CN115319990A - Plastic plate forming die - Google Patents
Plastic plate forming die Download PDFInfo
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- CN115319990A CN115319990A CN202211249779.1A CN202211249779A CN115319990A CN 115319990 A CN115319990 A CN 115319990A CN 202211249779 A CN202211249779 A CN 202211249779A CN 115319990 A CN115319990 A CN 115319990A
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- 239000004033 plastic Substances 0.000 title claims abstract description 18
- 229920003023 plastic Polymers 0.000 title claims abstract description 18
- 238000003825 pressing Methods 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 73
- 238000001816 cooling Methods 0.000 claims description 27
- 238000001125 extrusion Methods 0.000 claims description 9
- 239000002985 plastic film Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 abstract description 5
- 230000006978 adaptation Effects 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010137 moulding (plastic) Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000013519 translation Methods 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
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- 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
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of plastic plate forming equipment, and particularly relates to a plastic plate forming die. The plastic plate forming die comprises a rack, a die plate adjusting mechanism, a lower die holder and an upper die holder, wherein the die plate adjusting mechanism comprises a die plate assembly and a screw rod adjusting assembly, the die plate assembly is arranged in a die frame and can surround a square cavity, the screw rod adjusting assembly can adjust the die plate assembly to change the size of the square cavity, a forming pressing block is arranged on the upper die holder, and the forming pressing block is matched with the square cavity. When using, through the size that utilizes lead screw adjustment mechanism to adjust the square cavity that the template subassembly encloses, then the shaping briquetting cooperation of upper die base, square cavity and adaptation, just can the shaping panel to only need change the shaping briquetting, just can satisfy the shaping demand of not unidimensional panel, need not change different moulds, the suitability of mould is strong.
Description
Technical Field
The invention belongs to the technical field of plastic plate forming equipment, and particularly relates to a plastic plate forming die.
Background
Plastic sheets are the materials commonly used in the prior art, wherein plastic sheets are usually formed by forming molds. In the prior art, for example, chinese patent CN2019212440477 discloses a plastic molding die for improving a finished product qualification rate, and the molding die can improve the practicability and stability of the plastic molding die.
The common forming method of plastic sheet is compression molding method, which means that after charging and pressurizing the mold, the mold and the powder material are heated and plasticized by hot oil, cooled after pressure maintaining, and finally the product is taken out. However, the existing plate mold can only produce plates with specific sizes, when plates with different sizes are produced, different molds need to be replaced, and the mold is poor in adaptability.
Disclosure of Invention
Therefore, it is necessary to provide a plastic plate forming mold aiming at the problems existing in the prior art, so as to solve the problem that the forming mold in the prior art has poor adaptability.
The above purpose is realized by the following technical scheme:
a plastic sheet forming die comprising:
the mould comprises a rack, wherein a mould frame is arranged on the rack;
the template adjusting mechanism comprises a template assembly and a screw rod adjusting assembly, the template assembly is arranged in the mold frame and can enclose a square cavity, and the screw rod adjusting assembly can adjust the template assembly to change the size of the square cavity;
the lower die holder is arranged on the rack in a guiding and sliding manner and is provided with a lower extrusion surface, and the lower extrusion surface is used for being pressed against the lower bottom surface of the die plate assembly;
the upper die base is arranged on the rack in a guiding sliding manner, and is provided with a forming pressing block which is matched with the square cavity;
the template assembly comprises four templates, the four templates are respectively a first template, a second template, a third template and a fourth template, the first template and the third template are arranged at intervals and are parallel to each other, the second template and the fourth template are arranged at intervals and are parallel to each other, two templates which are arbitrarily adjacent in the four templates are perpendicular to each other, the screw rod adjusting assembly comprises four screw rods, the four screw rods can translate along the direction perpendicular to the axes of the four screw rods, the four screw rods are respectively a first screw rod, a second screw rod, a third screw rod and a fourth screw rod, the first screw rod is in threaded fit with the first template, the second screw rod is in threaded fit with the second template, the third screw rod is in threaded fit with the third template, the fourth screw rod is in threaded fit with the fourth template, when the four screw rods rotate, the corresponding templates can be driven to move on the screw rods, the first screw rod is connected with the third screw rod through a transmission belt, the screw rotation directions of the first screw rod are opposite, the second screw rod is connected with the fourth screw rod through a transmission belt, the screw rod is connected with the fourth screw rod, and the screw rod is used for tensioning of a mold frame.
Furthermore, the gear transmission assembly comprises a transmission gear ring, a transmission gear, a first bevel gear and a second bevel gear, the transmission gear ring is sleeved on the first threaded rod, the first threaded rod is provided with a mounting seat, the transmission gear is fixedly connected with the first bevel gear and rotatably mounted on the mounting seat, the second bevel gear is arranged on the second threaded rod, the transmission gear ring is meshed with the transmission gear, and the first bevel gear is meshed with the second bevel gear.
Furthermore, the transmission gear ring is in one-way transmission connection with the first threaded rod, a guide rod is fixed on the transmission gear, a first pressure spring is sleeved on the guide rod, a guide hole is formed in the mounting seat, the guide rod is slidably inserted into the guide hole in a guide manner, a second bevel gear sleeve is arranged on the second threaded rod and is in rotation-stopping connection with the second threaded rod, the second bevel gear can axially slide on the second threaded rod, a limiting part is fixedly arranged on the second threaded rod, and a second pressure spring is arranged between the limiting part and the second bevel gear.
Furthermore, the peripheral surfaces of the meshing teeth on the first bevel gear and the meshing teeth on the second bevel gear are arc-shaped surfaces.
Furthermore, the tensioning assembly comprises a tensioning pressure spring, a guide shaft and a tensioning roller, a first end of the tensioning pressure spring is fixed on the mold frame, a second end of the tensioning pressure spring is fixedly connected with the guide shaft, the guide shaft is arranged on the mold frame in a guiding and sliding mode along the vertical direction, the tensioning roller is rotatably arranged on the guide shaft, and the tensioning roller is used for jacking and pressing the transmission belt to enable the transmission belt to be tensioned.
Further, the mould frame is the square frame that four curb plates enclose, is provided with a plurality of slip slot holes with the threaded rod one-to-one on the curb plate, and the threaded rod can be the translation in the slip slot hole.
Further, the cooling device comprises a cooling assembly arranged on the rack, and the cooling assembly is used for cooling the formed plate.
Further, the cooling assembly comprises a cooling fan and a cooling pipeline, and an air outlet facing the lower die holder is formed in the cooling pipeline.
Furthermore, a first rotating hand wheel is fixed at the end part of the first threaded rod, and a second rotating hand wheel is fixed at the end part of the second threaded rod.
The beneficial effects of the invention are: when the plastic plate forming die is used, the four die plates are correspondingly matched with the four threaded rods, the four corresponding die plates are adjusted by the four threaded rods, so that the size of a square cavity formed by the four die plates can be adjusted, then the upper die base, the square cavity and the adaptive forming press block are matched, plates can be formed, the forming requirements of the plates with different sizes can be met only by replacing the forming press block, different dies do not need to be replaced, and the applicability of the die is high.
