CN214323000U - Four-channel feeding and discharging mechanism of spring grinding machine - Google Patents

Four-channel feeding and discharging mechanism of spring grinding machine Download PDF

Info

Publication number
CN214323000U
CN214323000U CN202120171696.XU CN202120171696U CN214323000U CN 214323000 U CN214323000 U CN 214323000U CN 202120171696 U CN202120171696 U CN 202120171696U CN 214323000 U CN214323000 U CN 214323000U
Authority
CN
China
Prior art keywords
material limiting
seat
grinding machine
spring
unloading mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202120171696.XU
Other languages
Chinese (zh)
Inventor
陆传宝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuji Maisite Automation Technology Co ltd
Original Assignee
Zhuji Maisite Automation Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhuji Maisite Automation Technology Co ltd filed Critical Zhuji Maisite Automation Technology Co ltd
Priority to CN202120171696.XU priority Critical patent/CN214323000U/en
Application granted granted Critical
Publication of CN214323000U publication Critical patent/CN214323000U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

The embodiment of the utility model provides a go up unloading mechanism in four passageways of spring grinding machine belongs to spring grinding machine technical field, include: the upper circumference of the rotating disc is provided with a plurality of accommodating holes and a plurality of clamping grooves in a surrounding manner, and the accommodating holes can accommodate springs; the rotating seat is fixedly arranged at the center of the upper end face of the rotating disc; the feeding assembly comprises a feeding base, a lifting seat, a material limiting seat and a clamping block; the feeding base is movably connected to the rotating seat; the lower end of the lifting seat is connected to the feeding base, and the upper end of the lifting seat is connected to the limiting seat; the material limiting seat is provided with a material limiting cavity communicated with the containing hole, and the material limiting cavity is communicated with a material limiting cylinder to limit the downward movement of a spring; the lifting seat acts on the clamping block, and the material limiting seat rotates along with the rotating disc through the clamping block; the technical effect that the feeding assembly feeds materials to the rotating disc accurately is achieved.

