CN218963105U

CN218963105U - Quick-dismantling piezoelectric valve free of secondary debugging

Info

Publication number: CN218963105U
Application number: CN202220991554.2U
Authority: CN
Inventors: 冯钊
Original assignee: Shenzhen Xinchen Precision Technology Co ltd
Current assignee: Shenzhen Xinchen Precision Technology Co ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2023-05-05
Anticipated expiration: 2032-04-26

Abstract

The utility model relates to a quick-dismantling type piezoelectric valve free of secondary debugging, which comprises a shell and a glue injection module, wherein the glue injection module comprises a piezoelectric driving mechanism, an executing mechanism and a glue injection mechanism, the piezoelectric driving mechanism and the executing mechanism are arranged in the shell, and the glue injection mechanism is detachably fixed outside the shell through a quick-dismantling device and is connected with the executing mechanism. The utility model can ensure that the disassembly, assembly and cleaning of the glue injection mechanism do not need secondary debugging, and the operation is more convenient and quicker, thereby effectively improving the production efficiency of products and reducing the precision requirement on parts.

Description

Quick-dismantling piezoelectric valve free of secondary debugging

Technical Field

The utility model relates to the technical field of piezoelectric injection valves, in particular to a quick-dismantling piezoelectric valve free from secondary debugging.

Background

The piezoelectric injection valve technology is an emerging valve body technology, has the advantages of good stability and consistency when being applied to dispensing equipment, has extremely small dispensing error, and can effectively avoid various problems caused by manual tape dispensing.

In the conventional piezoelectric injection valve, after the fluid tank is cleaned, the positional relationship between the components changes during reinstallation, so that secondary debugging is required, and the piezoelectric injection valve is fixed after the completion of the debugging. Therefore, the precision requirement on parts is high, and the installation and debugging after cleaning are complex and inconvenient, so that the use convenience and the working efficiency of the product are seriously affected.

Disclosure of Invention

Based on this, it is necessary to provide a quick detach type piezoelectric valve free from secondary debugging to make the dismouting not need secondary debugging when wasing, the operation is more convenient and fast, thereby effectively improved the production efficiency of product, reduced the precision requirement to the spare part.

In order to achieve the above object, the present utility model adopts the following technical scheme.

The utility model provides a quick-dismantling type piezoelectric valve free of secondary debugging, which comprises a shell and a glue injection module, wherein the glue injection module comprises a piezoelectric driving mechanism, an executing mechanism and a glue injection mechanism, the piezoelectric driving mechanism and the executing mechanism are arranged in the shell, and the glue injection mechanism is detachably fixed outside the shell through a quick-dismantling device and is connected with the executing mechanism.

Preferably, an L-shaped adjusting bracket is further disposed in the housing, the L-shaped adjusting bracket includes a knob portion, a telescopic portion and a fixing portion, the knob portion is meshed with the telescopic portion, the telescopic portion is fixedly connected with the fixing portion or integrally formed, and the knob portion is adapted to drive the telescopic portion and the fixing portion to move so as to adjust the distance between the fixing portion and the executing mechanism.

Preferably, the glue injection mechanism comprises a fluid groove, a firing pin and a nozzle, wherein the firing pin and the nozzle are arranged in the fluid groove, a channel suitable for glue to flow in is arranged in the fluid groove, and the nozzle is communicated with the channel; the upper end of the firing pin is connected with the actuating mechanism, and the lower end of the firing pin is suitable for being pressed into the nozzle to extrude the glue flowing into the nozzle.

Preferably, the firing pin is mounted in the fluid tank through a guide post, one end of the guide post passes through the fixing part to be connected with the actuating mechanism, the other end of the guide post is connected with the nozzle, and the firing pin and the nozzle are coaxially arranged.

Preferably, the glue injection mechanism further comprises a heating device, the heating device is closely attached to the fluid tank, a probe is arranged on the heating device, and the heating device is electrically connected with the fixing portion through the probe.

Preferably, the quick-release device comprises a quick-release bracket and a quick-release bolt, and the fluid tank, the heating device and the fixing part are assembled together through the quick-release bracket and locked and fixed by the quick-release bolt.

Preferably, the actuating mechanism comprises an upper firing pin and a large spring, wherein the upper end of the upper firing pin is fixed on a lever, and the lower end of the upper firing pin is sleeved with the large spring; and when the lever moves downwards, the lever is suitable for driving the upper firing pin to press the firing pin downwards and compress the large spring, and the large spring provides elastic force for resetting the upper firing pin.

Preferably, the actuating mechanism is driven by the piezoelectric driving mechanism through the lever, the lever rotates around a lever shaft, the piezoelectric driving mechanism and the actuating mechanism are located on the same side of the lever, and the force arm of the actuating mechanism is larger than that of the piezoelectric driving mechanism.

Preferably, the piezoelectric driving mechanism comprises an upper wedge block, a lower wedge block and a piezoelectric stack, wherein two ends of the piezoelectric stack are respectively connected with the lower wedge block and the lever through triangular blocks; the upper wedge block is driven by a piezoelectric bolt and pushes the lower wedge block, the lower wedge block pushes the piezoelectric stack, and the piezoelectric stack pushes the lever, so that the lever rotates and drives the upper firing pin to move downwards.

Preferably, the glue injection mechanism further comprises a glue pipe retainer fixed on the shell and a glue inlet joint fixed on the fluid tank, and the glue inlet joint is communicated with the channel.

The quick-disassembly secondary debugging-free piezoelectric valve provided by the utility model has the advantages that the glue injection mechanism is arranged outside the shell and is detachably fixed through the quick-disassembly device, so that the whole glue injection mechanism can be detached when the glue injection mechanism is required to be detached and cleaned, the independent disassembly of single parts is avoided, the whole glue injection mechanism can be installed and fixed when the cleaning is completed and the reassembly is completed, and the secondary debugging among the parts is avoided, so that the assembly of the glue injection mechanism is more convenient and rapid, the production efficiency is improved, and the precision requirements of the parts are reduced.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a quick-release type piezoelectric valve free from secondary debugging in the present embodiment;

FIG. 2 is a schematic cross-sectional view of a quick-release type piezoelectric valve free of secondary debugging in the present embodiment;

FIG. 3 is a schematic diagram illustrating a connection structure between the quick release device and the glue injection mechanism in the present embodiment;

FIG. 4 is a schematic diagram showing an exploded structure of the quick release device and the glue injection mechanism in the present embodiment;

FIG. 5 is a schematic cross-sectional view of the quick release device and the glue injection mechanism in this embodiment;

fig. 6 is a schematic diagram of a connection structure between the piezoelectric driving mechanism and the actuator in the present embodiment.

The achievement of the objectives of the present utility model, as well as its function and principles, will be further described in connection with the accompanying drawings in the detailed description.

Detailed Description

Further description will be made with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, the present embodiment provides a quick-release type piezoelectric valve 100 free of secondary debugging, which mainly includes a housing 10, a piezoelectric driving mechanism 20 and an actuating mechanism 30 disposed in the housing 10, and a glue injection mechanism 40 disposed outside the housing 10, wherein the glue injection mechanism 40 is detachably fixed outside the housing 10 through a quick-release device 50 and is connected with the actuating mechanism 30. After the piezoelectric driving mechanism 20 is electrified, the actuating mechanism 30 can be driven to act, the actuating mechanism 30 extrudes the glue injection mechanism 40, and glue inside the glue injection mechanism 40 is extruded.

The shell 10 is provided with a self-locking plug 11 which is used for connecting a power supply, the power supply converts low-voltage direct current required by each electronic device after passing through a circuit board, and the piezoelectric driving mechanism 20 and other modules work normally after being electrified and finish the dispensing process.

