A tin paste stirring uniformity monitor

Abstract

The utility model discloses a kind of tin paste stirring uniformity monitor, including workbench, the workbench upper surface center position is equipped with insertion slot, the inside of the insertion slot is inserted with holding cup, further including limiting lifting mechanism, the limiting lifting mechanism is used to limit and lift after holding cup monitoring of holding cup, the center of the workbench upper surface rear end is fixedly connected with fixed seat, the inside of the fixed seat is provided with lifting mechanism.The utility model can drive the rotation of first gear by motor starting in workbench, first gear can promote the second gear on rotating lever and make rotating lever rotate at this time, meanwhile, winding shaft on the both sides of rotating lever can be pulled by pull rope to drive movable block, and make movable block drive clamping block to be extracted from the clamping groove on holding cup, then rotating lever drives push block to rotate, can make push block promote the bottom end of holding cup to lift.

Description

Technical Field

[0001] This utility model relates to the field of solder paste monitoring technology, specifically to a solder paste mixing uniformity monitoring instrument. Background Technology

[0002] A solder paste mixing uniformity monitor is a viscosity sensor-based device used to monitor the uniformity of solder paste during the mixing process in real time. Its working principle involves measuring the viscosity change of the solder paste using a rotational viscometer; the viscosity value changes as the mixing uniformity increases or decreases. When the solder paste is not mixed uniformly, the viscosity will fluctuate, and the sensor will send real-time data back to the data processing module. The system determines whether the solder paste is uniform by analyzing the stability of the viscosity.

[0003] However, the monitoring instrument has certain limitations. During the monitoring of solder paste in the container, the force generated by stirring may cause the container to shake, affecting the solder paste detection results and potentially causing solder paste to be spilled and wasted, thus affecting the stability of the monitoring instrument. Utility Model Content

[0004] The purpose of this invention is to provide a solder paste mixing uniformity monitoring instrument to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a solder paste mixing uniformity monitoring instrument, including a worktable, an insertion slot is provided at the center of the upper surface of the worktable, a holding cup is inserted inside the insertion slot, and a limiting and lifting mechanism is also included. The limiting and lifting mechanism is used to limit the holding cup and lift it after monitoring. A fixed seat is fixedly connected to the center of the rear end of the upper surface of the worktable. A lifting mechanism is provided inside the fixed seat. A rotational viscometer is provided at the front end of the lifting mechanism. Pressing mechanisms are provided on both sides of the rotational viscometer. A pressing plate is provided at the middle position of the lower surface of the two pressing mechanisms.

[0006] Preferably, the limiting lifting mechanism includes a motor fixedly connected to the bottom of the worktable, a first gear installed on the output shaft of the motor, a rotating rod rotatably connected to the center position inside the worktable, a second gear meshing with the first gear fixedly connected to the left side outside the rotating rod, and a toggle block fixedly connected to the center position of the rotating rod.

[0007] Preferably, a take-up shaft that rotates within the workbench is fixedly connected to the left and right sides of the rotating rod, and a pull rope is fixedly connected to one side of the outer side of the take-up shaft. Movable grooves are opened on the left and right sides inside the workbench, and a rotating shaft is rotatably connected to the outer side of the movable groove. A movable block that is fixedly connected to the pull rope is slidably connected inside the movable groove. A locking block is fixedly connected to the inner side of the movable block, and a first spring is fixedly connected to the outer side of the movable block. The bottom ends of the left and right sides of the holding cup are provided with locking grooves that engage with the locking block.

[0008] Preferably, the lifting mechanism includes a servo motor fixedly connected to the center of the bottom end inside the fixed base, a threaded rod installed on the output shaft end of the servo motor, a threaded block threadedly connected to one side of the threaded rod, and a connecting block fixedly connected to the front end of the threaded block and the front end of the threaded block being fixedly connected to the rotational viscometer.

[0009] Preferably, the pressing mechanism includes positioning grooves opened opposite to each other on the bottom ends of the left and right sides of the rotational viscometer. Fixed arms are provided at the bottom ends of the left and right sides of the rotational viscometer. The fixed arms are inverted L-shaped. A positioning block that engages with the positioning groove is fixedly connected to the inner side of the fixed arm. A sliding rod is fixedly connected to the bottom end inside the fixed arm. A slider is slidably connected to the outside of the sliding rod. A second spring is fixedly connected to the top end of the slider.

[0010] Preferably, the inner sides of the two sliders are fixedly connected to connecting rods that slide on the left and right sides inside the pressing plate, the inner sides of the connecting rods are fixedly connected to limiting blocks that slide inside the pressing plate, and one side of the limiting block is fixedly connected to a third spring.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This solder paste mixing uniformity monitor has slots at the bottom of both sides of the container. When the container is inserted into the slot, the blocks on both sides of the slot can be engaged in the slots on the container, thus stabilizing the container in the worktable. After the solder paste uniformity in the container is monitored, the motor in the worktable is started to drive the first gear to rotate. At this time, the first gear can push the second gear on the rotating rod and make the rotating rod rotate. At the same time, the winding shafts on both sides of the rotating rod can pull the movable block through the pull rope, and the movable block will pull the block out of the slot on the container. Then the rotating rod drives the actuating block to rotate, which can push the bottom of the container to lift and complete the rapid discharge of the solder paste after monitoring. This effectively improves the stability and convenience of the monitor.

[0013] 2. This solder paste mixing uniformity monitoring instrument has positioning grooves at the bottom of both sides of the rotational viscometer. When the positioning blocks on the two sets of fixed arms are inserted into the positioning grooves on the rotational viscometer, the pressing plate can be installed at the bottom of the rotational viscometer. At this time, the pressing plate can move up and down with the rotational viscometer. When the lifting mechanism drives the rotating blade at the bottom of the rotational viscometer to move downward and insert into the container, the lower surface of the pressing plate can contact the upper surface of the container. At this time, the pressing plate can drive the slider to slide on the slide rod through the connecting rod and squeeze the second spring above. Due to the reaction force of the second spring being squeezed, the pressing plate on one side of the connecting rod can be pushed by the slider to stick tightly to the upper surface of the container, which effectively protects the solder paste during monitoring and prevents the solder paste from being thrown out from the top of the container during the mixing process. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0017] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B;

[0018] Figure 5 This utility model Figure 2 Enlarged structural diagram at point C;

[0019] Figure 6 This is a cross-sectional view of the insertion slot of this utility model.

[0020] In the diagram: 1. Workbench; 101. Insertion slot; 102. Movable slot; 103. Rotating shaft; 104. Fixed base; 2. Container cup; 201. Slot; 3. Limiting and lifting mechanism; 301. Motor; 302. First gear; 303. Rotating rod; 304. Second gear; 305. Actuating block; 306. Rewinding shaft; 307. Pull rope; 308. Movable block; 309. Slotting block; 310. First spring; 4. Lifting mechanism; 401. Servo motor; 402. Threaded rod; 403. Threaded block; 404. Connecting block; 5. Rotary viscometer; 501. Positioning slot; 6. Pressing mechanism; 601. Fixed arm; 602. Positioning block; 603. Slide rod; 604. Slider; 605. Second spring; 7. Connecting rod; 701. Limiting block; 702. Third spring; 8. Pressing plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-6 This utility model provides two technical solutions:

[0023] Example 1: A solder paste mixing uniformity monitoring instrument includes a workbench 1. A slot 101 is provided at the center of the upper surface of the workbench 1, and a container 2 is inserted inside the slot 101. It also includes a limiting and lifting mechanism 3, which is used to limit the container 2 and lift it after monitoring. A fixed base 104 is fixedly connected to the center of the rear end of the upper surface of the workbench 1. A lifting mechanism 4 is provided inside the fixed base 104. A rotational viscometer 5 is provided at the front end of the lifting mechanism 4. Pressing mechanisms 6 are provided on both sides of the rotational viscometer 5. A pressing plate 8 is provided in the middle of the lower surface of the two pressing mechanisms 6. The rotational viscometer 5 is an LVDV-E rotational viscometer. The rotational viscometer 5 drives the bottom rotating probe to rotate and measure the viscosity change of the solder paste. The rotating probe at the bottom of the rotational viscometer 5 is replaceable, thus not affecting the disassembly of the pressing plate 8. The specific installation method, circuit connection method, and control method of the rotational viscometer 5 are all conventional designs and will not be described in detail here.

[0024] The limiting lifting mechanism 3 includes a motor 301 fixedly connected to the bottom of the worktable 1. A first gear 302 is installed on the output shaft of the motor 301. A rotating rod 303 is rotatably connected to the center of the worktable 1. A second gear 304 that meshes with the first gear 302 is fixedly connected to the left side of the rotating rod 303. A toggle block 305 is fixedly connected to the center of the rotating rod 303. When the motor 301 is started, it can drive the first gear 302 to rotate. At this time, the first gear 302 pushes the second gear 304 on the rotating rod 303 to make the rotating rod 303 rotate. Then the rotating rod 303 can drive the winding shafts 306 on the left and right sides and the toggle block 305 in the middle to rotate.

