Disclosure of Invention
The invention mainly aims to provide an injection molding device for producing rubber double-color shoes, which can effectively solve the problems that the injection molding device does not have an automatic demolding function, is particularly inconvenient in the demolding process, can only mold products with the same color, cannot be used for products with multiple layers overlapped, and causes the reduction of the application range.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The utility model provides an injection molding device for rubber bicolor shoes production, includes the mounting bracket, the direction slide has been placed on the support body right part of mounting bracket, mounting bracket upper end left side middle part fixedly connected with support frame, support frame upper end fixedly connected with pneumatic cylinder, mounting bracket upper end middle part slip is equipped with the movable mould, the fixed shell of mounting bracket upper end right part fixedly connected with, fixed shell left end middle part fixedly connected with cover half, the equal fixedly connected with guide bar in fixed shell left end four corners is two, four the guide bar external surface all with movable mould sliding connection, mounting bracket upper end front side right part fixedly connected with adjusting structure, movable mould front side middle part fixedly connected with actuating mechanism.
Preferably, symmetry fixedly connected with mould two around the cover half left end, the vertical partial middle part sliding connection of inner chamber of cover half has trapezoidal piece, trapezoidal piece left end runs through the cover half and extends to right part and with cover half sliding connection, the vertical partial middle part of cover half internal surface is the symmetry slip around and is equipped with the wedge, two the one end that the wedge kept away from each other all is fixed with the guide arm, two the one side that the guide arm surface kept away from each other all slides there is the bottom plate, two the bottom plate all with cover half fixed connection, two mounting groove two have all been seted up to one side that the bottom plate is close to each other, just two inner chamber all slides there is the sealing piece with homonymy guide arm fixed connection, two common fixedly connected with spring one between guide arm and the homonymy bottom plate the bottom plate right-hand member all is equipped with the inlet pipe.
Preferably, the right part of the upper end of the supporting frame is fixedly connected with a first ejector rod in a front-back symmetrical mode, and the right ends of the two first ejector rods are fixedly connected with a first ejector ring together.
Preferably, the movable mould comprises a first movable block sliding on the upper end of the mounting frame, the right end of the first movable block is rotationally connected with a rotating block, the outer surface of the rotating block is fixedly connected with an outer gear ring, the right end of the rotating block is fixedly connected with two moulds I matched with the moulds II on the same side, the left end of the first movable block and the left end of the rotating block are symmetrically provided with a first mounting groove communicated with the right end of the first movable block, the inner cavities of the first mounting groove are jointly provided with a pushing mechanism, and the inner cavities of the first mounting groove are respectively provided with a discharging mechanism.
Preferably, the pushing mechanism comprises two jacking blocks respectively sliding in an inner cavity of the first installation groove at the same side, the left ends of the two jacking blocks are fixedly connected with a second jacking rod, and the left ends of the two jacking rods are jointly fixed with a second jacking ring matched with the first jacking ring.
Preferably, the second ejector rod at the front part has a length smaller than that of the second ejector rod at the rear part.
Preferably, the two blanking mechanisms comprise two moving blocks II which are respectively fixed in two inner cavities of the right mounting groove I, the two right ends of the two moving blocks II are respectively fixedly connected with a guide rod I, the two outer surfaces of the two guide rods I are respectively and slidably connected with a fixed block which is respectively fixed in the inner cavities of the two mounting grooves I, and springs II which are sleeved on the outer surfaces of the guide rods I are fixedly connected between the two opposite surfaces of the fixed block and the moving block on the same side.
Preferably, the driving mechanism comprises two first mounting plates fixed in the middle of the front end of the moving block, one side, close to each other, of each first mounting plate is connected with a first rotating rod in a rotating mode, two ends of the first rotating rod penetrate through the two first mounting plates respectively and extend to the outside, two bevel gears meshed with each other are fixedly connected to the left end of the first rotating rod, the front end of each bevel gear is fixedly connected with one friction wheel through a connecting shaft, the first friction wheel is rotationally connected with the corresponding mounting plate, an adjusting part is fixedly arranged at the upper end of the corresponding mounting plate, a plane sheave mechanism is fixedly connected to the right end of the corresponding mounting plate, the right end of the first rotating rod is fixedly connected with the input end of the corresponding plane sheave mechanism, a spur gear is fixedly connected to the output end of the corresponding plane sheave mechanism, and the outer surface of the spur gear is meshed with the outer surface of the outer gear.
Preferably, the adjusting part comprises a vertical plate fixedly installed at the upper end of the mounting plate, the upper end of the vertical plate is rotationally provided with a second rotating rod, the front end of the second rotating rod is fixedly provided with a driving plate, the upper end of the vertical plate is fixedly connected with an arc plate, a third spring is fixedly connected between the upper part of the outer surface of the arc plate and the outer surface of the driving plate together, one end, far away from the second rotating rod, of the driving plate is provided with a ratchet mechanism, and one end, far away from the driving plate, of the ratchet mechanism is fixedly provided with a second friction wheel.
Preferably, the adjusting structure comprises a fixing frame for supporting, the top of the fixing frame is rotatably provided with a special-shaped plate attached to the outer surface of the friction wheel, and the lower part of the right end of the special-shaped plate is fixedly provided with a counterweight;
the left part of the special-shaped plate is of an arc-shaped structure, and the right part of the special-shaped plate is of a horizontal structure.
Compared with the prior art, the invention has the following beneficial effects:
1. in the invention, in the process of moving and opening the die, the first moving block can push the second moving block, the top block and the like to move towards the inner cavity of the first mounting groove through the contact of the first top ring and the second top ring, the finished product piece positioned in the inner cavity of the first rear die is ejected through the operation of the ejection block positioned at the rear part driving the same side blanking mechanism, the automatic demolding and blanking is completed, and the stability of the die and the like can be ensured under the action of the plane grooved pulley mechanism in the process of ejecting and pushing out the formed piece.
2. According to the invention, in the process of moving and opening the die, the first die can be rotated 180 degrees under the mutual matching between the first friction wheel and the special-shaped plate, and meanwhile, the first die can be ensured not to change in position in the rightward moving process under the mutual matching between the driving plate and the special-shaped plate, so that the first die can be always ensured to rotate towards one direction in the injection molding process, and not to deviate, and double-shot injection molding is completed.
3. The demolding of the finished product and the rotation of the mold by 180 degrees all use the power source provided by the hydraulic cylinder, so that the utilization rate of energy sources is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of another view of the overall structure of the present invention;
FIG. 3 is an enlarged schematic view of FIG. 2A in accordance with the present invention;
FIG. 4 is a partial schematic view of a driving mechanism according to the present invention;
FIG. 5 is a schematic view of a driving mechanism according to another embodiment of the present invention;
FIG. 6 is a schematic diagram of a detailed structure of a fixed mold according to the present invention;
FIG. 7 is a schematic view of the structure of FIG. 6B according to the present invention;
FIG. 8 is a schematic cross-sectional view of a movable mold part structure according to the present invention;
FIG. 9 is an enlarged schematic view of FIG. 5C in accordance with the present invention;
fig. 10 is a partial plan view of the present invention.
In the figure, 1, a mounting rack; 2, a supporting frame, 21, a first ejector rod, 22, a first ejector ring, 3, a hydraulic cylinder, 4, a movable mold, 41, a first moving block, 42, a rotating block, 43, an outer gear ring, 44, a first mold, 45, a first mounting groove, 46, a blanking mechanism, 461, a second moving block, 462, a first guide rod, 463, a second spring, 464, a fixed block, 47, a pushing mechanism, 471, an ejector block, 472, a second ejector rod, 473, a second ejector ring, 5, a second guide rod, 6, a fixed housing, 7, a guide slideway, 8, an adjusting structure, 81, a fixed frame, 82, a special-shaped plate, 83, a counterweight, 9, a driving mechanism, 91, a first mounting plate, 92, a first rotating rod, 93, a conical gear, 95, a friction wheel, 96, an adjusting part, 961, a vertical plate, 962, a second rotating rod, 963, an arc plate, 964, a third spring, 965, a driving plate, 966, a ratchet mechanism, 967, a friction wheel, 97, a plane sheave mechanism, 98, a straight gear, 10, a fixed mold, 101, a trapezoid block, 103, 102, a bottom plate, 104, a second guide rod, a wedge-shaped block, 109, a first mold, a second guide plate, a guide plate 107.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in fig. 1-2, an injection molding device for rubber double-colored shoe production comprises a mounting rack 1, guide slide 7 has been placed on the support body right part of mounting rack 1, 1 upper end left side middle part fixedly connected with support frame 2 of mounting rack, 2 upper end fixedly connected with pneumatic cylinder 3 of support frame, 1 upper end middle part sliding is equipped with movable mould 4 of mounting rack, 1 upper end right part fixedly connected with fixed casing 6 of mounting rack, fixed casing 6 left end middle part fixedly connected with cover half 10, the equal fixedly connected with guide bar two 5 in fixed casing 6 left end four equal fixedly connected with guide bar in four guide bar two 5 surface all with movable mould 4 sliding connection, 1 upper end front side right part fixedly connected with adjusting structure 8 of mounting rack, 4 front side middle part fixedly connected with actuating mechanism 9 of movable mould.
Before implementation, the fixed shell 6 is connected with external injection molding machines, and at least two injection molding machines are needed for injecting rubber raw materials with different colors respectively because the product is double-color matching;
In the picture of the scheme, only one injection molding opening is drawn for the sake of brevity;
In the implementation process of the embodiment, after the hydraulic cylinder 3 is started, the movable die 4 is pushed by the hydraulic cylinder 3 to move rightwards under the guidance of the guide rod II 5 and the mounting frame 1 until the movable die 4 and the fixed housing 6 are completely closed, then an injection molding machine positioned at the front part is started to inject molten raw materials into the fixed die 10 through the fixed housing 6, and then the molten raw materials are matched with the movable die 4, so that the primary injection molding process is completed;
Then, the hydraulic cylinder 3 moves backwards, under the combined action of the adjusting structure 8 and the driving mechanism 9, the hydraulic cylinder 3 moves forwards after the movable die 4 is driven to rotate 180 degrees, the movable die 4 is pushed to move rightwards again, the first die 44 after primary injection molding is moved to the rear part for secondary injection molding, and the first die 44 after primary injection molding is moved to the front side for primary injection molding;
In addition, after the second injection molding is completed, the hydraulic cylinder 3 moves backward to the leftmost part, and under the combined action of the ejector rod I21, the ejector ring I22 and the like, the injection molded double-color matching sole is pushed out, so that the demolding process is completed.
Specifically, in order to accomplish the above purpose of rotating the movable module 4, referring to fig. 3, 4 and 5, in this embodiment, the driving mechanism 9 includes two mounting plates 91 fixed in the middle of the front end of the moving block 41, one sides of the two mounting plates 91, which are close to each other, are rotatably connected with a first rotating rod 92, two ends of the first rotating rod 92 respectively extend to the outside through the two mounting plates 91, the left end of the first rotating rod 92 is fixedly connected with two conical gears 93 meshed with each other, the front end of the conical gear 93 located in the front is fixedly connected with a first friction wheel 95 through a connecting shaft, the first friction wheel 95 is rotatably connected with the first mounting plate 91, an adjusting portion 96 is fixed at the upper end of the first mounting plate 91, the right end of the first mounting plate 91 is fixedly connected with a plane sheave mechanism 97, the right end of the first rotating rod 92 is fixedly connected with the input end of the plane sheave mechanism 97, the output end of the plane sheave mechanism 97 is fixedly connected with a gear 98, and the outer surface of the spur gear 98 is meshed with the outer surface 43;
The plane sheave mechanism 97 is a conventional technical means in the prior art, and the principle is that the plane sheave mechanism is a clearance movement mechanism and consists of a driving member with a round pin and a driven sheave with a plurality of radial guide grooves;
In the scheme, a driving component with a round pin is used as an input end, and a driven sheave with a plurality of radial guide grooves is used as an output end;
When the driving member continuously rotates and the round pin starts to enter the radial guide groove of the grooved pulley, the inward concave locking arc on the grooved pulley starts to be released, and the grooved pulley is then stirred by the driving member. When the round pin thereafter begins to disengage from the radial guide slot of the sheave, the sheave stops rotating, and the male locking arc on the driving member begins to lock with the female locking arc on the sheave, typically a single pin outer sheave mechanism, the sheave rotates for a period shorter than dwell time, for indexing of the tool post and table in the automaton, and moving film in the film projector, etc., another type is a single pin inner sheave mechanism, the sheave rotates for a period longer than dwell time.
I.e., the planar geneva mechanism 97 can both transmit power and secure objects.
Further, referring to fig. 10, in this embodiment, the adjusting portion 96 includes a vertical plate 961 fixedly installed at an upper end of the first mounting plate 91, a second rotating rod 962 is rotatably provided at an upper end of the vertical plate 961, a driving plate 965 is fixedly provided at a front end of the second rotating rod 962, an arc plate 963 is fixedly connected to an upper end of the vertical plate 961, a third spring 964 is fixedly connected between an upper portion of an outer surface of the arc plate 963 and an outer surface of the driving plate 965, a ratchet mechanism 966 is provided at an end of the driving plate 965 away from the second rotating rod 962, and a second friction wheel 967 is fixedly provided at an end of the ratchet mechanism 966 away from the driving plate 965;
The ratchet mechanism 966 is also of conventional design in the prior art, and consists of a ratchet and a pawl, which can rotate unidirectionally relative to each other;
in this scheme, the friction wheel two 967 can rotate in the process of moving leftwards, but cannot rotate rightwards;
in addition, in the scheme, the outer surfaces of the friction wheel I95 and the friction wheel II 967 are made of high damping friction rubber;
Specifically, the adjusting structure 8 includes a fixing frame 81 for supporting, a shaped plate 82 attached to the outer surface of the second friction wheel 967 is rotatably arranged at the top of the fixing frame 81, and a counterweight 83 is fixedly arranged at the lower part of the right end of the shaped plate 82;
The left part of the special-shaped plate 82 is of an arc-shaped structure, and the right part of the special-shaped plate 82 is of a horizontal structure.
As can be seen from fig. 10, according to the special structure of the shaped plate 82, when the first friction wheel 95 is located at the left portion, the left portion of the shaped plate 82 is horizontal, and when the first friction wheel 95 is located at the right portion, the shaped plate 82 can rotate, and the arc portion of the shaped plate 82 will not contact the first friction wheel 95.
The length of the profiled plate 82 in the above description satisfies the length required for the outer ring gear 43 to rotate 180 °.
The above-mentioned middle driving mechanism 9 is divided into two stages in the operation process:
The first stage:
When the movable die 4 and the fixed die 10 are attached, the driving mechanism 9 is positioned at the right part of the upper end of the mounting frame 1, at the moment, the deformed plate 82 is higher left and lower right under the action of the gravity of the counterweight 83, and the driving plate 965 is in a natural state under the action of the spring three 964;
At this time, an injection molding process is started through an injection molding machine, after injection molding is completed, the movable mold 4 is pulled leftwards under the action of the hydraulic cylinder 3, at this time, the first friction wheel 95 is in contact with the surface of the special-shaped plate 82, the first friction wheel 95 moves and rotates under the action of the special-shaped plate 82, the bevel gear 93, the first rotating rod 92, the plane sheave mechanism 97 and the like are driven to operate, under the action of the plane sheave mechanism 97, the spur gear 98 starts to intermittently rotate, and the outer gear ring 43 is driven to drive the first mold 44 to synchronously rotate, so that the outer gear ring 43 rotates 180 degrees.
And a second stage:
When the movable die 4 moves rightwards again under the action of the hydraulic cylinder 3, the friction wheel II 967 stops rotating under the action of the ratchet mechanism 966, the friction wheel II 967 presses the left part of the special-shaped plate 82 downwards under the action of friction, the right part of the special-shaped plate 82 is tilted, and at the moment, the friction wheel I95 is separated from the special-shaped plate 82, so that the friction wheel I95 cannot rotate again in the leftward movement process, and the accuracy of the next bonding between the dies is ensured;
In the process that the friction wheel I95 and the like move rightwards, the friction wheel II 967, the driving plate 965 and the like rotate, and the friction wheel I95 moves to the right of the special-shaped plate 82 and continues to move rightwards, the friction wheel II 967 is separated from the special-shaped plate 82, and returns to the right of the friction wheel I95 again under the action of the spring III 964 for later use.
Example two
According to the embodiment, the water gap material can be removed in time in the mold opening process on the basis of the first embodiment.
Specifically, referring to fig. 6 and 7, in this solution, a second mold 109 is symmetrically and fixedly connected to the left end of the fixed mold 10, a trapezoidal block 101 is slidably connected to the middle of the vertical portion of the inner cavity of the fixed mold 10, the left end of the trapezoidal block 101 extends to the right through the fixed mold 10 and is slidably connected to the fixed mold 10, a wedge block 102 is symmetrically and longitudinally slidably arranged in the middle of the vertical portion of the inner surface of the fixed mold 10, two wedge blocks 102 are fixed with guide rods 105 at the ends far away from each other, a bottom plate 103 is slidably arranged at the sides far away from each other of the outer surfaces of the two guide rods 105, two bottom plates 103 are fixedly connected with the fixed mold 10, two mounting grooves 106 are formed at the sides close to each other of the bottom plates 103, sealing blocks 108 fixedly connected with the guide rods 105 at the same side are slidably connected to the inner cavity of the second mounting grooves 106, a first spring 107 is fixedly connected between the two guide rods 105 and the bottom plates 103 at the same side, and a feeding pipe 104 is arranged at the right end of the two bottom plates 103.
The sealing block 108 consists of a cutting ring and a sealing block, when the cutting ring is communicated with the feeding pipe 104, injection molding is started, and when the sealing block is positioned at the left part of the feeding pipe 104, the injection molding process is ended, wherein the cutting ring is used for cutting molten raw materials, and the sealing block is used for preventing the subsequent materials from continuously leaking out to cause waste;
Before implementation, the feeding pipe 104 is connected with the output end of the injection molding machine in the prior art, and a heating coil needs to be wound on the outer surface of the feeding pipe 104 for ensuring the temperature, so as to prevent the molten raw material from blocking the inner cavity of the feeding pipe 104.
In the implementation process, the rotating block 42 and the fixed mold 10 are attached, as a part of the trapezoid block 101 is arranged at the left part of the fixed mold 10, the rotating block 42 can push the trapezoid block 101 to move towards the inner cavity of the fixed mold 10 and extrude the two wedge blocks 102 outwards, meanwhile, the two guide rods 105 also move outwards, in the process, the two sealing blocks 108 synchronously move outwards and remove the sealing effect on the feeding pipe 104, so that molten raw materials can flow out, otherwise, under the action of the first springs 107, the technical characteristics can be restored to the initial position, and the inner cavity of the movable mold 4 can be cut off while the inner cavity of the movable mold 4 is sealed again through the sealing blocks 108, so that the subsequent processing efficiency is improved, and the raw material waste is reduced.
Example III
The present embodiment optimizes the movable mold 4 based on the second embodiment, so that the movable mold 4 can separate the injection-molded dual-color sole from the first mold 44 in the process of completing injection molding and separating from the second mold 109.
Specifically, in order to achieve the above objective, referring to fig. 8 and 9, in this solution, the movable mold 4 includes a first movable block 41 sliding on the upper end of the mounting frame 1, the right end of the first movable block 41 is rotationally connected with a rotating block 42, the outer surface of the rotating block 42 is fixedly connected with an outer gear ring 43, the right end of the rotating block 42 is fixedly connected with two first molds 44 matched with the second molds 109 on the same side, the left end of the first movable block 41 and the left end of the rotating block 42 are symmetrically provided with a first installation groove 45 communicating with the right end thereof, the inner cavities of the first installation grooves 45 on the left part are jointly provided with a pushing mechanism 47, and the inner cavities of the first installation grooves 45 on the right part are respectively provided with a discharging mechanism 46.
The outer gear ring 43 described above may be used in conjunction with the spur gear 98 during operation to adjust the front-to-back position and up-and-down position of the first die 44.
The pushing mechanism 47 comprises two pushing blocks 471 which slide in the inner cavity of the first installation groove 45 on the same side respectively, the left ends of the two pushing blocks 471 are fixedly connected with a second push rod 472, and the left ends of the two push rods 472 are jointly fixed with a second push ring 473 which is matched with the first push ring 22;
The right part of the upper end of the support frame 2 is fixedly connected with a first ejector rod 21 in a front-back symmetrical mode, and the right ends of the two first ejector rods 21 are fixedly connected with a first ejector ring 22 together.
The second push rod 472 at the front part has a length smaller than that of the second push rod 472 at the rear part.
The position of the first top ring 22 is fixed, when the first moving block 41 moves, the first top ring 22 contacts with the second top ring 473, so that the second top ring 473, the first top block 471 and the like can be pushed to move towards the inner cavity of the first mounting groove 45 by the first moving block 41, and the top block 471 positioned at the rear drives the same side blanking mechanism 46 to operate, so that a finished product piece positioned in the inner cavity of the first rear die 44 is ejected, and automatic blanking is completed;
In the process of pushing out the molded part, the stability of the first mold 44 and the like can be ensured under the action of the plane sheave mechanism 97.
Only the length of the second push rod 472 at the rear part can push the blanking mechanism 46 at the same side to run.
The two blanking mechanisms 46 respectively comprise two moving blocks 461 which are respectively fixed in the inner cavities of the first 45 right mounting grooves, the right ends of the two moving blocks 461 are respectively fixedly connected with a first guide rod 462, the outer surfaces of the two first guide rods 462 are respectively and slidably connected with a fixed block 464 which is respectively fixed in the inner cavities of the first 45 right mounting grooves, and springs two 463 sleeved on the outer surface of the first guide rod 462 are fixedly connected between the opposite surfaces of the fixed block 464 and the second moving block 461 on the same side.
The second spring 463 can pull the first guide rod 462 back to the initial position, and as can be seen from fig. 9, the end of the first guide rod 462 near the first mold 44 is adapted to the shape of the inner surface of the first mold 44.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.