CN114161687A - Die pressure balancing device - Google Patents
Die pressure balancing device Download PDFInfo
- Publication number
- CN114161687A CN114161687A CN202111440502.2A CN202111440502A CN114161687A CN 114161687 A CN114161687 A CN 114161687A CN 202111440502 A CN202111440502 A CN 202111440502A CN 114161687 A CN114161687 A CN 114161687A
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- China
- Prior art keywords
- backplate
- floating
- oil
- back plate
- cylinder body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000003921 oil Substances 0.000 claims abstract description 62
- 238000003860 storage Methods 0.000 claims abstract description 26
- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 239000011324 bead Substances 0.000 claims 1
- 238000007664 blowing Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001133184 Colletotrichum agaves Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/56—Opening, closing or clamping means
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/56—Opening, closing or clamping means
- B29C2049/563—Clamping means
Abstract
The invention relates to the technical field of extrusion-blowing dies, and particularly discloses a die pressure balancing device which comprises a first floating back plate, a second floating back plate and pressure regulating devices, wherein the first floating back plate and the second floating back plate are tightly attached and fixedly connected through a plurality of bolts, a sealed oil storage tank is formed between the first floating back plate and the second floating back plate, hydraulic oil is filled in the oil storage tank, a plurality of oil inlet and outlet screw holes are formed in the top surface of the second floating back plate, the oil inlet and outlet screw holes are communicated with the oil storage tank, sealing bolts are in threaded connection with the oil inlet and outlet screw holes, oil passing holes are formed in two ends of the bottom surface of the second floating back plate and are communicated with the oil storage tank, the two pressure regulating devices are provided, and the two pressure regulating devices respectively regulate the oil pressure of the hydraulic oil through the two oil passing holes, the design is reasonable, the mould can be pressed and balanced, and the phenomenon that the flash cannot fall off is eliminated.
Description
Technical Field
The invention relates to the technical field of extrusion-blowing dies, in particular to a die pressure balancing device.
Background
In the process of forming products by an extrusion-blow process, a mould and a machine station play an important role in the quality requirements of the products, most of the existing mould mounting modes are that a mould back plate is connected with a machine station template through a mould locking screw, the conditions that the pressures borne by a plurality of connecting points of the mould back plate and the machine station template are different during mould closing easily occur, the pressure is difficult to disperse in a place with large pressure bearing, the pressure cannot be compensated in a place with small pressure bearing, the pressure borne by the mould is unbalanced, in the production process, the machine station is fixed and unchanged, the mould can be different along with the change of the products, particularly, a multi-cavity product with a handle has the defects that the product has long shearing mouth and the position is changed along with different products, if the pressure is insufficient at the position of the product where the burrs are easy to occur, the problems that the burrs of the products cannot be knocked out and are not good are caused, and manual burrs need to be cut, resulting in increased cost and contamination of the article, affecting the appearance and production efficiency of the article.
Disclosure of Invention
To solve the problems mentioned in the background art, an object of the present invention is to provide a mold pressure balancing apparatus.
In order to achieve the above object, the technical solution of the present invention is:
the die pressure balancing device comprises a first floating back plate, a second floating back plate and a pressure regulating device, the first floating back plate and the second floating back plate are tightly attached and fixedly connected through a plurality of bolts, a sealed oil storage tank is formed between the first floating back plate and the second floating back plate, the oil storage tank is filled with hydraulic oil, the top surface of the second floating back plate is provided with a plurality of oil inlet and outlet screw holes, the oil inlet and outlet screw hole is communicated with the oil storage tank, the oil inlet and outlet screw hole is internally and threadedly connected with a sealing bolt, oil passing holes are formed at two ends of the bottom surface of the second floating back plate and communicated with the oil storage tank, the first floating back plate is fixedly connected with a mould back plate of the extrusion-blowing mould, the second floating back plate is fixedly connected with a machine table template of the extrusion-blowing machine, the pressure regulating device is equipped with two, two the pressure regulating device is respectively through two the oil pressure of hydraulic oil is adjusted to the oilhole.
Further, the pressure regulating device includes cylinder body, piston rod, fixed block and adjusting screw, the cylinder body is rectangular size and level setting, it is same through many bolted connection respectively to first unsteady backplate and the homonymy footing of the unsteady backplate of second the cylinder body, the oil through hole has been seted up on the top surface of cylinder body, the oil through hole intercommunication the inner chamber and the oilhole of cylinder body, piston rod sliding connection in the inner chamber of cylinder body, fixed block fixed connection be in on the jar lid of cylinder body, adjusting screw threaded connection in the fixed block, adjusting screw with the coaxial setting of piston rod and butt.
Furthermore, a sealing ring is arranged on the edge opening of the oil through hole.
