CN219705985U - Screw structure for injection molding machine - Google Patents
Screw structure for injection molding machine Download PDFInfo
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- CN219705985U CN219705985U CN202320756857.0U CN202320756857U CN219705985U CN 219705985 U CN219705985 U CN 219705985U CN 202320756857 U CN202320756857 U CN 202320756857U CN 219705985 U CN219705985 U CN 219705985U
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- injection
- screw
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- pole
- thread
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 37
- 238000002347 injection Methods 0.000 claims abstract description 67
- 239000007924 injection Substances 0.000 claims abstract description 67
- 238000002844 melting Methods 0.000 claims abstract description 31
- 230000008018 melting Effects 0.000 claims abstract description 31
- 238000009434 installation Methods 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 229920003023 plastic Polymers 0.000 abstract description 40
- 239000004033 plastic Substances 0.000 abstract description 40
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 229920000426 Microplastic Polymers 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 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
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of injection molding machines and discloses a screw structure for an injection molding machine, which comprises a screw body, wherein the screw body comprises a mounting rod, a melting rod and an injection rod, the mounting rod and the injection rod are respectively connected with two ends of the melting rod, a first push thread is arranged on the outer side of the melting rod, a second push thread is arranged on the outer side of the injection rod, an injection tip is connected to the end part of the injection rod, and an anti-corrosion layer is arranged on the outer side of the screw body; install the screw rod body through the installation pole, plastics are in melting pole stage heating, the first push screw thread of encryption makes plastics pass through melting pole stage time increase, make plastics more thoroughly melt, the screw rod body rotates and makes first push screw thread push away molten plastics to the injection pole stage, injection pole and second push screw thread cooperation are used, make more molten plastics pour into the mould through the injection tip into, the anticorrosive coating increases the hardness and the corrosion resistance of screw rod body, thereby improve the result of use of screw rod, solve the not good problem of current screw rod result of use as far as possible.
Description
Technical Field
The utility model relates to the technical field of injection molding machines, in particular to a screw structure for an injection molding machine.
Background
Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment for making thermoplastic or thermosetting plastics into plastic products of various shapes by using plastic molding dies, and can be divided into vertical, horizontal and all-electric type, the injection molding machines can heat plastics, apply high pressure to molten plastics to make them jet out to fill a die cavity, and the high-efficiency injection molding machines are generally composed of an injection system, a die clamping system, a hydraulic transmission system, an electric control system, a lubrication system heating and cooling system, a safety monitoring system and the like.
The injection system comprises an injection table and a screw rod in the injection table, wherein the screw rod of the injection machine is an important part of the injection machine and is mainly used for conveying, compacting, melting, stirring and pressing plastics, plastic particles are put into the injection table and heated to be molten at high temperature, the molten plastics are filled in a thread groove of the screw rod, the molten plastics are injected into a die by the rotating screw rod, all the steps are completed by rotating the screw rod in a charging barrel, friction and mutual movement are generated between the plastics on the inner wall of the barrel, the bottom surface of the thread groove of the screw rod, the screw edge pushing surface and the plastics when the screw rod rotates, the forward pushing of the plastics is the result of the combination of the movements, and heat generated by friction is also absorbed to improve the temperature of the plastics and melt the plastics.
At present, the existing screw is generally provided with straight rods with the same thread spacing and depth, but with the rotation of the screw, the residence time of plastic in a heating area is shorter, the plastic is ensured to be completely melted by lengthening the heating area, and excessive molten plastic is extruded into a die by pushing the screw forwards through a pressure maintaining structure, so that the use effect is poor; therefore, the existing requirements are not met, and a screw structure for an injection molding machine is provided.
Disclosure of Invention
The utility model provides a screw rod structure for an injection molding machine, which has the beneficial effects that the problems that the existing screw rod in the background technology is generally provided with straight rods with the same thread spacing and depth, the residence time of plastic in a heating area is shorter along with the rotation of the screw rod, the plastic is ensured to be completely melted by lengthening the heating area, and excessive molten plastic is extruded into a die by pushing the screw rod forwards through a pressure maintaining structure, so that the using effect is poor are solved.
The utility model provides the following technical scheme: the utility model provides a screw rod structure for injection molding machine, includes the screw rod body, the screw rod body includes installation pole, melting pole and presses the shooting pole, the installation pole with press the shooting pole respectively with the both ends of melting pole are connected, the melting pole outside is provided with first propelling movement screw thread, it is provided with the second propelling movement screw thread to press the shooting pole outside, adjacent first propelling movement screw thread interval is less than adjacent second propelling movement screw thread interval, press the shooting pole end portion to be connected with and press the shooting tip, the screw rod body outside is provided with the anticorrosive coating.
As an alternative scheme of the screw structure for the injection molding machine, the utility model comprises the following steps: the installation screw thread is arranged on the outer side of the installation rod, and the installation screw thread is arranged at one end close to the melting rod.
