CN211074511U - A mould for processing gear for printer - Google Patents
A mould for processing gear for printer Download PDFInfo
- Publication number
- CN211074511U CN211074511U CN201922046420.4U CN201922046420U CN211074511U CN 211074511 U CN211074511 U CN 211074511U CN 201922046420 U CN201922046420 U CN 201922046420U CN 211074511 U CN211074511 U CN 211074511U
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- CN
- China
- Prior art keywords
- mould
- die
- die carrier
- gear
- frame
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- 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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- 238000001816 cooling Methods 0.000 claims description 13
- 238000003754 machining Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000004033 plastic Substances 0.000 abstract description 23
- 229920003023 plastic Polymers 0.000 abstract description 23
- 238000001746 injection moulding Methods 0.000 abstract description 14
- 239000012943 hotmelt Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000002347 injection Methods 0.000 abstract description 8
- 239000007924 injection Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 244000309464 bull Species 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 238000009757 thermoplastic moulding Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a mould for processing gear for printer belongs to the injection mold field, aim at providing the higher mould of production efficiency, its technical scheme main points are including back mould base, be equipped with the fixed plate on the back mould base in proper order, back die carrier, preceding die carrier and front mould base, be equipped with two front mould benevolence in the front mould carrier, be equipped with two back mould benevolence in the back die carrier, the sprue has been seted up on the front mould base, mould benevolence and back mould benevolence before the sprue passes through the pipe intercommunication, plastics under the hot melt state are followed the sprue and are poured into between front mould benevolence and the back mould benevolence, it is the shape of required gear to mould plastics, the injection molding of two gears is once accomplished to this kind of mould, have.
Description
Technical Field
The utility model relates to an injection mold field, in particular to a mould for processing gear for printer.
Background
The injection mold is the most commonly used molding mold in the production of thermoplastic plastic products, a movable mold and a fixed mold are closed to form a pouring system and a cavity during injection molding, and the movable mold and the fixed mold are separated during mold opening so as to take out plastic products. Injection molding is an important method of thermoplastic molding. It can be used to form plastics with complex shapes, precise sizes and metallic or non-metallic inserts. The injection mold has short processing and forming period, high production efficiency and easy automation.
As shown in fig. 1, a gear for a printer includes a pinion gear 19 and a bull gear 18, the pinion gear 19 and the bull gear 20 being integrated and the pinion gear 19 being coaxial with the bull gear 18.
The existing injection mold can produce the gear for the printer, hot-melt plastic is injected into a cavity through a main runner, cooling and molding are carried out in the cavity, a front mold frame rises, and a molded shell is ejected out of a rear mold core through an ejector pin, but the injection mold can only produce one gear by one-time injection molding, so the production efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a mould for processing gear for printer has the higher advantage of production efficiency.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a mould for processing gear for printer, includes back die carrier, and back die carrier has the thimble, is equipped with preceding die carrier on the back die carrier, be equipped with two back mould benevolence in the back die carrier, be equipped with the front mould benevolence just to back mould benevolence in the back mould benevolence, has seted up the die cavity between front mould benevolence and the back mould benevolence, and in front mould frame was arranged in to front mould benevolence, be equipped with the front mould base on the preceding die carrier, be equipped with the sprue on the front mould base, the sprue communicates two front mould.
By adopting the technical scheme, plastic in a hot melting state is injected into the guide pipe through the main runner and then flows into the cavity through the guide pipe, the shape of the cavity corresponds to that of the gear for the printer, after the plastic is cooled, the front die frame rises to drive the front die core to be away from the rear die core, so that the cavity is opened, the ejector pin jacks up to eject the gear, the injection molding of the gear is completed, and two cavities are arranged in the mold, so that two gears can be simultaneously produced by one-time injection molding, and the injection molding device has the advantage of higher production efficiency.
Furthermore, a guide shaft perpendicular to the rear mold frame is fixedly arranged on the rear mold frame, and the guide shaft is arranged in the front mold frame and is in sliding connection with the front mold frame.
By adopting the technical scheme, the guide shaft is arranged in the front die frame to slide in the ascending and descending processes of the front die frame, and has the function of guiding the moving direction of the front die frame, so that the front die frame is prevented from deviating relative to the rear die frame, and the matching accuracy between the front die frame and the rear die frame is improved.
Furthermore, one side bolted connection of preceding die carrier has the limiting plate, and the one end that the front die carrier was kept away from to the limiting plate is arranged in one side of back die carrier, and the limiting plate passes through bolted connection in one side of back die carrier, limiting plate and back die carrier sliding connection.
Through adopting above-mentioned technical scheme, limiting plate connection is in one side of preceding die carrier and back die carrier, preceding die carrier and limiting plate fixed connection, back die carrier and limiting plate sliding connection, and the limiting plate plays the effect of position between spacing preceding die carrier and the back die carrier, ensures that the mould is at the in-process interconnect of transportation, hoist and mount, prevents preceding die carrier and back die carrier separation.
Furthermore, a fixing plate is arranged below the rear die frame, the ejector pin is connected with the fixing plate in a sliding mode, a guide rod is arranged below the fixing plate, and the top of the guide rod is fixedly connected with the bottom of the ejector pin.
Through adopting above-mentioned technical scheme, guide arm and thimble are cylindricly, and the diameter of guide arm is greater than the diameter of thimble, and the guide arm moves up, drives the thimble and shifts up, and the guide arm plays the effect of transmission power, and the fixed plate plays spacing thimble direction of motion and guide arm movement distance's effect.
Furthermore, a rear mold base is arranged below the fixing plate.
Through adopting above-mentioned technical scheme, back mould base is "L" font, and the back mould base is arranged in under the fixed plate, and the back mould base plays the effect of supporting and fixed plate, ensures that the guide arm reciprocates smoothly between back mould base and fixed plate.
Furthermore, cooling pipes are respectively arranged in the front die frame and the rear die frame in a penetrating mode.
Through adopting above-mentioned technical scheme, the plastics of hot melt pour into the die cavity into, and the cooling tube has the effect of absorbed heat, accelerates the cooling of plastics, reduces injection moulding's time, has the effect that improves production efficiency.
Furthermore, a funnel is arranged on the main flow channel.
Through adopting above-mentioned technical scheme, the funnel has the advantage that the hot melt plastics of being convenient for pass through pipe injection die cavity, and hot melt plastics are the fluid form, prevent that hot melt plastics from overflowing the sprue at the in-process of moulding plastics.
Furthermore, a mould hanging hole is formed in the front mould base.
Through adopting above-mentioned technical scheme, hang the nib and be the screw hole, need hoisting equipment to hoist the mould during the frame mould, hang the nib and have the effect of being convenient for hoist the mould.
To sum up, the utility model discloses following beneficial effect has:
1. through the arrangement of the two front mold cores and the two rear mold cores, two cavities are formed in the mold, two gears can be produced simultaneously through one-time injection molding, and the gear injection molding machine has the advantage of higher production efficiency;
2. through the setting of guiding axle, the guiding axle slides in arranging in preceding die carrier, and the guiding axle has the effect of the die carrier moving direction before the direction of direction, prevents that preceding die carrier from taking place the skew relatively back die carrier, and then improves the complex accuracy between preceding die carrier and the back die carrier.
Drawings
FIG. 1 is a schematic view of a gear for a printer;
FIG. 2 is a schematic structural view of the embodiment;
FIG. 3 is a sectional view in the embodiment;
FIG. 4 is a schematic diagram of the front and rear mold cores in the embodiment;
FIG. 5 is a schematic structural view of a guide shaft in the embodiment.
In the figure, 1, a rear mold frame; 2. a front mold frame; 3. a front mold core; 4. a rear mold core; 5. a conduit; 6. a funnel; 7. a limiting plate; 8. hanging a mould hole; 9. a main flow channel; 10. a front mold base; 11. a fixing plate; 12. a thimble; 13. a rear mold base; 14. a guide shaft; 15. a cavity; 16. a cooling tube; 17. a guide bar; 18. a bull gear; 19. a pinion gear.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
a mold for machining a gear for a printer is shown in figures 2 and 3 and comprises a rear mold frame 1 and a front mold frame 2, wherein the front mold frame 2 is arranged right above the rear mold frame 1, two front mold cores 3 are fixedly connected in the front mold frame 2, two rear mold cores 4 are fixedly connected in the rear mold frame 1, and the two front mold cores 3 are respectively opposite to the two rear mold cores 4. Two cavities 15 are formed among the front die frame 2, the rear die frame 1, the two front die cores 3 and the two rear die cores 4, and the cavities 15 correspond to the shape of the gear for the printer. Two cavities 15 are arranged in the die, two gears can be produced simultaneously by one-time injection molding, and the die has the advantage of higher production efficiency.
