CN113183419A - Injection molding mold for control panel of washing machine - Google Patents
Injection molding mold for control panel of washing machine Download PDFInfo
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- CN113183419A CN113183419A CN202110354948.7A CN202110354948A CN113183419A CN 113183419 A CN113183419 A CN 113183419A CN 202110354948 A CN202110354948 A CN 202110354948A CN 113183419 A CN113183419 A CN 113183419A
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- 238000005406 washing Methods 0.000 title claims abstract description 67
- 238000001746 injection moulding Methods 0.000 title claims abstract description 66
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 1
- 229920003023 plastic Polymers 0.000 abstract description 27
- 239000004033 plastic Substances 0.000 abstract description 27
- 238000000465 moulding Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000002347 injection Methods 0.000 description 19
- 239000007924 injection Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The application relates to an injection moulding mould of washing machine control panel relates to washing machine control panel's the production field of moulding plastics, includes: the device comprises a front die, a rear die and an inclined ejection mechanism arranged on the front die; an injection molding channel is formed on the front mold; the inclined ejection mechanism comprises an inclined ejector rod, an inclined ejection block, a pulling block, a hydraulic cylinder, a limiting block and an elastic piece, wherein the inclined ejector rod is connected to the front die in a sliding manner; the inclined ejector rod, the front mold and the rear mold form an injection molding cavity, the side face of the limiting block is abutted against the inclined ejector block, the upper end face of the limiting block is abutted against the pulling block, the two ends of the elastic part are abutted against the front mold and the limiting block respectively, and the pulling block can press the limiting block into the limiting groove. The application improves the stability of the inclined ejector rod in the injection molding process of the control panel of the washing machine.
Description
Technical Field
The application relates to the field of injection molding production of control panels of washing machines, in particular to an injection molding mold for the control panels of the washing machines.
Background
When the washing machine is used, a control panel is installed at the top end of the washing machine, the control panel of the washing machine is mainly formed by plastic injection molding when being manufactured, various operation buttons are installed on the control panel and connected, and then a user operates and controls the washing machine through the control panel.
Fig. 1 and 2 show a control panel of a washing machine, which is a curved plate, and in order to install an operation button on the control panel, an inclined hole 100 is formed on the control panel by injection molding, and then the operation button is installed in the inclined hole 100. Referring to fig. 3, when performing injection molding of the inclined hole 100, a core pulling of the front mold 11 needs to be performed on the front mold 11 of the mold, the most commonly used method at present is to slidably mount an inclined ejector rod 21 on the front mold 11, mount an inclined ejector block 22 capable of driving the inclined ejector rod 21 to reciprocate on the front mold 11, slidably connect the inclined ejector block 22 and the inclined ejector rod 21, finally mount a hydraulic cylinder 24 capable of driving the inclined ejector block 22 to reciprocate on the front mold 11, the inclined ejector rod 21 is perpendicular to the inclined hole 100, form an injection cavity between the inclined ejector rod 21 and the front mold 11 and the rear mold 12, form an injection channel 111 on the front mold 11, when performing injection molding of the control panel of the washing machine, perform injection molding of plastic into the injection cavity through the injection channel 111 on the front mold 11 by an injection molding machine, cool the control panel by a cooling pipe through the front mold 11 and the rear mold 12, and retract a piston rod of the hydraulic cylinder 24, the inclined ejection block 22 is pulled back, then the inclined ejection rod 21 moves along with the inclined ejection block 22, when the inclined ejection rod 21 moves out of the position of the inclined hole 100 on the control panel, the rear die 12 and the front die 11 are demolded, and then the ejection mechanism on the rear die 12 is used for ejecting the control panel on the rear die 12, so that the injection molding of the control panel of the complete washing machine is completed.