As an alternative scheme of the screw structure for the injection molding machine, the utility model comprises the following steps: the installation rod end is connected with the sleeve pipe, the sleeve pipe sets up in keeping away from the one end of melting rod, the sleeve pipe lateral part is provided with logical groove, the quantity of logical groove sets up to a plurality of.
As an alternative scheme of the screw structure for the injection molding machine, the utility model comprises the following steps: the diameter of the melting rod is smaller than that of the injection rod.
As an alternative scheme of the screw structure for the injection molding machine, the utility model comprises the following steps: the width of the first pushing thread is smaller than that of the second pushing thread.
As an alternative scheme of the screw structure for the injection molding machine, the utility model comprises the following steps: the outer surfaces of the first pushing thread and the second pushing thread are both positioned on the same annular surface.
As an alternative scheme of the screw structure for the injection molding machine, the utility model comprises the following steps: the outside of the injection rod is connected with a lantern ring, the side part of the lantern ring is provided with injection holes, and the number of the injection holes is a plurality of.
As an alternative scheme of the screw structure for the injection molding machine, the utility model comprises the following steps: the injection tip is arranged in a cone shape, guide grooves are arranged on the outer side of the injection tip, the number of the guide grooves is the same as that of the injection holes, and the guide grooves correspond to the injection holes one by one.
The utility model has the following beneficial effects:
1. this screw structure for injection molding machine, through the setting of installation pole, be convenient for install the screw rod body and use on the injection molding machine, plastic granules advances into the incident bench, heat in the stage of melting the pole, through setting up first propelling movement screw thread encryption, make plastic granules pass through the time growth in melting the pole stage, thereby make plastic granules by more thorough melting for liquid, along with the rotation of screw rod body, make first propelling movement screw thread push the molten plastics to the injection pole stage, through the cooperation use of injection pole and second propelling movement screw thread, reduce the volume between the second propelling movement screw thread, make more molten plastics inject into the mould through the injection tip, reach the effect of pressurize to a certain extent, simultaneously through the setting of anticorrosive coating, increase the hardness and the corrosion resistance on screw rod body surface, thereby improve the result of use of injection molding machine screw, the screw rod that solves as far as possible, it is the straight-bar that screw pitch and degree are the same generally to set up, simple structure function is single, make the result of use not good.
2. This screw structure for injection molding machine, the molten plastic of injection pole lateral part flows into the guiding gutter on the injection point through the pressure perforation, through the setting of guiding gutter, carries out the drainage to the molten plastic for the molten plastic is convenient for be injected into in the mould through the injection point, thereby further improves the effect of injection.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
FIG. 2 is a schematic cross-sectional view of the present utility model.
Fig. 3 is a schematic view of a partial perspective structure of the present utility model.
Fig. 4 is an enlarged schematic view of the structure of the present utility model at a.
In the figure: 100. a screw body; 110. a mounting rod; 111. installing a thread; 112. a sleeve; 113. a through groove; 120. a melting rod; 130. a shot rod; 140. a first push thread; 150. a second push thread; 160. injecting a pointed head; 161. a collar; 162. perforating; 163. a diversion trench; 170. and an anti-corrosion layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
This embodiment is intended to facilitate solving the problem that the existing screw is generally configured as a straight rod with the same thread pitch and depth, but with the rotation of the screw, the residence time of the plastic in the heating zone is shorter, the plastic is completely melted by lengthening the heating zone, and the screw needs to be pushed forward by a pressure maintaining structure to enable the excessive melted plastic to be extruded into a mold, so that the use effect is poor.
The installation pole 110 outside is provided with the installation screw thread 111, and the installation screw thread 111 sets up the one end that is close to melting pole 120, and installation pole 110 end connection has sleeve pipe 112, and sleeve pipe 112 sets up the one end that is kept away from melting pole 120, and sleeve pipe 112 lateral part is provided with logical groove 113, and the quantity of logical groove 113 sets up to two, and two logical groove 113 symmetry set up the lateral part at sleeve pipe 112, is convenient for install the device on the injection molding machine through installation screw thread 111 and sleeve pipe 112.
The outside of melting rod 120 is provided with first push screw thread 140, the outside of injection rod 130 is provided with second push screw thread 150, the diameter of melting rod 120 is less than the diameter of injection rod 130, the interval of adjacent first push screw thread 140 is less than the interval of adjacent second push screw thread 150, and the width of first push screw thread 140 is less than the width of second push screw thread 150, the surface of first push screw thread 140 and second push screw thread 150 all is on same torus, make the degree of depth of first push screw thread 140 be greater than the degree of depth of second push screw thread 150, thereby make the volume of last screw thread groove of injection rod 130 be less than the volume of last screw thread groove of melting rod 120, injection rod 130 end connection has injection tip 160, the screw body 100 outside is provided with anticorrosive coating 170.
