CN204108865U - A kind of pressure head and use the press-moulding die of this pressure head - Google Patents
A kind of pressure head and use the press-moulding die of this pressure head Download PDFInfo
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- CN204108865U CN204108865U CN201420421527.7U CN201420421527U CN204108865U CN 204108865 U CN204108865 U CN 204108865U CN 201420421527 U CN201420421527 U CN 201420421527U CN 204108865 U CN204108865 U CN 204108865U
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- pressure head
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Abstract
The utility model relates to pressure head and uses the press-moulding die of this pressure head, press-moulding die comprises seaming chuck and push-down head, each pressure head includes pressure head body, one end of pressure head body has and is pressed into profile for pushing up the top being pressed into moulding mixture, wherein at least one pressure head is special-shaped pressure head, the shape that the top of special-shaped pressure head is pressed into profile is identical with the shape that described emery wheel saves the special-shaped side face of block, the pressure head block that the pressure head body of special-shaped pressure head is arranged by least two splits of the axial order layout saving block along emery wheel is formed, the top that the upper surface of each pressure head block forms described special-shaped pressure head is together pressed into profile, adjacent two pressure head blocks respectively corresponding described emery wheel save the different radial thickness of block.The utility model provide a kind of can conservation when compressing to the emery wheel of special-shaped section joint block, the controlled pressure head of emery wheel joint block each position density can also be realized simultaneously and use the press-moulding die of this pressure head.
Description
Technical field
The utility model relates to a kind of pressure head and uses the press-moulding die of this pressure head.
Background technology
Emery wheel comprises grinding wheel base body and is fixedly arranged on the grinding layer on grinding wheel base body, grinding layer generally, sintering repressed, dry by super hard abrasive forms, the drawing method of grinding layer is divided into integral pressing method and piecemeal drawing method, integral pressing method is applicable to the less grinding layer of size, and piecemeal drawing method is applicable to larger-size grinding layer.Piecemeal drawing method suppresses separately after being divided into by grinding layer some emery wheels to save block, and each emery wheel joint block is spliced into an annular grinding layer after suppressing separately again.In prior art, the method for emery wheel joint block compacting is divided into along grinding wheel spindle to compacting with along the compacting of emery wheel radial direction.
Make the upper and lower pressure head of finger exert pressure to make loose molding mass be shaped to the base substrate with some strength along the axial of emery wheel to molding mass along grinding wheel spindle to compacting.Along grinding wheel spindle to the direction of exerting pressure of upper and lower pressure head and the axis being parallel of emery wheel in compacting, in order to avoid frictional force during shaping compacting is on the impact of emery wheel joint block density uniformity, it is not use during too thick emery wheel joint block is suppressed which is mainly used in axial width, such as uses when the axial width of emery wheel joint block is below the twice of its radial thickness.
Along the compacting of emery wheel radial direction, the upper and lower pressure head of finger being exerted pressure to molding mass along the radial direction of emery wheel makes loose molding mass be shaped to the base substrate with some strength, and it is not use in too thick emery wheel joint block compacting that this drawing method is mainly used in radial thickness.Existing a kind of press-moulding die along using in the compacting of emery wheel radial direction is " super-abrasive grinding wheel working lining joint block radial direction press-moulding die " disclosed in Chinese patent CN201645343U, this mould comprises die cavity and upper, push-down head, the bottom surface of seaming chuck is the concave surface with grinding layer outer peripheral face adaptation, the end face of push-down head is the convex surface with grinding layer inner peripheral surface adaptation, concave surface, convex surface is be pressed into profile for pushing up the top being pressed into moulding mixture, during use, mould suppresses an emery wheel joint block at every turn, last more each emery wheel joint block is spliced into an annular grinding layer.Existing this mould Problems existing is: existing mould compares and is applicable to the uniform grinding layer of radial thickness, and be not too applicable to the grinding layer with section of some radial thickness inequalities, such as in recent years, in the bent axle of automobile engine and camshaft processing, occurred following an example grinding in cut-in type local, i.e. packaging type composite grinding, the grinding layer of emery wheel needs the cylindrical of the workpiece of grinding simultaneously, circular arc and side, therefore the section configuration of the grinding layer of emery wheel be the thick polymorphic structure in thin both sides, middle part as shown in Figure 1, the inner peripheral surface of grinding layer 2 is special-shaped side face in irregular shape.In figure, 1 represents grinding wheel base body.
For this grinding layer with section, the specification of moulding process and be rationally the important step ensureing grinding layer density and structural homogenity, the complexity of grinding layer shape proposes more harsh requirement to abrasive wheel forming and sintering reasonability, this grinding layer with section due to grinding wheel diameter larger, axial width and radial thickness ratio are comparatively large and be difficult to adopt overall pressing mode and axial pressing mode, so the piecemeal pressing mode of radial compacting need be adopted, there is following shortcoming in this radial pressing mode: 1, the emery wheel joint block of regular shape first can only be suppressed during radial compacting, and then emery wheel is saved block and is processed into special shape by secondary operations, this can cause undoubtedly the waste of abrasive material and production efficiency low, the waste of abrasive material and secondary operations can considerably increase the cost of manufacture in emery wheel manufacture process, the radial thickness of the emery wheel joint block of the regular shape 2, first processed is thicker, and Density Distribution is uneven diametrically to cause emery wheel to save block, easily crackle is there is in sintering procedure, the yield rate of emery wheel is low, also can not be guaranteed the service life of emery wheel simultaneously, and the moulding mixture density of the thinner position of secondary operations special-shaped side face is out much smaller than the moulding mixture density of emery wheel joint block outer peripheral face, this can reduce the service life of emery wheel joint block greatly.
Utility model content
The purpose of this utility model be to provide a kind of can conservation when compressing to the emery wheel joint block of special-shaped section, the pressure head that emery wheel joint block each position density is controlled can also be realized simultaneously; The purpose of this utility model is also to provide a kind of press-moulding die and the briquetting process that use this pressure head.
In order to solve the problem, in the utility model, the technical scheme of pressure head is:
Pressure head, comprise pressure head body, one end of pressure head body has and is pressed into profile for pushing up the top being pressed into moulding mixture, the shape that described top is pressed into profile is identical with the shape that described emery wheel saves the special-shaped side face of block, the pressure head block that at least two splits that described pressure head body is arranged by the axial order saving block along emery wheel are arranged is formed, the upper surface of each pressure head block forms described top together and is pressed into profile, and adjacent two pressure head blocks respectively corresponding described emery wheel save the different radial thickness of block.
In the utility model, the technical scheme of press-moulding die is:
Press-moulding die, comprise seaming chuck and push-down head, each pressure head includes pressure head body, one end of pressure head body has and is pressed into profile for pushing up the top being pressed into moulding mixture, wherein at least one pressure head is special-shaped pressure head, the shape that the top of special-shaped pressure head is pressed into profile is identical with the shape that described emery wheel saves the special-shaped side face of block, the pressure head block that the pressure head body of special-shaped pressure head is arranged by least two splits of the axial order layout saving block along emery wheel is formed, the top that the upper surface of each pressure head block forms described special-shaped pressure head is together pressed into profile, adjacent two pressure head blocks respectively corresponding described emery wheel save the different radial thickness of block.
The beneficial effects of the utility model are: at least one pressure head in the utility model is special-shaped pressure head, the shape that the top of special-shaped pressure head is pressed into profile is identical with the shape that described emery wheel saves the special-shaped side face of block, therefore emery wheel can be made to save the special-shaped side face one-shot forming of block, do not need follow-up secondary operations, greatly save abrasive material and also improve production efficiency simultaneously, and the pressure head block that special-shaped pressure head is arranged by least two splits is formed, the different radial thickness of different pressure head blocks corresponding emery wheel joint block, when suppressing molding mass, the different emery wheel joint block realizing different radial thickness place of pressing stroke that can control each pressure head block obtains different density, thus ensure that the density at the emery wheel joint each position of block with special-shaped section all meets the requirements, the emery wheel joint block that final acquisition is qualified.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model background technology medium plain emery wheel;
Fig. 2 is the using state figure of an embodiment of press-moulding die in the utility model;
Fig. 3 is that the A-A of Fig. 2 is to sectional view;
Fig. 4 be in the utility model upper and lower pressure head to the compacting schematic diagram of first part of molding mass;
Fig. 5 is schematic diagram when dropping into second part of molding mass in the utility model in die cavity;
Fig. 6 be in the utility model compressing upper and lower pressure head to the compacting schematic diagram of first part of molding mass, second part of molding mass.
Fig. 7 is the structural representation of the push-down head in an embodiment of press-moulding die in the utility model;
Fig. 8 is the left view of Fig. 7;
Fig. 9 is the structural representation of required compacting emery wheel joint block in the utility model.
Detailed description of the invention
The embodiment of press-moulding die is as shown in Fig. 2 ~ 9: the structure of the emery wheel joint block of required compacting in the utility model as shown in Figure 9, the outer peripheral face of emery wheel joint block 10 is the cylindroid of regular shape, the inner peripheral surface of emery wheel joint block 10 is special-shaped side face in irregular shape, the interior thickness of emery wheel joint block is thinner, the thickness of axial both sides is thicker, abnormal shape in the utility model is for the cylindroid of regular shape, and shape is not that the cylindroid of rule is called abnormal shape.