Furthermore, the bottom surfaces of the first floating back plate and the second floating back plate are respectively connected with the same backing plate through a plurality of bolts, and the backing plates are abutted to the two cylinder bodies.
Furthermore, both ends of the bottom surface of the second floating back plate are respectively provided with a base plate positioning block protruding downwards, and the base plate is matched with the two base plate positioning blocks.
Furthermore, the oil storage tank is arranged on the second floating back plate, and a sealing strip is arranged at the edge of the oil storage tank.
Furthermore, the left side and the right side of the second floating back plate are both provided with first positioning blocks, the bottom of the second floating back plate is provided with two second positioning blocks, the first positioning blocks and the second positioning blocks are both protruded towards the first floating back plate, and the first floating back plate is matched with the first positioning blocks and the two second positioning blocks.
Furthermore, a mold back plate positioning groove is formed in the side, facing the mold back plate, of the first floating back plate, and a machine table template positioning groove is formed in the side, facing the machine table template, of the second floating back plate.
The invention has the beneficial effects that: according to the invention, the first floating back plate and the second floating back plate are additionally arranged between the mould back plate and the machine table template, the oil storage tank is formed between the first floating back plate and the second floating back plate, hydraulic oil is filled in the oil storage tank, the pressure of the machine table template is transmitted to the hydraulic oil and the first floating back plate through the second floating back plate, and secondary distribution can be carried out on the pressure of the machine table template by adjusting the oil pressure of the hydraulic oil through the pressure adjusting device, so that the pressure borne by the mould is balanced, the occurrence of flash of a product is effectively avoided, and the product quality and the production efficiency are improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a connection structure of the mold pressure balancing device, the platen and the mold back plate according to the present invention;
FIG. 3 is a formal diagram of a connection structure of a second floating back plate, a pressure regulating device and a backing plate in the invention;
FIG. 4 is a detailed view at A of FIG. 3;
FIG. 5 is an exploded view of the present invention;
FIG. 6 is an exploded view of a connection structure of a first floating backplate and a second floating backplate according to the present invention;
FIG. 7 is an exploded view of a connection structure of a first floating backplate and a second floating backplate according to the present invention;
fig. 8 is an exploded view of the pressure regulating device of the present invention.
Description of the figure numbering: 1. the device comprises a first floating back plate, 11, a mold back plate positioning groove, 2, a second floating back plate, 21, an oil inlet and outlet screw hole, 22, an oil passing hole, 23, a machine table template positioning groove, 3, a pressure regulating device, 31, a cylinder body, 32, a piston rod, 33, a fixing block, 34, a regulating screw, 35, an oil passing hole, 36, a Tescont seal, 37, a wear-resisting ring, 38, a cylinder cover, 39, a dust-proof ring, 391, a sealing ring, 4, an oil storage groove, 41, a sealing strip, 5, a sealing bolt, 6, a mold back plate, 7, a machine table template, 8, a cushion plate, 9, a cushion plate positioning block, 10, a first positioning block, 110 and a second positioning block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments disclosed herein are intended to be within the scope of the present invention.
As shown in fig. 1-8, the mold pressure balancing device comprises a first floating backplate 1, a second floating backplate 2 and a pressure regulating device 3, wherein the first floating backplate 1 and the second floating backplate 2 are tightly attached and fixedly connected by a plurality of bolts, a sealed oil storage tank 4 is formed between the first floating backplate 1 and the second floating backplate 2, the oil storage tank 4 is filled with hydraulic oil, the top surface of the second floating backplate 2 is provided with four oil inlet and outlet screw holes 21, the oil inlet and outlet screw holes 21 are communicated with the oil storage tank 4, the oil inlet and outlet screw holes 21 are internally threaded with sealing bolts 5, both ends of the bottom surface of the second floating backplate 2 are provided with oil passing holes 22, the oil passing holes 22 are communicated with the oil storage tank 4, the first floating backplate 1 is fixedly connected with a mold backplate 6 of an extrusion blow mold by a plurality of bolts, the second floating backplate 2 is fixedly connected with a machine template 7 of an extrusion blow machine by a plurality of bolts, pressure regulating device 3 is equipped with two, every pressure regulating device 3 all includes cylinder body 31, piston rod 32, fixed block 33 and adjusting screw 34, cylinder body 31 is cuboid type and level setting, the same cylinder body 31 of first unsteady backplate 1 and the unsteady backplate 2 of second homonymy footing respectively through three bolted connection, oil through hole 35 has been seted up on the top surface of cylinder body 31, oil through hole 35 communicates the inner chamber and the oil through hole 22 of cylinder body 31, piston rod 32 passes through teskat and seals 36 and wear-resisting ring 37 sliding connection in the inner chamber of cylinder body 31, fixed block 33 fixed connection is on the cylinder cap 38 of cylinder body 31, be equipped with dust ring 39 in the cylinder cap 38, piston rod 32 and dust ring 39 sliding connection, adjusting screw 34 threaded connection is in fixed block 33, adjusting screw 34 and the coaxial setting of piston rod 32 and butt, adjusting screw 34 is interior hexagonal screw.
