Quantitative tin paste dispensing mechanism

Abstract

The utility model belongs to the field of electronic industry manufacturing technology, specifically speaking is a kind of quantitative tin paste glue dispensing mechanism, including the glue dispenser body The side of glue dispenser is fixedly connected with storage bucket, the bottom of storage bucket is equipped with passageway, the other end of glue dispenser is fixedly connected with fixed block, the inside wall of fixed block is equipped with round hole, the round hole is slidably connected with sliding rod, one end of sliding rod is fixedly connected with limit block one, the top of glue dispenser is slidably connected with push-pull rod, the middle upper portion of glue dispenser is provided with glue storage area, the bottom of glue storage area is provided with feeding port, the bottom of feeding port is provided with discharge port. Through the design of push-pull rod and sliding rod, limit block one, the solution flow path can be controlled, the solution output per unit time can be adjusted according to demand by starting push-pull rod, accurate quantitative control can ensure that the solution amount used by glue dispensing meets the actual demand, and solution waste caused by excessive glue dispensing amount is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of electronic manufacturing technology, specifically a quantitative solder paste dispensing mechanism. Background Technology

[0002] In scientific research and experimental fields such as electronic materials research and welding process development, quantitative solder paste dispensing mechanisms are used to accurately prepare experimental samples, providing accurate experimental conditions for studying the effects of different solder paste compositions and different dispensing amounts on welding performance.

[0003] In existing technologies, quantitative solder paste dispensing mechanisms mainly achieve quantitative dispensing of solder paste by controlling the extrusion amount and dispensing position.

[0004] Currently, most solder paste dispensing mechanisms employ a manual extrusion method, with operators relying primarily on experience and feel to control the amount of paste. However, this method lacks precise metering and automated control mechanisms, resulting in poor paste consistency and insufficient batch stability, making it difficult to meet the high-precision, high-repeatability quantitative process requirements of the electronics manufacturing industry. Therefore, this paper proposes a quantitative solder paste dispensing mechanism to address these issues. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a quantitative solder paste dispensing mechanism.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The present utility model provides a quantitative solder paste dispensing mechanism, including a dispensing machine body; characterized in that: a storage bucket is fixedly connected to one side of the dispensing machine, a fixing block is fixedly connected to the other end of the dispensing machine, a circular hole is opened on the inner side wall of the fixing block, a sliding rod is slidably connected in the circular hole, a limit block is fixedly connected to one end of the sliding rod, a push-pull rod is slidably connected to the top of the dispensing machine, a glue storage area is provided in the upper middle part of the dispensing machine, a feeding port is provided at the bottom of the glue storage area, and a discharging port is provided at the bottom of the feeding port.

[0007] Preferably, a fixing plate is fixedly connected to one side of the storage bin, and a circular hole is opened on the inner side wall of the fixing plate. A rotating rod is slidably connected in the circular hole. A fixing plate is fixedly connected to the top of the storage bin, and a connecting rod is fixedly connected to the top of the fixing plate. One end of the connecting rod is rotatably connected to a rotating rod.

[0008] Preferably, the bottom of the dispensing machine is fixedly connected to a channel, the inner sidewall of the channel is provided with a threaded groove, and a heat-conducting wire is fixedly connected in the threaded groove.

[0009] Preferably, an output head is slidably connected to the inner wall of the channel, and a circular hole is opened on the outer wall of the channel. A fixing rod is slidably connected inside the circular hole, and a limit block two is fixedly connected to one end of the fixing rod.

[0010] Preferably, a rubber ring is fixed to the bottom of the channel.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model provides a quantitative solder paste dispensing mechanism. Through the linkage design of the push-pull rod, sliding rod, and limiting block, it enables precise control of the solution flow path and pressure. When the limiting block moves outward to expose the discharge port, the push-pull rod activates, allowing the pressure to be adjusted according to actual needs. The pressure is stable and precise, thereby controlling the amount of solution output from the discharge port per unit time, achieving quantitative dispensing. The sliding design of the sliding rod and limiting block allows the operator to adjust the position of the limiting block to change the degree and duration of the downward channel opening according to different quantitative dispensing requirements. This allows dispensing tasks with different viscosities and volume requirements to be handled through this adjustment. Combined with the pressure setting of the pressure pump, precise quantitative control ensures that the amount of solution used for each dispensing matches the actual demand, avoiding solution waste due to excessive dispensing. In large-scale production, long-term accumulation can significantly reduce production costs. Simultaneously, it prevents excess solution overflow, maintains a clean working environment, and reduces cleaning and maintenance costs.

[0013] 2. This utility model provides a quantitative solder paste dispensing mechanism. By changing the output heads of different diameters, the amount of adhesive, the shape of the adhesive dots, and the coating range can be flexibly controlled. Different diameter output heads are suitable for adhesives with different viscosities and flow requirements, ensuring accurate dispensing in various dispensing scenarios. There is no need to equip multiple dedicated dispensing machines for different dispensing needs; multiple functions can be achieved simply by changing the output heads, reducing equipment purchase costs. The design of the fixing rod and limit block two makes the output head replacement operation simple and intuitive. The sliding connection between the output head and the channel structure, along with the limiting design of the fixing rod, ensures convenient replacement of the output head while ensuring stable installation during operation, preventing loosening or displacement from affecting the dispensing effect. Limit block two prevents the fixing rod from accidentally falling off, ensuring the safety and stability of equipment operation, reducing the risk of failure due to loose components, and extending the service life of the equipment. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1This is a perspective view of the present invention;

[0016] Figure 2 This is a cross-sectional view of the quantitative device of this utility model;

[0017] Figure 3 This is a perspective view of the present invention;

[0018] Figure 4 This is an enlarged view of A in this utility model;

[0019] Figure 5 This is a cross-sectional view of the output channel of this utility model;

[0020] Legend:

[0021] 1. Dispensing machine; 101. Storage bin; 102. Fixing block; 103. Sliding rod; 104. Limiting block one; 105. Push-pull rod; 106. Glue storage area; 107. Feed port; 108. Discharge port; 2. Fixing plate one; 201. Rotating rod; 202. Fixing plate two; 203. Connecting rod; 3. Channel; 301. Heating wire; 4. Output head; 401. Fixing rod; 402. Limiting block two; 5. Rubber ring; 6. Handle. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] Please see Figures 1-5This utility model provides a quantitative solder paste dispensing mechanism, including a dispensing machine body 1; characterized in that: a storage tank 101 is fixedly connected to one side of the dispensing machine 1, the bottom of the storage tank 101 is provided with a channel, a fixing block 102 is fixedly connected to the other end of the dispensing machine 1, a circular hole is opened on the inner side wall of the fixing block 102, a sliding rod 103 is slidably connected in the circular hole, a limit block 104 is fixedly connected to one end of the sliding rod 103, a push-pull rod 105 is slidably connected to the top of the dispensing machine 1, a glue storage area 106 is provided in the upper middle part of the dispensing machine 1, a feeding port 107 is provided at the bottom of the glue storage area 106, and a discharging port 108 is provided at the bottom of the feeding port 107. During operation, the storage tank 101 is used to store the solution required for dispensing, and its bottom channel provides a path for the solution to flow into the dispensing machine body 1. The solution flows into the glue storage area 106 inside the dispensing machine body through this channel, relying on gravity or pressure difference for temporary storage. The push-pull rod 105 is slidably connected to the top of the dispensing machine body. When the limit block 104 moves outward, the push-pull rod is activated, providing power for the flow of the solution inside the dispensing machine. By generating pressure, the solution temporarily stored in the channel is pushed to the glue storage area 106 of the dispensing machine body according to the set program and process requirements. The sliding rod 103 slides in the circular hole of the fixed block 102, and the limit block 104 is fixed to one end of the sliding rod. When the limit block 104 moves inward, it opens the relevant channels of the dispensing machine, allowing the solution to flow between the channels inside the dispensing machine; when the limit block 104 moves outward, it exposes the discharge port 108 at the bottom of the dispensing machine body and triggers the operation of the push-pull rod 105. As the push-pull rod 105 continues to work, the pressure change causes the solution located at the feed port 107 to be output through the discharge port 108 exposed at the bottom. The solution passes through this channel and is eventually extruded from the dispensing head, precisely dripping onto the target workpiece to complete the dispensing operation. The entire process achieves solution storage, transfer, and precise dispensing through the coordinated cooperation of various components.

[0025] Furthermore, such as Figure 3 and Figure 4As shown, a fixing plate 2 is fixedly connected to one side of the storage bin 101. A circular hole is opened on the inner side wall of the fixing plate 2, and a rotating rod 201 is slidably connected in the circular hole. A fixing plate 202 is fixedly connected to the top of the storage bin 101, and a connecting rod 203 is fixedly connected to the top of the fixing plate 202. One end of the connecting rod 203 is rotatably connected to the rotating rod 201. During operation, the rotating rod 201 is rotatably connected to one end of the connecting rod 203, which allows the rotating rod 201 to rotate at the connection point with the connecting rod 203. The fixing plate 2 provides a sliding track for the rotating rod 201, restricting its direction of movement and ensuring that the rotating rod 201 can only slide in a set straight line direction, thus ensuring the stability and accuracy of the structural movement. The fixing plate 202 is fixed to the top of the storage bin, and one end of the connecting rod 203 is fixed to the fixing plate 202, while the other end is connected to the rotating rod 201. The connecting rod 203 serves to transmit force and change its direction. Its rotational connection with the rotating rod 201 allows the rotating rod 201 to change angle during sliding. When an external force is applied to this structure, the rotating rod 201 slides within the circular hole of the fixed plate 2. During sliding, due to the rotational connection between the connecting rod 203 and the rotating rod 201, the rotating rod 201 rotates around the connection point, thus achieving a certain angle of oscillation.

[0026] Furthermore, such as Figure 5 As shown, the bottom of the dispensing machine 1 is fixedly connected to a channel 3. A threaded groove is formed on the inner wall of the channel 3, and a heat-conducting wire 301 is fixedly connected within the threaded groove. During operation, when the dispensing machine is turned on, the power supply provides current to the heat-conducting wire 301. Since the heat-conducting wire itself has a certain resistance, when current passes through it, electrical energy is converted into heat energy, causing the heat-conducting wire to heat up. When the heat-conducting wire 301 generates heat, the heat is transferred through the inner wall of the channel 3 to the solder paste flowing within the channel. This raises the temperature within the channel, keeping the solder paste in a relatively high temperature environment, maintaining its fluidity, and effectively preventing the solder paste from solidifying within the channel. In this way, the solder paste can smoothly pass through the channel for dispensing operations, ensuring the normal operation of the dispensing machine and the quality of dispensing.

[0027] Furthermore, such as Figure 5An output head 4 is slidably connected to the inner wall of the channel 3 shown. A circular hole is opened on the outer wall of the channel 3, and a fixing rod 401 is slidably connected inside the circular hole. One end of the fixing rod 401 is fixedly connected to a limiting block 402. During operation, the fixing rod 401 slides within the circular hole on the outer wall of the channel 3, and the limiting block 402 at one end prevents the fixing rod from coming out of the circular hole. During normal operation, the fixing rod restricts the position of the output head, ensuring that the output head is securely installed in the channel and maintaining the stability of the dispensing process. When different dispensing requirements necessitate changing the output head to a different diameter, the fixing rod 401 is pulled out to release it from the position restricting the output head. Because the output head can slide within the channel, when the fixing rod is pulled out, the restriction on the output head is released, allowing the original output head to slide out of the channel. Then, a new output head that meets the requirements is slid into the channel, and finally, the fixing rod is inserted to re-restrict the position of the output head, completing the output head replacement and meeting different dispensing process requirements.

[0028] Furthermore, such as Figure 5 As shown, a rubber ring 5 is fixed to the bottom of the channel 3. During operation, the rubber has good elasticity and flexibility. When fluids such as solder paste pass through the channel 3, the rubber ring 5 can tightly fit the output head 4 to prevent fluid leakage from the gaps at the bottom of the channel, ensuring that the adhesive can flow out from the designated output head during the dispensing process, and maintaining the sealing and integrity of the dispensing system.

[0029] Working Principle: During operation, the storage tank 101 stores the solution required for dispensing, and its bottom channel provides a path for the solution to flow into the dispensing machine body 1. The solution flows through this channel into the glue storage area 106 inside the dispensing machine body for temporary storage, relying on gravity or pressure difference. The push-pull rod 105 is slidably connected to the top of the dispensing machine body. When the limiting block 104 moves outward, the push-pull rod is activated, providing power for the flow of the solution within the dispensing machine. By generating pressure, the solution temporarily stored in the channel is pushed to the glue storage area 106 of the dispensing machine body according to the set program and process requirements. The sliding rod 103 slides within the circular hole of the fixed block 102, and the limiting block 104 is fixed to one end of the sliding rod. When the limiting block 104 moves inward, it opens the relevant channels of the dispensing machine, allowing the solution to flow between the internal channels. When the limiting block 104 moves outward, it exposes the discharge port 108 at the bottom of the dispensing machine body and triggers the push-pull rod 105. As the push-pull rod 105 continues to operate, the pressure change causes the solution located at the loading port 107 to be output through the exposed discharge port 108 at the bottom. The solution passes through this channel and is finally extruded from the dispensing head, precisely dripping onto the target workpiece to complete the dispensing operation. The entire process achieves solution storage, transmission, and precise dispensing through the coordinated cooperation of various components. The rotating rod 201 is rotatably connected to one end of the connecting rod 203, allowing the rotating rod 201 to rotate at the connection point. The fixing plate 2 provides a sliding track for the rotating rod 201, restricting its direction of movement and ensuring that the rotating rod 201 can only slide in a set straight line, thus guaranteeing the stability and accuracy of the structural movement. The fixing plate 202 is fixed to the top of the storage bin. One end of the connecting rod 203 is fixed to the fixing plate 202, and the other end is connected to the rotating rod 201. The connecting rod 203 transmits force and changes its direction. Its rotatable connection with the rotating rod 201 allows the rotating rod 201 to change angles during sliding. When an external force is applied to the structure, the rotating rod 201 slides within the circular hole of the fixing plate 2. During sliding, due to the rotatable connection between the connecting rod 203 and the rotating rod 201, the rotating rod 201 rotates around the connection point, thus achieving a certain angle of oscillation. When the dispensing machine is turned on, the power supply provides current to the heating wire 301. Because the heat-conducting wire itself has a certain resistance, when current flows through it, electrical energy is converted into heat energy, causing the heat-conducting wire to heat up. Once the heat-conducting wire 301 generates heat, the heat is transferred through the inner wall of channel 3 to the solder paste flowing within the channel. This raises the temperature within the channel, keeping the solder paste in a relatively high temperature environment, maintaining its fluidity, and effectively preventing the solder paste from solidifying within the channel. In this way, the solder paste can smoothly pass through the channel for dispensing, ensuring the normal operation of the dispensing machine and the quality of dispensing. The fixing rod 401 slides within the circular hole on the outer wall of channel 3, and the limiting block 402 connected to one end prevents the fixing rod from dislodging from the circular hole.During normal operation, the fixing rod restricts the position of the output head, ensuring its secure installation within the channel and maintaining dispensing stability. When different dispensing requirements necessitate changing the output head to a different diameter, the fixing rod 401 is pulled out of its restrictive position. Because the output head can slide within the channel, once the fixing rod is pulled out, the restriction on the output head is released, allowing the original output head to slide out of the channel. A new output head meeting the requirements can then be slid into the channel, and finally, the fixing rod is inserted to re-restrict the output head's position, completing the output head replacement and satisfying different dispensing process needs. Rubber possesses excellent elasticity and flexibility. When fluids such as solder paste pass through channel 3, the rubber ring 5 tightly conforms to the output head 4, preventing fluid leakage from gaps at the bottom of the channel. This ensures that the adhesive flows from the designated output head during dispensing, maintaining the sealing and integrity of the dispensing system.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A quantitative solder paste dispensing mechanism, comprising a dispensing machine (1); characterized in that: A storage bin (101) is fixedly connected to one side of the dispensing machine (1). A channel is provided at the bottom of the storage bin (101). A fixing block (102) is fixedly connected to the other end of the dispensing machine (1). A circular hole is provided on the inner side wall of the fixing block (102). A sliding rod (103) is slidably connected in the circular hole. A limit block (104) is fixedly connected to one end of the sliding rod (103). A push-pull rod (105) is slidably connected to the top of the dispensing machine (1). A glue storage area (106) is provided in the upper middle part of the dispensing machine (1). A loading port (107) is provided at the bottom of the glue storage area (106). A discharge port (108) is provided at the bottom of the loading port (107).

2. The quantitative solder paste dispensing mechanism according to claim 1, characterized in that: A fixing plate (2) is fixedly connected to one side of the storage bin (101). A circular hole is opened on the inner side wall of the fixing plate (2). A rotating rod (201) is slidably connected in the circular hole. A fixing plate (202) is fixedly connected to the top of the storage bin (101). A connecting rod (203) is fixedly connected to the top of the fixing plate (202). One end of the connecting rod (203) is rotatably connected to the rotating rod (201).

3. The quantitative solder paste dispensing mechanism according to claim 1, characterized in that: The bottom of the dispensing machine (1) is fixedly connected to a channel (3), and the inner sidewall of the channel (3) is provided with a threaded groove, and a heat-conducting wire (301) is fixedly connected in the threaded groove.

4. The quantitative solder paste dispensing mechanism according to claim 3, characterized in that: The inner wall of the channel (3) is slidably connected to an output head (4), and the outer wall of the channel (3) is provided with a circular hole. A fixing rod (401) is slidably connected in the circular hole, and one end of the fixing rod (401) is fixedly connected to a limit block (402).

5. The quantitative solder paste dispensing mechanism according to claim 4, characterized in that: A rubber ring (5) is fixed to the bottom of the channel (3).

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