The structure of press-moulding die is as shown in Fig. 2 ~ 8: comprise die cavity 4, seaming chuck 7 and push-down head, each pressure head includes pressure head body, one end of pressure head body has and is pressed into profile for pushing up the top being pressed into moulding mixture, in the present embodiment, push-down head is special-shaped pressure head, the shape that the top of special-shaped pressure head is pressed into profile is identical with the shape that emery wheel saves the special-shaped side face of block, the pressure head block that the pressure head body of special-shaped pressure head is arranged by three splits of the axial order layout saving block along emery wheel is formed, the top that the upper surface of each pressure head block forms special-shaped pressure head is together pressed into profile, adjacent two pressure head blocks respectively corresponding emery wheel save the different radial thickness of block, in the present embodiment, position lean in pressure head block be called the second pressure head block 6, the region that in the middle part of second pressure head block 6 corresponding emery wheel joint block, radial thickness is thinner, the pressure head block that position is positioned at both sides is called the first pressure head block 3, the region that first pressure head block corresponding emery wheel joint block both sides radial thickness is thicker.In the present embodiment, seaming chuck is identical with the structure of die cavity with seaming chuck of the prior art with the structure of die cavity, is not described in detail in this.
In use, because each pressure head block is that split is arranged, so each pressure head block can asynchronous movement, when compressing to emery wheel joint block, first between the second pressure head block and forcing press, cushion block is padded, then forcing press drives two pressure head relative motions of press-moulding die with part molding mass of first in extrusion die cavity 5, each pressure head block in push-down head is all exerted pressure along the radial direction of emery wheel joint block to first part of molding mass lower end, pressing stroke in the process due to each pressure head block is consistent, so the middle part of first part of molding mass and lower end, both sides all obtain identical density, and due to emery wheel joint block both sides thickness be greater than emery wheel joint block in the middle part of thickness, excessive density contrast is produced in the radial direction of emery wheel joint block both sides, just must continue to continue to exert pressure to make the density of emery wheel joint block both sides larger to the first pressure head block, now remove the cushion block between the second pressure head block and forcing press, forcing press just can drive the second pressure head block to continue extruding first part of molding mass, to reduce the density contrast in the radial direction of emery wheel joint block both sides, the adjustable of emery wheel joint block both sides density can also be realized by the height controlling cushion block, it is controlled that the utility model arranges by the split of each pressure head block the density achieved between the emery wheel joint each position of block.When required compacting emery wheel joint block radial thickness thicker time, can continue in die cavity drop into second part of molding mass 8, forcing press drive upper and lower pressure head to first part of molding mass and the second molding mass exert pressure make first, second part of molding mass be consolidated into emery wheel joint block 9.
In other embodiment of this press-moulding die: according to the concrete shape of the emery wheel joint block of required compacting, seaming chuck can also be special-shaped pressure head, or upper and lower pressure head is all special-shaped pressure heads; According to the special-shaped peripheral shape of the emery wheel joint block of required compacting, the number of pressure head block can also be two, four or other number.
The embodiment of pressure head is as shown in Fig. 2 ~ 8: the concrete structure of pressure head is identical with the special-shaped pressure head described in above-mentioned each press-moulding die embodiment, is not described in detail in this.
The briquetting process of above-mentioned press-moulding die is used to be: adjacent two the pressure head blocks in the special-shaped pressure head of definition press-moulding die are respectively the first pressure head block and the second pressure head block, the radial thickness that the emery wheel corresponding with the first pressure head block saves block will be thicker than the radial thickness that the emery wheel corresponding with the second pressure head block saves block, the concrete structure of press-moulding die is identical with above-mentioned each press-moulding die embodiment, this briquetting process comprises the following steps, the first step, drive another pressure head relative motion of special-shaped pressure head and press-moulding die to exert pressure to part molding mass of first in die cavity by forcing press, be not described in detail in this, second step, forcing press stops exerting pressure to the second pressure head block of special-shaped pressure head, and forcing press continues driving first pressure head block and exerts pressure to make the corresponding position of first part of molding mass and first, second pressure head block obtain different density (as shown in Figure 4) respectively to first part of molding mass.
Drive another pressure head relative motion of special-shaped pressure head and press-moulding die at described first step forcing press before, between the second pressure head block and forcing press, pad cushion block (as shown in Figure 3); In described second step, realize forcing press by removing described cushion block and stop exerting pressure to the second pressure head block of special-shaped pressure head.In this briquetting process, forcing press can also be realized after stopping is exerted pressure to the second pressure block by following means, the first pressure block is driven to continue to exert pressure to first part of molding mass, such as the lower top of forcing press comprises the sheathed interior top of inside and outside coaxial line and outer top, inside and outside top is driven by each self-corresponding driving cylinder respectively, second pressure block is arranged on interior top, second pressure block is arranged on outer top, continues top pressure first part of molding mass by controlling each driving cylinder to realize the first pressure block.
After described second step, in described die cavity, drop into second part of molding mass (as shown in Figure 5), the emery wheel that forcing press drives another pressure head relative motion of special-shaped pressure head and press-moulding die and makes second part of molding mass and first part of molding mass be consolidated into integrative-structure saves block (as shown in Figure 6).If the radial thickness of required compacting emery wheel joint block is thinner, this step can not have yet.
Claims (2)
1. a pressure head, comprise pressure head body, one end of pressure head body has and is pressed into profile for pushing up the top being pressed into moulding mixture, it is characterized in that: the shape that described top is pressed into profile is identical with the shape that described emery wheel saves the special-shaped side face of block, the pressure head block that at least two splits that described pressure head body is arranged by the axial order saving block along emery wheel are arranged is formed, the upper surface of each pressure head block forms described top together and is pressed into profile, and adjacent two pressure head blocks respectively corresponding described emery wheel save the different radial thickness of block.
2. a press-moulding die, comprise seaming chuck and push-down head, each pressure head includes pressure head body, one end of pressure head body has and is pressed into profile for pushing up the top being pressed into moulding mixture, it is characterized in that: wherein at least one pressure head is special-shaped pressure head, the shape that the top of special-shaped pressure head is pressed into profile is identical with the shape that described emery wheel saves the special-shaped side face of block, the pressure head block that the pressure head body of special-shaped pressure head is arranged by least two splits of the axial order layout saving block along emery wheel is formed, the top that the upper surface of each pressure head block forms described special-shaped pressure head is together pressed into profile, adjacent two pressure head blocks respectively corresponding described emery wheel save the different radial thickness of block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420421527.7U CN204108865U (en) | 2014-07-29 | 2014-07-29 | A kind of pressure head and use the press-moulding die of this pressure head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420421527.7U CN204108865U (en) | 2014-07-29 | 2014-07-29 | A kind of pressure head and use the press-moulding die of this pressure head |
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| Publication Number | Publication Date |
|---|---|
| CN204108865U true CN204108865U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420421527.7U Expired - Fee Related CN204108865U (en) | 2014-07-29 | 2014-07-29 | A kind of pressure head and use the press-moulding die of this pressure head |
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| CN (1) | CN204108865U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162851A (en) * | 2014-07-29 | 2014-11-26 | 郑州磨料磨具磨削研究所有限公司 | Pressure head and compression molding mold and method using pressure head |
| CN107081425A (en) * | 2017-03-07 | 2017-08-22 | 郑州磨料磨具磨削研究所有限公司 | Mould and its pressure head component, pressure head |
| CN111451949A (en) * | 2019-01-22 | 2020-07-28 | 南京三超新材料股份有限公司 | Resin grinding wheel die and pressing method thereof |
| WO2021057485A1 (en) * | 2019-09-25 | 2021-04-01 | 南京肯特复合材料股份有限公司 | Compression molding method for i-shaped part |
-
2014
- 2014-07-29 CN CN201420421527.7U patent/CN204108865U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162851A (en) * | 2014-07-29 | 2014-11-26 | 郑州磨料磨具磨削研究所有限公司 | Pressure head and compression molding mold and method using pressure head |
| CN107081425A (en) * | 2017-03-07 | 2017-08-22 | 郑州磨料磨具磨削研究所有限公司 | Mould and its pressure head component, pressure head |
| CN107081425B (en) * | 2017-03-07 | 2019-09-27 | 郑州磨料磨具磨削研究所有限公司 | Molding die and its pressure head component, pressure head |
| CN111451949A (en) * | 2019-01-22 | 2020-07-28 | 南京三超新材料股份有限公司 | Resin grinding wheel die and pressing method thereof |
| CN111451949B (en) * | 2019-01-22 | 2021-08-17 | 南京三超新材料股份有限公司 | Resin grinding wheel die and pressing method thereof |
| WO2021057485A1 (en) * | 2019-09-25 | 2021-04-01 | 南京肯特复合材料股份有限公司 | Compression molding method for i-shaped part |
| WO2021057484A1 (en) * | 2019-09-25 | 2021-04-01 | 南京肯特复合材料股份有限公司 | Compression molding die for "工"-shaped part |
| US20220250287A1 (en) * | 2019-09-25 | 2022-08-11 | Nanjing Comptech Composites Corp. | Compression molding die for i-shaped part |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20200729 |
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| CF01 | Termination of patent right due to non-payment of annual fee |