Precise quantitative sub-packaging device for solder paste

Abstract

The utility model relates to the field of solder paste production, in particular to a precise and quantitative solder paste subpackaging device, which comprises a storage barrel, a three-way pipeline and a component component, a motor I is started to drive a driving dial to rotate to drive a cylindrical pin to rotate, so that the cylindrical pin is inserted into a groove of a grooved wheel to drive the grooved wheel to rotate by a certain angle; a cylindrical pin rotates to drive a grooved wheel to rotate intermittently, so that a three-way pipeline rotates intermittently, the flow and the flow direction of solder paste are controlled by controlling the rotating angle and time of the three-way pipeline, and the purpose of precise quantitative subpackaging is achieved; a second motor is started to drive a second gear to rotate, so that a first gear rotates, and the first gear rotates to drive a first threaded rod to rotate; the rotating plate rotates in the groove, the rotating plate rotates to drive the second threaded rod to rotate, the piston slides in the cylinder, and the position of the piston in the cylinder can be controlled, so that the size of the space in the cylinder is adjusted, solder paste is pushed or sucked, and the purpose of quantitatively controlling output of the solder paste is achieved.

Description

Technical Field

[0001] This utility model relates to the field of solder paste production, and in particular to a precision quantitative dispensing device for solder paste. Background Technology

[0002] Solder paste is a key material used in surface mount technology in the electronics manufacturing industry. It is mainly composed of solder powder, flux and some additives. In the process of circuit board assembly, it plays an important role in firmly soldering electronic components onto the printed circuit board. As the density of electronic components on the circuit board continues to increase, the precision requirements for solder paste dispensing are also becoming higher and higher. In order to achieve reliable soldering of these tiny components, a dispensing device that can accurately control the amount of solder paste is needed to ensure that each solder joint has the right amount of solder paste.

[0003] The precision quantitative dispensing device for solder paste mainly consists of a storage tank, a piston, a drive mechanism, and nozzles. The storage tank is used to store solder paste, and the piston can reciprocate inside the storage tank. The drive mechanism is used to push the piston to move. The drive mechanism drives the piston to move forward inside the storage tank. Due to the movement of the piston, the solder paste inside the storage tank is squeezed. Under pressure, the solder paste is squeezed out through the nozzle connected to the storage tank.

[0004] During the quantitative dispensing process of solder paste, the viscosity of the solder paste may change, which may affect the dispensing and cause errors, affecting the consistency of product quality, resulting in solder paste waste during production and reducing production efficiency. Utility Model Content

[0005] To overcome the technical problem that changes in solder paste viscosity can affect flow distribution and cause errors, thus impacting product quality consistency,

[0006] The technical solution of this utility model is as follows: a precision quantitative dispensing device for solder paste, including a storage tank, a three-way pipe, and a dispensing component. A connecting pipe is fixedly connected to the bottom of the storage tank. A dispensing component is provided below the connecting pipe. A square tube is threadedly connected to the bottom of the connecting pipe. A three-way pipe is provided inside the square tube. The connecting pipe passes through the square tube and communicates with the three-way pipe. A connecting plate is provided on one side of the square tube. A motor is provided on one side of the connecting plate. An active dial is rotatably connected to the output end of the motor. A cylindrical pin is rotatably connected to the top of the active dial. A grooved wheel is rotatably connected to the outside of the three-way pipe. A frame is rotatably connected to the outside of the active dial.

[0007] Preferably, the square tube is threaded with a second connecting pipe at the bottom, and the second connecting pipe passes through the square tube and is connected to the tee pipe.

[0008] Preferably, a sealing cover is fixedly connected to the lower part of the connecting pipe 2. The sealing cover 2 has an internal thread 2 inside. A discharge cylinder is provided below the sealing cover 2. An external thread 2 is provided on the outside of the discharge cylinder. The discharge cylinder is threadedly connected to the sealing cover 2. A nozzle is provided below the discharge cylinder.

[0009] Preferably, the storage hopper has an external thread on its outer side, a sealing cover on its top, and an internal thread on its inner side. The storage hopper and the sealing cover are threaded together.

[0010] Preferably, a support frame is fixedly connected to the outside of the storage hopper and the discharge hopper, and a second motor is installed above the support frame. The output end of the second motor is rotatably connected to a second gear.

[0011] Preferably, a through hole is provided on the top of the sealing cover, and a cylinder is provided inside the through hole. A gear is rotatably connected to the top of the cylinder. Gear 1 meshes with gear 2. A threaded rod is rotatably connected to the top of gear 1. A groove is provided on the top of threaded rod 1. A rotating plate is rotatably connected inside the groove. A threaded rod 2 is rotatably connected below the rotating plate. A piston is provided below threaded rod 2. The piston slides inside the cylinder.

[0012] Preferably, a base is fixedly connected to the bottom of the support frame, a groove is provided on the top of the base, an arc-shaped support plate is provided on the outside of the groove, multiple sets of springs are fixedly connected to one side of the arc-shaped support plate, and a rubber plate is fixedly connected to the other side of the springs.

[0013] The beneficial effects of this utility model are as follows: Through ingenious structural design, this utility model uses a starting motor to drive the rotation of an active dial, which in turn drives the rotation of a cylindrical pin. The cylindrical pin inserts into the groove of a slotted wheel, causing the slotted wheel to rotate at a certain angle. The rotation of the cylindrical pin causes the slotted wheel to rotate intermittently, resulting in the intermittent rotation of the three-way pipe. By controlling the angle and time of rotation, the flow rate and direction of solder paste can be controlled, achieving precise quantitative dispensing. A starting motor drives a second gear to rotate, which in turn drives a first gear. The rotation of the first gear drives a first threaded rod, causing a rotating plate to rotate inside the groove. The rotation of the rotating plate drives the second threaded rod, causing the piston to slide inside the cylinder. The position of the piston inside the cylinder can be controlled, thereby adjusting the size of the space inside the cylinder to push or suck up the solder paste, achieving quantitative control of solder paste output. Attached Figure Description

[0014] Figure 1 The diagram shown is a first three-dimensional structural schematic of this utility model;

[0015] Figure 2 The diagram shown is a partial three-dimensional structural schematic of the present invention.

[0016] Figure 3The diagram shown is a first partial cross-sectional perspective view of the present invention.

[0017] Figure 4 The diagram shown is a partial three-dimensional structural schematic of the present invention.

[0018] Figure 5 The diagram shown is a two-dimensional cross-sectional view of the second part of this utility model.

[0019] Figure 6 The diagram shown is a three-dimensional structural schematic of the third part of this utility model;

[0020] Explanation of reference numerals in the attached drawings: 101, storage bin; 102, connecting pipe one; 103, square tube; 104, tee pipe; 105, connecting plate; 106, motor one; 107, drive dial; 108, cylindrical pin; 109, grooved wheel; 110, frame; 111, connecting pipe two; 112, sealing cover two; 113, nozzle; 201, internal thread two; 202, discharge cylinder; 203, external thread two; 204, external thread one; 205, sealing cover one; 206, internal thread one; 207, support frame; 208, motor two; 209, gear two; 210, cylinder; 211, gear one; 301, threaded rod one; 302, rotating plate; 303, threaded rod two; 304, piston; 305, base; 306, arc-shaped support plate; 307, spring; 308, rubber plate. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-2This utility model provides an embodiment of a precision quantitative dispensing device for solder paste, including a storage tank 101, a three-way pipe 104, and a dispensing component. A connecting pipe 102 is fixedly connected to the lower part of the storage tank 101. A dispensing component is disposed below the connecting pipe 102. A square tube 103 is threadedly connected to the lower part of the connecting pipe 102. A three-way pipe 104 is disposed inside the square tube 103. The connecting pipe 102 passes through the square tube 103 and communicates with the three-way pipe 104. A connecting plate 105 is disposed on one side of the square tube 103. A motor 106 is disposed on one side of the connecting plate 105. An active dial 107 is rotatably connected to the output end of the motor 106. A cylindrical pin 108 is rotatably connected above the active dial 107. A grooved wheel 109 is rotatably connected to the outer side of the through pipe 104. The grooved wheel 109 is rotatably connected to the outer side of the active dial 107 via a frame 110. Solder paste from the storage tank 101 is transported to the component assembly via the connecting pipe 102. The active dial 107 is rotated by the starter motor 106. The rotation of the active dial 107 drives the rotation of the cylindrical pin 108. When the active dial 107 rotates, it inserts into the groove of the grooved wheel 109, causing the grooved wheel 109 to rotate at a certain angle. The rotation of the cylindrical pin 108 causes the grooved wheel 109 to rotate intermittently, thereby causing the three-way pipe 104 to rotate intermittently. By controlling the rotation angle and time, the flow rate and direction of the solder paste can be controlled to achieve precise quantitative dispensing.

