CN108688083B - Legless plastic chair injection mold with slide block core-pulling mechanism - Google Patents
Legless plastic chair injection mold with slide block core-pulling mechanism Download PDFInfo
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- CN108688083B CN108688083B CN201810173977.1A CN201810173977A CN108688083B CN 108688083 B CN108688083 B CN 108688083B CN 201810173977 A CN201810173977 A CN 201810173977A CN 108688083 B CN108688083 B CN 108688083B
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- pulling
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- 238000002347 injection Methods 0.000 title claims abstract description 24
- 239000007924 injection Substances 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 238000009826 distribution Methods 0.000 claims description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000000498 cooling water Substances 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 88
- 230000009471 action Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- 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
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
-
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/44—Furniture or parts thereof
- B29L2031/443—Chairs
Abstract
The invention belongs to the field of injection molds, and relates to a legless plastic chair injection mold with a slide block core-pulling mechanism. The technical problems that in the prior art, the suction synchronism of the chair leg inserting holes is poor, and the chair without legs is easy to deform are solved. The movable mold plate comprises a movable mold plate, a fixed mold plate and a movable mold base plate, two chair leg inserting holes core pulling structures are arranged below the movable mold plate, a first oil distributing plate and a second oil distributing plate are arranged on the two chair leg inserting holes core pulling structures, a first oil distributing channel and a second oil distributing channel are arranged on the first oil distributing plate, a third oil distributing channel and a fourth oil distributing channel are arranged on the second oil distributing plate, the first oil distributing channel is connected with the third oil distributing channel, and the second oil distributing channel is connected with the fourth oil distributing channel. Compared with the prior art, the invention has the advantages that the core pulling of the chair leg inserting holes is synchronous, and the chair leg inserting holes are not easy to deform.
Description
Technical Field
The invention belongs to the field of injection molds, and relates to a legless plastic chair injection mold with a slide block core-pulling mechanism.
Background
The plastic chair has the characteristics of high production efficiency and low cost, has attractive and changeable appearance and bright and beautiful color, is suitable for modern life with high rhythm, and is a widely accepted and applied plastic product. The plastic chairs are usually designed as legless chairs, which are additionally inserted with legs or metal legs having complex reinforcing structures to achieve the purpose of reinforcing the strength of the plastic chairs, due to the limitation of the size of the mold and the purpose of reinforcing the strength of the plastic chairs. The plastic chair without legs is provided with a plurality of chair leg inserting holes.
However, when the plastic chair is cooled and demolded, the core pulling mechanism cannot core simultaneously, the chair surface is stressed unevenly and is deformed and even broken by torsion, so that the precision of the plugging holes of the chair legs cannot meet the plugging requirement, and even the whole legless chair product is damaged.
Disclosure of Invention
The invention aims at solving the problems and provides a legless plastic chair injection mold with a slide block core-pulling mechanism;
in order to achieve the above purpose, the present invention adopts the following technical scheme: the injection mold of the legless plastic chair with the slide block core pulling mechanism comprises a movable mold plate, a fixed mold plate and a movable mold base plate, wherein two chair leg inserting holes core pulling structures are arranged below the movable mold plate, a first oil distributing plate and a second oil distributing plate are arranged on the two chair leg inserting holes core pulling structures, a first oil distributing channel and a second oil distributing channel are arranged on the first oil distributing plate, a third oil distributing channel and a fourth oil distributing channel are arranged on the second oil distributing plate, the first oil distributing channel is connected with the third oil distributing channel, and the second oil distributing channel is connected with the fourth oil distributing channel.
In the leg-free plastic chair injection mold with the slide block core pulling mechanism, a first equal-pressure valve, an equal-pressure channel and a second equal-pressure valve are sequentially connected between the second oil distribution channel and the fourth oil distribution channel, a compensation channel is arranged between the first equal-pressure valve and the second equal-pressure valve, and the first oil distribution channel and the third oil distribution channel are connected in parallel and then are connected in the middle of the equal-pressure channel.