The die pressure balancing device is required to be arranged on two half dies of the extrusion-blowing die, when in installation, the first floating back plate 1 is arranged on the die back plate 6 of one half die by using the hexagon socket head cap screw, then the second floating back plate 2 is connected with the first floating back plate 1 by using the hexagon socket head cap screw, then the pressure regulating device 3 is arranged, the piston rod 32 is positioned at the initial pressure regulating position, after the pressure regulating device 3 is installed, hydraulic oil is injected into the oil storage tank 4 through the oil inlet and outlet screw holes 21, the inner cavity of the cylinder body 31 and the oil storage tank 4 are filled with the hydraulic oil, then four sealing bolts 5 are screwed, then the second floating back plate 2 is arranged on the machine table template 7 by using the hexagon socket head cap screw, the installation of one half die is completed, then the installation of the other die is completed in the same way, when in use, the pressure is transmitted to the second floating back plate 2 by the machine table template 7, the second floating back plate 2 transmits the pressure to the hydraulic oil and the first floating back plate 1, first 1 backplate that floats gives mould backplate 6 with pressure transfer, when the mould atress was inhomogeneous, adopt hexagon socket wrench rotation adjusting screw 34, make piston rod 32 to cylinder body 31 internal motion, because hydraulic oil has filled the inner chamber of oil storage tank 4 and cylinder body 31, when piston rod 32 inwards moves, can form the pressure boost effect, the pressure dispersion of the very big position of atress can be gone up with the mould originally to the increased oil pressure to other atress places that are not enough, the pressure balance that makes the mould receive.
In this embodiment, the edge of the oil hole 35 is provided with a seal ring 391 to improve sealing performance and prevent leakage of hydraulic oil.
In this embodiment, the bottom surfaces of the first floating backplate 1 and the second floating backplate 2 are respectively connected with the same backing plate 8 through four bolts, and the backing plate 8 is abutted against the two cylinders 31, so that the connection stability of the first floating backplate 1, the second floating backplate 2 and the cylinders 31 is improved.
In this embodiment, the both ends of the bottom surface of the floating backplate 2 of second all are equipped with downwardly protruding backing plate locating piece 9, and backing plate locating piece 9 passes through hexagon socket head cap screw and connects in the recess of the bottom surface of the floating backplate 2 of second, and first floating backplate 1 and two backing plate locating pieces 9 cooperate the installation, and backing plate 8 and two backing plate locating pieces 9 cooperate the installation, are convenient for fix a position backing plate 8's position fast.
In this embodiment, oil storage tank 4 is seted up on the second backplate 2 that floats, and oil storage tank 4's edge is equipped with high temperature silica gel sealing strip 41, and structural design is reasonable, the processing of being convenient for.
In this embodiment, the left and right sides of the second floating backplate 2 are provided with the first positioning blocks 10, the first positioning blocks 10 are installed in the grooves on the left and right sides of the second floating backplate 2 through hexagon socket head cap screws, the bottom side of the second floating backplate 2 is provided with the two second positioning blocks 110, the second positioning blocks 110 are installed in the grooves on the bottom side of the second floating backplate 2 through hexagon socket head cap screws, the first positioning blocks 10 and the second positioning blocks 110 are both protruded towards the first floating backplate 1, the first floating backplate 1 is installed in cooperation with the two first positioning blocks 10 and the two second positioning blocks 110, the first floating backplate 1 and the second floating backplate 2 can be conveniently and rapidly aligned, and the installation efficiency is high.
In this embodiment, the side of the first floating backplate 1 facing the mold backplate 6 is provided with a mold backplate positioning groove 11, and the side of the second floating backplate 2 facing the machine template 7 is provided with a machine template positioning groove 23, so that the installation positions of the first floating backplate 1 and the second floating backplate 2 can be accurately positioned.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the intention of all modifications, equivalents, improvements, and equivalents falling within the spirit and scope of the invention.
Claims (8)
1. Mould pressure balancing device, its characterized in that, including first unsteady backplate (1), the unsteady backplate of second (2) and regulator (3), first unsteady backplate (1) and the unsteady backplate of second (2) closely laminate and pass through a plurality of bolt rigid couplings, be formed with sealed oil storage tank (4) between first unsteady backplate (1) and the unsteady backplate of second (2), oil storage tank (4) intussuseption is filled with hydraulic oil, a plurality of oily screw (21) of advancing are seted up on the top surface of the unsteady backplate of second (2), advance oily screw (21) with oil storage tank (4) intercommunication and advance oily screw (21) female connection has sealing bolt (5), oilhole (22) have all been seted up at the both ends of the bottom surface of the unsteady backplate of second (2), cross oilhole (22) with oil storage tank (4) intercommunication, first backplate (1) and the mould backplate (6) rigid coupling of crowded mould that blows, backplate (2) and the board template (7) rigid coupling of crowded machine that blows are floated to the second, pressure regulating device (3) are equipped with two, two pressure regulating device (3) are respectively through two cross oilhole (22) and adjust the oil pressure of hydraulic oil.
2. The mold pressure balancing device according to claim 1, wherein the pressure adjusting device (3) comprises a cylinder body (31), a piston rod (32), a fixing block (33) and an adjusting screw (34), the cylinder body (31) is in a cuboid shape and is horizontally arranged, feet on the same side of the first floating back plate (1) and the second floating back plate (2) are respectively connected with the same cylinder body (31) through a plurality of bolts, an oil through hole (35) is formed in the top surface of the cylinder body (31), the oil through hole (35) is communicated with an inner cavity of the cylinder body (31) and an oil through hole (22), the piston rod (32) is slidably connected in the inner cavity of the cylinder body (31), the fixing block (33) is fixedly connected on a cylinder cover (38) of the cylinder body (31), and the adjusting screw (34) is in threaded connection with the fixing block (33), the adjusting screw rod (34) is coaxially arranged with the piston rod (32) and is abutted against the piston rod.
3. The die pressure equalizing device according to claim 2, wherein a seal ring (391) is provided on a bead of the oil passage hole (35).
4. The mold pressure balancing device according to claim 2, wherein the bottom surfaces of the first floating backplate (1) and the second floating backplate (2) are respectively connected with a same backing plate (8) through a plurality of bolts, and the backing plates (8) are abutted against the cylinder body (31).
5. The mold pressure balancing device according to claim 4, wherein both ends of the bottom surface of the second floating backplate (2) are provided with a downwardly protruding backing plate positioning block (9), and the backing plate (8) is installed in cooperation with the two backing plate positioning blocks (9).
6. The die pressure equalizing device according to claim 1, characterized in that the oil reservoir (4) opens onto the second floating backplate (2), the edge of the oil reservoir (4) being provided with a sealing strip (41).
7. The mold pressure balancing device according to claim 1, wherein the second floating backplate (2) is provided with a first positioning block (10) on each of the left and right sides, the bottom side of the second floating backplate (2) is provided with two second positioning blocks (110), the first positioning block (10) and the second positioning block (110) are both protruded towards the first floating backplate (1), and the first floating backplate (1) is installed in cooperation with the two first positioning blocks (10) and the two second positioning blocks (110).
8. The mold pressure balancing device according to claim 1, wherein a mold back plate positioning groove (11) is formed on a side of the first floating back plate (1) facing the mold back plate (6), and a machine platen positioning groove (23) is formed on a side of the second floating back plate (2) facing the machine platen (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111440502.2A CN114161687A (en) | 2021-11-30 | 2021-11-30 | Die pressure balancing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111440502.2A CN114161687A (en) | 2021-11-30 | 2021-11-30 | Die pressure balancing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114161687A true CN114161687A (en) | 2022-03-11 |
Family
ID=80481805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111440502.2A Pending CN114161687A (en) | 2021-11-30 | 2021-11-30 | Die pressure balancing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114161687A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4451964A (en) * | 1980-02-20 | 1984-06-05 | Avm Corporation | Method of making a pressurized pneumatic counterbalance |
| JP2012076388A (en) * | 2010-10-04 | 2012-04-19 | Yamashiro Seiki Seisakusho:Kk | Mold clamping force adjusting device of mold clamping device |
| CN104923779A (en) * | 2015-07-07 | 2015-09-23 | 上海平野磁气有限公司 | One-die-multiple-output ring-type magnet blank isobaric floating pressing die and method |
| CN213451434U (en) * | 2020-10-26 | 2021-06-15 | 徐笑鸥 | Normally open type brake caliper capable of automatically adjusting clearance by utilizing floating piston |
-
2021
- 2021-11-30 CN CN202111440502.2A patent/CN114161687A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4451964A (en) * | 1980-02-20 | 1984-06-05 | Avm Corporation | Method of making a pressurized pneumatic counterbalance |
| JP2012076388A (en) * | 2010-10-04 | 2012-04-19 | Yamashiro Seiki Seisakusho:Kk | Mold clamping force adjusting device of mold clamping device |
| CN104923779A (en) * | 2015-07-07 | 2015-09-23 | 上海平野磁气有限公司 | One-die-multiple-output ring-type magnet blank isobaric floating pressing die and method |
| CN213451434U (en) * | 2020-10-26 | 2021-06-15 | 徐笑鸥 | Normally open type brake caliper capable of automatically adjusting clearance by utilizing floating piston |
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