CN113752501A - Mould closing mechanism of injection molding machine - Google Patents
Mould closing mechanism of injection molding machine Download PDFInfo
- Publication number
- CN113752501A CN113752501A CN202010500543.5A CN202010500543A CN113752501A CN 113752501 A CN113752501 A CN 113752501A CN 202010500543 A CN202010500543 A CN 202010500543A CN 113752501 A CN113752501 A CN 113752501A
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- Prior art keywords
- die
- positioning rod
- movable
- injection molding
- fixed
- Prior art date
- 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.)
- Pending
Links
- 238000001746 injection moulding Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 244000208734 Pisonia aculeata Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Images
Classifications
-
- 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/68—Mould opening, closing or clamping devices hydro-mechanical
-
- 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
- B29C45/76—Measuring, controlling or regulating
- B29C45/80—Measuring, controlling or regulating of relative position of mould parts
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76177—Location of measurement
- B29C2945/76224—Closure or clamping unit
- B29C2945/76227—Closure or clamping unit mould platen
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76344—Phase or stage of measurement
- B29C2945/76387—Mould closing
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a die assembly mechanism of an injection molding machine, which comprises a base, die adjusting seats, pull rods, movable die plates, fixed die plates and fixed seats, wherein the die adjusting seats and the fixed seats are respectively and fixedly arranged on two sides of the upper end of the base, the fixed die plates are fixedly arranged on the inner sides of the fixed seats, the four pull rods are distributed at four vertex angles in a rectangular shape, one ends of the pull rods are fixedly connected with the die adjusting seats, the other ends of the pull rods are fixedly connected with the fixed die plates, the movable die plates are connected onto the four pull rods in a sliding manner, positioning rod fixers are arranged at the upper ends of the movable die plates, one sides of the positioning rod fixers, close to the fixed die plates, are connected with positioning rods, and positioning rod detectors are arranged at the upper ends of the movable die plates. The movable template in the invention has uniform stress distribution, fast and stable die assembly and demolding processes and high stability, and can be used for effectively improving the positioning precision in the die assembly process and ensuring the injection molding effect if dislocation deviation exists before die assembly.
Description
Technical Field
The invention relates to the field of injection molding machines, in particular to a mold clamping mechanism of an injection molding machine.
Background
An injection molding machine is also known as an injection molding machine or an injection machine. It is a main forming equipment for making various shaped plastic products from thermoplastic plastics or thermosetting plastics by using plastic forming mould. The device is divided into a vertical type, a horizontal type and a full-electric type. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.
The existing injection molding machine is in the die closing process, the movable template is directly pushed by the die closing cylinder to close the die, the movable template only receives the pushing force of one point, the condition of uneven stress is easy to occur, the stability of the die closing process is not enough, the positioning of the movable template is not accurate enough, the dislocation deviation exists between the movable template and the fixed template easily, and the final quality of injection molding finished products is influenced.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a mold clamping mechanism of an injection molding machine, which is used to solve the problems of inaccurate mold clamping and positioning and misalignment caused by uneven distribution of driving force and insufficient stability in the mold clamping process of the injection molding machine in the prior art.
In order to achieve the above and other related objects, the invention provides a mold clamping mechanism of an injection molding machine, comprising a base, a mold adjusting seat, four pull rods, a movable mold plate, a fixed mold plate and a fixed seat, wherein the mold adjusting seat and the fixed seat are respectively and fixedly arranged at two sides of the upper end of the base, the fixed mold plate is fixedly arranged at the inner side of the fixed seat, the four pull rods are distributed at four vertex angles in a rectangular shape, one end of each pull rod is fixedly connected with the mold adjusting seat, the other end of each pull rod is fixedly connected with the fixed mold plate, the movable mold plate is slidably connected onto the four pull rods, a positioning rod fixer is arranged at the upper end of the movable mold plate, one side of the positioning rod fixer, which is close to the fixed mold plate, is connected with a positioning rod, a positioning rod detector is arranged at the upper end of the movable mold plate, four groups of guide push rods are arranged at one side of the movable mold plate, which is close to the mold adjusting seat, and the guide push rods are distributed in a rectangular array, the middle section of each group of guide push rods is a slide rod, a push-pull plate is sleeved on the four slide rods in a sliding mode, a die closing cylinder is installed on the die adjusting seat, and an output shaft of the die closing cylinder is fixedly connected with the push-pull plate.
Preferably, the positioning rod detector is internally provided with a positioning hole, the aperture of the positioning hole is larger than the diameter of the positioning rod, and the depth of the positioning hole is larger than the length of the positioning rod.
Preferably, when the die closing cylinder pushes the movable die plate and the fixed die plate to be closed, the positioning rod extends into the positioning hole and is not in contact with the inner wall of the positioning rod detector.
Preferably, a speed sensor is further installed on one side of the positioning rod detector close to the positioning rod.
5. The clamping mechanism of an injection molding machine as claimed in claim 1, wherein: and two ends of the sliding rod are sleeved with buffer washers.
Preferably, the upper end of the base is provided with a slide rail, the bottom of the movable template is connected with a supporting slide block, and the supporting slide block is connected with the slide rail in a sliding manner.
Preferably, the center of the movable template is fixedly provided with an ejection cylinder, and the end surface of the movable template close to the fixed template is provided with an ejection cylinder clearance groove.
Preferably, the end surface of the die adjusting base close to the movable die plate is provided with push rod avoiding grooves corresponding to the guide push rods one to one.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the four groups of guide push rods and the push-pull plate are arranged, the die assembly cylinder pushes the push-pull plate to move on the slide rod, and then the push force or the pull force is transmitted to the four guide push rods simultaneously, so that the movable die plate is uniformly stressed, the die assembly and demolding processes are rapid and stable, and the stability is high; simultaneously through setting up locating lever and locating lever detector, can detect whether there is the dislocation deviation movable mould board and fixed die plate before the compound die, effectively improved the positioning accuracy of compound die in-process, guaranteed the effect of moulding plastics.
Drawings
The invention is described in further detail below with reference to specific embodiments and with reference to the following drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a positioning rod and a positioning rod detector according to the present invention;
FIG. 3 is a schematic diagram of the positioning rod and the positioning rod detector according to the present invention;
FIG. 4 is a side view of the push-pull plate of the present invention
FIG. 5 is a schematic illustration of the clamping process of the present invention;
FIG. 6 is a schematic illustration of the demolding process of the present invention.
Wherein the reference numerals are specified as follows: the device comprises a base 1, a die adjusting base 2, a push rod avoiding groove 2-1, a pull rod 3, a movable die plate 4, an ejection cylinder avoiding groove 4-1, a fixed die plate 5, a fixed seat 6, a positioning rod fixer 7, a positioning rod 8, a positioning rod detector 9, a positioning hole 9-1, a guide push rod 10, a sliding rod 10-1, a buffer gasket 10-2, a push-pull plate 11, a die assembly cylinder 12, a speed sensor 13, a sliding rail 14, a support slider 15 and an ejection cylinder 16.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure herein.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used to limit the conditions and conditions of the present disclosure, so that the present disclosure is not technically significant, and any structural modifications, ratio changes or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1 and 4, the invention provides a mold clamping mechanism of an injection molding machine, which comprises a base 1, a mold adjusting seat 2, pull rods 3, a movable mold plate 4, fixed mold plates 5 and fixed seats 6, wherein the mold adjusting seat 2 and the fixed seats 6 are respectively and fixedly arranged on two sides of the upper end of the base 1, the fixed mold plates 5 are fixedly arranged on the inner sides of the fixed seats 6, four pull rods 3 are arranged and are distributed at four vertex angles in a rectangular shape, one end of each pull rod 3 is fixedly connected with the mold adjusting seat 2, the other end of each pull rod is fixedly connected with the fixed mold plate 5, the movable mold plate 4 is slidably connected on the four pull rods 3, a positioning rod fixer 7 is arranged at the upper end of the movable mold plate 4, one side of the positioning rod fixer 7, which is close to the fixed mold plate 5, is connected with a positioning rod 8, a positioning rod detector 9 is arranged at the upper end of the movable mold plate 4, four groups of guide push rods 10 are arranged at one side of the movable mold plate 4, which is close to the mold adjusting seat 2, the guide push rods 10 are distributed in a rectangular array, the middle section of each group of guide push rods 10 is a slide rod 10-1, a push-pull plate 11 is sleeved on the four slide rods 10-1 in a sliding mode, a mold closing cylinder 12 is installed on the mold adjusting base 2, and an output shaft of the mold closing cylinder 12 is fixedly connected with the push-pull plate 11.
In this embodiment, as shown in fig. 2 and 3, a positioning hole 9-1 is formed in the positioning rod detector 9 and is coaxial with the positioning rod 8, the aperture of the positioning hole 9-1 is larger than the diameter of the positioning rod 8, and the depth of the positioning hole 9-1 is larger than the length of the positioning rod 8.