In the leg-free plastic chair injection mold with the slide block core pulling mechanism, an equal-pressure compensation channel is further connected between the first pressure valve and the second pressure valve, the lengths of the first oil distribution channel and the second oil distribution channel are equal, and the lengths of the second oil distribution channel and the fourth oil distribution channel are equal.
In the leg-free plastic chair injection mold with the slide block core pulling mechanism, the first oil distribution channel is provided with the first oil inlet, the second oil distribution channel is provided with the second oil inlet, the third oil distribution channel is provided with the third oil inlet, and the fourth oil distribution channel is provided with the fourth oil inlet.
In the leg-free plastic chair injection mold with the sliding block core pulling mechanism, the chair leg inserting hole core pulling structure comprises a linear driver, the first oil distributing plate and the second oil distributing plate are respectively and fixedly connected to the linear drivers of the two chair leg inserting hole core pulling structures, and the linear drivers are provided with two oil feeding ports.
In the leg-free plastic chair injection mold with the slide block core pulling mechanism, the chair leg inserting hole core pulling structure further comprises a guide block fixedly connected to the movable mold plate, a T-shaped guide groove is formed in the guide block, a T-shaped slide block is slidably connected to the T-shaped guide groove, a protruding portion is arranged on the T-shaped slide block and protrudes out of the T-shaped guide groove, and the linear driver is fixedly connected to one side, close to the movable mold plate, of the protruding portion.
In the legless plastic chair injection mold with the slide block core pulling mechanism, the protruding part is provided with the upper limit switch and the lower limit switch, the linear driver is provided with the upper brake block corresponding to the upper limit switch, and the guide block is provided with the lower brake block corresponding to the lower limit switch.
In the leg-free plastic chair injection mold with the slide block core pulling mechanism, the T-shaped slide block is provided with the core pulling press block and lower core pulling, one end of the lower core pulling close to the T-shaped slide block is provided with the fixed step, the other end of the lower core pulling close to the T-shaped slide block is provided with the core pulling core, the core pulling core is provided with the first inclined plane and the second inclined plane, the first inclined plane and the second inclined plane are obliquely intersected, and the core pulling core penetrates through the movable die plate and stretches into the cavity.
In the leg-free plastic chair injection mold with the slide block core pulling mechanism, the core pulling pressing block is pressed on the fixed step and fixedly connected with the T-shaped slide block, the movable mold plate is provided with the core pulling guide sleeve, the core pulling guide sleeve is sleeved on the lower core pulling, one end, close to the guide block, of the core pulling guide sleeve is provided with the positioning step, the guide block is pressed on the positioning step, and the fixed step and the positioning step are respectively provided with the rotation stopping plane.
In the leg-free plastic chair injection mold with the slide block core pulling mechanism, a cooling water well is arranged in the lower core pulling, two water distribution pipes are arranged on the T-shaped slide block, a water distribution plate is arranged on the movable mold base plate, water separation sheets are arranged in the cooling water well, the cooling water well is connected with the two water distribution pipes respectively, and the water distribution pipes are connected with the water distribution plate.
Compared with the prior art, the invention has the advantages that:
1. the linear driver independent of the movable template is arranged on the core pulling structure of the chair leg inserting holes, the lower core pulling and pulling action is realized before the die opening action, the cavity always plays a shaping role in the core pulling process of the chair leg inserting holes of the legless chair, and the legless chair is prevented from being deformed due to torsion in the core pulling process.
2. The lower core pulling action is synchronous, the pulling force is uniform, so that the leg-free chair generates uniform stress, and the phenomenon of stress concentration and distortion in the leg-free chair after the mold is opened is avoided.
3. The upper limit switch and the lower limit switch control core pulling action and resetting action accurately, the automation degree is high, and the energy consumption is reduced while accurate resetting and core pulling action are realized.