Drawings
Fig. 1 is a schematic structural view of an embodiment 1 of the plastic sheet forming mold of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a schematic structural view of the base and cooling assembly of FIG. 1;
FIG. 4 is an exploded view of the part of FIG. 1 with portions of the structure hidden;
FIG. 5 is a schematic structural view of the mounting post, mold frame and template adjustment mechanism of FIG. 1;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a schematic structural view of FIG. 5 with the mounting posts and mold frame removed;
fig. 8 is a partial enlarged view of a point a in fig. 7;
FIG. 9 is a schematic structural view of the mounting base, the first compression spring, the second compression spring and the gear assembly of FIG. 7
Wherein:
110. a base; 112. a guide through hole; 120. mounting a column; 130. mounting a plate;
210. a cooling fan; 220. a cooling pipe; 230. a pipe support;
310. a lower mold column; 320. a lower stripper plate;
410. an upper stripper plate; 420. putting the mold pillar on the mold; 430. forming and pressing blocks;
500. a mold frame; 510. enclosing plates; 512. a guide groove; 514. a sliding long groove; 516. a fixed block; 520. a baffle plate; 522. pressing a through hole;
601. a driving wheel; 603. a transmission belt;
612. a first template; 614. a second template; 616. a third template; 618. a fourth template;
622. a first threaded rod; 624. a second threaded rod; 626. a third threaded rod; 628. a fourth threaded rod;
632. tensioning the pressure spring; 634. a guide shaft; 636. tensioning rollers;
642. a transmission gear ring; 644. a transmission gear; 646. a first bevel gear; 648. a second bevel gear; 649. a mounting base; 650. a guide rod; 652. a first pressure spring; 654. a second pressure spring;
661. a first rotating handwheel; 663. a second rotating handwheel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below by way of embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The ordinal numbers used herein for the components, such as "first," "second," etc., are used merely to distinguish between the objects described, and do not have any sequential or technical meaning. The term "connected" and "coupled" as used herein includes both direct and indirect connections (couplings), unless otherwise specified. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The plastic plate forming mold of the present invention will be described below with reference to the drawings and the embodiments.
Embodiment 1 of the plastic sheet molding die of the present invention:
as shown in fig. 1 to 9, the plastic plate forming mold of the present embodiment includes a frame, a cooling assembly, an upper mold base, a lower mold base, a mold frame 500, and a mold plate adjusting mechanism.
The frame includes base 110 and erection column 120, base 110 is platelike structure, base 110 both sides set up and respectively are equipped with a mounting panel 130, cooling unit installs on mounting panel 130, cooling unit includes cooling blower 210, cooling tube 220 and pipe bracket 230, cooling blower 210 and pipe bracket 230 are fixed on mounting panel 130, after cooling tube 220 links to each other with cooling blower 210, by pipe bracket 230 support, be provided with the gas outlet towards the frame middle part on the cooling tube 220, the gas that blows off of gas outlet can cool off the panel after the shaping. The mounting posts 120 are fixedly disposed at four corners of the base 110. The base 110 is provided at the middle thereof with a guide through-hole 112.
The lower die holder includes lower post 310 and lower stripper plate 320 that fixed connection is in the same place, and the upper surface of lower stripper plate 320 is the holding surface, and lower post 310 direction slides and wears to adorn in direction through-hole 112 and stretch out from the lower surface of base 110, and lower post 310 and pneumatic cylinder fixed connection do benefit to the pneumatic cylinder and can drive the lower die holder and reciprocate.
The mold frame 500 includes a baffle 520 and four end-to-end enclosures 510, the four enclosures 510 being secured to the mounting posts 120, the baffle 520 being disposed above the enclosures 510 and secured to the mounting posts 120.
The upper die base comprises an upper extrusion plate 410 and an upper die column 420, the upper die column 420 is fixed on the upper surface of the upper extrusion plate 410 and driven by a hydraulic cylinder, a forming press block 430 is detachably arranged on the lower surface of the upper extrusion plate 410, and a press block through hole 522 for the forming press block 430 to pass through is formed in the baffle 520.
The template adjusting mechanism comprises a template assembly and a screw rod adjusting assembly, the template assembly is arranged in the mold frame 500 and can be enclosed into a square cavity, the screw rod adjusting assembly can adjust the template assembly to change the size of the square cavity, and the square cavity can be adjusted to be square or rectangular according to the shape of a required plate. The forming pressing block 430 can extend into the square cavity, the forming pressing block 430, the template assembly and the supporting surface are matched to form a plate, and when the forming pressing block 430 is used, the forming pressing block 430 with the corresponding size can be flexibly selected according to the size of the square cavity. The lower extrusion plate 320 is provided with a heat conduction oil flow channel, and after the powder raw materials are injected into the square cavity, heat conduction oil is introduced into the heat conduction oil flow channel, so that the heat conduction oil is favorable for heating the powder raw materials, the powder raw materials are softened, and the plate can be conveniently extruded and formed.
The template assembly comprises four templates which are respectively a first template 612, a second template 614, a third template 616 and a fourth template 618, wherein the first template 612 and the third template 616 are arranged at intervals and are parallel to each other, the second template 614 and the fourth template 618 are arranged at intervals and are parallel to each other, and any two adjacent templates in the four templates are vertical to each other.
The first end of the first mold plate 612 is provided with a threaded hole, and the second end of the first mold plate is supported on the surface of the second mold plate 614 and can slide relative to the surface of the second mold plate 614. The second template 614 has a first end provided with a threaded hole and a second end abutting against a surface of the third template 616 and being capable of sliding relative to the surface of the third template 616. The third mold plate 616 has a first end provided with a threaded hole and a second end abutting against the surface of the fourth mold plate 618 and capable of sliding relative to the surface of the fourth mold plate 618. The fourth mold plate 618 has a first end provided with a threaded hole and a second end abutting against the surface of the first mold plate 612 and capable of sliding relative to the surface of the first mold plate 612.
The four templates can enclose a square cavity, and the size of the square cavity can be changed by enabling the four templates to slide relatively.
The screw rod adjusting assembly comprises four threaded rods, namely a first threaded rod 622, a second threaded rod 624, a third threaded rod 626 and a fourth threaded rod 628, wherein the screw thread direction on the first threaded rod 622 is opposite to the screw thread direction on the third threaded rod 626, and the screw thread direction on the second threaded rod 624 is opposite to the screw thread direction on the fourth threaded rod 628. Each threaded rod comprises a threaded section in the middle and polished rod sections located on two sides of the threaded section, sliding long holes are formed in the four enclosing plates 510 of the mold frame 500, and the polished rod sections penetrate through the sliding long holes and can move horizontally in the sliding long holes.
The end of the light bar section extending from the sliding long hole is fixedly provided with a driving wheel 601, and two adjacent threaded bars extending from the same enclosing plate 510 are in transmission connection through a transmission belt 603, namely, a first threaded bar 622 and a third threaded bar 626 are in transmission connection through the transmission belt 603 arranged on the driving wheel 601, and a second threaded bar 624 and a fourth threaded bar are in transmission connection through the transmission belt 603 arranged on the driving wheel 601.
The mold frame 500 is provided with a tensioning assembly for tensioning the transmission belt 603, the tensioning assembly comprises a tensioning pressure spring 632, a guide shaft 634 and a tensioning roller 636, a guide groove 512 extending in the up-down direction is formed in the enclosing plate 510 of the mold frame 500, a fixed block 516 is fixed in the guide groove 512, a first end of the tensioning pressure spring 632 is fixed on the fixed block 516, a second end of the tensioning pressure spring 632 is fixedly connected with the guide shaft 634, the guide shaft 634 is slidably arranged in the guide groove 512 in the up-down direction, the tensioning roller 636 is rotatably arranged on the guide shaft 634, and the tensioning roller 636 is used for pressing the transmission belt 603 to tension the transmission belt 603.
First threaded rod 622 is threadably engaged with a threaded hole in first template 612, second threaded rod 624 is threadably engaged with a threaded hole in second template 614, third threaded rod 626 is threadably engaged with a threaded hole in third template 616, and fourth threaded rod 628 is threadably engaged with a threaded hole in fourth template 618. When four threaded rods rotate, the corresponding template can be driven to move on the threaded rods.
The lead screw adjusting assembly further comprises a gear transmission assembly, the first threaded rod 622 and the second threaded rod 624 are in transmission connection through the gear transmission assembly, and the first threaded rod 622 can rotate to drive the second threaded rod 624 to rotate.
