CN111017564A - Pneumatic powder feeding and uniformly distributing device and machining method thereof - Google Patents
Pneumatic powder feeding and uniformly distributing device and machining method thereof Download PDFInfo
- Publication number
- CN111017564A CN111017564A CN201911384516.XA CN201911384516A CN111017564A CN 111017564 A CN111017564 A CN 111017564A CN 201911384516 A CN201911384516 A CN 201911384516A CN 111017564 A CN111017564 A CN 111017564A
- Authority
- CN
- China
- Prior art keywords
- powder
- distributor body
- pneumatic
- distributing device
- inlet
- 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.)
- Granted
Links
- 239000000843 powder Substances 0.000 title claims abstract description 222
- 238000003754 machining Methods 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 5
- 238000003672 processing method Methods 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 15
- 238000009828 non-uniform distribution Methods 0.000 abstract description 2
- 239000000654 additive Substances 0.000 description 8
- 230000000996 additive effect Effects 0.000 description 8
- 238000005253 cladding Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004372 laser cladding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/06—Gas pressure systems operating without fluidisation of the materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/42—Nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention relates to a pneumatic powder feeding and distributing device, provides a pneumatic powder feeding and uniformly distributing device and a processing method thereof, and solves the problem of nonuniform distribution of the conventional powder distributing device. The device comprises a powder distributor body, wherein a circular powder inlet is formed in the center of one end face of the powder distributor body, N powder outlets uniformly distributed along the same circumference are formed in the other end face of the powder distributor body, and N is a positive integer greater than or equal to 2; the N powder outlets are in the shape of a sector with the same cross section shape and size, the size of the circle formed by splicing the N sectors is the same as that of the cross section of the circular powder inlet, and the sector angle of each sector is 360 degrees/N; the N powder outlets are respectively communicated with the powder inlet through N fan-shaped channels with the same shape as the N powder outlets. The device adopts the principle of physical area sharing, and evenly divides the area of the powder inlet into N equal areas so as to achieve the purpose of evenly dividing the material.
Description
Technical Field
The invention relates to a pneumatic powder feeding and distributing device, in particular to a pneumatic powder feeding and uniformly distributing device and a processing method thereof.
Background
In the laser additive machining process, an additive powder is generally supplied by a pneumatic powder feeding device, and the additive powder is subjected to laser machining to be clad on the surface of a base material to form an additive. In the material increase process, the powder feeding uniformity plays a key role in improving the surface quality after material increase and the quality of the base material and powder bonding layer.
The method is characterized in that a coaxial annular laser cladding head is generally used for cladding and material increasing processing, powder is firstly fed by a pneumatic powder feeder and then divided into a plurality of parts by a pneumatic powder feeding and distributing device, the powder of the plurality of parts is converged by the annular cladding head to form powder spots coaxial with light spots, and then the powder spots are clad on a substrate after laser processing to form material increasing processing. However, the powder feeding and distributing device adopts a volumetric powder distributor, one end surface of the volumetric powder distributor is provided with a powder inlet, the other end surface of the volumetric powder distributor is provided with a plurality of powder outlets, additive powder in a cavity of the powder distributor is pneumatically conveyed out of the powder outlets, and the volumetric powder distributor reduces the gas pressure, so that the unstressed state of the powder is changed, particularly the suspension state is changed under the influence of gravity, the uneven meteorological suspension state is formed, the powder distribution uniformity is influenced, and the quality of the processed additive is further influenced.
Disclosure of Invention
The invention provides a pneumatic powder feeding and uniformly distributing device and a processing method thereof, and aims to solve the technical problem of nonuniform distribution of an existing powder distributing device.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the utility model provides a pneumatic powder feeding even feed divider which characterized in that: the powder distributor comprises a powder distributor body, wherein a circular powder inlet is formed in the center of one end face of the powder distributor body, N powder outlets uniformly distributed along the same circumference are formed in the other end face of the powder distributor body, and N is a positive integer greater than or equal to 2; the N powder outlets are in the shape of a sector with the same cross section shape and size, the size of the circle formed by splicing the N sectors is the same as that of the cross section of the circular powder inlet, and the sector angle of each sector is 360 degrees/N; the N powder outlets are respectively communicated with the powder inlet through N fan-shaped channels with the same shape as the N powder outlets.