Description

Four-channel feeding and discharging mechanism of spring grinding machine
Technical Field
The utility model relates to a spring grinding machine technical field especially relates to a last unloading mechanism of four passageways of spring grinding machine.
Background
The working mode of the prior spring grinding machine on the end face of a spring is as follows: put into the rolling disc with the spring on, the rolling disc rotates the in-process and can pass through the inside emery wheel of spring grinding machine main part, makes the emery wheel polish the tip of spring through the rolling disc. The spring feeding mode is that the vibration disc is matched with the conveying hose, the vibration disc arranges the springs in order and pushes the arranged springs to fall on the rotating disc along the conveying hose.
However, when the traditional conveying hose feeds the rotating disc, a part of springs cannot be accurately thrown into accommodating holes of the rotating disc, the feeding speed of the feeding assembly is influenced, and the spring grinding speed is influenced.
Therefore, the technical problems of the prior art are as follows: the feeding of the feeding assembly to the rotating disc is not accurate.
Disclosure of Invention
The embodiment of the application provides a four-channel feeding and discharging mechanism of a spring grinding machine, which solves the technical problem that in the prior art, a feeding assembly cannot accurately feed a rotating disc; the technical effect that the feeding assembly feeds materials to the rotating disc accurately is achieved.
The embodiment of the application provides a four-channel loading and unloading mechanism of a spring grinding machine, which is arranged between a spring grinding machine main body and a vibrating disc; the four-channel loading and unloading mechanism of the spring grinding machine comprises: the upper circumference of the rotating disc is provided with a plurality of accommodating holes and a plurality of clamping grooves in a surrounding manner, and the accommodating holes can accommodate springs; the rotating seat is fixedly arranged at the center of the upper end face of the rotating disc; the feeding assembly comprises a feeding base, a lifting seat, a material limiting seat and a clamping block; the feeding base is movably connected to the rotating seat; the lower end of the lifting seat is connected to the feeding base, and the upper end of the lifting seat is connected to the limiting seat; the material limiting seat is provided with a material limiting cavity communicated with the containing hole, and the material limiting cavity is communicated with a material limiting cylinder to limit the downward movement of a spring; the clamping block is positioned above the clamping groove, the clamping block and the clamping groove can be clamped, and the clamping block is connected with the material limiting seat; the lifting seat acts on the clamping block, and the material limiting seat rotates along with the rotating disc through the clamping block.
Preferably, the material limiting seat is further provided with a feeding pipe in a connected mode, and the feeding pipe is communicated with the upper end of the material limiting cavity, so that the spring in the vibration disc moves into the material limiting cavity.
Preferably, the clamping groove is located on the outer side of the accommodating hole, and the clamping groove is specifically a clamping groove which is open to the outer side.
Preferably, the clamping grooves correspond to the accommodating holes one to one, so that the material limiting cavity corresponds to the accommodating holes when the clamping blocks in the feeding assembly are matched with the clamping grooves.
Preferably, the bottom of the rotating disc is further provided with a base, and a part of the chassis is provided with an opening which is vertically through relative to the accommodating hole of the rotating disc.
Preferably, the material limiting cylinder comprises a first material limiting cylinder and a second material limiting cylinder, and the first material limiting cylinder is positioned above the second material limiting cylinder; the output end of the first limiting cylinder and the output end of the second limiting cylinder can be transversely arranged in the material limiting cavity, and a space capable of containing a spring is formed between the output end of the first limiting cylinder and the output end of the second limiting cylinder.
Preferably, the fixture block can rotate relative to the material limiting seat.
Preferably, the fixture block is a rotatable pulley.
Preferably, the four-channel loading and unloading mechanism of the spring grinding machine further comprises: the blanking assembly comprises a blanking base, a blanking cylinder and a push rod; one end of the blanking base is movably connected to the rotating seat, and the other end of the blanking base is fixedly connected with the blanking cylinder; the telescopic direction of the blanking cylinder faces the rotating seat, the output end of the blanking cylinder is connected with a push rod, and the spring located in the containing hole is enabled to move downwards through the push rod.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
1. in the embodiment of the application, the rotating seat is constructed on the rotating disc, and the feeding assembly can rotate along with the rotating disc by utilizing the rotating seat; the clamping block is matched with the clamping groove, so that the material limiting cavity on the feeding assembly and the accommodating cavity on the rotating disc synchronously move, and the falling point of the spring moving downwards from the discharging cavity is conveniently located on the accommodating hole; the technical problem that feeding of the feeding assembly to the rotating disc is not accurate in the prior art is solved; the technical effect that the feeding assembly feeds materials to the rotating disc accurately is achieved.
2. In this application embodiment, through setting up the draw-in groove at the outside edge of rolling disc, the draw-in groove has an opening to the lateral surface in addition to in can be convenient when fixture block downstream put into the draw-in groove, on the other hand also guarantees that the fixture block can be smooth and easy withdraws from in the draw-in groove. Furthermore, the structure of the clamping block can be optimized, the rotatable clamping block is designed, and smooth contact between the clamping block and the clamping groove is ensured.
3. In this application embodiment, set up first spacing jar and second spacing jar and make a spring by the holding in interval between them to the spring is exported downwards that the material loading subassembly can be stable at every turn, avoids the spring to be died by unordered card in the material limiting cavity.
4. In the embodiment of the application, the blanking assembly is connected to the rotating seat, and the blanking assembly can follow the feeding assembly; the blanking assembly can also stably correspond to the containing hole in the rotating disc when the feeding assembly and the rotating seat follow up, so that the push rod can push materials accurately.
Drawings
FIG. 1 is a schematic axial view of a four-channel loading and unloading mechanism of a spring grinding machine according to an embodiment of the present application;
FIG. 2 is a schematic axial view of a four-channel loading and unloading mechanism of a spring grinding machine according to an embodiment of the present disclosure;
FIG. 3 is a schematic top view of a four-channel loading and unloading mechanism of a spring grinding machine according to an embodiment of the present disclosure;
FIG. 4 is a sectional view taken along line A-A of FIG. 3;
FIG. 5 is a sectional view taken along line B-B of FIG. 3;
fig. 6 is a partial enlarged view of the left side of fig. 5.
Reference numerals: 1. a spring grinding machine main body; 2. a four-channel loading and unloading mechanism; 21. a base; 22. rotating the disc; 221. a housing hole; 222. a card slot; 23. a feeding assembly; 231. a feeding base; 232. a lifting seat; 233. a material limiting seat; 2331. a material limiting cavity; 2332. a first material limiting cylinder; 2333. a second material limiting cylinder; 234. a clamping block; 24. a feed pipe; 25. a blanking assembly; 251. a blanking base; 252. a blanking cylinder; 253. a push rod; 26. a rotating seat; 3. the disk is vibrated.
Detailed Description