The gear transmission assembly comprises a transmission gear ring 642, a transmission gear 644, a first bevel gear 646 and a second bevel gear 648, the transmission gear ring 642 is in one-way transmission connection with a polished rod section of the first threaded rod 622, specifically, a sunken groove is formed in the polished rod section of the first threaded rod 622, an elastic assembly is arranged in the sunken groove and comprises an elastic pressure spring and one-way teeth, the elastic pressure spring supports the one-way teeth along the radial direction of the polished rod section, the one-way teeth are provided with inclined guide surfaces and flat transmission surfaces, slots for the one-way teeth to insert are formed in the inner wall surface of the transmission gear ring 642, and when the first threaded rod 622 rotates clockwise, the flat transmission surfaces are in blocking fit with the inner wall surfaces of the slots, so that the first threaded rod 622 can actively drive the transmission gear ring 642 to rotate clockwise. When the transmission gear ring 642 actively rotates clockwise, the inclined guide surface is extruded by the inner wall surface of the slot due to the inclined guide surface of the one-way tooth, so that the elastic pressure spring is compressed, the one-way tooth retreats from the slot, and the transmission gear ring 642 cannot drive the first threaded rod 622 to rotate.
An L-shaped mounting seat 649 is arranged on the first threaded rod 622, specifically, a vertical section of the mounting seat 649 is fixedly connected with a polished rod section of the first threaded rod 622, a surrounding plate 510 of the mold frame 500 is provided with a sliding long groove 514 for guiding and sliding a horizontal section of the mounting seat 649, the sliding long groove 514 is parallel to the sliding long groove and is arranged at intervals along the vertical direction, a guide hole is arranged on the horizontal section of the mounting seat 649, a transmission gear 644 is fixedly connected with a first bevel gear 646, a guide rod 650 is fixed on the transmission gear 644, a first pressure spring 652 is sleeved on the guide rod 650, and the guide rod 650 is arranged in the guide hole in a penetrating and sliding mode along the axial direction.
It should be noted that, the outer peripheral surfaces of the engaging teeth on the first bevel gear 646 and the engaging teeth on the second bevel gear 648 are both arc-shaped surfaces, and due to the existence of the first pressure spring 652 and the second pressure spring 654, when the transmission of the first bevel gear 646 and the second bevel gear 648 is blocked, the second pressure spring 654 will be compressed, and a slip will occur when the transmission between the second bevel gear 648 and the first bevel gear 646.
In order to rotate the first threaded rod 622 and the second threaded rod 624 conveniently, a first rotating hand wheel 661 is fixedly arranged on the end face of the first threaded rod 622, a second rotating hand wheel 663 is fixedly arranged on the end face of the second threaded rod 624, and scales are arranged on the two rotating hand wheels.
The working process of the plastic plate forming die of the embodiment is as follows:
firstly, according to the size of the required plate, a forming press block 430 with a corresponding size is selected and fixed on the upper die holder. Then according to the size of the plate, the size of a square cavity surrounded by the template assembly is adjusted, and the specific adjusting process is as follows:
in an initial state, the square cavity is square and has the largest size, the first rotating hand wheel 661 is rotated clockwise to rotate the first threaded rod 622, the first threaded rod 622 and the third threaded rod 626 are connected by the transmission belt 603, so the third threaded rod 626 is also rotated synchronously, and the first mold plate 612 and the third mold plate 616 are close to each other because the thread directions of the first threaded rod 622 and the third threaded rod 626 are opposite.
Meanwhile, the first threaded rod 622 drives the transmission gear ring 642 to rotate through the one-way gear, the transmission gear ring 642 drives the transmission gear 644 to rotate, the transmission gear 644 drives the first bevel gear 646 to rotate, the first bevel gear 646 drives the second bevel gear 648 to rotate, the second bevel gear 648 drives the second threaded rod 624 to rotate, the second threaded rod 624 and the fourth threaded rod 628 are in transmission connection through the transmission belt 603, so that the fourth threaded rod 628 also synchronously rotates, and the second template 614 and the fourth template 618 are close to each other due to opposite screw directions of the second threaded rod 624 and the fourth threaded rod 628, so that the square cavity is continuously reduced, and the square cavity is always square in the reduction process.
In the process, the second template 614 and the fourth template 618 push the first template 612 and the third template 616 away from each other along the axial direction of the second threaded rod 624, so that the first threaded rod 622 and the third threaded rod 626 slide in the corresponding sliding long holes and move away from each other, the first template 612 and the third template 616 push the second template 614 and the fourth template 618 away from each other along the axial direction of the first threaded rod 622, so that the second threaded rod 624 and the fourth threaded rod 628 slide away from each other in the corresponding sliding long holes, and the driving belt 603 in contact with the tension wheel pushes the tension wheel upwards to adapt to the mutual away of the two adjacent threaded rods.
If the required plate is square, the first rotating handwheel 661 stops rotating when the square cavity is reduced to the target size.
If the required plate is rectangular, the square cavity is firstly reduced to a square with the side length equal to the length of the required plate, then the second rotating hand wheel 663 is rotated clockwise, the second threaded rod 624 rotates, meanwhile, the fourth threaded rod 628 rotates under the driving of the driving belt 603, and then the second template 614 and the fourth template 618 approach each other. In the process, the second bevel gear 648 drives the first bevel gear 646 to rotate counterclockwise, the first bevel gear 646 drives the transmission gear 644 to rotate counterclockwise, the transmission gear 644 rotates counterclockwise and drives the transmission gear ring 642 to rotate clockwise, but due to the existence of the one-way teeth, the transmission gear ring 642 cannot drive the first threaded rod 622 to rotate, the first threaded rod 622 and the third threaded rod 626 cannot rotate, and the first template 612 and the third template 616 cannot approach each other. Therefore, the square cavity surrounded by the four templates starts to become a rectangle, and when the target size is reached, the second rotating hand wheel 663 stops rotating.
The lower die holder is then moved upward, the support surface on the lower extrusion plate 320 contacts the lower bottom surface of the die plate assembly, the powder material is injected into the square cavity, the square cavity is heated to soften the powder material, the upper die holder is moved downward, the forming press 430 is inserted into the press through-hole 522 and extends into the square cavity, and the powder material is extruded to form the desired plate.
After the plate is formed, the lower die base moves downwards, the formed plate moves downwards along with the lower die base, and when the plate moves downwards to a position right opposite to the air outlet, the cooling fan 210 is started to rapidly cool the plate by using the air blown out from the air outlet.
If the shape of the square cavity required during the first time and the second time of use is rectangle or is square, then when the second time of use, only need according to the shape expansion of last time and shrink can, if need shrink square cavity, continue clockwise rotation first rotatory hand wheel 661, if need enlarge square cavity, anticlockwise rotation second rotatory hand wheel 663, the shape is more similar, and the adjustment volume of second time is littleer. The arrangement can enable the template adjusting mechanism to memorize the shape of the square cavity, and the more similar the shape of the square cavity required twice, the more convenient the adjustment.
If the square cavity required in the two-time use is different in shape, the square cavity can be completely reset, specifically, if the square cavity required in the first-time use is square, the second rotating hand wheel 663 is directly rotated anticlockwise, and the four templates synchronously move until reset. If the square cavity required for the first use is rectangular, the four templates move synchronously by rotating the second rotating hand wheel 663 anticlockwise, but because the square cavity is rectangular, the distance between the first template 612 and the third template 616 is larger than the distance between the second template 614 and the fourth template 618, so that the first template 612 and the third template 616 are reset firstly, and then when the second rotating hand wheel 663 is rotated anticlockwise continuously, the first template 612 and the third template 616 cannot move, because the outer peripheral surfaces of the meshing teeth of the first bevel gear 646 and the second bevel gear 648 are arc-shaped, and the first bevel gear 646 and the second bevel gear 648 respectively press the first compression spring 652 and the second compression spring 654, so that the first bevel gear 646 and the second bevel gear 648 can slide until the second template 614 and the fourth template 618 are reset.
In other embodiments, the first bevel gear and the second bevel gear are both conventional meshing teeth, in order to enable the second template and the fourth template to be reset normally, a horizontal pull rod is fixedly arranged on the second bevel gear, the horizontal pull rod extends out of the enclosing plate, when the second template and the fourth template need to be reset, the second bevel gear is pulled by the horizontal pull rod to compress the second pressure spring, the second bevel gear and the fourth bevel gear are disengaged, under the condition that the disengaged state is maintained, the second threaded rod is rotated anticlockwise to enable the second template and the fourth template to be reset, then the horizontal pull rod is loosened, and the second bevel gear is reset under the action of the second pressure spring.
In other embodiments, the transmission gear ring is connected with the polished rod section of the first threaded rod in a one-way transmission manner through a one-way bearing, so that the first threaded rod can actively drive the transmission gear ring to rotate clockwise, and the transmission gear ring cannot drive the first threaded rod to rotate clockwise when rotating clockwise.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (9)
1. A plastic sheet forming die, comprising:
the mould comprises a rack, wherein a mould frame is arranged on the rack;
the template adjusting mechanism comprises a template assembly and a screw rod adjusting assembly, the template assembly is arranged in the mold frame and can surround a square cavity, and the screw rod adjusting assembly can adjust the template assembly to change the size of the square cavity;
the lower die holder is arranged on the rack in a guiding and sliding manner and is provided with a lower extrusion surface, and the lower extrusion surface is used for being pressed against the lower bottom surface of the die plate assembly;
the upper die base is arranged on the rack in a guiding and sliding manner, and is provided with a forming pressing block which is matched with the square cavity;
the template assembly comprises four templates, the four templates are respectively a first template, a second template, a third template and a fourth template, the first template and the third template are arranged at intervals and are parallel to each other, the second template and the fourth template are arranged at intervals and are parallel to each other, two templates which are arbitrarily adjacent in the four templates are perpendicular to each other, the screw rod adjusting assembly comprises four screw rods, the four screw rods can translate along the direction perpendicular to the axes of the four screw rods, the four screw rods are respectively a first screw rod, a second screw rod, a third screw rod and a fourth screw rod, the first screw rod is in threaded fit with the first template, the second screw rod is in threaded fit with the second template, the third screw rod is in threaded fit with the third template, the fourth screw rod is in threaded fit with the fourth template, when the four screw rods rotate, the corresponding templates can be driven to move on the screw rods, the first screw rod is connected with the third screw rod through a transmission belt, the screw rotation directions of the first screw rod are opposite, the second screw rod is connected with the fourth screw rod through a transmission belt, the screw rod is connected with the fourth screw rod, and the screw rod is used for tensioning of a mold frame.
2. The plastic plate forming die as claimed in claim 1, wherein the gear transmission assembly comprises a transmission gear ring, a transmission gear, a first bevel gear and a second bevel gear, the transmission gear ring is sleeved on the first threaded rod, the first threaded rod is provided with a mounting seat, the transmission gear and the first bevel gear are fixedly connected and rotatably mounted on the mounting seat, the second bevel gear is arranged on the second threaded rod, the transmission gear ring is meshed with the transmission gear, and the first bevel gear is meshed with the second bevel gear.
3. The plastic plate forming die as claimed in claim 2, wherein the transmission gear ring is in one-way transmission connection with a first threaded rod, a guide rod is fixed on the transmission gear, a first pressure spring is sleeved on the guide rod, a guide hole is formed in the mounting seat, the guide rod is slidably inserted into the guide hole in a guiding manner, a second bevel gear is sleeved on the second threaded rod and is in rotation-stopping connection with the second threaded rod, the second bevel gear can axially slide on the second threaded rod, a limiting part is fixedly arranged on the second threaded rod, and a second pressure spring is arranged between the limiting part and the second bevel gear.
4. The plastic sheet forming die of claim 3, wherein the peripheral surfaces of the meshing teeth on the first bevel gear and the meshing teeth on the second bevel gear are both arc-shaped surfaces.
5. The plastic plate forming die as claimed in claim 4, wherein the tensioning assembly comprises a tensioning pressure spring, a guide shaft and a tensioning roller, a first end of the tensioning pressure spring is fixed on the die frame, a second end of the tensioning pressure spring is fixedly connected with the guide shaft, the guide shaft is slidably arranged on the die frame in an up-and-down direction, the tensioning roller is rotatably arranged on the guide shaft, and the tensioning roller is used for pressing against the transmission belt to tension the transmission belt.
6. A plastic panel forming die as claimed in any one of claims 1 to 5, wherein the die frame is a square frame surrounded by four side plates, the side plates are provided with a plurality of sliding long holes corresponding to the threaded rods one to one, and the threaded rods can translate in the sliding long holes.
7. A plastic sheet forming die as claimed in any one of claims 1 to 5, further comprising a cooling assembly disposed on the frame for cooling the formed sheet.
8. The plastic plate forming die as claimed in claim 1, wherein the cooling assembly comprises a cooling fan and a cooling pipeline, and the cooling pipeline is provided with an air outlet facing the lower die holder.
9. A plastics sheet moulding die according to any one of claims 1 to 5, wherein a first rotating hand wheel is fixed to the end of the first threaded rod and a second rotating hand wheel is fixed to the end of the second threaded rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211249779.1A CN115319990A (en) | 2022-10-12 | 2022-10-12 | Plastic plate forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211249779.1A CN115319990A (en) | 2022-10-12 | 2022-10-12 | Plastic plate forming die |
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| Publication Number | Publication Date |
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| CN115319990A true CN115319990A (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211249779.1A Pending CN115319990A (en) | 2022-10-12 | 2022-10-12 | Plastic plate forming die |
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| Country | Link |
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| CN (1) | CN115319990A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115923105A (en) * | 2023-02-21 | 2023-04-07 | 杭州方圆塑机股份有限公司 | Double-extrusion structure of plate machine |
| CN116141571A (en) * | 2023-04-19 | 2023-05-23 | 江苏旭耀光电技术有限公司 | Multi-specification lampshade injection molding equipment with deformable mold |
| CN116749496A (en) * | 2023-08-21 | 2023-09-15 | 成都市鸿侠科技有限责任公司 | Skin thermoplastic die with adjustable size and shape |
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| CN212692911U (en) * | 2020-04-16 | 2021-03-12 | 浙江宝祥工贸有限公司 | Adjustable measuring tool is used in mould processing |
| CN213382849U (en) * | 2020-09-03 | 2021-06-08 | 青岛众诺塑料挤出机械有限公司 | Plastic sheet production is with moulding type device of easily adjusting size |
| CN115157566A (en) * | 2022-07-25 | 2022-10-11 | 高莹 | Environment-friendly plastic injection mold convenient to adjust |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212692911U (en) * | 2020-04-16 | 2021-03-12 | 浙江宝祥工贸有限公司 | Adjustable measuring tool is used in mould processing |
| CN111590797A (en) * | 2020-06-16 | 2020-08-28 | 清远市合意氟塑电线有限公司 | Easily adjust and dismantle fluorine and mould board production mould |
| CN213382849U (en) * | 2020-09-03 | 2021-06-08 | 青岛众诺塑料挤出机械有限公司 | Plastic sheet production is with moulding type device of easily adjusting size |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115923105A (en) * | 2023-02-21 | 2023-04-07 | 杭州方圆塑机股份有限公司 | Double-extrusion structure of plate machine |
| CN116141571A (en) * | 2023-04-19 | 2023-05-23 | 江苏旭耀光电技术有限公司 | Multi-specification lampshade injection molding equipment with deformable mold |
| CN116749496A (en) * | 2023-08-21 | 2023-09-15 | 成都市鸿侠科技有限责任公司 | Skin thermoplastic die with adjustable size and shape |
| CN116749496B (en) * | 2023-08-21 | 2023-10-31 | 成都市鸿侠科技有限责任公司 | Skin thermoplastic die with adjustable size and shape |
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