In this embodiment: through setting up of installation pole 110, be convenient for install screw rod body 100 and use on the injection molding machine, the plastic pellet advances into the entry table, heat in the stage of melting pole 120, through setting up first push screw thread 140 encryption, make the time growth of plastic pellet through the stage of melting pole 120, thereby make the plastic pellet by more thorough melting into liquid, along with the rotation of screw rod body 100, make first push screw thread 140 push the plastics of melting to the injection pole 130 stage, through the cooperation use of injection pole 130 and second push screw thread 150, reduce the volume between the second push screw thread 150, make more molten plastics inject into in the mould through injection sharp point 160, the effect of pressurize is reached to a certain extent, simultaneously through the setting of anticorrosive coating 170, increase the hardness and the corrosion resistance of screw rod body 100 surface, thereby improve the result of use of injection molding machine screw rod, the screw rod that solves current screw rod is usually set up to screw pitch and degree of depth homoenergetic as far as possible, but along with the rotation of screw rod, the time that plastics is shorter at the stay, guarantee plastics and melt the heating zone is complete through the cooperation use of injection molding of injection pole 130, and need push the structure with the plastics of the unnecessary extrusion effect of the mould of the advance of plastics of advance heat zone messenger's mould that the structure is not good.
Example 2
The present embodiment is intended to further facilitate solving the problem that the injection effect is easily affected by the injection tip 160 being inconvenient for injecting molten plastic into the mold, and is an improvement made on the basis of embodiment 1, specifically, referring to fig. 1, 2 and 3, the outside of the injection rod 130 is connected with a collar 161, the side of the collar 161 is provided with injection holes 162, the number of the injection holes 162 is four, the four compression holes 162 are annularly and uniformly arranged on the side of the collar 161, the injection tip 160 is tapered, the outside of the injection tip 160 is provided with guide grooves 163, the number of the guide grooves 163 is the same as the number of the injection holes 162, and the guide grooves 163 and the injection holes 162 are also four, and are respectively close to the injection holes 162 in one-to-one correspondence.
In this embodiment: molten plastic on the side of the injection rod 130 flows into the diversion trench 163 on the injection tip 160 through the injection hole 162, and is diverted through the diversion trench 163, so that the molten plastic is conveniently injected into the mold through the injection tip 160, and the injection effect is further improved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (8)
1. Screw structure for injection molding machine, including screw rod body (100), its characterized in that: the screw rod body (100) is including installation pole (110), melting pole (120) and injection pole (130), installation pole (110) with injection pole (130) respectively with the both ends of melting pole (120) are connected, melting pole (120) outside is provided with first push screw thread (140), injection pole (130) outside is provided with second push screw thread (150), adjacent first push screw thread (140) interval is less than adjacent second push screw thread (150) interval, injection pole (130) end connection has injection tip (160), screw rod body (100) outside is provided with anticorrosive coating (170).
2. The screw structure for an injection molding machine according to claim 1, wherein: the outside of the mounting rod (110) is provided with a mounting thread (111), and the mounting thread (111) is arranged at one end close to the melting rod (120).
3. The screw structure for an injection molding machine according to claim 1, wherein: the installation pole (110) end connection has sleeve pipe (112), sleeve pipe (112) set up in keeping away from the one end of melting pole (120), sleeve pipe (112) lateral part is provided with logical groove (113), the quantity of logical groove (113) sets up to a plurality of.
4. The screw structure for an injection molding machine according to claim 1, wherein: the diameter of the melting rod (120) is smaller than the diameter of the injection rod (130).
5. The screw structure for an injection molding machine according to claim 1, wherein: the first push thread (140) has a width that is less than a width of the second push thread (150).
6. The screw structure for an injection molding machine according to claim 1, wherein: the outer surfaces of the first pushing thread (140) and the second pushing thread (150) are both on the same annular surface.
7. The screw structure for an injection molding machine according to claim 1, wherein: the outside of the injection rod (130) is connected with a sleeve ring (161), the side part of the sleeve ring (161) is provided with injection holes (162), and the number of the injection holes (162) is a plurality of.
8. The screw structure for an injection molding machine according to claim 7, wherein: the injection tip (160) is arranged in a cone shape, guide grooves (163) are formed in the outer side of the injection tip (160), the number of the guide grooves (163) is the same as that of the injection holes (162), and the guide grooves (163) are in one-to-one correspondence with the injection holes (162).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320756857.0U CN219705985U (en) | 2023-04-07 | 2023-04-07 | Screw structure for injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320756857.0U CN219705985U (en) | 2023-04-07 | 2023-04-07 | Screw structure for injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219705985U true CN219705985U (en) | 2023-09-19 |
Family
ID=87982827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320756857.0U Active CN219705985U (en) | 2023-04-07 | 2023-04-07 | Screw structure for injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219705985U (en) |
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2023
- 2023-04-07 CN CN202320756857.0U patent/CN219705985U/en active Active
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