A glue injector capable of controlling glue injection amount

Abstract

The utility model discloses a glue injection device of controllable injection glue amount belongs to glue injection device technical field, including glue injection pipe, the glue injection pipe bottom end is connected with glue injection mouth, the glue injection pipe one side outer wall is connected with the feed pipe, glue outlet mechanism, glue outlet mechanism includes the moving block of setting in the glue injection pipe inside, the moving block is configured as the outer wall closely with glue injection pipe inner wall, flow control mechanism, flow control mechanism includes the baffle of setting in the feed pipe inside, a plurality of through -holes are established to the baffle outer wall, a plurality of the baffle one side sliding connection has a plurality of shielding rings, a plurality of shielding rings are configured as synchronous motion, in the utility model, through setting glue outlet mechanism, the glue in glue injection pipe inner wall's residual has reduced while preventing glue water drop, has reduced the error of glue injection, has improved the glue injection accuracy, through setting flow control mechanism, through the flow of glue water from feed pipe into glue injection pipe adjustment glue injection amount, has improved the convenience of device.

Description

Technical Field

[0001] This utility model belongs to the field of glue injector technology, and in particular relates to a glue injector with controllable glue injection volume. Background Technology

[0002] A glue applicator is a device used to precisely control the application of adhesive or sealant. Its structure mainly consists of a glue application system, a propulsion system, and fixing and sealing components. Glue applicators can accurately apply glue, controlling the amount even to tiny cracks, thus improving the sealing effect. When used for sealing leaks in wet conditions, glue applicators are significantly more efficient than traditional methods, making them suitable for high-efficiency construction. Furthermore, compared to piston-type glue suction designs, they reduce glue waste and support reuse. Glue applicators are widely used in fields such as construction engineering, automotive manufacturing, electronic packaging, and industrial maintenance.

[0003] After completing the dispensing operation, existing dispensing machines inevitably leave residual glue on the inner wall of the dispensing tube, resulting in material waste. Furthermore, the solidified residual glue can clog the dispensing tube, affecting the smoothness and accuracy of subsequent dispensing. At the end of the dispensing process, the glue often drips from the dispensing nozzle due to its own weight, contaminating the workbench or the product itself, impacting the cleanliness of the working environment and the product yield. Moreover, when facing different production needs and dispensing volume requirements, operators often need to adjust the flow rate by changing dispensing tubes of different specifications, which is cumbersome and increases production costs. Utility Model Content

[0004] The purpose of this invention is to solve the problems of residual glue dripping from the glue inlet on the inner wall of the glue inlet tube and the difficulty in adjusting the glue flow rate during glue injection, and to propose a glue injector with controllable glue injection volume.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a glue injector with controllable glue injection volume, comprising a glue injection tube, a glue injection port connected to the bottom end of the glue injection tube, a feed pipe connected to the outer wall of one side of the glue injection tube, a glue dispensing mechanism, the glue dispensing mechanism comprising a moving block disposed inside the glue dispensing tube, the moving block being configured such that its outer wall is tightly fitted against the inner wall of the glue injection tube, and when the moving block moves downward, it squeezes glue out of the glue injection tube, and a flow control mechanism, the flow control mechanism comprising a baffle disposed inside the feed pipe, the baffle having multiple through holes on its outer wall, and multiple blocking rings slidably connected to one side of the baffle, the multiple blocking rings being configured to move synchronously, and adjusting the glue flow rate entering the glue injection tube by blocking the through holes through the blocking rings.

[0006] Preferably, the bottom of the movable block is provided with multiple scrapers around the axis, the outside of the glue injection tube is provided with a movable ring, the top of the movable block is connected to a connecting shaft, one end of the connecting shaft is provided with a rotating seat, and multiple connecting rods are provided between the rotating seat and the connecting ring.

[0007] Preferably, the dispensing mechanism further includes a fixed tube disposed inside the dispensing port, a movable rod slidably connected to the inner wall of the fixed tube, a spring connected to one end of the movable rod, one end of the spring being connected to a corresponding position on the top of the inner wall of the fixed ring, and a sealing head connected to the other end of the movable rod.

