CN112157949A - Heating device for be used for mould production - Google Patents
Heating device for be used for mould production Download PDFInfo
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- CN112157949A CN112157949A CN202010924193.5A CN202010924193A CN112157949A CN 112157949 A CN112157949 A CN 112157949A CN 202010924193 A CN202010924193 A CN 202010924193A CN 112157949 A CN112157949 A CN 112157949A
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- heating box
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- pull frame
- clamping
- door plate
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 96
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims description 17
- 210000000988 bone and bone Anatomy 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/34—Heating or cooling presses or parts thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a heating device for die production, which comprises: the heating box is arranged on the rear side of the base, a door plate capable of being opened and closed is arranged on the front side of the heating box, a door plate opening and closing control mechanism for controlling the door plate to be opened and closed is arranged on the heating box, the push-pull frame is movably arranged in the heating box, the clamping and conveying mechanism is arranged on the push-pull frame and used for clamping and fixing a mold so that the mold can move in or out of the heating box along with the push-pull frame, the driving mechanism is used for driving and controlling the push-pull frame to move, the circulating hot air system is connected with an air inlet in the heating box through a pipeline, an air outlet in the heating box is connected with the circulating hot air system through a pipeline, and the circulating hot air system is used for supplying high-temperature gas into the heating box. The heating device has the advantages of good heating effect, simple and convenient operation and energy conservation.
Description
Technical Field
The invention relates to the technical field of molds, in particular to a heating device for mold production.
Background
The die is a tool for manufacturing a molded article, has a specific outline or an inner cavity shape, can enable a blank to obtain a corresponding three-dimensional shape by applying the inner cavity shape, and is widely applied to molding processing such as blanking, extrusion, pressure casting, injection molding and the like. However, the conventional mold heating device has problems of slow heating speed, poor heating effect, and the like.
Disclosure of Invention
In view of the above, the present invention provides a heating device for mold production to solve the above technical problems.
In order to achieve the purpose, the invention provides the following technical scheme: a heating device for mold production, comprising: the heating device comprises a base, a heating box, a push-pull frame, a clamping and conveying mechanism, a driving mechanism and a circulating hot air system, wherein the heating box is arranged on the rear side of the base, the front side of the heating box is provided with a door plate which can be opened and closed, the heating box is provided with a door plate opening and closing control mechanism which controls the door plate to be opened and closed, the push-pull frame is movably arranged in the heating box, the pinch mechanism is arranged on the push-pull frame, the clamping and conveying mechanism is used for clamping and fixing the mold so that the mold can move in or out of the heating box along with the push-pull frame, the driving mechanism is used for driving and controlling the push-pull frame to move, the circulating hot air system is connected with an air inlet on the heating box through a pipeline, and an air outlet on the heating box is connected with the circulating hot air system through a pipeline, and the circulating hot air system is used for supplying high-temperature gas into the heating box.
Furthermore, the clamping and conveying mechanism comprises a pair of clamping units which are symmetrically arranged, each clamping unit comprises a clamping arm, a lower sliding seat, an upper sliding seat, an elastic connecting rod and a limiting frame, the lower sliding seat is transversely arranged on the push-pull frame in a sliding mode, the clamping arms are connected to the lower sliding seats, the upper sliding seats are vertically arranged on the push-pull frame in a sliding mode, one ends of the elastic connecting rods are pivoted on the upper sliding seats, the other ends of the elastic connecting rods are pivoted on the lower sliding seats, the limiting frames are fixedly arranged on the inner wall of the heating box, guide grooves are formed in the limiting frames, one sides of the upper sliding seats are connected with driving rods matched with the guide grooves, and in the moving process of the push-pull frame, the guide grooves can guide the upper sliding seats to move up and down.
Furthermore, the guide groove comprises a first straight section, a transition bent section and a second straight section which are sequentially connected from front to back.
