Automatic needle length adjusting device for needle head of hydro-smooth needle and production line

Abstract

The utility model provides a hydro-optical needle head length automatic adjusting device and a production line, the hydro-optical needle head length automatic adjusting device is provided with an adjusting station, the hydro-optical needle head length automatic adjusting device further comprises two adjusting mechanisms, in the first direction, the adjusting station is located between the two adjusting mechanisms, each adjusting mechanism comprises a first driving unit, a second driving unit and a rubbing module, the first driving unit drives the rubbing modules to move in the second direction, the second driving unit drives the first driving unit to move in the first direction, a clamping position can be formed between the two rubbing modules, the moving directions of the two rubbing modules are opposite, the rubbing modules extend in the second direction, and the second direction is perpendicular to the first direction. The production line is provided with the needle head length automatic adjusting device of the hydro-optical needle, and the needle head length automatic adjusting device of the hydro-optical needle can prevent the adjusting screw cap of the needle head of the hydro-optical needle from being excessively twisted.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic equipment technical field, specifically, relate to a water light needle needle head needle length automatic regulating device and the production line with the water light needle needle head needle length automatic regulating device. BACKGROUND

[0002] Water light needle needle head is a kind of medical instrument commonly used in medical cosmetology industry, the needle tube exposure length of the water light needle needle head of existing one can be adjusted, when adjusting, the exposure length of needle tube can be controlled by rotating the adjusting screw cap of itself;The exposure length of needle tube of this kind of water light needle needle head needs to be adjusted to maximum during production and assembly process. At present, the adjustment mode of the exposure length of needle tube on automatic production line or semi-automatic production line is usually as follows: water light needle needle head is placed on carrier to enable carrier to fix the seat body of water light needle needle head, then adjusting screw cap of water light needle needle head is clamped by jaw cylinder, and jaw cylinder is rotated to rotate adjusting screw cap by servo motor drive, and then the exposure length of needle tube is adjusted to maximum;However, the operation mode that adjusting screw cap is rotated by existing jaw cylinder and servo motor has the following shortcomings: although servo motor can accurately drive jaw cylinder to rotate preset angle each time, the initial exposure length of needle tube of each water light needle needle head is different, so that in actual adjustment process, adjusting screw cap is easily damaged due to being excessively twisted (overturning limit position) and thus the quality of water light needle needle head is affected or water light needle needle head is damaged. SUMMARY

[0003] In order to solve the above problems, the main purpose of the utility model is to provide a water light needle needle head needle length automatic regulating device capable of avoiding that adjusting screw cap of water light needle needle head is excessively twisted.

[0004] Another purpose of the utility model is to provide a production line provided with the above water light needle needle head needle length automatic regulating device.

[0005] In order to realize the main purpose of the utility model, the utility model provides a water light needle needle head needle length automatic regulating device, which has an adjusting station, wherein, two adjusting mechanisms are further included, the adjusting station is located between the two adjusting mechanisms in a first direction, the adjusting mechanism includes a first driving unit, a second driving unit and a rubbing module, the first driving unit drives the rubbing module to move in a second direction, the second driving unit drives the first driving unit to move in the first direction, a clamping position can be formed between the two rubbing modules, the moving directions of the two rubbing modules are opposite, the rubbing module extends along the second direction, and the second direction is perpendicular to the first direction.

[0006] From the above, two adjustment mechanism first through two rubbing module clamping water light needle needle head adjustment screw cap, and then control two rubbing module in the second direction opposite movement, to rub the adjustment screw cap rotation in the direction of the established; and because two rubbing module through the friction between the adjustment screw cap drive adjustment screw cap rotation, so when the adjustment screw cap rotation to its own rotation limit position, the rotation resistance is greater than the friction between the adjustment screw cap and rubbing module, so that the adjustment screw cap and rubbing module appear skid, make rubbing module can't continue to rub the adjustment screw cap rotation, to avoid the adjustment screw cap across its own rotation limit position.

[0007] One preferred scheme is that the rubbing module comprises a fixed frame and an elastic plate body, the fixed frame is detachably connected with the driving end of the first driving unit, and the elastic plate body is installed on the fixed frame, and the side of the elastic plate body close to the adjustment station protrudes from the fixed frame or is flush with the fixed frame.

