CN207325938U - Belt pulley shaping female mould structure - Google Patents
Belt pulley shaping female mould structure Download PDFInfo
- Publication number
- CN207325938U CN207325938U CN201720900294.2U CN201720900294U CN207325938U CN 207325938 U CN207325938 U CN 207325938U CN 201720900294 U CN201720900294 U CN 201720900294U CN 207325938 U CN207325938 U CN 207325938U
- Authority
- CN
- China
- Prior art keywords
- belt pulley
- cavity
- female mould
- punch
- mould structure
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of belt pulley shaping female mould structure, including upper punching, former and undershoot, the former is provided centrally with cavity, the upper and lower of the cavity sets the upper punching being adapted with its size and undershoot respectively, wherein, the upper punching includes rushing body, punch is connected with one heart in the lower section for rushing body, the bottom of the punch has been formed down protrusion, the protrusion is with treating that the cavity of shaping belt pulley is adapted, and the raised size is gradually incremented by from lower to upper, is connected between the raised side wall and its bottom surface using arc surface transition.Its remarkable result is：By varying product Training system, i.e., one end that product is easily deformed is supported by protrusion, improves product taper, improve product quality.
Description
Technical field
Powder metallurgy pulley production technical field is the utility model is related to, is a kind of belt pulley shaping specifically
Female mould structure.
Background technology
Powder metallurgy is to produce metal or be used as by the use of metal dust (or mixture of metal dust and non-metal powder) former
Material, by shaping and sintering, the technology of manufacture metal material, composite material and all kinds product.Due to powder smelting
The advantages of technology for gold, it becomes the key for solving the problems, such as new material, very important effect is played in the development of new material.
However, blank is made using casting iron craft in most of existing belt pulley, then it is machined be made, due to it is a variety of because
Element influences, the defects of stomata, pin hole, slag inclusion, crackle, pit usually occurs in process.The corner material of ironcasting processing at the same time
It is more, waste greatly, of high cost, Product Precision is low, and, it is necessary to be balanced processing, fabrication procedures are cumbersome, and product efficiency is low.
Although also there is minority to be produced using powder metallurgical technique, such pulley wall is thin, and taper is very big after sintering warpage,
External tooth A ends are than B end about 0.3 or so, as shown in Figures 1 and 2 so that product quality does not often reach process requirements, not even
It can install and use.This undoubtedly greatly affected product quality and goodwill.
The content of the invention
In view of the deficiencies of the prior art, the purpose of this utility model is to provide a kind of belt pulley shaping female mould structure, passes through
Change product Training system, product taper can be improved, improve product quality.
To reach above-mentioned purpose, the technical solution adopted in the utility model is as follows：
A kind of belt pulley shaping female mould structure, its key are：Including upper punching, former and undershoot, the center of the former
Cavity is provided with, the upper and lower of the cavity sets the upper punching being adapted with its size and undershoot respectively, wherein, it is described
Upper punching includes rushing body, and punch is connected with one heart in the lower section for rushing body, and the bottom of the punch has been formed down protrusion, should
Protrusion is with treating that the cavity of shaping belt pulley is adapted, and the raised size is gradually incremented by from lower to upper, the raised side wall
It is connected between its bottom surface using arc surface transition.
Further, the former includes core rod and die sleeve, and what the core rod was set in die sleeve is centrally formed integral type knot
Structure, in the centrally disposed cavity of the core rod.
Further, the die sleeve lower end outer wall formed with installation step, the both sides of the edge up and down of the installation step
Use chamfered.
Further, be further opened with multiple location holes on the die sleeve, multiple location holes centered on core rod simultaneously
It is circumferentially distributed along its.
Further, it is located at slot end formed with uncovered structure, the open end of the uncovered structure in the upper end of the cavity
Top, the slot end size of the uncovered structure is consistent with the size of cavity.
Further, the punching is equipped with positioning pin in vivo, and the lower end of the positioning pin is stretched into the punch, described to rush body
Fixation is connected by hex bolts between punch.
The remarkable result of the utility model is：It is simple in structure, it is easy to use, by varying the finishing mode of existing product,
In shaping, first allow and rush in one end with cavity into product, the protrusion of upper punching comes into full contact with product cavity, product
The end swells, and product is then pressed into former by upper punching, after product enters former, the product other end because there is no punch support, because
This can be under the effect of the pressure of punch by under former hoop, and product there is one end of cavity to have upper punching to prop up do not have change substantially
Change, be effectively guaranteed the taper of product, it is met customer demand.
Brief description of the drawings
Fig. 1 is the structure diagram of the belt pulley；
Fig. 2 is the sectional view of the belt pulley；
Fig. 3 is the structure diagram of the utility model；
Fig. 4 is the structure diagram of the upper punching；
Fig. 5 is the sectional view of the upper punching；
Fig. 6 is the structure diagram of the former.
Embodiment
Specific embodiment of the present utility model and operation principle are described in further detail below in conjunction with the accompanying drawings.
