Dispensing device for SMT (Surface Mount Technology)

Abstract

The invention relates to the technical field of electronic manufacturing, in particular to an SMT (surface mount technology) dispensing device which comprises a table body, a conveying table and a frame body are mounted on the end face of the table body, a tray is mounted on the surface of the conveying table, and the SMT dispensing device further comprises a dispensing mechanism used for dripping glue on a circuit board so as to mount an electronic component on the circuit board, the dispensing mechanism is mounted on the surface of the frame body; and the cutting-off and cleaning mechanism is used for cutting off the glue when the glue wire drawing phenomenon occurs after the glue is dripped on the circuit board by the glue dispensing mechanism. By arranging the electric push rod, the cut-off plate and the groove, by means of a driving system of the electric push rod and through accurate movement of the cut-off plate, glue drawn wires generated after glue dripping can be effectively cut off. The design of the cut-off plate comprises the grooves, and the cut-off glue can be effectively gathered together by using the grooves, so that the residual and condensation problems of the glue on the surface of the cut-off plate can be obviously reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of electronic manufacturing, and in particular relates to a glue dispensing device for SMT patches. Background Art

[0002] SMT patch dispensing is a technology that uses dispensing equipment to apply glue (red glue) on PCB boards or electronic components. The principle is to accurately apply glue to the target position through a dispensing head using compressed air or other driving methods. In the SMT process, the purpose of dispensing is to fix electronic components to prevent them from falling off during subsequent transportation, vibration or temperature changes, thereby improving the reliability and durability of electronic products.

[0003] In the Chinese patent with the publication number CN220738300U, a glue dispensing device for SMT patches is mentioned. The specification discloses that, by providing an anti-drawing mechanism, the third electric push rod inside the fixed cylinder is controlled to work, and the second electric push rod is driven to move downward to the desired position under the action of the third electric push rod. At this time, the user operates the control button again, so that the control button controls the second electric push rod to work, and the cutting knife is driven to move under the action of the second electric push rod, so that the cutting knife moves between the glue dispensing needle tube and the glue on the surface of the workpiece, and the glue that is wired is cut off under the action of the cutting knife, so that the function of preventing wire drawing of the glue dispensing device is realized, thereby avoiding the phenomenon that the glue after dispensing is wired and attached to the surface of the workpiece during the use of the glue dispensing device, and at the same time, avoiding affecting the aesthetics of the workpiece surface;

[0004] However, in the above application, the electric push rod is used to push the blade to cut the drawn glue. Although this method effectively separates the glue, some of the drawn glue may remain at the nozzle. If the residual glue is not cleaned in time, it is easy to solidify at the nozzle. The solidified glue will not only cause the nozzle to be blocked, but also have a negative impact on the subsequent glue dispensing process. Such blockage may cause uneven or interrupted glue dispensing. Summary of the invention

[0005] The object of the present invention is to provide a glue dispensing device for SMT patches, so as to solve the problem in the prior art that the existing glue dispensing device is prone to wire drawing during glue dispensing and is difficult to clean the nozzle of the glue hose.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A dispensing device for SMT patch, comprising a platform, a conveying platform and a frame body are installed on the end surface of the platform, a material tray is installed on the surface of the conveying platform, and further comprising:

[0008] A glue dispensing mechanism, which is used to drip glue on the circuit board so as to facilitate the installation of electronic components on the circuit board, and the glue dispensing mechanism is installed on the surface of the frame;

[0009] The cutting and cleaning mechanism is used to cut off the glue in time when the glue appears to be wire drawing after the glue dispensing mechanism drips glue onto the circuit board, and when the glue is not dispensed, the cleaning component is transformed into a cleaning component to clean the glue nozzle after the angle is changed. The cutting and cleaning mechanism includes a first round tube rotatably connected to the glue dispensing mechanism, the circular arc surface of the first round tube is fixedly connected to a cylinder and an electric push rod, the inner wall of the cylinder is slidably connected to a sliding rod, the end of the sliding rod away from the cylinder is fixedly connected to a fixing plate, the surface of the fixing plate is rotatably connected to a rotating rod, one end of the rotating rod is fixedly connected to a cutting plate, the end of the fixing plate away from the sliding rod is fixedly connected to a connecting rod, and the end of the connecting rod away from the fixing plate is fixedly connected to the output end of the electric push rod;

[0010] The auxiliary mechanism is used to remove the odor generated by the glue on the circuit board after the glue dispensing mechanism drops glue on the circuit board. The auxiliary mechanism includes a suction cylinder, a fan and a fixed pipe. The suction cylinder is located above the conveying platform, the fan is installed on the end face of the platform, the arc surface of the suction cylinder is provided with a suction port, and the fixed pipe is fixedly installed on the end face of the platform.

