CN220314075U - Injection molding screw - Google Patents
Injection molding screw Download PDFInfo
- Publication number
- CN220314075U CN220314075U CN202320521306.6U CN202320521306U CN220314075U CN 220314075 U CN220314075 U CN 220314075U CN 202320521306 U CN202320521306 U CN 202320521306U CN 220314075 U CN220314075 U CN 220314075U
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- CN
- China
- Prior art keywords
- driving rod
- screw
- plate
- block
- drill bit
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 17
- 238000000465 moulding Methods 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses an injection molding screw rod, which comprises a driving rod and a thread plate sleeved on the driving rod, wherein the front end of the driving rod is provided with a drill bit, the rear end of the driving rod is connected with a connecting module, the connecting module is connected with a pressed connecting rod, the drill bit and the connecting module axially clamp the thread plate, the driving rod is provided with a thread groove, and the thread plate is matched into the thread groove in a rotating mode. The worker rotates the screw plate reversely, and the screw plate is separated from the driving rod in a rotating and retreating manner. And a new threaded plate of a worker is arranged on the driving rod in a forward rotation mode, the threaded plate is matched with a threaded groove on the driving rod, and the threaded plate is clamped by the drill bit and the engagement module. Thus, the circumferential movement freedom of the threaded plate is limited by the threaded groove, the axial movement freedom of the threaded plate is limited by the drill bit and the connection module, the threaded plate is stably connected to the driving rod, and the circumferential displacement of the threaded plate relative to the driving rod is effectively avoided.
Description
Technical Field
The utility model relates to an injection molding machine, in particular to an injection molding screw.
Background
The injection molding screw comprises a driving rod and a thread plate arranged on the driving rod. When the screw rod is in operation, the injection screw rod can be continuously operated in a high-temperature environment, and the screw rod is bent by a process after the temperature of the material is increased, so that the screw plate is easy to damage and bend, and even the screw plate is broken. Screw thread board and actuating lever integrated into one piece on the screw rod of moulding plastics now need whole part to change when the screw thread board damages, extravagant material.
For solving above-mentioned technical problem, the patent document of the bulletin number CN 217968237U of authorizing discloses an injection molding machine screw rod of moulding plastics, including the actuating lever, the outside of actuating lever is provided with the screw plate, the one end of actuating lever is provided with the joint piece, the one end of actuating lever is provided with a plurality of connecting blocks, the through-hole has all been seted up on the connecting block, a plurality of spacing grooves have all been seted up to the one end of joint piece, the one end embedding spacing inslot and the gomphosis of joint piece of connecting block, and a plurality of recesses have been seted up to the outside annular of joint piece, the draw-in groove has all been seted up to the inside of recess, all be provided with the bolt in the recess, the one end of bolt passes in the screw hole embedding through-hole, the one end and the joint piece outward appearance of bolt flush. This patent makes the improvement to the structure of moulding plastics screw rod, changes joint piece, actuating lever and screw thread board into split type, and is fixed with screw thread board clamp during the installation, and convenient change avoids the material extravagant when screw thread board damages.
When the threaded plate needs to be replaced or maintained, the connecting block is separated from the connecting block, the connecting block is separated from the driving rod, the threaded plate can be taken down, the maintained or replaced threaded plate is sleeved on the outer side of the driving rod, then the connecting block on the driving rod is embedded into the connecting block, connection between the driving rod and the connecting block is achieved, and the threaded plate on the driving rod is clamped and fixed through the drill bit at the front end of the driving rod and the connecting block at the rear end of the driving rod. Thus, the screw plate is fixed, and the following technical problems exist: the drill bit and the engagement block axially clamp the screw plate and do not limit the circumferential movement of the screw plate. When the injection molding screw works, the driving rod and the threaded plate are easy to rotate relatively, namely, the threaded plate slides on the driving rod, and therefore, the function of conveying materials by the threaded plate is affected.
Disclosure of Invention
The technical problems solved by the utility model are as follows: how to realize the stable connection of the driving rod and the thread plate, and avoid the circumferential displacement of the thread plate relative to the driving rod.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a screw rod of moulding plastics, includes that actuating lever and cover establish the screw thread board on the actuating lever, the front end of actuating lever is equipped with the drill bit, and the rear end of actuating lever is connected with the linking module, links up the module and is connected with the pressurized connecting rod, drill bit and linking module axial clamp the screw thread board, offer the screw thread groove on the actuating lever, the screw thread board cooperates into with rotatory mode the screw thread groove.
When the screw plate is replaced, the connection module is detached from the rear end of the driving rod, a worker reversely rotates the screw plate, the screw plate is separated from the driving rod in a rotary retreating mode, and the connection module is detached from the driving rod. The worker installs the thread board that has been repaired, or new thread board on the actuating lever with the mode of forward rotation, and the thread board cooperates with the screw groove on the actuating lever, and the front end of thread board offsets with the drill bit. And then, the worker installs the connection module at the rear end of the driving rod, and the connection module is propped against the rear end of the threaded plate. Thus, the circumferential movement freedom of the threaded plate is limited by the threaded groove, the axial movement freedom of the threaded plate is limited by the drill bit and the connection module, the threaded plate is stably connected to the driving rod, and the circumferential displacement of the threaded plate relative to the driving rod is effectively avoided.