Specifically, referring to fig. 3 to 5, in the present embodiment, an L-shaped adjusting bracket 60 is further disposed in the housing 10, and the L-shaped adjusting bracket 60 penetrates through the entire housing 10 and mainly includes a knob portion 61, a telescopic portion 62, and a fixing portion 63, where the knob portion 61 and the telescopic portion 62 are engaged by a screw-nut mechanism, and the telescopic portion 62 and the fixing portion 63 are fixedly connected or integrally formed. The knob portion 61 is partially exposed above the housing 10, the telescopic portion 62 is partially covered below the housing 10, and the fixing portion 63 is substantially parallel to the lower surface of the housing 10. When the knob portion 61 is turned, the knob portion 61 drives the telescopic portion 62 to move through the screw-nut mechanism, and the telescopic portion 62 drives the fixing portion 63 to move, so that the distance between the fixing portion 63 and the housing 10 is adjusted, and the purpose of adjusting the distance between the fixing portion 63 and the actuator 30 is achieved.

In the present embodiment, the glue injection mechanism 40 includes a fluid tank 41, and a striker 42 and a nozzle 43 mounted in the fluid tank 41. A channel 44 for glue to flow in is arranged in the fluid tank 41, one end of the channel 44 is connected with a glue inlet joint 45, and the other end is connected with the nozzle 43. When the striker 42 moves up to the limit position, glue can flow into the gap between the striker 42 and the nozzle 43; when the striker 42 moves downward, the glue in the gap is pushed out from the nozzle 43, and dispensing action is achieved.

Referring to fig. 5, the striker 43 is installed in the fluid tank 41 by a guide post 46, and one end of the guide post 46 is connected to the actuator 30 through a hole 631 provided in the fixing portion 63 so that the striker 42 can be pressed when the actuator 30 moves down. In order to simplify the structure, the striker 42 can naturally spring up, in this embodiment, a small spring 47 is provided in the guide post 46, the tip of the striker 42 abuts against the small spring 47, and when the actuator 30 moves up, the striker 42 also moves up under the elastic force of the small spring 47, so that the gap is formed between the striker 42 and the nozzle 43.

In order to ensure that the nozzle opening is not glued, the striker 42 of the present embodiment is arranged coaxially with the nozzle 43.

In addition, the glue injection mechanism 40 of the present embodiment further includes a heating device 48 for preventing the glue from solidifying and reducing the viscosity of the glue, so that the heating device 48 is disposed closely to the fluid tank 41, and conducts heat to the fluid tank 41 through internal heat generation. The heating device 48 is provided with a probe 481, and the probe 481 is electrically connected to the fixing portion 63, so that the fixing portion 63 is electrically powered to electrically heat the inside.

Since the glue has different viscosity and the size of the spot size required for dispensing is different, the L-shaped adjusting bracket 60 of the present embodiment actually adjusts the height of the striker 42 that can be lifted when adjusting the distance between the fixing portion 63 and the actuator 30. When the viscosity of the glue is high or the dot diameter of the glue to be applied is high, the distance between the fixing portion 63 and the actuator 30 can be increased, whereas when the viscosity of the glue is low or the dot diameter of the glue to be applied is small, the distance between the fixing portion 63 and the actuator 30 can be decreased. The adjusting mode is very simple and convenient, can be continuously adjusted, and has higher precision.

Referring to fig. 3 and 4 again, the quick release device 50 includes a quick release bracket 51 and a quick release bolt 52, and the fluid tank 41, the heating device 48 and the fixing portion 63 are assembled together by the quick release bracket 51 and locked and fixed by the quick release bolt 52. The structure is convenient to disassemble and assemble and simple to maintain.

