CN211363350U

CN211363350U - Upper-connecting injection mold opening and closing unit

Info

Publication number: CN211363350U
Application number: CN201922444812.6U
Authority: CN
Inventors: 董建平; 赖金有
Original assignee: Xiamen Manyu Automation Technology Co ltd
Current assignee: Xiamen Manyu Automation Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-28
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a help injection mold unit that opens and shuts even relates to shoes production technical field, and its technical scheme main points are: including the connecting seat that is equipped with the die cavity, set up in die block elevating system of die cavity bottom, set up in the side forms of die cavity lateral wall mechanism that opens and shuts and set up in the shoe tree elevating system of die cavity top, die block elevating system is used for controlling the die block lift, the side forms mechanism that opens and shuts is used for controlling opening and shutting of side forms, shoe tree elevating system slides the lift seat on the connecting seat including going up and down, is fixed in the shoe tree mount pad on the lift seat and sets up the driving piece that is used for driving the lift seat to go up and down on the connecting seat, be equipped with on the lift seat and be used for controlling shoe tree mount pad pivoted rotary replacement mechanism, be provided with the. The utility model discloses automatic change the mould and open and shut to the quick replacement shoe tree of being convenient for need not manual operation, has the effect that improves production efficiency.

Description

Upper-connecting injection mold opening and closing unit

Technical Field

The utility model relates to a shoes are with moulding plastics technical field, more specifically say, it relates to a help injection mold unit that opens and shuts even.

Background

The injection molding machine for shoes has been published in the eighties of the last century, a technological method of extrusion injection is used at the beginning, and then an injection technological method is developed, in the past thirty years of development, the existing injection method has a mature technology, is convenient to operate and low in operation cost, so that a large number of middle and low-end shoes are formed by one-time continuous upper forming. The soles of injection molded shoes are generally made of plastic. The plastic injection moulding shoe is a production method in which the rubber material is directly injected into mould cavity from machine cylinder, and the fabric or leather vamp is bonded. The shoe upper and the sole are endowed with certain flexibility and elasticity by injection molding at certain temperature and pressure, and are fused and combined together.

Cooperate to go on helping to mould plastics to shoes usually among the prior art, go on to injection mold's the manual work of opening and shutting usually to also go on through manual when the shoe tree is changed, the operation process is comparatively loaded down with trivial details, and work efficiency is slow, consuming time power, the workman is tired easily under long-term repetitive operation, makes work efficiency slower, has influenced production efficiency.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a help injection mold unit that opens and shuts even has the effect that improves production efficiency.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a help injection mold unit that opens and shuts even, includes the connecting seat that is equipped with the die cavity, set up in die block elevating system of die cavity bottom, set up in the side forms of die cavity lateral wall mechanism that opens and shuts and set up in the shoe tree elevating system of die cavity top, die block elevating system is used for controlling the die block and goes up and down, side forms open and shut the mechanism and be used for controlling opening and shutting of side forms, shoe tree elevating system includes that the lift seat that goes up and down to slide on the connecting seat, be fixed in the shoe tree mount pad on the lift seat and set up the driving piece that is used for driving the lift seat to go up and down on the connecting seat, be equipped with on the lift seat and be used for controlling.

Further setting: the top and the bottom of shoe tree mount pad are provided with two installation positions that are used for installing the shoe tree respectively.

Further setting: rotatory change mechanism is including rotating the axis of rotation that sets up on the lift seat, being fixed in the epaxial driven gear of rotation, with driven gear meshing's rack and set up the promotion cylinder on the lift seat, set up the arrangement chamber that supplies axis of rotation, driven gear and rack to hold in the lift seat, the piston rod and the rack connection of promotion cylinder, rack lifting slide is in arranging the intracavity, the shoe tree mount pad is fixed in the axis of rotation.

Further setting: the push cylinder is installed at the top of the lifting seat, one end, far away from the push cylinder, of the rack is fixedly provided with a limiting block, and when the limiting block abuts against the groove wall of the placement cavity, the rotating shaft rotates 180 degrees.

Further setting: the toe cap pressing mechanism comprises a pressure head cylinder arranged on the lifting seat and a toe cap pressing block connected with a piston rod of the pressure head cylinder, and the toe cap pressing block is aligned to the toe cap position of the shoe tree.

