CN208867405U - Change spur gear of elevator door mold - Google Patents
Change spur gear of elevator door mold Download PDFInfo
- Publication number
- CN208867405U CN208867405U CN201821236959.5U CN201821236959U CN208867405U CN 208867405 U CN208867405 U CN 208867405U CN 201821236959 U CN201821236959 U CN 201821236959U CN 208867405 U CN208867405 U CN 208867405U
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- CN
- China
- Prior art keywords
- lower die
- change gear
- iron core
- door
- convex cylindrical
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- 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.)
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Abstract
The utility model discloses a kind of change spur gear of elevator door molds, it include: lower die, in can-like, its bottom centre is provided with lower convex cylindrical, the through-hole of door change gear iron core can be set in the lower convex cylindrical, lower die bottom outer ring is tapered surface, and the top surface of lower die is arranged symmetrically, and there are two sprue gates, which extends close to tapered surface by lower die side wall；Upper mold is in can-like, and bottom surface is provided with convex cylindrical, and convex cylindrical can be inserted into a through-hole for change gear iron core on this, and the bottom surface outer ring of upper mold is tapered surface；When door change gear iron core is placed in lower die and use is embossed on a change gear iron core, plastic cement or nylon material are injected by sprue gate, door change gear blank can be formed.The lower die and upper mold are made of polyurethane material.The utility model has the beneficial effect that structure is simple, at low cost, easy to process, work efficiency is high.
Description
Technical field
The utility model relates to a kind of change spur gear of elevator door molds.
Background technique
Elevator industry, door change gear are one of common accessories, and door change gear is mainly by hollow iron core outsourcing plastic cement or nylon etc.
Material is made, and in the prior art, door change gear usually uses the technique of pressure injection to process, and plastic cement or nylon are injected mold by high pressure,
Therefore, mold is usually made of metal material such as No. 45 steel, and metal model volume is big and very heavy, the door processed with this technique
Change gear is at high cost, equipment investment is big, and the labor intensity of worker is also very big.
Utility model content
The utility model changes processing technology, correspondingly according to the above deficiency, provide a kind of change spur gear of elevator door mold
Also mold is innovated.
The technical solution of the utility model is:
A kind of change spur gear of elevator door mold, comprising:
Lower die is in can-like, and bottom centre is provided with lower convex cylindrical, and the through-hole of door change gear iron core can be set in the lower dome
On column, lower die bottom outer ring is tapered surface, and the top surface of lower die is symmetrical arranged there are two sprue gate, which passes through lower die side wall
Extend close to tapered surface；
Upper mold is in can-like, and bottom surface is provided with convex cylindrical, and convex cylindrical can be inserted into a through-hole for change gear iron core on this, on
The bottom surface outer ring of mould is tapered surface；
When door change gear iron core is placed in lower die and use is embossed on a change gear iron core, plastic cement is injected by sprue gate
Or nylon material, door change gear blank can be formed.
The lower die and upper mold are made of polyurethane material.
The utility model directly injects the polyurethane material melted under high temperature as long as cooperating with casting machine from sprue gate
A change gear blank can be formed after cooling, then door change gear blank size can be formed into a change gear finished product.
It should be noted that the door change gear processed in the prior art by punching block is also required to same size and inclined-plane
Finished product processing can be completed, it is in contrast, simpler in the utility model technique, in addition, the processing cost of lower die and upper mold is very
Low, the cost of casting machine is also very low.
The utility model has the beneficial effect that structure is simple, at low cost, easy to process, work efficiency is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model lower die.
Fig. 2 is the structural schematic diagram of the utility model door change gear iron core.
Fig. 3 is structural schematic diagram when the utility model door change gear iron core is put into lower die.
Fig. 4 is the structural schematic diagram that upper mold is covered on the basis of Fig. 3.
Fig. 5 is the door change gear blank structural schematic diagram after the machine-shaping of the utility model mold.
Fig. 6 is the overall structure diagram of the utility model.
Specific embodiment
The utility model is further described now in conjunction with attached drawing:
As shown, a kind of change spur gear of elevator door mold, comprising:
Lower die 1 is in can-like, and bottom centre is provided with lower convex cylindrical 11, and the through-hole 21 of door change gear iron core 2 can be set in this
In lower convex cylindrical 11,1 bottom outer ring of lower die is tapered surface 12, and the top surface of lower die 1 is arranged symmetrically, and there are two sprue gate 13, the casting
Mouth 13 extends close to tapered surface 12 by 1 side wall of lower die；
Upper mold 3 is in can-like, and bottom surface is provided with convex cylindrical, and convex cylindrical can be inserted into a through-hole for change gear iron core 2 on this
21, the bottom surface outer ring of upper mold 3 is tapered surface；
When door change gear iron core 2 is placed in lower die 1 and is pressed on a change gear iron core 2 with upper mold 3, pass through 13 note of sprue gate
Enter plastic cement or nylon material 22, door change gear blank can be formed.
Lower die 1 and upper mold 3 are made of polyurethane material.
Fig. 5 is door change gear blank structure, and entering plastic cement or nylon material 22, also there are surpluses 23 outside, when turning removes surplus 23
Afterwards, the door change gear product of as Fig. 6, plastic cement or nylon material 22 in Fig. 5, Fig. 6 have inclined-plane, and the corresponding inclined-plane is lower die
1 tapered surface 12 and the tapered surface of upper mold 3.
Claims (2)
1. a kind of change spur gear of elevator door mold, characterized in that include:
Lower die (1) is in can-like, and bottom centre is provided with lower convex cylindrical (11), and the through-hole (21) of door change gear iron core (2) can be arranged
On the lower convex cylindrical (11), lower die (1) bottom outer ring is tapered surface (12), and the top surface of lower die (1) is arranged symmetrically, and there are two pour
Geat (13), the sprue gate (13) extend close to tapered surface (12) by lower die (1) side wall；
Upper mold (3) is in can-like, and bottom surface is provided with convex cylindrical, and convex cylindrical can be inserted into a through-hole for change gear iron core (2) on this
(21), the bottom surface outer ring of upper mold (3) is tapered surface；
When door change gear iron core (2) is placed in lower die (1) and is pressed on a change gear iron core (2) with upper mold (3), pass through sprue gate
(13) plastic cement or nylon material are injected, door change gear blank can be formed.
2. a kind of change spur gear of elevator door mold as described in claim 1, characterized in that the lower die (1) and upper mold (3) are by poly- ammonia
Ester material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821236959.5U CN208867405U (en) | 2018-08-02 | 2018-08-02 | Change spur gear of elevator door mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821236959.5U CN208867405U (en) | 2018-08-02 | 2018-08-02 | Change spur gear of elevator door mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208867405U true CN208867405U (en) | 2019-05-17 |
Family
ID=66463927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821236959.5U Active CN208867405U (en) | 2018-08-02 | 2018-08-02 | Change spur gear of elevator door mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208867405U (en) |
-
2018
- 2018-08-02 CN CN201821236959.5U patent/CN208867405U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |