CN112192811A - High-precision plastic injection mold with adjustable size of mold inner cavity - Google Patents
High-precision plastic injection mold with adjustable size of mold inner cavity Download PDFInfo
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- CN112192811A CN112192811A CN202011093302.XA CN202011093302A CN112192811A CN 112192811 A CN112192811 A CN 112192811A CN 202011093302 A CN202011093302 A CN 202011093302A CN 112192811 A CN112192811 A CN 112192811A
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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
- B29C45/2602—Mould construction elements
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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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
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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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7331—Heat transfer elements, e.g. heat pipes
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- Manufacturing & Machinery (AREA)
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a high-precision plastic injection mold with an adjustable size of an inner cavity of the mold, which aims at solving the problems that the prior mold cavity is inconvenient to adjust the front-back width and the left-right width in a bidirectional and integrated manner and has low cooling efficiency, and the invention provides the following scheme that the high-precision plastic injection mold comprises a mold box with an opening at the top part, supporting legs are fixedly connected with four corners at the bottom of the mold box, scale marks are arranged on the rear side and the left side at the top part of the mold box, a rectangular through hole is arranged on the inner wall at the rear side of the mold box, a first mold plate is movably contacted on the inner wall at the rear side of the mold box, the left side of the first mold plate extends out of the mold box, and a same second mold plate is in sliding contact between the inner walls at two sides of the mold box. Reach the effect of continuous stable carrying out the water-cooling to the bottom of die cavity, improve cooling efficiency, be favorable to the use.
Description
Technical Field
The invention relates to the technical field of high-precision plastic injection molds, in particular to a high-precision plastic injection mold with an adjustable size of a mold inner cavity.
Background
An injection mold is a tool for producing plastic products; the tool is also a tool for endowing a plastic product with a complete structure and accurate size, and particularly, the plastic which is melted by heating is injected into a mold cavity and is cooled and solidified to obtain a formed product.
Most of the existing high-precision plastic injection molds are fixed, although the size of the mold cavity can be adjusted, the size of the mold cavity can be adjusted in one direction, and the adjustment in two directions is difficult to achieve due to the mutual limitation of the two directions; for example, the granted bulletin No. CN208359320U is an injection mold capable of adjusting the size of a mold, and the mold cavity of the injection mold can only achieve size adjustment in one direction, such as achieving front-back width or left-right width, but not achieving both left-right and front-back width, which has two disadvantages, the adjustment range of 1 and one direction is limited, so that injection products with errors in the other direction need to be separately equipped with molds matched with the injection products, and the number of the injection products is large, thereby increasing the design and manufacturing cost of the molds; 2. after the injection molding is finished, the long cooling time is needed to finish the molding of the model, so that the model manufacturing efficiency is slow, the defect of low cooling efficiency exists, and the waiting time is long.
In order to solve the problems that the front-back width and the left-right width of a mold cavity are inconvenient to adjust in a bidirectional and integrated mode and the cooling efficiency is low, a high-precision plastic injection mold with an adjustable inner cavity is provided.
Disclosure of Invention
The invention provides a high-precision plastic injection mold with an adjustable size of an inner cavity of the mold, which solves the problems that the front width and the back width and the left width and the right width of a mold cavity are inconvenient to be adjusted in a bidirectional and integrated mode, and the cooling efficiency is low.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-precision plastic injection mold with an adjustable size of an inner cavity of the mold comprises a mold box with an opening at the top, supporting legs are fixedly connected to four corners of the bottom of the mold box, scale marks are arranged on the rear side and the left side of the top of the mold box, a rectangular perforation is formed in the inner wall of the rear side of the mold box, a first mold plate is movably contacted with the inner wall of the rear side of the mold box, the left side of the first mold plate extends out of the mold box, a same second mold plate is in sliding contact with the inner walls of the two sides of the mold box, two guide rods are fixedly connected with the front side of the second mold plate, the front ends of the guide rods extend to the front side of the mold box and are fixedly connected with an anti-falling block, a third mold plate is in sliding contact with the rear side of the second mold plate, the rear side of the third mold plate extends to the rear side of the mold box through the rectangular perforation and is fixedly connected with a, the die comprises a first die plate, a second die plate, a connecting seat, a movable rod, a second die plate, a third die plate, a die cavity, a first outer tube, a second inner tube, a second outer tube, a cooling mechanism and a die cavity matched with the die cavity.
Preferably, the front and rear width adjusting mechanism comprises an internal thread sleeve fixedly connected to the rear side of the second outer tube, a round tube is sleeved on the internal thread sleeve, the rear end of the round tube extends to the rear side of the mold box, the mold box is rotatably sleeved on the round tube, a first screw rod is sleeved in the round tube in a rotating manner, the internal thread sleeve is sleeved on the first screw rod in a threaded manner, the rear end of the first screw rod extends to the outside of the round tube and is fixedly connected with a first knob, the left and right width adjusting mechanism comprises a second knob and a first bevel gear which are fixedly sleeved on the round tube, the first bevel gear is positioned in the mold box, an L-shaped positioning rod is fixedly connected to the inner wall of the rear side of the mold box, a moving seat is sleeved on the L-shaped positioning rod in a sliding manner, a sliding sleeve is fixedly connected to the left side of the moving seat and is movably sleeved on the moving rod, the movable seat is sleeved on the second screw rod in a threaded manner, and the L-shaped positioning rod is rotatably sleeved on the second screw rod.
Preferably, the cooling mechanism comprises a water tank fixed at the bottoms of the four support legs, cooling water is filled in the water tank, the bottom of the die box is movably contacted with a mosquito-repellent incense type cooling coil pipe positioned below the die cavity, a water pump is fixedly connected to the bottom of the die box, a water inlet of the water pump is communicated and fixed with a flexible hose, one end of the flexible hose is communicated and fixed with the outer end of the mosquito-repellent incense type cooling coil pipe, a water suction pipe is communicated and fixed at the inner end of the mosquito-repellent incense type cooling coil pipe, the bottom end of the water suction pipe extends into the water tank and is fixedly connected with a filter screen cover, a condenser is fixedly installed at the left side of the water tank, a water inlet of the condenser is communicated and fixed with a water outlet of the water pump, a water outlet of the condenser extends into the water tank, a water inlet pipe and a water outlet pipe are communicated, and the bottom four corners of diaphragm all fixedly connected with montant, and in the bottom of montant extended to the water tank, the water tank sealed slip cover was established on four montants, fixedly connected with a plurality of compression springs that are in compression state between the bottom of diaphragm and the top of water tank.
Preferably, a first rectangular hole is formed in the inner wall of the left side of the mold box, the inner wall of the first rectangular hole is in sliding connection with the outer side of the first template, the top and the bottom of the second template are in sliding contact with the inner wall of the top and the inner wall of the bottom of the rectangular hole respectively, and the bottom of the first template, the bottom of the second template and the bottom of the third template are in close contact with the inner wall of the bottom of the mold box.
Preferably, two anti-abrasion balls are nested on the inner walls of the four sides of the sliding sleeve, the moving rod is located between the eight anti-abrasion balls, and the anti-abrasion balls are in rolling contact with the outer side of the moving rod.
Preferably, the right side of the moving seat is provided with a threaded hole and a second rectangular hole, the inner wall of the second rectangular hole is in sliding connection with the outer side of the L-shaped positioning rod, the threaded hole is in threaded connection with the second screw rod, a first round hole is formed in the inner wall of the right side of the L-shaped positioning rod, a first bearing is fixedly sleeved in the first round hole, and the inner ring of the first bearing is welded and sleeved with the outer side of the second screw rod.
Preferably, a second round hole is formed in the inner wall of the rear side of the die box, a second bearing is fixedly sleeved in the second round hole, an inner ring of the second bearing is sleeved with the outer side of the round pipe in a welding mode, a third bearing is fixedly sleeved in the round pipe, and the inner ring of the third bearing is sleeved with the outer side of the first screw in a welding mode.
Preferably, circular port and four square holes have been seted up on the top inner wall of water tank, and the outside bonding cladding that absorbs water the pipe has first rubber seal, and the outside of first rubber seal and the inner wall sliding connection of circular port, bonds the cladding on the montant and has second rubber seal, and the outside of second rubber seal and the inner wall sliding connection of the square hole that corresponds.
Preferably, the outer side of the first knob and the outer side of the second knob are both provided with a plurality of anti-slip stripes in an annular shape at equal intervals.
Preferably, two circular through holes are formed in the inner wall of the front side of the die box, and the inner wall of each circular through hole is in sliding connection with the outer side of the corresponding guide rod.
Compared with the prior art, the invention has the beneficial effects that:
1. through the matching of the second template, the third template, the guide rods, the connecting seat, the first outer tube, the first inner rod, the second outer tube, the moving rod, the internal thread sleeve, the first screw rod, the first knob and the anti-abrasion balls with the scale marks, the first knob is rotated in the forward direction to drive the first screw rod to rotate, the internal thread sleeve can be driven by the rotation of the first screw rod to move backwards, the internal thread sleeve drives the second inner rod and the second template to move rightwards through the second outer tube, the second template drives the two guide rods to respectively slide backwards in the corresponding round through holes, the second template and the second inner rod simultaneously drive the third template to move rightwards, the third template drives the first inner rod to slide in the first outer tube through the connecting seat, the connecting seat drives the moving rod to slide backwards between the eight anti-abrasion balls, at the moment, the distance between the second template and the first template is changed to match with, the front width and the rear width of the die cavity can be accurately adjusted;
2. the first template, the third template, the connecting seat, the first outer tube, the first inner rod, the second outer tube, the moving rod, the round tube, the first bevel gear, the L-shaped positioning rod, the moving seat, the sliding sleeve, the second bevel gear, the second screw rod, the second knob, the first rectangular hole are matched with the scale marks, the second knob is rotated in the forward direction to drive the round tube and the first bevel gear to rotate, the first bevel gear drives the second screw rod to rotate through the second bevel gear, the second screw rod can drive the moving seat to slide leftwards on the L-shaped positioning rod through rotation, the moving seat drives the moving rod to move leftwards through the sliding sleeve, the moving rod drives the connecting seat to move leftwards, the connecting seat drives the first outer tube to move leftwards through the first inner rod, the first outer tube drives the first template to slide leftwards in the first rectangular hole, the connecting seat drives the third template to synchronously move leftwards, the third template drives the second inner rod, at the moment, the distance between the third template and the inner wall of the left side of the mold box is changed, and the left and right width of the mold cavity can be accurately adjusted by matching with the scale marks;
3. the water tank, the mosquito-repellent incense type cooling coil, the water pump, the flexible hose, the compression spring, the transverse plate, the vertical rod and the water suction pipe are matched, when cooling is carried out after injection molding is finished in the die cavity, the water pump is started, a water inlet of the water pump sequentially passes through the flexible hose, the mosquito-repellent incense type cooling coil and the water suction pipe to suck cooling water, the cooling water is transmitted into the mosquito-repellent incense type cooling coil to absorb heat transferred to the lower bottom surface of the die box, the cooling water continuously flows and is discharged into the condenser through the water pump to be cooled, the cooled cooling water is discharged into the water tank again through a water outlet of the condenser to wait for recycling, cooling of cooling water circulating flow can be formed, the cooling efficiency is improved, the arrangement of the compression springs in a compression state can enable the mosquito-repellent incense type cooling coil to be always in stable contact with the bottom of the die box, and the, the stability of heat conduction cooling is improved.
The invention has reasonable design and convenient operation, is convenient for the bidirectional and accurate adjustment of the front and back width and the left and right width of the die cavity, reduces the equipment quantity, can form stable cooling water circulation, achieves the effect of continuously and stably carrying out water cooling on the bottom of the die cavity, improves the cooling efficiency and is beneficial to use.
Drawings
FIG. 1 is a schematic structural view of a high-precision plastic injection mold with an adjustable size of a mold cavity according to the present invention;
FIG. 2 is a schematic view of a portion of the cross-sectional structure of FIG. 1;
FIG. 3 is a schematic view of a top view of the inside of a mold box of a high-precision plastic injection mold with an adjustable size of the mold cavity according to the present invention;
FIG. 4 is a schematic cross-sectional view of FIG. 3;
FIG. 5 is an enlarged view of part A of FIG. 4;
FIG. 6 is a schematic top view of a mosquito coil for a high precision plastic injection mold with adjustable mold cavity size according to the present invention.
In the figure: 100 die cavities, 1 die box, 2 first die plate, 3 second die plate, 4 rectangular through holes, 5 third die plate, 6 guide rods, 7 connecting seats, 8 first outer tubes, 9 first inner rods, 10 second inner rods, 11 second outer tubes, 12 moving rods, 13 internal thread sleeves, 14 round tubes, 15 first screw rods, 16 first knobs, 17 first bevel gears, 18L-shaped positioning rods, 19 moving seats, 20 sliding sleeves, 21 anti-abrasion balls, 22 second bevel gears, 23 second screw rods, 24 second knobs, 25 supporting legs, 26 water tanks, 27 mosquito-repellent incense type cooling coils, 28 water pumps, 29 water suction tubes, 30 filter screen covers, 31 condensers, 32 water inlet tubes, 33 water outlet tubes, 34 first rectangular holes, 35 second rectangular holes, 36 scale lines, 37 anti-falling blocks, 38 second bearings, 39 control valves, 40 vertical rods, 41 compression springs, 42 transverse plates and 43 telescopic hoses.
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.
Referring to fig. 1-6, a high-precision plastic injection mold with an adjustable size of a mold inner cavity comprises a mold box 1 with an opening at the top, supporting legs 25 are fixedly connected to four corners of the bottom of the mold box 1, scale marks 36 are arranged on the rear side and the left side of the top of the mold box 1, a rectangular through hole 4 is formed in the inner wall of the rear side of the mold box 1, a first mold plate 2 is movably contacted with the inner wall of the rear side of the mold box 1, the left side of the first mold plate 2 extends out of the mold box 1, a same second mold plate 3 is slidably contacted between the inner walls of two sides of the mold box 1, two guide rods 6 are fixedly connected to the front side of the second mold plate 3, the front ends of the guide rods 6 extend to the front of the mold box 1 and are fixedly connected with an anti-falling block 37, a third mold plate 5 is slidably contacted with the rear side of the second mold plate 3, and the rear side of the third mold plate 5 extends to the rear of the mold box, the left side of the third template 5 is in sliding contact with the right side of the first template 2, a mold cavity 100 is formed among the front side of the first template 2, the rear side of the second template 3, the left side of the third template 5 and the inner wall of the left side of the mold box 1, the rear side of the first template 2 is fixedly connected with a first outer tube 8, the rear end of the first outer tube 8 penetrates through the rectangular through hole 4 and extends to the rear side of the mold box 1, the front side of the connecting seat 7 is fixedly connected with a first inner rod 9, the first outer tube 8 is slidably sleeved on the first inner rod 9, the right side of the third template 5 is fixedly connected with a second inner rod 10, the rear side of the second template 3 is fixedly connected with a second outer tube 11, the second outer tube 11 is slidably sleeved on the second inner rod 10, a moving rod 12 is fixedly connected between the rear side of the second inner rod 10 and the front side of the connecting seat 7, the mold box 1 is provided with a front-back width adjusting, the bottom of mould box 1 is provided with the cooling body with die cavity 100 matched with, this embodiment reasonable in design, and convenient operation is convenient for to the accurate adjustment of the two-way an organic whole of width around and about die cavity 100, reduces and is equipped with quantity, can form stable cooling water circulation, reaches the effect that carries out the water-cooling to the bottom of die cavity 100 that lasts stable, improves cooling efficiency, is favorable to the use.
In this embodiment, the front-rear width adjusting mechanism includes an internal thread sleeve 13 fixedly connected to the rear side of the second outer tube 11, a circular tube 14 is sleeved on the internal thread sleeve 13, the rear end of the circular tube 14 extends to the rear side of the mold box 1, the mold box 1 is rotatably sleeved on the circular tube 14, a first screw 15 is rotatably sleeved in the circular tube 14, the internal thread sleeve 13 is threadedly sleeved on the first screw 15, the rear end of the first screw 15 extends to the outside of the circular tube 14 and is fixedly connected with a first knob 16, the left-right width adjusting mechanism includes a second knob 24 and a first bevel gear 17 fixedly sleeved on the circular tube 14, the first bevel gear 17 is located in the mold box 1, an L-shaped positioning rod 18 is fixedly connected to the inner wall of the rear side of the mold box 1, a movable seat 19 is slidably sleeved on the L-shaped positioning rod 18, a sliding sleeve 20 is fixedly connected to the left side of the movable, a second bevel gear 22 is meshed with the left side of the first bevel gear 17, a second screw 23 is fixedly connected with the left side of the second bevel gear 22, a moving seat 19 is sleeved on the second screw 23 in a threaded manner, an L-shaped positioning rod 18 is rotatably sleeved on the second screw 23, a cooling mechanism comprises a water tank 26 fixed at the bottoms of four supporting legs 25, cooling water is filled in the water tank 26, the bottom of a die box 1 is movably contacted with a mosquito-repellent incense type cooling coil 27 positioned below a die cavity 100, a water pump 28 is fixedly connected with the bottom of the die box 1, a water inlet of the water pump 28 is communicated and fixed with a flexible hose 43, one end of the flexible hose 43 is communicated and fixed with the outer end of the mosquito-repellent incense type cooling coil 27, a water suction pipe 29 is communicated and fixed at the inner end of the mosquito-repellent incense type cooling coil 27, a filter screen cover 30 is fixedly connected with the bottom end of the, the water inlet of the condenser 31 is communicated and fixed with the water outlet of the water pump 28, the water outlet of the condenser 31 extends into the water tank 26, the right side of the water tank 26 is communicated and fixed with a water inlet pipe 32 and a water outlet pipe 33, the right end of the water inlet pipe 32 and the right end of the water outlet pipe 33 are both fixedly connected with a control valve 39, the inner end of the mosquito-repellent incense type cooling coil 27 is fixedly sleeved with a transverse plate 42, the four corners of the bottom of the transverse plate 42 are both fixedly connected with vertical rods 40, the bottom ends of the vertical rods 40 extend into the water tank 26, the water tank 26 is hermetically and slidably sleeved on the four vertical rods 40, a plurality of compression springs 41 in a compression state are fixedly connected between the bottom of the transverse plate 42 and the top of the water tank 26, the inner wall of the left side of the mold box 1 is provided with a first rectangular hole 34, the inner wall of the first rectangular hole 34 is slidably connected, the bottom of the first template 2, the bottom of the second template 3 and the bottom of the third template 5 are all in close contact with the inner wall of the bottom of the mold box 1, two anti-abrasion balls 21 are nested on the inner walls of four sides of the sliding sleeve 20, the moving rod 12 is positioned between the eight anti-abrasion balls 21, the anti-abrasion balls 21 are in rolling contact with the outer side of the moving rod 12, the right side of the moving seat 19 is provided with a threaded hole and a second rectangular hole 35, the inner wall of the second rectangular hole 35 is in sliding connection with the outer side of the L-shaped positioning rod 18, the threaded hole is in threaded connection with the second screw 23, the inner wall of the right side of the L-shaped positioning rod 18 is provided with a first round hole, a first bearing is fixedly sleeved in the first round hole, the inner ring of the first bearing is welded and sleeved with the outer side of the second screw 23, the inner wall of the rear side of the mold box 1 is provided with a second round hole, a second bearing 38, the inner side of the circular tube 14 is fixedly sleeved with a third bearing, the inner ring of the third bearing is welded and sleeved with the outer side of the first screw 15, the inner wall of the top of the water tank 26 is provided with a circular hole and four square holes, the outer side of the water suction tube 29 is bonded and coated with a first sealing rubber sheet, the outer side of the first sealing rubber sheet is in sliding connection with the inner wall of the circular hole, the vertical rod 40 is bonded and coated with a second sealing rubber sheet, the outer side of the second sealing rubber sheet is in sliding connection with the inner wall of the corresponding square hole, the outer side of the first knob 16 and the outer side of the second knob 24 are both provided with a plurality of anti-slip stripes in an annular and equidistant manner, the inner wall of the front side of the mold box 1 is provided with two circular through holes, and the inner wall of the circular through holes is in sliding connection with the outer sides of the corresponding guide rods 6, the embodiment is reasonable in design and convenient, can form stable cooling water circulation, reach the effect that the continuous stable carries out the water-cooling to the bottom of matched mould chamber 100, improve cooling efficiency, be favorable to the use.
In this embodiment, when the front and back width of the mold cavity 100 is adjusted, the first knob 16 is rotated in the forward direction, the first knob 16 drives the first screw 15 to rotate, the first screw 15 rotates to drive the internal thread bushing 13 to move backward, the internal thread bushing 13 drives the second inner rod 10 and the second mold plate 3 to move rightward through the second outer tube 11, the second mold plate 3 drives the two guide rods 6 to slide backward in the corresponding circular through holes, at this time, the second mold plate 3 and the second inner rod 10 simultaneously drive the third mold plate 5 to slide backward against the right side of the first mold plate 2, the third mold plate 5 drives the connecting seat 7 to move backward, the connecting seat 7 drives the first inner rod 9 to slide in the first outer tube 8, and at the same time, the connecting seat 7 drives the moving rod 12 to slide backward between the eight anti-wear balls 21, as the second mold plate 3 moves backward, at this time, the distance between the second mold plate 3 and the first mold plate 2 changes, the scale marks 36 arranged on the left side of the top of the die box 1 are matched, so that the front and back width of the die cavity 100 can be accurately adjusted;
when the left and right width of the die cavity 100 is adjusted, the second knob 24 is rotated in the forward direction to drive the circular tube 14 to rotate, the circular tube 14 drives the first bevel gear 17 to rotate, the first bevel gear 17 drives the second screw 23 to rotate through the second bevel gear 22 engaged with the first bevel gear, under the action of the threaded hole formed on the moving seat 19, the second screw 23 rotates to drive the moving seat 19 to slide leftwards on the L-shaped positioning rod 18, the moving seat 19 drives the moving rod 12 to move leftwards through the sliding sleeve 20, the moving rod 12 drives the connecting seat 7 to move leftwards, the connecting seat 7 drives the first outer tube 8 to move leftwards through the first inner rod 9, the first outer tube 8 drives the first die plate 2 to slide leftwards in the first rectangular hole 34, meanwhile, the connecting seat 7 drives the third die plate 5 to move leftwards synchronously, the third die plate 5 drives the second inner rod 10 to slide leftwards in the second outer tube 11, and moves leftwards along with the third die plate, at the moment, the distance between the third template 5 and the inner wall of the left side of the mold box 1 is changed, the scale mark 36 arranged at the rear side of the top of the mold box 1 is matched, so that the left and right width of the mold cavity 100 can be accurately adjusted, and the front and rear width adjustment is matched, so that the front and rear width and the left and right width of the mold cavity 100 are integrally adjusted, and the front and rear width and the left and right width of the mold cavity 100 are consistent with the front and rear width and the left and right width of a model to be manufactured;
when the mold cavity 100 is cooled after injection, the water pump 28 is started, the water inlet of the water pump 28 sucks the mosquito-repellent incense type cooling coil 27 through the telescopic hose 43, under the suction force, the inner ring of the mosquito-repellent incense type cooling coil 27 sucks the cooling water in the water tank 26 through the water suction pipe 29, so that the cooling water is transmitted into the mosquito-repellent incense type cooling coil 27, the cooling water absorbs the heat transferred to the bottom surface of the mold box 1 through the mosquito-repellent incense type cooling coil 27, the cooling water continuously flows, enters the water pump 28 through the mosquito-repellent incense type cooling coil 27, and is discharged into the condenser 31 through the water pump 28 for cooling, the cooled cooling water is discharged into the water tank 26 again through the water outlet of the condenser 31 for recirculation, the cooling water can flow circularly for cooling, the cooling efficiency is improved, the arrangement of the plurality of compression springs 41 in the compression state can have an upward tightening elastic force on the transverse plate 41, thereby reach and have an ascending elasticity that tightens to mosquito-repellent incense type cooling coil 27, reach the bottom that makes mosquito-repellent incense type cooling coil 27 and mould box 1 and can stabilize the contact all the time, avoid causing mosquito-repellent incense type cooling coil 27 and break away from the phenomenon that produces the gap because of factors such as vibrations, improve the stability of contact heat conduction cooling.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A high-precision plastic injection mold with an adjustable size of an inner cavity of the mold comprises a mold box (1) with an opening at the top, wherein supporting legs (25) are fixedly connected to four corners of the bottom of the mold box (1), and is characterized in that scale marks (36) are arranged on the rear side and the left side of the top of the mold box (1), rectangular through holes (4) are formed in the inner wall of the rear side of the mold box (1), a first mold plate (2) is movably contacted with the inner wall of the rear side of the mold box (1), the left side of the first mold plate (2) extends out of the mold box (1), a same second mold plate (3) is slidably contacted with the inner walls of two sides of the mold box (1), two guide rods (6) are fixedly connected to the front side of the second mold plate (3), and the front ends of the guide rods (6) extend to the front of the mold box (1) and are fixedly connected with anti-falling blocks (, the rear side sliding contact of second template (3) has third template (5), and the rear side of third template (5) runs through rectangle perforation (4) and extends to the rear of mould box (1) and fixedly connected with connecting seat (7), the left side of third template (5) and the right side sliding contact of first template (2), the front side of first template (2), the rear side of second template (3), form die cavity (100) between the left side of third template (5) and the left side inner wall of mould box (1), the rear side fixedly connected with first outer tube (8) of first template (2), the rear end of first outer tube (8) runs through rectangle perforation (4) and extends to the rear of mould box (1), the front side fixedly connected with first interior pole (9) of connecting seat (7), first outer tube (8) sliding sleeve is established on first interior pole (9), the right side fixedly connected with second interior pole (10) of third template (5), the rear side fixedly connected with second outer tube (11) of second template (3), and second outer tube (11) slip cover establish on pole (10) in the second, fixedly connected with carriage release lever (12) between the rear side of pole (10) in the second and the front side of connecting seat (7), be provided with on mould box (1) with die cavity (100) matched with around width adjustment mechanism with control width adjustment mechanism, the bottom of mould box (1) is provided with the cooling body with die cavity (100) matched with.
2. The high-precision plastic injection mold with the adjustable size of the inner cavity of the mold as claimed in claim 1, wherein the front and rear width adjusting mechanism comprises an internally threaded sleeve (13) fixedly connected to the rear side of the second outer tube (11), the internally threaded sleeve (13) is sleeved with a round tube (14), the rear end of the round tube (14) extends to the rear side of the mold box (1), the mold box (1) is rotatably sleeved on the round tube (14), a first screw (15) is rotatably sleeved in the round tube (14), the internally threaded sleeve (13) is threadedly sleeved on the first screw (15), the rear end of the first screw (15) extends to the outside of the round tube (14) and is fixedly connected with a first knob (16), the left and right width adjusting mechanism comprises a second knob (24) and a first bevel gear (17) fixedly sleeved on the round tube (14), and the first bevel gear (17) is located in the mold box (1), the die box is characterized in that an L-shaped positioning rod (18) is fixedly connected to the inner wall of the rear side of the die box (1), a moving seat (19) is sleeved on the L-shaped positioning rod (18) in a sliding mode, a sliding sleeve (20) is fixedly connected to the left side of the moving seat (19), the sliding sleeve (20) is movably sleeved on the moving rod (12), a second bevel gear (22) is meshed to the left side of the first bevel gear (17), a second screw rod (23) is fixedly connected to the left side of the second bevel gear (22), the moving seat (19) is sleeved on the second screw rod (23) in a threaded mode, and the L-shaped positioning rod (18) is rotatably sleeved on the second screw rod (23.
3. The high-precision plastic injection mold with the adjustable size of the inner cavity of the mold as claimed in claim 1, wherein the cooling mechanism comprises a water tank (26) fixed at the bottom of the four legs (25), the water tank (26) is filled with cooling water, the bottom of the mold box (1) is movably contacted with a mosquito-repellent incense type cooling coil (27) positioned below the mold cavity (100), the bottom of the mold box (1) is fixedly connected with a water pump (28), a water inlet of the water pump (28) is communicated and fixed with a flexible hose (43), one end of the flexible hose (43) is communicated and fixed with the outer end of the mosquito-repellent incense type cooling coil (27), the inner end of the mosquito-repellent incense type cooling coil (27) is communicated and fixed with a water suction pipe (29), the bottom end of the water suction pipe (29) extends into the water tank (26) and is fixedly connected with a filter screen cover (30), the left side of the water tank, the water inlet of condenser (31) and the delivery port intercommunication of water pump (28) are fixed, and the delivery port of condenser (31) extends to in water tank (26), the right side intercommunication of water tank (26) is fixed with inlet tube (32) and drain pipe (33), the equal fixedly connected with control valve (39) of right-hand member of inlet tube (32) and the right-hand member of drain pipe (33), fixed cover is equipped with diaphragm (42) on the inner of mosquito-repellent incense type cooling coil (27), and the equal fixedly connected with montant (40) in bottom four corners of diaphragm (42), and in the bottom of montant (40) extends to water tank (26), the sealed slip cover of water tank (26) is established on four montants (40), a plurality of compression spring (41) that are in compression state of fixedly connected with between the bottom of diaphragm (42) and the top of water tank (26).
4. The high-precision plastic injection mold with the adjustable size of the mold inner cavity is characterized in that a first rectangular hole (34) is formed in the inner wall of the left side of the mold box (1), the inner wall of the first rectangular hole (34) is in sliding connection with the outer side of the first mold plate (2), the top and the bottom of the second mold plate (3) are in sliding contact with the inner wall of the top and the inner wall of the bottom of the rectangular through hole (4) respectively, and the bottom of the first mold plate (2), the bottom of the second mold plate (3) and the bottom of the third mold plate (5) are in close contact with the inner wall of the bottom of the mold box (1).
5. The high-precision plastic injection mold with the adjustable size of the mold cavity as claimed in claim 2, wherein two wear-resistant balls (21) are nested on the four inner walls of the sliding sleeve (20), the moving rod (12) is located between eight wear-resistant balls (21), and the wear-resistant balls (21) are in rolling contact with the outer side of the moving rod (12).
6. The high-precision plastic injection mold with the adjustable size of the inner cavity of the mold as claimed in claim 2, wherein the right side of the movable seat (19) is provided with a threaded hole and a second rectangular hole (35), the inner wall of the second rectangular hole (35) is slidably connected with the outer side of the L-shaped positioning rod (18), the threaded hole is in threaded connection with the second screw (23), the inner wall of the right side of the L-shaped positioning rod (18) is provided with a first round hole, a first bearing is fixedly sleeved in the first round hole, and the inner ring of the first bearing is welded and sleeved with the outer side of the second screw (23).
7. The high-precision plastic injection mold with the adjustable size of the mold cavity as claimed in claim 2, wherein a second circular hole is formed on the inner wall of the rear side of the mold box (1), a second bearing (38) is fixedly sleeved in the second circular hole, the inner ring of the second bearing (38) is welded and sleeved with the outer side of the circular tube (14), a third bearing is fixedly sleeved in the circular tube (14), and the inner ring of the third bearing is welded and sleeved with the outer side of the first screw (15).
8. The high-precision plastic injection mold with the adjustable size of the inner cavity of the mold as claimed in claim 3, wherein a circular hole and four square holes are formed on the inner wall of the top of the water tank (26), the outer side of the water suction pipe (29) is bonded and coated with a first sealing rubber, the outer side of the first sealing rubber is slidably connected with the inner wall of the circular hole, the vertical rod (40) is bonded and coated with a second sealing rubber, and the outer side of the second sealing rubber is slidably connected with the inner wall of the corresponding square hole.
9. The high-precision plastic injection mold with the adjustable size of the mold inner cavity as claimed in claim 2, wherein the outer side of the first knob (16) and the outer side of the second knob (24) are both provided with a plurality of anti-slip stripes in an annular shape at equal intervals.
10. The high-precision plastic injection mold with the adjustable size of the mold inner cavity of claim 1, wherein two circular through holes are formed on the inner wall of the front side of the mold box (1), and the inner wall of each circular through hole is slidably connected with the outer side of the corresponding guide rod (6).
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| CN202011093302.XA CN112192811B (en) | 2020-10-13 | 2020-10-13 | High-precision plastic injection mold with adjustable size of mold inner cavity |
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| CN202011093302.XA CN112192811B (en) | 2020-10-13 | 2020-10-13 | High-precision plastic injection mold with adjustable size of mold inner cavity |
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| CN112192811B CN112192811B (en) | 2021-06-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113650211A (en) * | 2021-07-29 | 2021-11-16 | 刁先民 | Radiotherapy compensation film preparation mould |
| CN115157566A (en) * | 2022-07-25 | 2022-10-11 | 高莹 | Environment-friendly plastic injection mold convenient to adjust |
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| CN112192811B (en) | 2021-06-08 |
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