Dispensing device

Abstract

The utility model discloses a kind of glue dispensing devices, including placing barrel, glue barrel is placed in placing barrel, placing barrel includes the glue outlet for the glue in glue barrel to flow out.Squeezing mechanism, squeezing mechanism is set in the end of glue barrel away from glue outlet, and squeezing mechanism is used to squeeze the glue in glue barrel towards glue outlet.Fixed block, fixed block is fixedly connected with placing barrel, first passage that fixed block is opened with glue outlet is communicated, and the connecting place of fixed block and placing barrel is provided with switch valve that opens and closes first passage.Gear pump mechanism, gear pump mechanism includes the first shell that is fixedly connected with fixed block, second passage and third passage are opened on the first shell, first passage is communicated with second passage, sensor for collecting the pressure of glue in second passage is also fixed on the first shell, glue dispensing head is fixed in third passage and communicated with third passage.Glue supply amount when glue dispensing device gluing is accurate, and glue deficiency can be found in time, avoid glue dispensing head gluing without glue or insufficient.

Description

Technical Field

[0001] This utility model relates to the field of dispensing equipment technology, and in particular to a dispensing device. Background Technology

[0002] In the adhesive bonding process of parts manufacturing, glue is often applied to the parts using dispensing equipment. To ensure a continuous supply of glue from the container, a power-driven device is needed to continuously draw glue from the container. Furthermore, the glue supply must be controlled simultaneously to prevent insufficient or excessive dispensing, thus ensuring a high yield rate. Improving the accuracy of glue supply is a key technical challenge. Especially when the glue in the container is nearly depleted, continuing to supply glue through the conveyor channel may result in insufficient glue for dispensing. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a dispensing device that provides accurate glue supply during dispensing and can detect insufficient glue in a timely manner, thus avoiding the situation where there is no glue or insufficient amount of glue when the dispensing head dispenses glue.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a dispensing device, comprising:

[0005] A placement bucket containing a glue bucket, the placement bucket including a glue outlet for the glue in the glue bucket to flow out;

[0006] An extrusion mechanism is provided at one end of the glue bucket away from the glue outlet, and the extrusion mechanism is used to extrude the glue in the glue bucket toward the glue outlet;

[0007] A fixing block is fixedly connected to the placement bucket. The fixing block has a first channel that communicates with the glue outlet. A switch valve for opening and closing the first channel is provided at the connection between the fixing block and the placement bucket.

[0008] The gear pump mechanism includes a first housing fixedly connected to the fixed block. The first housing has a second channel and a third channel. The first channel is connected to the second channel. A sensor for collecting the glue pressure in the second channel is also fixed on the first housing. The glue dispensing head is fixed at the third channel and is connected to the third channel.

[0009] The beneficial effects of this utility model are as follows:

[0010] The adhesive is delivered via a gear pump mechanism, improving the precision control of the adhesive quantity and increasing the supply accuracy during dispensing. Sensors on the first housing monitor the pressure in the second channel in real time; when the adhesive is insufficient, an alarm is triggered promptly to prevent further insufficient dispensing caused by continued glue delivery via the gear pump mechanism.

[0011] Furthermore, the upper end of the placement bucket has an opening, and the extrusion mechanism includes a top cover that can close the opening and is detachably connected to the placement bucket. A linear module is fixed on the top cover, and a pressure plate that can extend into the glue bucket is fixed to the output end of the linear module. The top cover and the placement bucket are detachable, facilitating the replacement of the glue bucket.

[0012] Furthermore, the top cover and the placement bucket are threaded together, which facilitates quick disassembly of the top cover for replacement of the plastic bucket.

[0013] Furthermore, the switching valve includes a switch driving component fixed to the fixed block. The switch driving component is connected to the switch block and is used to drive the switch block to move to open or close the first channel. A first sealing ring that cooperates with the switch block is fixed on the fixed block.

[0014] Furthermore, the fixing block and the first housing are fixedly connected by bolts, the first channel and the second channel are connected, and a second sealing ring is provided between the fixing block and the first housing to seal the connection between the first channel and the second channel.

[0015] Furthermore, the gear pump mechanism also includes a second housing, which is fixedly connected to the first housing. The second housing includes a cavity and an inlet and an outlet communicating with the cavity. The inlet and the outlet are respectively connected to the second channel and the third channel. The dispensing head is fixed at the outlet. A driving gear and a driven gear meshing with the driving gear are rotatably connected within the cavity. The quantitative delivery of adhesive is achieved through the meshing driving gear and driven gear, resulting in higher precision compared to a screw pump.

[0016] Furthermore, a drive motor is also fixed on the second housing, and the output end of the drive motor is connected to the drive gear and used to drive the drive gear to rotate.

