A glue filling device of an automatic packaging machine

Abstract

The utility model discloses a kind of glue filling devices of automatic packaging machine, it is related to the technical field of automatic packaging equipment.The device includes rack, rack is provided with conveying belt, positioning mechanism, drive mechanism and glue filling mechanism, conveying belt realizes the stable conveying of workpiece, positioning mechanism realizes workpiece positioning by multiple groups of sensor and actuator cooperation, glue filling mechanism is equipped with flow control and multi-axis linkage drive mechanism, and the glue filling operation of complex path can be completed.The utility model realizes the automation conveying, accurate positioning and flexible glue filling of workpiece to be filled with glue by setting conveying belt, positioning mechanism, drive mechanism and glue filling mechanism, greatly improves glue filling efficiency and glue filling accuracy, reduces artificial cost.

Description

Technical Field

[0001] This utility model relates to the field of automated packaging equipment technology, specifically to a dispensing device for an automated packaging machine. Background Technology

[0002] In the production process of industries such as electronics and electrical appliances, it is often necessary to encapsulate some components. Glue filling is a crucial step in the encapsulation process, its purpose being to fix, seal, and protect the components by injecting glue. Traditional glue filling operations are mostly done manually, which is not only inefficient but also makes it difficult to guarantee the accuracy of glue filling and control the amount of glue used, easily leading to glue waste and unstable product quality. With the development of automation technology, some automated dispensing equipment has emerged. However, existing automated dispensing equipment suffers from insufficient precision in positioning the workpiece during the dispensing process, and poor stability in the movement of the dispensing head, resulting in unsatisfactory dispensing effects and failing to meet the demands of high-precision production. Furthermore, existing dispensing equipment also has shortcomings in areas such as adhesive mixing and flow control, affecting the quality of dispensing. Therefore, we propose a dispensing device for an automated packaging machine to address the aforementioned problems. Utility Model Content

[0003] The purpose of this invention is to provide a dispensing device for an automated packaging machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a dispensing device for an automated packaging machine, comprising a frame, on which a conveyor belt, a positioning mechanism, a driving mechanism, and a dispensing mechanism are mounted. The conveyor belt is located at the lower inner part of the frame. The positioning mechanism includes a positioning cylinder, a positioning plate, and a positioning sensor. The positioning cylinder is mounted on a mounting plate, which is fixed to the frame. The positioning plate is located on both sides of the conveyor belt. The positioning cylinder is connected to the positioning plate to drive the positioning plate closer to or further away from the conveyor belt. The positioning sensor is located on the positioning plate to detect the workpiece position. The dispensing mechanism includes a glue storage tank, a glue pump, and a dispensing head. The glue storage tank is connected to the glue pump via a pipe, and the glue pump is connected to the dispensing head via a flexible connecting pipe. The dispensing head, the driving mechanism includes a driving frame, a Y-axis, an X-axis, a sliding seat, and a servo cylinder. Two sets of screws are arranged symmetrically above and below the driving frame. These two symmetrically arranged screws are connected to a transmission rod via a transmission gear. The transmission rod is connected to the output end of a drive motor, which is mounted on the driving frame. A moving block is threaded onto each screw, and the Y-axis and X-axis are fixed to the moving block. The Y-axis and X-axis are located on different sets of screws above and below the driving frame. A sliding seat is connected through both the Y-axis and X-axis. A mounting base is installed on the sliding seat, and a servo cylinder is vertically mounted on the mounting base. A dispensing head is installed on the output end below the servo cylinder.

[0005] Preferably, the storage tank is equipped with a stirring assembly, a heating jacket, and a liquid level sensor. The stirring assembly includes a stirring motor, a coupling, and a stirring paddle. The stirring motor is located at the top center of the storage tank and is a speed-regulating motor. The stirring paddle extends into the storage tank through the coupling and is connected to the output shaft of the stirring motor. The heating jacket is wrapped around the outer wall of the storage tank. The liquid level sensor is a capacitive liquid level gauge and is located inside the storage tank.

