CN115923072A - Cloth-sandwiched phenolic pipe processing method and equipment - Google Patents
Cloth-sandwiched phenolic pipe processing method and equipment Download PDFInfo
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- CN115923072A CN115923072A CN202211532027.6A CN202211532027A CN115923072A CN 115923072 A CN115923072 A CN 115923072A CN 202211532027 A CN202211532027 A CN 202211532027A CN 115923072 A CN115923072 A CN 115923072A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The invention discloses a processing method and equipment of a cloth-sandwiched phenolic pipe, which comprise a blowing mechanism, a first traction mechanism, a heating mechanism, an expansion shaping mechanism, a cooling mechanism and a second traction mechanism, wherein the blowing mechanism is used for blowing, expanding and shaping a pipe blank, the first traction mechanism and the second traction mechanism are both used for drawing and moving the pipe blank, the heating mechanism is used for heating the pipe blank to a stretching temperature, and the expansion shaping mechanism is matched with the blowing mechanism to shape the pipe blank.
Description
Technical Field
The invention relates to the technical field of production of cloth-sandwiched phenolic pipes, in particular to a method and equipment for processing the cloth-sandwiched phenolic pipes.
Background
The cloth-sandwiched phenolic pipe is made of phenolic resin as base material and high-strength fiber fabric as reinforcing material, and has the features of high mechanical strength, excellent friction performance, etc. The cloth-sandwiched phenolic tube is a product prepared by processing prepreg cloth, comprises a guide ring, a bushing, a bearing and the like, is widely applied to hydraulic transmission systems of various machines in the engineering machinery industry, the coal mine machinery industry, the hydraulic machinery industry and the like, and mainly plays a role in supporting and guiding.
The prior art still adopts an intermittent biaxial stretching method to produce the pipe, and has the problems of low speed and high cost.
Disclosure of Invention
The invention aims to provide a method and equipment for processing a cloth-sandwiched phenolic tube, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a press from both sides cloth phenolic aldehyde tubular product processing equipment, includes blowing mechanism, first drive mechanism, heating mechanism, expansion forming mechanism, cooling body and second drive mechanism, blowing mechanism is used for blowing the expansion shaping to the pipe first drive mechanism and second drive mechanism all are used for pulling the removal to tubular product, heating mechanism is used for heating the pipe to tensile temperature, expansion forming mechanism cooperation blowing mechanism stereotypes the pipe, cooling body is used for cooling to below the vitrification temperature with the observation after the expansion is stereotyped.
As a further scheme of the invention: the blowing mechanism comprises a blowing pipe, one end of the blowing pipe is connected with a right-angle machine head of the extruder, the other end of the blowing pipe is connected with a pipe distribution, and the pipe distribution extends into the expansion shaping mechanism.
As a still further scheme of the invention: first drive mechanism includes the support body, be provided with two sets of traction wheels on the support body, every group the traction wheel comprises two upper and lower traction rollers that distribute, the traction roller is driven by driving motor, two upper and lower there is the interval between the traction roller, the interval is used for running through the pipe blank, just second drive mechanism's structure is the same with first drive mechanism's structure.
As a still further scheme of the invention: the heating mechanism comprises a first rack, a cylindrical ceramic outer wire tube heater is arranged at the top end of the first rack, and a round hole used for penetrating through the tube blank is formed in the middle of an inner cavity of the ceramic outer wire tube heater.
As a still further scheme of the invention: expansion forming mechanism includes the bottom plate, the upper surface four corners department of bottom plate all is provided with the stand, the top of stand is provided with the roof, the upper surface of roof is provided with linear guide, two along heating mechanism's length direction be provided with between the linear guide can follow its length direction and carry out the fly leaf that removes, the upper surface both ends of fly leaf all are provided with the fixed plate, two one side is provided with the cylinder each other to the fixed plate, the piston rod of cylinder runs through fixed plate and fixedly connected with limiting plate, two the relative one side of limiting plate all is provided with the mould, two the relative one side of mould all is provided with the semicircular groove that is used for running through the pipe, and two be provided with between the fixed plate and be used for carrying out spacing limit structure to the limiting plate, the upper surface of bottom plate is provided with four evenly distributed regulation poles in order, four the top of adjusting the pole is provided with height-adjustable backup pad, the upper surface of backup pad is provided with and is used for driving the drive fly leaf to carry out the actuating mechanism that removes.