The connecting module comprises a front connecting block and a rear connecting block, the front connecting block is connected to the rear end face of the driving rod through a plurality of first bolts, the rear connecting block is connected to the rear end face of the front connecting block through a plurality of second bolts, and the pressed connecting rod is arranged on the rear connecting block. The first bolt is axially connected with the front connecting block and the driving rod, so that the front connecting block axially displaces towards the driving rod, and the front connecting block and the drill bit can axially clamp the threaded plate.
As an improvement, the front end face of the front connecting block is provided with a groove, and the inner diameter of the groove is equal to the outer diameter of the driving rod. The rear end of the driving rod is matched into the groove of the front connecting block, and then the first bolt is used for fastening the connection between the front connecting block and the driving rod again, so that the stable connection between the driving rod and the front connecting block is realized.
As an improvement, an elastic cushion block is matched in the groove, and two sides of the elastic cushion block are respectively propped against the bottom surface of the groove and the rear end surface of the driving rod. When the first bolt is used for fastening the connection between the front connecting block and the driving rod, the elastic cushion block is extruded, the axial displacement between the front connecting block and the driving rod is provided with a certain amplitude by the elastic cushion block, the amplitude can enable the front connecting block to be abutted against the rear end face of the threaded plate, and noise generated by the relative movement of the threaded plate and the driving rod when the injection molding screw works can be avoided.
A plurality of first threaded holes are formed in the rear end face of the driving rod, a plurality of corresponding first connecting holes are formed in the front connecting block, the first connecting holes are counter bores, and the bolt heads of first bolts matched in the first threaded holes and the first connecting holes are hidden in the counter bores. The bolt head of the first bolt is hidden in the counter bore and does not prevent the front end face of the rear connecting block from being attached to the rear end face of the front connecting block and the front connecting block from being fixedly connected with each other.
The front connecting block is provided with a plurality of second threaded holes, the rear connecting block is provided with a plurality of corresponding second connecting holes, and second bolts are matched in the second threaded holes and the second connecting holes to realize the fixed connection of the rear connecting block and the front connecting block.
The drill bit is provided with a plurality of material grooves which are uniformly distributed along the circumference of the drill bit.
Drawings
The utility model is further described with reference to the accompanying drawings:
FIG. 1 is a schematic view of an injection screw;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a schematic view of an injection screw at another view angle;
fig. 4 is an exploded view of fig. 3.
The symbols in the drawings illustrate:
10. a driving rod; 11. a thread groove; 12. a first threaded hole;
20. a thread plate;
30. a drill bit; 31. a trough;
40. a linking module; 41. a front joint block; 410. a groove; 411. a first connection hole; 412. a second threaded hole; 42. a rear joint block; 421. a second connection hole; 43. a first bolt; 44. a second bolt;
50. the connecting rod is connected under pressure.
Detailed Description
Referring to fig. 1, 2 and 4, an injection molding screw comprises a driving rod 10 and a threaded plate 20 sleeved on the driving rod, wherein a drill bit 30 is arranged at the front end of the driving rod, a connecting module 40 is connected at the rear end of the driving rod, a pressed connecting rod 50 is connected to the connecting module, the drill bit and the connecting module axially clamp the threaded plate, a threaded groove 11 is formed in the driving rod, and the threaded plate is matched with the threaded groove in a rotating mode.
When the screw plate 20 is replaced, the engagement module 40 is removed from the rear end of the driving rod 10, the worker reversely rotates the screw plate 20, and the screw plate is separated from the driving rod 10 in a rotary retreating manner and is removed from the driving rod. The worker mounts the trimmed screw plate, or the new screw plate 20, on the driving rod 10 in a forward rotation manner, the screw plate 20 is engaged with the screw groove 11 on the driving rod 10, and the front end of the screw plate 20 is abutted against the drill bit 30. Thereafter, the worker installs the engagement module 40 at the rear end of the driving rod 10, and the engagement module 40 abuts against the rear end of the screw plate 20. In this way, the freedom of the circumferential movement of the screw plate 20 is limited by the screw groove 11, the freedom of the axial movement of the screw plate is limited by the drill bit 30 and the engagement module 40, and the screw plate 20 is stably connected to the driving rod 10, so that the circumferential displacement of the screw plate 20 relative to the driving rod 10 is effectively avoided.
The engagement module 40 includes a front engagement block 41 connected to the rear end face of the drive rod 10 by a plurality of first bolts 43 and a rear engagement block 42 connected to the rear end face of the front engagement block by a plurality of second bolts 44, and a pressure-receiving engagement rod 50 provided on the rear engagement block. The first bolt 43 axially connects the front engagement block 41 and the driving rod 10, so that the front engagement block 41 is axially displaced toward the driving rod 10, and the front engagement block 41 and the drill bit 30 can axially clamp the thread plate 20.