[0006] Preferably, the dispensing head is equipped with a flow sensor and a control valve. The flow sensor is used to detect the dispensing flow rate, and the control valve is used to control the on / off state of the dispensing.

[0007] Preferably, the positioning plate is provided with a buffer pad, which is made of rubber and is attached to the inner side of the positioning plate with strong adhesive. The outer side of the buffer pad is provided with anti-slip texture.

[0008] Preferably, a guide rod is fixed on the positioning plate, the guide rod passes through the mounting plate, and the guide rod is slidably connected to the mounting plate.

[0009] Preferably, it also includes a control system, which adopts a PLC controller, model S7-1200, equipped with a 10.1-inch touch screen. It is connected to the conveyor motor of the conveyor belt, positioning cylinder, positioning sensor, glue pump, drive motor of the drive mechanism, stirring motor, heating jacket, liquid level sensor, flow sensor, and control valve through signal lines, which can realize fully automatic control and parameter setting of the equipment.

[0010] Compared with the prior art, the beneficial effects of this utility model are: (1) By setting up a conveyor belt, a positioning mechanism, a driving mechanism and a dispensing mechanism, this utility model realizes the automated conveying, precise positioning and flexible dispensing of the workpiece to be dispensed, which greatly improves the dispensing efficiency and dispensing accuracy and reduces labor costs. (2) The stirring component on the glue storage tank can adjust the stirring speed according to the glue characteristics. Combined with the temperature control of the heating jacket, it effectively solves the problems of glue sedimentation, solidification and uneven viscosity, ensuring the quality of the glue and thus improving the performance of the product after glue dispensing. (3) The flow sensor and control valve on the dispensing head can accurately control the amount of glue used, avoiding glue waste and ensuring that the amount of glue dispensed for each workpiece is consistent. (4) The buffer pad on the positioning plate avoids damage to the workpiece during positioning and improves the stability of positioning. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the positioning mechanism of this utility model; Figure 3 This is a schematic diagram of the drive mechanism structure of this utility model; Figure 4 This is a schematic diagram of the drive mechanism structure of this utility model; Figure 5 This is a schematic diagram of the glue-dispensing mechanism of this utility model.

[0012] In the diagram: 1. Frame; 2. Conveyor belt; 3. Positioning mechanism; 31. Mounting plate; 32. Positioning cylinder; 33. Guide rod; 34. Positioning plate; 4. Drive mechanism; 41. Drive frame; 42. Screw; 43. Moving block; 44. Y-axis; 45. Drive motor; 46. Transmission gear; 47. Transmission rod; 48. X-axis; 49. Sliding seat; 410. Mounting seat; 411. Servo electric cylinder; 5. Dispensing mechanism; 51. Dispensing tank; 52. Mixing motor; 53. Coupling; 54. Mixing paddle; 55. Dispensing pump; 56. Flexible connecting pipe; 57. Dispensing head. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1-5 This utility model provides a technical solution: a glue-filling device for an automated packaging machine, including a frame 1, on which a conveyor belt 2, a positioning mechanism 3, a driving mechanism 4 and a glue-filling mechanism 5 are arranged. The layout of each mechanism is reasonable and easy to operate and maintain. The conveyor belt 2 is located at the lower inner side of the frame 1.

[0015] Furthermore, the dispensing device also includes a control system, which uses a PLC controller, model S7-1200, equipped with a 10.1-inch touch screen. The control system is connected to the conveyor motor of the conveyor belt 2, the positioning cylinder 32, the positioning sensor, the glue pump 55, the drive motor 45 of the drive mechanism 4, the stirring motor 52, the heating jacket, the liquid level sensor, the flow sensor, and the control valve through signal lines, which can realize the fully automatic control and parameter setting of the equipment.

