CN105328889B - Reset protection switch of injection mold - Google Patents
Reset protection switch of injection mold Download PDFInfo
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- CN105328889B CN105328889B CN201510975643.2A CN201510975643A CN105328889B CN 105328889 B CN105328889 B CN 105328889B CN 201510975643 A CN201510975643 A CN 201510975643A CN 105328889 B CN105328889 B CN 105328889B
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- movable contact
- ball
- injection mold
- shell
- balls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/84—Safety devices
- B29C45/844—Preventing damage caused by obstructions or foreign matter caught between mould halves during mould closing, e.g. moulded parts or runners
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Switches (AREA)
Abstract
The invention discloses an injection mold reset protection switch which comprises a shell, a travel switch arranged in the shell, three balls arranged in a triangular mode and a movable contact used for extruding the three balls to trigger the travel switch, wherein the movable contact can be movably arranged in the shell up and down, the other side of the movable contact relative to the three balls extends out of the shell, an installation groove used for installing the travel switch, the three balls and the movable contact is formed in the shell, a positioning groove used for limiting the balls to run left and right is formed in one side of the movable contact facing the balls, and the balls at the top of the movable contact are abutted to the positioning groove. The reset protection switch of the injection mold is not easy to cause the phenomenon of mold collision.
Description
Technical Field
The invention relates to a protection switch, in particular to a reset protection switch of an injection mold.
Background
At present, plastic injection molding parts are widely applied to articles for daily use, electronic products or automobile decoration. The plastic injection molding part is processed by a plastic mold closing machine, and the quality of the injection molding part is directly determined by the working condition of the plastic mold closing machine. In the existing mold closing machine, an ejector rod is required to push down an injection-molded workpiece, and then the ejector rod is reset to start the next mold closing of the mold.
The present company previously filed application numbers of: 201520184285.9 discloses a reset switch for protecting an injection mold, which is characterized in that the reset switch comprises a metal shell, a metal movable contact, an elastic element and a travel switch; at least 2 cavities are arranged in the metal shell, wherein a metal movable contact and an elastic element are arranged in one cavity, and a travel switch is arranged in the other cavity; one end of the metal movable contact protrudes out of the side face of the metal shell, and the other opposite end of the metal movable contact is connected with the travel switch contact through the elastic element.
This protection injection mold's the interior elastic component of reset switch is the ball that becomes the triangle-shaped range, when metal movable contact atress extrudees three ball, the ball on top sinks to extrude two balls, make two lower balls keep away from each other, lower ball can remove touch travel switch, but half that ball on top is more than the casing down, and the face that movable contact and ball contradict is a plane, when three ball removed in the cavity, the ball on top is taken place easily and is moved about, thereby the displacement that the ball produced that extrudes down under bottom if taking place to move about on top will change and can influence whole protection switch's precision, the phenomenon that hits the mould appears easily in the mould.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the reset protection switch of the injection mold, which is not easy to cause the phenomenon of mold collision.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an injection mold protection switch that resets, includes the casing, sets up travel switch in the casing, is three ball that the triangle-shaped was arranged and is used for extrudeing three ball and touch travel switch's movable contact, movable contact can set up in the casing and relative three ball's opposite side extends to outside the casing with moving about, be equipped with installation travel switch, three ball and movable contact's mounting groove in the casing, movable contact is equipped with the constant head tank that is used for restricting ball about running towards one side of ball, and the ball at top is contradicted in the constant head tank, the constant head tank is the arc wall, the axis and the two ball center line in bottom of constant head tank are parallel to each other, the constant head tank communicates with each other with the external world for axial.
The invention preferably comprises the following components: the travel switch is provided with a positioning hole, and a positioning rod matched with the positioning groove is arranged in the mounting groove.
The invention preferably comprises the following components: the shell comprises an upper shell and a lower shell, the mounting groove is formed in the lower shell, and a compression spring is arranged between the lower shell and the movable contact.
The invention preferably comprises the following components: and the lower shell is provided with a mounting hole for mounting the compression spring.
Compared with the prior art, the invention has the beneficial effects that: the bottom of the movable contact is provided with the positioning groove for limiting the ball to run left and right, so that the movable contact extrudes the three balls, the ball at the top is not easy to run left and right, the precision of the protection switch is more accurate, and the die is not easy to bump.
Drawings
FIG. 1 is a perspective view of an injection mold reset protection switch;
FIG. 2 is a front view of the injection mold reset protection switch with the upper housing removed;
FIG. 3 is a perspective view of the injection mold reset protection switch with the upper housing and movable contact removed;
FIG. 4 is a perspective view of the lower housing;
FIG. 5 is a perspective view of a movable contact according to one embodiment;
fig. 6 is a perspective view of a movable contact according to a second embodiment.
Reference numerals: 1. a housing; 2. a travel switch; 3. a ball bearing; 4. a movable contact; 5. mounting grooves; 6. positioning a groove; 7. a hemispherical groove; 8. an arc-shaped slot; 9. positioning a rod; 10. positioning holes; 11. an upper housing; 12. a lower housing; 13. a compression spring; 14. and (7) installing holes.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 3, an injection mold reset protection switch includes a housing 1, a travel switch 2 disposed in the housing 1, three balls 3 arranged in a triangle, and a movable contact 4 for pressing the three balls 3 to touch the travel switch 2, wherein the movable contact 4 is movably disposed in the housing 1 up and down and extends to the outside of the housing 1 (as shown in fig. 1) relative to the other side of the three balls 3, a mounting groove 5 for mounting the travel switch 2, the three balls 3, and the movable contact 4 is disposed in the housing 1, a positioning groove 6 for limiting the balls 3 from moving left and right is disposed on one side of the movable contact 4 facing the balls 3, and the balls 3 at the top of the movable contact are abutted against the positioning groove 6 (as shown in fig. 2). Set up a restriction ball 3 in the bottom of movable contact 4 and controlled the constant head tank 6 that runs, make movable contact 4 after three ball 3 of extrusion, the phenomenon of running about the ball 3 at top is difficult for appearing, and protection switch's precision is more accurate, and the mould is difficult for appearing hitting the phenomenon of mould.
As shown in fig. 6, the positioning groove 6 is a hemispherical groove 7. The ball 3 at top contradicts in hemisphere groove 7 to can both play about spacing effect to the ball 3 at top, can play spacing effect around again, spacing effect is showing, makes the phenomenon that the ball 3 at top is more difficult for appearing running, further improves protection switch's precision.
As shown in fig. 5, the positioning slot 6 is an arc-shaped slot 8, and the axis of the positioning slot 6 is parallel to the central line of the two balls 3 at the bottom.
The diameter of the positioning groove 6 is larger than that of the ball 3. Such structure makes constant head tank 6 and ball 3 form the face contact, makes to touch to ground more stably between ball 3 and the movable contact 4, and the phenomenon of running is more difficult for appearing in ball 3.
The positioning groove 6 communicates with the outside with respect to the axial direction. The positioning groove 6 can be more conveniently machined, and the positioning groove 6 can be formed by punching on a common machine.
As shown in fig. 3 and 4, a positioning hole 10 is provided on the travel switch 2, and a positioning rod 9 matched with the positioning groove 6 is provided in the mounting groove 5. The setting up of locating hole 10 and constant head tank 6 makes travel switch 2 can be fixed in mounting groove 5 more steadily, and difficult the emergence is run, makes protection switch's precision higher, and the difficult phenomenon that takes place to hit the mould of mould.
As shown in fig. 3, the housing 1 includes an upper housing 11 and a lower housing 12, the mounting groove 5 is provided on the lower housing 12, and a compression spring 13 is provided between the lower housing 12 and the movable contact 4. The arrangement of the compression spring 13 enables the movable contact 4 to return rapidly, so that the phenomenon that the movable contact 4 is blocked in the shell 1 to cause the die to collide is avoided.
As shown in fig. 4, the lower case 12 is provided with a mounting hole 14 for mounting the compression spring 13. The arrangement of the mounting hole 14 can facilitate the installation and the positioning of the compression spring 13, so that the positioning effect of the compression spring 13 is remarkable and the phenomenon of bending is not easy to occur, and the resetting effect is better.
The metal shell 1 and the metal movable contact 4 are adopted, the shell is designed by all metal and is subjected to a heat treatment process, the mechanical strength, vibration resistance and impact resistance of the metal shell are effectively improved, the service life can exceed 40 ten thousand times, the action precision is less than 0.2 mm, and the action pressure of the metal shell needs to exceed lOKG, so that the misoperation of a die can be avoided, in addition, the interchangeability is good, the metal shell can be interchanged with other types of travel switches under the condition that the sizes of assembly holes are consistent, and no change is needed.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (4)
1. The utility model provides an injection mold protection switch that resets, includes casing (1), travel switch (2) of setting in casing (1), is three ball (3) of triangle-shaped range and is used for extruding three ball (3) and touches movable contact (4) of travel switch (2), movable contact (4) can set up in casing (1) and outside casing (1) is extended to another side of three ball (3) relatively to activity from top to bottom, be equipped with mounting groove (5) of installation travel switch (2), three ball (3) and movable contact (4) in casing (1), characterized by: movable contact (4) are equipped with constant head tank (6) that are used for restricting ball (3) and move about towards one side of ball (3), and ball (3) at the top are contradicted in constant head tank (6), constant head tank (6) are arc wall (8), the axis and the two ball (3) center-line in bottom of constant head tank (6) are parallel to each other, constant head tank (6) communicate with each other with the external world for axial direction.
2. The injection mold reset protection switch of claim 1, wherein: the travel switch (2) is provided with a positioning hole (10), and a positioning rod (9) matched with the positioning groove (6) is arranged in the mounting groove (5).
3. The injection mold reset protection switch of claim 1, wherein: the shell (1) comprises an upper shell (11) and a lower shell (12), the mounting groove (5) is formed in the lower shell (12), and a compression spring (13) is arranged between the lower shell (12) and the movable contact (4).
4. The injection mold reset protection switch of claim 3, wherein: and the lower shell (12) is provided with a mounting hole (14) for mounting a compression spring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510975643.2A CN105328889B (en) | 2015-12-22 | 2015-12-22 | Reset protection switch of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510975643.2A CN105328889B (en) | 2015-12-22 | 2015-12-22 | Reset protection switch of injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105328889A CN105328889A (en) | 2016-02-17 |
| CN105328889B true CN105328889B (en) | 2020-03-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510975643.2A Active CN105328889B (en) | 2015-12-22 | 2015-12-22 | Reset protection switch of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105328889B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191009399A (en) * | 1910-04-18 | 1911-02-02 | Paul Druseidt | Improvements in or relating to Electric Switches. |
| GB191313721A (en) * | 1913-06-13 | 1914-04-02 | Oliver Lucas | Improvements relating to Electric Switches. |
| CN1525510A (en) * | 2003-02-25 | 2004-09-01 | Smk株式会社 | Method for push switch and switch |
| CN202816723U (en) * | 2012-08-14 | 2013-03-20 | 上虞东虞塑料电器有限公司 | Reset switch for protecting injection mold |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR353755A (en) * | 1904-06-01 | 1905-09-20 | Frederick Henry De Veulle | Electric switch |
| JPH0618096B2 (en) * | 1987-01-26 | 1994-03-09 | 新晃電機株式会社 | Pushbutton switch interlock device |
-
2015
- 2015-12-22 CN CN201510975643.2A patent/CN105328889B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191009399A (en) * | 1910-04-18 | 1911-02-02 | Paul Druseidt | Improvements in or relating to Electric Switches. |
| GB191313721A (en) * | 1913-06-13 | 1914-04-02 | Oliver Lucas | Improvements relating to Electric Switches. |
| CN1525510A (en) * | 2003-02-25 | 2004-09-01 | Smk株式会社 | Method for push switch and switch |
| CN202816723U (en) * | 2012-08-14 | 2013-03-20 | 上虞东虞塑料电器有限公司 | Reset switch for protecting injection mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105328889A (en) | 2016-02-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Zhang Zhen Zhen Song Ma Cun, Shangyu District, Shaoxing City, Zhejiang Province Patentee after: SHAOXING SHANGYU DONGYU PLASTIC ELECTRIC APPLIANCE CO.,LTD. Address before: No. 6, Diandian Lane, Xinjian Road, Fenghui Town, Shangyu City, Shaoxing City, Zhejiang Province 312300 Patentee before: SHANGYU DONGYU PLASTIC ELECTRICAL APPLIANCE CO.,LTD. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Injection mold reset protection switch Effective date of registration: 20221204 Granted publication date: 20200317 Pledgee: Industrial and Commercial Bank of China Limited Shangyu sub branch Pledgor: SHAOXING SHANGYU DONGYU PLASTIC ELECTRIC APPLIANCE CO.,LTD. Registration number: Y2022330003417 |