As shown in fig. 3, a front mold base 10 is bolted to the front mold frame 2, a main runner 9 penetrates through the front mold base 10, the main runner 9 is communicated with the cavity 15, and hot-melt plastic is injected into the cavity 15 through the main runner 9.
As shown in fig. 3 and 4, the funnel 6 is bolted to the main flow channel 9. Funnel 6 has the advantage that the plastics of being convenient for the hot melt pass through pipe 5 and pour into in the die cavity 15, and the plastics of hot melt are the fluid form, prevent that the plastics of hot melt from overflowing sprue 9 at the in-process of moulding plastics.
As shown in fig. 2, a mold hanging hole 8 is formed in the front mold base 10, the mold hanging hole 8 is a threaded hole, a lifting device is needed to lift the mold during mold erecting, and the mold hanging hole 8 has an effect of facilitating mold lifting.
As shown in fig. 2, a limiting plate 7 is bolted to one side of the front mold frame 2, one end of the limiting plate 7, which is far away from the front mold frame 2, is arranged on one side of the rear mold frame 1, the limiting plate 7 is connected to one side of the rear mold frame 1 through a bolt, and the limiting plate 7 is slidably connected with the rear mold frame 1. The limiting plate 7 is connected to one side of the front die carrier 2 and the rear die carrier 1, the front die carrier 2 is fixedly connected with the limiting plate 7, and the rear die carrier 1 is connected with the limiting plate 7 in a sliding mode. The limiting plate 7 has the effect of ensuring the mutual connection of the molds in the processes of transportation and hoisting, and prevents the separation of the front mold frame 2 and the rear mold frame 1.
As shown in fig. 3 and 4, a fixing plate 11 is bolted to the lower part of the rear mold frame 1, an ejector pin 12 is slidably connected to the fixing plate 11, a guide rod 17 is arranged below the fixing plate 11, and the top of the guide rod 17 is fixedly connected to the bottom of the ejector pin 12. The guide rod 17 and the thimble 12 are cylindrical, the top of the thimble 12 is arranged in the cavity 15, the diameter of the guide rod 17 is larger than that of the thimble 12, the guide rod 17 moves upwards to drive the thimble 12 to move upwards, the guide rod 17 plays a role in transmitting power, and the fixing plate 11 plays a role in limiting the movement direction of the thimble 12 and the movement distance of the guide rod 17. The plastic in a hot melting state is injected into the guide pipe 5 through the main runner 9 and then flows into the cavity 15 through the guide pipe 5, after the plastic is cooled, the front die frame 2 rises to drive the front die core 3 to be away from the rear die core 4, so that the cavity 15 is opened, the guide rod 17 jacks upwards to drive the thimble 12 to eject the molded gear, and the injection molding of the gear is completed.
As shown in fig. 2, a rear mold base 13 is bolted to a position just below the fixed plate 11, the rear mold base 13 is shaped like "L", and the rear mold base 13 plays a role in supporting and fixing the fixed plate 11.
As shown in fig. 3 and 5, two guide shafts 14 perpendicular to the rear mold frame 1 are fixedly arranged on the rear mold frame 1, the guide shafts 14 are cylindrical, and the guide shafts 14 are arranged in the front mold frame 2 and are slidably connected with the front mold frame 2. In the process that the front die carrier 2 ascends and moves downwards, the guide shaft 14 is arranged in the front die carrier 2 to slide, and the guide shaft 14 has the function of guiding the moving direction of the front die carrier 2, so that the front die carrier 2 is prevented from deviating relative to the rear die carrier 1, and the matching accuracy between the front die carrier 2 and the rear die carrier 1 is improved.