[0011] Preferably, the cross-section of the cutting plate is trapezoidal, and a groove is formed on the end surface of the cutting plate.

[0012] Preferably: the arc surface of the first circular tube is fixedly connected to a first gear, the first gear is a gear ring, the tooth surface of the first gear is meshed with a second gear, the surface of the dispensing mechanism is fixedly connected to a motor, the second gear is fixedly connected to the output end of the motor, and a plurality of bristles are provided on the bottom surface of the cutting plate.

[0013] Preferably: a fixing block is fixedly connected to the side of the fixing plate away from the cylinder, an insertion rod is slidably inserted into the end surface of the fixing block, a plurality of insertion holes matching with the insertion rod are opened on the arc surface of the rotating rod, and the plurality of insertion holes are evenly distributed on the arc surface of the rotating rod.

[0014] Preferably: the auxiliary mechanism includes a support plate fixedly connected to the end surface of the platform, the suction cylinder is fixedly connected to one end of the support plate, the two air outlets of the fan are connected to a duct, the ends of the two ducts away from each other are respectively connected to the suction cylinder and a fixed pipe, an adsorption frame is provided at one end of the fixed pipe, an activated carbon block is provided inside the adsorption frame, and a filter is installed at the end of the adsorption frame away from the fixed pipe.

[0015] Preferably: one end of the adsorption frame close to the fixed tube is fixedly connected with a plurality of clamping rods, one end of the fixed tube close to the adsorption frame is fixedly connected with a first ring, and one side of the first ring close to the adsorption frame is provided with a plurality of clamping holes, and the size of the clamping holes is adapted to the size of the clamping rods.

[0016] Preferably, a sealing gasket is fixedly connected to one side of the first ring close to the adsorption frame, and the sealing gasket is a silicone gasket.

[0017] Preferably: the end surface of the platform is fixedly connected to a fixing rod, the arc surface of the fixing rod is slidably connected to a sliding tube, a second circular tube is provided above the sliding tube, the arc surface of the fixing rod is sleeved with a spring, both ends of the spring are respectively fixedly connected to the sliding tube and the fixing rod, the arc surface of the second circular tube is connected to an air outlet duct, and the arc surface of the adsorption frame is fixedly connected to a second circular ring.

[0018] Preferably: the arc surface of the sliding tube is fixedly connected with a support rod, the top end of the support rod is rotatably connected with a third ring, the second circular tube is rotatably connected inside the third ring, and a plurality of bristles are provided at one end of the second circular tube away from the adsorption frame.

[0019] Preferably, the cross-sections of the fixing tube and the fixing rod are both L-shaped.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention is provided with an electric push rod, a cutting plate and a groove. With the help of the driving system of the electric push rod and the precise movement of the cutting plate, we can effectively cut off the glue wire produced after the glue is dripped. The design of the cutting plate includes grooves, and the use of these grooves can effectively gather the glue after cutting, which can significantly reduce the glue residue and condensation problems on the surface of the cutting plate.

[0022] 2. The present invention can effectively adjust the working angle of the cutting plate by setting the first gear and the second gear and changing the rotation angle of the cutting plate. In this process, the precise transmission system of the first gear and the second gear enables the cutting plate to rotate around the hose nozzle. This rotation action ensures that the bristles can fully contact the surface of the hose nozzle, effectively removing the residual glue at the nozzle and reducing the risk of nozzle clogging due to the glue solidifying outside the nozzle without being cleaned.

[0023] 3. The present invention is provided with a suction cylinder, a fan, and an adsorption frame. The use of the fan can efficiently absorb the odor generated during the dispensing process through the suction cylinder. The design of the suction cylinder ensures smooth air flow, so that the odor can be quickly guided into the adsorption frame. In the adsorption frame, the activated carbon block exerts its powerful adsorption capacity, and the porous structure of the activated carbon can effectively capture and adsorb odor molecules, thereby further reducing the content of harmful gases in the air.