As a still further scheme of the invention: the limiting structure comprises two limiting rods, the two limiting rods are arranged at the diagonal positions of the fixing plate, the limiting plate is of a parallelogram structure, and sliding holes connected with the limiting rods in a sliding mode are formed in two diagonal positions of the limiting plate.
As a still further scheme of the invention: the utility model discloses a quick-witted support plate, including the backup pad, the regulation pole is adjusted the top of pole and is provided with diameter and through-hole assorted double-screw bolt, the through-hole is run through on the top of double-screw bolt, just the double-screw bolt is located the equal threaded connection in upper and lower both sides of backup pad and has the nut.
As a still further scheme of the invention: the driving mechanism comprises a motor installed on the upper surface of the supporting plate, a lead screw which is distributed in parallel with the linear guide rail is arranged in the middle of the upper surface of the top plate, two ends of the lead screw are rotatably connected with the top plate through bearings, the lead screw is connected with the motor through a belt transmission assembly, a threaded block which is in threaded connection with the lead screw is arranged in the middle of the bottom of the movable plate, and sliding blocks which are in sliding connection with the linear guide rail are arranged on two sides of the bottom of the movable plate.
As a still further scheme of the invention: the cooling mechanism comprises a second rack, a cooling water tank is arranged at the top end of the second rack, a plurality of partition plates which are distributed at equal intervals are arranged in the inner cavity of the cooling water tank along the length direction of the inner cavity, and round holes for penetrating through the pipes are formed in the two ends of the cooling water tank and the surface of each partition plate.
The invention also relates to a processing method of the cloth-sandwiched phenolic pipe processing equipment, which comprises the following steps:
s1, wrapping the pipe blank produced by an extruder on the outer sides of an air blowing pipe and a pipe distribution pipe, and drawing the pipe blank into a heating mechanism by a first drawing mechanism for heating;
s2, continuously moving the pipe blank forwards to an expansion shaping mechanism in the heating process, starting two cylinders to clamp the pipe blank between two molds, simultaneously starting an inflator pump to blow air to the air blowing pipes, so that the air blowing pipes blow air to the pipe arrangement, the pipe arrangement drives the pipe blank to expand, simultaneously starting a motor to enable the molds and the pipe blank to move forwards together, and after the molds and the pipe blank move to a certain position, the pipe arrangement deflates, and the motor rotates reversely, so that the molds move to the initial position to expand the next section of the pipe blank;
and S3, the expanded pipe enters a cooling water tank, is rapidly cooled to be below the glass transition temperature, and enters a second traction mechanism, so that the formed cloth-sandwiched phenolic pipe is obtained.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts a secondary expansion method, namely, a common extruder is used for producing a tube blank, then the tube blank is subjected to hoop stretching through the tube distribution, and the tube blank is subjected to axial stretching under the action of the expansion shaping mechanism, so that the hoop and axial properties of the cloth-sandwiched phenolic tube are improved, the practical value is high, and the problems of low speed and high cost existing in the prior art which still adopts an intermittent two-way stretching method are solved.
Drawings
Fig. 1 is a schematic structural diagram of a cloth-sandwiched phenolic pipe processing device.
Fig. 2 is a schematic structural diagram of an expansion shaping mechanism in a cloth-sandwiched phenolic pipe processing device.
Fig. 3 is a schematic structural view of fig. 2 from another view angle.
FIG. 4 is a side view of a ceramic outer wire tube heater in a cloth sandwiched phenolic tube processing apparatus.
Fig. 5 is a schematic structural diagram of a cooling water tank in a cloth-sandwiched phenolic pipe processing device.
In the figure: 1. an air blowing pipe; 2. a first traction mechanism; 3. a heating mechanism; 4. a first frame; 5. an expansion shaping mechanism; 6. a cooling mechanism; 7. a second frame; 8. a second traction mechanism; 9. a traction roller; 10. a column; 11. a top plate; 12. a linear guide rail; 13. a movable plate; 14. a fixing plate; 15. a cylinder; 16. a limiting plate; 17. a mold; 18. a limiting rod; 19. a support plate; 20. a motor; 21. adjusting a rod; 22. a stud; 23. a slider; 24. a screw rod; 25. a thread block; 26. a ceramic outer wire tube heater; 27. a cooling water tank; 28. a partition plate; 29. a base plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, in the embodiment of the present invention, a cloth-sandwiched phenolic pipe processing apparatus includes an air blowing mechanism, a first traction mechanism 2, a heating mechanism 3, an expansion shaping mechanism 5, a cooling mechanism 6, and a second traction mechanism 8, where the air blowing mechanism is configured to blow air to expand and shape a pipe blank, the air blowing mechanism includes an air blowing pipe 1, one end of the air blowing pipe 1 is connected to a right-angle head of an extruder, and the other end is connected to a pipe blank, the pipe blank extends into the expansion shaping mechanism 5, when the air blowing pipe 1 is blown by an air pump, the air blowing pipe 1 blows air to the pipe blank, and the pipe blank expands to form a round pipe shape, so as to expand and shape the pipe blank wrapped outside the pipe blank, the first traction mechanism 2 and the second traction mechanism 8 are both configured to pull the pipe blank, the first traction mechanism 2 includes a frame body, and two sets of traction wheels are disposed on the frame body, each group of traction wheels consists of an upper traction roller 9 and a lower traction roller 9 which are distributed, the traction rollers 9 are driven by a driving motor, a distance exists between the upper traction roller 9 and the lower traction roller 9, the distance is used for penetrating through the tube blank, the structure of a second traction mechanism 8 is the same as that of a first traction mechanism 2, the traction rollers 9 are driven by the driving motor to rotate, so that the tube blank advances, a heating mechanism 3 is used for heating the tube blank to a stretching temperature, the heating mechanism 3 comprises a first frame 4, a cylindrical ceramic outer wire tube heater 26 is arranged at the top end of the first frame 4, a round hole used for penetrating through the tube blank is arranged in the middle of an inner cavity of the ceramic outer wire tube heater 26, a resistance wire is wound outside a ceramic body, the tube blank is placed in the ceramic outer wire tube to be heated by air, the selected ceramic outer wire heating tube is 1m long and 80mm in inner diameter and is wound on the ceramic outer wire tube, and a heat preservation material is arranged outside the resistance wire, the outer part of the heating pipe is fixed by an iron sheet shell, the heating temperature can be accurately set by designing a corresponding temperature control system, in order to prevent the pipe from collapsing during heating, a heat-resistant PTFE plastic cushion block is arranged at the lower part in the heating pipe, and angle irons for placing the cushion block are welded on the heating pipe through flanges;
the expanding and shaping mechanism 5 is matched with the blowing mechanism to shape the tube blank, the expanding and shaping mechanism 5 comprises a bottom plate 29, stand columns 10 are arranged at four corners of the upper surface of the bottom plate 29, a top plate 11 is arranged at the top end of each stand column 10, linear guide rails 12 are arranged on the upper surface of each top plate 11 along the length direction of the heating mechanism 3, a movable plate 13 capable of moving along the length direction of each linear guide rail 12 is arranged between the two linear guide rails 12, fixed plates 14 are arranged at two ends of the upper surface of each movable plate 13, an air cylinder 15 is arranged at one side, far away from each other, of each fixed plate 14, a piston rod of each air cylinder 15 penetrates through the corresponding fixed plate 14 