As shown in fig. 3 and 4, cooling pipes 16 are inserted into the rear mold frame 1 and the front mold frame 2, and the cooling pipes 16 are uniformly distributed around the cavity 15. The hot-melt plastic is injected into the cavity 15, the cooling liquid flows in the cooling pipe 16, and the cooling pipe 16 has the function of absorbing heat, so that the cooling of the plastic is accelerated, the injection molding time is shortened, and the production efficiency is improved.
The specific implementation process comprises the following steps: hot-melt plastic injection funnel 6 is injected into cavity 15 through guide pipe 5, after cooling and forming through cooling pipe 16, front mold base 10 and front mold base 2 move upwards, guide rod 17 moves upwards to drive ejector pin 12 to move upwards to eject the shell, after an operator takes out a formed gear, front mold base 2 and front mold base 10 descend until front mold core 3 is attached to rear mold core 4, and guide rod 17 moves downwards to drive ejector pin 12 to move downwards, so that the injection molding process of the shell is completed.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a mould for processing gear for printer, includes back die carrier (1), back die carrier (1) has thimble (12), is equipped with preceding die carrier (2), its characterized in that on back die carrier (1): be equipped with two back mould benevolence (4) in back die carrier (1), be equipped with front mould benevolence (3) just to back mould benevolence (4) on back mould benevolence (4), seted up die cavity (15) between front mould benevolence (3) and back mould benevolence (4), in front die carrier (2) was arranged in front mould benevolence (3), be equipped with front mould base (10) on front mould base (2), be equipped with sprue (9) on front mould base (10), sprue (9) communicate two front mould benevolence (3) respectively through pipe (5).
2. The die for machining a gear for a printer according to claim 1, wherein: and a guide shaft (14) which is vertical to the rear mould frame (1) is fixedly arranged on the rear mould frame (1), and the guide shaft (14) is arranged in the front mould frame (2) and is in sliding connection with the front mould frame (2).
3. The die for machining a gear for a printer according to claim 1, wherein: one side bolted connection of preceding die carrier (2) has limiting plate (7), and one side of back die carrier (1) is arranged in to the one end that preceding die carrier (2) were kept away from in limiting plate (7), and limiting plate (7) pass through bolted connection in one side of back die carrier (1), limiting plate (7) and back die carrier (1) sliding connection.
4. The die for machining a gear for a printer according to claim 1, wherein: a fixing plate (11) is arranged below the rear die carrier (1), the ejector pin (12) is in sliding connection with the fixing plate (11), a guide rod (17) is arranged below the fixing plate (11), and the top of the guide rod (17) is fixedly connected with the bottom of the ejector pin (12).
5. The die for machining a gear for a printer according to claim 4, wherein: and a rear die base (13) is arranged below the fixed plate (11).
6. The die for machining a gear for a printer according to claim 1, wherein: and cooling pipes (16) are respectively arranged in the front die frame (2) and the rear die frame (1) in a penetrating way.
7. The die for machining a gear for a printer according to claim 1, wherein: and a funnel (6) is arranged on the main flow channel (9).
8. The die for machining a gear for a printer according to claim 1, wherein: and a mould hanging hole (8) is formed in the front mould base (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922046420.4U CN211074511U (en) | 2019-11-21 | 2019-11-21 | A mould for processing gear for printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922046420.4U CN211074511U (en) | 2019-11-21 | 2019-11-21 | A mould for processing gear for printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211074511U true CN211074511U (en) | 2020-07-24 |
Family
ID=71639940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922046420.4U Expired - Fee Related CN211074511U (en) | 2019-11-21 | 2019-11-21 | A mould for processing gear for printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211074511U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223659A (en) * | 2020-09-19 | 2021-01-15 | 上海莎安精密注塑有限公司 | Injection mold for gear piece convenient to die sinking |
| CN113954310A (en) * | 2021-10-18 | 2022-01-21 | 宁波拓普电器有限公司 | Injection mold |
-
2019
- 2019-11-21 CN CN201922046420.4U patent/CN211074511U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223659A (en) * | 2020-09-19 | 2021-01-15 | 上海莎安精密注塑有限公司 | Injection mold for gear piece convenient to die sinking |
| CN113954310A (en) * | 2021-10-18 | 2022-01-21 | 宁波拓普电器有限公司 | Injection mold |
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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: 20200724 |