CN214082565U - Production mould of hollow inflation-free tire convenient to drawing of patterns - Google Patents
Production mould of hollow inflation-free tire convenient to drawing of patterns Download PDFInfo
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- CN214082565U CN214082565U CN202022511937.9U CN202022511937U CN214082565U CN 214082565 U CN214082565 U CN 214082565U CN 202022511937 U CN202022511937 U CN 202022511937U CN 214082565 U CN214082565 U CN 214082565U
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Abstract
The utility model discloses a production mould of a hollow inflation-free tire convenient for demoulding, belonging to the field of tire moulds, the utility model discloses a production mould of a hollow inflation-free tire convenient for demoulding, which comprises an upper mould, a middle template and a lower mould from top to bottom in sequence; during injection molding, a mold core disc is arranged on the lower mold, and a mold through hole for the mold core disc to pass through is formed in the middle mold plate; when the injection molding is finished, the die core disc and the product are clamped in the through hole of the die; the upper die and the middle die plate can move up and down to control the die separation and die assembly of the upper die and the lower die. After the injection molding is finished, an object or a mechanism smaller than the inner diameter of the through hole of the mold is placed on the mold core disc, then the middle mold plate is controlled to move towards the lower mold, the tire in the middle mold plate can be ejected out, and the demolding is finished quickly.
Description
Technical Field
The utility model relates to a tire mould field especially relates to a production mould of hollow inflation-free tire convenient to drawing of patterns.
Background
When the hollow tire is produced by adopting the mold, the mechanical property of the produced tire is excellent by adopting an injection molding one-step forming mode, in order to realize the hollow inside of the tire, the boss needs to be installed inside the tire during injection molding, so that the boss is not injected during injection molding, and the boss is taken out after the injection molding is finished to obtain the hollow tire.
After the injection molding is finished, the tire has larger adhesive force to the mold, so that the demolding can be finished only by using larger acting force, and the demolding is inconvenient to operate.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problem that a production mould of the hollow inflation-free tire convenient to drawing of patterns is proposed for after the completion of moulding plastics, can conveniently accomplish the drawing of patterns with the tire is ejecting, make drawing of patterns convenient and fast.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a production mould of a hollow inflation-free tyre convenient for demoulding, which comprises an upper mould, a middle template and a lower mould from top to bottom in sequence; during injection molding, a mold core disc is arranged on the lower mold, and a mold through hole for the mold core disc to pass through is formed in the middle mold plate; when the injection molding is finished, the die core disc and the product are clamped in the through hole of the die; the upper die and the middle die plate can move up and down to control the die separation and die assembly of the upper die and the lower die.
The utility model has the preferable technical proposal that a die disc is arranged on the lower die, the die disc is fixed on the lower die, the outer diameter of the die disc is matched with the die through hole, and the die disc is positioned in the die through hole when the die is closed; and the upper die is provided with a die groove matched with the die through hole, so that after die assembly is carried out, an injection molding cavity is formed together with the die through hole and the die disc.
The utility model discloses preferred technical scheme lies in, be provided with the locating hole on the mould dish, the downside of mould core dish is provided with the location boss, when the installation, the location boss is located in the locating hole.
The utility model discloses preferred technical scheme lies in, be provided with compression spring in the mould recess, after the compound die, compression spring with the mold core dish offsets to after the completion of moulding plastics, compression spring will the mold core dish is bounced open.
The utility model discloses preferred technical scheme lies in, the edge of well template is provided with the direction cylinder, the border position of going up the mould be provided with direction cylinder assorted half slot, when the compound die, the direction cylinder is located in the half slot.
The utility model discloses preferred technical scheme lies in, the mold core dish includes disk body, lower disk body and a plurality of plunger, go up the disk body with lower disk body joint in the both sides of plunger, when the compound die, compression spring with it offsets to go up the disk body, so that go up the disk body with the lower disk body presss from both sides tightly the plunger.
