Automatic glue coating device for gear pump valve seat

Abstract

A gear pump valve seat automatic glue coating device, including frame, frame is equipped with fixedly containing vertical cylinder of thread glue, the lower end of vertical cylinder is communicated and installs glue thin tube, frame is fixedly installed drive motor, the output shaft of drive motor is fixedly installed telescopic shaft, the movable end of telescopic shaft is fixedly installed outer thread cylinder, outer thread cylinder is fixedly installed chuck, chuck is used for jointing and installing valve seat, the side surface of outer thread cylinder is equipped with limiting block, the thread groove that is engaged with the outer thread of outer thread cylinder is opened to limiting block, limiting block is installed on the frame. The utility model discloses simple structure, clever idea passes through drive motor and drives outer thread cylinder rotation and axial movement, makes valve seat synchronous rotation and feed, ensures that glue solution is evenly coated on the surface of thread, effectively avoids the phenomenon of missing coating or accumulation, and the uniformity of glue coating is high, and glue solution is less waste, and the sealing reliability is significantly improved.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical automation equipment, specifically an automatic glue-applying device for gear pump valve seats. Background Technology

[0002] The valve body and valve housing of a gear pump are typically connected by threads. To ensure the sealing and anti-loosening performance of the connection, threadlocker needs to be applied to the threaded area of ​​the valve seat. Currently, this application process is generally manual: the operator holds the valve seat in one hand and rotates it while applying the adhesive with the other. This method has significant drawbacks: firstly, it is difficult to guarantee the uniformity of the adhesive application, easily resulting in localized missed areas or adhesive accumulation, affecting the sealing effect; secondly, adhesive waste is serious, not only increasing production costs but also potentially polluting the working environment; and thirdly, manual operation is inefficient, and the valve seat is prone to slipping during rotation, causing product damage or personnel safety hazards. Therefore, there is an urgent need for a dedicated device that can automatically position, rotate, and uniformly apply adhesive to the valve seat to improve the adhesive application quality, save adhesive, increase production efficiency, and ensure operational safety. Utility Model Content

[0003] This utility model provides an automatic glue-applying device for gear pump valve seats to overcome the deficiencies in the prior art.

[0004] This utility model is achieved through the following technical solution: An automatic adhesive applicator for a gear pump valve seat includes a frame, a vertical cylinder for holding threadlocker adhesive fixed on the frame, a dispensing tube connected to the lower end of the vertical cylinder, a drive motor fixed on the frame, a telescopic shaft fixed on the output shaft of the drive motor, an external threaded cylinder fixed on the movable end of the telescopic shaft, a fixed chuck fixed on the external threaded cylinder for engaging the valve seat, a limiting block on the side of the external threaded cylinder, a threaded groove on the limiting block that engages with the external thread of the external threaded cylinder, and the limiting block is mounted on the frame.

[0005] As described above, in an automatic gluing device for a gear pump valve seat, a sealing cover is threadedly installed at the upper end of the vertical cylinder. An exhaust hole is provided on the sealing cover, and a sealing plate is movably provided on the exhaust hole. The sealing plate is rotatably mounted on the sealing cover via a hinge shaft. When the sealing plate rotates along the hinge shaft, a lever is provided on the side of the sealing plate.

[0006] As described above, in an automatic gluing device for a gear pump valve seat, a mounting slot is provided on the fixed chuck, one end of the valve seat can be inserted into the mounting slot, and several blind holes are evenly provided on the inner circumference of the mounting slot, with at least three blind holes. Several retaining beads are slidably arranged in the blind holes, and the retaining beads are connected to the blind holes by compression springs.

[0007] As described above, in an automatic gluing device for a gear pump valve seat, the limiting block is movably mounted on a frame, a slip ring is fixedly mounted on the frame via a support rod, an insert rod is slidably mounted inside the slip ring, the limiting block is fixed on the insert rod, and the limiting block and the slip ring are connected by a spring.

[0008] As described above, in an automatic gluing device for a gear pump valve seat, a shaft seat is rotatably mounted on the outer circumference of the fixed end of the telescopic shaft, and the shaft seat is fixed on the frame.

