Uniform stirring device for solder paste production raw materials

Abstract

The utility model relates to the technical field of solder paste production devices, in particular to a uniform stirring device for solder paste production raw materials, which comprises a stirring drum, a heat exchange drum and a driving component, a heat exchange tube is arranged on the inner side of the stirring drum, the heat exchange drum is arranged on the outer side of the stirring drum, and a partition plate and a circulation plate are arranged in a space between the stirring drum and the heat exchange drum. A water inlet pipe is arranged on the outer side of the heat exchange cylinder, a water outlet pipe is arranged on the outer side of the heat exchange cylinder, a first rotating shaft is arranged on the inner side of the stirring cylinder, first stirring rods used for stirring are arranged on the outer side of the first rotating shaft, and a driving assembly used for driving the first rotating shaft to rotate is arranged above the stirring cylinder; the heat exchange cylinder is arranged on the outer side of the stirring cylinder, and the heat exchange pipes which are vertically staggered in the horizontal direction are arranged on the inner side of the stirring cylinder, so that water can form a water path penetrating through the interior of the stirring cylinder in the stirring cylinder and the heat exchange cylinder under the matching of the partition plate and the circulating plate; and the water can exchange heat with the solder paste deep in the stirring barrel.

Description

TECHNICAL FIELD

[0001] The utility model relates to tin paste production device technical field especially tin paste production raw material's even stirring device. BACKGROUND

[0002] Tin paste is a material for electronic welding, and the main components include flux and metal particles. Its main function is to make metal particles into paste to adapt to the printing process, and control the flowability of tin paste, remove the oxide of the welding surface and tin paste, so as to improve the welding performance.

[0003] When tin paste is produced, metal tin powder and soldering paste installation proportion need to be mixed and stirred, and the approximate process is to put various raw materials into the stirring machine, and the rotation of the stirring rod is used to stir and mix various raw materials, and due to the material properties of tin paste, the temperature needs to be kept at about 25 DEG C, so 25 DEG C circulating water is usually set outside the stirring container to exchange heat with tin paste and keep warm.

[0004] Because the water only circulates outside the glue stick container, it can only have a better heat exchange effect on the tin paste at the edge of the container, and the heat preservation capacity of the tin paste on the inside is poor. In summer or winter, the temperature difference is large, and it takes a long time to cool or heat the material, which delays production and causes a large temperature difference between the inner and outer walls of the stirring tank, producing water droplets and affecting product quality. UTILITY MODEL CONTENTS

[0005] In order to overcome the problem that most tin paste stirring devices have uneven heat preservation effect.

[0006] The technical scheme of the utility model is: a uniform stirring device for tin paste production raw materials, which comprises a stirring cylinder, a heat exchange cylinder and a driving assembly, the inside of the stirring cylinder is provided with heat exchange pipes for water flow, the heat exchange pipes are arranged perpendicular to each other in the horizontal direction, the outside of the stirring cylinder is provided with the heat exchange cylinder, and a certain space is separated between the stirring cylinder and the heat exchange cylinder. A partition plate and a flow-through plate are arranged in the space between the stirring cylinder and the heat exchange cylinder, the partition plate and the flow-through plate are located at the turning junction of the heat exchange pipes, the flow-through plate is provided with holes for water flow, the partition plate is fully closed, the outside of the heat exchange cylinder is provided with an inlet pipe, the outside of the heat exchange cylinder is provided with an outlet pipe, the inside of the stirring cylinder is provided with a first rotating shaft, the outside of the first rotating shaft is provided with a first stirring rod for stirring, and the upper part of the stirring cylinder is provided with a driving assembly for driving the first rotating shaft to rotate.

[0007] Preferably, the upper part of the stirring cylinder is provided with a feeding pipe, the bottom of the stirring cylinder is provided with a discharging pipe, and the side of the discharging pipe is provided with a valve.

[0008] The inner side of the first rotating shaft is provided with the second rotating shaft, one side of the first rotating shaft is provided with a mounting seat, the inner side of the mounting seat is provided with a worm gear, and the second rotating shaft is provided with a worm at the connection position of the worm gear.