The front end surface of the front engagement block 41 is provided with a groove 410 having an inner diameter equal to the outer diameter of the driving rod 10. The rear end of the driving rod 10 is fitted into the groove 410 of the front adapter block, and then the first bolt 43 re-fastens the connection of the front adapter block 41 to the driving rod 10, thus achieving stable connection of the driving rod 10 to the front adapter block 41.
An elastic cushion block is matched in the groove 410, and two sides of the elastic cushion block are respectively propped against the bottom surface of the groove and the rear end surface of the driving rod 10. When the first bolt 43 fastens the connection between the front engagement block 41 and the driving rod 10, the elastic pad is pressed, the elastic pad makes the axial displacement between the front engagement block 41 and the driving rod 10 have a certain amplitude, the amplitude can make the front engagement block 41 abut against the rear end surface of the screw plate 20, and the noise generated by the relative movement of the screw plate 20 and the driving rod 10 when the injection molding screw works can be avoided.
The rear end face of the driving rod 10 is provided with a plurality of first threaded holes 12, the front connecting block 41 is provided with a plurality of corresponding first connecting holes 411, the first connecting holes are counter bores, and the bolt heads of first bolts 43 matched in the first threaded holes and the first connecting holes are hidden in the counter bores. In this way, the front end face of the rear engagement block 42 is not prevented from being engaged with the rear end face of the front engagement block 41, and the fixed connection of the two is not prevented.
The front connecting block 41 is provided with a plurality of second threaded holes 412, the rear connecting block 42 is provided with a plurality of corresponding second connecting holes 421, and the second bolts 44 are matched in the second threaded holes and the second connecting holes, so that the rear connecting block 42 and the front connecting block 41 are fixedly connected.
The drill bit 30 is provided with a plurality of trough 31 which are uniformly distributed along the circumference of the drill bit 30.
The foregoing is merely illustrative of the preferred embodiments of the present utility model, and modifications in detail will readily occur to those skilled in the art based on the teachings herein without departing from the spirit and scope of the utility model.
Claims (7)
1. The utility model provides a screw rod of moulding plastics, includes actuating lever (10) and cover establish screw thread board (20) on the actuating lever, and the front end of actuating lever is equipped with drill bit (30), and the rear end of actuating lever is connected with links up module (40), links up the module and is connected with pressurized joining pole (50), drill bit and links up the module axial clamp screw thread board, its characterized in that: the drive rod is provided with a thread groove (11) into which the thread plate is fitted in a rotating manner.
2. An injection molding screw as claimed in claim 1, wherein: the engagement module (40) comprises a front engagement block (41) and a rear engagement block (42), the front engagement block is connected to the rear end face of the driving rod (10) through a plurality of first bolts (43), the rear engagement block is connected to the rear end face of the front engagement block through a plurality of second bolts (44), and the compression engagement rod (50) is arranged on the rear engagement block.
3. An injection molding screw as claimed in claim 2, wherein: the front end surface of the front connecting block (41) is provided with a groove (410), and the inner diameter of the groove is equal to the outer diameter of the driving rod (10).
4. An injection molding screw as claimed in claim 3, wherein: elastic cushion blocks are matched in the grooves (410), and two sides of each elastic cushion block are respectively propped against the bottom surfaces of the grooves and the rear end surfaces of the driving rods (10).
5. An injection molding screw as claimed in claim 2, wherein: a plurality of first threaded holes (12) are formed in the rear end face of the driving rod (10), a plurality of corresponding first connecting holes (411) are formed in the front connecting block (41), the first connecting holes are counter bores, and bolt heads of first bolts (43) matched in the first threaded holes and the first connecting holes are hidden in the counter bores.
6. An injection molding screw as claimed in claim 5, wherein: a plurality of second threaded holes (412) are formed in the front connecting block (41), a plurality of corresponding second connecting holes (421) are formed in the rear connecting block (42), and second bolts (44) are matched in the second threaded holes and the second connecting holes.
7. An injection molding screw as claimed in claim 5, wherein: the drill bit (30) is provided with a plurality of trough (31), and the trough is uniformly distributed along the circumference of the drill bit (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320521306.6U CN220314075U (en) | 2023-03-17 | 2023-03-17 | Injection molding screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320521306.6U CN220314075U (en) | 2023-03-17 | 2023-03-17 | Injection molding screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220314075U true CN220314075U (en) | 2024-01-09 |
Family
ID=89424282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320521306.6U Active CN220314075U (en) | 2023-03-17 | 2023-03-17 | Injection molding screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220314075U (en) |
-
2023
- 2023-03-17 CN CN202320521306.6U patent/CN220314075U/en active Active
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| GR01 | Patent grant |