[0016] The positioning mechanism 3 includes a positioning cylinder 32, a positioning plate 34, and a positioning sensor. The positioning cylinder 32 is mounted on a mounting plate 31, which is fixed to the frame 1. The positioning plates 34 are located on both sides of the conveyor belt 2. The positioning cylinder 32 is connected to the positioning plate 34 to drive the positioning plate 34 closer to or further away from the conveyor belt 2. The positioning sensor is located on the positioning plate 34 to detect the workpiece position. The positioning sensor is a diffuse reflection photoelectric sensor with a fast response speed, which can quickly send a signal when the workpiece reaches the positioning position. When the workpiece to be glued is conveyed to the glue-filling station, the positioning sensor detects the edge of the workpiece and immediately sends a signal to the control system. The control system controls the conveyor motor to stop running and simultaneously controls the positioning cylinder 32 to move, driving the positioning plates 34 on both sides to move synchronously towards the center of the conveyor belt 2 until the workpiece is clamped. The positioning accuracy can reach ±0.1mm, ensuring that the workpiece will not be displaced during the glue-filling process.

[0017] Furthermore, a buffer pad is provided on the positioning plate 34. The buffer pad is made of rubber and is attached to the inner side of the positioning plate 34 with strong adhesive. The outer surface of the buffer pad has anti-slip texture. The rubber buffer pad has good elasticity and wear resistance. When the positioning plate 34 clamps the workpiece, it can absorb the impact force generated by the clamping force, preventing the workpiece surface from being scratched or deformed. It is especially suitable for workpieces with high surface quality requirements. The anti-slip texture can increase the friction between the positioning plate 34 and the workpiece, preventing the workpiece from sliding due to vibration or other reasons during the glue pouring process, thus improving the reliability of positioning.

[0018] Furthermore, a guide rod 33 is fixed on the positioning plate 34, the guide rod 33 passes through the mounting plate 31, and the guide rod 33 is slidably connected to the mounting plate 31. The cooperation between the guide rod 33 and the mounting plate 31 ensures the straightness of the movement of the positioning plate 34 and prevents the positioning plate 34 from shifting or tilting during the movement.

[0019] The glue dispensing mechanism 5 includes a glue storage tank 51, a glue pump 55, and a glue dispensing head 57. The glue storage tank 51 is connected to the glue pump 55 through a pipe, and the glue pump 55 is connected to the glue dispensing head 57 through a flexible connecting pipe 56.

[0020] Furthermore, the storage tank 51 is equipped with a stirring assembly, a heating jacket, and a liquid level sensor. The stirring assembly includes a stirring motor 52, a coupling 53, and a stirring paddle 54. The stirring motor 52 is located at the top center of the storage tank 51 and is a speed-regulating motor. The stirring paddle 54 extends into the storage tank 51 through the coupling 53 and is connected to the output shaft of the stirring motor 52. The heating jacket is wrapped around the outer wall of the storage tank 51. The liquid level sensor is a capacitive liquid level gauge and is located inside the storage tank 51. The stirring assembly thoroughly mixes the adhesive, and the speed-regulating motor adjusts the stirring speed according to the viscosity characteristics of the adhesive. For low-viscosity adhesives, low-speed stirring can be used to avoid air bubbles, while high-viscosity adhesives can be stirred at high speed to ensure uniformity. The heating jacket heats and keeps the adhesive warm, reducing its viscosity and improving its flowability, making it particularly suitable for use in low-temperature environments or in situations where specific adhesive viscosity requirements exist. The liquid level sensor monitors the adhesive level in the storage tank 51 in real time. When the liquid level is below the lower limit, it sends a signal to the control system, which then issues an alarm via the touchscreen to remind the operator to add adhesive in time. When the liquid level is above the upper limit, an alarm is also issued to prevent adhesive overflow.