[0017] Furthermore, the first housing is fixed to the connecting plate, and the connecting plate is fixedly connected to the robotic arm. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0020] Figure 3 This is a cross-sectional view of the second housing in an embodiment of the present invention.

[0021] In the picture:

[0022] 1. Placement bucket; 11. Glue outlet;

[0023] 2. Extrusion mechanism; 21. Top cover; 22. Linear module; 23. Pressure plate;

[0024] 3. Fixed block; 31. First channel;

[0025] 4. Gear pump mechanism; 41. First housing; 411. Second channel; 412. Third channel; 42. Second housing; 421. Inlet; 422. Outlet; 423. Driving gear; 424. Driven gear; 43. Drive motor;

[0026] 5. Sensors;

[0027] 6. Dispensing head;

[0028] 7. Switch valve;

[0029] 8. Connecting plate. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0031] This utility model discloses a dispensing device, see attached document. Figure 1 and attached Figure 2 As shown, it includes a placement bucket 1, a squeezing mechanism 2, a fixing block 3, and a gear pump mechanism 4.

[0032] The placement tank 1 is used to place the glue bucket, the extrusion mechanism 2 is used to pressurize the glue in the glue bucket so that the glue flows toward the fixed block 3, and the gear pump mechanism 4 controls the amount of glue dispensed from the dispensing head 6 so that the glue can be output at a constant rate.

[0033] The container 1 includes an outlet 11 for the glue to flow out of the container. The extrusion mechanism 2 is located at the end of the container away from the outlet 11. The extrusion mechanism 2 is used to extrude the glue in the container toward the outlet 11. When the extrusion mechanism 2 extrudes, it can provide power for the flow of the glue, but it cannot accurately measure the amount of glue flowing out.

[0034] The fixing block 3 is fixedly connected to the placement bucket 1, and the fixing block 3 has a first channel 31 that communicates with the glue outlet 11. The fixing block 3 serves two purposes: firstly, it connects the gear pump mechanism 4 and the glue bucket, fixing them together; secondly, it provides the first channel 31 for glue to flow into the gear pump mechanism 4.

[0035] A switch valve 7 for opening and closing the first channel 31 is provided at the connection between the fixing block 3 and the placement bucket 1. When glue supply is not required or the glue bucket is to be replaced, the switch block closes the first channel 31.

[0036] The gear pump mechanism 4 includes a first housing 41 fixedly connected to the fixed block 3. The first housing 41 has a second channel 411 and a third channel 412. The first channel 411 is connected to the second channel 411. A sensor 5 for collecting the glue pressure in the second channel 411 is also fixed to the first housing 41. The dispensing head 6 is fixed at the third channel 412 and is connected to the third channel 412. When the sensor 5 detects that the pressure in the second channel 411 is less than a set threshold, it indicates that there is insufficient glue in the second channel 411. If the gear pump mechanism 4 continues to deliver glue to the dispensing head 6, the dispensing volume will be insufficient. Therefore, the gear pump mechanism 4 can be stopped at this time, and the glue container can be replaced.

[0037] In this embodiment, the adhesive is delivered via a gear pump mechanism 4, improving the precise control of the adhesive quantity and enhancing the supply accuracy during dispensing. The pressure within the second channel 411 is collected in real time by a sensor 5 on the first housing 41. An alarm is triggered promptly when the adhesive is insufficient, preventing further dispensing via the gear pump mechanism 4 and avoiding insufficient adhesive delivery.

[0038] In one embodiment, the upper end of the placement bucket 1 has an opening, through which a glue bucket can be placed into the placement bucket 1. The extrusion mechanism 2 includes an upper cover 21 that can close the opening and is detachably connected to the placement bucket 1. A linear module 22 is fixed to the upper cover 21, and a pressure plate 23 that can extend into the glue bucket is fixed to the output end of the linear module 22. The linear module 22 pushes the pressure plate 23 downward, squeezing the glue in the glue bucket and allowing the glue to flow from the glue outlet 11 into the first channel 31. For example, the linear module 22 is a cylinder.

[0039] In this embodiment, the top cover 21 and the placement bucket 1 are detachable, making it easy to replace the plastic bucket.

[0040] In one embodiment, the upper cover 21 and the placement bucket 1 are threadedly connected, meaning that the upper cover 21 and the upper end of the placement bucket 1 have mating threads to allow for quick disassembly. Alternatively, the upper cover 21 can be snapped onto the placement bucket 1.

[0041] The switching valve 7 includes a switch actuator and a switch block. The switch actuator is fixed on the fixed block 3 and is connected to the switch block to drive the movement of the switch block. The switch block can move linearly to open and close the first channel 31. In this case, the switch actuator is a linear module 22, for example, a cylinder. The switch block can also rotate to open and close the first channel 31. In this case, the switching valve 7 resembles the valve core of a ball valve, and the switch actuator is a rotary actuator, for example, a motor.

[0042] A first sealing ring is fixed on the fixing block 3. When the switch block closes the first channel 31, the first sealing ring performs a sealing function. Part of the first sealing ring is embedded in the fixing block 3 and surrounds the first channel 31. Part of the first sealing ring protrudes from the fixing block 3 and can abut against the fixing block 3. The first sealing ring is squeezed when the fixing block 3 closes the first channel 31, thus performing a sealing function.

[0043] In one embodiment, the fixing block 3 and the first housing 41 are fixedly connected by bolts, allowing for quick assembly and disassembly of the first housing 41 and the fixing block 3. When fixed, the first channel 31 and the second channel 411 are aligned, and the first channel 31 and the second channel 411 can have the same diameter, with their ends aligned. A second sealing ring is provided between the fixing block 3 and the first housing 41 to seal the connection between the first channel 31 and the second channel 411, preventing glue leakage.

[0044] See appendix Figure 3 As shown, the gear pump mechanism 4 further includes a second housing 42, which is fixedly connected to the first housing 41. The second housing 42 includes a cavity and an inlet 421 and an outlet 422 communicating with the cavity. The inlet 421 and the outlet 422 are respectively connected to the second channel 411 and the third channel 412. The dispensing head 6 is fixed at the outlet 422. A driving gear 423 and a driven gear 424 meshing with the driving gear 423 are rotatably connected inside the cavity. The quantitative delivery of glue is achieved through the meshing driving gear 423 and driven gear 424, which has higher precision compared to a screw pump.

[0045] The driving gear 423 rotates under the drive of the drive motor 43, which in turn drives the driven gear 424 to rotate. The drive motor 43 is fixed on the second housing 42. The output end of the drive motor 43 is connected to the driving gear 423 and is used to drive the driving gear 423 to rotate.

[0046] See appendix Figure 1As shown, the first housing 41 is fixed to the connecting plate 8, and the connecting plate 8 is fixedly connected to the robotic arm (not shown in the figure). At this time, the robotic arm can drive the dispensing device to move until it reaches the dispensing position to perform dispensing.

[0047] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A dispensing device, characterized by: include: A placement bucket containing a glue bucket, the placement bucket including a glue outlet for the glue in the glue bucket to flow out; An extrusion mechanism is provided at one end of the glue bucket away from the glue outlet, and the extrusion mechanism is used to extrude the glue in the glue bucket toward the glue outlet; A fixing block is fixedly connected to the placement bucket. The fixing block has a first channel that communicates with the glue outlet. A switch valve for opening and closing the first channel is provided at the connection between the fixing block and the placement bucket. The gear pump mechanism includes a first housing fixedly connected to the fixed block. The first housing has a second channel and a third channel. The first channel is connected to the second channel. A sensor for collecting the glue pressure in the second channel is also fixed on the first housing. The dispensing head is fixed at the third channel and is connected to the third channel.

2. The dispensing device according to claim 1, characterized in that: The upper end of the placement bucket has an opening, and the extrusion mechanism includes an upper cover that can cover the opening and is detachably connected to the placement bucket. A linear module is fixed on the upper cover, and a pressure plate that can extend into the glue bucket is fixed at the output end of the linear module.

3. The dispensing device according to claim 2, characterized in that: The top cover and the placement bucket are threaded together.

4. The dispensing device according to claim 1, characterized in that: The switching valve includes a switch drive component fixed to the fixed block. The switch drive component is connected to the switch block and is used to drive the switch block to move to open or close the first channel. A first sealing ring that cooperates with the switch block is fixed on the fixed block.

5. The dispensing device according to claim 1, characterized in that: The fixing block and the first housing are fixedly connected by bolts, the first channel and the second channel are connected, and a second sealing ring is provided between the fixing block and the first housing to seal the connection between the first channel and the second channel.

6. The dispensing device according to claim 1, characterized in that: The gear pump mechanism further includes a second housing, which is fixedly connected to the first housing. The second housing includes a cavity and an inlet and an outlet communicating with the cavity. The inlet and the outlet are respectively connected to the second channel and the third channel. The dispensing head is fixed at the outlet. A driving gear and a driven gear meshing with the driving gear are rotatably connected inside the cavity.

7. The dispensing device according to claim 6, characterized in that: A drive motor is also fixed on the second housing. The output end of the drive motor is connected to the drive gear and is used to drive the drive gear to rotate.

8. The dispensing apparatus according to any one of claims 1-7, characterized in that: The first housing is fixed to the connecting plate, and the connecting plate is fixedly connected to the robot arm.

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