[0008] Preferably, a plurality of limiting blocks are provided on one side of the baffle, and a telescopic rod is inserted inside the limiting block, with one end of the telescopic rod connected to the outer wall of one side of the shielding ring.

[0009] Preferably, a lead screw is rotatably connected to one side of the outer wall of the baffle, a movable plate is sleeved on the outer wall of the lead screw, a plurality of connecting seats are provided on one side of the outer wall of the movable plate, a stroke groove is provided on one side of the outer wall of the connecting seat, and one end of the telescopic rod is slidably connected to the stroke groove through a column.

[0010] Preferably, a motor is installed on one side of the baffle, the output end of the motor is connected to one end of the lead screw, a protective cover is fitted on the outer wall of the motor, and a protective shell is provided on one side of the baffle.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this utility model, by setting up a glue dispensing mechanism, the moving block moves downward to squeeze out the glue while the scraper shell scrapes along the inner wall of the glue dispensing tube, reducing the glue residue on the inner wall of the glue dispensing tube. At the same time, the sealing head can automatically seal the glue dispensing port after the glue dispensing is completed to prevent glue from dripping, ensuring the accuracy of glue dispensing and avoiding environmental pollution.

[0012] 2. In this utility model, by setting a flow control mechanism, the expansion range of the shielding ring can be dynamically adjusted according to actual needs, thereby changing the passable area of ​​the through hole. This allows the flow rate of glue from the feed pipe into the dispensing pipe to be dynamically adjusted. When facing different dispensing volume requirements, there is no need to change the equipment, which improves the ease of use and convenience of the device. Attached Figure Description

[0013] Figure 1 A schematic diagram of the main structure of a glue dispenser with controllable glue volume proposed in this utility model; Figure 2 This is a schematic diagram showing the disassembled structure of a glue dispenser with controllable glue volume proposed in this utility model. Figure 3 This is a half-sectional view of the dispensing mechanism of a glue dispenser with controllable glue volume proposed in this utility model. Figure 4 This utility model Figure 3 A schematic diagram of the structure of part A; Figure 5 This is a partial cross-sectional schematic diagram of the flow control mechanism of a glue dispenser with controllable glue volume proposed in this utility model. Figure 6 This is a half-sectional view of another angle of the flow control mechanism of the glue dispenser that can control the amount of glue dispensed according to this utility model.

[0014] Legend: 1. Injection tube; 2. Injection port; 3. Feed pipe; 4. Discharge mechanism; 401. Moving block; 402. Scraper; 403. Moving ring; 404. Connecting shaft; 405. Rotating seat; 406. Connecting rod; 407. Fixed tube; 408. Sealing head; 409. Moving rod; 410. Spring; 5. Flow control mechanism; 501. Baffle; 502. Through hole; 503. Limiting block; 504. Telescopic rod; 505. Shielding ring; 506. Moving plate; 507. Connecting seat; 508. Stroke groove; 509. Lead screw; 510. Motor; 511. Protective cover; 512. Protective shell. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-6 This utility model provides a technical solution: a glue injector with controllable glue injection volume, including a glue injection tube 1, a glue injection port 2 connected to the bottom end of the glue injection tube 1, a feed tube 3 connected to the outer wall of one side of the glue injection tube 1, a glue dispensing mechanism 4, the glue dispensing mechanism 4 including a moving block 401 disposed inside the glue dispensing tube, the moving block 401 being configured such that its outer wall is tightly fitted to the inner wall of the glue injection tube 1, and when the moving block 401 moves downward, it squeezes glue out of the glue injection tube 1, and a flow control mechanism 5, the flow control mechanism 5 including a baffle 501 disposed inside the feed tube 3, the outer wall of the baffle 501 having multiple through holes 502, and multiple blocking rings 505 slidably connected to one side of the baffle 501, the multiple blocking rings 505 being configured to move synchronously, and adjusting the glue flow rate entering the glue injection tube 1 by blocking the through holes 502 through the blocking rings 505.