During the injection molding process of the control panel of the washing machine, the pressure in the injection molding cavity is high, at this time, a piston rod of the hydraulic cylinder 24 is required to tightly push the inclined ejector block 22, then the inclined ejector block 22 tightly pushes the inclined ejector rod 21, so that the phenomenon that molten plastic is sprayed out through a through hole at the position of the inclined ejector rod 21 during the injection molding process of the control panel of the washing machine is avoided, and the hydraulic cylinder 24 is required to continuously ensure the stability of the cylinder body and the pipeline of the control panel of the washing machine, but during the actual production process, the cylinder body and the hydraulic pipeline of the hydraulic cylinder 24 are easy to age along with the use of time, so that the risk that the molten plastic is sprayed out along the through hole at the position of the inclined ejector rod 21 exists during the injection molding process of the control panel of the washing machine.
Disclosure of Invention
In order to improve the stability of washing machine control panel oblique ejector pin among the process of moulding plastics, this application provides a washing machine control panel's injection moulding mould.
The application provides a washing machine control panel's injection moulding mould adopts following technical scheme:
an injection molding mold of a control panel of a washing machine, comprising: the device comprises a front die, a rear die and an inclined ejection mechanism arranged on the front die;
an injection molding channel is formed on the front mold;
the inclined ejection mechanism comprises an inclined ejector rod, an inclined ejection block, a pulling block, a hydraulic cylinder, a limiting block and an elastic piece, wherein the inclined ejector rod is connected to the front die in a sliding manner;
the injection molding device is characterized in that an injection molding cavity is formed among the inclined ejector rod, the front mold and the rear mold, a sliding groove is formed in the inclined ejector rod, a sliding rail is formed in the inclined ejector block, the outer side face of the sliding rail is attached to the inner side face of the sliding groove, a groove is formed in the pulling block, a protruding block is formed in the inclined ejector block and located in the groove, a limiting groove is formed in the front mold, the limiting block is located in the limiting groove, the side face of the limiting block abuts against the inclined ejector block, the upper end face of the limiting block abuts against the pulling block, two ends of the elastic piece abut against the front mold and the limiting block respectively, and the limiting block can be pressed into the limiting groove by the pulling block.
Through adopting above-mentioned technical scheme, when washing machine control panel moulds plastics, the piston rod of pneumatic cylinder inwards stretches out, it is ejecting with oblique kicking block through drawing the piece, oblique ejector pin slides on the slide rail on oblique kicking block, the slide rail restricts oblique ejector pin to withstand, then mould plastics to the cavity of moulding plastics through the passageway of moulding plastics, oblique kicking block is behind the stopper, the stopper pops out under the elastic force of elastic component, the stopper withstands oblique kicking block, and then play spacing effect to oblique kicking block, when moulding plastics to the cavity of moulding plastics, along with the increase of injection pressure, the stopper also can be to the fine tight effect of top that oblique kicking block played, the stability of oblique ejector pin when moulding plastics has been improved, the position department spun risk of solution from oblique ejector pin of moulding plastics has been reduced, make injection mold can be better carry out washing machine control panel's the moulding plastics.
Optionally, the slide rail is perpendicular to the axis of the lifter.
Through adopting above-mentioned technical scheme, the slide rail of being convenient for carries out the top tightly to the ejector pin to one side.
Optionally, the outer side surface of the inclined ejector rod is attached to the outer side surface of the inclined ejector block.
Through adopting above-mentioned technical scheme for the oblique ejector block is better to push up tightly to the oblique ejector pin.
Optionally, the limiting block is perpendicular to the inclined ejecting block and the pulling block.
Through adopting above-mentioned technical scheme, the stopper of being convenient for carries out spacing top tightly to oblique kicking block, has improved the stability of oblique ejector pin when washing machine control panel moulds plastics, has reduced the risk of melting plastics spun when moulding plastics.
Optionally, a force application inclined plane is formed on the pulling block, a stress inclined plane is formed on the limiting block, the force application inclined plane is attached to the stress inclined plane, and the pulling block presses the limiting block into the limiting groove through the force application inclined plane and the stress inclined plane.
Optionally, after the force-bearing inclined plane is separated from the force-applying inclined plane, the inner side surface of the groove is attached to the outer side surface of the projection.
By adopting the technical scheme, after the control panel of the washing machine is cooled, the piston rod of the hydraulic cylinder retracts and drives the pulling block to move outwards, an interaction force is generated on the force application inclined plane of the pulling block on the force application inclined plane, the action force has a component force towards the bottom of the limiting groove, so that the limiting block gradually retracts into the limiting groove, the pulling block continues to move, after the force application inclined plane is separated from the force application inclined plane, the inner side surface of the groove of the pulling block is attached to the lug, then the pulling block pulls out the inclined ejecting block, then the inclined ejecting rod slides on the inclined ejecting block, the inclined ejecting rod is separated from the inclined hole on the control surface of the washing machine, and then the back mold and the front mold are demolded.
Optionally, the number of the limiting grooves is two, and the two limiting grooves are symmetrically distributed on two sides of the pull block.
Optionally, the elastic member is a compression spring.
To sum up, the application comprises the following beneficial technical effects:
1. the elastic piece and the limiting block improve the stability of the inclined ejector block and the inclined ejector rod during injection molding, and the risk of molten plastic ejection is reduced.
2. The elastic part and the limiting block, the groove on the pulling block and the convex block on the inclined ejecting block are ingenious in structural design and simple in structure, the inclined ejecting block can be well ejected tightly and limited, the cost is low, the production and the processing are convenient, and the use is flexible.
Drawings
Fig. 1 is a product diagram of a control panel of a washing machine.
Fig. 2 is a cross-sectional view taken along the line a-a in fig. 1.
Fig. 3 is a schematic view of an injection mold of a control panel of a washing machine before modification in the present application.
Fig. 4 is a schematic view of an injection mold of a modified control panel of a washing machine in an embodiment of the present application.
Fig. 5 is a schematic view of a modified lifter mechanism of the present application.
FIG. 6 is a view showing the state of the lifter mechanism in the injection molding in the embodiment of the present application.
Fig. 7 is an exploded view of the mechanism of fig. 6 of the present application.
Description of reference numerals: 100. an inclined hole; 11. a front mold; 111. injection molding a channel; 112. a limiting groove; 113. a first through hole; 114. a second through hole; 12. a rear mold; 2. a pitched roof mechanism; 21. an oblique ejector rod; 211. a chute; 22. a slanted ejecting block; 221. a slide rail; 222. a bump; 223. a connecting portion; 23. pulling the block; 231. a groove; 232. a force application slope; 24. a hydraulic cylinder; 25. a limiting block; 251. a force-bearing inclined plane; 252. a limiting side surface; 26. an elastic member.
Detailed Description
The present application is described in further detail below with reference to the attached drawings. (Inward movement means movement from the outside of the mold to the inside of the mold, and outward means movement from the inside of the mold to the outside of the mold)
Referring to fig. 2, when the washing machine control panel is injection molded, since the washing machine control panel needs to be provided with the inclined hole 100 for installing the operation button, and the inclined hole 100 is arranged on the washing machine control panel in an inclined manner, the injection molding of the inclined hole 100 on the washing machine control panel needs to be considered in the manufacturing process of the injection mold of the washing machine control panel.
Fig. 3 is a currently-used injection mold including a front mold 11, a rear mold 12, and a lifter mechanism 2 mounted on the front mold 11. The injection mold further comprises a front mold bottom plate, a rear mold bottom plate, a front mold clamping plate and a rear mold clamping plate, wherein the front mold bottom plate and the rear mold bottom plate are distributed on two opposite sides of the front mold 11 and the rear mold 12. The front mold clamping plate is positioned between the front mold 11 and the front mold bottom plate, and two ends of the front mold clamping plate are respectively used for connecting the front mold 11 and the front mold clamping plate; the rear mold clamping plate is positioned between the rear mold 12 and the rear mold base plate, and two ends of the rear mold clamping plate are respectively used for connecting the rear mold 12 and the rear mold clamping plate.
An injection channel 111 is formed on the front die 11; the front mold 11 is formed with a first through hole 113 and a second through hole 114 which are distributed horizontally and obliquely, the first through hole 113 and the second through hole 114 are communicated and collectively referred to as a mounting hole, and the lifter mechanism 2 is mounted in the mounting hole. When the rear die 12 and the front die 11 are closed, an injection molding cavity is formed between the rear die 12 and the front die 11, and the mounting hole is communicated with the injection molding cavity.
Referring to fig. 3, the currently commonly used lifter mechanism 2 includes a lifter bar 21, a lifter block 22, and a hydraulic cylinder 24. The inclined ejector rod 21 is installed in the second through hole 114, the inclined ejector block 22 is installed in the first through hole 113, when the inclined ejector rod 21 completely extends into the injection molding position in the second through hole 114, the outer side surface of the inclined ejector rod 21 is attached to the inner wall of the second through hole 114, the outer side surface of the inclined ejector rod 21 and the inner side surface of the second through hole 114 form sealing, at the moment, a closed injection molding cavity is formed among the front mold 11, the rear mold 12 and the inclined ejector rod 21, and then injection molding is performed in the closed injection molding cavity through the injection molding cavity on the front mold 11.
With reference to fig. 7, two sliding grooves 211 are formed on the lifter rod 21, the two sliding grooves 211 are distributed on two opposite side surfaces of the lifter rod 21, two parallel sliding rails 221 are formed on the lifter block 22, an inclined slope is formed on the lifter block 22, the two sliding rails 221 are distributed on the inclined side surfaces of the lifter block 22, and the sliding grooves 211 of the lifter rod 21 penetrate through one side of the sliding rails 221. When the inclined ejector block 22 moves into the first through hole 113, the inclined ejector rod 21 slides on the slide rail 221, the inclined ejector rod 21 moves into the second through hole 114, and then the inclined ejector rod 21 is gradually abutted against the inner side surface of the second through hole 114. When the inclined ejector block 22 moves to the outside of the first through hole 113, the sliding rail 221 slides in the sliding groove 211, the sliding rail 221 drives the inclined ejector rod 21 to move outwards in the second through hole 114, and when the inclined ejector rod 21 moves out of the inclined hole 100, the rear mold 12 is demolded with the front mold 11.
The hydraulic cylinder 24 is installed on the side surface of the front mold 11, a piston rod of the hydraulic cylinder 24 extends into the first through hole 113, the piston rod of the hydraulic cylinder 24 is fixedly connected with the side end of the inclined ejecting block 22, the piston rod of the hydraulic cylinder 24 drives the inclined ejecting block 22 to reciprocate in the first through hole 113, and therefore the slide rail 221 on the inclined ejecting block 22 drives the inclined ejecting rod 21 to reciprocate in the second through hole 114.
In the process of injection molding of the control panel of the washing machine, the water cooling mechanisms on the front mold 11 and the rear mold 12 cool the front mold 11 and the rear mold 12, after the control panel of the washing machine is cooled and molded, the rear mold 12 is demolded on the front mold 11, then, in the process of demolding the rear mold 12 and the front mold 11, the ejection mechanism on the rear mold 12 extends out, the ejection mechanism ejects the control panel of the washing machine on the rear mold 12, the control panel of the washing machine drops off on the rear mold 12, so that the injection molding of the control panel of the finished washing machine is finished, then, the rear mold 12 is matched with the front mold 11, and the injection molding of the control panel of the next washing machine is started.
In the process of injection molding of the control panel of the washing machine, the pressure of molten plastic in an injection molding cavity is high, so that a piston rod of the hydraulic cylinder 24 is required to continuously push the inclined ejector block 22 tightly, then the inclined ejector block 22 continuously pushes the inclined ejector rod 21 tightly, and the situation that the molten plastic is sprayed out through a through hole in the position of the inclined ejector rod 21 in the process of injection molding of the control panel of the washing machine is avoided, so that the stability of a cylinder body and a pipeline of the washing machine is continuously guaranteed by the hydraulic cylinder 24, but in the process of actual production, the cylinder body and the hydraulic pipeline of the hydraulic cylinder 24 are easy to age along with the use of time, so that the risk that the molten plastic is sprayed out along the through hole in the position of the inclined ejector rod 21 exists in the process of injection molding of the control panel of the washing machine, and production accidents are easy to cause.
In order to solve the problems, if a servo oil cylinder is selected during the production and processing of the injection mold, the problems can be solved, but the production cost of the control panel of the washing machine is very high, and the control panel of the washing machine is not suitable for large-area popularization and production.
The embodiment of the application discloses washing machine control panel's injection moulding mould.
Referring to fig. 4 and 5, the improved injection mold for the control panel of the washing machine is improved, the improved injection mold for the control panel of the washing machine comprises a front mold 11, a rear mold 12 and an inclined ejection mechanism 2, the inclined ejection mechanism 2 comprises an inclined ejector rod 21, an inclined ejection block 22 and a hydraulic cylinder 24, the inclined ejection mechanism 2 further comprises a pull block 23, a limit block 25 and an elastic piece 26, the pull block 23, the limit block 25 and the elastic piece 26 play a role in pre-tightening the inclined ejection block 22, the stability of the inclined ejection block 22 is improved in the injection molding process of the control panel of the washing machine, the stability of the inclined ejector rod 21 is further improved by the inclined ejection block 22, and the injection molding quality of the control panel of the washing machine is integrally improved.
Referring to fig. 6 and 7, two grooves 231 are formed on the pull block 23, the two grooves 231 are located on two opposite side surfaces of the pull block 23, two connecting portions 223 are formed on the inclined top block 22, the connecting portions 223 are plate-shaped, the two connecting portions 223 are parallel to each other, the two connecting portions 223 are located on the side surfaces, far away from the slide rail 221, of the inclined top block 22, a protrusion 222 is formed on each connecting portion 223, the protrusion 222 is located on the opposite side surfaces of the two connecting portions 223, the width of each groove 231 is larger than that of the protrusion 222, when the device is installed, the protrusion 222 is located inside the groove 231, the side surfaces, far away from the connecting portions 223, of the protrusion 222 are attached to the bottom surface of the groove 231, during the movement of the pull block 23, the side surfaces of the groove 231 can only be attached to one side surface of the protrusion 222, when the other side surfaces of the groove 231 is attached to the side surfaces of the protrusion 222, a gap exists between the other side surfaces of the protrusion 222 and the groove 231, therefore, when the pulling block 23 moves in the opposite direction, a braking distance exists between the pulling block 23 and the inclined ejecting block 22, the pulling block 23 moves within the braking distance during the moving process, at this time, the side surface of the pulling block 23 is separated from the side surface of the groove 231, after the pulling block 23 passes through the braking distance, the other side surface of the pulling block 23 is attached to the other side surface of the groove 231 again, and then the pulling block 23 continues to drive the inclined ejecting block 22 to move.
Referring to fig. 5 and 7, a piston rod of the hydraulic cylinder 24 is fixedly connected with the pull block 23, the piston rod of the hydraulic cylinder 24 drives the pull block 23 to perform reciprocating motion, two limit grooves 112 are formed on the front mold 11, the two limit grooves 112 are symmetrically distributed on two sides of the pull block 23, the limit grooves 112 are perpendicular to the pull block 23, the limit blocks 25 and the elastic member 26 are installed in the limit grooves 112, the elastic member 26 is located between the limit blocks 25 and the bottoms of the limit grooves 112, the limit blocks 25 are in a cap shape, the elastic member 26 is a compression spring, the compression spring extends into the limit blocks 25, the bottoms of the elastic members 26 abut against the bottoms of the limit grooves 112, and the tops of the elastic members 26 abut against the inner bottom surfaces of the limit blocks 25.
Referring to fig. 5 and 7, the pull block 23 is provided with a force application inclined surface 232, the force application inclined surface 232 intersects with the moving direction of the pull block 23, the limit block 25 is provided with a force application inclined surface 251, the force application inclined surface 232 is parallel to the force application inclined surface 251, and under the action of the elastic force of the elastic member 26, the force application inclined surface 251 of the limit block 25 abuts against the force application inclined surface 232 of the pull block 23. When the pulling block 23 pushes the inclined ejecting block 22 tightly, the force application inclined plane 232 is positioned between the force application inclined plane 251 and the inclined ejecting block 22, the force application inclined plane 232 is attached to the force application inclined plane 251, and the side surface of the limiting block 25 is attached to the side surface of the inclined ejecting block 22; the limit block 25 limits the inclined top block 22, at the moment, the control panel of the washing machine performs injection molding, after the control panel of the washing machine is cooled, a piston rod of the hydraulic cylinder 24 retracts, the piston rod drives the pull block 23 to move outwards, the force application inclined plane 232 applies force to the force application inclined plane 251, the force can generate force towards the bottom of the limit groove 112 on the limit block 25, when the force overcomes the elastic force of the elastic piece 26, the elastic piece 26 is compressed, and the limit block 25 gradually retracts into the limit groove 112; the limiting block 25 is formed with a limiting side surface 252, the limiting side surface 252 is vertically arranged, when the force application inclined surface 232 is attached to the force application inclined surface 251, the limiting side surface 252 is attached to the side surface of the inclined ejecting block 22 far away from the slide rail 221, the piston rod continues to retract, the force application inclined surface 251 is gradually separated from the force application inclined surface 232, at this time, the limiting side surface 252 is separated from the side surface of the inclined ejecting block 22, the bottom surface of the pulling block 23 is abutted to the top of the limiting block 25, at this time, the inner side surface of the groove 231 on the pulling block 23 is attached to the outer side surface of the projection 222, the pulling block 23 drives the projection 222 to move outwards, then the whole inclined ejecting block 22 moves outwards, the inclined ejecting rod 21 slides on the slide rail 221 on the inclined ejecting block 22, therefore, the inclined ejecting rod 21 gradually moves outwards in the second through hole 114, the inclined ejecting rod 21 pulls out of the inclined hole 100 on the washing machine control panel, and then the front mold 11 and the rear mold 12 are demolded.
Referring to fig. 4 and 5, when the injection molding of the panel of the washing machine is performed again, the rear mold 12 and the front mold 11 are firstly closed, then the piston rod of the hydraulic cylinder 24 extends out, the piston rod pushes the pull block 23 inwards, the pull block 23 pushes the inclined push rod 21 to move inwards, the stress inclined plane 251 is gradually attached to the force application inclined plane 232 in the process that the pull block 23 moves inwards, then the limit block 25 gradually moves towards the pull block 23 from the limit groove 112, when the stress inclined plane 251 is attached to the force application inclined plane 232, the inclined push rod 21 is pushed into the injection position in the second through hole 114 by the inclined push block 22, at this time, the limit side surface 252 is attached to the side surface of the inclined push block 22 far away from the slide rail 221, meanwhile, the inclined push rod 21, the front mold 11 and the rear mold 12 form a closed injection molding cavity, then the injection molding is performed into the closed injection molding cavity through the injection molding channel 111, and the limit side surface 252 performs limit locking on the inclined push block 22, in the injection molding process, the inclined ejector block 22 is prevented from moving outwards under the pressure of molten plastic, the sealing effect in the closed injection molding cavity is improved, the injection molding pressure is increased, and the injection molding quality of the control panel of the washing machine is improved.
In-process of moulding plastics is carried out at washing machine control panel, stopper 25 pushes up oblique kicking block 22 tightly, the effect of pretension has been played to oblique kicking block 22, along with the increase of the injection pressure in the cavity of moulding plastics, stopper 25 still can be fine pushes up oblique kicking block 22 tightly, prevent oblique kicking block 22 and move backward, when pneumatic cylinder 24 and hydraulic pressure pipeline damaged, stopper 25 still can guarantee that oblique kicking block 22 does not move backward, it withdraws from to have avoided oblique ejector pin 21, make washing machine control panel can be fine mould plastics, the risk of being pushed out because of the great oblique ejector pin 21 that leads to of injection pressure when having reduced to mould plastics, the security of production has been improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. An injection molding mold for a control panel of a washing machine, comprising: the device comprises a front die (11), a rear die (12) and an inclined ejection mechanism (2) arranged on the front die (11);
an injection molding channel (111) is formed on the front mold (11);
the angle ejection mechanism (2) comprises an angle ejector rod (21) which is connected to the front die (11) in a sliding manner, an angle ejector block (22) which is arranged on the front die (11) and used for driving the angle ejector rod (21) to reciprocate, a pulling block (23) which is arranged on the front die (11) and used for driving the angle ejector block (22) to reciprocate, a hydraulic cylinder (24) which is arranged on the front die (11) and used for driving the pulling block (23) to reciprocate, a limiting block (25) which is arranged on the front die (11) and used for limiting the angle ejector block (22), and an elastic piece (26) which is arranged on the front die (11) and used for resetting the limiting block (25);
an injection molding cavity is formed among the inclined ejector rod (21), the front mold (11) and the rear mold (12), a sliding groove (211) is formed on the inclined ejector rod (21), a sliding rail (221) is formed on the inclined ejector block (22), the outer side surface of the sliding rail (221) is attached to the inner side surface of the sliding groove (211), a groove (231) is formed in the pulling block (23), a lug (222) is formed on the inclined ejecting block (22), the lug (222) is positioned in the groove (231), a limiting groove (112) is formed on the front die (11), the limiting block (25) is positioned in the limiting groove (112), the side surface of the limit block (25) is tightly propped against the inclined jacking block (22), the upper end surface of the limit block (25) is tightly propped against the pull block (23), two ends of the elastic piece (26) are respectively abutted against the front die (11) and the limiting block (25), the pull block (23) can press the limit block (25) into the limit groove (112).
2. An injection molding mold for a control panel of a washing machine according to claim 1, wherein: the slide rail (221) is perpendicular to the axis of the oblique mandril (21).
3. An injection molding mold for a control panel of a washing machine according to claim 1, wherein: the outer side surface of the inclined ejector rod (21) is attached to the outer side surface of the inclined ejector block (22).
4. An injection molding mold for a control panel of a washing machine according to claim 1, wherein: the limiting block (25) is perpendicular to the inclined ejecting block (22) and the pulling block (23).
5. An injection molding mold for a control panel of a washing machine according to claim 4, wherein: draw piece (23) to go up the shaping and have application of force inclined plane (232), stopper (25) are gone up the shaping and have atress inclined plane (251), application of force inclined plane (232) and the laminating of atress inclined plane (251), draw piece (23) to press stopper (25) to spacing groove (112) in through application of force inclined plane (232) and atress inclined plane (251).
6. An injection molding mold for a control panel of a washing machine according to claim 5, wherein: after the force bearing inclined plane (251) is separated from the force application inclined plane (232), the inner side face of the groove (231) is attached to the outer side face of the bump (222).
7. An injection molding mold for a control panel of a washing machine according to claim 1, wherein: the number of the limiting grooves (112) is two, and the two limiting grooves (112) are symmetrically distributed on two sides of the pull block (23).
8. An injection molding mold for a control panel of a washing machine according to claim 1, wherein: the elastic member (26) is a compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110354948.7A CN113183419A (en) | 2021-04-01 | 2021-04-01 | Injection molding mold for control panel of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110354948.7A CN113183419A (en) | 2021-04-01 | 2021-04-01 | Injection molding mold for control panel of washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113183419A true CN113183419A (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110354948.7A Pending CN113183419A (en) | 2021-04-01 | 2021-04-01 | Injection molding mold for control panel of washing machine |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1535805A (en) * | 2003-04-11 | 2004-10-13 | 乐金电子(天津)电器有限公司 | Control panel structure of washing machine and injection mould of control panel |
| CN102615793A (en) * | 2012-04-20 | 2012-08-01 | 宁波长华汽车装饰件有限公司 | Core-pulling structure for front mold sliding block of injection mold with self-locking mechanism |
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2021
- 2021-04-01 CN CN202110354948.7A patent/CN113183419A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1535805A (en) * | 2003-04-11 | 2004-10-13 | 乐金电子(天津)电器有限公司 | Control panel structure of washing machine and injection mould of control panel |
| CN102615793A (en) * | 2012-04-20 | 2012-08-01 | 宁波长华汽车装饰件有限公司 | Core-pulling structure for front mold sliding block of injection mold with self-locking mechanism |
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Application publication date: 20210730 |