[0021] Furthermore, the dispensing head 57 is equipped with a flow sensor and a control valve. The flow sensor detects the dispensing flow rate, and the control valve controls the on / off state of dispensing. The flow sensor can detect the instantaneous and cumulative flow rates of the adhesive in real time and feed the data back to the control system. The control system compares the preset dispensing volume with the actual flow rate and adjusts the flow rate by controlling the opening of the control valve to ensure that the actual dispensing volume matches the preset value. The flow control accuracy can reach ±1%.

[0022] The drive mechanism 4 includes a drive frame 41, a Y-axis 44, an X-axis 48, a sliding seat 49, and a servo electric cylinder 411. Two sets of screws 42 are arranged symmetrically within the drive frame 41. These two symmetrically arranged screws 42 are connected to a transmission rod 47 via a transmission gear 46. The transmission rod 47 is connected to the output end of a drive motor 45, which is mounted on the drive frame 41. A moving block 43 is threaded onto each screw 42. The Y-axis 44 and X-axis 48 are fixed to the moving block 43. The Y-axis 44 and X-axis 48 are located on different sets of screws 42 within the drive frame 41. A sliding seat 49 is connected through both the Y-axis 44 and X-axis 48. A mounting base 410 is mounted on the sliding seat 49. A servo electric cylinder 411 is vertically mounted on the mounting base 410. A dispensing head 57 is mounted on the output end below the servo electric cylinder 411.

[0023] Working principle: When the equipment is started, the stirring component on the glue storage tank 51 begins to work. The stirring motor 52 drives the stirring paddle 54 to stir the glue at the set speed. At the same time, the heating jacket heats and keeps the glue at the set temperature to ensure that the glue is in the optimal state. The liquid level sensor monitors the glue level in the glue storage tank 51 in real time. If the liquid level is lower than the lower limit, the touch screen will issue an alarm prompt, and the operator will add glue in time.

[0024] The workpiece to be glued is placed on conveyor belt 2 from the loading station, and moves with conveyor belt 2 towards the glue-filling station. When the workpiece is about to reach the glue-filling station, the positioning sensor on the positioning mechanism 3 detects the edge of the workpiece and immediately sends a signal to the control system. After receiving the signal, the control system controls the conveyor belt 2 to move, and the workpiece stops accurately at the glue-filling station. Next, the control system controls the positioning cylinder 32 to move, driving the positioning plates 34 on both sides to move synchronously towards the center of the conveyor belt 2 under the guidance of the guide rod 33 and the mounting plate 31. After the buffer pad on the inner side of the positioning plate 34 contacts the workpiece, it continues to move a short distance to clamp the workpiece. The anti-slip texture increases the friction between the positioning plate 34 and the workpiece, preventing the workpiece from sliding and achieving precise positioning of the workpiece with a positioning accuracy of ±0.1mm. After positioning is completed, the control system issues a dispensing command, the glue pump 55 starts, pressurizes the glue in the storage tank 51 and delivers it to the dispensing head 57 through the flexible connecting pipe 56. At the same time, the X-axis 48, Y-axis 44 and servo cylinder 411 of the drive mechanism 4 drive the dispensing head 57 to move according to the preset dispensing trajectory. For the movement of the dispensing head 57, the drive motor 45 is started to drive the transmission rod 47 to rotate. The transmission rod 47 drives the screw 42 through the transmission gear 46. The rotation of the screw 42 can make the moving block 43 move, thereby changing the position of the X-axis 48 and Y-axis 44, which in turn makes the sliding seat 49 adjust the position of the servo cylinder 411. With the up and down extension and retraction of the servo cylinder 411, the movement process of the dispensing head 57 can be realized. After that, the control valve on the dispensing head 57 opens, and the glue is sprayed out from the nozzle to start dispensing the workpiece. During the dispensing process, the flow sensor detects the instantaneous and cumulative flow of the glue in real time and feeds the data back to the control system. The control system precisely controls the flow by adjusting the opening of the control valve based on the difference between the preset dispensing volume and the actual flow, ensuring that the actual dispensing volume is consistent with the preset value. The flow control accuracy can reach ±1%. After the glue dispensing is completed, the control valve closes, the glue pump 55 stops working, and the drive mechanism 4 drives the dispensing head 57 to reset. At the same time, the positioning cylinder 32 retracts, moving the positioning plate 34 away from the workpiece and releasing the workpiece from its positioning. The conveyor belt 2 restarts, transporting the glued workpiece to the unloading station, where the operator removes the workpiece. The entire process is fully automated, from workpiece loading, conveying, positioning, glue application to unloading. The precise coordination of each mechanism greatly improves glue application efficiency and quality.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dispensing device for an automated packaging machine, comprising a frame (1), characterized in that: The frame (1) is provided with a conveyor belt (2), a positioning mechanism (3), a driving mechanism (4) and a glue dispensing mechanism (5), and the conveyor belt (2) is located at the lower inner side of the frame (1); The positioning mechanism (3) includes a positioning cylinder (32), a positioning plate (34), and a positioning sensor. The positioning cylinder (32) is mounted on a mounting plate (31), which is fixed on a frame (1). The positioning plate (34) is located on both sides of the conveyor belt (2). The positioning cylinder (32) is connected to the positioning plate (34) to drive the positioning plate (34) to move closer to or away from the conveyor belt (2). The positioning sensor is located on the positioning plate (34) to detect the position of the workpiece. The glue dispensing mechanism (5) includes a glue storage tank (51), a glue pump (55) and a glue dispensing head (57). The glue storage tank (51) is connected to the glue pump (55) through a pipe, and the glue pump (55) is connected to the glue dispensing head (57) through a flexible connecting pipe (56). The drive mechanism (4) includes a drive frame (41), a Y-axis (44), an X-axis (48), a sliding seat (49), and a servo electric cylinder (411). Two sets of screws (42) are arranged vertically within the drive frame (41), and the two sets of screws (42) are symmetrically arranged. The two symmetrically arranged screws (42) are connected to a transmission rod (47) via a transmission gear (46). The transmission rod (47) is connected to the output end of a drive motor (45), which is mounted on the drive frame (41). The screws (42)... A movable block (43) is threaded onto the drive frame (41). A Y-axis (44) and an X-axis (48) are fixed on the movable block (43). The Y-axis (44) and the X-axis (48) are located on different sets of screws (42) inside the drive frame (41). A sliding seat (49) is connected through the Y-axis (44) and the X-axis (48). A mounting seat (410) is installed on the sliding seat (49). A servo cylinder (411) is vertically mounted on the mounting seat (410). A dispensing head (57) is installed on the output end below the servo cylinder (411).

2. The dispensing device for an automated packaging machine according to claim 1, characterized in that: The storage tank (51) is equipped with a stirring assembly, a heating jacket and a liquid level sensor. The stirring assembly includes a stirring motor (52), a coupling (53) and a stirring paddle (54). The stirring motor (52) is located at the top center of the storage tank (51). The stirring paddle (54) extends into the storage tank (51) through the coupling (53) and is connected to the output shaft of the stirring motor (52). The heating jacket is wrapped around the outer wall of the storage tank (51). The liquid level sensor is a capacitive liquid level gauge and is located inside the storage tank (51).

3. The dispensing device for an automated packaging machine according to claim 1, characterized in that: The dispensing head (57) is equipped with a flow sensor and a control valve. The flow sensor is used to detect the dispensing flow rate, and the control valve is used to control the on / off state of the dispensing.

4. The dispensing device for an automated packaging machine according to claim 1, characterized in that: The positioning plate (34) is provided with a buffer pad. The buffer pad is made of rubber and is attached to the inside of the positioning plate (34) with strong adhesive. The outer surface of the buffer pad is provided with anti-slip texture.

5. The dispensing device for an automated packaging machine according to claim 1, characterized in that: A guide rod (33) is fixed on the positioning plate (34), the guide rod (33) passes through the mounting plate (31), and the guide rod (33) is slidably connected to the mounting plate (31).

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