[0023] Please see Figures 3-5In this embodiment, a connecting pipe 111 is threadedly connected to the lower part of the square tube 103, and the connecting pipe 111 passes through the square tube 103 and communicates with the tee pipe 104. A sealing cap 112 is fixedly connected to the lower part of the connecting pipe 111. The sealing cap 112 has an internal thread 201 inside. A discharge cylinder 202 is located below the sealing cap 112, and an external thread 203 is located on the outer side of the discharge cylinder 202. The discharge cylinder 202 is threadedly connected to the sealing cap 112. A nozzle 113 is located below the discharge cylinder 202. An external thread 204 is located on the outer side of the storage tank 101. A sealing cap 205 is located above the storage tank 101, and an internal thread 206 is located inside the sealing cap 205. The storage tank 101 is threadedly connected to the sealing cap 205, and the connection is made through the connecting pipe. The second 111 can transport the solder paste diverted from the three-way pipe 104 to the lower discharge cylinder 202. The internal thread 201 inside the sealing cover 212 mates with the external thread of the discharge cylinder 202 to fix the sealing cover 212 and the discharge cylinder 202 in place, preventing solder paste leakage. After the device is used, the discharge cylinder 202 can be easily disassembled for cleaning. The internal thread 206 of the sealing cover 205 mates with the external thread 204 on the outside of the storage tank 101 to tightly connect the storage tank 101 and the sealing cover 205, preventing solder paste leakage and external impurities from entering the storage tank 101, thus ensuring the quality of the solder paste. It can be opened when needed to easily add solder paste to the storage tank 101. After use, the storage tank 101 can be easily disassembled for cleaning.

[0024] Please see Figures 1-5In this embodiment, a support frame 207 is fixedly connected to the outer side of the storage hopper 101 and the discharge hopper 202. A second motor 208 is arranged above the support frame 207. A second gear 209 is rotatably connected to the output end of the second motor 208. A through hole is opened above the sealing cover 205. A cylinder 210 is arranged inside the through hole. A first gear 211 is rotatably connected above the cylinder 210. The first gear 211 meshes with the second gear 209. A screw is rotatably connected above the first gear 211. The threaded rod 301 has a groove on its upper part. A rotating plate 302 is rotatably connected inside the groove. A second threaded rod 303 is rotatably connected below the rotating plate 302. A piston 304 is located below the second threaded rod 303 and slides inside the cylinder 210. A second motor 208 drives a second gear 209 to rotate, which in turn drives a first gear 211 to rotate, which in turn drives the first threaded rod 301 to rotate. The rotation of threaded rod 301 drives rotating plate 302 to rotate inside the groove. The rotation of rotating plate 302 drives threaded rod 303 to rotate, which in turn drives piston 304 to slide inside cylinder 210. This allows control of the position of piston 304 inside cylinder 210, thereby adjusting the size of the space inside cylinder 210 and enabling the pushing or sucking of solder paste to achieve quantitative control of solder paste output. A base 305 is fixedly connected to the bottom of support frame 207. A groove is provided on the top of base 305. An arc-shaped support plate 306 is provided on the outside of the groove. Multiple sets of springs 307 are fixedly connected to one side of the arc-shaped support plate 306, and a rubber plate 308 is fixedly connected to the other side of the springs 307. When the operator places the bottle containing the solder paste into the groove above base 305, the bottle can be fixed in the groove by the action of the arc-shaped support plate 306, springs 307, and rubber plate 308. This method is suitable for bottles of different diameters within a certain range.

[0025] During operation, the motor 106 drives the active dial 107 to rotate, which in turn drives the cylindrical pin 108 to rotate. As the active dial 107 rotates, it inserts into the groove of the slotted wheel 109, causing the wheel to rotate at a certain angle. The rotation of the cylindrical pin 108 then causes the slotted wheel 109 to rotate intermittently, which in turn drives the tee pipe 104 to rotate intermittently. By controlling the angle and duration of this rotation, the flow rate and direction of the solder paste are controlled, achieving precise quantitative dispensing. This is achieved through the connecting tube... Channel 2 111 can transport the solder paste diverted from the three-way pipe 104 to the lower discharge cylinder 202. The internal thread 201 inside the sealing cap 2 112 mates with the external thread of the discharge cylinder 202, fixing the sealing cap 2 112 and the discharge cylinder 202 in a fixed connection to prevent solder paste leakage. After use, the discharge cylinder 202 can be easily disassembled and cleaned. The internal thread 206 of the sealing cap 205 mates with the external thread 204 on the outside of the storage tank 101, thereby allowing the storage tank 101 to discharge. 01 is tightly connected to the sealing cap 205 to prevent solder paste leakage and external impurities from entering the storage tank 101, ensuring the quality of the solder paste. It can be opened when needed to facilitate the addition of solder paste to the storage tank 101. After use, the storage tank 101 can be easily disassembled for cleaning. Starting the motor 208 drives the gear 209 to rotate, which in turn drives the gear 211 to rotate, which in turn drives the threaded rod 301 to rotate, which in turn drives the rotating plate 302 to rotate in the concave position. The rotation inside the groove drives the rotation of the rotating plate 302, which in turn drives the rotation of the threaded rod 303. The rotation of the threaded rod 303 drives the piston 304 to slide inside the cylinder 210, thus controlling the position of the piston 304 inside the cylinder 210 and adjusting the size of the space inside the cylinder 210. This allows for the pushing or sucking of solder paste, achieving quantitative control of solder paste output. Through the action of the arc-shaped support plate 306, the spring 307, and the rubber plate 308, the bottle can be fixed in the groove, making it suitable for bottles of different diameters within a certain range.