Further setting: die block elevating system is including installing in the pneumatic driving piece of connecting seat bottom and the die block mount pad of being connected with pneumatic driving piece piston rod, the die block mount pad sets up to lieing in the die cavity.

Further setting: die block mount pad bottom is equipped with the sensor that is used for detecting die block mount pad lift stroke, the sensor is connected with the controller, the drive stroke of pneumatic driving piece is controlled by on the controller, just be provided with in the controller and be used for driving the die block and seal the first stroke value of die cavity bottom and be used for driving the second stroke value that the die block compressed tightly after the completion of moulding plastics.

Further setting: the side forms mechanism that opens and shuts includes that the difference slides and sets up in the side forms of die cavity both sides and sets up the side forms cylinder in the connecting seat both sides, set up the chamber that holds that is used for holding the side forms cylinder in the connecting seat both sides, the side forms is close to the both ends that hold chamber one side and all articulates there is the connecting axle, the one end that the side forms was kept away from to the connecting axle articulates there is the universal driving shaft, the other end of universal driving shaft articulates on the wall that holds the chamber, the both ends difference swing joint of side forms cylinder is in the junction of two universal driving shafts and two connecting.

Further setting: the driving piece is set to be a lifting cylinder, a piston rod of the lifting cylinder is connected with a push rod, and the push rod is connected with a lifting seat.

By adopting the technical scheme, the utility model discloses relative prior art compares, has following advantage:

1. the bottom die is driven to lift by the bottom die lifting mechanism, the side die opening and closing mechanism drives the side dies to open and close, the shoe tree lifting mechanism drives the shoe tree to lift, the automatic control of opening and closing of the upper-connecting injection mold can be performed in a matching mode, and after the shoe tree is closed, the toe cap of the shoe tree is pressed by the toe cap pressing mechanism, so that the shoe tree is automatically stabilized, manual operation is not needed, and the effect of improving the production efficiency is achieved;

2. the shoe tree mounting seat is controlled to rotate through the rotary replacing mechanism, so that the shoe tree on the shoe tree mounting seat can be replaced, the shoe tree can be conveniently and quickly disassembled, and the effect of improving the production efficiency is achieved;

3. through the two installation positions, the shoe tree installation seat can be provided with two shoe trees, so that when the shoe tree installation seat is driven to rotate by the rotary replacement mechanism, the two shoe trees are used for performing alternate operation, the shoe trees are replaced in the alternate operation process, and the effect of improving the production efficiency is achieved;

4. the bottom die lifting mechanism is matched with the controller through the sensor to lift in two sections, so that the bottom die can further lift, injection and compaction after die assembly and injection, and the forming precision is improved.

Drawings

FIG. 1 is a schematic structural view of an opening and closing unit of the upper-connecting injection mold;

FIG. 2 is a schematic structural view of the upper-connecting injection mold opening and closing unit in the bottom view direction;

FIG. 3 is a schematic structural view of the upper injection mold opening and closing unit exposing the accommodating cavity;

FIG. 4 is an enlarged schematic view at A in FIG. 3;

FIG. 5 is a schematic sectional view of a part of the structure of the shoe tree lifting mechanism when the upper-connecting injection mold opening and closing unit is cut open;

fig. 6 is a partial mechanism diagram of the lifting seat with its mounting cavity cut away to show the rotary exchange mechanism.

In the figure: 1. a connecting seat; 11. a mold cavity; 12. an accommodating chamber; 2. a bottom die lifting mechanism; 21. a pneumatic drive; 22. a bottom die mounting seat; 3. a side die opening and closing mechanism; 31. a side template; 32. a side die cylinder; 33. A connecting shaft; 34. a linkage shaft; 4. a shoe tree lifting mechanism; 41. a lifting seat; 411. a placement cavity; 42. a shoe tree mounting base; 421. an installation position; 43. a drive member; 5. a rotary replacement mechanism; 51. a rotating shaft; 52. a driven gear; 53. a rack; 531. a line limiting block; 54. a push cylinder; 6. a toe cap pressing mechanism; 61. a pressure head cylinder; 62. pressing the toe cap; 7. a sensor; 8. a controller; 9. a push rod.

Detailed Description

The opening and closing unit of the upper injection mold is further described with reference to fig. 1 to 6.

The utility model provides a help injection mold unit that opens and shuts even, as shown in fig. 1, including connecting seat 1 that is equipped with die cavity 11, set up in die block elevating system 2 of die cavity 11 bottom, set up in the side forms of 11 lateral walls of die cavity mechanism 3 that opens and shuts and set up in shoe tree elevating system 4 of die cavity 11 top, die block elevating system 2 is used for controlling the die block and goes up and down, and side forms mechanism 3 that opens and shuts is used for controlling opening and shutting of side forms, and shoe tree elevating system 4 is used for controlling the shoe tree and goes up and down to cooperation control helps injection mold opens and shuts even, improves automaticl.

As shown in fig. 1 and fig. 2, the bottom die lifting mechanism 2 includes a pneumatic driving member 21 installed at the bottom of the connecting seat 1 and a bottom die mounting seat 22 connected to a piston rod of the pneumatic driving member 21, the bottom die mounting seat 22 is disposed opposite to the mold cavity 11, and the bottom die is installed on the bottom die mounting seat 22, so that the hydraulic rod can push the bottom die mounting seat 22 to lift, thereby facilitating the control of the opening and closing of the bottom die. Wherein, pneumatic driving piece 21 adopts the multiple power cylinder to provide great driving force, improve the shaping precision. The bottom die mounting seat 22 is provided with a sensor 7 for detecting the lifting stroke of the bottom die mounting seat 22 at the bottom, the sensor 7 adopts a displacement sensor 7, the sensor 7 is in signal connection with a controller 8, and the driving stroke of the pneumatic driving part 21 is controlled by the controller 8. Be provided with in the controller 8 and be used for driving the die block and seal the first stroke value of die cavity bottom and be used for driving the second stroke value that the die block compressed tightly after the completion of moulding plastics to divide into two steps with the ascending step of die block, first step drives the die block and rises, makes the die block preliminary compound die in die cavity 11, and after the completion of moulding plastics, it carries out the second section and rises to drive the die block, thereby compresses tightly injection moulding's die cavity, improves product shaping precision.

As shown in fig. 1, 3 and 4, the side forms opening and closing mechanism 3 includes side forms 31 respectively slidably disposed on two sides of the mold cavity 11 and side forms cylinders 32 disposed in two sides of the connecting seat 1, wherein accommodating cavities 12 for accommodating the side forms cylinders 32 are disposed in two sides of the connecting seat 1, connecting shafts 33 are respectively hinged to two ends of one side of the side forms 31 close to the accommodating cavities 12, one ends of the connecting shafts 33 far from the side forms 31 are hinged to a linkage shaft 34, one ends of the linkage shaft 34 far from the connecting shafts 33 are hinged to a cavity wall of one side of the accommodating cavity 411 far from the side forms 31, the linkage shafts 34 and the connecting shafts 33 are disposed in a one-to-one correspondence manner, piston rods of the side forms cylinders 32 are movably connected to a joint of one of the linkage shafts 34 and the connecting shafts 33, and one end of the side forms cylinder 32 far from the piston rods. The side forms are installed on the side form plate 31, when a piston rod of a side form air cylinder 32 pushes, the two linkage shafts 34 and the connecting shaft 33 are driven to rotate, the linkage shafts 34 and the connecting shaft 33 rotate to be in the same straight line, the side forms reach the maximum stroke at the moment, the side forms on the two sides are abutted against each other to be matched, opening and closing of the side forms are controlled conveniently and rapidly, the linkage shafts 34 and the connecting shaft 33 are matched to support during matching, supporting force is large, stability after matching is improved, and forming accuracy is improved.

As shown in fig. 1 and 5, the shoe tree lifting mechanism 4 includes a lifting seat 41 sliding up and down on the connection seat 1, a shoe tree mounting seat 42 fixed on the lifting seat 41, and a driving member 43 disposed on the connection seat 1 for driving the lifting seat 41 to lift up and down, and the driving member 43 is used to drive the lifting seat 41 to lift up and down by mounting the shoe tree on the shoe tree mounting seat 42, so as to drive the shoe tree mounting seat 42 to lift up and down, thereby moving the shoe tree to lift up and down, so as to control the opening and closing of the shoe tree. Wherein, driving piece 43 sets up to the lift cylinder, and the piston rod of lift cylinder is connected with catch bar 9, and catch bar 9 is connected with lift seat 41, drives catch bar 9 by the lift cylinder and goes up and down, can drive lift seat 41 and go up and down.

