CN210590425U - Watchcase injection molding device - Google Patents
Watchcase injection molding device Download PDFInfo
- Publication number
- CN210590425U CN210590425U CN201920961879.4U CN201920961879U CN210590425U CN 210590425 U CN210590425 U CN 210590425U CN 201920961879 U CN201920961879 U CN 201920961879U CN 210590425 U CN210590425 U CN 210590425U
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- CN
- China
- Prior art keywords
- injection molding
- sealing
- cavity
- pipe
- sealing block
- 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.)
- Expired - Fee Related
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 88
- 238000007789 sealing Methods 0.000 claims abstract description 86
- 239000000463 material Substances 0.000 claims abstract description 16
- 229920003023 plastic Polymers 0.000 claims abstract description 11
- 239000004033 plastic Substances 0.000 claims abstract description 11
- 230000008018 melting Effects 0.000 claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 238000004321 preservation Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000426 Microplastic Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a watchcase injection molding device, which comprises an injection molding pipe, wherein the outer side of the injection molding pipe is provided with a heat preservation case, a screw rod is arranged in an injection molding cavity of the injection molding pipe, the screw rod comprises a main shaft, and the outer side wall of the main shaft is fixed with a helical blade; a striker plate is arranged in the injection molding cavity, and an injection molding outlet is arranged on the striker plate; the injection molding cavity is divided into a sealing cavity and a hot melting cavity by the striker plate, the screw is positioned in the hot melting cavity, and a discharge hole is formed in the sealing cavity close to the striker plate; a sealing block is arranged in the sealing cavity in a sliding manner, and the side surface of the sealing block facing the material baffle is matched with the side surface of the material baffle facing the sealing block, so that the sealing block can be completely attached to the material baffle after being contacted with the material baffle; one side of the sealing block, which deviates from the material baffle plate, is provided with a sealing spring, one end of the sealing spring is propped against the sealing block, and the other end of the sealing spring is propped against the inner wall of the sealing cavity. The injection outlet is sealed by a sealing block and the sealing block is opened when the molten injection material is extruded by the screw; the sealed piece will mould plastics after the completion and export seals, cuts off the pipe of moulding plastics and external pipeline, the effectual backward flow of avoiding.
Description
Technical Field
The utility model relates to a clock and watch apparatus for producing especially relates to a watchcase device of moulding plastics.
Background
The injection molding machine is a device which injects plastic in a plasticized molten state into a closed mold cavity in a high-pressure and rapid mode by means of screw thrust, and obtains a product after cooling, solidification and shaping. The injection molding pipe of the existing injection device cannot be sealed in time after injection molding is finished, so that raw materials can possibly generate reverse flow; and the contact surface of the heating cylinder and the plastic particles in the screw transmission mode is small, so that a small amount of granular plastic is still mixed in the melted plastic particles, the quality of injection molding products is influenced, and the injection molding quality is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a watchcase injection molding device that effectively prevents against current, plastic granules melting is effectual is provided.
In order to solve the technical problem, the technical scheme of the utility model is that: a watchcase injection molding device comprises an injection molding pipe, wherein a heat preservation case is arranged on the outer side of the injection molding pipe, a screw is arranged in an injection molding cavity of the injection molding pipe, the screw comprises a main shaft, and a helical blade is fixed on the outer side wall of the main shaft; a material baffle plate is arranged in the injection molding cavity, and an injection molding outlet is formed in the material baffle plate; the injection molding cavity is divided into a sealing cavity and a hot melting cavity by the striker plate, the screw is positioned in the hot melting cavity, and a discharge hole is formed in the sealing cavity close to the striker plate; a sealing block is arranged in the sealing cavity in a sliding mode, and the side face, facing the striker plate, of the sealing block is matched with the side face, facing the sealing block, of the striker plate, so that the sealing block can be completely attached to the striker plate after being contacted with the striker plate; one side of the sealing block, which deviates from the striker plate, is provided with a sealing spring, one end of the sealing spring is propped against the sealing block, and the other end of the sealing spring is propped against the inner wall of the sealing cavity.
As a preferable technical scheme, the sealing device further comprises an adjusting device, the adjusting device comprises an adjusting plate positioned in the sealing cavity, and one end, far away from the sealing block, of the sealing spring is fixed on the adjusting plate; the pipe of moulding plastics closes on threaded connection has a plurality of adjusting bolt on the terminal surface of regulating plate, adjusting bolt stretches into sealed chamber supports the regulating plate deviates from on sealing spring's the side.
As a preferred technical scheme, a connecting pipe is arranged on the discharge hole, and the inner diameter of the connecting pipe is larger than the outer diameter of the discharge hole; the lower extreme of connecting pipe is equipped with the connecting portion that extends to its inboard, be equipped with the internal thread on the connecting portion.
Preferably, the helical blade includes at least a first blade portion and a second blade portion, and the first blade portion and the second blade portion are disposed at an interval; the injection molding pipe is provided with a plurality of stirring rods extending along the radial direction of the injection molding pipe, the stirring rods are arranged on the outer wall of the injection molding pipe in a sliding mode and are located between the first blade parts and the second blade parts; the injection molding device is characterized by further comprising a control device for adjusting the length of the stirring rod extending into the injection molding cavity.
As a preferable technical scheme, a plurality of outer pipes are fixed on the outer wall of the injection molding pipe, and the outer pipes are communicated with the injection molding cavity; the stirring rod is arranged in the outer pipe in a sliding mode.
As a preferable technical scheme, a plug body is fixed at one end of the stirring rod positioned in the outer tube, the control device comprises an air valve positioned at the outer end of the outer tube, and the air valve is connected with an air inlet and exhaust device.
As a preferred technical scheme, the injection molding machine further comprises an auxiliary shaft, wherein one end of the auxiliary shaft passes through the injection molding outlet and is connected with the main shaft; the other end of the auxiliary shaft is rotatably arranged on the outer wall of the injection molding pipe.
As a preferable technical scheme, a through hole for the auxiliary shaft to pass through is formed in the sealing block, and sliding sealing is formed between the through hole and the auxiliary shaft.
By adopting the technical scheme, the injection molding outlet of the injection molding pipe of the watchcase injection molding device is sealed by pushing the sealing block through the sealing spring, the sealing block is opened by extruding the molten injection molding material under the action of the screw rod, and after the injection molding is completed and the screw rod stops running, the sealing spring can push the sealing block again to seal the injection molding outlet, so that the injection molding pipe and the external pipeline are cut off, and backflow is effectively avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
As shown in figure 1, the watchcase injection molding device comprises an injection molding pipe 5, wherein a heat preservation shell 6 is arranged on the outer side of the injection molding pipe 5, and a heating module such as an electric heating wire is arranged in the heat preservation shell 6. The injection molding pipe 5 is characterized in that a screw is arranged in an injection molding cavity and comprises a main shaft 10, and helical blades are fixed on the outer side wall of the main shaft 10. The injection molding cavity is internally provided with a material baffle plate 17, and the material baffle plate 17 is provided with an injection molding outlet. The injection molding cavity is divided into a sealing cavity and a hot melting cavity by the striker plate 17, the screw is positioned in the hot melting cavity, and a discharge hole 14 is formed in the sealing cavity close to the striker plate 17; the sealing cavity is internally provided with a sealing block 4 in a sliding manner, the sealing block 4 faces the side face of the material baffle 17 and the material baffle 17 faces the side face of the sealing block 4, so that the sealing block 4 can be completely attached to the material baffle 17 after contacting. One side of the sealing block 4 departing from the striker plate 17 is provided with a sealing spring 3, one end of the sealing spring 3 is propped against the sealing block 4, and the other end of the sealing spring is propped against the inner wall of the sealing cavity. The injection molding outlet is sealed by pushing a sealing block 4 through a sealing spring 3, and the opening of the injection molding outlet is realized by pushing the pressure-melted injection molding material through a screw to push the sealing block away from a material baffle plate 17. After the completion of moulding plastics, when the screw rod stopped to operate, sealing spring 3 can promote sealed piece 4 once more and will mould plastics the export and seal, cuts off injection molding pipe 5 and external pipeline, the effectual backward flow of avoiding.
The device also comprises an adjusting device for adjusting the opening pressure of the sealing block 4, the adjusting device comprises an adjusting plate 2 positioned in the sealing cavity, and one end of the sealing spring 3, which is far away from the sealing block 4, is fixed on the adjusting plate 2; injection molding pipe 5 closes on threaded connection has a plurality of adjusting bolt 1 on the terminal surface of regulating plate 2, adjusting bolt 1 stretches into sealed chamber supports regulating plate 2 deviates from on sealing spring 3's the side. The length of the adjusting bolt 1 extending into the sealing cavity is controlled to control the compression amount of the sealing spring 3, so that the opening pressure of the sealing block 4 is adjusted, and the injection molding outlet can be sealed well.
A connecting pipe 16 is arranged on the discharge hole 14, and the inner diameter of the connecting pipe 16 is larger than the outer diameter of the discharge hole 14; the lower extreme of connecting pipe 16 is equipped with the connecting portion 15 that extends to its inboard, be equipped with the internal thread of connecting external pipeline on the connecting portion 15, make things convenient for external pipeline's change.
The helical blade at least comprises a first blade part 9 and a second blade part 13, and the first blade part 9 and the second blade part 13 are arranged at intervals; the injection molding pipe 5 is provided with a plurality of stirring rods 12 extending along the radial direction of the injection molding pipe, and 2-4 stirring rods 12 can be arranged in the same circumferential direction; the stirring rod 12 is slidably arranged on the outer wall of the injection molding pipe 5, and the stirring rod 12 is positioned between the first blade part 9 and the second blade part 13; the injection molding machine further comprises a control device for adjusting the length of the stirring rod 12 extending into the injection molding cavity. A plurality of outer pipes 7 are fixed on the outer wall of the injection molding pipe 5, and the outer pipes 7 are communicated with the injection molding cavity; the stirring rod 12 is slidably disposed within the outer tube 7. A plug body 11 is fixed at one end of the stirring rod 12, which is positioned in the outer tube 7, the control device comprises an air valve 8 positioned at the outer end of the outer tube 7, and the air valve 8 is connected with an air inlet and exhaust device. The outer side of the plug body 11 forms a control cavity, the stirring rod 12 is pushed out when gas is filled into the control cavity, the gas in the control cavity is pumped out, and the stirring rod 12 is retracted into the outer tube 7 under the action of negative pressure.
Wherein, helical blade can constitute and the equal interval setting between a plurality of blade portions by a plurality of independent blade portions, so can set up multiunit puddler 12 in interval department to realize better melting effect. When the main shaft 10 has a large span, in order to improve the stability of the main shaft 10, the main shaft further comprises an auxiliary shaft 18, and one end of the auxiliary shaft 18 passes through the injection outlet and is connected with the main shaft 10; the other end of the auxiliary shaft is rotatably arranged on the outer wall of the injection molding pipe 5. Specifically, a through hole for the auxiliary shaft 18 to pass through is formed in the sealing block 4, and a sealing ring is arranged between the through hole and the auxiliary shaft 18 to form sliding seal.
The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A watchcase injection molding device comprises an injection molding pipe, wherein a heat preservation case is arranged on the outer side of the injection molding pipe, a screw is arranged in an injection molding cavity of the injection molding pipe, the screw comprises a main shaft, and a helical blade is fixed on the outer side wall of the main shaft; the method is characterized in that: a material baffle plate is arranged in the injection molding cavity, and an injection molding outlet is formed in the material baffle plate; the injection molding cavity is divided into a sealing cavity and a hot melting cavity by the striker plate, the screw is positioned in the hot melting cavity, and a discharge hole is formed in the sealing cavity close to the striker plate; a sealing block is arranged in the sealing cavity in a sliding mode, and the side face, facing the striker plate, of the sealing block is matched with the side face, facing the sealing block, of the striker plate, so that the sealing block can be completely attached to the striker plate after being contacted with the striker plate; one side of the sealing block, which deviates from the striker plate, is provided with a sealing spring, one end of the sealing spring is propped against the sealing block, and the other end of the sealing spring is propped against the inner wall of the sealing cavity.
2. A case injection molding apparatus according to claim 1, wherein: the adjusting device comprises an adjusting plate positioned in the sealing cavity, and one end, far away from the sealing block, of the sealing spring is fixed on the adjusting plate; the pipe of moulding plastics closes on threaded connection has a plurality of adjusting bolt on the terminal surface of regulating plate, adjusting bolt stretches into sealed chamber supports the regulating plate deviates from on sealing spring's the side.
3. A case injection molding apparatus according to claim 1, wherein: the discharge port is provided with a connecting pipe, and the inner diameter of the connecting pipe is larger than the outer diameter of the discharge port; the lower extreme of connecting pipe is equipped with the connecting portion that extends to its inboard, be equipped with the internal thread on the connecting portion.
4. A case injection molding apparatus according to any one of claims 1 to 3, wherein: the helical blade at least comprises a first blade part and a second blade part, and the first blade part and the second blade part are arranged at intervals; the injection molding pipe is provided with a plurality of stirring rods extending along the radial direction of the injection molding pipe, the stirring rods are arranged on the outer wall of the injection molding pipe in a sliding mode and are located between the first blade parts and the second blade parts; the injection molding device is characterized by further comprising a control device for adjusting the length of the stirring rod extending into the injection molding cavity.
5. A case injection molding apparatus according to claim 4, wherein: a plurality of outer pipes are fixed on the outer wall of the injection molding pipe and communicated with the injection molding cavity; the stirring rod is arranged in the outer pipe in a sliding mode.
6. A case injection molding apparatus according to claim 5, wherein: the stirring rod is located one end in the outer tube is fixed with the cock body, controlling means is including being located the pneumatic valve of outer tube outer end, the pneumatic valve is connected with into exhaust apparatus.
7. A case injection molding apparatus according to claim 1, wherein: the injection molding machine also comprises an auxiliary shaft, wherein one end of the auxiliary shaft passes through the injection molding outlet and is connected with the main shaft; the other end of the auxiliary shaft is rotatably arranged on the outer wall of the injection molding pipe.
8. A case injection molding apparatus according to claim 7, wherein: the sealing block is provided with a through hole for the auxiliary shaft to pass through, and sliding sealing is formed between the through hole and the auxiliary shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920961879.4U CN210590425U (en) | 2019-06-25 | 2019-06-25 | Watchcase injection molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920961879.4U CN210590425U (en) | 2019-06-25 | 2019-06-25 | Watchcase injection molding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210590425U true CN210590425U (en) | 2020-05-22 |
Family
ID=70717342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920961879.4U Expired - Fee Related CN210590425U (en) | 2019-06-25 | 2019-06-25 | Watchcase injection molding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210590425U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223697A (en) * | 2020-09-19 | 2021-01-15 | 上海莎安精密注塑有限公司 | Injection molding machine |
| CN114572573A (en) * | 2022-05-09 | 2022-06-03 | 常州市恒邦新材料股份有限公司 | Industrial preservative sealing storage device with feeding and pushing functions |
| CN117532833A (en) * | 2023-09-26 | 2024-02-09 | 江苏浩淼兴阳新材料有限公司 | Injection molding raw material mixing device |
-
2019
- 2019-06-25 CN CN201920961879.4U patent/CN210590425U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223697A (en) * | 2020-09-19 | 2021-01-15 | 上海莎安精密注塑有限公司 | Injection molding machine |
| CN114572573A (en) * | 2022-05-09 | 2022-06-03 | 常州市恒邦新材料股份有限公司 | Industrial preservative sealing storage device with feeding and pushing functions |
| CN117532833A (en) * | 2023-09-26 | 2024-02-09 | 江苏浩淼兴阳新材料有限公司 | Injection molding raw material mixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |