CN113528796A - Roller heat treatment device for cotton spinning frame - Google Patents
Roller heat treatment device for cotton spinning frame Download PDFInfo
- Publication number
- CN113528796A CN113528796A CN202110620390.2A CN202110620390A CN113528796A CN 113528796 A CN113528796 A CN 113528796A CN 202110620390 A CN202110620390 A CN 202110620390A CN 113528796 A CN113528796 A CN 113528796A
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- frame
- heat treatment
- cooling tank
- treatment device
- gear
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/38—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a roller heat treatment device for a cotton spinning frame, which comprises a portal frame, a mounting seat and a water cooling tank, wherein a travelling crane frame is arranged on the portal frame, the lower end of a hydraulic telescopic rod is connected with a connecting rod, a supporting frame is arranged at the lower end of a top cover, a limiting cylinder is arranged on the supporting frame in a penetrating manner, a motor is arranged on the mounting seat, a first gear is arranged on a transmission shaft in a penetrating manner, a second gear is arranged on a rotating shaft in a penetrating manner, a first heating element is arranged at the bottom in a furnace body, the water cooling tank is arranged on the outer side of the furnace body, and an infusion pump is arranged on the outer side of the water cooling tank. This roller heat treatment device for cotton spinning frame drives the pivot through bevel gear group, transmission shaft, first gear, second gear and rotates under the effect of motor, and pivot and spacing section of thick bamboo block drive the clamping frame through spacing section of thick bamboo and rotate for the roller rotates, thermally equivalent, in addition under setting up first heating element and second heating element effect, improves roller quenching machining efficiency.
Description
Technical Field
The invention relates to the technical field related to roller processing for a cotton spinning frame, in particular to a roller heat treatment device for the cotton spinning frame.
Background
The roller for cotton spinning frame is a cylindrical rotary part with the functions of feeding, drafting and outputting in textile machinery, and is the transliteration of English word "roller" with the meaning of roller and shaft. The roller heat treatment device is widely used for mechanisms such as drafting, carding, conveying and the like, the roller needs to be subjected to heat treatment processing in the production and processing process, when a general roller processing heat treatment device is used for heating, the roller is unevenly heated, the heat treatment effect is influenced, the temperature of the roller after heat treatment is high, the roller is inconvenient to transfer and cool, the operation is troublesome, and the roller heat treatment device for the cotton spinning frame is needed to solve the problems.
Disclosure of Invention
The invention aims to provide a roller heat treatment device for a cotton spinning frame, which solves the problems that the roller is unevenly heated during heating of the general roller processing heat treatment device proposed in the background art, the heat treatment effect is influenced, the temperature of the roller after heat treatment is high, the roller is inconvenient to transfer and cool, and the operation is troublesome.
In order to achieve the purpose, the invention provides the following technical scheme: a roller heat treatment device for a cotton spinning frame, which comprises a portal frame, a mounting seat and a water cooling tank,
the gantry is provided with a travelling crane frame, a hydraulic telescopic rod penetrates through the travelling crane frame, the lower end of the hydraulic telescopic rod is connected with a connecting rod, the lower end of the connecting rod is connected with a top cover, the lower end of the top cover is provided with a supporting frame, a limiting cylinder penetrates through the supporting frame, and the upper end of the limiting cylinder is connected with a clamping frame;
the furnace body is characterized in that a motor is arranged on the mounting seat and is connected with a transmission shaft through a bevel gear set, a first gear penetrates through the transmission shaft and is meshed with a second gear, the second gear penetrates through a rotating shaft, the upper end of the rotating shaft penetrates through and is rotatably connected to the furnace body, a first heating element is arranged at the bottom in the furnace body, a second heating element is arranged on the inner side wall of the furnace body, and the furnace body is arranged below the portal frame;
the water-cooling tank is arranged on the outer side of the furnace body, a fan is arranged on the side face of the water-cooling tank, an infusion pump is arranged on the outer side of the water-cooling tank and is connected with an infusion tube, radiating fins are arranged on the side face of the infusion tube, and one end of the infusion tube, far away from the infusion pump, is connected with the water-cooling tank.
Preferably, the traveling crane frames are provided with two traveling crane frames, and each traveling crane frame is symmetrically provided with hydraulic telescopic rods.
Preferably, the hydraulic telescopic rod and the connecting rod form a telescopic mechanism, and the connecting rod is symmetrically arranged about the center line of the top cover.