As shown in Fig. 3~Fig. 6, a kind of belt pulley shaping female mould structure, including upper punching 1, former 2 and undershoot 3, described the moon
Mould 2 is provided centrally with cavity 4, the upper and lower of the cavity 4 set respectively the upper punching 1 that is adapted with its size and under
Punching 3, wherein, the upper punching 1 includes rushing body 11, is connected with punch 12, the punch 12 with one heart in the lower section for rushing body 11
Bottom be formed down protrusion 13, the protrusion 13 is with treating that the cavity of shaping belt pulley is adapted, and raised 13 ruler
It is very little to be gradually incremented by from lower to upper, connected between the side wall of the protrusion 13 and its bottom surface using arc surface transition；It is described to rush in body 11
Positioning pin 14 is equipped with, the lower end of the positioning pin 14 is stretched into the punch 12, described to rush between body 11 and punch 12 by six
The connection of corner bolt 15 is fixed.
Referring to attached drawing 6, the former 2 includes core rod 21 and die sleeve 22, and the core rod 21 is set in the middle heart of die sleeve 22
Integrated structure, in the centrally disposed cavity 4 of the core rod 21.
As shown in fig. 6, the die sleeve 22 lower end outer wall formed with installation step 23, up and down the two of the installation step 23
The equal chamfered of lateral edges.
From fig. 6 it can be seen that be further opened with multiple location holes 24 on the die sleeve 22, multiple location holes 24 with
It is centered on core rod 21 and circumferentially distributed along its.
From Fig. 3 it can also be seen that in the upper end of the cavity 4 formed with uncovered structure 5, the opening of the uncovered structure 5
End is consistent with the size of cavity 4 positioned at the top at slot end, the slot end size of the uncovered structure 5.At the same time in cavity 4
Upper end sets uncovered structure 5, effectively ensures and treats that shaping belt pulley can be smoothly fallen into cavity 4, while avoids to production
The damage of product appearance, is effectively guaranteed product quality.
The working method of this structure is：
By varying the finishing mode of product, in shaping, the one end with cavity for treating shaping belt pulley s is first allowed to be schemed
B ends shown in 2 enter upper punching 1, as shown in figure 3, the protrusion 13 that the lower end of upper punching 1 has comes into full contact with product cavity, upper
So that B ends swell under the pressure of punching 1, product is then pressed into by upper punching 1 by former 2, after product enters former 2, due to A ends
Do not have the support of punch 12, thus can be bound round by former 2 it is small, and B ends have protrusion 13 support change in size will not then occur substantially,
It is thereby advantageously ensured that the taper of product, improves product quality.
Claims (6)
- A kind of 1. belt pulley shaping female mould structure, it is characterised in that：Including upper punching (1), former (2) and undershoot (3), the former (2) be provided centrally with cavity (4), the upper and lower of the cavity (4) sets the upper punching being adapted with its size respectively (1) and undershoot (3), wherein, the upper punching (1) includes rushing body (11), and punch is connected with one heart in the lower section for rushing body (11) (12), the bottom of the punch (12) has been formed down raised (13), cavity phase of the protrusion (13) with treating shaping belt pulley Adapt to, and the size of raised (13) is gradually incremented by from lower to upper, using circle between the side wall of the protrusion (13) and its bottom surface Cambered surface transition connects.
- 2. belt pulley shaping female mould structure according to claim 1, it is characterised in that：The former (2) includes core rod (21) with die sleeve (22), what the core rod (21) was set in die sleeve (22) is centrally formed integral structure, in the core rod (21) The centrally disposed cavity (4).
- 3. belt pulley shaping female mould structure according to claim 2, it is characterised in that：Outside the lower end of the die sleeve (22) Wall is formed with installation step (23), the equal chamfered in both sides of the edge up and down of the installation step (23).
- 4. the belt pulley shaping female mould structure according to Claims 2 or 3, it is characterised in that：On the die sleeve (22) also Multiple location holes (24) are offered, multiple location holes (24) are centered on core rod (21) and circumferentially distributed along its.
- 5. according to claims 1 to 3 any one of them belt pulley shaping female mould structure, it is characterised in that：In the cavity (4) Upper end formed with uncovered structure (5), the open end of the uncovered structure (5) is located at the top at slot end, the uncovered structure (5) Slot end size it is consistent with the size of cavity (4).
- 6. belt pulley shaping female mould structure according to claim 1, it is characterised in that：Described rush in body (11) is equipped with calmly Position pin (14), the lower end of the positioning pin (14) are stretched into the punch (12), and described rush between body (11) and punch (12) passes through Hex bolts (15) connection is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720900294.2U CN207325938U (en) | 2017-07-24 | 2017-07-24 | Belt pulley shaping female mould structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720900294.2U CN207325938U (en) | 2017-07-24 | 2017-07-24 | Belt pulley shaping female mould structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207325938U true CN207325938U (en) | 2018-05-08 |
Family
ID=62376622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720900294.2U Expired - Fee Related CN207325938U (en) | 2017-07-24 | 2017-07-24 | Belt pulley shaping female mould structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207325938U (en) |
-
2017
- 2017-07-24 CN CN201720900294.2U patent/CN207325938U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20210724 |