Furthermore, a transverse sliding rod extending along the horizontal direction is arranged on the push-pull frame, the lower sliding seat is sleeved on the transverse sliding rod in a sliding mode, a vertical sliding rod extending along the vertical direction is arranged on the push-pull frame, and the upper sliding seat is sleeved on the vertical sliding rod in a sliding mode.
Furthermore, a return spring is arranged between the pair of lower sliding seats, and the elastic connecting rod comprises an outer rod, an inner rod with one end arranged in an inner hole of the outer rod in a sliding manner, and a compression spring arranged between the outer rod and the inner rod.
Furthermore, the driving mechanism comprises a first lead screw, a first sliding block and a first motor, the first lead screw is rotatably arranged in the heating box, one end of the first lead screw extends out of the heating box and is connected with an output shaft of the first motor, the first sliding block is in threaded connection with the first lead screw, and the first sliding block is connected with the push-pull frame.
Furthermore, a pair of T-shaped guide rails is arranged on the front end face of the heating box in parallel, and T-shaped sliding grooves which are matched with the T-shaped guide rails in a one-to-one correspondence mode are arranged on the door plate.
Further, be provided with sealed recess on the preceding terminal surface of heating cabinet, install the sealing strip in the sealed recess, the sealing strip includes that body and first bone prop, the bellying of body front end can support and press on the door plant, the rear end of body is provided with a pair of supporting part, forms a cavity between the inboard of a pair of supporting part, first bone props to inlay and establishes in the cavity, the outside of a pair of supporting part supports respectively and presses on the inside wall of sealed recess.
Furthermore, the door plate opening and closing control mechanism comprises a second lead screw, a second sliding block and a second motor, the second lead screw is vertically and rotatably arranged on one side of the door plate, the second sliding block is in threaded connection with the second lead screw, the second sliding block is fixedly connected with the door plate, and an output shaft of the second motor is connected with one end of the second lead screw.
Furthermore, the top of base is provided with heavy groove, it is provided with a plurality of roller bearing to follow in the heavy groove the fore-and-aft direction of base rotates, the top of roller bearing stretches out heavy groove.
The technical scheme can show that the invention has the advantages that: the heating device has the advantages that after a mold is placed at the front side of the base, the driving mechanism drives the push-pull frame to move backwards, in the process of moving backwards of the push-pull frame, the clamping and conveying mechanism acts and clamps the mold on the mold, the mold is dragged into the heating box under the driving of the push-pull frame, then the door plate is closed, the circulating hot air system works to continuously supply high-temperature gas into the heating box to heat the mold in the heating box, after the heating is completed, the door plate is opened, the driving mechanism drives the push-pull frame to move forwards to convey the mold out of the heating box, and after the mold is completely conveyed out of the heating box, the clamping and conveying mechanism acts and releases the clamping of the mold.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
Fig. 1 is a right-view structural diagram of the present invention.
Fig. 2 is a rear view of the push-pull frame according to the present invention.
Fig. 3 is a front view of the push-pull frame according to the present invention.
Fig. 4 is an enlarged view of fig. 2 at H.
Fig. 5 is an enlarged view at I in fig. 1.
Fig. 6 is an enlarged view at J in fig. 5.
Fig. 7 is a schematic structural view of the spacing frame of the present invention.