When the fluid tank 41 and the heating device 48 are installed, in order to achieve the best relative position between the firing pin 42 and the nozzle 43, the nozzle 43 and the firing pin 42 can be replaced by a calibration nozzle and a calibration firing pin, respectively, then the knob portion 61 is rotated, the distance between the fixing portion 63 and the actuator 30 is adjusted, when the calibration firing pin is positioned in the calibration nozzle and the lower surfaces of the calibration firing pin and the calibration firing pin are flush, at this time, the scale ring on the knob portion 61 can be reset to 0, and the L-shaped adjusting bracket 60 can be locked. Then, the calibration nozzle and the calibration striker are replaced with the nozzle 43 and the striker 42, respectively, which are actually used, and the relative positions between the nozzle 43 and the striker 42 are optimized. After debugging according to the steps, the L-shaped adjusting bracket 60 is kept still, and when the glue injection mechanism 40 needs to be cleaned later, the quick release device 50 is only required to be used for assembling the fluid tank 41, the heating device 48 and the fixing part 63, secondary debugging is not required, so that maintenance of glue dispensing equipment is greatly reduced, and the working efficiency of the glue dispensing equipment is improved.

Referring to fig. 6, the actuator 30 of the present embodiment includes an upper striker 31 and a large spring 32, wherein the upper end of the upper striker 31 is fixed to a lever 70, and the large spring 32 is sleeved on the lower end. When lever 70 is moved downward, upper striker 31 is driven to push down on striker 42 and compress large spring 32. When the lever 70 moves upward, the upper striker 31 is returned by the elastic force of the large spring 32. At the same time, the striker 42 rises and returns to the starting position upon loss of pressure from the upper striker 31, and glue can flow into the nozzle 43.

The piezoelectric driving mechanism 20 drives the actuating mechanism 30 through the lever 70, the lever 70 rotates around a lever shaft 71, the piezoelectric driving mechanism 20 and the actuating mechanism 30 are located on the same side of the lever 70, and the force arm of the actuating mechanism 30 is larger than that of the piezoelectric driving mechanism 20. Thus, when the movement distance of the piezoelectric driving mechanism 20 is small, a large displacement of the actuator 30 can be achieved.

In this embodiment, the piezoelectric driving mechanism 20 includes an upper wedge block 21, a lower wedge block 22 and a piezoelectric stack 23, and two ends of the piezoelectric stack 23 are respectively connected with the lower wedge block 22 and the lever 70 through triangular blocks 24; the upper wedge 21 is driven by a piezoelectric bolt 25. When the piezoelectric driving mechanism 20 is electrified, the piezoelectric bolt 25 pushes the upper wedge block 21 to horizontally move, the upper wedge block 21 pushes the lower wedge block 22 to downwardly move, the lower wedge block 22 pushes the piezoelectric stack 23 to downwardly move, the piezoelectric stack 23 pushes the lever 70, so that the lever 70 rotates and drives the upper firing pin 31 to downwardly move, the upper firing pin 31 presses the firing pin 42 to extrude glue in the nozzle 43, and the glue dispensing action is realized. When the piezoelectric driving mechanism 20 is de-energized, the piezoelectric bolts 25 are reset, the upper wedge block 21, the lower wedge block 22 and the piezoelectric stack 23 are all reset, the lever 70 loses the thrust of the piezoelectric driving mechanism 20 and is lifted under the action of the large spring 32, and at this time, the upper striker 31 moves upward and releases the striker 42, so that the striker 42 can be lifted.

In addition, the glue injection mechanism 40 further includes a glue pipe holder 49 fixed on the housing 10 and the glue inlet connector 45 fixed on the fluid tank 41, where the glue pipe holder 49 is used for clamping a glue pipe, and the glue inlet connector 45 is communicated with the glue pipe and used for guiding glue in the glue pipe into the fluid tank 41.

In summary, the quick-disassembly type piezoelectric valve free of secondary debugging of the utility model has the advantages that the glue injection mechanism is arranged outside the shell and is detachably fixed through the quick-disassembly device, so that the glue injection mechanism can be integrally disassembled when the glue injection mechanism is required to be disassembled and cleaned, the independent disassembly of single parts is avoided, the glue injection mechanism can be integrally installed and fixed when the cleaning is completed and the reassembly is completed, and the secondary debugging among the parts is avoided, thereby the assembly of the glue injection mechanism is more convenient and quicker, the production efficiency is improved, and the precision requirements of the parts are reduced.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims

1. The utility model provides a quick detach formula exempts from piezoelectric valve of secondary debugging, includes casing and injecting glue module, its characterized in that: the glue injection module comprises a piezoelectric driving mechanism, an executing mechanism and a glue injection mechanism, wherein the piezoelectric driving mechanism and the executing mechanism are arranged in the shell, and the glue injection mechanism is detachably fixed outside the shell through a quick-dismantling device and is connected with the executing mechanism.

2. The piezoelectric valve of claim 1, wherein: still be provided with an L shape in the casing and adjust the support, L shape is adjusted the support and is included knob portion, telescoping portion and fixed part, knob portion with telescoping portion meshing, telescoping portion with fixed part fixed connection or integrated into one piece, knob portion is suitable for driving telescoping portion and fixed part remove, in order to adjust the distance between fixed part and the actuating mechanism.

3. The piezoelectric valve of claim 2, wherein: the glue injection mechanism comprises a fluid groove, a firing pin and a nozzle, wherein the firing pin and the nozzle are arranged in the fluid groove, a channel suitable for glue to flow in is arranged in the fluid groove, and the nozzle is communicated with the channel; the upper end of the firing pin is connected with the actuating mechanism, and the lower end of the firing pin is suitable for being pressed into the nozzle to extrude the glue flowing into the nozzle.

4. A piezoelectric valve according to claim 3, wherein: the firing pin is installed in the fluid groove through a guide post, one end of the guide post penetrates through the fixing part to be connected with the actuating mechanism, the other end of the guide post is connected with the nozzle, and the firing pin and the nozzle are coaxially arranged.

5. A piezoelectric valve according to claim 3, wherein: the glue injection mechanism further comprises a heating device, the heating device is tightly attached to the fluid groove, a probe is arranged on the heating device, and the heating device is electrically connected with the fixing portion through the probe.

6. The piezoelectric valve of claim 5, wherein: the quick-release device comprises a quick-release bracket and a quick-release bolt, wherein the fluid tank, the heating device and the fixing part are assembled together through the quick-release bracket and are locked and fixed by the quick-release bolt.

7. The piezoelectric valve of claim 6, wherein: the actuating mechanism comprises an upper firing pin and a large spring, the upper end of the upper firing pin is fixed on a lever, and the lower end of the upper firing pin is sleeved with the large spring; and when the lever moves downwards, the lever is suitable for driving the upper firing pin to press the firing pin downwards and compress the large spring, and the large spring provides elastic force for resetting the upper firing pin.

8. The piezoelectric valve of claim 7, wherein: the actuating mechanism is driven by the piezoelectric driving mechanism through the lever, the lever rotates around a lever shaft, the piezoelectric driving mechanism and the actuating mechanism are positioned on the same side of the lever, and the force arm of the actuating mechanism is larger than that of the piezoelectric driving mechanism.

9. The piezoelectric valve of claim 8, wherein: the piezoelectric driving mechanism comprises an upper wedge block, a lower wedge block and a piezoelectric stack, wherein two ends of the piezoelectric stack are respectively connected with the lower wedge block and the lever through triangular blocks; the upper wedge block is driven by a piezoelectric bolt and pushes the lower wedge block, the lower wedge block pushes the piezoelectric stack, and the piezoelectric stack pushes the lever, so that the lever rotates and drives the upper firing pin to move downwards.

10. A piezoelectric valve according to any one of claims 3 to 9, wherein: the glue injection mechanism further comprises a glue pipe retainer fixed on the shell and a glue inlet connector fixed on the fluid tank, and the glue inlet connector is communicated with the channel.