[0009] As described above, an automatic glue-applying device for a gear pump valve seat is provided with a controller and a motor forward control button and a motor reverse control button fixed on the frame. The drive motor is electrically connected to the output terminal of the controller, and the motor forward control button and the motor reverse control button are electrically connected to the input terminal of the controller, respectively.

[0010] The advantages of this utility model are: the utility model has a simple structure and ingenious design. By driving the external threaded cylinder to rotate and move axially through the drive motor, the valve seat rotates and feeds synchronously, ensuring that the adhesive is evenly coated on the thread surface, effectively avoiding missed coating or accumulation, with high uniformity of adhesive coating, less adhesive waste, and significantly improved sealing reliability. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Enlarged view of section I; Figure 3 yes Figure 1 Enlarged view of section II; Figure 4 yes Figure 1 Enlarged view of section III; Figure 5 This is a schematic diagram of the valve seat structure.

[0013] Reference numerals: 1. Frame; 2. Vertical cylinder; 3. Dispensing tube; 4. Drive motor; 5. Telescopic shaft; 6. External threaded cylinder; 7. Fixed chuck; 8. Valve seat; 9. Limit block; 20. Sealing cover; 21. Vent hole; 22. Sealing plate; 23. Lever; 30. Mounting slot; 31. Blind hole; 32. Clamping ball; 33. Compression spring; 40. Slip ring; 41. Insert rod; 42. Spring; 50. Shaft seat; 60. Controller; 61. Motor forward control button; 62. Motor reverse control button. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] An automatic adhesive applicator for a gear pump valve seat, such as Figure 1 , 2As shown in Figures 3, 4, and 5, the device includes a frame 1. A vertical cylinder 2 for holding threadlocker adhesive is fixedly mounted on the frame 1. The lower end of the vertical cylinder 2 is connected to a dispensing tube 3. A drive motor 4 is fixedly mounted on the frame 1. A telescopic shaft 5 is fixedly mounted on the output shaft of the drive motor 4. An external threaded cylinder 6 is fixedly mounted on the movable end of the telescopic shaft 5. A fixed chuck 7 is fixedly mounted on the external threaded cylinder 6. The drive motor 4, telescopic shaft 5, external threaded cylinder 6, and fixed chuck 7 are coaxially arranged. The fixed chuck 7 is used to engage and install a valve seat 8. The thread of the external threaded cylinder 6 is the same as the thread on the valve seat 8 that needs to be coated with threadlocker adhesive, thereby ensuring that the rotational and left-right movement speed of the external threaded cylinder 6 is the same as the rotational speed and left-right movement speed required for the valve seat 8 to apply threadlocker adhesive. A limiting block 9 is provided on the side of the external threaded cylinder 6. A threaded groove that engages with the external thread of the external threaded cylinder 6 is opened on the limiting block 9. The limiting block 9 is mounted on the frame 1. This utility model has a simple structure and ingenious design. The drive motor 4 rotates and moves the external threaded cylinder 6 axially, causing the valve seat 8 to rotate and feed synchronously. This ensures that the adhesive is evenly coated on the threaded surface, effectively preventing missed areas or accumulation. The coating uniformity is high, adhesive waste is minimal, and sealing reliability is significantly improved. When using this utility model, first pour the thread-locking adhesive into the vertical cylinder 2. Under its own gravity, the adhesive slowly and evenly flows out from the dispensing tube 3, forming a threaded adhesive strip. Blocking the lower end of the dispensing tube 3 stops the adhesive flow. Install the valve seat 8, which needs to be coated, on the fixed chuck 7. The valve seat 8 is coaxial with the fixed chuck 7, and the thread of the valve seat 8 is directly below the dispensing tube 3. Powering the drive motor 4 causes its output shaft to drive the telescopic shaft 5, the external threaded cylinder 6, the fixed chuck 7, and the valve seat 8 to rotate. Simultaneously, the external threaded cylinder 6 rotates. The threaded groove of the limiting block 9 engages with the threaded groove. While the external threaded cylinder 6 rotates, it moves to the left or right, and the telescopic shaft 5 is stretched or compressed. At the same time, the fixed chuck 7 and valve seat 8 rotate and move to the left or right. At this time, the seal of the glue dispensing tube 3 is released, and the thread glue falls into the thread of the valve seat 8, performing forward spiral glue application. Gradually filling the thread of the valve seat 8, the glue application is completed. After removing the valve seat 8, a new valve seat 8 is installed, and the drive motor 4 is rotated in the opposite direction to perform reverse spiral glue application. There is no need to reset the fixed chuck 7, making it convenient to use and operate.

[0016] Specifically, as shown in the figure, the upper end of the vertical cylinder 2 in this embodiment is threadedly fitted with a sealing cover 20. The sealing cover 20 has an exhaust hole 21, and a sealing plate 22 is movably mounted on the exhaust hole 21. The sealing plate 22 is rotatably mounted on the sealing cover 20 via a hinge shaft. When the sealing plate 22 rotates along the hinge shaft, the bottom side of the sealing plate 22 and the top side of the sealing cover 20 are in tight sliding contact, and the sealing plate 22 can seal the exhaust hole 21. A lever 23 is provided on the side of the sealing plate 22. By rotating the sealing plate 22 along the hinge axis using the lever 23, the sealing plate 22 is moved away from above the vent 21, opening the vent 21. Under atmospheric pressure, the thread-locking adhesive flows smoothly out of the dispensing capillary 3. Conversely, the sealing plate 22 blocks the vent 21, preventing the thread-locking adhesive from continuing to flow out of the dispensing capillary 3, thus controlling the flow of the thread-locking adhesive out of the dispensing capillary 3. The upper part of the vertical cylinder 2 is equipped with an openable and closable vent 21 structure, which can accurately start and stop the thread-locking adhesive by controlling atmospheric pressure, reducing unnecessary outflow, and lowering adhesive consumption and production costs.

[0017] Specifically, as shown in the figure, the fixed chuck 7 in this embodiment has an installation groove 30. The installation groove 30 is coaxially arranged with the fixed chuck 7. One end of the valve seat 8 can be inserted into the installation groove 30. The inner circumference of the installation groove 30 and the outer circumference of the valve seat 8 are clearance-fitted, with a gap of no more than one millimeter, to reduce the shaking of the valve seat 8 in the installation groove 30. Several blind holes 31 are evenly opened on the inner circumference of the installation groove 30. There are at least three blind holes 31. In this embodiment, there are six blind holes 31. The blind holes 31 are evenly distributed circumferentially along the axis of the installation groove 30, so that the valve seat 8 and the fixed chuck 7 are coaxial. Several retaining beads 32 are slidably arranged in the blind holes 31. The retaining beads 32 can only slide along the axial direction of the blind holes 31. The retaining beads 32 and the blind holes 31 are connected by a compression spring 33. Under the action of the compression spring 33, the part of the retaining beads 32 that extends out of the blind holes 31 is less than half of the retaining beads 32, and the retaining beads 32 can be completely pressed into the blind holes 31. When the valve seat 8 is inserted into the mounting slot 30, the valve seat 8 pushes the retaining ball 32 into the blind hole 31, and the compression spring 33 is compressed until the left end of the valve seat 8 contacts and engages with the left side wall of the mounting slot 30. Under the elastic thrust of the compression spring 33, the retaining ball 32 clamps and fixes the valve seat 8, completing the quick installation of the valve seat 8 onto the fixed chuck 7. The operation is safe and convenient: the fixed chuck 7 and the retaining ball 32 elastic clamping structure can realize the quick clamping and centering of the valve seat 8, avoiding the risk of slippage caused by manual holding, and improving the safety of operation and clamping efficiency.

[0018] Furthermore, as shown in the figure, the limiting block 9 described in this embodiment is movably mounted on the frame 1. A slip ring 40 is fixedly mounted on the frame 1 via a support rod. An insert rod 41 is slidably mounted inside the slip ring 40. The insert rod 41 can only slide up and down within the slip ring 40. The limiting block 9 is fixed to the insert rod 41. The limiting block 9 and the slip ring 40 are connected by a spring 42. The spring 42 is fitted around the outer circumference of the insert rod 41. One end of the spring 42 is fixedly connected to the limiting block 9, and the other end is fixedly connected to the slip ring 40. Pulling the upper end of the insert rod 41 upward causes the limiting block 9 to move upward. The spring 42 is compressed and stores energy, and the threaded groove of the limiting block 9 separates from the external thread of the external threaded cylinder 6. At this time, the external threaded cylinder 6 can move left and right, facilitating the rapid left and right movement of the fixed chuck 7 and enabling rapid left and right adjustment of the fixed chuck 7. This achieves flexible control and rapid reset of the adhesive application process, enhancing the applicability of the equipment.

[0019] Furthermore, as shown in the figure, in this embodiment, a rotatable mounting seat 50 is installed on the outer periphery of the fixed end of the telescopic shaft 5, and the mounting seat 50 is fixed on the frame 1. The mounting seat 50 can increase the stability of the telescopic shaft 5.

[0020] Furthermore, as shown in the figure, the frame 1 in this embodiment is fixedly equipped with a controller 60, a motor forward control button 61, and a motor reverse control button 62. The drive motor 4 is electrically connected to the output terminal of the controller 60, and the motor forward control button 61 and the motor reverse control button 62 are respectively electrically connected to the input terminal of the controller 60. When the controller 60 is powered on, pressing the motor forward control button 61 and the motor reverse control button 62 controls the forward and reverse rotation of the drive motor 4. The movement direction and rhythm of the drive motor 4 can be precisely controlled, realizing semi-automatic or automatic operation of the glue application process, reducing manual labor and improving production efficiency.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic glue applicator for a gear pump valve seat, comprising a frame (1), a vertical cylinder (2) for holding threadlocker glue fixedly mounted on the frame (1), a glue dispensing tube (3) connected to the lower end of the vertical cylinder (2), and a drive motor (4) fixedly mounted on the frame (1), characterized in that: The output shaft of the drive motor (4) is fixedly mounted with a telescopic shaft (5), the movable end of the telescopic shaft (5) is fixedly mounted with an external threaded cylinder (6), a fixed chuck (7) is fixedly mounted on the external threaded cylinder (6), the fixed chuck (7) is used to clamp the valve seat (8), a limit block (9) is provided on the side of the external threaded cylinder (6), a thread groove is opened on the limit block (9) to mesh with the external thread of the external threaded cylinder (6), and the limit block (9) is mounted on the frame (1).

2. The automatic glue-applying device for a gear pump valve seat according to claim 1, characterized in that: The upper end of the vertical cylinder (2) is threadedly fitted with a sealing cover (20). An exhaust hole (21) is opened on the sealing cover (20). A sealing plate (22) is movably provided on the exhaust hole (21). The sealing plate (22) is rotatably mounted on the sealing cover (20) through a hinge shaft. When the sealing plate (22) rotates along the hinge shaft, a lever (23) is provided on the side of the sealing plate (22).

3. The automatic glue-applying device for a gear pump valve seat according to claim 1, characterized in that: The fixed chuck (7) has an installation slot (30) and one end of the valve seat (8) can be inserted into the installation slot (30). Several blind holes (31) are evenly opened on the inner circumference of the installation slot (30). There are at least three blind holes (31). Several locking beads (32) are slidably arranged in the blind holes (31). The locking beads (32) are connected to the blind holes (31) by a compression spring (33).

4. The automatic glue-applying device for a gear pump valve seat according to claim 1, characterized in that: The limiting block (9) is movably installed on the frame (1). The slip ring (40) is fixedly installed on the frame (1) by a support rod. The insert rod (41) is slidably installed inside the slip ring (40). The limiting block (9) is fixed on the insert rod (41). The limiting block (9) and the slip ring (40) are connected by a spring (42).

5. The automatic glue-applying device for a gear pump valve seat according to claim 1, characterized in that: The outer circumference of the fixed end of the telescopic shaft (5) is rotated and mounted on the bearing seat (50), which is fixed on the frame (1).

6. The automatic glue-applying device for a gear pump valve seat according to claim 1, characterized in that: The frame (1) is fixedly equipped with a controller (60) and a motor forward control button (61) and a motor reverse control button (62). The drive motor (4) is electrically connected to the output end of the controller (60), and the motor forward control button (61) and the motor reverse control button (62) are electrically connected to the input end of the controller (60).

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