CN220146579U - Sprue cutting device of injection molding machine - Google Patents
Sprue cutting device of injection molding machine Download PDFInfo
- Publication number
- CN220146579U CN220146579U CN202321596217.4U CN202321596217U CN220146579U CN 220146579 U CN220146579 U CN 220146579U CN 202321596217 U CN202321596217 U CN 202321596217U CN 220146579 U CN220146579 U CN 220146579U
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- Prior art keywords
- saw blade
- driving
- injection molding
- molding machine
- cutting device
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 24
- 229920003023 plastic Polymers 0.000 description 26
- 239000004033 plastic Substances 0.000 description 26
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of injection molding machines, in particular to a sprue cutting device of an injection molding machine, which comprises a frame body, a saw blade and a driving structure for driving the saw blade to saw off a sprue, wherein the saw blade is arranged on the frame body; the driving structure comprises a first driving device for driving the saw blade to transversely reciprocate and a second driving device for driving the saw blade to longitudinally reciprocate, and the first driving device and the second driving device are arranged on the frame body; the first drive comprises a crank, a slide block, a slide groove and a first motor, wherein the slide block is in sliding connection with the slide groove, the crank is used for driving the slide block to slide in a reciprocating manner, and the saw blade is arranged on the slide block.
Description
Technical Field
The utility model relates to the technical field of injection molding machines, in particular to a sprue cutting device of an injection molding machine.
Background
In the production of products by injection molding, a plastic in a molten state is generally injected into a mold through a gate, and then cooled to obtain a molded product. However, after the product cools, there is a plastic residue on the gate, and when separating the mold from the cooled product, it is necessary to remove the plastic on the gate and then separate the mold from the product, which may otherwise interfere with the process of separating the mold from the product.
At present, when plastics on a pouring gate are removed, a pouring gate cutting device is generally used, the common pouring gate cutting device comprises a frame body, a positioning component and a cutting knife component are arranged on the frame body, the positioning component is provided with a first limiting surface for limiting the pouring gate cutting position of an air deflector, and the cutting knife component is provided with a second limiting surface; when the cutting knife assembly moves towards the air deflector assembly, the second limiting surface moves along the extending direction of the first limiting surface and is matched with the first limiting surface to form a scissor-shaped structure so as to cut the pouring gate.
The cutting device is single in structure and low in working efficiency, manual auxiliary operation is needed, labor intensity of workers is increased, and when the pouring gate is cut off, the injection molding product needs to be fixed, so that the product is prevented from being deviated.
Disclosure of Invention
In order to facilitate cutting of plastic on a gate, the utility model provides a gate cutting device of an injection molding machine.
The utility model provides a pouring gate cutting device of an injection molding machine, which adopts the following technical scheme:
the gate cutting device of the injection molding machine comprises a frame body, a saw blade and a driving structure for driving the saw blade to saw off a gate, wherein the saw blade is arranged on the frame body; the driving structure comprises a first driving device for driving the saw blade to transversely reciprocate and a second driving device for driving the saw blade to longitudinally reciprocate, and the first driving device and the second driving device are arranged on the frame body; the first drive comprises a crank, a sliding block, a sliding groove and a first motor for driving the crank to reciprocate, the sliding block is connected in the sliding groove in a sliding mode, the crank is used for driving the sliding block to reciprocate, and the saw blade is arranged on the sliding block.
Through adopting above-mentioned technical scheme, when cutting the runner, start first motor, first motor rotates and drives the crank and do transverse reciprocating motion to drive saw bit reciprocating motion, simultaneously, second drive structure drive saw bit longitudinal reciprocating motion, thereby cut the runner level and smooth. Compared with the cutting device in the prior art, the utility model does not need manual assistance, and is convenient for cutting off injection molding residues of the pouring gate; adopt crank drive, connection structure is simple, also is convenient for maintain and change if damage appears.
Optionally, the second drive includes lead screw, screw nut and is used for driving the pivoted second motor of lead screw, the lead screw rotate connect in on the support body the screw nut threaded connection in on the lead screw, first drive set up in on the screw nut.
Through adopting above-mentioned technical scheme, when driving saw bit longitudinal movement, start the second motor, second motor drive lead screw rotates, and the lead screw rotates and drives lead screw nut along lead screw length direction slip to drive first drive and remove along longitudinal direction, make the saw bit longitudinal movement when horizontal reciprocating motion, be convenient for cut off remaining plastics on the runner.
Optionally, a connecting plate is fixedly connected to the screw nut, and the first drive is arranged on the connecting plate.
By adopting the technical scheme, because the first drive includes crank, slider, spout and first motor, lead screw nut is usually less in practice, sets up each part of connecting plate convenient to install the first drive.
Optionally, the frame body includes supporting leg and operation board, the through-hole has been seted up on the operation board.
Through adopting above-mentioned technical scheme, in the injection molding process, the runner overflows the condition of plastics inequality, if the runner overflows the condition that the plastics is more appears, the plastics that overflows on the runner probably withstands the operation panel to make the saw bit unable contact runner cut off the plastics that overflows, consequently set up the through-hole, if the plastics that the runner department overflowed is more, the plastics can pass the through-hole, thereby makes the saw bit can contact the runner, and the saw bit of being convenient for cuts off the plastics that overflows on with the runner.
Optionally, the support leg is configured as a cylinder.
Through adopting above-mentioned technical scheme, when cutting off the plastics on the runner, start the cylinder earlier, the expansion end of cylinder outwards stretches out, drives the operation panel and rises, places the plastic product of shaping below the support body, then makes the expansion end of cylinder move down, and the operation panel descends, and the plastics of runner department is located the through-hole, then starts the plastics that drive structure drive saw bit overflowed with runner department and cuts off.
Optionally, the saw blade has a saw blade with a saw blade bevel edge, and the lower end of the saw blade is close to the gate of the die.
Through adopting above-mentioned technical scheme, set up the saw bit into the sword form of slope, when the plastics that overflow of cutting runner department, the one side of the low side of saw bit contacts the runner, and the saw bit of being convenient for directly cuts off the plastics that overflowed from the runner department, reduces remaining possibility.
Optionally, a connection structure for connecting the saw blade is arranged between the saw blade and the sliding block.
By adopting the technical scheme, the saw blade can be passivated or broken after being used for a period of time, so that the saw blade is connected to the sliding block by the connecting structure, and the saw blade is convenient to overhaul and replace.
Optionally, the connection structure includes connecting screw, the installation groove of installation saw bit has been seted up to the side that the slider is close to the runner, connecting screw passes saw bit threaded connection is on the slider.
Through adopting above-mentioned technical scheme, if the saw bit damages or passivates, when changing the saw bit, rotatory connecting screw takes off connecting screw, can take out the saw bit from the mounting groove, installs new saw bit in the mounting groove again, the screw can be screwed on again.
In summary, the utility model has the following beneficial technical effects:
1. according to the utility model, through the arrangement of the saw blade and the driving structure, no manual assistance is needed, the injection molding residue of the pouring gate is conveniently cut off, the structure is simple, and the maintenance and the replacement are convenient if the pouring gate is damaged;
2. according to the utility model, through the arrangement of the through holes, if more plastic overflows from the gate, the plastic can pass through the through holes, so that the saw blade can contact the gate, and the saw blade is convenient to cut off the plastic overflowed from the gate.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a driving structure according to an embodiment of the present utility model;
fig. 3 is an enlarged schematic view of the portion a in fig. 2.
Reference numerals illustrate:
1. a frame body; 2. support legs; 3. an operation panel; 4. a saw blade; 5. a first drive; 6. a crank; 7. a slide block; 8. a chute; 9. a first motor; 10. a rocker; 11. a connecting rod; 12. a second drive; 13. a screw rod; 14. a screw nut; 15. a connecting block; 16. a groove; 17. a connecting plate; 18. a mounting groove; 19. a connecting screw; 20. and a through hole.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-3.
The embodiment of the utility model discloses a sprue cutting device of an injection molding machine, referring to fig. 1, the sprue cutting device comprises a frame body 1, a saw blade 4 and a driving structure for driving the saw blade 4 to saw off a sprue, wherein the frame body 1 comprises support legs 2 and an operation plate 3, through holes 20 are formed in the operation plate 3, the support legs 2 are arranged as cylinders, in the embodiment of the utility model, the number of the support legs 2 is four, and the four support legs 2 are arranged at four corners of the operation plate 3.
Referring to fig. 2 and 3, the driving structure includes a first driving part 5 for driving the saw blade 4 to reciprocate laterally and a second driving part 12 for driving the saw blade 4 to move longitudinally, the first driving part 5 and the second driving part 12 being provided on the frame 1; the second drive 12 comprises a screw rod 13, a screw rod nut 14 and a second motor for driving the screw rod 13 to rotate, a connecting block 15 is fixedly connected to the frame body 1, a groove 16 is formed in the connecting block 15, the screw rod 13 is rotationally connected to the groove 16, the screw rod nut 14 is in threaded connection with the screw rod 13, and the first drive 5 is arranged on the screw rod nut 14. The screw nut 14 is fixedly connected with a connecting plate 17, and the first drive 5 is arranged on the connecting plate 17.
Referring to fig. 3, the first driving unit 5 includes a crank 6, a slider 7, a chute 8, and a first motor 9, the crank 6 is used for driving the slider 7 to reciprocate, the crank 6 includes a rocker 10 and a link 11, one end of the rocker 10 is rotatably connected to the link 17, the other end of the rocker 10 is rotatably connected to one end of the link 11, and the slider 7 is rotatably connected to the other end of the link 11; the first motor 9 is fixedly connected to the connecting plate 17 and is used for driving the rocker 10 to rotate. The chute 8 is fixedly connected to the connecting plate 17, the sliding block 7 is slidably connected to the chute 8, one end of the saw blade 4 is connected to the sliding block 7 through a connecting structure, the connecting structure comprises a connecting screw 19, a mounting groove 18 for mounting the saw blade 4 is formed in one side surface of the sliding block 7, which is close to the pouring gate, and the connecting screw 19 penetrates through the saw blade 4 to be connected to the sliding block 7 in a threaded manner.
Referring to fig. 2, a saw blade 4 is disposed on a frame 1, a saw blade 4 is disposed with a saw blade in a bevel shape, and a lower end of the saw blade 4 is close to a mold gate. In the embodiment of the present utility model, in order to facilitate the lower end of the saw blade 4 to contact the gate, when the connecting screw 19 fixes the saw blade 4 to the slider 7, the end surface of the connecting screw 19 is flush with the end surface of the slider 7.
The implementation principle of the pouring gate cutting device of the injection molding machine provided by the embodiment of the utility model is as follows: when the plastic on the pouring gate is cut off, the air cylinder is started first, the movable end of the air cylinder extends outwards to drive the operation plate 3 to ascend, the formed plastic product is placed below the frame body 1, then the movable end of the air cylinder moves downwards, the operation plate 3 descends, and the plastic at the pouring gate is located in the through hole 20. Then the first motor 9 is started, the first motor 9 rotates to drive the rocker 10 to rotate, and the connecting rod 11 moves along with the rocker to drive the sliding block 7 to slide in the sliding groove 8 in a reciprocating manner, so that the saw blade 4 is driven to do reciprocating motion; at the same time, the second motor drives the screw rod 13 to rotate, and drives the screw rod nut 14 to slide along the length direction of the screw rod 13, so that the saw blade 4 is driven to longitudinally move to cut off the plastic overflowing from the gate.
If the saw blade 4 is damaged or passivated, when the saw blade 4 is replaced, the connecting screw 19 is rotated, the connecting screw 19 is removed, the saw blade 4 can be taken out of the mounting groove 18, a new saw blade 4 is mounted in the mounting groove 18, and the screw is screwed again.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. The utility model provides an injection molding machine runner cutting device which characterized in that: the device comprises a frame body (1), a saw blade (4) and a driving structure for driving the saw blade (4) to saw off a sprue, wherein the saw blade (4) is arranged on the frame body (1); the driving structure comprises a first driving device (5) for driving the saw blade (4) to transversely reciprocate and a second driving device (12) for driving the saw blade (4) to longitudinally reciprocate, and the first driving device (5) and the second driving device (12) are arranged on the frame body (1); the first driving device comprises a crank (6), a sliding block (7), a sliding groove (8) and a first motor (9) for driving the crank (6) to reciprocate, wherein the sliding block (7) is slidably connected in the sliding groove (8), the crank (6) is used for driving the sliding block (7) to reciprocate, and the saw blade (4) is arranged on the sliding block (7).
2. The injection molding machine gate cutting device according to claim 1, wherein: the second drive (12) comprises a screw rod (13), a screw rod (13) nut and a second motor for driving the screw rod (13) to rotate, the screw rod (13) is rotationally connected to the frame body (1), the screw rod (13) nut is in threaded connection with the screw rod (13), and the first drive (5) is arranged on the screw rod (13) nut.
3. The injection molding machine gate cutting device according to claim 2, wherein: the screw rod (13) is fixedly connected with a connecting plate (17) on the nut, and the first drive (5) is arranged on the connecting plate (17).
4. The injection molding machine gate cutting device according to claim 1, wherein: the frame body (1) comprises supporting legs (2) and an operation plate (3), and a through hole (20) is formed in the operation plate (3).
5. The injection molding machine gate cutting device according to claim 4, wherein: the supporting legs (2) are arranged as cylinders.
6. The injection molding machine gate cutting device according to claim 1, wherein: saw kerfs of the saw blade (4) are arranged in an inclined blade shape, and the lower ends of the saw blade (4) are close to a mold gate.
7. The injection molding machine gate cutting device according to claim 1, wherein: a connecting structure for connecting the saw blade (4) is arranged between the saw blade (4) and the sliding block (7).
8. The injection molding machine gate cutting device of claim 7, wherein: the connecting structure comprises a connecting screw (19), a mounting groove (18) for mounting the saw blade (4) is formed in one side face, close to the pouring gate, of the sliding block (7), and the connecting screw (19) penetrates through the saw blade (4) to be connected to the sliding block (7) in a threaded mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321596217.4U CN220146579U (en) | 2023-06-21 | 2023-06-21 | Sprue cutting device of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321596217.4U CN220146579U (en) | 2023-06-21 | 2023-06-21 | Sprue cutting device of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220146579U true CN220146579U (en) | 2023-12-08 |
Family
ID=89016146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321596217.4U Active CN220146579U (en) | 2023-06-21 | 2023-06-21 | Sprue cutting device of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220146579U (en) |
-
2023
- 2023-06-21 CN CN202321596217.4U patent/CN220146579U/en active Active
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