[0009] The first stirring rod is fixedly connected with the worm gear, the first stirring rod is rotationally connected with the mounting seat, the outer side of the first stirring rod is provided with a second stirring rod, the second stirring rod is perpendicular to the first stirring rod, and the length of the second stirring rod is smaller than the interval of the heat exchange pipes of different levels.

[0010] The driving assembly comprises a driven gear and a second force block, the upper side of the first rotating shaft is fixedly connected with the driven gear, and the upper side of the second rotating shaft is fixedly connected with the second force block.

[0011] The upper side of the second force block is provided with a driving motor, the second force block is fixedly connected with the output end of the driving motor, the second force block is rotationally connected with the driven gear, the contact surface between the driven gear and the second force block is provided with a plurality of rolling balls, and the contact surface between the driven gear and the stirring barrel is also provided with a plurality of rolling balls.

[0012] The side of the driven gear is provided with a transmission gear, the driven gear and the transmission gear are in meshing connection with each other, the upper side of the transmission gear is provided with a first force block, and the first force block and the second force block are provided with a transmission belt therebetween.

[0013] The beneficial effects of the present application are as follows:

[0014] The heat exchange cylinder is arranged on the outer side of the stirring cylinder, the heat exchange pipes are arranged on the inner side of the stirring cylinder and are vertically staggered in the horizontal direction, water can form a water path penetrating through the inside of the stirring cylinder in the stirring cylinder and the heat exchange cylinder under the cooperation of the partition plate and the flow-through plate, and the water can perform heat exchange on the tin paste in the deep part of the stirring cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The present application is a three-dimensional structure schematic diagram of the present application;

[0016] Figure 2 The present application is a three-dimensional structure schematic diagram of the heat exchange cylinder of the present application;

[0017] Figure 3 The present application is a three-dimensional structure schematic diagram of the heat exchange pipe of the present application;

[0018] Figure 4 The present application is a three-dimensional structure schematic diagram of the first stirring rod of the present application

[0019] Figure 5 The present application is a three-dimensional structure schematic diagram of the driving assembly of the present application.

[0020] Explanation of reference signs: 1, stirring cylinder; 2, heat exchange cylinder; 3, heat exchange pipe; 4, driving motor; 5, first rotating shaft; 6, second rotating shaft; 7, first stirring rod; 8, second stirring rod; 101, feeding pipe; 102, discharging pipe; 103, valve; 201, partition plate; 202, flow-through plate; 203, water inlet pipe; 204, water outlet pipe; 501, mounting seat; 601, worm; 701, worm wheel; 901, driven gear; 902, transmission gear; 903, first force block; 904, second force block; 905, transmission belt; 906, ball. DETAILED DESCRIPTION

[0021] The utility model is further explained below in combination with the drawings and examples.

[0022] Please refer to Figures 1-5 The utility model provides a kind of embodiment: uniform stirring device of tin paste production raw material, including stirring cylinder 1, heat exchange cylinder 2 and driving assembly, the inside of stirring cylinder 1 is provided with the heat exchange pipe 3 for water flow-through, heat exchange pipe 3 is mutually perpendicular in horizontal direction arrangement, the outside of stirring cylinder 1 is provided with heat exchange cylinder 2, stirring cylinder 1 and heat exchange cylinder 2 are separated by certain space, space between stirring cylinder 1 and heat exchange cylinder 2 is provided with partition plate 201 and flow-through plate 202, partition plate 201 and flow-through plate 202 are at the turning junction of heat exchange pipe 3, flow-through plate 202 is opened with the hole for water flow-through, partition plate 201 is totally closed, the outside of heat exchange cylinder 2 is provided with water inlet pipe 203, the outside of heat exchange cylinder 2 is provided with water outlet pipe 204, the inside of stirring cylinder 1 is provided with first rotating shaft 5, the outside of first rotating shaft 5 is provided with the first stirring rod 7 for stirring, the top of stirring cylinder 1 is provided with the driving assembly for driving first rotating shaft 5 rotation and driving first stirring rod 7 to stir tin paste;By being provided with heat exchange cylinder 2 in the outside of stirring cylinder 1, and being provided with heat exchange pipe 3 that is perpendicular to stagger in horizontal direction in the inside of stirring cylinder 1, water can form a waterway that is through the inside of stirring cylinder 1 in the cooperation of partition plate 201 and flow-through plate 202 in stirring cylinder 1 and heat exchange cylinder 2, so that water can heat exchange tin paste in the deep place of stirring cylinder 1, and the driving assembly is used to drive first rotating shaft 5 to rotate and drive first stirring rod 7 to stir tin paste.