The utility model has the preferable technical proposal that the lower disk body and the upper disk body are both provided with semicircular clamping grooves, and the plunger is positioned in the clamping grooves; a positioning pin hole is formed in the semicircular clamping groove of the lower disc body, a positioning pin column is arranged in the positioning pin hole, and a guide through hole matched with the positioning pin column is formed in the plunger.
The utility model discloses preferred technical scheme lies in, be provided with the round pin keyhole on the last disk body, be provided with ejecting round pin key in the round pin keyhole, ejecting round pin key with round pin keyhole transition fit, ejecting round pin key's one end is provided with the ejector pin, the ejector pin with the lower disk body offsets.
The utility model has the advantages that:
the utility model provides a production mould of a hollow inflation-free tyre convenient for demoulding, which comprises an upper mould, a middle template and a lower mould from top to bottom in sequence; during injection molding, a mold core disc is arranged on the lower mold, and a mold through hole for the mold core disc to pass through is formed in the middle mold plate; when the injection molding is finished, the die core disc and the product are clamped in the through hole of the die; the upper die and the middle die plate can move up and down to control the die separation and die assembly of the upper die and the lower die. After the injection molding is finished, an object smaller than the inner diameter of the through hole of the mold is placed on the mold core disc, then the middle mold plate is controlled to move towards the lower mold, the tire in the middle mold plate can be ejected out, and the demolding is finished quickly.
Drawings
FIG. 1 is a schematic diagram of a partial explosion structure of a mold for producing a hollow non-pneumatic tire with easy demolding according to an embodiment of the present invention;
fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to an embodiment of the present invention;
FIG. 3 is a schematic view of the overall structure of a mold for producing a hollow non-pneumatic tire with easy demolding according to an embodiment of the present invention;
in the figure:
2. a die core disc; 11. an upper die; 12. a middle template; 13. a lower die; 14. a guide cylinder; 15. a semicircular groove; 21. positioning the boss; 111. a compression spring; 121. a through hole of the mold; 131. a mold plate; 132. positioning holes; 22. an upper tray body; 23. a plunger; 24. a lower tray body; 25. ejecting a pin key; 26. positioning the pin column; 231. A guide through hole; 241. a semicircular clamping groove; 244. a positioning pin hole; 251. a pin key hole; 252. and ejecting the rod.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1-3, the present embodiment provides a mold for producing a hollow non-pneumatic tire, which comprises, from top to bottom, an upper mold 11, a middle mold plate 12, and a lower mold 13; during injection molding, the lower mold 13 is provided with a mold core disc 2, and the middle mold plate 12 is provided with a mold through hole for the mold core disc 2 to pass through; when the injection molding is completed, the die core disc 2 and the product are clamped in the die through hole 121. The upper die 11 and the middle die plate 12 can move up and down to control the die parting and die closing of the upper die 11 and the middle die plate 12 and the lower die 13, the lower die 13 is fixed on the frame, and the upper die 11 and the middle die plate 12 are respectively fixed on two groups of hydraulic lifting columns so as to respectively control the rising and falling of the upper die 11 and the middle die plate 12. During injection molding, the mold core disc 2 is placed on the lower mold 13, then the middle mold plate 12 is controlled to move towards the lower mold 13, the side wall of the mold through hole is matched with the shape of the tire, and the inner diameter of the side, close to the lower mold 13, of the mold through hole 121 is smaller, so that the tire cannot fall from the mold through hole 121 after injection molding is completed. The upper die 11 also moves towards the lower die 13 during injection, after injection, the upper die 11 and the middle die plate 12 both move upwards, and the middle die plate 12 is also separated from the upper die 11; then, a cushion block smaller than the mold through hole 121 is placed on the lower mold 13, the middle mold plate 12 is controlled to move towards the lower mold 13, and therefore the cushion block can eject the injection molded tire together with the mold core disc 2, and demolding can be completed quickly.
Preferably, a mold disc 131 is arranged on the lower mold 13, the mold disc 131 is fixed on the lower mold 13, the outer diameter of the mold disc 131 is matched with the mold through hole 121, and when the mold is closed, the mold disc 131 is located in the mold through hole 121; the upper mold 11 is provided with a mold groove matched with the mold through hole, so that after mold closing, the upper mold, the mold through hole 121 and the mold plate 131 form an injection molding cavity together. The mold platen 131 is higher than the plane of the lower mold 13, and when the molds are closed, the plane of the lower mold 13 is attached to one side of the middle mold plate 12, and the mold platen 131 is located in the mold through hole 121, so that the mold platen 2 can be located at the center of the entire injection cavity when the mold platen 2 is placed on the lower mold 13. Preferably, the mold disc 131 is provided with a positioning hole 132, the lower side surface of the mold core disc 2 is provided with a positioning boss 21, and when the mold core disc is installed, the positioning boss 21 is located in the positioning hole 132. So that the mold core disc 2 can be installed quickly and accurately.
Preferably, a compression spring 111 is arranged in the mold groove, and after mold closing, the compression spring 111 abuts against the mold core disc 2, so that after injection molding is completed, the compression spring 111 springs the mold core disc 2 open. So that after the injection molding is completed, the tire and the core plate 2 are not adhered to the upper mold 11, so that the tire and the core plate are finally ejected from the middle mold plate 12 without being buckled from the upper mold 11, and the demolding is convenient.
Preferably, the edge of the middle mold plate 12 is provided with a guide cylinder 14, the edge of the upper mold 11 is provided with a semicircular groove 15 matched with the guide cylinder 14, and the guide cylinder 14 is positioned in the semicircular groove 15 when the molds are closed. When the upper die 11 and the middle die plate 12 are distributed to the lower die 13 for die assembly, the upper die 11 and the middle die plate can be kept aligned, and the die assembly precision is ensured.
Preferably, the die core disc 2 includes an upper disc body 22, a lower disc body 24 and a plurality of plungers 23, the upper disc body 22 and the lower disc body 24 are clamped at two sides of the plungers 23, and when the dies are closed, the compression spring 111 is abutted against the upper disc body 22, so that the plungers 23 are clamped by the upper disc body 22 and the lower disc body 24. The hollow hole is formed in the middle of the tire after injection molding through the plunger 23, so that the weight of the tire can be reduced, and the elasticity of the tire can be increased. The plunger 23 is clamped by the upper disc body 22 and the lower disc body 24, so that the plunger 23 can be detached by detaching the upper disc body 22 and the lower disc body 24 after the injection molding is finished, and the detachment is convenient.
Preferably, semicircular clamping grooves 241 are formed in the lower disc body 24 and the upper disc body 22, and the plunger 23 is located in the semicircular clamping grooves 241; a positioning pin hole 244 is arranged in the semicircular clamping groove 241 of the lower disc body 24, a positioning pin 26 is arranged in the positioning pin hole 244, and a guide through hole 231 matched with the positioning pin 26 is arranged on the plunger 23. The plunger 23 is easily installed by the action of the locating pin 26 and is not displaced after installation.
Preferably, a pin key hole 251 is formed in the upper tray body 22, an ejection pin key 25 is arranged in the pin key hole 251, the ejection pin key 25 is in transition fit with the pin key hole 251, an ejection rod is arranged at one end of the ejection pin key 25, and the ejection rod abuts against the lower tray body 24. After the injection molding is completed, the upper disc body 22 and the lower disc body 24 can be easily separated by striking the ejector pin key 25, thereby quickly completing the disassembly of the core disc 2.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (8)
1. The utility model provides a production mould of pneumatic tire is exempted from to hollow convenient to drawing of patterns which characterized in that:
the die comprises an upper die (11), a middle die plate (12) and a lower die (13) from top to bottom in sequence; during injection molding, a die core disc (2) is arranged on the lower die (13), and a die through hole (121) for the die core disc (2) to pass through is formed in the middle die plate (12); when the injection molding is finished, the die core disc (2) and a product are clamped in the die through hole (121); the upper die (11) and the middle die plate (12) are respectively fixed on the two groups of hydraulic lifting columns to respectively control the lifting and the falling of the upper die (11) and the middle die plate (12) so as to control the die separation and the die assembly of the upper die and the lower die (13).
2. The mold for producing a hollow non-pneumatic tire facilitating mold release according to claim 1, wherein:
a die disc (131) is arranged on the lower die (13), the die disc (131) is fixed on the lower die (13), the outer diameter of the die disc (131) is matched with the die through hole (121), and the die disc (131) is positioned in the die through hole (121) during die assembly;
and a mold groove matched with the mold through hole (121) is formed in the upper mold (11), so that after mold closing, an injection molding cavity is formed together with the mold through hole (121) and the mold disc (131).
3. The mold for producing a hollow non-pneumatic tire facilitating mold release according to claim 2, wherein:
be provided with locating hole (132) on mould dish (131), the downside of mould core dish (2) is provided with location boss (21), and when the installation, location boss (21) are located in locating hole (132).
4. The mold for producing a hollow non-pneumatic tire facilitating mold release according to claim 2, wherein:
and a compression spring (111) is arranged in the groove of the mold, and after the mold is closed, the compression spring (111) is abutted against the mold core disc (2), so that after the injection molding is finished, the compression spring (111) bounces the mold core disc (2).
5. The mold for producing a hollow non-pneumatic tire facilitating mold release according to claim 1, wherein:
the edge of the middle template (12) is provided with a guide cylinder (14), the edge of the upper mold (11) is provided with a semicircular groove (15) matched with the guide cylinder (14), and the guide cylinder (14) is positioned in the semicircular groove (15) during mold closing.
6. The mold for producing a hollow non-pneumatic tire facilitating mold release according to claim 4, wherein:
the die core disc (2) comprises an upper disc body (22), a lower disc body (24) and a plurality of plungers (23),
the upper disc body (22) and the lower disc body (24) are clamped on two sides of the plunger (23), and when the die is closed, the compression spring (111) is abutted against the upper disc body (22) so that the plunger (23) is clamped by the upper disc body (22) and the lower disc body (24).
7. The mold for producing a hollow non-pneumatic tire facilitating mold release according to claim 6, wherein:
semicircular clamping grooves (241) are formed in the lower disc body (24) and the upper disc body (22), and the plunger (23) is located in the semicircular clamping grooves (241);
a positioning pin hole (244) is formed in a semicircular clamping groove (241) of the lower disc body (24), a positioning pin column (26) is arranged in the positioning pin hole (244), and a guide through hole (231) matched with the positioning pin column (26) is formed in the plunger (23).
8. The mold for producing a hollow non-pneumatic tire facilitating mold release according to claim 6 or 7, wherein:
the upper tray body (22) is provided with a pin key hole (251), an ejection pin key (25) is arranged in the pin key hole (251), the ejection pin key (25) is in transition fit with the pin key hole (251), one end of the ejection pin key (25) is provided with an ejection rod (252), and the ejection rod (252) is abutted to the lower tray body (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022511937.9U CN214082565U (en) | 2020-11-03 | 2020-11-03 | Production mould of hollow inflation-free tire convenient to drawing of patterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022511937.9U CN214082565U (en) | 2020-11-03 | 2020-11-03 | Production mould of hollow inflation-free tire convenient to drawing of patterns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214082565U true CN214082565U (en) | 2021-08-31 |
Family
ID=77446517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022511937.9U Active CN214082565U (en) | 2020-11-03 | 2020-11-03 | Production mould of hollow inflation-free tire convenient to drawing of patterns |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214082565U (en) |
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2020
- 2020-11-03 CN CN202022511937.9U patent/CN214082565U/en active Active
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