Furthermore, the powder distributor also comprises an upper cover arranged on one end face of the powder distributor body and a lower cover arranged on the other end face of the powder distributor body; the upper cover and the lower cover are both connected with the powder distributor body in a sealing way; the upper cover is provided with a powder inlet through hole and an air inlet movable joint, the air inlet movable joint is arranged at the powder inlet through hole, and one end of the air inlet movable joint is communicated with the circular powder inlet; the lower cover is provided with N powder outlet through holes with uniformly distributed circumference and N air outlet connectors, the N powder outlet through holes correspond to the N powder outlet positions, the N air outlet connectors are respectively arranged at the N powder outlet through holes, and one end of each air outlet connector is communicated with the powder outlet.
Further, N is 2, 3, 4, 5, 6.
Further, an upper sealing ring is arranged between the powder distributor body and the upper cover;
and a lower sealing ring is arranged between the powder distributor body and the lower cover.
Further, the powder distributor body is a cylinder.
Further, the powder distributor body is formed by one-time processing of wire cutting.
Meanwhile, the invention provides a processing method of the pneumatic powder feeding and uniformly distributing device, which is characterized by comprising the following steps of:
1) processing the powder divider body;
2) on the online cutting equipment, a graph to be processed is designed by taking the center of one end face of the powder distributor body as the center of a circle, and the graph is a fan shape divided by N equal parts in the same circle;
3) and respectively processing N fan-shaped channels penetrating through two end faces of the powder distributor body for N times by using a linear cutting processing mode, wherein an included angle exists between the central line of each fan-shaped channel and the central axis of the powder distributor body, one end of each fan-shaped channel is arranged at the fan-shaped part of N equal parts at one end of the powder distributor body, and the other ends of the fan-shaped channels are uniformly distributed on the same circumference of the other end face of the powder distributor body.
Compared with the prior art, the invention has the advantages that:
according to the material distributing device, the circular powder inlet and the plurality of powder outlets are respectively designed on two end faces of the powder distributing device body, the fan-shaped channel between each powder outlet and the circular powder inlet is used as a powder feeding channel of additive powder, the area of a powder inlet (the circular powder inlet) is uniformly divided into N equal areas (the fan-shaped powder outlets) by adopting a physical area sharing principle, N material channels with equal area division are arranged, powder materials can be uniformly divided into N equal parts, and the additive powder is fed through the N fan-shaped channels, so that the purpose of uniformly distributing the material is achieved.
Drawings
FIG. 1 is a schematic structural view of a first embodiment of a pneumatic powder feeding and uniformly distributing device of the invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a right side view of FIG. 1;
FIG. 4 is an exploded view of a first embodiment of the pneumatic powder feeding and uniformly distributing device of the invention;
FIG. 5 is a schematic perspective view of a powder distributor body in an embodiment of the pneumatic powder feeding and uniformly distributing device of the invention;
FIG. 6 is a first schematic structural diagram of a powder distributor body in a first embodiment of the pneumatic powder feeding and uniformly distributing device of the invention;
FIG. 7 is a schematic structural view of a powder distributor body in the first embodiment of the pneumatic powder feeding and uniformly distributing device of the invention;
FIG. 8 is a third schematic structural view of a powder distributor body in the first embodiment of the pneumatic powder feeding and uniformly distributing device of the invention;
FIG. 9 is a schematic view of the combination of 3 powder outlets and powder inlets in the first embodiment of the pneumatic powder feeding and uniformly distributing device of the invention;
FIG. 10 is a schematic structural view (end face with powder outlet) of a powder distributor body in a second embodiment of the pneumatic powder feeding and uniformly distributing device of the invention;
FIG. 11 is a schematic structural view of a powder distributor body (with a powder outlet end face) in a third embodiment of the pneumatic powder feeding and uniformly distributing device of the invention;
wherein the reference numbers are as follows:
the powder distributor comprises a 1-air movable joint, a 2-lower cover, a 21-powder outlet through hole, a 3-lower sealing ring, a 4-powder distributor body, a 41-circular powder inlet, a 42-powder outlet, a 43-fan-shaped channel, a 5-upper sealing ring, a 6-upper cover, a 61-powder inlet through hole, a 7-screw and an 8-air movable joint.
Detailed Description
The invention is described in further detail below with reference to the figures and specific embodiments.
Example one
As shown in fig. 1 to 9, a pneumatic powder feeding and uniformly distributing device comprises a powder distributor body 4, wherein the powder distributor body 4 is a cylinder, the powder distributor body is a device for directly and uniformly distributing powder conveyed from a powder feeding pipe, a circular powder inlet 41 is formed in the center of one end surface of the powder distributor body 4, 3 powder outlets 42 uniformly distributed along the same circumference are formed in the other end surface of the powder distributor body, 3 powder outlets 42 are in the shape of a sector with the same cross section and size, the size of the circular spliced 3 sectors is the same as that of the circular powder inlet 41, the angle of each sector is 120 degrees, and the 3 powder outlets 42 are respectively communicated with the powder inlets through 3 sector passages 43 with the same shape; the sum of the cross sectional areas of the 3 powder inlets is equal to the cross sectional area of the powder inlet, the 3 fan-shaped channels form a circle overlapped with the circular powder inlet 41 at the powder inlet, the distributing device adopts the physical area sharing principle, the powder inlet area is uniformly divided into 3 equal areas, 3 material channels with equal areas are arranged, the powder material can be uniformly divided into 3 equal areas, and the purpose of uniformly distributing the powder material is achieved.