[0024] 4. The present invention provides a spring and a second circular tube, and by utilizing the elastic force of the spring, a stable pressure can be applied to the second circular tube, thereby stabilizing the adsorption frame. This design not only ensures the stability of the adsorption frame during use, but also facilitates quick replacement of the activated carbon block when it is needed. In addition, when the fan is not in use, the angle of the second circular tube can be changed by an adjustment device, and the filter on one side of the adsorption frame can be cleaned to increase the gas circulation rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 One of the three-dimensional diagrams of the present invention;

[0026] Figure 2 This is the second stereogram of the present invention;

[0027] Figure 3 For the present invention Figure 1 A rear view structural diagram of ;

[0028] Figure 4 For the present invention Figure 1 A right view structural diagram of ;

[0029] Figure 5 It is a structural schematic diagram of the cutting and cleaning mechanism of the present invention;

[0030] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at A in the middle;

[0031] Figure 7 It is a schematic diagram of the partially disassembled structure of the auxiliary mechanism of the present invention;

[0032] Figure 8 For the present invention Figure 7 A schematic diagram of the structure from another perspective.

[0033] In the figure: 1, platform; 101, frame; 102, dispensing mechanism; 103, conveying platform; 104, material tray; 2, cutting and cleaning mechanism; 201, first round tube; 202, cylinder; 203, slide bar; 204, fixing plate; 205, rotating rod; 206, cutting plate; 207, groove; 208, connecting rod; 209, electric push rod; 210, first gear; 211, second gear; 212, motor; 213, fixing block; 214, plug rod; 21 5. Socket; 3. Auxiliary mechanism; 301. Support plate; 302. Air suction tube; 303. Fan; 304. Conduit; 305. Fixed tube; 306. First circular ring; 307. Clamp hole; 308. Adsorption frame; 309. Clamp rod; 310. Filter; 311. Second circular ring; 312. Fixed rod; 313. Sliding tube; 314. Support rod; 315. Third circular ring; 316. Second circular tube; 317. Spring; 318. Air outlet pipe; 319. Sealing pad. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Reference Figure 1-Figure 8 As shown, the present invention provides a glue dispensing device for SMT patch, including a platform 1, a conveying platform 103 and a frame 101 are installed on the end surface of the platform 1, a material tray 104 is installed on the surface of the conveying platform 103, and also includes: a glue dispensing mechanism 102, which is used to drip glue on the circuit board so as to facilitate the installation of electronic components on the circuit board, and the glue dispensing mechanism 102 is installed on the surface of the frame 101;

[0036] In this embodiment, the conveying platform 103 and the glue dispensing mechanism 102 are both existing equipment. The glue dispensing mechanism 102 can adjust its position on the frame 101 left and right, front and back. The conveying platform 103 can transport the material tray 104. The glue dispensing mechanism 102 includes a glue storage device, a glue supply device, etc.

[0037] In a further embodiment, referring to Figure 1 , Figure 5 and Figure 6As shown, the cutting and cleaning mechanism 2 is used to cut off the glue in time when the glue appears to be wire-drawing after the glue dispensing mechanism 102 drips glue onto the circuit board, and when the glue is not dispensed, the cleaning component is transformed into a cleaning component to clean the glue tube nozzle through the change of angle. The cutting and cleaning mechanism 2 includes a first round tube 201 rotatably connected to the glue dispensing mechanism 102, the arc surface of the first round tube 201 is fixedly connected to the cylinder 202 and the electric push rod 209, and the inner wall of the cylinder 202 is slidably connected to the slide rod 20 3. One end of the slide bar 203 away from the cylinder 202 is fixedly connected to a fixed plate 204, a rotating rod 205 is rotatably connected to the surface of the fixed plate 204, one end of the rotating rod 205 is fixedly connected to a cutting plate 206, one end of the fixed plate 204 away from the slide bar 203 is fixedly connected to a connecting rod 208, one end of the connecting rod 208 away from the fixed plate 204 is fixedly connected to the output end of the electric push rod 209, the cross-sectional shape of the cutting plate 206 is trapezoidal, and a groove 207 is provided on the end surface of the cutting plate 206.

[0038] In this embodiment, the rubber hose in the glue dispensing mechanism 102 is located at the center of the first circular tube 201, that is, when the first circular tube 201 rotates, it rotates with the rubber hose as the center. The use of the groove 207 can effectively gather the glue after cutting, which can significantly reduce the glue residue and condensation problems on the surface of the cutting plate 206, and is more conducive to the later cleaning of the glue.

[0039] The arc surface of the first circular tube 201 is fixedly connected with the first gear 210, the first gear 210 is a gear ring, the tooth surface of the first gear 210 is meshed with the second gear 211, the surface of the dispensing mechanism 102 is fixedly connected with the motor 212, the second gear 211 is fixedly connected to the output end of the motor 212, and the bottom surface of the cutting plate 206 is provided with a plurality of bristles.

[0040] In this embodiment, the cutting plate 206 can clean the nozzle of the hose through the bristles after rotation, and remove the glue remaining at the nozzle of the hose.

[0041] A fixed block 213 is fixedly connected to the side of the fixed plate 204 away from the cylinder 202, and an insertion rod 214 is slidably inserted into the end surface of the fixed block 213. The arc surface of the rotating rod 205 is provided with a plurality of sockets 215 that cooperate with the insertion rod 214, and the plurality of sockets 215 are evenly distributed on the arc surface of the rotating rod 205.

[0042] In this embodiment, the combination of the insertion rod 214 and the insertion hole 215 plays a role in stabilizing the angle of the cutting plate 206.

[0043] In a further embodiment, referring to Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, the auxiliary mechanism 3 is used to remove the odor generated by the glue on the circuit board after the dispensing mechanism 102 drops glue on the circuit board. The auxiliary mechanism 3 includes a suction cylinder 302, a fan 303 and a fixed tube 305. The suction cylinder 302 is located above the conveying platform 103, the fan 303 is installed on the end face of the platform body 1, the arc surface of the suction cylinder 302 is provided with a suction port, and the fixed tube 305 is fixedly installed on the end face of the platform body 1.

[0044] The auxiliary mechanism 3 includes a support plate 301 fixedly connected to the end surface of the platform 1, an air suction cylinder 302 fixedly connected to one end of the support plate 301, and two air outlets of the fan 303 are connected to the duct 304, that is, the air inlet and the air outlet of the fan 303 are connected to the duct 304, and the ends of the two ducts 304 away from each other are respectively connected to the air suction cylinder 302 and the fixed pipe 305, and one end of the fixed pipe 305 is provided with an adsorption frame 308, and an activated carbon block is provided inside the adsorption frame 308, and a filter screen 310 is installed at the end of the adsorption frame 308 away from the fixed pipe 305.

[0045] In this embodiment, the filter 310 serves to block dust in the air sucked into the suction tube 302 .

[0046] One end of the adsorption frame 308 close to the fixed tube 305 is fixedly connected to a plurality of clamping rods 309 , and one end of the fixed tube 305 close to the adsorption frame 308 is fixedly connected to a first ring 306 . A side of the first ring 306 close to the adsorption frame 308 is provided with a plurality of clamping holes 307 , and the size of the clamping holes 307 is adapted to the size of the clamping rods 309 .

[0047] In this embodiment, the combination of the clamping rod 309 and the clamping hole 307 plays a role in installing the adsorption frame 308, so as to facilitate the rapid disassembly of the adsorption frame 308 and enable faster replacement of the activated carbon block.

[0048] A sealing pad 319 is fixedly connected to one side of the first ring 306 close to the adsorption frame 308 , and the sealing pad 319 is a silicone pad.

[0049] In this embodiment, the sealing gasket 319 serves to improve the airtightness between the adsorption frame 308 and the fixing tube 305 .

[0050] The end surface of the platform 1 is fixedly connected to a fixing rod 312, the cross-sectional shapes of the fixing tube 305 and the fixing rod 312 are both L-shaped, the arc surface of the fixing rod 312 is slidably connected to a sliding tube 313, a second circular tube 316 is provided above the sliding tube 313, the arc surface of the fixing rod 312 is sleeved with a spring 317, both ends of the spring 317 are fixedly connected to the sliding tube 313 and the fixing rod 312 respectively, the arc surface of the second circular tube 316 is connected to an air outlet pipe 318, and the arc surface of the adsorption frame 308 is fixedly connected to a second ring 311.

[0051] In this embodiment, one end of the second circular tube 316 is open and the other end is sealed. The spring 317 stabilizes the adsorption frame 308. The inner diameter of the second circular tube 316 is matched with the outer wall size of the adsorption frame 308. In this way, when the adsorption frame 308 is installed, the section of the adsorption frame 308 close to the filter 310 will be in the second circular tube 316 to improve the stability of the adsorption frame 308.

[0052] The arc surface of the sliding tube 313 is fixedly connected to the support rod 314, the top of the support rod 314 is rotatably connected to the third ring 315, the second tube 316 is rotatably connected inside the third ring 315, and a plurality of bristles are provided at one end of the second tube 316 away from the adsorption frame 308.

[0053] In this embodiment, the third circular ring 315 is rotated to change the angle of the second circular tube 316, and the filter screen 310 is cleaned with the help of bristles.

[0054] The working principle of the present invention is as follows: when in use, the staff puts the circuit board on the material tray 104, and transports the material tray 104 to a suitable position below the dispensing mechanism 102 through the conveying platform 103, and drips glue from the glue hose of the dispensing mechanism 102. After the glue is dripped, the glue hose is lifted upward, and the electric push rod 209 is started. The output shaft of the electric push rod 209 shrinks and drives the cutting plate 206 to move. If the glue is wire-drawn, it will be cut off by the cutting plate 206. After cutting, the upper part of the cutting plate 206 The glue part will enter the groove 207, and some glue will remain at the nozzle of the rubber hose. The glued circuit board will be transported backward by the conveying platform 103 to the bottom of the suction cylinder 302. The fan 303 is started, and the suction cylinder 302 will absorb the odor emitted by the glue and transport it to the adsorption frame 308 through the guide tube 304 and the fixed tube 305. The activated carbon block in the adsorption frame 308 will process the odor, and the cleaned airflow will pass through the filter 310 into the second circular tube 316 and be discharged from the air outlet pipe 318;

[0055] After the glue dispensing is completed, the rotating rod 205 is rotated. After rotating 180 degrees, the plug rod 214 is pressed to insert the plug rod 214 into the socket 215 to fix the angle of the cutting plate 206. The electric push rod 209 is driven to drive the cutting plate 206 to move below the nozzle of the hose. At this time, the side of the cutting plate 206 with the bristles will contact the nozzle of the hose. At this time, the motor 212 is started to drive the second gear 211 to rotate. The second gear 211 drives the first gear 210 to rotate the round tube. Then the cutting plate 206 will rotate and contact the nozzle of the hose through the bristles to clean up the residual glue at the nozzle of the hose. The suction tube 302 will absorb the dust in the air while absorbing the odor of the glue. At this time, the filter screen 310 on the adsorption frame 308 will have dust after a long time of accumulation. At this time, the support rod is pulled 314, the sliding tube 313 moves, the spring 317 is compressed, and the second circular tube 316 is separated from the adsorption frame 308. With the help of the rotation of the support rod 314 and the third ring 315, the position of the second circular tube 316 is adjusted so that the side of the second circular tube 316 with the bristles faces the filter 310, and with the help of the rebound of the spring 317, the two are brought into contact. At this time, the air outlet pipe 318 is held and the second circular tube 316 is rotated. The bristles on the second circular tube 316 will continuously contact the filter 310, thereby playing a role in cleaning the filter 310. When the activated carbon block in the adsorption frame 308 needs to be replaced, the second circular tube 316 is separated from the adsorption frame 308 by sliding the sliding tube 313. With the help of the sliding of the clamping rod 309 and the clamping hole 307, the adsorption frame 308 is removed from the fixed tube 305, and the activated carbon block in the adsorption frame 308 can be replaced.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A glue dispensing device for SMT patch, comprising a platform (1), the end surface of the platform (1) is equipped with a conveying platform (103) and a frame (101), the surface of the conveying platform (103) is equipped with a material tray (104), characterized in that: Also includes: A glue dispensing mechanism (102) is used to drip glue on the circuit board so as to facilitate mounting of electronic components on the circuit board, and the glue dispensing mechanism (102) is mounted on the surface of the frame (101); The cutting and cleaning mechanism (2) is used to timely cut off the glue when the glue appears to be wire-drawing after the glue dispensing mechanism (102) drips glue onto the circuit board, and when the glue is not dispensed, the cutting and cleaning mechanism (2) is transformed into a cleaning component to clean the glue tube nozzle through a change of angle, the cutting and cleaning mechanism (2) comprising a first circular tube (201) rotatably connected to the glue dispensing mechanism (102), the circular arc surface of the first circular tube (201) being fixedly connected to a cylinder (202) and an electric push rod (209), the inner wall of the cylinder (202) being slidingly connected to the inner wall of the cylinder (202) The cylinder (202) is rotatably connected to a slide rod (203), one end of the slide rod (203) away from the cylinder (202) is fixedly connected to a fixed plate (204), the surface of the fixed plate (204) is rotatably connected to a rotating rod (205), one end of the rotating rod (205) is fixedly connected to a cutting plate (206), one end of the fixed plate (204) away from the slide rod (203) is fixedly connected to a connecting rod (208), and one end of the connecting rod (208) away from the fixed plate (204) is fixedly connected to the output end of the electric push rod (209); The auxiliary mechanism (3) is used to remove the odor generated by the glue on the circuit board after the glue dispensing mechanism (102) drips the glue on the circuit board. The auxiliary mechanism (3) comprises a suction cylinder (302), a fan (303) and a fixed pipe (305). The suction cylinder (302) is located above the conveying platform (103), the fan (303) is installed on the end face of the platform (1), the arc surface of the suction cylinder (302) is provided with a suction port, and the fixed pipe (305) is fixedly installed on the end face of the platform (1).

2. The SMT patch dispensing device according to claim 1, characterized in that: The cross-section of the cutting plate (206) is trapezoidal, and a groove (207) is formed on the end surface of the cutting plate (206).

3. The SMT patch dispensing device according to claim 1, characterized in that: The arc surface of the first circular tube (201) is fixedly connected to a first gear (210), the first gear (210) is a gear ring, the tooth surface of the first gear (210) is meshed with a second gear (211), the surface of the dispensing mechanism (102) is fixedly connected to a motor (212), the second gear (211) is fixedly connected to the output end of the motor (212), and a plurality of bristles are provided on the bottom surface of the cutting plate (206).

4. The SMT dispensing device according to claim 1, characterized in that: A fixing block (213) is fixedly connected to one side of the fixing plate (204) away from the cylinder (202); an insertion rod (214) is slidably inserted into the end surface of the fixing block (213); a plurality of insertion holes (215) matching with the insertion rod (214) are formed on the arc surface of the rotating rod (205); and the plurality of insertion holes (215) are evenly distributed on the arc surface of the rotating rod (205).

5. The SMT patch dispensing device according to claim 1, characterized in that: The auxiliary mechanism (3) comprises a support plate (301) fixedly connected to the end surface of the platform (1); the suction tube (302) is fixedly connected to one end of the support plate (301); two air outlets of the fan (303) are both connected to a duct (304); the ends of the two ducts (304) that are away from each other are respectively connected to the suction tube (302) and a fixed tube (305); an adsorption frame (308) is provided at one end of the fixed tube (305); an activated carbon block is provided inside the adsorption frame (308); and a filter screen (310) is installed at the end of the adsorption frame (308) that is away from the fixed tube (305).

6. The SMT dispensing device according to claim 5, characterized in that: One end of the adsorption frame (308) close to the fixed tube (305) is fixedly connected to a plurality of clamping rods (309), and one end of the fixed tube (305) close to the adsorption frame (308) is fixedly connected to a first circular ring (306). A plurality of clamping holes (307) are provided on one side of the first circular ring (306) close to the adsorption frame (308), and the size of the clamping holes (307) is adapted to the size of the clamping rods (309).

7. The SMT dispensing device according to claim 6, characterized in that: A sealing pad (319) is fixedly connected to one side of the first circular ring (306) close to the adsorption frame (308), and the sealing pad (319) is a silicone pad.

8. The SMT patch dispensing device according to claim 5, characterized in that: The end surface of the platform (1) is fixedly connected to a fixing rod (312), the arc surface of the fixing rod (312) is slidably connected to a sliding tube (313), a second circular tube (316) is provided above the sliding tube (313), the arc surface of the fixing rod (312) is sleeved with a spring (317), the two ends of the spring (317) are respectively fixedly connected to the sliding tube (313) and the fixing rod (312), the arc surface of the second circular tube (316) is connected to an air outlet pipe (318), and the arc surface of the adsorption frame (308) is fixedly connected to a second circular ring (311).

9. The SMT patch dispensing device according to claim 8, characterized in that: The arc surface of the sliding tube (313) is fixedly connected to a support rod (314), the top end of the support rod (314) is rotatably connected to a third circular ring (315), the second circular tube (316) is rotatably connected to the inside of the third circular ring (315), and a plurality of bristles are provided at one end of the second circular tube (316) away from the adsorption frame (308).

10. The SMT patch dispensing device according to claim 1, characterized in that: The cross-sectional shapes of the fixing tube (305) and the fixing rod (312) are both L-shaped.

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