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The embodiment of the application provides a four-channel loading and unloading mechanism of a spring grinding machine, wherein a rotating seat 26 is constructed on a rotating disc 22, and a loading assembly 23 can rotate along with the rotating disc 22 by utilizing the rotating seat 26; the clamping block 234 is matched with the clamping groove 222, so that the material limiting cavity 2331 on the feeding assembly 23 and the accommodating cavity on the rotating disc 22 move synchronously, and the falling point of the spring moving downwards from the discharging cavity is convenient to be positioned on the accommodating hole 221; the technical problem that feeding of the feeding assembly 23 to the rotating disc 22 is not accurate in the prior art is solved; the technical effect that the feeding component 23 accurately feeds the rotating disc 22 is achieved.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
A four-channel loading and unloading mechanism of a spring grinding machine refers to the attached figures 1-3 of the specification and is arranged between a spring grinding machine main body 1 and a vibrating disc 3; the last unloading mechanism 2 of four passageways of spring grinding machine includes: chassis, carousel 22, roating seat 26, material loading subassembly 23 and unloading subassembly 25. Wherein, rotating seat 26 sets up on rolling disc 22, and the one end swing joint of material loading subassembly 23 is on rotating seat 26, and the other end of material loading subassembly 23 is provided with fixture block 234, and material loading subassembly 23 utilizes the follow-up state after fixture block 234 and rolling disc 22 are connected to make the spring can be stable and accurate drop into the holding hole 221 of rolling disc 22.
A rotating disc 22 for carrying the spring of the spring to be ground. Reference is made to figures 2-3 of the specification; a plurality of accommodating holes 221 and a plurality of locking slots 222 are circumferentially arranged on the upper circumference of the rotating disc 22, and the accommodating holes 221 can accommodate springs. The card slot 222 is located outside the receiving hole 221, and the card slot 222 is specifically a card slot 222 opened to the outside. The latch slots 222 and the receiving holes 221 are in one-to-one correspondence, so that when the latch 234 and the latch slot 222 in the feeding assembly 23 are fitted, the material limiting chamber 2331 corresponds to the receiving hole 221. It should be noted that, in order to facilitate the grinding of the spring in the accommodating hole 221 by the grinding wheel, and to facilitate the downward pushing of the spring in the accommodating hole 221, the bottom of the rotating disc 22 is further provided with a base 21, and a part of the base plate is provided with an opening penetrating up and down relative to the accommodating hole 221 of the rotating disc 22, so that the lower end of the spring is exposed, so that the spring can move out from the lower side of the accommodating hole 221.
The rotating seat 26 is fixedly arranged at the center of the upper end face of the rotating disc 22, so that the feeding assembly 23 and the discharging assembly 25 can rotate around the center of the rotating disc 22, and a foundation is provided for the feeding assembly 23 and the discharging assembly 25 to rotate along with the rotating disc 22.
The feeding assembly 23 comprises a feeding base 231, a lifting seat 232, a material limiting seat 233 and a clamping block 234; the feeding base 231 is movably connected to the rotating seat 26; the lower extreme of lift seat 232 is connected on material loading base 231, and spacing seat is connected to the upper end of lift seat 232. The material limiting seat 233 is provided with a material limiting chamber 2331 leading to the accommodating hole 221, and the downward movement of the spring is limited by a material limiting cylinder communicated with the material limiting chamber 2331; it should be noted that, referring to fig. 5-6 of the specification, the limiting cylinder includes a first limiting cylinder 2332 and a second limiting cylinder 2333, and the first limiting cylinder 2332 is located above the second limiting cylinder 2333; the output end of the first limiting cylinder and the output end of the second limiting cylinder can be transversely arranged in the material limiting chamber 2331, and a space capable of containing a spring is arranged between the output ends of the first limiting cylinder and the second limiting cylinder. It should be noted that the material limiting seat 233 is further provided with a feeding pipe 24 in a connecting manner, one end of the feeding pipe 24 is connected to the vibration plate 3, and the other end of the feeding pipe 24 is communicated with the upper end of the material limiting chamber 2331, so that the spring in the vibration plate 3 moves into the material limiting chamber 2331.
The latch 234 is located above the slot 222, the latch 234 is capable of being engaged with the slot 222, and the latch 234 is connected with the material limiting seat 233, referring to fig. 4 of the specification. Wherein, the elevating seat 232 acts on the fixture block 234, and the material limiting seat 233 rotates along with the rotating disc 22 through the fixture block 234. It should be noted that the latch 234 is rotatable with respect to the material restriction seat 233. Preferably, the latch 234 is embodied as a rotatable pulley.
The blanking assembly 25, the blanking assembly 25 includes a blanking base 251, a blanking cylinder 252 and a push rod 253; one end of the blanking base 251 is movably connected to the rotating seat 26, and the other end of the blanking base 251 is fixedly connected with the blanking cylinder 252; wherein, the extension and contraction direction of the blanking cylinder 252 faces to the rotating base 26, and the output end of the blanking cylinder 252 is connected with a push rod 253, and the spring in the containing hole 221 is moved downwards by the push rod 253.
The working principle is as follows:
the vibrating disc 3 conveys the springs into the material limiting chamber 2331 along the feeding pipe 24 in sequence, the feeding assembly 23 can stably output one spring downwards each time based on the first material limiting cylinder 2332 and the second material limiting cylinder 2333, and after the lifting seat 232 enables the fixture block 234 to be clamped in the clamping groove 222 of the rotating disc 22, the material limiting seat 233 in the feeding assembly 23 moves along with the rotating disc 22, so that the springs can be stably placed into the containing hole 221 of the rotating disc 22; similarly, while the latch 234 is engaged with the catch 222, the push rod 253 of the blanking assembly 25 precisely acts in the receiving hole 221, so that the spring is pushed out downward.
The technical effects are as follows:
1. in the embodiment of the application, the rotating seat is constructed on the rotating disc, and the feeding assembly can rotate along with the rotating disc by utilizing the rotating seat; the clamping block is matched with the clamping groove, so that the material limiting cavity on the feeding assembly and the accommodating cavity on the rotating disc synchronously move, and the falling point of the spring moving downwards from the discharging cavity is conveniently located on the accommodating hole; the technical problem that feeding of the feeding assembly to the rotating disc is not accurate in the prior art is solved; the technical effect that the feeding assembly feeds materials to the rotating disc accurately is achieved.
2. In this application embodiment, through setting up the draw-in groove at the outside edge of rolling disc, the draw-in groove has an opening to the lateral surface in addition to in can be convenient when fixture block downstream put into the draw-in groove, on the other hand also guarantees that the fixture block can be smooth and easy withdraws from in the draw-in groove. Furthermore, the structure of the clamping block can be optimized, the rotatable clamping block is designed, and smooth contact between the clamping block and the clamping groove is ensured.
3. In this application embodiment, set up first spacing jar and second spacing jar and make a spring by the holding in interval between them to the spring is exported downwards that the material loading subassembly can be stable at every turn, avoids the spring to be died by unordered card in the material limiting cavity.
4. In the embodiment of the application, the blanking assembly is connected to the rotating seat, and the blanking assembly can follow the feeding assembly; the blanking assembly can also stably correspond to the containing hole in the rotating disc when the feeding assembly and the rotating seat follow up, so that the push rod can push materials accurately.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (9)