As shown in fig. 1 and 5, a toe cap pressing mechanism 6 for pressing a toe cap is further disposed on the lifting seat 41, so as to press a position of the toe cap after the shoe tree is closed, improve stability of closing the shoe tree, and improve forming accuracy. Specifically, the toe cap press-fit mechanism 6 includes the pressure head cylinder 61 installed on the lifting seat 41 and the toe cap pressing block 62 connected with the piston rod of the pressure head cylinder 61, the toe cap pressing block 62 is aligned to the toe cap position located on the shoe tree, the lifting seat 41 is driven by the driving piece 43 to lift, the shoe tree is closed, then the pressure head cylinder 61 is utilized to drive the toe cap pressing block 62 to press the toe cap of the shoe tree, and the stability of the shoe tree after closing can be improved.

As shown in fig. 1 and 5, the lifting seat 41 is provided with a rotary replacement mechanism 5 for controlling the rotation of the shoe tree mounting seat 42, so that after one shoe tree is formed, the next shoe tree can be quickly switched to perform mold closing and injection molding, and the production efficiency is improved. Be provided with two installation positions 421 that are used for installing the shoe tree respectively on the top of shoe tree mount pad 42 and bottom to can install two shoe trees, so that switch the use, and when one of them shoe tree compound die was used, can change another shoe tree, effectively improve production efficiency.

As shown in fig. 1, fig. 5 and fig. 6, specifically, the rotary replacing mechanism 5 includes a rotating shaft 51 rotatably disposed on the lifting seat 41, a driven gear 52 fixed on the rotating shaft 51, a rack 53 engaged with the driven gear 52 and a pushing cylinder 54 disposed on the lifting seat 41, a housing cavity 411 for accommodating the rotating shaft 51, the driven gear 52 and the rack 53 is disposed in the lifting seat 41, a piston rod of the pushing cylinder 54 is connected with the rack 53, the rack 53 slides in the housing cavity 411 in a lifting manner, the shoe tree mounting seat 42 is fixed on the rotating shaft 51, so as to drive the rack 53 to lift by the pushing cylinder 54, that is, the driven gear 52 can be driven to rotate, thereby driving the shoe tree mounting seat 42 to rotate by the rotating shaft 51, so as to switch the mounting position 421 on the shoe tree mounting seat 42, and. Wherein, push cylinder 54 installs in the top of lifting seat 41, and the rack 53 is kept away from the fixed limited line piece 531 that is equipped with of one end of push cylinder 54, and when limited line piece 531 contradicted in the cell wall of settling chamber 411, axis of rotation 51 rotated 180 to make the once formation of rack 53 can transfer axis of rotation 51 to rotate 180, in order to carry out accurate switching in turn to the installation position 421 of shoe tree.

The working principle is as follows: before use, the bottom die is mounted on the bottom die mounting seat 22, the side dies are mounted on the side die plates 31, the shoe tree is mounted on the mounting position 421 of the shoe tree mounting seat 42, and the equipment is started after the shoe tree is mounted in place. The bottom die lifting mechanism 2 is utilized to drive the bottom die base to ascend for a first stroke, and the side die opening and closing mechanism 3 is utilized to drive the side dies on two sides to be closed, so that the bottom die and the side dies form a preliminary forming die. And then the shoe tree is driven to descend by the shoe tree lifting mechanism 4, so that the shoe tree is matched with the bottom die and the side die to form the finished forming die. After the shoe tree is in place, the toe cap pressing mechanism 6 is started to press the toe cap of the shoe tree by using the toe cap pressing block 62, so that the stability of the shoe tree during matching is improved, and the material can be injected into the mold. After the material injection is completed, the bottom die lifting mechanism 2 drives the bottom die to ascend for a second stroke so as to tightly press the internal injected material and improve the forming precision. After the forming is completed, the bottom die lifting mechanism 2, the side die opening and closing mechanism 3 and the shoe tree lifting mechanism 4 are reset, so that the die can be opened quickly, the opening and closing efficiency of the die is improved, and the production efficiency is improved. When producing next shoes of moulding plastics of helping even, utilize rotatory change mechanism 5 to drive shoe tree mount pad 42 and rotate, can switch another shoe tree and use, the next shoes of rapid prototyping of being convenient for improve production efficiency.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A side-connected injection mold opening and closing unit is characterized by comprising a connecting seat (1) provided with a mold cavity (11), a bottom mold lifting mechanism (2) arranged at the bottom of the mold cavity (11), a side mold opening and closing mechanism (3) arranged on the side wall of the mold cavity (11) and a shoe tree lifting mechanism (4) arranged above the mold cavity (11), wherein the bottom mold lifting mechanism (2) is used for controlling the bottom mold to lift, the side mold opening and closing mechanism (3) is used for controlling the side mold to open and close, the shoe tree lifting mechanism (4) comprises a lifting seat (41) which can slide on the connecting seat (1) in a lifting way, a shoe tree mounting seat (42) fixed on the lifting seat (41) and a driving piece (43) which is arranged on the connecting seat (1) and used for driving the lifting seat (41) to lift, and a rotary replacing mechanism (5) used for controlling the shoe tree mounting seat (42) to, the lifting seat (41) is provided with a toe cap pressing mechanism (6) for pressing the toe cap.