List of reference numerals: the air conditioner comprises a base 1, a sink groove 11, a slot 12, a heating box 2, an air inlet 21, an air outlet 22, a T-shaped guide rail 23, a sealing groove 24, a sealing strip 25, a body 251, a protrusion 2511, a support 2512, a round protrusion 25121, a cavity 2513, a first bone support 252, an arc-bent portion 2521, a second bone support 253, a cylindrical portion 2531, a push-pull frame 3, a vertical plate portion 31, a sliding groove 311, a cross plate portion 32, a clamping mechanism 4, a clamping arm 41, a friction pad 42, a lower sliding seat 43, an upper sliding seat 44, a driving rod 441, a transverse sliding rod 45, a vertical sliding rod 46, an elastic connecting rod 47, an outer rod 471, an inner hole 4711, an inner rod 472, a compression spring 473, a return spring 48, a limiting frame 49, a guide groove 491, a first straight section 4911, a transition bent section 4912, a second straight section 4913, a driving mechanism 5, a first screw rod 51, a first slide block 52, a first motor 53, a circulating hot air, A second screw 81, a second slide block 82, a second motor 83, a roller 9 and a die 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
Referring to fig. 1 to 7, a heating device for mold production as shown in fig. 1 includes a base 1, a heating box 2, a push-pull frame 3, a clamping mechanism 4, a driving mechanism 5 and a circulating hot air system 6, the heating box 2 is disposed at the rear side of the base 1, a door plate 7 capable of being opened and closed is disposed at the front side of the heating box 2, a door plate opening and closing control mechanism 8 for controlling the opening and closing of the door plate 7 is disposed on the heating box 2, the push-pull frame 3 is movably disposed in the heating box 2, the clamping mechanism 4 is disposed on the push-pull frame 3, the clamping mechanism 4 is used for clamping and fixing the mold 10 so that the mold 10 can be moved into or out of the heating box 2 along with the push-pull frame 3, the driving mechanism 5 is used for driving and controlling the movement of the push-pull frame 3, the circulating hot air system 6 is connected with an air inlet 21 on the heating box 2 through a pipeline, an air, the circulating hot air system 6 is used to supply high-temperature gas into the heating box 2.
In this embodiment, the air inlet 21 is disposed at the upper portion of the front side of the heating box 2, and the air outlet 22 is disposed at the lower portion of the rear side of the heating box 2, so that the hot air can sufficiently heat the mold 10, and the heating effect is better.
As shown in fig. 1, the push-pull frame 3 includes a vertical plate portion 31 and a horizontal plate portion 32 connected to and disposed at the top of the vertical plate portion 31, the driving mechanism 5 includes a first lead screw 51, a first slider 52 and a first motor 53, the first lead screw 51 is rotatably disposed at the top inside the heating box 2, the rear end of the first lead screw 51 extends out of the heating box 2 and is connected to an output shaft of the first motor 53, the first slider 52 is threadedly connected to the first lead screw 51, the first slider 52 is fixedly connected to the horizontal plate portion 32 of the push-pull frame 3, and when the first lead screw 51 is driven by the first motor 53 to rotate, the first lead screw 51 drives the push-pull frame 3 to move forward or backward through the first slider 52.
As shown in fig. 2, 3 and 4, the pinch mechanism 4 includes a pair of clamping units symmetrically disposed left and right, each clamping unit includes a clamping arm 41, a lower sliding seat 43, an upper sliding seat 44, an elastic connecting rod 47 and a limiting frame 49, a horizontal sliding rod 45 extending along a horizontal direction is disposed on a rear side of the vertical plate portion 31, the lower sliding seat 43 is slidably sleeved on the horizontal sliding rod 45, a pair of vertical sliding rods 46 extending along a vertical direction is symmetrically disposed at a bottom of the horizontal plate portion 32, the upper sliding seat 44 is slidably sleeved on the vertical sliding rod 46 on a corresponding side, the clamping arm 41 passes through a sliding slot 311 on the vertical plate portion 31 to be connected with the lower sliding seat 43, a return spring 48 is disposed between the pair of lower sliding seats 43, the return spring 48 is sleeved on the horizontal sliding rod 45, the elastic connecting rod 47 includes an outer rod 471, an inner rod 472 whose lower end is slidably disposed in an inner hole 4711 of the outer rod 471 and a compression spring 473 disposed between the outer, the upper end of the inner rod 472 is pivoted on the upper slide seat 44, the lower end of the outer