[0008] From the above, since the rubbing module rubs the adjustment screw cap to rotate by the friction between the elastic plate body and the adjustment screw cap, the elastic plate body is prone to wear after being used for a certain period of time, and the above design makes the rubbing module replaceable, so as to ensure that the rubbing module can normally and stably cooperate with another rubbing module to rub the adjustment screw cap to rotate.

[0009] Further, the fixed frame comprises a connecting seat, a pressing plate and a locking assembly, the connecting seat is connected with the driving end of the first driving unit, the connecting seat has a receiving groove, the elastic plate body is installed in the receiving groove, the pressing plate is pressed on the elastic plate body, and the locking assembly is connected with the connecting seat, the elastic plate body and the pressing plate respectively.

[0010] From the above, the design makes the elastic plate body detachable relative to the fixed frame, thereby reducing the maintenance and replacement cost of the rubbing module and / or the elastic plate body.

[0011] Still further, the elastic plate body is made of rubber, silicone or thermoplastic elastomer.

[0012] From the above, the elastic plate body made of rubber, silicone or thermoplastic elastomer can effectively cooperate with another rubbing module to rub the adjustment screw cap to rotate, and can also avoid hard extrusion on the adjustment screw cap, so as to prevent the adjustment screw cap from being plastically deformed or cracked and / or disconnected from other components.

[0013] Another preferred scheme is that, along the rubbing direction of the rubbing module, the rubbing module has an initial position and a limit position, the initial position is located at the upstream end of the limit position; and the water light needle needle length automatic adjustment device further comprises a buffer, the buffer is used to limit the rubbing module from crossing the limit position.

[0014] From the above, the buffer can buffer the movement of the twisting module or the first driving mechanism driving the twisting module when the twisting module approaches the limit position, and also limit the twisting module, thereby reducing the risk of excessive rotation of the adjusting screw cap.

[0015] Further, the water-light needle needle length automatic adjusting device further comprises a pressing mechanism, the pressing mechanism is arranged at the adjusting station, the pressing mechanism comprises a pressing pin and a third driving unit, the pressing pin is located above the adjusting station, and the third driving unit can drive the pressing pin to move relative to the adjusting station in a height direction of the water-light needle needle length automatic adjusting device, and the height direction is perpendicular to the first direction and the second direction.

[0016] From the above, the pressing mechanism drives the pressing pin to move towards the taper seat of the water-light needle needle head through the third driving unit, so that the pressing pin is inserted into the flow channel of the taper seat to fix the water-light needle needle head by the carrier and ensure the normal rotation adjustment of the adjusting screw cap.

[0017] Further, the third driving unit comprises a third driving source, a connecting frame and a buffer module, the third driving source drives the connecting frame to move in the height direction, the buffer module comprises a sliding rod, a connecting block and an elastic buffer, the sliding rod is slidably connected with the connecting frame in the height direction, the sliding rod is connected with the connecting block, the pressing pin is installed on the connecting block, and the elastic buffer forces the connecting block to move towards the adjusting station in the height direction.

[0018] From the above, when the pressing pin exerts a pressure on the taper seat to meet the pressing requirement of the water-light needle needle head, the pressing pin can be buffered by the buffer module to move relative to the connecting frame, thereby avoiding excessive stress on the taper seat and damage to the water-light needle needle head.

[0019] Further, the buffer module further comprises a counterweight, and the counterweight is installed on the connecting block.

[0020] From the above, the counterweight is used to improve the reliability of the pressing pin pressing the taper seat and the water-light needle needle head, and ensure the pressing force of the pressing pin on the taper seat and the water-light needle needle head, and the pressing force of the pressing pin on the taper seat and the water-light needle needle head can be adjusted by adjusting the number and / or weight of the counterweight, so that the pressing force is adjustable.

[0021] Further, the number of the pressing pins is two or more, the two or more pressing pins are distributed along the second direction, the number of the buffer modules is two or more, the two or more buffer modules correspond to the two or more pressing pins one by one; the first driving unit comprises a first guide rail, a first sliding seat and a first driving source, the first guide rail extends along the second direction, the first sliding seat is in sliding connection with the first guide rail along the second direction, the rubbing module is installed on the first sliding seat, and the first driving source drives the first sliding seat to slide; the second driving unit comprises a second guide rail, a second sliding seat and a second driving source, the second guide rail extends along the first direction, the second sliding seat is in sliding connection with the second guide rail along the first direction, the first driving unit is installed on the first sliding seat, and the second driving source drives the second sliding seat to slide; the first driving source is a first air cylinder, the second driving source is a second air cylinder, and the third driving source is a third air cylinder.