[0023] Please refer to Figure 1 In the embodiment, the top of stirring cylinder 1 is provided with feeding pipe 101, the bottom of stirring cylinder 1 is provided with discharging pipe 102, one side of discharging pipe 102 is provided with valve 103;Feeding pipe 101 is used to introduce raw material into stirring cylinder 1, discharging pipe 102 is used to discharge tin paste after stirring, and valve 103 is used to control the flow-through state of discharging pipe 102.

[0024] Please refer to Figures 4-5In the embodiment, the inner side of the first rotating shaft 5 is provided with the second rotating shaft 6, one side of the first rotating shaft 5 is provided with the mounting seat 501, the inner side of the mounting seat 501 is provided with the worm wheel 701, the connecting part of the second rotating shaft 6 and the worm wheel 701 is provided with the worm 601, the first stirring rod 7 is fixedly connected with the worm wheel 701, the first stirring rod 7 is rotatably connected with the mounting seat 501, the outer side of the first stirring rod 7 is provided with the second stirring rod 8, the second stirring rod 8 is perpendicular to the first stirring rod 7, the length of the second stirring rod 8 is less than the interval of the different levels of heat exchange pipes 3, the driving assembly comprises the driven gear 901 and the second stress block 904, the upper side of the first rotating shaft 5 is fixedly connected with the driven gear 901, the upper side of the second rotating shaft 6 is fixedly connected with the second stress block 904, the upper side of the second stress block 904 is provided with the driving motor 4, the second stress block 904 is fixedly connected with the output end of the driving motor 4, the second stress block 904 is rotatably connected with the driven gear 901, the contact surface of the driven gear 901 and the second stress block 904 is provided with the ball 906, the contact surface of the driven gear 901 and the stirring barrel 1 is also provided with the ball 906, one side of the driven gear 901 is provided with the transmission gear 902, the driven gear 901 and the transmission gear 902 are mutually engaged, the upper side of the transmission gear 902 is provided with the first stress block 903, the first stress block 903 and the second stress block 904 are provided with the transmission belt 905; during stirring, the driving motor 4 drives the second stress block 904 to rotate, drives the second rotating shaft 6 to rotate forward, at the same time, drives the first stress block 903 and the transmission gear 902 to rotate forward by the transmission belt 905, the rotating transmission gear 902 drives the driven gear 901 to rotate reversely, so that the second rotating shaft 6 rotates reversely to drive the first stirring rod 7 to stir the material in horizontal mode, the rotating second rotating shaft 6 drives the first stirring rod 7 to rotate around its own axis by the worm 601 and the worm wheel 701, so that the second stirring rod 8 stirs the material in vertical direction.

[0025] In use, the raw materials are put into the stirring drum 1 from the feeding pipe 101, the motor 4 drives the second force block 904 to rotate, driving the second rotating shaft 6 to rotate forward, and at the same time, the first force block 903 and the transmission gear 902 are driven to rotate forward by the transmission belt 905, the transmission gear 902 drives the driven gear 901 to rotate reversely, so that the second rotating shaft 6 rotates reversely to drive the first stirring rod 7 to stir the materials in a horizontal manner, the rotating second rotating shaft 6 drives the first stirring rod 7 to rotate around its axis by the worm 601 and the worm wheel 701, so that the second stirring rod 8 stirs the materials in a vertical direction, in the stirring process, the water enters the heat exchange cylinder 2 from the water inlet pipe 203, and flows in the water path formed by the partition plate 201, the flow-through plate 202 and the heat exchange pipe 3, and flows out from the water outlet pipe 204, since the heat exchange pipe 3 penetrates the stirring drum 1, the water can be heat exchanged with the materials in the stirring drum 1, and the multi-directional stirring of the first stirring rod 7 and the second stirring rod 8 makes the temperature of the solder paste uniform, after the stirring is completed, the valve 103 is opened to discharge the solder paste from the discharge pipe 102.

[0026] Through the above steps, by setting the heat exchange cylinder 2 outside the stirring drum 1, and setting the heat exchange pipes 3 vertically staggered in the horizontal direction inside the stirring drum 1, the water can form a water path penetrating the inside of the stirring drum 1 in the stirring drum 1 and the heat exchange cylinder 2 under the cooperation of the partition plate 201 and the flow-through plate 202, so that the water can heat exchange with the solder paste deep inside the stirring drum 1, and the driving assembly is used to drive the first rotating shaft 5 to rotate and drive the first stirring rod 7 to stir the solder paste.

Claims

1. A device for uniformly mixing raw materials for solder paste production, comprising a mixing drum (1); characterized in that: It also includes a heat exchange cylinder (2) and a drive assembly. A heat exchange tube (3) for water circulation is provided inside the stirring cylinder (1). The heat exchange tubes (3) are arranged perpendicularly to each other in the horizontal direction. A heat exchange cylinder (2) is provided outside the stirring cylinder (1). There is a certain space between the stirring cylinder (1) and the heat exchange cylinder (2). A partition plate (201) and a flow plate (202) are provided in the space between the stirring cylinder (1) and the heat exchange cylinder (2). The partition plate (201) and the flow plate (202) are located between the heat exchange tubes (201 and 202). At the turning junction of 3), the flow plate (202) has holes for water to flow through, the partition plate (201) is fully enclosed, the heat exchange cylinder (2) is provided with an inlet pipe (203) on the outside, the heat exchange cylinder (2) is provided with an outlet pipe (204) on the outside, the stirring cylinder (1) is provided with a first rotating shaft (5) on the inside, the first stirring rod (7) for stirring is provided on the outside of the first rotating shaft (5), and a driving assembly for driving the first rotating shaft (5) to rotate is provided above the stirring cylinder (1).

2. The uniform stirring device for solder paste production raw materials according to claim 1, characterized in that: A feed pipe (101) is provided above the mixing drum (1), a discharge pipe (102) is provided at the bottom of the mixing drum (1), and a valve (103) is provided on one side of the discharge pipe (102).

3. The uniform stirring device for solder paste production raw materials according to claim 1, characterized in that: A second rotating shaft (6) is provided on the inner side of the first rotating shaft (5), a mounting base (501) is provided on one side of the first rotating shaft (5), a worm gear (701) is provided on the inner side of the mounting base (501), and a worm (601) is provided at the connection between the second rotating shaft (6) and the worm gear (701).

4. The uniform stirring device for solder paste production raw materials according to claim 3, characterized in that: The first stirring rod (7) is fixedly connected to the worm gear (701), and the first stirring rod (7) is rotatably connected to the mounting base (501). A second stirring rod (8) is provided on the outside of the first stirring rod (7). The second stirring rod (8) is perpendicular to the first stirring rod (7). The length of the second stirring rod (8) is less than the spacing between the heat exchange tubes (3) of different levels.

5. The uniform stirring device for solder paste production raw materials according to claim 3, characterized in that: The drive assembly includes a driven gear (901) and a second force-bearing block (904). The driven gear (901) is fixedly connected above the first rotating shaft (5), and the second force-bearing block (904) is fixedly connected above the second rotating shaft (6).

6. The uniform stirring device for solder paste production raw materials according to claim 5, characterized in that: A drive motor (4) is provided above the second force block (904). The second force block (904) is fixedly connected to the output end of the drive motor (4). The second force block (904) is rotatably connected to the driven gear (901). The contact surface between the driven gear (901) and the second force block (904) is provided with ball bearings (906). The contact surface between the driven gear (901) and the stirring drum (1) is also provided with ball bearings (906).

7. The uniform stirring device for solder paste production raw materials according to claim 5, characterized in that: A drive gear (902) is provided on one side of the driven gear (901). The driven gear (901) and the drive gear (902) mesh with each other. A first force-bearing block (903) is provided above the drive gear (902). A drive belt (905) is provided between the first force-bearing block (903) and the second force-bearing block (904).

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