2. A lasting injection mold opening and closing unit according to claim 1, wherein the shoe tree mounting seat (42) is provided with two mounting positions (421) for mounting a shoe tree at the top end and the bottom end, respectively.

3. A helping injection mold opening and closing unit according to claim 1 or 2, characterized in that, the rotary replacing mechanism (5) includes a rotating shaft (51) rotatably disposed on the lifting seat (41), a driven gear (52) fixed on the rotating shaft (51), a rack (53) engaged with the driven gear (52), and a pushing cylinder (54) disposed on the lifting seat (41), a housing cavity (411) for accommodating the rotating shaft (51), the driven gear (52) and the rack (53) is disposed in the lifting seat (41), a piston rod of the pushing cylinder (54) is connected with the rack (53), the rack (53) is slidably disposed in the housing cavity (411) in a lifting manner, and the shoe last mounting seat (42) is fixed on the rotating shaft (51).

4. A helping injection mold opening and closing unit according to claim 3, characterized in that, the pushing cylinder (54) is installed on the top of the lifting seat (41), a limiting block (531) is fixed on one end of the rack (53) far away from the pushing cylinder (54), and when the limiting block (531) is abutted against the groove wall of the accommodating cavity (411), the rotating shaft (51) rotates 180 °.

5. The upper injection mold opening and closing unit according to claim 1, wherein the toe cap pressing mechanism (6) comprises a pressure head cylinder (61) mounted on the lifting seat (41) and a toe cap pressing block (62) connected with a piston rod of the pressure head cylinder (61), and the toe cap pressing block (62) is aligned with the toe cap position of the shoe last.

6. A shoe upper injection mold opening and closing unit according to claim 1, wherein the bottom mold lifting mechanism (2) comprises a pneumatic driving member (21) installed at the bottom of the connecting base (1) and a bottom mold mounting base (22) connected with a piston rod of the pneumatic driving member (21), and the bottom mold mounting base (22) is arranged opposite to the mold cavity (11).

7. The upper-connecting injection mold opening and closing unit according to claim 6, wherein a sensor (7) for detecting the lifting stroke of the bottom mold mounting seat (22) is arranged at the bottom of the bottom mold mounting seat (22), the sensor (7) is connected with a controller (8), the driving stroke of the pneumatic driving member (21) is controlled by the controller (8), and a first stroke value for driving the bottom mold to seal the bottom of the cavity and a second stroke value for driving the bottom mold to compress after the injection molding is completed are arranged in the controller (8).

8. The upper-connecting injection mold opening and closing unit according to claim 1, wherein the side mold opening and closing mechanism (3) comprises side mold plates (31) respectively slidably arranged on two sides of the mold cavity (11) and side mold cylinders (32) arranged in two sides of the connecting base (1), accommodating cavities (12) for accommodating the side mold cylinders (32) are formed in two sides of the connecting base (1), connecting shafts (33) are respectively hinged to two ends of one side, close to the accommodating cavities (12), of the side mold plates (31), one ends, far away from the side mold plates (31), of the connecting shafts (33) are hinged to linkage shafts (34), the other ends of the linkage shafts (34) are hinged to the wall of the accommodating cavities (12), and two ends of the side mold cylinders (32) are respectively and movably connected to the connecting positions of the two linkage shafts (34) and the two connecting shafts (33).

9. A helping injection mold open and shut unit even according to claim 1, characterized in that, driving piece (43) sets up as lift cylinder, the piston rod of lift cylinder is connected with catch bar (9), catch bar (9) are connected with lift seat (41).