[0025] A winding shaft 306, which rotates within the worktable 1, is fixedly connected to the left and right sides of the rotating rod 303. A pull rope 307 is fixedly connected to one side of the outer side of the winding shaft 306. Movable grooves 102 are opened on the left and right sides inside the worktable 1. A rotating shaft 103 is rotatably connected to the outer side of the movable groove 102. A movable block 308, fixedly connected to the pull rope 307 on its outer side, is slidably connected inside the movable groove 102. A locking block 309 is fixedly connected to the inner side of the movable block 308. A first spring 310 is fixedly connected to the outer side of the movable block 308. Locking slots 201, which engage with locking blocks 309, are opened on the bottom ends of the left and right sides of the holding cup 2. When the cup 2 is subjected to a downward force, the first spring 310 can be squeezed by the movable block 308. At this time, the locking block 309 can be retracted into the movable slot 102. When the cup 2 is inserted into the insertion slot 101, the locking blocks 309 on the left and right sides of the insertion slot 101 can be inserted into the slots 201 on the cup 2 to complete the stable positioning of the cup 2. When the winding shaft 306 rotates and drives the pull rope 307 to wind up, the second gear 304 can pull the locking block 309 to move through the movable block 308. At this time, the locking block 309 is pulled out from the slots 201 on the cup 2, and the positioning of the cup 2 can be canceled.

[0026] The lifting mechanism 4 includes a servo motor 401 fixedly connected to the center of the bottom end inside the fixed base 104. A threaded rod 402 is installed on the output shaft end of the servo motor 401. A threaded block 403 is threadedly connected to one side of the threaded rod 402. A connecting block 404, which is fixedly connected to the front end of the threaded block 403, is fixedly connected to the front end of the rotational viscometer 5. When the servo motor 401 is started, it can drive the threaded rod 402 to rotate. At this time, the threaded block 403 on the threaded rod 402 can drive the rotational viscometer 5 to move up and down through the connecting block 404.

[0027] Example 2 differs from Example 1 mainly in that:

[0028] A solder paste mixing uniformity monitoring device includes a pressing mechanism 6 comprising positioning grooves 501 on the left and right sides of a rotational viscometer 5 with opposite bottom ends. Fixed arms 601, in an inverted L-shape, are provided at the bottom ends of the left and right sides of the rotational viscometer 5. Positioning blocks 602, which engage with the positioning grooves 501, are fixedly connected to the inner side of the fixed arms 601. A sliding rod 603 is fixedly connected to the bottom end of the inner side of the fixed arms 601. A slider 604 is slidably connected to the outside of the sliding rod 603. A second spring 605 is fixedly connected to the top end of the slider 604. When the lower surface of the pressing plate 8 contacts the upper surface of the container 2, the pressing plate 8 can drive the slider 604 to slide on the sliding rod 603 via a connecting rod 7. At this time, the slider 604 can compress the second spring 605 above, and due to the reaction force of the compressed second spring 605, the slider 604 can push the connecting rod 7 downwards, thereby causing the lower surface of the pressing plate 8 at the bottom end of the connecting rod 7 to adhere tightly to the upper surface of the container 2.

[0029] Two sliders 604 are fixedly connected to the inner sides of a connecting rod 7 that slides on the left and right sides inside the pressing plate 8. A limiting block 701 that slides inside the pressing plate 8 is fixedly connected to the inner side of the connecting rod 7. A third spring 702 is fixedly connected to one side of the limiting block 701. By pulling the fixed arm 601 on the two sets of pressing mechanisms 6 outward, the slider 604 can drive the limiting block 701 to slide inside the pressing plate 8 through the connecting rod 7. At this time, the fixed arm 601 can drive the positioning block 602 to be pulled out from the positioning groove 501 on the rotational viscometer 5. After the rotating probe at the bottom of the rotational viscometer 5 is disassembled, the pressing mechanism 6 can be removed from the rotational viscometer 5 as a whole. At the same time, all contents not described in detail in this specification are prior art known to those skilled in the art.

[0030] In this embodiment, during use: the container 2 containing solder paste is inserted into the insertion slot 101 at the top of the workbench 1. At this time, the locking blocks 309 on both sides inside the insertion slot 101 can be engaged into the locking slots 201 on the container 2, thus fixing the position of the container 2. At this time, the servo motor 401 inside the fixing base 104 is started, which drives the threaded rod 402 to rotate. The threaded block 403 on the threaded rod 402 can drive the rotational viscometer 5 to move downward through the connecting block 404. At this time, the rotating probe at the bottom of the rotational viscometer 5 can be inserted into the interior of the container 2. At the same time, the pressing mechanism 6 at the bottom presses... The tray 8 can be placed on top of the container 2. At this time, the rotational viscometer 5 can be activated to stir the solder paste inside the container 2. During the stirring process, the viscosity or rheological properties of the solder paste will change with the uniformity of stirring. If the stirring is not uniform, the components inside the solder paste will be unevenly distributed, which may cause viscosity fluctuations. The rotational viscometer 5 measures the flow resistance of the solder paste through the rotational probe to obtain viscosity data. The data processing module analyzes the viscosity or rheological data collected in real time. If the viscosity value of the solder paste fluctuates greatly, it indicates that the stirring is not uniform and there may be some areas where the solder paste concentration is too high or too low.

[0031] 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 preferred examples and are not intended to limit the 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A solder paste mixing uniformity monitoring instrument, comprising a worktable (1), characterized in that: The workbench (1) has an insertion slot (101) at the center of its upper surface. A cup (2) is inserted into the insertion slot (101). The workbench (101) also includes a limiting lifting mechanism (3). The limiting lifting mechanism (3) is used to limit the cup (2) and lift it after monitoring. A fixed seat (104) is fixedly connected to the center of the rear end of the upper surface of the workbench (1). A lifting mechanism (4) is provided inside the fixed seat (104). A rotational viscometer (5) is provided at the front end of the lifting mechanism (4). Pressing mechanisms (6) are provided on both sides of the rotational viscometer (5). A pressing plate (8) is provided in the middle of the lower surface of the two pressing mechanisms (6).

2. The solder paste mixing uniformity monitoring instrument according to claim 1, characterized in that: The limiting lifting mechanism (3) includes a motor (301) fixedly connected to the bottom of the workbench (1). A first gear (302) is installed on the output shaft end of the motor (301). A rotating rod (303) is rotatably connected to the center position inside the workbench (1). A second gear (304) that meshes with the first gear (302) is fixedly connected to the left side of the rotating rod (303). A toggle block (305) is fixedly connected to the center position of the rotating rod (303).

3. The solder paste mixing uniformity monitoring instrument according to claim 2, characterized in that: The left and right sides of the rotating rod (303) are fixedly connected to a winding shaft (306) that rotates inside the workbench (1). A pull rope (307) is fixedly connected to one side of the outside of the winding shaft (306). The left and right sides of the inside of the workbench (1) are provided with movable grooves (102). The outer side of the inside of the movable groove (102) is rotatably connected to the rotating shaft (103). The inside of the movable groove (102) is slidably connected to a movable block (308) that is fixedly connected to the pull rope (307) on the outside. A locking block (309) is fixedly connected to the inner side of the movable block (308). A first spring (310) is fixedly connected to the outer side of the movable block (308). The bottom ends of the left and right sides of the holding cup (2) are provided with locking grooves (201) that engage with the locking block (309).

4. The solder paste mixing uniformity monitoring instrument according to claim 1, characterized in that: The lifting mechanism (4) includes a servo motor (401) fixedly connected to the center of the bottom end inside the fixed base (104). A threaded rod (402) is installed on the output shaft end of the servo motor (401). A threaded block (403) is threadedly connected to one side of the threaded rod (402). A connecting block (404) whose front end is fixedly connected to the rotational viscometer (5) is fixedly connected to the front end of the threaded block (403).

5. The solder paste mixing uniformity monitoring instrument according to claim 1, characterized in that: The pressing mechanism (6) includes positioning grooves (501) that are opened opposite to each other on the bottom of the left and right sides of the rotational viscometer (5). Fixed arms (601) are provided on the bottom of the left and right sides of the rotational viscometer (5). The fixed arms (601) are in the shape of an inverted L. A positioning block (602) that is inserted into the positioning groove (501) is fixedly connected to the inner side of the fixed arm (601). A slide rod (603) is fixedly connected to the bottom inside the fixed arm (601). A slider (604) is slidably connected to the outside of the slide rod (603). A second spring (605) is fixedly connected to the top of the slider (604).

6. The solder paste mixing uniformity monitoring instrument according to claim 5, characterized in that: The inner sides of the two sliders (604) are fixedly connected to connecting rods (7) that slide on the left and right sides inside the pressing plate (8). The inner sides of the connecting rods (7) are fixedly connected to limiting blocks (701) that slide inside the pressing plate (8). A third spring (702) is fixedly connected to one side of the limiting block (701).

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