[0022] As can be seen from the above, the number of the pressing pins is two or more and the number of the buffer modules is two or more, so that the adjusting efficiency of the water-light needle needle length automatic adjusting device can be improved; through the design of the first driving unit and the second driving unit, the adjusting efficiency of the water-light needle needle length automatic adjusting device can be further improved; through the adoption of the third air cylinder as the third driving source, the moving speed of the pressing pin can be improved, and the adjusting efficiency is further improved.

[0023] In order to achieve another purpose of the utility model, the utility model provides a production line, including material moving device and carrier, and the carrier has needle head installation position, wherein, the production line further includes the water-light needle needle length automatic adjusting device, and the material moving device can drive the carrier to move to the adjusting station.

[0024] As can be seen from the above, the production line provided with the water-light needle needle length automatic adjusting device can avoid that the adjusting cap is rotated to the limit position due to excessive rotation when the water-light needle needle length is adjusted, so that the water-light needle needle head is prevented from being damaged during the process of adjusting the exposed length of the needle tube of the water-light needle needle head. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the structure diagram of the embodiment of the water-light needle needle length automatic adjusting device of the utility model.

[0026] Figure 2 is the structure diagram of the embodiment of the water-light needle needle length automatic adjusting device of the utility model after omitting part of the components.

[0027] Figure 3 is the structure diagram of the adjusting mechanism of the embodiment of the water-light needle needle length automatic adjusting device of the utility model.

[0028] Figure 4 is the exploded view of the rubbing module of the embodiment of the water-light needle needle length automatic adjusting device of the utility model after omitting part of the components.

[0029] Figure 5 is the structure diagram of the pressing mechanism of the water-light needle needle length automatic adjusting device embodiment of the utility model.

[0030] The utility model is further described below in combination with the drawings and embodiments. DETAILED DESCRIPTION

[0031] Water-light needle needle length automatic adjusting device embodiment

[0032] Referring to Figure 1 The water-light needle needle length automatic adjusting device 100 comprises a rack 10, an adjusting mechanism 1 and a pressing mechanism 2. Among them, combining Figure 2 The adjusting mechanism 1 and the pressing mechanism 2 are both installed on the rack 10, the water-light needle needle length automatic adjusting device 100 has an adjusting station 101, and the number of the adjusting mechanism 1 is two; in the first direction X, the adjusting station 101 is located between the two adjusting mechanisms 1, and the pressing mechanism 2 is arranged at the adjusting station 101.

[0033] Combining Figure 3 The adjusting mechanism 1 comprises a first driving unit 11, a second driving unit 12, a rubbing module 13 and a buffer 14. The first driving unit 11 is used to drive the rubbing module 13 to move in the second direction Y, so that the rubbing module 13 can cooperate with the rubbing module 13 of another adjusting mechanism 1 to rub the adjusting screw cap 41 of the water-light needle needle head 4 at the adjusting station 101 to rotate, and then the needle tube exposure length of the water-light needle needle head 4 is adjusted to the maximum. The second driving unit 12 is used to drive the first driving unit 11 to move in the first direction X, so as to control the rubbing module 13 to rotate the adjusting screw cap 41 and cooperate with the rubbing module 13 of another adjusting mechanism 1 to clamp the adjusting screw cap 41, so as to ensure that the adjusting screw cap 41 can be rotated, that is, the rubbing module 13 of the two adjusting mechanisms 1 can form a clamping position to clamp the adjusting screw cap 41; wherein the moving direction of the two rubbing modules 13 is opposite, and the rubbing module 13 extends along the first direction X.

[0034] Preferably, in the present embodiment, the first driving unit 11 comprises a first guide rail 111, a first sliding seat 112 and a first driving source 113. The first guide rail 111 extends along the second direction Y; the first sliding seat 112 is in sliding connection with the first guide rail 111 in the second direction Y, and the rubbing module 13 is installed on the first sliding seat 112; the driving end of the first driving source 113 is connected with the first sliding seat 112 to drive the first sliding seat 112 to move the rubbing module 13 in the second direction Y. Preferably, the first driving source 113 is a first air cylinder, which can make the surrounding environment of the water-light needle needle length automatic adjusting device 100 cleaner and more tidy, and can prevent the water-light needle needle 4 from being polluted; in addition, using the first air cylinder as the first driving source 113 can make the first driving unit 11 have a relatively fast reaction driving capability.

