CN209794455U - ejection device of micro injection molding machine - Google Patents
ejection device of micro injection molding machine Download PDFInfo
- Publication number
- CN209794455U CN209794455U CN201821912768.6U CN201821912768U CN209794455U CN 209794455 U CN209794455 U CN 209794455U CN 201821912768 U CN201821912768 U CN 201821912768U CN 209794455 U CN209794455 U CN 209794455U
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- fixed
- hole
- thimble
- die
- movable
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Abstract
The utility model discloses an ejection device of a micro injection molding machine, which comprises a main body of the injection molding machine, a fixed template, a plurality of cross rods and a movable template; a fixed die is fixed on the fixed template, a movable die is fixed on the movable template, a cavity consistent with the product outline is formed by the left end surface of the fixed die and the right end surface of the movable die, two thimble holes communicated with the cavity are formed on the movable die, a thimble is sleeved in the thimble hole and comprises a top head, a connecting rod, a boss and a mandril, a spring is sleeved on the connecting rod, a driving cavity is formed on the movable template, a slide block is arranged in the driving cavity, a U-shaped hole is formed in the slide block, a plurality of steel balls are filled in the U-shaped hole, and the mandril is sleeved in the U-shaped hole in a plugging manner; the left side of the sliding block is provided with a top column. The utility model discloses do not need independent drive power, promote the ejector pin through the relative motion of die sinking in-process non-moving member and moving member, make plastic products ejecting break away from.
Description
the technical field is as follows:
The utility model relates to an injection mold technical field, concretely relates to ejecting device of miniature injection molding machine.
Background art:
The mold opening and closing part of the injection molding machine of the ejection device is linked with the mold to realize the ejection and falling functions of the plastic products. The conventional ejection devices are usually provided with independent driving power, such as hydraulic pressure or pneumatic pressure. Although the hydraulic ejection device is convenient for adjusting speed, position and stroke, the result is complex and the force is small. Although the method of blowing out the plastic product by utilizing the compressed air pressure does not leave marks on the plastic product, an air passage and an air hole are required to be arranged on the die, and an air source is required to be additionally arranged.
The utility model has the following contents:
The utility model aims at overcoming prior art not enough, providing a micro-injection molding machine's ejecting device, it does not need independent drive power, promotes the ejector pin through the relative motion of non-moving member and moving member in the die sinking process, makes plastic products ejecting break away from.
The utility model provides a technical problem's scheme is:
An ejection device of a micro injection molding machine comprises a main body of the injection molding machine, a fixed template, a plurality of cross rods and a movable template, wherein the fixed template is fixed on the right side of the main body through the cross rods; a fixed die is fixed on the fixed template, a movable die is fixed on the movable template, a cavity consistent with the product outline is formed by the left end surface of the fixed die and the right end surface of the movable die, a sprue communicated with the cavity is formed on the fixed die, two thimble holes communicated with the cavity are formed on the movable die, the cross section of each thimble hole is in an I shape, a thimble is sleeved in each thimble hole and comprises a top head, a connecting rod, a boss and a thimble rod which are arranged from right to left, a spring is sleeved on the connecting rod, two ends of the spring are respectively pressed on the right end surface of the boss and the left step surface of the thimble hole, a driving cavity with an opening on the left side and a through hole for communicating the driving cavity and the thimble hole are formed on the movable template, a slide block is arranged in the driving cavity, a U-shaped hole with an opening on the right side is formed on the slide block, and a plurality of, the ejector rods of the two ejector pins penetrate through the extending ends of the corresponding through holes and are respectively inserted and sleeved at the two ends of the U-shaped hole; the left side of slider is equipped with the fore-set, and the fore-set is just to the slider, the fore-set is fixed in the main part.
the outer wall of the ejector head is matched with the inner wall of the right end hole of the ejector pin hole, the left end face of the ejector head is pressed against the right side step face of the ejector pin hole, and the right end of the ejector head is flush with the left side wall of the cavity.
The fixed die is fixedly provided with a guide rod, the movable die is provided with a guide hole matched with the guide rod in a forming mode, and the guide rod is inserted in the guide hole in a sleeved mode.
The upper side wall and the lower side wall of the driving cavity are respectively fixed with a slide rail arranged in the left-right direction, the upper side wall and the lower side wall of the slide block are respectively provided with a slide groove, the slide grooves are inserted and sleeved on the slide rails, and the outer end face of the driving cavity is fixed with a baffle plate used for blocking the slide block.
and lubricating grease is filled in the U-shaped hole.
The utility model discloses an outstanding effect is: compared with the prior art, the mold opening device does not need independent driving power, and the ejector rod is pushed through the relative motion of the non-moving part and the moving part in the mold opening process, so that the plastic product is ejected and separated.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a partially enlarged view of fig. 1 about a.
The specific implementation mode is as follows:
Embodiments, as shown in fig. 1 to 2, an ejection apparatus of a micro injection molding machine includes a main body 11 of the injection molding machine, a fixed mold plate 12, a plurality of cross bars 13 and a movable mold plate 14, wherein the fixed mold plate 12 is fixed on the right side of the main body 11 through the cross bars 13, the movable mold plate 14 is slidably connected to the cross bars 13 and located between the main body 11 and the fixed mold plate 12, and a hydraulic system of the injection molding machine can drive the movable mold plate 14 to move on the cross bars 13; a fixed die 21 is fixed on the fixed die plate 12, a movable die 22 is fixed on the movable die plate 14, a cavity 201 consistent with the product contour is formed by the left end face of the fixed die 21 and the right end face of the movable die 22, a sprue 211 communicated with the cavity 201 is formed on the fixed die 21, two thimble holes 221 communicated with the cavity 201 are formed on the movable die 22, the cross section of the thimble hole 221 is in an I shape, a thimble 23 is sleeved in the thimble hole 221, the thimble 23 comprises a top 231, a connecting rod 232, a boss 233 and a mandril 234 which are arranged from right to left, a spring 24 is sleeved on the connecting rod 232, two ends of the spring 24 are respectively pressed on the right end face of the boss 233 and the left side step face of the thimble hole 221, a driving cavity 141 with a left side opening and a through hole 142 for communicating the driving cavity 141 and the thimble hole 221 are formed on the movable die plate 14, a slide block 25 is arranged in the driving cavity 141, the slider 25 is formed with a U-shaped hole 251 with an opening at the right side, a plurality of steel balls are filled in the U-shaped hole 251, and the ejector rods 234 of the two ejector pins 23 penetrate through the extending ends of the corresponding through holes 142 and are respectively inserted and sleeved at the two ends of the U-shaped hole 251; the left side of slider 25 is equipped with fore-set 26, and fore-set 26 is just to slider 25, fore-set 26 is fixed on main part 11.
Furthermore, the outer wall of the plug 231 is matched with the inner wall of the right end hole of the plug hole 221, the left end face of the plug 231 is pressed against the right step face of the plug hole 221, and the right end of the plug 231 is flush with the left side wall of the cavity 201.
Furthermore, the fixed mold 21 is fixedly provided with a guide rod 27, the movable mold 22 is formed with a guide hole 222 matched with the guide rod 27, and the guide rod 27 is inserted and sleeved in the guide hole.
Furthermore, a slide rail 28 arranged in the left-right direction is fixed on the upper side wall and the lower side wall of the driving cavity 141 respectively, a slide groove 252 is formed on each of the upper side wall and the lower side wall of the slider 25, the slide groove 252 is inserted into the slide rail 28, and a baffle 29 for blocking the slider 25 is fixed on the outer end surface of the driving cavity 141.
Furthermore, the U-shaped hole 251 is filled with grease.
The working principle is as follows: the cavity 201 is fed from the gate 211, after the product is molded by injection, the movable mold plate 14 drives the movable mold 22 to move left, the movable mold is separated from the fixed mold 21 and takes away the molded product, when the movable mold plate 14 moves left continuously, the ejector post 26 contacts with the slide block 25 and then pushes the slide block 25 to the right, the slide block 25 drives the steel ball to move right, the steel ball pushes against the ejector rod 234 of the ejector pin, the ejector head 231 moves right to push out the product, and the steel ball can enable the two ejector pins to act on the product simultaneously and enable the pressure of the two ejector pins to be equal when the two ejector pins push against the product.
Finally, the above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (5)
1. An ejection device of a micro injection molding machine comprises a main body (11) of the injection molding machine, a fixed template (12), a plurality of cross rods (13) and movable templates (14), wherein the fixed template (12) is fixed on the right side of the main body (11) through the cross rods (13), and the movable templates (14) are connected to the cross rods (13) in a sliding manner and located between the main body (11) and the fixed template (12); the method is characterized in that: a fixed die (21) is fixed on the fixed die plate (12), a movable die (22) is fixed on the movable die plate (14), a cavity (201) consistent with the product profile is formed by the left end face of the fixed die (21) and the right end face of the movable die (22), a sprue (211) communicated with the cavity (201) is formed on the fixed die (21), two thimble holes (221) communicated with the cavity (201) are formed on the movable die (22), the cross section of each thimble hole (221) is I-shaped, a thimble (23) is sleeved in each thimble hole (221), each thimble (23) comprises a top head (231), a connecting rod (232), a boss (233) and a thimble rod (234) which are arranged from right to left, a spring (24) is sleeved on each connecting rod (232), and two ends of each spring (24) are respectively pressed on the right end face of the boss (233) and the left step face of the thimble hole (221), a driving cavity (141) with an opening at the left side and a through hole (142) for communicating the driving cavity (141) with a thimble hole (221) are formed in the movable template (14), a sliding block (25) is arranged in the driving cavity (141), a U-shaped hole (251) with an opening at the right side is formed in the sliding block (25), a plurality of steel balls are filled in the U-shaped hole (251), and the extending ends of the thimbles (234) of the two thimbles (23) penetrate through the corresponding through holes (142) and are respectively inserted and sleeved at the two ends of the U-shaped hole (251); the left side of slider (25) is equipped with fore-set (26), and fore-set (26) are just to slider (25), fore-set (26) are fixed on main part (11).
2. The ejector apparatus of a micro-injection molding machine according to claim 1, wherein: the outer wall of the ejector head (231) is matched with the inner wall of the right end hole of the ejector pin hole (221), the left end face of the ejector head (231) is pressed against the right side step face of the ejector pin hole (221), and the right end of the ejector head (231) is flush with the left side wall of the cavity (201).
3. the ejector apparatus of a micro-injection molding machine according to claim 1, wherein: the fixed die (21) is fixedly provided with a guide rod (27), the movable die (22) is formed with a guide hole (222) matched with the guide rod (27), and the guide rod (27) is inserted and sleeved in the guide hole.
4. The ejector apparatus of a micro-injection molding machine according to claim 1, wherein: the upper side wall and the lower side wall of the driving cavity (141) are respectively fixed with a slide rail (28) arranged in the left-right direction, the upper side wall and the lower side wall of the slide block (25) are respectively provided with a slide groove (252), the slide grooves (252) are inserted and sleeved on the slide rails (28), and the outer end face of the driving cavity (141) is fixed with a baffle (29) used for blocking the slide block (25).
5. The ejector apparatus of a micro-injection molding machine according to claim 1, wherein: and lubricating grease is filled in the U-shaped hole (251).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821912768.6U CN209794455U (en) | 2018-11-21 | 2018-11-21 | ejection device of micro injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821912768.6U CN209794455U (en) | 2018-11-21 | 2018-11-21 | ejection device of micro injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209794455U true CN209794455U (en) | 2019-12-17 |
Family
ID=68816716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821912768.6U Expired - Fee Related CN209794455U (en) | 2018-11-21 | 2018-11-21 | ejection device of micro injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209794455U (en) |
-
2018
- 2018-11-21 CN CN201821912768.6U patent/CN209794455U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200120 Address after: 210032 Jiangsu province long Pukou District of Nanjing City Road No. 22 Yumin garden 058 Room 101 -113 Patentee after: NANJING SIKAI RUBBER AND PLASTIC PRODUCT Co.,Ltd. Address before: 510000 Guangzhou High-tech Industrial Development Zone Science Avenue 231, 233 Skirt Building B1B2, 1st, 2nd, 3rd and 4th floors Patentee before: BOAO ZONGHENG NETWORK TECHNOLOGY Co.,Ltd. Effective date of registration: 20200120 Address after: 510000 Guangzhou High-tech Industrial Development Zone Science Avenue 231, 233 Skirt Building B1B2, 1st, 2nd, 3rd and 4th floors Patentee after: BOAO ZONGHENG NETWORK TECHNOLOGY Co.,Ltd. Address before: 314023 Beijubang No. 3, Liangsancun, Honghe Town, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee before: JIAXING LIUHE PLASTIC PRODUCTS Co.,Ltd. |
|
| 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: 20191217 Termination date: 20201121 |