[0017] Multiple scrapers 402 are arranged around the bottom of the movable block 401 along the axis. A movable ring 403 is arranged outside the glue injection tube 1. A connecting shaft 404 is connected to the top of the movable block 401. A rotating seat 405 is provided at one end of the connecting shaft 404. Multiple connecting rods 406 are arranged between the rotating seat 405 and the connecting ring.

[0018] The dispensing mechanism 4 also includes a fixed tube 407 disposed in the dispensing port 2. A movable rod 409 is slidably connected to the inner wall of the fixed tube 407. A spring 410 is connected to one end of the movable rod 409. One end of the spring 410 is connected to the corresponding position at the top of the inner wall of the fixed ring. A closing head 408 is connected to the other end of the movable rod 409.

[0019] The rotating seat 405 rotates, and the rotating seat 405 drives the moving ring 403 to rotate via the connecting rod 406. The internal thread of the moving ring 403 meshes with the external thread of the outer wall of the glue injection tube 1, allowing the moving ring 403 to move along the tube body of the glue injection tube 1. The rotating seat 405 drives the moving block 401 to rotate via the connecting shaft 404. Multiple scrapers 402 arranged around the outer wall of the moving block 401 along the axis rotate synchronously with the moving block 401. One side of the outer wall of the scraper 402 is tightly attached to the inner wall of the glue injection tube 1. The outer wall of the scraper 402 is arc-shaped, and the friction generated when the scraper 402 rotates... The force scrapes off the residual glue on the inner wall of the glue injection tube 1. The moving block 401 moves downward synchronously with the moving ring 403 along the tube body of the glue injection tube 1, squeezing the glue in the glue injection tube 1 towards the glue injection port 2. The glue pushes the sealing head 408 to separate the sealing head 408 from the glue injection port 2. The spring 410 is stretched, the glue injection port 2 opens, and the glue leaves the glue injection tube 1 from the glue injection port 2. After the glue injection is completed, the spring 410 pulls the sealing head 408 back to its original position through its elasticity, and seals the glue injection port 2 again to prevent the glue from dripping from the glue injection port 2, thus preventing the dripping glue from affecting the glue injection accuracy and polluting the environment.

[0020] Multiple limiting blocks 503 are provided on one side of the baffle 501. A telescopic rod 504 is inserted inside the limiting block 503. One end of the telescopic rod 504 is connected to the outer wall of one side of the shielding ring 505.

[0021] A lead screw 509 is rotatably connected to one side of the outer wall of the baffle 501. A movable plate 506 is sleeved on the outer wall of the lead screw 509. Multiple connecting seats 507 are provided on one side of the outer wall of the movable plate 506. A stroke groove 508 is opened on one side of the outer wall of the connecting seat 507. One end of the telescopic rod 504 is slidably connected to the stroke groove 508 through a column.

[0022] A motor 510 is installed on one side of the baffle 501. The output end of the motor 510 is connected to one end of the lead screw 509. A protective cover 511 is fitted on the outer wall of the motor 510. A protective shell 512 is provided on one side of the baffle 501.

[0023] Specifically, in the initial state, the column at one end of the telescopic rod 504 is located at the end of the stroke groove 508 away from the moving plate 506, the distance between the three blocking rings 505 is the smallest, the passable area of ​​the through hole 502 is the largest, the motor 510 drives the lead screw 509 to rotate through the output end, the external thread on the outer wall of the lead screw 509 meshes with the internal thread on the inner wall of the moving plate 506, causing the moving plate 506 to move closer to the baffle 501 along the direction of the lead screw 509, and the column at one end of the telescopic rod 504... The telescopic rod 504 slides from the end of the passageway away from the moving plate 506 to the end of the moving plate 506 closer to the moving plate 506. The end of the telescopic rod 504 extends outward through the limiting block 503. The telescopic rod 504 pushes the blocking ring 505 outward. The three telescopic rods 504 move synchronously, thereby pushing the three blocking rings 505 to move synchronously. The three blocking rings 505 move away from each other, reducing the passable area of ​​the through hole 502 on the outer wall of the baffle 501, reducing the flow rate of glue entering the glue injection tube 1, thereby changing the amount of glue injected.

[0024] It should be noted that the selection of motor 510 and control unit in the above description are selected as needed. This part is well-known technology in the field and will not be elaborated here.

[0025] Working principle: When in use, the operator starts the motor 510 and adjusts the passable area of ​​the through hole 502 according to actual needs to adjust the flow rate of the glue. Then, the operator injects the glue into the feed pipe 3. The operator suspends the glue dispenser vertically above the glue dispensing position. Then, the operator rotates the rotating seat 405 to perform the glue dispensing operation. During the glue dispensing, the operator can start the motor 510 to dynamically adjust the passable area of ​​the through hole 502 according to the actual working conditions to control the amount of glue dispensed.

[0026] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dispensing device with controllable dispensing volume, characterized in that, include: The glue injection tube (1) has a glue injection port (2) connected to its bottom end, and a feed tube (3) is connected to the outer wall of one side of the glue injection tube (1). The dispensing mechanism (4) includes a movable block (401) disposed inside the dispensing tube. The movable block (401) is configured such that its outer wall is in close contact with the inner wall of the dispensing tube (1). When the movable block (401) moves downward, it squeezes the glue out of the dispensing tube (1). The flow control mechanism (5) includes a baffle (501) disposed inside the feed pipe (3). The outer wall of the baffle (501) is provided with multiple through holes (502). Multiple blocking rings (505) are slidably connected to one side of the baffle (501). The multiple blocking rings (505) are configured to move synchronously. The flow rate of glue entering the glue injection pipe (1) is adjusted by blocking the through holes (502) through the blocking rings (505).

2. The dispensing device with controllable dispensing volume according to claim 1, characterized in that, The bottom of the movable block (401) is surrounded by multiple scrapers (402) along the axis. The outside of the glue injection tube (1) is provided with a movable ring (403). The top of the movable block (401) is connected to a connecting shaft (404). One end of the connecting shaft (404) is provided with a rotating seat (405). Multiple connecting rods (406) are provided between the rotating seat (405) and the connecting ring.

3. The dispensing device with controllable dispensing volume according to claim 1, characterized in that, The dispensing mechanism (4) further includes a fixed tube (407) disposed in the dispensing port (2). A movable rod (409) is slidably connected to the inner wall of the fixed tube (407). A spring (410) is connected to one end of the movable rod (409). One end of the spring (410) is connected to the corresponding position of the top of the inner wall of the fixed ring. A closed head (408) is connected to the other end of the movable rod (409).

4. The dispensing device with controllable dispensing volume according to claim 1, characterized in that, A plurality of limiting blocks (503) are provided on one side of the baffle (501), and a telescopic rod (504) is inserted inside the limiting block (503). One end of the telescopic rod (504) is connected to the outer wall of one side of the shielding ring (505).

5. A dispensing device with controllable dispensing volume according to claim 4, characterized in that, A lead screw (509) is rotatably connected to one side of the outer wall of the baffle (501). A movable plate (506) is sleeved on the outer wall of the lead screw (509). A plurality of connecting seats (507) are provided on one side of the outer wall of the movable plate (506). A stroke groove (508) is opened on one side of the outer wall of the connecting seat (507). One end of the telescopic rod (504) is slidably connected to the stroke groove (508) through a column.

6. A dispensing device with controllable dispensing volume according to claim 1, characterized in that, A motor (510) is installed on one side of the baffle (501). The output end of the motor (510) is connected to one end of the lead screw (509). A protective cover (511) is fitted on the outer wall of the motor (510). A protective shell (512) is provided on one side of the baffle (501).

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