[0035] The second driving unit 12 comprises a second guide rail 121, a second sliding seat 122 and a second driving source; the second guide rail 121 is installed on the rack 10, and the second guide rail 121 extends along the first direction X; the second sliding seat 122 is in sliding connection with the second guide rail 121 in the first direction X, and the first guide rail 111 of the first driving unit 11 is installed on the second sliding seat 122; the driving end of the second driving source is connected with the second sliding seat 122 to drive the second sliding seat 122 to move the first driving unit 11 and the rubbing module 13 in the first direction X. Preferably, the second driving source is a second air cylinder, which can make the surrounding environment of the water-light needle needle length automatic adjusting device 100 cleaner and more tidy, and can prevent the water-light needle needle 4 from being polluted; using the second air cylinder as the second driving source can make the second driving unit 12 have a relatively fast reaction driving capability.

[0036] Of course, as another alternative, in other embodiments, the first driving unit 11 can also be a first linear module, and when the first linear module is used as the first driving unit 11, the rubbing module 13 is connected with a first sliding table of the first linear module; the second driving unit 12 can also be a second linear module, and when the second linear module is used as the second driving unit 12, the first guide rail 111 is connected with a second sliding table of the second linear module.

[0037] In combination Figure 4The rubbing module 13 comprises a fixed frame 131 and an elastic plate body 132. The fixed frame 131 is connected with the driving end (for example, the first sliding seat 112) of the first driving unit 11, and preferably, the fixed frame 131 is connected with the first sliding seat 112 through bolts. The elastic plate body 132 is installed on the fixed frame 131. In this embodiment, the side of the elastic plate body 132 close to the adjusting station 101 preferably protrudes from the fixed frame 131. Of course, in other embodiments, the side of the elastic plate body 132 close to the adjusting station 101 can be flush with the fixed frame 131. However, in this embodiment, the thickness of the elastic plate body 132 is greater than the height of the adjusting cap 41 of the water-light needle needle head 4, and when the elastic plate body 132 is in contact with the adjusting cap 41, the adjusting cap 41 is located between the top and bottom of the elastic plate body 132. Since the rubbing module 13 cooperates with the rubbing module 13 of the other adjusting mechanism 1 to clamp and rub the adjusting cap 41, the rotation of the adjusting cap 41 is dependent on the friction between the elastic plate body 132 and the adjusting cap 41. Therefore, after being used for a certain period of time, the elastic plate body 132 will be worn to a certain extent. When the wear reaches a certain replacement requirement, the rubbing module 13 needs to be replaced to ensure that the rubbing module 13 can normally and stably cooperate with the rubbing module 13 to rub the adjusting cap 41. Through the above design, the rubbing module 13 has the replaceability.

[0038] In order to reduce the maintenance and replacement cost of the rubbing module 13 and / or the elastic plate body 132, the elastic plate body 132 and the fixed frame 131 can be designed to be detachably connected. For example, the fixed frame 131 is designed as follows: the fixed frame 131 comprises a connecting seat 1311, a pressing plate 1312 and a locking assembly. The connecting seat 1311 is detachably connected with the driving end of the first driving unit 11. The connecting seat 1311 has a receiving groove 13111, and the elastic plate body 132 is installed in the receiving groove 13111. The pressing plate 1312 is pressed on the elastic plate body 132, and the locking assembly is connected with the connecting seat 1311, the elastic plate body 132 and the pressing plate 1312 respectively to control the clamping and fixing of the elastic plate body 132 by the connecting seat 1311 and the pressing plate 1312. It should be noted that, as another optional solution, in other embodiments, the connecting seat 1311 of the fixed frame 131 can be integrally formed with the first sliding seat 112.

[0039] Preferably, the elastic plate body 132 can be made of rubber, silicone or thermoplastic elastomer, so that the elastic plate body 132 can effectively cooperate with the rubbing module 13 to rub the adjusting cap 41, and avoid hard extrusion of the adjusting cap 41 by the elastic plate body 132, prevent the adjusting cap 41 from being plastically deformed or cracked due to pressure, and / or prevent the adjusting cap 41 from being disconnected from other components.

[0040] Further, the twisting module 13 has an initial position and a limit position along the twisting direction of the twisting module 13; wherein the initial position is located at the upstream end of the limit position. The buffer 14 is used to limit the movement of the twisting module 13 beyond the limit position; as in the embodiment, the buffer 14 is installed on the second sliding seat 122, and the buffer end of the buffer 14 is arranged towards the first sliding seat 112, so that when the first driving unit 11 drives the first sliding seat 112 and the twisting module 13 thereon to move to the limit position, the buffer end of the buffer 14 contacts the first sliding seat 112 to buffer and limit the sliding of the first sliding seat 112; of course, as another alternative, in other embodiments, the buffer 14 can also be installed on the rack 10, and the buffer end of the buffer 14 is arranged towards the twisting module 13, so that when the first driving unit 11 drives the first sliding seat 112 and the twisting module 13 thereon to move to the limit position, the buffer end of the buffer 14 contacts the twisting module 13 to buffer and limit the movement of the twisting module 13, which is less integral than the design of installing the buffer 14 on the second sliding seat 122 and buffering the first sliding seat 112. It can be seen that the buffer 14 can buffer the movement of the twisting module 13 or the first driving mechanism driving the twisting module 13 to move when the twisting module 13 approaches the limit position, and also plays a limiting role for the twisting module 13, reducing the risk of over-adjusting the rotating cap 41.

[0041] In combination Figure 5 The pressing mechanism 2 includes a pressing pin 21 and a third driving unit 22, the pressing pin 21 is located above the adjusting station 101, and the third driving unit 22 is used to drive the pressing pin 21 to move relative to the hydroacupuncture needle 4 at the adjusting station 101 in the height direction Z of the water light needle needle length automatic adjusting device 100; wherein the height direction Z, the first direction X and the second direction Y are perpendicular to each other. By setting the pressing mechanism 2, when the two adjusting mechanisms 1 rotate the adjusting rotating cap 41 of the hydroacupuncture needle, the pressing mechanism 2 drives the pressing pin 21 to move to the taper seat 42 of the hydroacupuncture needle 4 through the third driving unit 22, so that the pressing pin 21 is inserted into the flow channel of the taper seat 42 to cooperate with the carrier 3 placing the hydroacupuncture needle 4 to press and fix the hydroacupuncture needle 4, and ensure the normal rotation adjustment of the adjusting rotating cap 41.

[0042] Preferably, the third driving unit 22 comprises a third driving source 221123, a connecting frame 222 and a buffer module 223. The third driving source 221123 is installed on the rack 10; wherein the third driving source 221123 preferably adopts a third cylinder to facilitate the moving speed of the pressing pin 21, thereby improving the adjustment efficiency. The connecting frame 222 is connected with the driving end (such as the piston rod) of the third driving source 221123, so that the third driving source 221123 can drive the connecting frame 222 to move in the height direction Z. The buffer module 223 comprises a sliding rod 2231, a connecting block 2232 and an elastic buffer 2233. The sliding rod 2231 is parallel to the height direction Z, and the sliding rod 2231 is slidingly connected with the connecting frame 222 in the height direction Z; the sliding rod 2231 passes through the connecting frame 222, and one end of the sliding rod 2231 located above the connecting frame 222 is provided with a limiting piece to prevent the sliding rod 2231 from falling off the connecting frame 222. The connecting block 2232 is connected with one end of the sliding rod 2231 close to the adjustment station 101 (i.e. one end located below the connecting frame 222), and the pressing pin 21 is installed on the connecting block 2232. The elastic buffer 2233 is used to force the connecting block 2232 to move in the height direction Z towards the adjustment station 101. In this embodiment, the elastic buffer 2233 is a compression spring, which is sleeved on the sliding rod 2231 and abuts between the connecting frame 222 and the sliding block 2235; of course, in other embodiments, according to the installation position of the elastic buffer 2233, the elastic buffer 2233 can also be provided as a tension spring or other elastic buffer 2233 with the same function and effect. By setting the buffer module 223, when the pressing force of the pressing pin 21 on the taper seat 42 of the hydro-acupuncture needle 4 meets the pressing requirement of the hydro-acupuncture needle 4, the pressing pin 21 can be buffered by the buffer module 223 to move relative to the connecting frame 222, thereby avoiding excessive stress on the taper seat 42 to cause damage to the hydro-acupuncture needle 4.