Further, when the mold closing cylinder 12 pushes the movable mold plate 4 and the fixed mold plate 5 to close the mold, the positioning rod 8 extends into the positioning hole 9-1 and does not contact with the inner wall of the positioning rod detector 9. And when the positioning rod 8 contacts with the inner wall of the positioning rod detector 9 in the stretching process, an alarm can give an alarm to remind a worker that the movable template 4 and the fixed template 5 have dislocation deviation at the moment, so that the position of the movable template is adjusted.
Further, a speed sensor 13 is attached to the side of the positioning-lever detector 9 close to the positioning lever 8, and detects the speed of the movement of the positioning lever 8.
In this embodiment, the two ends of the sliding rod 10-1 are sleeved with the buffer washers 10-2, and when the push-pull plate 11 slides to the end of the sliding rod 10-1, the push-pull plate 11 contacts with the buffer washers 10-2, so as to reduce impact.
In this embodiment, slide rail 14 is installed to the upper end of base 1, and the bottom of movable mould board 4 is connected with supporting slide 15, and supporting slide 15 and slide rail 14 sliding connection, supporting slide 15 have played the supporting role to movable mould board 4, have still guaranteed that movable mould board 4 smoothly moves on pull rod 3 smoothly steadily.
In the embodiment, the center of the movable template 4 is fixedly provided with the ejection cylinder 16, and the end surface of the movable template 4 close to the fixed template 5 is provided with the ejection cylinder avoiding groove 4-1 to prevent the ejection cylinder 16 from colliding and interfering with the movable template 4 when in operation.
In this embodiment, the end surface of the die adjusting seat 2 close to the movable die plate 4 is provided with push rod avoiding grooves 2-1 corresponding to the guide push rods 10 one by one, so as to leave a moving space for the guide push rods 10 when retreating. When the push-pull plate 11 is pulled to the limit position after the die closing cylinder 12, the guide push rod 10 extends into the push rod avoiding groove 2-1 to avoid collision with the die adjusting seat 2.
The working principle is as follows:
during die assembly, as shown in fig. 5, a die assembly cylinder 12 starts to operate, a push-pull plate 11 is pushed to slide on a slide rod 10-1 until the push-pull plate reaches a pushed limit position, at the moment, four guide push rods 10 transmit uniform thrust to a movable die plate 4, so that the movable die plate 4 moves towards a direction close to a fixed die plate 5 along a pull rod 3 until die assembly is completed, in the process, a positioning rod 8 extends into a positioning hole 9-1, and when the positioning rod 8 contacts with the inner wall of a positioning rod detector 9 in the extending process, the dislocation deviation between the movable die plate 4 and the fixed die plate 5 is indicated, an alarm is sent out, and a worker is reminded of adjusting the position of the movable die plate 4;
as shown in fig. 6, after mold closing is completed, injection molding is started by injecting molten fluid plastic into the mold, demolding is started after the injection molding is completed, the mold closing cylinder 12 operates to pull back the push-pull plate 11, so that the push-pull plate 11 moves to the pull-back limit position at the slide rod 10-1, then the movable mold plate 4 is pulled to retreat by the four guide push rods 10, then the ejection cylinder 16 extends forwards, and the injection molded product is ejected from the mold, so that demolding is completed.
In conclusion, the movable template in the invention has uniform stress distribution, fast and stable die closing and demolding processes and high stability, and can be used for effectively improving the positioning precision in the die closing process and ensuring the injection molding effect if dislocation deviation exists before die closing. Therefore, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A mold clamping mechanism of an injection molding machine is characterized by comprising a base (1), mold adjusting seats (2), pull rods (3), movable mold plates (4), fixed mold plates (5) and fixed seats (6), wherein the mold adjusting seats (2) and the fixed seats (6) are fixedly arranged on two sides of the upper end of the base (1) respectively, the fixed mold plates (5) are fixedly arranged on the inner sides of the fixed seats (6), the four pull rods (3) are distributed at four vertex angles in a rectangular manner, one ends of the pull rods (3) are fixedly connected with the mold adjusting seats (2), the other ends of the pull rods are fixedly connected with the fixed mold plates (5), the movable mold plates (4) are slidably connected onto the four pull rods (3), positioning rod fixing devices (7) are arranged at the upper ends of the movable mold plates (4), and positioning rods (8) are connected to one sides, close to the fixed mold plates (5), of the positioning rod fixing devices (7), the positioning rod detector (9) is installed at the upper end of the movable template (4), four groups of guide push rods (10) are installed on one side, close to the die adjusting seat (2), of the movable template (4), the guide push rods (10) are distributed in a rectangular array mode, the middle section of each guide push rod (10) is a slide rod (10-1), a push-pull plate (11) is sleeved on the four slide rods (10-1) in a sliding mode, a die closing cylinder (12) is installed on the die adjusting seat (2), and an output shaft of the die closing cylinder (12) is fixedly connected with the push-pull plate (11).
2. The clamping mechanism of an injection molding machine as claimed in claim 1, wherein: the positioning rod detector (9) is internally provided with a positioning hole (9-1) which is coaxial with the positioning rod (8), the aperture of the positioning hole (9-1) is larger than the diameter of the positioning rod (8), and the depth of the positioning hole (9-1) is larger than the length of the positioning rod (8).
3. The clamping mechanism of an injection molding machine as claimed in claim 2, wherein: when the die closing cylinder (12) pushes the movable die plate (4) and the fixed die plate (5) to close the die, the positioning rod (8) extends into the positioning hole (9-1) and is not in contact with the inner wall of the positioning rod detector (9).
4. The clamping mechanism of an injection molding machine as claimed in claim 3, wherein: and a speed sensor (13) is also arranged on one side of the positioning rod detector (9) close to the positioning rod (8).
5. The clamping mechanism of an injection molding machine as claimed in claim 1, wherein: two ends of the sliding rod (10-1) are sleeved with buffer washers (10-2).
6. The clamping mechanism of an injection molding machine as claimed in claim 1, wherein: slide rail (14) are installed to the upper end of base (1), the bottom of movable mould board (4) is connected with supporting slide (15), supporting slide (15) and slide rail (14) sliding connection.
7. The clamping mechanism of an injection molding machine as claimed in claim 1, wherein: the center of the movable template (4) is fixedly provided with an ejection cylinder (16), and the end surface of the movable template (4) close to the fixed template (5) is provided with an ejection cylinder clearance groove (4-1).
8. The clamping mechanism of an injection molding machine as claimed in claim 1, wherein: push rod avoiding grooves (2-1) which correspond to the guide push rods (10) one to one are formed in the end face, close to the movable template (4), of the die adjusting seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010500543.5A CN113752501A (en) | 2020-06-04 | 2020-06-04 | Mould closing mechanism of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010500543.5A CN113752501A (en) | 2020-06-04 | 2020-06-04 | Mould closing mechanism of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113752501A true CN113752501A (en) | 2021-12-07 |
Family
ID=78783670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010500543.5A Pending CN113752501A (en) | 2020-06-04 | 2020-06-04 | Mould closing mechanism of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113752501A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203592643U (en) * | 2013-11-29 | 2014-05-14 | 佛山市顺德区震德塑料机械有限公司 | Two-plate type injection molding machine and die assembly structure |
| CN206926218U (en) * | 2017-06-01 | 2018-01-26 | 诸暨搏远网络科技有限公司 | Nozzle contact control device for injection molding machine |
| CN207711303U (en) * | 2017-12-14 | 2018-08-10 | 佛山市南海波丽塑料包装有限公司 | A kind of Clamping Device of Injection Moulding Machine |
| CN208133453U (en) * | 2018-03-22 | 2018-11-23 | 长沙市端华塑胶有限公司 | A kind of vertical bakelite molding machine |
| CN209775364U (en) * | 2019-03-27 | 2019-12-13 | 上海鼎瑞模具科技有限公司 | Mold core withdrawing mechanism |
-
2020
- 2020-06-04 CN CN202010500543.5A patent/CN113752501A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203592643U (en) * | 2013-11-29 | 2014-05-14 | 佛山市顺德区震德塑料机械有限公司 | Two-plate type injection molding machine and die assembly structure |
| CN206926218U (en) * | 2017-06-01 | 2018-01-26 | 诸暨搏远网络科技有限公司 | Nozzle contact control device for injection molding machine |
| CN207711303U (en) * | 2017-12-14 | 2018-08-10 | 佛山市南海波丽塑料包装有限公司 | A kind of Clamping Device of Injection Moulding Machine |
| CN208133453U (en) * | 2018-03-22 | 2018-11-23 | 长沙市端华塑胶有限公司 | A kind of vertical bakelite molding machine |
| CN209775364U (en) * | 2019-03-27 | 2019-12-13 | 上海鼎瑞模具科技有限公司 | Mold core withdrawing mechanism |
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Application publication date: 20211207 |