1. A four-channel loading and unloading mechanism of a spring grinding machine is characterized by being arranged between a spring grinding machine main body and a vibrating disc; the four-channel loading and unloading mechanism of the spring grinding machine comprises:
the upper circumference of the rotating disc is provided with a plurality of accommodating holes and a plurality of clamping grooves in a surrounding manner, and the accommodating holes can accommodate springs;
the rotating seat is fixedly arranged at the center of the upper end face of the rotating disc;
the feeding assembly comprises a feeding base, a lifting seat, a material limiting seat and a clamping block; the feeding base is movably connected to the rotating seat; the lower end of the lifting seat is connected to the feeding base, and the upper end of the lifting seat is connected to the limiting seat; the material limiting seat is provided with a material limiting cavity communicated with the containing hole, and the material limiting cavity is communicated with a material limiting cylinder to limit the downward movement of a spring; the clamping block is positioned above the clamping groove, the clamping block and the clamping groove can be clamped, and the clamping block is connected with the material limiting seat;
the lifting seat acts on the clamping block, and the material limiting seat rotates along with the rotating disc through the clamping block.
2. The four-channel loading and unloading mechanism of the spring grinding machine as claimed in claim 1, wherein the material limiting seat is further provided with a feeding pipe in a connected manner, and the feeding pipe is communicated with the upper end of the material limiting cavity so that the spring in the vibration disc moves into the material limiting cavity.
3. The four-channel loading and unloading mechanism of the spring grinding machine as claimed in claim 1, wherein the slot is located outside the accommodating hole, and the slot is specifically a slot open to the outside.
4. The four-channel loading and unloading mechanism of a spring grinding machine as claimed in claim 1, wherein the clamping grooves and the accommodating holes are in one-to-one correspondence, so that when the clamping blocks and the clamping grooves in the loading assembly are fitted, the material limiting cavities correspond to the accommodating holes.
5. The four-channel loading and unloading mechanism of a spring grinding machine as claimed in claim 1, wherein a base is further provided at the bottom of the rotating disc, and a part of the base plate is provided with an opening which is through up and down relative to the accommodating hole of the rotating disc.
6. The four-channel loading and unloading mechanism of the spring grinding machine as claimed in claim 1, wherein the material limiting cylinders comprise a first material limiting cylinder and a second material limiting cylinder, and the first material limiting cylinder is positioned above the second material limiting cylinder; the output end of the first limiting cylinder and the output end of the second limiting cylinder can be transversely arranged in the material limiting cavity, and a space capable of containing a spring is formed between the output end of the first limiting cylinder and the output end of the second limiting cylinder.
7. The four-channel loading and unloading mechanism of a spring grinding machine as claimed in claim 1, wherein the fixture blocks are rotatable relative to the material limiting seat.
8. The four-channel loading and unloading mechanism of a spring grinding machine as claimed in claim 7, wherein the fixture block is a rotatable pulley.
9. The four-channel loading and unloading mechanism of a spring grinding machine as claimed in claim 1, wherein the four-channel loading and unloading mechanism of the spring grinding machine further comprises:
the blanking assembly comprises a blanking base, a blanking cylinder and a push rod; one end of the blanking base is movably connected to the rotating seat, and the other end of the blanking base is fixedly connected with the blanking cylinder; the telescopic direction of the blanking cylinder faces the rotating seat, the output end of the blanking cylinder is connected with a push rod, and the spring located in the containing hole is enabled to move downwards through the push rod.
CN202120171696.XU 2021-01-20 2021-01-20 Four-channel feeding and discharging mechanism of spring grinding machine Active CN214323000U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120171696.XU CN214323000U (en) 2021-01-20 2021-01-20 Four-channel feeding and discharging mechanism of spring grinding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120171696.XU CN214323000U (en) 2021-01-20 2021-01-20 Four-channel feeding and discharging mechanism of spring grinding machine