rod 471 is pivoted on the lower slide seat 43, the limiting frame 49 is fixedly arranged on the inner wall of the heating box 2, the limiting frame 49 is provided with a guide groove 491, the guide groove 491 comprises a first straight section 4911, a transition bending section 4912 and a second straight section 4913 which are sequentially connected from front to back, one side of the upper slide seat 44 is connected with a driving rod 441 matched with the guide groove 491, so when the push-pull frame 3 moves backwards, the driving rods 441 of a pair of clamping units respectively move in the corresponding first straight section 4911, then the pair of driving rods 441 respectively drive the corresponding upper slide seats 44 to move downwards under the guidance of the transition bending section 4912, and then the pair of upper slide seats 44 respectively drive the corresponding lower slide seats 43 to move transversely through the corresponding elastic connecting rods 47, so that the pair of clamping arms 41 are close to each other and clamped on the mold 10, and further when the push-pull frame, the push-pull frame 3 can drive the mold 10 to move into the heating box 2, when the push-pull frame 3 moves forward, the driving rods 441 of the pair of clamping units respectively move in the corresponding second straight sections 4913, after the mold 10 is completely pushed out of the heating box 2, the pair of driving rods 441 move to the transition bending sections 4912, and respectively drive the corresponding upper sliding seats 44 to move upwards under the guidance of the transition bending sections 4912, and then the pair of upper sliding seats 44 respectively drive the corresponding lower sliding seats 43 to move transversely through the corresponding elastic connecting rods 47, so that the pair of clamping arms 41 are far away from each other, clamping fixation on the mold 10 is released, the arrangement of the elastic connecting rods 47 enables the clamping force between the pair of clamping arms 41 to be adjustable, and the mold 10 can be prevented from being damaged through flexible clamping.
In this embodiment, a friction pad 42 is provided on the inner side of the chucking arm 41 to increase the frictional force.
As shown in fig. 1 and 5, a pair of T-shaped guide rails 23 are arranged in parallel on the front end surface of the heating box 2, the pair of T-shaped guide rails 23 are respectively located on two sides of the front opening of the heating box 2, a pair of T-shaped chutes that are in one-to-one correspondence with the pair of T-shaped guide rails 23 are arranged on the back side of the door plate 7, the door plate opening and closing control mechanism 8 includes a second lead screw 81, a second slider 82 and a second motor 83, the second lead screw 81 is vertically and rotatably arranged on one side of the door plate 7, the second slider 82 is in threaded connection with the second lead screw 81, the second slider 82 is fixedly connected with the door plate 7, an output shaft of the second motor 83 is connected with the upper end of the second lead screw 81, when the second lead screw 81 is driven by the second motor 83 to rotate, the second lead screw 81 drives the door plate 7 to ascend or descend through the second slider 82, and when the door.
As shown in fig. 5 and 6, a sealing groove 24 is provided on the front end surface of the heating box 2, a sealing strip 25 is installed in the sealing groove 24, the sealing strip 25 includes a body 251, and a protruding portion 2511 at the front end of the body 251 can be pressed against the door panel 7.
In this embodiment, the sealing strip 25 further includes a first bone strut 252, the rear end of the body 251 is provided with a pair of supporting portions 2512, a cavity 2513 is formed between the inner sides of the pair of supporting portions 2512, the first bone strut 252 is embedded in the cavity 2513, the arc-bent portions 2521 at the two ends of the first bone strut 252 respectively press against the inner sides of the circular convex portions 25121 of the pair of supporting portions 2512, so that the outer sides of the circular convex portions 25121 of the pair of supporting portions 2512 respectively tightly press against the inner side walls of the sealing groove 24, and the sealing strip 25 can be effectively prevented from falling off from the sealing groove 24.
As shown in fig. 1, in order to reduce the friction force between the mold 10 and the base 1 when the mold 10 moves, a sinking groove 11 is formed in the top of the base 1, a plurality of rollers 9 are rotatably arranged in the sinking groove 11 along the front-back direction of the base 1, the top of each roller 9 extends out of the sinking groove 11, and the mold 10 is placed on the rollers 9.
As shown in fig. 1, in use, the door plate 7 is opened initially, the push-pull frame 3 is located at the front side of the heating box 2, after the mold 10 is placed at the front side of the base 1, the driving mechanism 5 drives the push-pull frame 3 to move backward, the clamping mechanism 4 acts and clamps on the mold 10 in the process of moving backward of the push-pull frame 3, the mold 10 is dragged into the heating box 2 under the driving of the push-pull frame 3, then the door plate 7 is closed, the circulating hot air system 6 works to continuously supply high-temperature gas into the heating box 2 to heat the mold 10 in the heating box 2, after heating is completed, the door plate 7 is opened, the driving mechanism 5 drives the push-pull frame 3 to move forward to convey the mold 10 out of the heating box 2, and after the mold 10 is completely conveyed out of the heating box 2, the clamping mechanism 4 acts and releases the clamping of the mold 10. The heating device for producing the die has the advantages of good heating effect, simple and convenient operation and energy conservation.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A heating device for mold production, comprising: the heating box comprises a base (1), a heating box (2), a push-pull frame (3), a clamping and conveying mechanism (4), a driving mechanism (5) and a circulating hot air system (6), wherein the heating box (2) is arranged on the rear side of the base (1), a door plate (7) capable of being opened and closed is arranged on the front side of the heating box (2), a door plate opening and closing control mechanism (8) for controlling the door plate (7) to be opened and closed is arranged on the heating box (2), the push-pull frame (3) is movably arranged in the heating box (2), the clamping and conveying mechanism (4) is arranged on the push-pull frame (3), the clamping and conveying mechanism (4) is used for clamping and fixing a mold (10) so that the mold (10) can move in or out of the heating box (2) along with the push-pull frame (3), the driving mechanism (5) is used for driving and controlling the movement of the push-pull frame (3), and the circulating hot air system (6) is connected with an air inlet (21) on the heating box (, an air outlet (22) on the heating box (2) is connected with the circulating hot air system (6) through a pipeline, and the circulating hot air system (6) is used for supplying high-temperature gas into the heating box (2).
2. The heating device for mold production according to claim 1, wherein the clamping mechanism (4) comprises a pair of symmetrically arranged clamping units, the clamping units comprise a clamping arm (41), a lower sliding seat (43), an upper sliding seat (44), an elastic connecting rod (47) and a limiting frame (49), the lower sliding seat (43) is transversely slidably arranged on the push-pull frame (3), the clamping arm (41) is connected to the lower sliding seat (43), the upper sliding seat (44) is vertically slidably arranged on the push-pull frame (3), one end of the elastic connecting rod (47) is pivotally connected to the upper sliding seat (44), the other end of the elastic connecting rod (47) is pivotally connected to the lower sliding seat (43), the limiting frame (49) is fixedly arranged on the inner wall of the heating box (2), and a guide groove (491) is arranged on the limiting frame (49), one side of the upper sliding seat (44) is connected with a driving rod (441) matched with the guide groove (491), and the guide groove (491) can guide the upper sliding seat (44) to move up and down in the moving process of the push-pull frame (3).
3. The heating device for mold production according to claim 2, wherein the guiding groove (491) comprises a first straight section (4911), a transition curved section (4912) and a second straight section (4913) which are connected in series from front to back.
4. The heating device for mold production according to claim 3, wherein the push-pull frame (3) is provided with a horizontal sliding rod (45) extending along a horizontal direction, the lower sliding base (43) is slidably sleeved on the horizontal sliding rod (45), the push-pull frame (3) is provided with a vertical sliding rod (46) extending along a vertical direction, and the upper sliding base (44) is slidably sleeved on the vertical sliding rod (46).
5. The heating device for mold production according to claim 4, wherein a return spring (48) is provided between a pair of lower slides (43), and the elastic link (47) comprises an outer rod (471), an inner rod (472) having one end slidably disposed in an inner hole (4711) of the outer rod (471), and a compression spring (473) disposed between the outer rod (471) and the inner rod (472).
6. The heating device for mold production according to claim 5, wherein the driving mechanism (5) comprises a first lead screw (51), a first slide block (52) and a first motor (53), the first lead screw (51) is rotatably arranged in the heating box (2), one end of the first lead screw (51) extends out of the heating box (2) and is connected with an output shaft of the first motor (53), the first slide block (52) is in threaded connection with the first lead screw (51), and the first slide block (52) is connected with the push-pull frame (3).