4. The water distribution plate uniformly feeds cooling water to the two lower loose cores simultaneously, so that the cooling of the chair leg inserting holes is prevented from being asynchronous when the cooling of the chair leg inserting holes is further accelerated, the stress concentration is caused, and the deformation occurs.
Drawings
Fig. 1 is a schematic view of the structure provided by the present invention.
Fig. 2 is a schematic diagram of a cavity structure provided by the invention.
Fig. 3 is a schematic drawing of the structure of the plug holes of the chair legs.
Fig. 4 is a sectional view of a core pulling structure of a chair leg plug hole provided by the invention.
Fig. 5 is a perspective view of a core pulling structure of a chair leg plug hole provided by the invention.
Fig. 6 is a schematic view of another angle of the core pulling structure of the plugging hole of the chair leg.
Fig. 7 is an exploded view of the core pulling structure of the plugging hole of the chair leg.
In the figure, a movable mold plate 1, a fixed mold plate 2, a movable mold cushion plate 3, a chair leg inserting hole core pulling structure 4, a first oil distribution plate 5, a second oil distribution plate 6, a first oil distribution channel 7, a second oil distribution channel 8, a third oil distribution channel 9, a fourth oil distribution channel 10, a first pressure equalizing valve 11, an equal pressure channel 12, a second pressure equalizing valve 13, an equal pressure compensating channel 14, a linear driver 15, a guide block 16, a T-shaped guide groove 17, a T-shaped sliding block 18, a protruding part 19, an upper limit switch 20, a lower limit switch 21, an upper brake block 22, a lower brake block 23, a core pulling pressing block 24, a lower core pulling 25, a fixed step 26, a core pulling core 27, a first inclined surface 28, a second inclined surface 29, a core pulling guide sleeve 30, a cooling water well 33, a water distributing pipe 34 and a water distributing plate 35.
Detailed Description
According to the illustration shown in fig. 1-3, the leg-free plastic chair injection mold with the slide block core pulling mechanism comprises a movable mold plate 1, a fixed mold plate 2 and a movable mold cushion plate 3, wherein two chair leg inserting holes core pulling structures 4 are arranged below the movable mold plate 1, a first oil distributing plate 5 and a second oil distributing plate 6 are arranged on the two chair leg inserting holes core pulling structures 4, a first oil distributing channel 7 and a second oil distributing channel 8 are arranged on the first oil distributing plate 5, a third oil distributing channel 9 and a fourth oil distributing channel 10 are arranged on the second oil distributing plate 6, the first oil distributing channel 7 is connected with the third oil distributing channel 9, and the second oil distributing channel 8 is connected with the fourth oil distributing channel 10.
After the injection molding of the legless chair is completed, the leg inserting hole core pulling structure 4 acts, the lower core pulling 25 is pulled out of the leg inserting hole of the legless chair, the movable mold plate 1 moves away from the fixed mold plate 2 to open the mold, and the legless chair is taken out. The linear driver 15 independent of the movable template 1 is arranged on the chair leg inserting hole core pulling structure 4, so that the lower core pulling 25 is performed before the die opening, the cavity always plays a shaping role in the core pulling process of the chair leg inserting hole of the legless chair, and the legless chair is prevented from being deformed due to torsion in the core pulling process.
The linear driver 15 is a bidirectional oil cylinder, oil inlet holes of the two bidirectional oil cylinders in the same direction are mutually communicated, equal force synchronization of the two bidirectional oil cylinders in the core pulling action process is achieved, and the phenomenon that uneven stress is generated on the leg-free chair due to uneven pulling force in the core pulling process of the two lower core pulling 25 in the leg inserting holes of the leg-free chair is further prevented, and after the mold is opened, distortion deformation occurs due to stress concentration in the leg-free chair is further prevented.
Specifically, a first isobaric valve 11, an isobaric channel 12 and a second isobaric valve 13 are sequentially connected between the second oil distribution channel 8 and the fourth oil distribution channel 10, and the first oil distribution channel 7 and the third oil distribution channel 9 are connected in parallel and then are connected in the middle of the isobaric channel 12. An isobaric compensation channel 14 is further connected between the first isobaric valve 11 and the second isobaric valve 13, the lengths of the first oil distribution channel 7 and the second oil distribution channel 8 are equal, and the lengths of the second oil distribution channel 8 and the fourth oil distribution channel 10 are equal. The first oil distribution channel 7 is provided with a first oil inlet, the second oil distribution channel 8 is provided with a second oil inlet, the third oil distribution channel 9 is provided with a third oil inlet, and the fourth oil distribution channel 10 is provided with a fourth oil inlet.
The external hydraulic system provides power for the leg inserting hole core pulling structure 4, hydraulic oil respectively enters the first oil distribution channel 7 and the third oil distribution channel 9 through the first oil distribution plate 5 and the second oil distribution plate 6 in the core pulling process of the leg inserting holes of the leg-free chair, flows to the equal-pressure channel after hydraulic oil is converged and flows to the first pressure valve 11 and the second pressure valve 13, and simultaneously enters the first oil inlet and the third oil inlet after the pressure of the two sides is equal. When the hydraulic oil on one side is larger than that on the other side, the hydraulic oil flows into the second oil distribution channel 8 and the fourth oil distribution channel 10 from the first pressure equalizing valve 11 and the second pressure equalizing valve 13, so that the pressure in the first oil distribution channel 7 and the pressure in the third oil distribution channel 9 are equal.
Preferably, the leg jack core-pulling structure 4 comprises a linear driver 15, the first oil distributing plate 5 and the second oil distributing plate 6 are respectively and fixedly connected to the linear drivers 15 of the two leg jack core-pulling structures 4, and two oil feeding ports are arranged on the linear drivers 15.
Preferably, the leg inserting hole core pulling structure 4 further comprises a guide block 16 fixedly connected to the movable template 1, a T-shaped guide groove 17 is formed in the guide block 16, a T-shaped sliding block 18 is slidably connected in the T-shaped guide groove 17, and a protruding portion 19 is arranged on the T-shaped sliding block 18 and protrudes out of the T-shaped guide groove 17. The linear actuator 15 is fixedly connected to a side of the protrusion 19 near the movable die plate 1. The die space is saved, the die size is compressed, an upper limit switch 20 and a lower limit switch 21 are arranged on the protruding portion 19, an upper brake block 22 corresponding to the upper limit switch 20 is arranged on the linear driver 15, and a lower brake block 23 corresponding to the lower limit switch 21 is arranged on the guide block 16. The core pulling action and the resetting action are accurate, the automation degree is high, and the energy consumption is reduced while the accurate resetting and the core pulling action are realized.
The T-shaped sliding block 18 slides up and down in the T-shaped guide groove 17 to drive the lower core pulling 25 to realize core pulling action or reset, the T-shaped sliding block 18 is clamped in the guide groove 17 in a sliding manner, the T-shaped sliding block 18 is prevented from being separated from the T-shaped guide groove 17 in the sliding process, and the lower core pulling 25 is broken.
Preferably, as shown in fig. 3-5, the T-shaped slide block 18 is provided with a core-pulling pressing block 24 and a lower core-pulling 25, one end of the lower core-pulling 25, which is close to the T-shaped slide block 18, is provided with a fixing step 26, the other end of the lower core-pulling 25 is provided with a core-pulling core 27, and for the purpose of simpler core-pulling, the core-pulling core 27 is provided with a first inclined surface 28 and a second inclined surface 29, so that the chair leg is more firmly inserted, the first inclined surface 28 and the second inclined surface 29 are obliquely intersected, a chair leg positioning inclined surface is formed in the chair leg inserting hole, and the chair leg is prevented from rotating after being inserted into the chair leg inserting hole. The core-pulling core 27 penetrates through the movable mould plate 1 and stretches into the cavity.
In this embodiment, the core-pulling pressing block 24 is preferably pressed on the fixing step 26 and is fixedly connected with the T-shaped sliding block 18, a positioning step is arranged at one end of the core-pulling guide sleeve 30, which is close to the guide block 16, the guide block is pressed on the positioning step, so that excessive connecting pieces on the lower core-pulling 25 are omitted, the space is saved, and the assembly and the disassembly are convenient. The movable template 1 is internally provided with a core-pulling guide sleeve 30, the core-pulling guide sleeve 30 is sleeved on the lower core-pulling 25, the abrasion of the lower core-pulling 25 core-pulling action on the movable template 1 is prevented, and when the core-pulling guide sleeve 30 is abraded, only the core-pulling guide sleeve is required to be replaced, so that the maintenance cost is reduced, and the service life of the die is prolonged. The fixed step 26 and the positioning step are respectively provided with a rotation stopping plane, so that the rotation of the lower loose core 25 is prevented, the rotation of the internal features of the inserting holes of the chair legs is influenced, and the chair legs cannot be inserted correctly.
Preferably, a cooling water well 33 is arranged in the lower core pulling 25, two water diversion pipes 34 are arranged on the T-shaped sliding block 18, a water distribution plate 35 is arranged on the movable mould base plate 3, water isolation sheets are arranged in the cooling water well 33, the cooling water well 33 is respectively connected with the two water diversion pipes, and the water diversion pipes 34 are connected with the water distribution plate 35. The water distribution plate 35 uniformly feeds cooling water to the two lower core-pulling holes simultaneously, so that the cooling of the chair leg inserting holes is not synchronous when the cooling is further accelerated, the stress concentration and the deformation are caused.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although terms such as the movable platen 1, the fixed platen 2, the movable platen pad 3, the leg insert hole core-pulling structure 4, the first oil distribution plate 5, the second oil distribution plate 6, the first oil distribution passage 7, the second oil distribution passage 8, the third oil distribution passage 9, the fourth oil distribution passage 10, the first pressure equalizing valve 11, the pressure equalizing passage 12, the second pressure equalizing valve 13, the pressure equalizing compensation passage 14, the linear actuator 15, the guide block 16, the T-shaped guide groove 17, the T-shaped slider 18, the protrusion 19, the upper limit switch 20, the lower limit switch 21, the upper brake block 22, the lower brake block 23, the core-pulling pressure block 24, the lower core-pulling 25, the fixing step 26, the core-pulling core 27, the first inclined surface 28, the second inclined surface 29, the core-pulling guide sleeve 30, the cooling water well 33, the water distributing pipe 34, the water distribution plate 35, etc. are used more herein, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the nature of the invention and should be construed in a manner consistent with their spirit and scope.
Claims (6)
1. The utility model provides a no leg plastic chair injection mold with slider mechanism of loosing core, includes movable mould board (1), fixed mould board (2) and movable mould backing plate (3), movable mould board (1) below be provided with two chair leg spliced eye loose core structures (4), its characterized in that is provided with first oil distributing plate (5) and second oil distributing plate (6) on two chair leg spliced eye loose core structures (4), first oil distributing plate (5) on be provided with first oil distributing channel (7) and second oil distributing channel (8), second oil distributing plate (6) on be provided with third oil distributing channel (9) and fourth oil distributing channel (10), first oil distributing channel (7) link to each other with third oil distributing channel (9), second oil distributing channel (8) link to each other with fourth oil distributing channel;
the chair leg inserting hole core-pulling structure (4) comprises linear drivers (15), the first oil distributing plate (5) and the second oil distributing plate (6) are respectively and fixedly connected to the linear drivers (15) of the two chair leg inserting hole core-pulling structures (4), and two oil feeding ports are arranged on the linear drivers (15);
the chair leg jack core pulling structure (4) further comprises a guide block (16) fixedly connected to the movable template (1), a T-shaped guide groove (17) is formed in the guide block (16), a T-shaped sliding block (18) is slidably connected in the T-shaped guide groove (17), a protruding portion (19) is arranged on the T-shaped sliding block (18) and protrudes out of the T-shaped guide groove (17), and the linear driver (15) is fixedly connected to one side, close to the movable template (1), of the protruding portion (19);
the novel plastic injection molding die is characterized in that a core-pulling pressing block (24) and a lower core-pulling block (25) are arranged on the T-shaped sliding block (18), a fixed step (26) is arranged at one end, close to the T-shaped sliding block (18), of the lower core-pulling block (25), a core-pulling core (27) is arranged at the other end, a first inclined surface (28) and a second inclined surface (29) are arranged on the core-pulling core (27), the first inclined surface (28) and the second inclined surface (29) are obliquely intersected, and the core-pulling core (27) penetrates through the movable die plate (1) to extend into the die cavity;
the core pulling pressing block (24) is pressed on the fixed step (26) and is fixedly connected with the T-shaped sliding block (18), the core pulling guide sleeve (30) is arranged in the movable template (1), the core pulling guide sleeve (30) is sleeved on the lower core pulling (25), one end, close to the guide block (16), of the core pulling guide sleeve (30) is provided with a positioning step, the guide block is pressed on the positioning step, and the fixed step (26) and the positioning step are respectively provided with a rotation stopping plane.
2. The injection mold of the legless plastic chair with the slide block core pulling mechanism according to claim 1, wherein a first pressure equalizing valve (11), an equal pressure equalizing channel (12) and a second pressure equalizing valve (13) are sequentially connected between the second oil distributing channel (8) and the fourth oil distributing channel (10), and the first oil distributing channel (7) and the third oil distributing channel (9) are connected in parallel and then are connected in the middle of the equal pressure equalizing channel (12).
3. The injection mold of the legless plastic chair with the slide block core pulling mechanism according to claim 2, wherein an isobaric compensation channel (14) is further connected between the first pressure equalizing valve (11) and the second pressure equalizing valve (13), the lengths of the first oil distributing channel (7) and the second oil distributing channel (8) are equal, and the lengths of the second oil distributing channel (8) and the fourth oil distributing channel (10) are equal.
4. The injection mold for the legless plastic chair with the slide block core pulling mechanism according to claim 3, wherein the first oil distribution channel (7) is provided with a first oil inlet, the second oil distribution channel (8) is provided with a second oil inlet, the third oil distribution channel (9) is provided with a third oil inlet, and the fourth oil distribution channel (10) is provided with a fourth oil inlet.
5. The plastic chair injection mold with the slide block core pulling mechanism as claimed in claim 4, wherein the protruding part (19) is provided with an upper limit switch (20) and a lower limit switch (21), the linear driver (15) is provided with an upper brake block (22) corresponding to the upper limit switch (20), and the guide block (16) is provided with a lower brake block (23) corresponding to the lower limit switch (21).
6. The plastic chair injection mold with the slide block core pulling mechanism, as claimed in claim 5, characterized in that a cooling water well (33) is arranged in the lower core pulling mechanism (25), two water distribution pipes (34) are arranged on the T-shaped slide block (18), a water distribution plate (35) is arranged on the movable mold base plate (3), water separation sheets are arranged in the cooling water well (33), the cooling water well (33) is connected with the two water distribution pipes respectively, and the water distribution pipes (34) are connected with the water distribution plate (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810173977.1A CN108688083B (en) | 2018-03-02 | 2018-03-02 | Legless plastic chair injection mold with slide block core-pulling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810173977.1A CN108688083B (en) | 2018-03-02 | 2018-03-02 | Legless plastic chair injection mold with slide block core-pulling mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108688083A CN108688083A (en) | 2018-10-23 |
| CN108688083B true CN108688083B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810173977.1A Active CN108688083B (en) | 2018-03-02 | 2018-03-02 | Legless plastic chair injection mold with slide block core-pulling mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN108688083B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112549437B (en) * | 2019-09-10 | 2022-10-04 | 深圳兴精科塑胶模具有限公司 | Injection molding die for refueling mask of oil tank |
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