The material distributing device of the embodiment further comprises an upper cover 6 arranged on one end face of the powder distributor body 4 and a lower cover 2 arranged on the other end face of the powder distributor body 4, wherein the upper cover 6 and the lower cover 2 are hermetically connected with the powder distributor body 4; specifically, the upper cover 6 is provided with 3 through holes which are uniformly distributed along the same circumference, 3 threaded holes which are matched with the through holes are formed in one end face of the powder distributor body 4 along the circumferential direction, an upper sealing ring 5 is arranged between the powder distributor body 4 and the upper cover 6, the upper cover 6 is fixed on one end face of the powder distributor body 4 by sequentially penetrating through the through holes of the upper cover 6 and the threaded holes in one end face of the powder distributor body 4 through screws 7, the upper cover 6 is provided with a powder inlet through hole 61 and an air inlet pneumatic connector 8, the air inlet pneumatic connector 8 is arranged at the powder inlet through hole 61, and one end of the air inlet pneumatic connector 8 is communicated with the circular powder inlet 41; the lower cover 2 is provided with 3 through holes which are uniformly distributed in the circumference, the other end surface of the powder distributor body 4 is provided with 3 threaded holes which are matched with the through holes along the circumference direction, a lower sealing ring 3 is arranged between the powder distributor body 4 and the lower cover 2, and the lower cover 2 is fixed on the other end surface of the powder distributor body 4 by a screw 7 which sequentially passes through the through holes of the lower cover 2 and the threaded holes on the other end surface of the powder distributor body 4; be provided with 3 circumference equipartition on the lower cover 2 and go out powder through-hole 21 and 3 pneumatic connector 1, 3 go out powder through-hole 21 and 3 go out powder mouth 42 position corresponding, and the cross sectional area who goes out powder through-hole 21 should be greater than the cross sectional area of fan-shaped powder mouth 42, 3 pneumatic connector 1 sets up respectively in 3 play powder through-hole 21 departments, and the one end and the play powder mouth 42 intercommunication of pneumatic connector 1 of giving vent to anger.
The powder distributor body 4 in the distributing device of the embodiment is formed by one-time processing through linear cutting; sealing rings are arranged between the powder distributor body 4 and the upper cover 6 and between the powder distributor body 4 and the lower cover 2 to seal the powder feeding gas.
Meanwhile, the embodiment provides a processing method of the pneumatic powder feeding and uniformly distributing device, which comprises the following steps:
1) processing the powder divider body 4;
2) on the online cutting equipment, a graph to be processed is designed by taking the center of one end face of the powder distributor body 4 as the center of a circle, and the graph is a fan shape divided equally by the same circle 3;
3) 3 fan-shaped passages 43 penetrating through two end faces of the powder distributor body 4 are respectively machined for 3 times in a linear cutting machining mode, an included angle exists between the central line of each fan-shaped passage 43 and the central axis of the powder distributor body 4, one end of each 3 fan-shaped passage 43 is located at a fan-shaped part which is 3 equal parts of one end of the powder distributor body 4, the circular size of one spliced end of each 3 fan-shaped passages is the same as the cross section shape of the circular powder inlet 41, and the other ends of the 3 fan-shaped passages 43 are uniformly distributed on the same circumference of the other end face of the powder distributor body 4.
Example two
The difference from the embodiment is that: as shown in fig. 10, the other end surface of the powder distributor body 4 in the pneumatic powder feeding and uniformly distributing device is provided with 5 powder outlets 42 uniformly distributed along the same circumference; the fan-shaped angle of the powder outlet 42 is 72 degrees.
The processing method of the pneumatic powder feeding and uniformly distributing device comprises the step 3), 5 fan-shaped channels 43 penetrating through two end faces of the powder distributor body 4 are respectively processed for 5 times in a linear cutting processing mode.
EXAMPLE III
The difference from the embodiment is that: as shown in fig. 11, the other end surface of the powder distributor body 4 in the pneumatic powder feeding and uniformly distributing device is provided with 6 powder outlets 42 uniformly distributed along the same circumference; the fan-shaped angle of the powder outlet 42 is 60 degrees.
The processing method of the pneumatic powder feeding and uniformly distributing device comprises the step 3), in a linear cutting processing mode, 6 fan-shaped channels 43 penetrating through two end faces of the powder distributor body 4 are processed for 6 times respectively.
The above description is only for the purpose of describing the preferred embodiments of the present invention and does not limit the technical solutions of the present invention, and any known modifications made by those skilled in the art based on the main technical concepts of the present invention fall within the technical scope of the present invention.
Claims (7)
1. The utility model provides a pneumatic even feed divider of powder that send which characterized in that: the powder distributor comprises a powder distributor body (4), wherein a circular powder inlet (41) is formed in the center of one end face of the powder distributor body (4), N powder outlets (42) which are uniformly distributed along the same circumference are formed in the other end face of the powder distributor body, and N is a positive integer which is more than or equal to 2;
the N powder outlets (42) are sectors with the same cross section shape and size, the size of the circle formed by splicing the N sectors is the same as that of the cross section of the circular powder inlet (41), and the sector angle of each sector is 360 DEG/N;
the N powder outlets (42) are respectively communicated with the powder inlet through N fan-shaped channels (43) with the same shape as the powder outlets.
2. The pneumatic powder feeding and uniformly distributing device of claim 1, which is characterized in that: the powder distributor also comprises an upper cover (6) arranged on one end face of the powder distributor body (4) and a lower cover (2) arranged on the other end face of the powder distributor body (4);
the upper cover (6) and the lower cover (2) are hermetically connected with the powder distributor body (4);
the upper cover (6) is provided with a powder inlet through hole (61) and an air inlet pneumatic joint (8), the air inlet pneumatic joint (8) is arranged at the powder inlet through hole (61), and one end of the air inlet pneumatic joint (8) is communicated with the circular powder inlet (41);
be provided with powder through-hole (21) and N of a plurality of circumference equipartition on lower cover (2) and give vent to anger movable joint (1), N are given vent to anger powder through-hole (21) and N and are gone out powder mouth (42) position corresponding, and N are given vent to anger movable joint (1) and set up respectively in N and are gone out powder through-hole (21) department, and the one end of giving vent to anger movable joint (1) and go out powder mouth (42) intercommunication.
3. The pneumatic powder feeding and uniformly distributing device of claim 2, which is characterized in that: and N is 2, 3, 4, 5 and 6.
4. The pneumatic powder feeding and uniformly distributing device of claim 3, wherein: an upper sealing ring (5) is arranged between the powder distributor body (4) and the upper cover (6);
and a lower sealing ring (3) is arranged between the powder distributor body (4) and the lower cover (2).
5. The pneumatic powder feeding and uniformly distributing device of claim 4, wherein: the powder distributor body (4) is a cylinder.
6. The pneumatic powder feeding and uniformly distributing device of claim 5, wherein: the powder distributor body (4) is formed by one-time processing of linear cutting.
7. The processing method of the pneumatic powder feeding and uniformly distributing device is characterized by comprising the following steps of:
1) processing the powder divider body (4);
2) on the online cutting equipment, a graph to be processed is designed by taking the center of one end face of the powder distributor body (4) as the circle center, and the graph is a fan shape divided by N equal parts in the same circle;
3) the method is characterized in that N fan-shaped channels (43) penetrating through two end faces of a powder distributor body (4) are machined for N times respectively in a linear cutting machining mode, an included angle exists between the central line of each fan-shaped channel (43) and the central axis of the powder distributor body (4) during machining, one end of each fan-shaped channel (43) is located at the fan-shaped part of the powder distributor body (4) at the N equal division position at one end of the powder distributor body, and the other ends of the fan-shaped channels are uniformly distributed on the same circumference of the other end face of the powder distributor body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384516.XA CN111017564B (en) | 2019-12-28 | 2019-12-28 | A pneumatic powder feeding and uniform material distribution device and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384516.XA CN111017564B (en) | 2019-12-28 | 2019-12-28 | A pneumatic powder feeding and uniform material distribution device and its processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111017564A true CN111017564A (en) | 2020-04-17 |
| CN111017564B CN111017564B (en) | 2025-02-14 |
Family
ID=70194956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911384516.XA Active CN111017564B (en) | 2019-12-28 | 2019-12-28 | A pneumatic powder feeding and uniform material distribution device and its processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111017564B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111733415A (en) * | 2020-07-07 | 2020-10-02 | 宁波中物力拓超微材料有限公司 | Powder distributor, processing method thereof and laser cladding device |
| CN115976510A (en) * | 2022-12-28 | 2023-04-18 | 广东电网有限责任公司江门供电局 | Pneumatic powder feeding and uniformly mixing integrated powder separating device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10035622A1 (en) * | 2000-07-21 | 2002-02-07 | Precitec Kg | Powder coating head used for coating surface of workpiece comprises central channel, conical powder channel, powder feeding devices opening into inlet region of powder channel, and gas feeding devices |
| CN201144283Y (en) * | 2007-12-25 | 2008-11-05 | 天津三星电子有限公司 | Powder current divider for pneumatic coaxial powder feeding |
| CN101342640A (en) * | 2007-07-11 | 2009-01-14 | 中国科学院沈阳自动化研究所 | Coaxial powder feeding system for preparation of functionally graded materials by laser rapid prototyping |
| CN203999818U (en) * | 2014-07-31 | 2014-12-10 | 苏州大学 | A kind of laser wide-band cladding inner-light powder-supplying device |
| CN211733133U (en) * | 2019-12-28 | 2020-10-23 | 西安必盛激光科技有限公司 | A pneumatic powder feeding device for uniform distribution |
-
2019
- 2019-12-28 CN CN201911384516.XA patent/CN111017564B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10035622A1 (en) * | 2000-07-21 | 2002-02-07 | Precitec Kg | Powder coating head used for coating surface of workpiece comprises central channel, conical powder channel, powder feeding devices opening into inlet region of powder channel, and gas feeding devices |
| CN101342640A (en) * | 2007-07-11 | 2009-01-14 | 中国科学院沈阳自动化研究所 | Coaxial powder feeding system for preparation of functionally graded materials by laser rapid prototyping |
| CN201144283Y (en) * | 2007-12-25 | 2008-11-05 | 天津三星电子有限公司 | Powder current divider for pneumatic coaxial powder feeding |
| CN203999818U (en) * | 2014-07-31 | 2014-12-10 | 苏州大学 | A kind of laser wide-band cladding inner-light powder-supplying device |
| CN211733133U (en) * | 2019-12-28 | 2020-10-23 | 西安必盛激光科技有限公司 | A pneumatic powder feeding device for uniform distribution |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111733415A (en) * | 2020-07-07 | 2020-10-02 | 宁波中物力拓超微材料有限公司 | Powder distributor, processing method thereof and laser cladding device |
| CN115976510A (en) * | 2022-12-28 | 2023-04-18 | 广东电网有限责任公司江门供电局 | Pneumatic powder feeding and uniformly mixing integrated powder separating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111017564B (en) | 2025-02-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4280801A (en) | Crosshead | |
| CN111017564A (en) | Pneumatic powder feeding and uniformly distributing device and machining method thereof | |
| US3860686A (en) | Method of and apparatus for extruding plastic materials | |
| US4076477A (en) | Multiple extrusion apparatus | |
| CN204673990U (en) | A kind of single wall heat-shrinkable T bush extrudes no-mould adjusted tool | |
| GB2110158A (en) | An extruder head for sheathing steel pipes with tubular thermoplastic adhesive and protective layers | |
| US5723157A (en) | Extrusion head for producing hose- or pipe-shaped preforms from extrudable plastics | |
| CN108097956A (en) | Large complicated gradient function component laser direct writing powder mixture ratio dynamic dust feeder and process equipment | |
| CN211416178U (en) | Three-layer co-extrusion machine head | |
| CN107252938A (en) | A kind of Complex Different Shape channel design Electrolyzed Processing Special tooling clamp and processing method | |
| CN211733133U (en) | A pneumatic powder feeding device for uniform distribution | |
| CN210148500U (en) | Segmented vulcanization mold for sealing element | |
| GB1437175A (en) | Record presses | |
| CN203765995U (en) | Nano laminate compound extrusion equipment | |
| CN205326231U (en) | Concentricity exempts from to transfer trombone slide formula mould | |
| CN103895208B (en) | Nano lamination composite extrusion equipment | |
| CN204701100U (en) | Cable jacket identification strip polychrome note bar mould | |
| CN108422636B (en) | Adjustable color bar extrusion molding machine head | |
| US2511986A (en) | Apparatus for extruding organic plastic material | |
| CN216860543U (en) | Shunt material flow channel extrusion die structure | |
| US3690806A (en) | Extrusion die head with reversed-flow and adjustable-choke structure | |
| CN110065212B (en) | Multilayer die head mechanism capable of changing structure of extruded pipe | |
| CN210510281U (en) | Rotary sealing device for molding drum case | |
| US2740989A (en) | Extruders | |
| CN204076769U (en) | Rubber tube processing die sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |