 are meshed together. A forward and reverse motor 210 is installed at the top of the worm gear 208, and first rotating teeth 211 are symmetrically installed at both ends of the transmission rod 205. A second rotating tooth 212 is installed at the bottom end of the screw 207. The first rotating tooth 211 and the second rotating tooth 212 are connected... The four lifting rods 206 are symmetrically mounted on the outer side of the transmission rod 205, and a chain 214 is meshed between the outer sides of the sprockets 213. This allows the four lifting rods 206 to move up and down synchronously, thereby achieving rapid adjustment of the height of the support frame 1. This facilitates the adjustment and adaptation by the operator according to the height of the patch device, greatly improving the flexibility of the device during use, saving time and effort, and providing convenience for the operator. A retractable rod 215 is symmetrically mounted between the support frame 1 and the base plate 201. A first telescopic spring 216 is sleeved on the outer side of the support frame 1. When the distance between the support frame 1 and the base plate 201 changes, the retractable rod 215 and the first telescopic spring 216 extend or return to their original position. The first telescopic spring 216 then buffers the moving support frame 1, improving the stability of the support frame 1 during use. The outer side of the transmission rod 205 is engaged with a limit sleeve 217, and the bottom end of the limit sleeve 217 is fixedly connected to the base plate 201. Through the design of the limit sleeve 217, the rotation of the transmission rod 205 can be made more stable.

[0027] The limiting component 3 includes a fixing block 301, which is installed on the outside of the rubber pad 103. A mounting frame 302 is provided at the top of each fixing block 301, and insert blocks 303 are symmetrically installed at the bottom of the mounting frame 302. The insert blocks 303 are inserted into the inside of the top of the fixing block 301. Telescopic rods 304 are symmetrically installed on the inner side of the mounting frame 302, and a second telescopic spring 305 is sleeved on the outer side of each telescopic rod 304. A push plate 306 is installed at one end of the telescopic rod 304, and a rubber sleeve 307 is installed on the inner side of the top of the push plate 306. This allows for rapid limiting and stable conveying of the PCB board, and can meet the limiting and conveying needs of various PCB board specifications. Compared to existing technologies where PCB board misalignment may cause scratches, this provides convenience for operators. The fixing block 301 has symmetrically installed fixing tubes 308 on both sides, and a protrusion 309 is slidably connected to one end of the fixing tube 308. A third telescopic spring 310 is provided inside the fixing tube 308. The insert block 303 has symmetrically opened grooves 311 on both sides, and the protrusion 309 is inserted into the groove 311. When the operator inserts the insert block 303 into the fixing block 301, the insert block 303 squeezes the protrusion 309, and the protrusion 309 retracts into the fixing tube 308. At this time, the third telescopic spring 310 retracts. When the insert block 303 is fully inserted into the fixing block 301, the third telescopic spring 310 quickly extends and resets, so that the protrusion 309 is inserted into the groove 311. This makes the installation of the mounting frame 302 more stable and prevents the PCB board from falling off.

[0028] Working principle: Before using this PCB board placement transport device, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 5As shown, when the operator starts the forward and reverse motor 210, it drives the worm gear 208 to rotate. The rotation of the worm gear 208 drives the worm wheel 209 to rotate, which in turn drives the transmission rod 205 to rotate. The rotation of the transmission rod 205 drives the sprocket 213 to rotate. Through the cooperation between the sprocket 213 and the chain 214, the two sets of transmission rods 205 rotate synchronously. The rotation of the transmission rod 205 drives the rotation of the two sets of first rotating teeth 211. The rotation of the first rotating teeth 211 drives the rotation of the second rotating teeth 212. The rotation of the second rotating teeth 212 drives the screw 207 to rotate. The rotation of the screw 207 drives the lifting rod 206 to move within the support column 202. The sliding mechanism allows the four lifting rods 206 to move up and down synchronously, enabling rapid adjustment of the support frame 1's height. This facilitates adjustments based on the height of the patch assembly equipment, significantly improving the device's flexibility, saving time and effort, and providing convenience for users. When the distance between the support frame 1 and the base plate 201 changes, the retractable rod 215 and the first telescopic spring 216 extend or return to their original positions. The first telescopic spring 216 then buffers the moving support frame 1, improving its stability during use. The design of the limiting sleeve 217 further stabilizes the rotation of the transmission rod 205.

[0029] The operator inserts the insert block 303 into the fixing block 301, then presses the two sets of push plates 306 to slide inside the mounting frame 302. At this time, the two sets of telescopic rods 304 and the second telescopic spring 305 retract. The operator then places the PCB board between the tops of the push plates 306. The operator then releases the push plates 306, and the retraction of the second telescopic spring 305 causes the two sets of push plates 306 to move closer together. At this time, the rubber sleeve 307 squeezes and limits the two ends of the PCB board. The operator then operates the controller to make the servo motor 104 run intermittently, which causes the gear roller 101 to drive the toothed conveyor belt 102 to rotate and run intermittently, thereby achieving rapid limiting and positioning of the PCB board. The system provides stable conveying and can meet the limited conveying requirements of various PCB board specifications. Compared with existing technologies where PCB boards may be scratched when they shift, this system offers greater convenience for operators. When the operator inserts the insert block 303 into the fixing block 301, the insert block 303 presses against the protrusion block 309, causing the protrusion block 309 to retract into the fixing tube 308. At this time, the third telescopic spring 310 retracts. When the insert block 303 is fully inserted into the fixing block 301, the third telescopic spring 310 quickly extends and resets, allowing the protrusion block 309 to engage with the groove 311. This makes the mounting frame 302 more stable and prevents the PCB board from falling off.

[0030] The prior art, including the support frame 1, gear roller 101, toothed conveyor belt 102, and rubber pad 103, discloses a PCB board chip feeding machine. The device used in the machine will not be described in detail here.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A conveying device for PCB board mounting, comprising a support frame (1), wherein a gear roller (101) is symmetrically rotatably connected inside the support frame (1), and a toothed conveyor belt (102) is meshed between the outer sides of the gear roller (101), and a rubber pad (103) is provided on the outer side of the toothed conveyor belt (102), and a servo motor (104) is installed at one end of the gear roller (101). Its features are, Also includes: The bottom end of the support frame (1) is provided with an adjustment mechanism (2), and the outer side of the rubber pad (103) is provided with a limit component (3). The adjustment mechanism (2) includes a base plate (201) disposed at the bottom of the support frame (1), and two sets of support columns (202) are symmetrically installed at the top of the base plate (201). A fixed box (203) is installed inside the bottom of the support column (202), and a support box (204) is installed at the top of the base plate (201). A transmission rod (205) is rotatably connected between the support box (204), the support column (202) and the fixed box (203). A lifting rod (206) is slidably connected inside the top of the support column (202), and a screw (207) is rotatably connected between the support column (202) and the fixed box (203). The top of the screw (207) is connected to the internal thread of the lifting rod (206), and the support box (204) and the base plate (201) are rotatably connected by a worm gear (208). A worm wheel (209) is installed on the outer side of the center of the transmission rod (205), and a forward and reverse motor (210) is installed on the top of the worm gear (208). First rotating teeth (211) are symmetrically installed at both ends of the transmission rod (205), and a second rotating tooth (212) is installed at the bottom end of the screw (207). A sprocket (213) is symmetrically installed on the outer side of the transmission rod (205), and a chain (214) is meshed between the outer sides of the sprockets (213).

2. The PCB board mounting transmission device according to claim 1, characterized in that: A retractable rod (215) is symmetrically installed between the support frame (1) and the base plate (201), and a first telescopic spring (216) is sleeved on the outside of the retractable rod (215).

3. The PCB board mounting transmission device according to claim 1, characterized in that: The limiting component (3) includes a fixing block (301), and the fixing blocks (301) are all installed on the outside of the rubber pad (103). The top of the fixing block (301) is provided with a mounting frame (302), and the bottom of the mounting frame (302) is symmetrically provided with an insert block (303). The insert block (303) is inserted into the inside of the top of the fixing block (301). The inner side of the mounting frame (302) is symmetrically provided with a telescopic rod (304), and the outer side of the telescopic rod (304) is sleeved with a second telescopic spring (305). One end of the telescopic rod (304) is provided with a push plate (306), and the inner side of the top of the push plate (306) is provided with a rubber sleeve (307).

4. The PCB board mounting transmission device according to claim 3, characterized in that: The fixing block (301) has fixing tubes (308) symmetrically installed on both sides inside, and a protrusion (309) is slidably connected to one end of the fixing tube (308). A third telescopic spring (310) is provided inside the fixing tube (308). The insert block (303) has grooves (311) symmetrically opened on both sides, and the protrusion (309) is inserted into the groove (311).

5. The PCB board mounting transmission device according to claim 1, characterized in that: The outer side of the transmission rod (205) is engaged with a limiting sleeve (217), and the bottom end of the limiting sleeve (217) is fixedly connected to the base plate (201).

6. The PCB board mounting transmission device according to claim 1, characterized in that: The worm (208) is meshed with the worm wheel (209).

7. The PCB board mounting transmission device according to claim 1, characterized in that: The first rotating tooth (211) and the second rotating tooth (212) are meshed together.

Images