[0043] More preferably, the buffer module 223 further comprises a third guide rail 2234 and a sliding block 2235. The third guide rail 2234 is installed on the rack 10, and the third guide rail 2234 is parallel to the height direction Z. The sliding block 2235 is slidingly connected with the third guide rail 2234 in the third direction, and the sliding block 2235 is connected with the connecting block 2232. By setting the third guide rail 2234 and the sliding block 2235, the third driving source 221123 can better and stably drive the connecting frame 222 and the buffer module 223 to move, thereby avoiding the buffer module 223 and the pressing pin 21 thereon from shaking during movement, so that the pressing pin 21 can be accurately inserted into the flow channel of the taper seat 42 of the hydro-acupuncture needle 4.

[0044] Further, the buffer module 223 further comprises a counterweight 2236, the counterweight 2236 is installed on the connecting block 2232, the counterweight 2236 is used to improve the reliability of the pressing pin 21 pressing the taper seat 42 and the hydro-acupuncture needle head 4, and ensure the pressing force of the pressing pin 21 pressing the taper seat 42 and the hydro-acupuncture needle head 4; wherein the pressing force of the pressing pin 21 pressing the taper seat 42 and the hydro-acupuncture needle head 4 can be adjusted by adjusting the number and / or weight of the counterweight 2236, so that the pressing force can be adjusted.

[0045] In order to improve the adjustment efficiency of the hydro-acupuncture needle head length automatic adjustment device 100, the number of the pressing pin 21 is preferably set to two or more, and the two or more pressing pins 21 are distributed along the second direction Y; correspondingly, the number of the buffer module 223 is set to two or more, and the two or more buffer modules 223 correspond to the two or more pressing pins 21 one by one. As in the present embodiment, the number of the pressing pin 21 is six, and the number of the buffer module 223 is six.

[0046] Next, the working process of the hydro-acupuncture needle head length automatic adjustment device 100 is briefly described:

[0047] When the carrier 3 loaded with the hydro-acupuncture needle head 4 is moved to the adjustment station 101, the third driving unit 22 of the pressing mechanism 2 drives the pressing pin 21 to move to the hydro-acupuncture needle head 4, so that the pressing pin 21 is inserted into the flow channel of the taper seat 42 corresponding to one hydro-acupuncture needle head 4, so as to clamp and fix the hydro-acupuncture needle head 4 with the carrier 3.

[0048] Then, the second driving unit 12 of the adjustment mechanism 1 drives the first driving unit 11 and the rubbing module 13 to move to the adjustment cap 41 of the hydro-acupuncture needle head 4, so that the rubbing modules 13 of the two adjustment mechanisms 1 clamp the adjustment cap 41. Among them, the second driving units 12 of the two adjustment mechanisms 1 preferably act simultaneously; of course, as another optional solution, the two second driving units 12 can act in sequence.

[0049] Then, the first driving unit 11 of the adjustment mechanism 1 drives the rubbing module 13 to move a preset stroke, so as to cooperate with the rubbing module 13 of the other adjustment mechanism 1 to rub the adjustment cap 41 to rotate, so that the length of the needle tube of the hydro-acupuncture needle head 4 is exposed to the maximum. Among them, the moving direction of the rubbing module 13 is opposite, so as to realize the rotation of the rubbing adjustment cap 41.

[0050] In the process of rotating the adjusting screw cap 41 by the two adjusting mechanisms 1, if the rotation of the adjusting screw cap 41 reaches the self rotation limit position, the rotation resistance of the adjusting screw cap 41 is greater than the friction between the adjusting screw cap 41 and the elastic plate body 132 of the rubbing module 13, and then the elastic plate body 132 slips, so that the rubbing module 13 cannot rub the adjusting screw cap 41, and the adjusting screw cap 41 is prevented from exceeding the self rotation limit position, and the quality of the water light needle 4 is prevented from being affected or the water light needle 4 is prevented from being damaged.

[0051] Compared with the existing rotating adjustment of the adjusting screw cap 41 of the water light needle 4 by the claw cylinder and the servo motor, the water light needle length automatic adjusting device 100 can prevent the adjusting screw cap 41 from being excessively twisted, and the quality of the water light needle 4 is prevented from being affected or the water light needle 4 is prevented from being damaged.

[0052] Production line embodiment

[0053] The production line comprises a material moving device, a carrier and the water light needle length automatic adjusting device described in the above water light needle length automatic adjusting device embodiment. The carrier has a needle head mounting position, the number of the needle head mounting positions is the same as the number of the pressing pins of the pressing mechanism of the water light needle length automatic adjusting device, and the material moving device can drive the carrier to move to the adjusting station. The production line can avoid the adjusting screw cap of the water light needle from being excessively rotated and reaching the self rotation limit position, so that the water light needle is prevented from being damaged during the adjusting process of the exposed length of the needle tube of the water light needle.

[0054] Finally, it should be emphasized that the above description is only the preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic needle length adjustment device for water-light injection needles, featuring an adjustment station, characterized in that... Also includes: Two adjustment mechanisms are provided, and in the first direction, the adjustment station is located between the two adjustment mechanisms. The adjustment mechanism includes a first drive unit, a second drive unit, and a rubbing module. The first drive unit drives the rubbing module to move in a second direction, and the second drive unit drives the first drive unit to move in the first direction. A clamping position can be formed between the two rubbing modules. The two rubbing modules move in opposite directions. The rubbing module extends along the second direction, which is perpendicular to the first direction.

2. The automatic needle length adjustment device for water-light needles according to claim 1, characterized in that: The rubbing module includes: A fixing frame, which is connected to the driving end of the first driving unit; An elastic plate is mounted on the fixed frame, and the side of the elastic plate near the adjustment position protrudes from the fixed frame or is flush with the fixed frame.

3. The automatic needle length adjustment device for water-light needles according to claim 2, characterized in that: The fixing frame includes: A connecting seat is connected to the driving end of the first driving unit, and the connecting seat has a receiving slot, in which the elastic plate is installed; A pressure plate, which is pressed onto the elastic plate; A locking assembly is connected to the connecting seat, the elastic plate, and the pressure plate, respectively.

4. The automatic needle length adjustment device for water-light needles according to claim 3, characterized in that: The elastic plate is made of rubber, silicone, or thermoplastic elastomer.

5. The automatic needle length adjustment device for water-light needles according to claim 1, characterized in that: Along the rubbing direction of the rubbing module, the rubbing module has an initial position and an extreme position, the initial position being located upstream of the extreme position; The automatic needle length adjustment device for the water-light needle also includes a buffer, which is used to limit the rubbing module from going beyond the limit position.

6. The automatic needle length adjustment device for water-light injection according to any one of claims 1 to 5, characterized in that: The automatic needle length adjustment device for the water-light injection needle also includes a clamping mechanism, which is located at the adjustment station. The clamping mechanism includes: A pressure pin, which is located above the adjustment station; The third driving unit can drive the pressure pin to move relative to the adjustment station in the height direction of the automatic adjustment device for the needle length of the water light needle, and the height direction is perpendicular to the first direction and the second direction respectively.

7. The automatic needle length adjustment device for water-light needles according to claim 6, characterized in that: The third drive unit includes: Third driving source; The connecting frame is driven by the third drive source to move in the height direction; A buffer module includes a slide rod, a connecting block, and an elastic buffer member. The slide rod is slidably connected to the connecting frame in the height direction. The slide rod is connected to the connecting block. The pressure pin is installed on the connecting block. The elastic buffer member forces the connecting block to move towards the adjustment position in the height direction.

8. The automatic needle length adjustment device for water-light needles according to claim 7, characterized in that: The buffer module also includes a counterweight, which is mounted on the connecting block.

9. The automatic needle length adjustment device for water-light needles according to claim 8, characterized in that: The number of pressure pins is two or more, and the two or more pressure pins are distributed along the second direction. The number of buffer modules is two or more, and the two or more buffer modules correspond one-to-one with the two or more pressure pins. The first driving unit includes a first guide rail, a first sliding seat, and a first driving source. The first guide rail extends along the second direction, and the first sliding seat is slidably connected to the first guide rail in the second direction. The rubbing module is mounted on the first sliding seat, and the first driving source drives the first sliding seat to slide. The second driving unit includes a second guide rail, a second sliding seat, and a second driving source. The second guide rail extends along the first direction, and the second sliding seat is slidably connected to the second guide rail in the first direction. The first driving unit is mounted on the first sliding seat, and the second driving source drives the second sliding seat to slide. The first driving source is a first cylinder, the second driving source is a second cylinder, and the third driving source is a third cylinder.

10. A production line, comprising a material transfer device and a carrier, said carrier having a needle mounting position, characterized in that, The production line also includes: The automatic needle length adjustment device for water-light needles as described in any one of claims 1 to 9, wherein the material transfer device can drive the carrier to move to the adjustment station.

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