CN212826412U - Pulley mold - Google Patents
Pulley mold Download PDFInfo
- Publication number
- CN212826412U CN212826412U CN202021189488.4U CN202021189488U CN212826412U CN 212826412 U CN212826412 U CN 212826412U CN 202021189488 U CN202021189488 U CN 202021189488U CN 212826412 U CN212826412 U CN 212826412U
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- pulley
- base
- connecting groove
- forming cylinder
- mold
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Abstract
The utility model relates to a mould, in particular to a pulley mould, which comprises a forming cylinder; the bottom of the mold core is provided with a positioning column; the top of the base is provided with a positioning hole and at least one connecting groove, the connecting groove is an annular groove and is matched with the forming cylinder, and the connecting groove and the positioning hole are coaxially arranged; the adhesive is coated on the top surface of the base and used for fixing the molding piece on the base; one end of the forming cylinder is inserted into the connecting groove, the mold core is located inside the forming cylinder, and the positioning column is inserted into the positioning hole. The utility model provides a pair of pulley mold simple structure, with low costs, convenient to use, cycle are short, be fit for making a design and small batch production, fashioned pulley blank processing is convenient.
Description
Technical Field
The utility model relates to a mould, especially a pulley mould.
Background
The multi-wire cutting machine is used for cutting silicon wafers in the photovoltaic and semiconductor industries, the guide wheel bears a steel wire and drives the steel wire to rotate at a high speed for cutting silicon rods, and the multi-wire cutting machine is provided with a plurality of wire pulleys (Pulley) for smoothly conveying the steel wire to the guide wheel. The pulley is mainly processed by injection molding and machining of a thermoplastic polyurethane molding die. The thermoplastic polyurethane pulley has the advantages and disadvantages that:
the advantages are that: the yield is high;
the disadvantages are as follows:
the abrasion resistance of the thermoplastic polyurethane molded pulley is poor;
the forming die has high cost and long period, and is not suitable for proofing products;
the production process of the forming die is greatly influenced by temperature, the pulley is easy to deform, and the dimensional precision error is large;
the forming effect of the die at the bottom of the pulley groove is poor, and the size precision of the pulley without machining is high, particularly the roundness parameter.
The mechanical processing molding is a blank barrel material and machining mode:
the advantages are that the size is well controlled, and the wear resistance is relatively high;
the defects are obvious, the waste of materials of the blanks is large, in addition, the machining efficiency is relatively low, and the cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a can reduce mould cost, convenient to use, cycle weak point, be fit for making a design and small batch production, the convenient pulley mold of fashioned pulley blank processing, concrete technical scheme is:
a pulley mold includes a molding barrel; the bottom of the mold core is provided with a positioning column; the top of the base is provided with a positioning hole and at least one connecting groove, the connecting groove is an annular groove and is matched with the forming cylinder, and the connecting groove and the positioning hole are coaxially arranged; the adhesive is coated on the top surface of the base and used for fixing the molding piece on the base; one end of the forming cylinder is inserted into the connecting groove, the mold core is located inside the forming cylinder, and the positioning column is inserted into the positioning hole.
Through adopting above-mentioned technical scheme, realize the casting moulding of polyurethane through a shaping section of thick bamboo, base and core, the mould is with low costs to have the commonality, the shaping section of thick bamboo of different diameters only need be changed to different pulleys, and be fit for drawing a design and small batch production.
The fixed of core is realized to locating hole and reference column, and the fixed of a shaping section of thick bamboo is realized to the spread groove.
The formed pulley blank is fixed on the base by the adhesive, so that subsequent processing is facilitated.
Furthermore, the mold core is in a shape of a circular truncated cone, and a positioning column is arranged at one end with a small diameter.
By adopting the technical scheme, the mold core in the shape of the circular truncated cone is convenient to demould.
Furthermore, the other end of the mold core is provided with a demolding rod.
Through adopting above-mentioned technical scheme, the convenient drawing of patterns of stripper rod.
Furthermore, the bottom of the base is provided with a clamping shaft.
By adopting the technical scheme, the clamping shaft facilitates the clamping of the base by the three-jaw chuck, so that the polyurethane can be machined conveniently.
Furthermore, the bottom surface of base is equipped with the screw hole that is used for the fluting fixed.
Through adopting above-mentioned technical scheme, the screw hole is conveniently fixed on processing equipment.
Compared with the prior art the utility model discloses following beneficial effect has:
the utility model provides a pair of pulley mold simple structure, with low costs, convenient to use, cycle are short, be fit for making a design and small batch production, fashioned pulley blank processing is convenient.
Drawings
FIG. 1 is a schematic structural view of an embodiment;
FIG. 2 is a sectional view of the embodiment;
FIG. 3 is a schematic view of the construction of the mandrel;
fig. 4 is a schematic structural view of the base.
In the figure: 1. a forming cylinder; 2. a core; 21. a positioning column; 22. a stripper bar; 3. a base; 31. connecting grooves; 32. positioning holes; 33. and (4) clamping the shaft.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings.
As shown in fig. 1 to 4, a pulley mold includes a molding barrel 1; the mold core 2 is provided with a positioning column 21 at the bottom of the mold core 2; the top of the base 3 is provided with a positioning hole 32 and at least one connecting groove 31, the connecting groove 31 is an annular groove and is matched with the forming cylinder 1, and the connecting groove 31 and the positioning hole 32 are coaxially arranged; the adhesive is coated on the top surface of the base 3 and used for fixing the formed piece on the base 3; one end of the forming tube 1 is inserted into the connecting groove 31, the mold core 2 is positioned inside the forming tube 1, and the positioning column 21 is inserted into the positioning hole 32.
The forming tube 1 is cylindrical.
The casting molding of polyurethane is realized through a molding barrel 1, a base 3 and a mold core 2, the structure is simple, the mold cost is low, the universality is realized, different pulleys only need to be replaced with molding barrels 1 of different diameters, and the casting molding device is suitable for proofing and small-batch production.
The positioning hole 32 and the positioning column 21 realize the fixation of the mold core 2, and the connecting groove 31 realizes the fixation of the molding barrel 1.
The mold core 2 is in a shape of a circular truncated cone, and a positioning column 21 is arranged at one end with a small diameter. The round platform shape is convenient for demoulding.
The inner diameter of the forming tube 1 and the outer diameter of the core 2 are set according to the size of the pulley.
And forming a forming cavity among the forming cylinder 1, the base 3 and the mold core 2, and filling liquid polyurethane into the forming cavity to complete the forming of the pulley.
Before the forming drum 1 is installed, a layer of adhesive is coated on the top surface of the base 3, and then the forming drum 1 is installed, and the pulley blank is fixed on the base 3 by the adhesive.
The other end of the core 2 is provided with a stripper rod 22. The stripper bar 22 facilitates stripping.
The bottom of the base 3 is provided with a clamping shaft 33. The clamping shaft 33 facilitates the clamping of the base 3 by the three-jaw chuck, thereby facilitating the machining of the pulley blank of polyurethane.
The bottom surface of the base 3 is provided with a threaded hole for slotting and fixing. The screw hole is conveniently fixed on processing equipment.
The utility model discloses solved the processing problem of small batch pulley order to a certain extent, verified the effect as follows:
the die has simple structure and relatively low cost, and the die has high universality and can be applied to the subsequent grooving tool of the pulley, so that the cost of the whole die is low;
the novel die reduces the waste of materials to the maximum extent and reduces the material cost while considering the universality;
subsequent grooving machine processing does not need to replace a tool, so that grooving production efficiency is greatly improved;
the grooving process does not need to clamp the polyurethane part, the dimensional accuracy of the pulley is greatly improved compared with the prior art, the original processing mode needs to clamp the polyurethane, the polyurethane material is low in hardness and large in elasticity, and once the pulley is contacted with the polyurethane part during installation, the size of the pulley is not easy to guarantee.
Claims (5)
1. A pulley mold is characterized by comprising
A forming cylinder;
the bottom of the mold core is provided with a positioning column;
the top of the base is provided with a positioning hole and at least one connecting groove, the connecting groove is an annular groove and is matched with the forming cylinder, and the connecting groove and the positioning hole are coaxially arranged;
the adhesive is coated on the top surface of the base and used for fixing the molding piece on the base;
one end of the forming cylinder is inserted into the connecting groove, the mold core is located inside the forming cylinder, and the positioning column is inserted into the positioning hole.
2. The pulley mold according to claim 1,
the mold core is round table-shaped, and the end with the small diameter is provided with a positioning column.
3. The pulley mold according to claim 1,
and the other end of the mold core is provided with a demolding rod.
4. The pulley mold according to claim 1,
and the bottom of the base is provided with a clamping shaft.
5. The pulley mold according to claim 1,
and a threaded hole for grooving and fixing is formed in the bottom surface of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021189488.4U CN212826412U (en) | 2020-06-23 | 2020-06-23 | Pulley mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021189488.4U CN212826412U (en) | 2020-06-23 | 2020-06-23 | Pulley mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212826412U true CN212826412U (en) | 2021-03-30 |
Family
ID=75176543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021189488.4U Active CN212826412U (en) | 2020-06-23 | 2020-06-23 | Pulley mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212826412U (en) |
-
2020
- 2020-06-23 CN CN202021189488.4U patent/CN212826412U/en active Active
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