CN209738211U - Novel ejection device of micro injection molding machine - Google Patents
Novel ejection device of micro injection molding machine Download PDFInfo
- Publication number
- CN209738211U CN209738211U CN201821906743.5U CN201821906743U CN209738211U CN 209738211 U CN209738211 U CN 209738211U CN 201821906743 U CN201821906743 U CN 201821906743U CN 209738211 U CN209738211 U CN 209738211U
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- fixed
- thimble
- ejector
- hole
- injection molding
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a novel ejecting device of micro-injection molding machine, including the main part of injection molding machine, the fixed die plate, many horizontal poles and movable mould board, be fixed with fixed mould on the fixed die plate, be fixed with the movable mould on the movable mould board, fixed mould forms the die cavity unanimous with the product profile with the movable mould, the shaping has a plurality of thimble holes on the movable mould, a thimble has been cup jointed in every thimble hole, the shaping has the drive chamber on the movable mould board, the drive intracavity is equipped with a plurality of cylinders and ejector pad, a plurality of cylinders are the pyramid shape and place, every thimble correspondence is provided with a cylinder, wherein be connected with the support frame between two horizontal poles, be fixed with the fore-set on the support frame, the end fixing of fore-set has the kicking block, the kick. 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 invention relates to the technical field of injection molds, in particular to a novel ejection device of a micro 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 invention content is as follows:
The invention aims to overcome the defects of the prior art and provides a novel ejection device of a micro injection molding machine, which does not need independent driving power and pushes an ejector rod through the relative motion of a non-moving part and a moving part in the mold opening process so as to eject and separate plastic products.
The scheme for solving the technical problems is as follows:
A novel 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 movable templates, wherein the fixed template is fixed on the right side of the main body through the cross rods, and the movable templates are connected to the cross rods in a sliding manner and positioned between the main body and the fixed template; the movable mould is characterized in that a fixed mould and a movable mould are fixed on the fixed mould plate, a cavity consistent with the product outline is formed by the left end surface of the fixed mould and the right end surface of the movable mould, a sprue communicated with the cavity is formed on the fixed mould, a plurality of thimble holes communicated with the cavity are formed on the movable mould, 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, the top rod is 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 mould plate, a plurality of cylinders and push blocks are arranged in the driving cavity, and the cylinders are positioned between the end parts of the push, the multiple cylinders are placed in a pyramid shape, the ejector rod of each ejector pin is correspondingly provided with one cylinder, and the front end and the rear end of each cylinder are respectively pressed against the inner wall of the driving cavity; the lateral wall of the driving cavity is formed with a flange used for blocking the sliding block, a support frame is connected between the two transverse rods in a sliding mode and fixed on the transverse rods through screws, a top column is fixed on the right side wall of the support frame, a top block is fixed at the end of the top column, and the top block is opposite to the push block.
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 front side wall and the rear side wall of the driving cavity are respectively fixed with a slide rail arranged in the left-right direction, the front side wall and the rear side wall of the push block are respectively formed with a slide groove, and the slide grooves are inserted and sleeved on the slide rails.
The maximum distance between two adjacent cylinders in the same row is smaller than the diameter of the cylinders.
The invention has the following outstanding effects: 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 top view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
fig. 3 is a cross-sectional view taken along line B-B of fig. 2.
the specific implementation mode is as follows:
in the embodiment, as shown in fig. 1 to 3, a novel 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 bars 13 and a movable template 14, wherein the fixed template 12 is fixed on the right side of the main body 11 through the cross bars 13, and the movable template 14 is slidably connected to the cross bars 13 and is positioned between the main body 11 and the fixed template 12; 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 surface of the fixed die 21 and the right end surface of the movable die 22, a sprue 211 communicated with the cavity 201 is formed on the fixed die 21, a plurality of thimble holes 221 communicated with the cavity 201 are formed on the movable die 22, the cross section of each thimble hole 221 is in an I shape, a thimble 23 is sleeved in each thimble hole 221, each thimble 23 comprises a top 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 the connecting rod 232, two ends of the spring 24 are respectively pressed on the right end surface of the boss 233 and the left step surface of the thimble hole 221, a driving cavity 141 with a left 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 plurality of cylinders 25 and push blocks 26 are arranged in the driving cavity 141, the cylinders 25 are positioned between the push blocks 26 and the end parts of the push rods 234 of the ejector pins 23 penetrating through the through holes 142, the cylinders 25 are placed in a pyramid shape, one cylinder 25 is correspondingly arranged on the push rod 234 of each ejector pin 23, and the front end and the rear end of each cylinder 25 are respectively pressed against the inner wall of the driving cavity 141; the inner wall of the outer side of the driving cavity 141 is formed with a rib 143 for blocking the push block 26, a support frame 27 is connected between the two cross rods 13 in a sliding manner, the support frame 27 is fixed on the cross rods 13 through screws, a top column 28 is fixed on the right side wall of the support frame 27, an end part of the top column 28 is fixed with a push block 29, and the push block 29 is opposite to the push block 26.
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 31, the movable mold 22 is formed with a guide hole 222 matching with the guide rod 31, and the guide rod 31 is inserted into the guide hole 222.
Furthermore, a slide rail 32 is fixed on the front side wall and the rear side wall of the driving cavity 141 respectively, the slide rail 32 is arranged in the left-right direction, a slide groove 261 is formed on each of the front side wall and the rear side wall of the push block 26, and the slide groove 261 is inserted and sleeved on the slide rail 32.
furthermore, the maximum distance between two adjacent cylinders 25 in the same row is smaller than the diameter of the cylinders 25.
the working principle is as follows: the cavity 201 is charged 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, the ejector block 29 contacts with the ejector block 26 and pushes the ejector block 26 to the right relatively, the ejector block 26 pushes the plurality of cylinders 25 to approach to the ejector pins 234 of the plurality of ejector pins, when the cylinders 25 touch the ejector pins 234, the resistance is large or small, the cylinders 25 are automatically arranged to make the thrust of each ejector pin 23 equal, and then under the condition that the movable mold plate 1 moves left continuously, the ejector pins 23 are ejected to the right so as to eject the product out of the cavity 201. The plurality of cylinders 25 are arranged in a pyramid shape, so that the pressure of each thimble can be uniform, and the influence on a product caused by overlarge pressure of a certain thimble is prevented.
Finally, the above embodiments are only for illustrating the present invention and not for limiting the present invention, and those skilled in the 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 scope of the present invention should be defined by the claims.
Claims (5)
1. A novel 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 mode 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 outline 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), a plurality of thimble holes (221) communicated with the cavity (201) are formed on the movable die (22), the cross section of each thimble hole (221) is in an I shape, a thimble (23) is sleeved in each thimble hole (221), each thimble (23) comprises a top head (231) and a connecting rod (232) which are arranged from right to left, a boss (233) and a thimble rod (234), a spring (24) is sleeved on the connecting rod (232), and two ends of the spring (24) are respectively pressed on the right end face of the boss (233) and the left side 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 an ejector pin hole (221) are formed in the movable template (14), a plurality of cylinders (25) and push blocks (26) are arranged in the driving cavity (141), the cylinders (25) are located between the push blocks (26) and the end parts of the ejector pins (234) of the ejector pins (23) penetrating through the through hole (142), the cylinders (25) are placed in a pyramid shape, the ejector pin (234) of each ejector pin (23) is correspondingly provided with one cylinder (25), and the front end and the rear end of each cylinder (25) are respectively pressed against the inner wall of the driving cavity (141); the shaping has flange (143) that are used for blockking ejector pad (26) on the outside inner wall of drive chamber (141), and sliding connection has support frame (27) between two horizontal poles (13) wherein, and support frame (27) pass through the fix with screw on horizontal pole (13), be fixed with fore-set (28) on the right side wall of support frame (27), the end fixing of fore-set (28) has ejector pad (29), and ejector pad (29) are just to ejector pad (26).
2. The novel ejection device of a micro-injection molding machine according to claim 1, characterized in that: 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 novel ejection device of a micro-injection molding machine according to claim 1, characterized in that: the fixed die (21) is fixedly provided with a guide rod (31), the movable die (22) is formed with a guide hole (222) matched with the guide rod (31), and the guide rod (31) is inserted in the guide hole (222).
4. The novel ejection device of a micro-injection molding machine according to claim 1, characterized in that: the front side wall and the rear side wall of the driving cavity (141) are respectively fixed with a sliding rail (32) arranged in the left-right direction, the front side wall and the rear side wall of the push block (26) are respectively formed with a sliding groove (261), and the sliding grooves (261) are inserted and sleeved on the sliding rails (32).
5. The novel ejection device of a micro-injection molding machine according to claim 1, characterized in that: the maximum distance between two adjacent cylinders (25) in the same row is smaller than the diameter of the cylinders (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821906743.5U CN209738211U (en) | 2018-11-21 | 2018-11-21 | Novel ejection device of micro injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821906743.5U CN209738211U (en) | 2018-11-21 | 2018-11-21 | Novel ejection device of micro injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209738211U true CN209738211U (en) | 2019-12-06 |
Family
ID=68700210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821906743.5U Active CN209738211U (en) | 2018-11-21 | 2018-11-21 | Novel ejection device of micro injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209738211U (en) |
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2018
- 2018-11-21 CN CN201821906743.5U patent/CN209738211U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20191231 Address after: 215311 Building 1, No. 886, Hongyang Road, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Suzhou Xinxuda Precision Mould Technology Co., Ltd Address before: 351100 4th Floor, 68 Lanting Street, Goutou New Village, Xialin Street, Chengxiang District, Putian City, Fujian Province Patentee before: Putian Yang Liu Trading Co., Ltd. |