7. The heating device for mold production according to claim 2, wherein a pair of T-shaped guide rails (23) are arranged in parallel on the front end face of the heating box (2), and T-shaped sliding grooves which are matched with the T-shaped guide rails (23) in a one-to-one correspondence manner are arranged on the door plate (7).
8. The heating device for mold production according to claim 7, wherein a sealing groove (24) is formed in the front end face of the heating box (2), a sealing strip (25) is installed in the sealing groove (24), the sealing strip (25) comprises a body (251) and a first bone strut (252), a protruding portion (2511) at the front end of the body (251) can be pressed on the door plate (7), a pair of supporting portions (2512) is arranged at the rear end of the body (251), a cavity (2513) is formed between the inner sides of the pair of supporting portions (2512), the first bone strut (252) is embedded in the cavity (2513), and the outer sides of the pair of supporting portions (2512) are respectively pressed on the inner side walls of the sealing groove (24).
9. The heating device for mold production according to claim 8, wherein the door plate opening and closing control mechanism (8) comprises a second lead screw (81), a second sliding block (82) and a second motor (83), the second lead screw (81) is vertically and rotatably arranged on one side of the door plate (7), the second sliding block (82) is in threaded connection with the second lead screw (81), the second sliding block (82) is fixedly connected with the door plate (7), and an output shaft of the second motor (83) is connected with one end of the second lead screw (81).
10. The heating device for mold production according to claim 1, wherein a sinking groove (11) is formed in the top of the base (1), a plurality of rollers (9) are rotatably arranged in the sinking groove (11) along the front-back direction of the base (1), and the tops of the rollers (9) extend out of the sinking groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010924193.5A CN112157949B (en) | 2020-09-04 | 2020-09-04 | Heating device for be used for mould production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010924193.5A CN112157949B (en) | 2020-09-04 | 2020-09-04 | Heating device for be used for mould production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112157949A true CN112157949A (en) | 2021-01-01 |
| CN112157949B CN112157949B (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010924193.5A Active CN112157949B (en) | 2020-09-04 | 2020-09-04 | Heating device for be used for mould production |
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| CN (1) | CN112157949B (en) |
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| CN115254559A (en) * | 2022-08-05 | 2022-11-01 | 浙江荣泰科技企业有限公司 | Rotor heating equipment for insulating varnish inspection |
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|---|---|---|---|---|
| CN115254559A (en) * | 2022-08-05 | 2022-11-01 | 浙江荣泰科技企业有限公司 | Rotor heating equipment for insulating varnish inspection |
| CN115254559B (en) * | 2022-08-05 | 2024-03-01 | 浙江荣泰科技企业有限公司 | Rotor heating equipment for insulating paint inspection |
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| Publication number | Publication date |
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| CN112157949B (en) | 2022-05-24 |
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Effective date of registration: 20221124 Address after: 230000 B-2704, wo Yuan Garden, 81 Ganquan Road, Shushan District, Hefei, Anhui. Patentee after: HEFEI LONGZHI ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Address before: 325000 No. 1 Incubator Building, Science Park, Wenzhou National University, No. 38 Dongfangnan Road, Ouhai Economic Development Zone, Wenzhou City, Zhejiang Province Patentee before: WENZHOU VOCATIONAL & TECHNICAL College |
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Effective date of registration: 20221227 Address after: No. 388, Liudong Group, Jiulong Village, Xiaojinkou Street, Huicheng District, Huizhou City, Guangdong Province, 516000 Patentee after: HUIZHOU GEWEI PRECISION PLASTIC & METAL MANUFACTURING Co.,Ltd. Address before: 230000 B-2704, wo Yuan Garden, 81 Ganquan Road, Shushan District, Hefei, Anhui. Patentee before: HEFEI LONGZHI ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. |
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