Preferably, the limiting cylinders are distributed on the supporting frame in an annular array shape, and the supporting frame is rotatably connected with the limiting cylinders.
Preferably, the clamping frame comprises a first clamping plate, a screw rod, a second clamping plate and a protrusion, the inner wall of the clamping frame is provided with the first clamping plate, the screw rod penetrates through the side face of the clamping frame, the inner end of the screw rod is rotatably connected with the second clamping plate, and the inner wall of the second clamping plate and the inner wall of the first clamping plate are provided with the protrusion.
Preferably, be provided with two sets of archs in the holder, and every group arch evenly distributed respectively on second splint inner wall and first splint inner wall.
Preferably, the motor, the bevel gear set, the transmission shaft, the first gear, the second gear and the rotating shaft form a rotating mechanism.
Preferably, the water cooling tank comprises a filter screen layer, a temperature sensor and a controller, the filter screen layer is arranged on the inner wall of the water cooling tank, the temperature sensor is arranged on the water cooling tank in a penetrating mode, and the controller is arranged at the lower end of the water cooling tank.
Preferably, two infusion tubes are symmetrically arranged on the water cooling tank, radiating fins are arranged on each infusion tube in a staggered mode, and each infusion tube corresponds to one group of fans.
Compared with the prior art, the invention has the beneficial effects that: the roller heat treatment device for the cotton spinning frame,
(1) the supporting frame is provided with the limiting cylinders in an annular array, each limiting cylinder is correspondingly provided with the clamping frame, the heat treatment processing can be simultaneously carried out on the clamping of the plurality of rollers, the processing efficiency is improved, and in addition, the bulges uniformly arranged on the inner walls of the first clamping plate and the second clamping plate enhance the clamping stability of the rollers;
(2) when one travelling frame moves above the furnace body to carry out hoisting heat treatment on a batch of rollers, the other travelling frame can be used for installing and fixing the next batch of rollers, and after the previous batch of rollers are subjected to heat treatment, the travelling frame moves to the furnace body on the portal frame to carry out heat treatment on the batch of rollers, so that the continuity of the treatment is maintained, and the cooling time of the rollers subjected to the previous batch of heat treatment can be fully utilized;
(3) the rotating shaft is driven to rotate through the bevel gear set, the transmission shaft, the first gear and the second gear under the action of the motor, the rotating shaft is clamped with the limiting cylinder, the clamping frame is driven to rotate through the limiting cylinder, the roller rotates and is uniformly heated, and in addition, the heat treatment processing efficiency of the roller is improved under the action of the first heating element and the second heating element;
(4) under the temperature sensor effect that sets up, when detecting that the temperature in the water-cooling tank is higher than a definite value, through controller control transfer pump, with the coolant liquid suction of water-cooling tank in to the transfer line in, the fin increases the thermal diffusivity of cooling liquid in the transfer line, can improve cooling effect to transfer line and fin cooling under the effect of fan in addition, and the cooling liquid after the cooling is inputed the water-cooling tank once more in, keeps the water-cooling effect.
Drawings
FIG. 1 is a schematic structural view of a furnace body in elevation section according to the present invention;
FIG. 2 is a schematic top view of the spacing barrel and the clamping frame of the present invention;
FIG. 3 is a schematic view of a clamping frame according to the present invention;
FIG. 4 is a schematic view of a clamping structure of a limiting cylinder and a rotating shaft according to the present invention;
FIG. 5 is a schematic view of the front cross-sectional structure of the water cooling tank of the present invention;
FIG. 6 is a schematic left side view of the water cooling tank of the present invention;
fig. 7 is a schematic diagram of the work flow structure of the present invention.
In the figure: 1. the device comprises a portal frame, 2, a traveling crane frame, 3, a hydraulic telescopic rod, 4, a connecting rod, 5, a top cover, 6, a supporting frame, 7, a limiting cylinder, 8, a clamping frame, 801, a first clamping plate, 802, a screw rod, 803, a second clamping plate, 804, a protrusion, 9, a mounting seat, 10, a motor, 11, a bevel gear set, 12, a transmission shaft, 13, a first gear, 14, a second gear, 15, a rotating shaft, 16, a furnace body, 17, a first heating element, 18, a second heating element, 19, a water cooling box, 1901, a filter screen layer, 1902, a temperature sensor, 1903, a controller, 20, a fan, 21, an infusion pump, 22, an infusion tube, 23 and a cooling fin.
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. 1-7, the present invention provides a technical solution: a roller heat treatment device for a cotton spinning frame is disclosed, as shown in figure 1, figure 2 and figure 3, a travelling crane frame 2 is arranged on a portal frame 1, a hydraulic telescopic rod 3 is arranged on the travelling crane frame 2 in a penetrating way, two travelling crane frames 2 are arranged, the hydraulic telescopic rod 3 is symmetrically arranged on each travelling crane frame 2, the arrangement of the two travelling crane frames 2 is convenient for transferring and cooling a roller after heat treatment, and can carry out heat treatment processing on another batch of rollers when the roller is cooled, the lower end of the hydraulic telescopic rod 3 is connected with a connecting rod 4, the lower end of the connecting rod 4 is connected with a top cover 5, the hydraulic telescopic rod 3 and the connecting rod 4 form a telescopic mechanism, the connecting rod 4 is symmetrically arranged about the central line of the top cover 5, the connecting rod 4 is pushed under the action of the hydraulic telescopic rod 3, the height of the top cover 5 is adjusted, the roller is convenient to enter a furnace body 16 and a water cooling tank 19, the lower end of the top cover 5 is provided with a support frame 6, a limiting cylinder 7 is arranged on the supporting frame 6 in a penetrating manner, the upper end of the limiting cylinder 7 is connected with a clamping frame 8, the limiting cylinders 7 are distributed on the supporting frame 6 in an annular array manner, the supporting frame 6 is rotationally connected with the limiting cylinder 7, the limiting cylinder 7 corresponds to one clamping frame 8, the clamping frames 8 distributed on the supporting frame 6 in an annular array manner can clamp and fix a plurality of rollers for heat treatment, the clamping frame 8 comprises a first clamping plate 801, a screw 802, a second clamping plate 803 and a protrusion 804, the inner wall of the clamping frame 8 is provided with the first clamping plate 801, the side surface of the clamping frame 8 is provided with the screw 802 in a penetrating manner, the inner end of the screw 802 is rotationally connected with the second clamping plate 803, the second clamping plate 803 and the inner wall of the first clamping plate 801 are both provided with the protrusion 804, the screw 802 is screwed to push the second clamping plate 803 to be matched with the first clamping plate 801 for clamping and fixing the rollers, two groups of protrusions 804 are arranged in the clamping frame 8, and each group of protrusions 804 are respectively and uniformly distributed on the inner wall of the second clamping plate 803 and the inner wall of the first clamping plate 801, the protrusions 804 enhance stability to roller gripping.
As shown in fig. 1 and 4, a motor 10 is arranged on the mounting base 9, the motor 10 is connected with a transmission shaft 12 through a bevel gear set 11, the motor 10, the bevel gear set 11, the transmission shaft 12, a first gear 13, a second gear 14 and a rotating shaft 15 form a rotating mechanism, the roller is driven to rotate under the action of the motor 10, which is helpful for uniformity of roller heating, the first gear 13 is arranged on the transmission shaft 12 in a penetrating manner, the first gear 13 is connected with the second gear 14 in a meshing manner, the second gear 14 is arranged on the rotating shaft 15 in a penetrating manner, the upper end of the rotating shaft 15 is connected on a furnace body 16 in a penetrating manner, a first heating element 17 is arranged at the inner bottom of the furnace body 16, a second heating element 18 is arranged on the inner side wall of the furnace body 16, and the furnace body 16 is arranged below the portal frame 1.
As shown in fig. 1, 5, 6 and 7, the water cooling tank 19 is disposed outside the furnace body 16, a fan 20 is disposed on a side surface of the water cooling tank 19, the water cooling tank 19 includes a filter screen layer 1901, a temperature sensor 1902 and a controller 1903, the filter screen layer 1901 is disposed on an inner wall of the water cooling tank 19, the temperature sensor 1902 is disposed on the water cooling tank 19 in a penetrating manner, the controller 1903 is disposed at a lower end of the water cooling tank 19, when the temperature sensor 1902 detects that a temperature of the cooling liquid in the water cooling tank 19 is higher than a certain value, the controller 1903 controls the infusion pump 21 to pump the cooling liquid in the water cooling tank 19 into the infusion tubes 22 for heat dissipation and cooling, and then the infusion tubes are discharged into the water cooling tank 19, two infusion tubes 22 are symmetrically disposed on the water cooling tank 19, and cooling fins 23 are disposed on each infusion tube 22 in a staggered manner, and each infusion tube 22 corresponds to one group of fans 20, the cooling fins 23 enhance a cooling effect of the cooling liquid in the infusion tubes 22, an infusion pump 21 is arranged outside the water cooling tank 19, the infusion pump 21 is connected with an infusion tube 22, a radiating fin 23 is arranged on the side surface of the infusion tube 22, and one end of the infusion tube 22, far away from the infusion pump 21, is connected with the water cooling tank 19.
The working principle is as follows: when the roller heat treatment device for the cotton spinning frame is used, a power supply is switched on, the roller is placed on the left support frame 6 for clamping, one end of the roller is inserted into the clamping frame 8, the screw 802 is screwed, the screw 802 pushes the second clamping plate 803 to be matched with the first clamping plate 801 to clamp and fix the roller, the clamping stability is enhanced under the action of the protrusion 804, after the roller is arranged on the left support frame 6, the roller is lifted to a proper height under the action of the left hydraulic telescopic rod 3, the roller is moved to the upper part of the furnace body 16 through the left traveling frame 2, the roller is pushed into the furnace body 16 under the action of the hydraulic telescopic rod 3, the left limiting barrel 7 is connected with the rotating shaft 15 in a clamping way, the top cover 5 covers the upper end opening of the furnace body 16 in a sealing way, the heat treatment processing is carried out under the action of the first heating element 17 and the second heating element 18, the roller can be arranged on the right support frame 6, the motor 10 drives the transmission shaft 12 to rotate through the bevel gear set 11, the transmission shaft 12 drives the second gear 14 to rotate through the first gear 13, the second gear 14 drives the rotating shaft 15 to rotate, the rotating shaft 15 drives the limiting cylinder 7 to rotate, thereby driving the roller to rotate, so that the roller is heated uniformly, after heat treatment, the roller is kept for a period of time to be lifted, the roller after heat treatment is driven by the left travelling crane frame 2 to move to the upper part of the left water cooling tank 19, the roller is pushed into the water cooling tank 19, the roller clamped at the right side is driven by the travelling crane frame 2 at the right side to move to the upper part of the furnace body 16 at the moment, the roller is pushed into the furnace body 16 to be subjected to heat treatment, after the roller at the left side is cooled, the roller can be unloaded to prepare for next roller heat treatment, when the temperature sensor 1902 detects that the temperature of the cooling liquid in the water cooling tank 19 is higher than a certain value, the model of the temperature sensor 1902 is SDF-65, the infusion pump 21 is controlled by the controller 1903 to pump the cooling liquid in the water cooling tank 19 into the infusion tube 22, the cooling fins 23 enhance the heat dissipation of the cooling fluid in the fluid line 22 while enhancing the cooling of the cooling fins 23 and the fluid line 22 by the fan 20, which is not described in detail herein and is well known to those skilled in the art.
The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for simplicity of description only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be considered limiting of the claimed invention.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a roller heat treatment device for cotton spinning frame, includes portal frame (1), mount pad (9) and water-cooling tank (19), its characterized in that:
a travelling crane frame (2) is arranged on the portal frame (1), a hydraulic telescopic rod (3) penetrates through the travelling crane frame (2), the lower end of the hydraulic telescopic rod (3) is connected with a connecting rod (4), the lower end of the connecting rod (4) is connected with a top cover (5), a support frame (6) is arranged at the lower end of the top cover (5), a limiting cylinder (7) penetrates through the support frame (6), and the upper end of the limiting cylinder (7) is connected with a clamping frame (8);
the heating furnace is characterized in that a motor (10) is arranged on the mounting seat (9), the motor (10) is connected with a transmission shaft (12) through a bevel gear set (11), a first gear (13) penetrates through the transmission shaft (12), the first gear (13) is meshed and connected with a second gear (14), the second gear (14) penetrates through a rotating shaft (15), the upper end of the rotating shaft (15) penetrates through and is rotatably connected onto a furnace body (16), a first heating element (17) is arranged at the bottom in the furnace body (16), a second heating element (18) is arranged on the inner side wall of the furnace body (16), and meanwhile, the furnace body (16) is arranged below the portal frame (1);
the utility model discloses a stove, including stove body (16), water-cooling tank (19), and water-cooling tank (19) side is provided with fan (20), water-cooling tank (19) outside is provided with transfer pump (21), and transfer pump (21) are connected with transfer line (22), transfer line (22) side is provided with fin (23), and transfer line (22) keep away from transfer pump (21) one end and water-cooling tank (19) and are connected.
2. The roller heat treatment device for the cotton spinning frame according to claim 1, characterized in that: the traveling crane frame is characterized in that the number of the traveling crane frames (2) is two, and hydraulic telescopic rods (3) are symmetrically arranged on each traveling crane frame (2).
3. The roller heat treatment device for the cotton spinning frame according to claim 1, characterized in that: the hydraulic telescopic rod (3) and the connecting rod (4) form a telescopic mechanism, and the connecting rod (4) is symmetrically arranged about the center line of the top cover (5).
4. The roller heat treatment device for the cotton spinning frame according to claim 1, characterized in that: the limiting cylinders (7) are distributed on the supporting frame (6) in an annular array shape, and the supporting frame (6) is rotationally connected with the limiting cylinders (7).
5. The roller heat treatment device for the cotton spinning frame according to claim 1, characterized in that: the clamping frame (8) comprises a first clamping plate (801), a screw rod (802), a second clamping plate (803) and a protrusion (804), the first clamping plate (801) is arranged on the inner wall of the clamping frame (8), the screw rod (802) penetrates through the side face threads of the clamping frame (8), the inner end of the screw rod (802) is rotatably connected with the second clamping plate (803), and the protrusion (804) is arranged on the inner wall of the second clamping plate (803) and the inner wall of the first clamping plate (801).
6. The roller heat treatment device for the cotton spinning frame according to claim 5, characterized in that: two groups of bulges (804) are arranged in the clamping frame (8), and each group of bulges (804) are respectively and uniformly distributed on the inner wall of the second clamping plate (803) and the inner wall of the first clamping plate (801).
7. The roller heat treatment device for the cotton spinning frame according to claim 1, characterized in that: the motor (10), the bevel gear group (11), the transmission shaft (12), the first gear (13), the second gear (14) and the rotating shaft (15) form a rotating mechanism.
8. The roller heat treatment device for the cotton spinning frame according to claim 1, characterized in that: the water cooling tank (19) comprises a filter screen layer (1901), a temperature sensor (1902) and a controller (1903), wherein the filter screen layer (1901) is arranged on the inner wall of the water cooling tank (19), the temperature sensor (1902) penetrates through the water cooling tank (19), and the controller (1903) is arranged at the lower end of the water cooling tank (19).
9. The roller heat treatment device for the cotton spinning frame according to claim 1, characterized in that: two infusion tubes (22) are symmetrically arranged on the water cooling tank (19), radiating fins (23) are arranged on each infusion tube (22) in a staggered mode, and each infusion tube (22) corresponds to one group of fans (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110620390.2A CN113528796A (en) | 2021-06-03 | 2021-06-03 | Roller heat treatment device for cotton spinning frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110620390.2A CN113528796A (en) | 2021-06-03 | 2021-06-03 | Roller heat treatment device for cotton spinning frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113528796A true CN113528796A (en) | 2021-10-22 |
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ID=78095579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110620390.2A Pending CN113528796A (en) | 2021-06-03 | 2021-06-03 | Roller heat treatment device for cotton spinning frame |
Country Status (1)
| Country | Link |
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| CN (1) | CN113528796A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000284A (en) * | 2021-12-03 | 2022-02-01 | 建湖县新宇纺织有限公司 | Dyeing and drying integrated device for spinning production |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5976822A (en) * | 1982-10-25 | 1984-05-02 | Kawasaki Steel Corp | Immersing and hardening device of steel pipe |
| CN208440676U (en) * | 2018-05-30 | 2019-01-29 | 邢台金环轧辊有限公司 | A kind of roller quenching device |
| CN209322937U (en) * | 2019-01-03 | 2019-08-30 | 上海日炙机械制造有限公司 | A kind of quenching unit of gear |
-
2021
- 2021-06-03 CN CN202110620390.2A patent/CN113528796A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5976822A (en) * | 1982-10-25 | 1984-05-02 | Kawasaki Steel Corp | Immersing and hardening device of steel pipe |
| CN208440676U (en) * | 2018-05-30 | 2019-01-29 | 邢台金环轧辊有限公司 | A kind of roller quenching device |
| CN209322937U (en) * | 2019-01-03 | 2019-08-30 | 上海日炙机械制造有限公司 | A kind of quenching unit of gear |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000284A (en) * | 2021-12-03 | 2022-02-01 | 建湖县新宇纺织有限公司 | Dyeing and drying integrated device for spinning production |
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Application publication date: 20211022 |
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| RJ01 | Rejection of invention patent application after publication |