and is fixedly connected with a limiting plate 16, a mold 17 is arranged at one side, opposite to each mold 17, a semicircular groove for penetrating through the tube blank is arranged at one side, and a limiting structure for limiting the limiting plate 16 is arranged between the two fixed plates 14, the upper surface of the bottom plate 29 is provided with four adjusting rods 21 which are evenly and orderly distributed, the top ends of the four adjusting rods 21 are provided with supporting plates 19 with adjustable heights, the upper surface of the supporting plate 19 is provided with a driving mechanism for driving the movable plate 13 to move, the two dies 17 are enabled to move relatively by starting the air cylinder 15, so that the two dies 17 are combined together, a tube blank can penetrate through a semicircular groove between the two dies 17, the limiting structure comprises two limiting rods 18, the two limiting rods 18 are arranged at opposite corners of the fixed plate 14, the limiting plate 16 is in a parallelogram structure, sliding holes in sliding connection with the limiting rods 18 are arranged at two opposite corners of the limiting plate 16, a good limiting effect is achieved on the limiting plate 16 and the dies 17 by matching between the limiting rods 18 and the sliding holes, the structural stability is improved, and the four corners of the surface of the supporting plates 19 are provided with through holes, the top end of the adjusting rod 21 is provided with a stud 22 with a diameter matched with the through hole, the top end of the stud 22 penetrates through the through hole, nuts are respectively connected to the upper side and the lower side of the stud 22, which are positioned on the support plate 19, in a threaded manner, through the matching between the stud 22, the through hole and the nuts, the height of the support plate 19 is convenient to adjust, and therefore the tightness of the belt transmission assembly is convenient to flexibly adjust, the driving mechanism comprises a motor 20 installed on the upper surface of the support plate 19, a screw rod 24 which is distributed in parallel with the linear guide rail 12 is arranged in the middle of the upper surface of the top plate 11, two ends of the screw rod 24 are rotatably connected with the top plate 11 through bearings, the screw rod 24 is connected with the motor 20 through the belt transmission assembly, a thread block 25 which is in threaded connection with the screw rod 24 is arranged in the middle of the bottom of the movable plate 13, and sliding blocks 23 which are in sliding connection with the linear guide rail 12 are arranged on two sides of the bottom of the movable plate 13, the motor 20 is started, so that the screw rod 24 rotates under the action of the belt transmission assembly, the movable plate 13 is driven by the thread block 25 to move along the length direction of the screw rod 24, so that the pipe blank is driven by the die 17 to move, and the die 23 is matched with the linear guide rail 12, and the movable plate, thereby improving the limiting stability of the movable plate 13;
the cooling mechanism 6 is used for cooling observation after expansion and shaping to below the glass transition temperature, the cooling mechanism 6 comprises a second rack 7, a cooling water tank 27 is arranged at the top end of the second rack 7, a plurality of partition plates 28 which are distributed at equal intervals are arranged in the inner cavity of the cooling water tank 27 along the length direction of the inner cavity, round holes for penetrating through pipes are formed in the two ends of the cooling water tank 27 and the surface of each partition plate 28, four to six partition plates 28 are arranged in the cooling water tank 27 to maintain the temperature gradient and adjust the cooling speed, the cooling water tank 27 keeps a certain water level, cooling water enters from the last end, the water flow direction is opposite to the pipe movement direction, cooling is relaxed, internal stress is reduced, foam plastic wafers are arranged at the two ends of the cooling water tank 27, and a hole is formed in the center of the cooling water tank, so that the pipes can pass through the holes and water can not flow out.
The invention also relates to a processing method of the cloth-sandwiched phenolic tube processing equipment, which comprises the following steps:
s1, wrapping the pipe blank produced by an extruder on the outer sides of an air blowing pipe 1 and a pipe distribution pipe, and drawing the pipe blank into a heating mechanism 3 through a first drawing mechanism 2 for heating;
s2, continuously moving the pipe blank forwards to an expansion shaping mechanism 5 in the heating process, starting two cylinders 15, clamping the pipe blank between two molds 17, simultaneously starting an inflator pump to blow air to an air blowing pipe 1, so that the air blowing pipe 1 blows air to a pipe arrangement, the pipe arrangement drives the pipe blank to expand, simultaneously starting a motor 20, enabling the molds and the pipe blank to move forwards together, after moving to a certain position, discharging the air from the pipe arrangement, and enabling the motor 20 to rotate reversely, so that the molds 17 move to the initial position to expand the next section of the pipe blank;
and S3, the expanded pipe enters a cooling water tank 27 to be rapidly cooled to be below the glass transition temperature, and enters a second traction mechanism 8, so that the formed cloth-sandwiched phenolic pipe is obtained.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a press from both sides cloth phenolic aldehyde tubular product processing equipment, its characterized in that, includes blowing mechanism, first drive mechanism (2), heating mechanism (3), expansion forming mechanism (5), cooling mechanism (6) and second drive mechanism (8), blowing mechanism is used for blowing the expansion shaping to the pipe first drive mechanism (2) and second drive mechanism (8) all are used for pulling the removal to the pipe, heating mechanism (3) are used for heating the pipe to stretching temperature, expansion forming mechanism (5) cooperation blowing mechanism stereotypes the pipe, cooling mechanism (6) are used for cooling the observation after the expansion is stereotyped below the vitrification temperature.
2. The cloth-sandwiched phenolic tube processing equipment as claimed in claim 1, wherein the air blowing mechanism comprises an air blowing pipe (1), one end of the air blowing pipe (1) is connected with a right-angle head of the extruder, the other end of the air blowing pipe is connected with a cloth pipe, and the cloth pipe extends into the expansion shaping mechanism (5).
3. The cloth-sandwiched phenolic tube processing equipment as claimed in claim 1, wherein the first traction mechanism (2) comprises a frame body, two groups of traction wheels are arranged on the frame body, each group of traction wheels is composed of an upper traction roller (9) and a lower traction roller (9) which are distributed, the traction rollers (9) are driven by a driving motor, a space exists between the upper traction roller and the lower traction roller (9), the space is used for penetrating through a tube blank, and the structure of the second traction mechanism (8) is the same as that of the first traction mechanism (2).
4. The cloth-sandwiched phenolic tube processing equipment as claimed in claim 1, wherein the heating mechanism (3) comprises a first frame (4), a cylindrical ceramic outer wire tube heater (26) is arranged at the top end of the first frame (4), and a round hole for penetrating through a tube blank is arranged in the middle of an inner cavity of the ceramic outer wire tube heater (26).
5. The cloth-sandwiched phenolic tube processing equipment as recited in claim 1, the expansion shaping mechanism (5) comprises a bottom plate (29), the four corners of the upper surface of the bottom plate (29) are provided with upright posts (10), a top plate (11) is arranged at the top end of the upright post (10), linear guide rails (12) are arranged on the upper surface of the top plate (11) along the length direction of the heating mechanism (3), a movable plate (13) capable of moving along the length direction of the linear guide rails is arranged between the two linear guide rails (12), both ends of the upper surface of the movable plate (13) are provided with fixed plates (14), one side of each fixed plate (14) far away from each other is provided with a cylinder (15), a piston rod of the cylinder (15) penetrates through the fixing plate (14) and is fixedly connected with limiting plates (16), dies (17) are arranged on the opposite sides of the two limiting plates (16), semicircular grooves for penetrating through the tube blank are arranged on the opposite sides of the two dies (17), and a limiting structure for limiting the limiting plate (16) is arranged between the two fixing plates (14), the upper surface of the bottom plate (29) is provided with four adjusting rods (21) which are uniformly and orderly distributed, the top ends of the four adjusting rods (21) are provided with supporting plates (19) with adjustable height, the upper surface of the supporting plate (19) is provided with a driving mechanism for driving the movable plate (13) to move.
6. The cloth-sandwiched phenolic tube processing equipment as claimed in claim 5, wherein the limiting structure comprises two limiting rods (18), the two limiting rods (18) are mounted at opposite corners of the fixing plate (14), the limiting plate (16) is of a parallelogram structure, and sliding holes connected with the limiting rods (18) in a sliding manner are arranged at two opposite corners of the limiting plate (16).
7. The processing equipment for the cloth-sandwiched phenolic tube material as claimed in claim 5, wherein through holes are formed in four corners of the surface of the supporting plate (19), studs (22) with the diameter matched with that of the through holes are arranged at the top end of the adjusting rod (21), the top ends of the studs (22) penetrate through the through holes, and nuts are in threaded connection with the upper side and the lower side of the supporting plate (19) of the studs (22).
8. The cloth-sandwiched phenolic tube processing equipment as claimed in claim 5, wherein the driving mechanism comprises a motor (20) mounted on the upper surface of the supporting plate (19), a screw rod (24) distributed in parallel with the linear guide rail (12) is arranged in the middle of the upper surface of the top plate (11), two ends of the screw rod (24) are rotatably connected with the top plate (11) through bearings, the screw rod (24) is connected with the motor (20) through a belt transmission component, a threaded block (25) in threaded connection with the screw rod (24) is arranged in the middle of the bottom of the movable plate (13), and sliding blocks (23) in sliding connection with the linear guide rail (12) are arranged on two sides of the bottom of the movable plate (13).
9. The processing equipment for the cloth-sandwiched phenolic tube material as claimed in claim 1, wherein the cooling mechanism (6) comprises a second frame (7), a cooling water tank (27) is arranged at the top end of the second frame (7), a plurality of partition plates (28) are arranged in the inner cavity of the cooling water tank (27) along the length direction of the inner cavity, the partition plates are distributed at equal intervals, and round holes for penetrating through the tube material are formed in the two ends of the cooling water tank (27) and the surface of each partition plate (28).
10. A method of using the apparatus of any one of claims 1 to 9 to machine a cloth-sandwiched phenolic tubular product, comprising the steps of:
s1, wrapping the pipe blank produced by an extruder on the outer sides of an air blowing pipe (1) and a pipe distribution pipe, and drawing the pipe blank into a heating mechanism (3) through a first drawing mechanism (2) for heating;
s2, continuously moving the pipe blank forwards to an expansion shaping mechanism (5) in the heating process, starting two cylinders (15), clamping the pipe blank between two molds (17), simultaneously starting an inflator pump to blow air to an air blowing pipe (1), enabling the air blowing pipe (1) to blow air to a pipe distribution, driving the pipe blank to expand by the pipe distribution, simultaneously starting a motor (20), enabling the molds and the pipe blank to move forwards together, deflating the pipe distribution after moving to a certain position, and enabling the motor (20) to rotate reversely, so that the molds (17) move to the initial position to expand the next section of the pipe blank;
and S3, the expanded pipe enters a cooling water tank (27) to be rapidly cooled to be below the glass transition temperature, and enters a second traction mechanism (8), so that the formed cloth-sandwiched phenolic pipe is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211532027.6A CN115923072A (en) | 2022-12-01 | 2022-12-01 | Cloth-sandwiched phenolic pipe processing method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211532027.6A CN115923072A (en) | 2022-12-01 | 2022-12-01 | Cloth-sandwiched phenolic pipe processing method and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115923072A true CN115923072A (en) | 2023-04-07 |
Family
ID=86652013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211532027.6A Pending CN115923072A (en) | 2022-12-01 | 2022-12-01 | Cloth-sandwiched phenolic pipe processing method and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115923072A (en) |
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2022
- 2022-12-01 CN CN202211532027.6A patent/CN115923072A/en active Pending
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Address after: No. 128 Shenyu Road, Taozhuang Town, Jiashan County, Jiaxing City, Zhejiang Province, 314100 Applicant after: Zhejiang Jintai Sealing Technology Co.,Ltd. Address before: 314100 Taozhuang hardware characteristic industrial zone, Jiashan County, Jiaxing City, Zhejiang Province Applicant before: KINTOWE ENGINEERING PLASTIC CO.,LTD. |
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