[0026] Through the above steps, the starting motor 106 drives the rotation of the active dial 107, which in turn drives the rotation of the cylindrical pin 108. When the active dial 107 rotates, it inserts into the groove of the slotted wheel 109, causing the slotted wheel 109 to rotate at a certain angle. The rotation of the cylindrical pin 108 causes the slotted wheel 109 to rotate intermittently, which in turn drives the three-way pipe 104 to rotate intermittently. By controlling the angle and time of its rotation, the flow rate and direction of solder paste can be controlled to achieve precise quantitative dispensing.

Claims

1. A tin paste precision metering and dispensing device, comprising a storage barrel (101), characterized in that: It also includes a three-way pipe (104) and a distributing component. A connecting pipe (102) is fixedly connected to the bottom of the storage tank (101). A distributing component is installed below the connecting pipe (102). A square tube (103) is threadedly connected to the bottom of the connecting pipe (102). A three-way pipe (104) is installed inside the square tube (103). The connecting pipe (102) passes through the square tube (103) and communicates with the three-way pipe (104). A connecting plate (105) is provided on one side of 03), a motor (106) is provided on one side of the connecting plate (105), an active dial (107) is rotatably connected to the output end of the motor (106), a cylindrical pin (108) is rotatably connected above the active dial (107), a grooved wheel (109) is rotatably connected to the outside of the three-way pipe (104), and a frame (110) is rotatably connected to the outside of the grooved wheel (109) and the active dial (107).

2. The tin paste precision metering and dispensing device according to claim 1, characterized in that: A connecting pipe (111) is threaded to the bottom of the square tube (103), and the connecting pipe (111) passes through the square tube (103) and is connected to the tee pipe (104).

3. The tin paste precision metering and dispensing device according to claim 2, characterized in that: A sealing cap (112) is fixedly connected to the lower part of the connecting pipe (111). The inner part of the sealing cap (112) is provided with an internal thread (201). A discharge cylinder (202) is provided below the sealing cap (112). An external thread (203) is provided on the outer side of the discharge cylinder (202). The discharge cylinder (202) is threadedly connected to the sealing cap (112). A nozzle (113) is provided below the discharge cylinder (202).

4. The tin paste precise metering and dispensing device according to claim 1, characterized in that: The storage hopper (101) has an external thread (204) on its outer side and a sealing cover (205) on its upper side. The sealing cover (205) has an internal thread (206) inside and is threadedly connected to the sealing cover (205).

5. The tin paste precise metering and dispensing device according to claim 1, characterized in that: A support frame (207) is fixedly connected to the outside of the storage hopper (101) and the discharge hopper (202). A second motor (208) is installed above the support frame (207), and a second gear (209) is rotatably connected to the output end of the second motor (208).

6. The tin paste precision metering and dispensing device according to claim 5, characterized in that: A through hole is provided above the sealing cover (205), and a cylinder (210) is provided inside the through hole. A gear (211) is rotatably connected above the cylinder (210). The gear (211) meshes with a gear (209). A threaded rod (301) is rotatably connected above the gear (211). A groove is provided above the threaded rod (301). A rotating plate (302) is rotatably connected inside the groove. A threaded rod (303) is rotatably connected below the rotating plate (302). A piston (304) is provided below the threaded rod (303). The piston (304) slides inside the cylinder (210).

7. The tin paste precise metering and dispensing device according to claim 5, characterized in that: The lower part of the support frame (207) is fixedly connected with a base (305), the upper part of the base (305) is provided with a groove, the outer side of the groove is provided with an arc-shaped support plate (306), one side of the arc-shaped support plate (306) is fixedly connected with a plurality of springs (307), and the other side of the spring (307) is fixedly connected with a rubber plate (308).

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