Publications (1)

Publication Number Publication Date
CN214323000U true CN214323000U (en) 2021-10-01

Family

ID=77906038

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120171696.XU Active CN214323000U (en) 2021-01-20 2021-01-20 Four-channel feeding and discharging mechanism of spring grinding machine

Country Status (1)

Country Link
CN (1) CN214323000U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114633205A (en) * 2022-03-16 2022-06-17 日达智造科技(如皋)有限公司 Automatic grinding production system and processing method for material slices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114633205A (en) * 2022-03-16 2022-06-17 日达智造科技(如皋)有限公司 Automatic grinding production system and processing method for material slices
CN114633205B (en) * 2022-03-16 2023-09-05 日达智造科技(如皋)有限公司 Automatic grinding production system and processing method for material sheets

Similar Documents

Publication Publication Date Title
US20180339388A1 (en) Integrated rotary cutting tool manufacturing device and method
CN214323000U (en) Four-channel feeding and discharging mechanism of spring grinding machine
US4848005A (en) Rearrangeable supporting and positioning fixture, particularly for parts measurable on a gauging machine
CN106826230A (en) A kind of faucet valve core assembly machine
CN206382442U (en) A kind of full-automatic oiling riveter
CN101849190B (en) Insert, tray and electronic component testing apparatus
CN105458698A (en) Automatic assembly machine for locks
CN108306464A (en) A kind of kludge of the rotor assembly of brushless electronic water pump
CN206084362U (en) Iron clamp kludge
CN207926387U (en) A kind of kludge of the rotor assembly of brushless electronic water pump
CN205309760U (en) Automatic assembler
CN110480057B (en) Automatic drilling and pin pressing equipment for plunger pump swash plate
CN109263061A (en) Loudspeaker assembly jig handling device and loudspeaker Intelligent assembly equipment
CN205325152U (en) Automatic assembling machine
CN217114161U (en) Automatic assembling production line for keycaps of mechanical keyboards
CN215880705U (en) Multi-station automatic drilling and tapping equipment
CN210350975U (en) Built-in part array assembly machine
CN219097816U (en) Colloidal particle feeding assembly
CN205309759U (en) Tool to lock automatic assembly machine
CN108054401A (en) A kind of battery blanking mechanism and its battery pack installing are standby
US3583548A (en) Apparatus for handling miniature articles
CN216138452U (en) Automatic locking equipment for support
US4616410A (en) High speed lead socket assembly machine
CN112008372B (en) Press mounting device for bottom cover of lamp decoration button
CN219005513U (en) Plastic round piece inner hole polishing equipment

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant