CN217226535U

CN217226535U - Novel injection molding machine compound die device

Info

Publication number: CN217226535U
Application number: CN202220342168.0U
Authority: CN
Inventors: 金文韬; 胡绘国; 阮豪奇; 王贤超; 李存军
Original assignee: Haitian Plastics Machinery Group
Current assignee: Haitian Plastics Machinery Group
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2022-08-19
Anticipated expiration: 2032-02-21

Abstract

The utility model relates to a mold closing device's technical field, the easy problem that warp and weight are big of injection molding machine mold closing device in the prior art has been solved, and specifically disclose a novel injection molding machine mold closing device, including the fixed die plate, the tailboard, the movable mould board, power unit and toggle link mechanism, power unit passes through toggle link mechanism drive movable mould board and moves between fixed die plate and tailboard, realize opening and shutting the mould, in toggle link mechanism, add the inner connecting rod, when toggle link mechanism during operation, when back connecting rod part atress, its most component all concentrates on the inner connecting rod, because the inner connecting rod sets up the broad, it is difficult for fracture and deformation to take place, be equipped with a plurality of heavy chambeies on the tailboard simultaneously, can reduce tailboard weight, the lateral surface of tailboard is kept away from to the opening that subtracts the heavy chamber simultaneously, fracture when can preventing the tailboard from the clamping force.

Description

Novel injection molding machine compound die device

Technical Field

The utility model relates to a technical field of MOLD CLAMPING APPARATUS refers in particular to a novel injection molding machine MOLD CLAMPING APPARATUS.

Background

The existing toggle rod type die closing device of a die casting machine of an injection molding machine generally comprises a fixed die plate, a movable die plate and a tail plate which are fixed on a machine body, and the three die plates are connected through a pull rod. The tail plate and the movable template are connected through a connecting rod mechanism. The tail plate is provided with a driving device (such as an oil cylinder or a motor screw) capable of outputting reciprocating linear motion, and the output end of the driving device is connected with a thrust seat in the connecting rod mechanism. The parts are connected in series to form the integral series rigidity of the mold closing device, and bear the periodic heavy-load mold locking working condition together. The rigidity of the mold closing device directly influences the deformation of the mechanism, the excessive deformation directly influences the precision of a product or causes product defects, and the increase of the rigidity by simply increasing the volume and weight of parts can cause the waste of production cost.

Disclosure of Invention

The utility model discloses having considered aforementioned problem and having made, utility model's aim at provides a novel injection molding machine MOLD CLAMPING APPARATUS, increases the rigidity intensity of mechanism, prevents to warp to alleviate the holistic weight of device.

In order to achieve the above object, the utility model provides a novel injection molding machine compound die device, include:

fixing a template;

the tail plate is positioned on one side of the fixed template, a pull rod is arranged between the tail plate and the fixed template, one end of the pull rod is fixed on the fixed template, and the other end of the pull rod is connected with the tail plate;

the movable template is positioned between the tail plate and the fixed template, and can move along the axial direction of the pull rod;

the power mechanism is fixed on the tail plate;

the toggle rod mechanism comprises a thrust seat, a rear connecting rod, a small connecting rod and a front connecting rod, the thrust seat is connected with the output end of the power mechanism, one end of the rear connecting rod is hinged with the tail plate, the other end of the rear connecting rod is hinged with the front connecting rod, and one end of the front connecting rod, which is far away from the rear connecting rod, is hinged with the movable template;

the rear connecting rod comprises outer connecting rods and inner connecting rods, the inner connecting rods are located between the outer connecting rods, one end of each small connecting rod is hinged to the corresponding thrust seat, the other end of each small connecting rod is hinged to the corresponding inner connecting rod, and the width of each inner connecting rod is larger than that of each outer connecting rod.

According to the novel injection molding machine mold closing device, the outer connecting rod with the inner connecting rod all through first articulated shaft with the tailboard is articulated, the one end of preceding connecting rod pass through the second articulated shaft with the movable mould board is articulated, the other end of preceding connecting rod pass through the third articulated shaft simultaneously with the outer connecting rod and the inner connecting rod is articulated.

According to the novel injection molding machine closing device, the tailboard is close to be equipped with deep floor on one side of fixed die plate, be equipped with first heavy chamber that subtracts on the deep floor, just be equipped with the centre bore that runs through tailboard and deep floor on the tailboard, it is a plurality of first heavy chamber interval distribution that subtracts is in around the centre bore.

According to the novel injection molding machine mold closing device, the upper end and the lower end of the tail plate are respectively provided with a second weight reduction cavity, and the openings of the second weight reduction cavities are respectively positioned at the top and the bottom of the tail plate.

According to the novel injection molding machine mold closing device, the power mechanism is set to be a hydraulic oil cylinder, a first mounting plate is arranged on one side, away from the fixed mold plate, of the tail plate, the hydraulic oil cylinder is fixed on the first mounting plate, and a piston rod of the hydraulic oil cylinder penetrates through the center hole and is connected with the thrust base.

According to the novel injection molding machine closing device, four corners of the fixed die plate are provided with the pylons, pull rod holes penetrating through two end faces of the pylons are formed in the pylons, the fixed die plate is far away from one side of the movable die plate is provided with the back plate, and the back plate is simultaneously connected with four pylons.

According to the novel injection molding machine mold closing device, the back plate is designed to be the arc-shaped plate, the back plate is close to the column base, and an unloading groove is arranged at the position of the column base and is in an arc shape.

According to the novel injection molding machine mold closing device, the back plate is arranged on the fixed mold plate in a protruding mode towards one side far away from the movable mold plate.

According to the novel injection molding machine mold closing device, the movable mould board is close to be equipped with the boss on the plane of tailboard one side, just the movable mould board side is equipped with the otic placode, the otic placode is equipped with and is connected to the splice bar of boss.

The utility model discloses following beneficial effect has:

1. the toggle mechanism is additionally provided with the inner connecting rod, when the toggle mechanism works and the rear connecting rod is partially stressed, most of force is concentrated on the inner connecting rod, and the inner connecting rod is wider and is not easy to break and deform;

2. in the toggle rod mechanism, each part is an independent part, so that the toggle rod mechanism is convenient to assemble and disassemble;

3. the tail plate is provided with a plurality of weight reducing cavities, so that the weight of the tail plate can be reduced, and meanwhile, the openings of the weight reducing cavities are far away from the outer side surface of the tail plate, so that the tail plate can be prevented from being broken when being subjected to a clamping force;

4. the tail plate is provided with the reinforcing rib plate, so that the rigidity strength of the tail plate can be enhanced;

5. an unloading groove is formed in the position, close to the column base, of the back plate of the fixed template, so that stress caused by a pull rod during mold locking can be reduced;

6. be equipped with the splice bar that is connected to the boss on the otic placode, can be with the power transmission of mode locking axle to the boss on, and the boss is thicker, difficult fracture and deformation take place.

Drawings

Fig. 1 is a sectional view of the overall structure of the present invention;

fig. 2 is a top view of the toggle link mechanism of the present invention;

fig. 3 is an elevation view of the toggle link mechanism of the present invention;

FIG. 4 is a schematic view of the back structure of the fixed die plate of the present invention;

FIG. 5 is a schematic structural view of the movable mold plate of the present invention;

FIG. 6 is a schematic view of a tailgate construction;

in the figure: 100. fixing a template; 110. a column base; 111. a draw bar hole; 120. a back plate; 121. an unloading slot; 200. a tail plate; 210. a pull rod; 220. reinforcing rib plates; 221. a first weight-reducing cavity; 230. a central bore; 240. a second weight-reducing cavity; 300. moving the template; 310. a boss; 320. an ear plate; 330. connecting ribs; 400. a power mechanism; 500. a toggle lever mechanism; 510. a thrust seat; 521. an outer link; 522. an inner link; 523. a first hinge shaft; 530. a small connecting rod; 540. a front link; 541. a second hinge shaft; 542. a third hinge shaft.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 6, a novel mold closing apparatus for an injection molding machine comprises:

the fixed die plate 100, the fixed die plate 100 is fixed on the frame of the injection molding machine.

The tail plate 200 is located on one side of the fixed die plate 100, a pull rod 210 is arranged between the tail plate 200 and the fixed die plate 100, one end of the pull rod 210 is fixed on the fixed die plate 100, the other end of the pull rod 210 is connected with the tail plate 200, threads are arranged at the tail end of the pull rod 210, internal threads are arranged in a pull rod hole 111 of the tail plate 200, the tail plate 200 can be fixed on the pull rod 210 through threaded engagement, and the distance between the tail plate 200 and the fixed die plate 100 can be adjusted according to the size of a die.

The movable mold plate 300 is positioned between the tail plate 200 and the fixed mold plate 100, the movable mold plate 300 can move along the axial direction of the pull rod 210, and the movable mold plate 300 is connected with the pull rod 210 and can move towards one side far away from or close to the fixed mold plate 100 to realize the mold opening or mold closing action.

And a power mechanism 400 fixed on the tail plate 200, wherein the power mechanism 400 is used for providing power for the movement of the movable template 300.

The toggle mechanism 500 comprises a thrust seat 510, a rear connecting rod, a small connecting rod 530 and a front connecting rod 540, wherein the thrust seat 510 is connected with the output end of the power mechanism 400, one end of the rear connecting rod is hinged with the tail plate 200, the other end of the rear connecting rod is hinged with the front connecting rod 540, one end of the front connecting rod 540, which is far away from the rear connecting rod, is hinged with the movable template 300, the output end of the power mechanism 400 drives the thrust seat 510 to move horizontally, the thrust seat 510 drives the movable template 300 to move horizontally through the rear connecting rod and the front connecting rod 540, and because each part of the toggle mechanism 500 is independently assembled, the assembly and disassembly are also simpler.

The rear connecting rod comprises an outer connecting rod 521 and an inner connecting rod 522, the inner connecting rod 522 is positioned between the two outer connecting rods 521, one end of a small connecting rod 530 is hinged to the thrust seat 510, the other end of the small connecting rod 530 is hinged to the inner connecting rod 522, the width of the inner connecting rod 522 is larger than that of the outer connecting rod 521, the inner connecting rod 522 is additionally arranged, when the toggle mechanism 500 is subjected to a mold locking force, a large part of force borne by the rear connecting rod is borne by the inner connecting rod 522, the width of the rear connecting rod is larger, the rear connecting rod can be prevented from being broken, the strength of the toggle mechanism 500 is integrally increased, and the deformation of the rear connecting rod is prevented.

The outer link 521 and the inner link 522 are both hinged to the tailgate 200 through a first hinge shaft 523, one end of the front link 540 is hinged to the movable platen 300 through a second hinge shaft 541, the other end of the front link 540 is hinged to the outer link 521 and the inner link 522 through a third hinge shaft 542, and the inner link 522 and the outer link 521 rotate synchronously.

A reinforcing rib plate 220 is arranged on one side of the tailboard 200 close to the fixed die plate 100, a first weight-reducing cavity 221 is arranged on the reinforcing rib plate 220, a central hole 230 penetrating through the tailboard 200 and the reinforcing rib plate 220 is arranged on the tailboard 200, a plurality of first weight-reducing cavities 221 are distributed around the central hole 230 at intervals, the reinforcing rib plate 220 is used for reinforcing the strength of the tailboard 200, and the first weight-reducing cavities 221 are used for reducing the whole weight of the tailboard 200.

The upper end and the lower end of the tailboard 200 are respectively provided with a second weight reducing cavity 240, the openings of the two second weight reducing cavities 240 are respectively positioned at the top and the bottom of the tailboard 200, the second weight reducing cavities 240 are used for realizing the light weight of the tailboard 200, and meanwhile, the outer side surface of the tailboard 200 is kept complete, so that the tailboard 200 can be prevented from being broken under the condition of a clamping force.

The power mechanism 400 is a hydraulic cylinder, a first mounting plate is arranged on one side of the tail plate 200 away from the fixed die plate 100, the hydraulic cylinder is fixed on the first mounting plate, a piston rod of the hydraulic cylinder penetrates through the central hole 230 to be connected with the thrust base 510, the hydraulic cylinder drives the piston rod to perform telescopic motion, further drives the thrust base 510 to perform horizontal motion, and drives the movable die plate 300 to perform motion through the toggle rod mechanism 500.

The four corners of the fixed die plate 100 are provided with pylons 110, the pylons 110 are provided with pull rod holes 111 penetrating through two end faces of the pylons 110, one side of the fixed die plate 100 away from the movable die plate 300 is provided with a back plate 120, the back plate 120 is connected with the four pylons 110 at the same time, the pull rod holes 111 on the pylons 110 are used for fixing pull rods 210, and the back plate 120 can bear the force of the pull rods 210 on the four pylons 110.

The back plate 120 is an arc-shaped plate, and the unloading slot 121 is disposed at a position of the back plate 120 close to the pylon 110, the unloading slot 121 is arc-shaped, the back plate 120 is arc-shaped, stress concentration is not easy to occur, and the force that can be borne is larger, and the unloading slot 121 can unload a part of the force borne by the pylon 110.

The back plate 120 protrudes from the fixed mold plate 100 to a side away from the movable mold plate 300, that is, the back plate 120 protrudes to an outside, which can not only avoid interference with the fixed mold plate 100, but also make the protruding direction opposite to the stress direction, and can bear a larger force.

The plane of the movable mould plate 300 close to one side of the tail plate 200 is provided with a boss 310, the side edge of the movable mould plate 300 is provided with an ear plate 320, the ear plate 320 is provided with a connecting rib 330 connected to the boss 310, the boss 310 is used for thickening the movable mould plate 300 and preventing the movable mould plate 300 from deforming due to the force of the toggle rod mechanism 500, the ear plate 320 is used for connecting a mould locking shaft, when the mould locking force of the mould locking shaft is received, the force can be transmitted to the boss 310 through the connecting rib 330, and the ear plate 320 is prevented from being broken and deformed.

The technical solutions of the present invention have been described in detail with reference to the accompanying drawings, and the described embodiments are used to help understand the ideas of the present invention. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions in the present application as to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Claims

1. The utility model provides a novel injection molding machine compound die device which characterized in that includes:

fixing a template;

the power mechanism is fixed on the tail plate;

2. A novel injection molding machine mold closing device as claimed in claim 1, wherein the outer link and the inner link are both hinged to the tail plate through a first hinge shaft, one end of the front link is hinged to the movable platen through a second hinge shaft, and the other end of the front link is hinged to both the outer link and the inner link through a third hinge shaft.

3. The novel injection molding machine mold closing device according to claim 1, characterized in that a reinforcing rib plate is arranged on one side of the tail plate close to the fixed die plate, a first weight reduction cavity is arranged on the reinforcing rib plate, a central hole penetrating through the tail plate and the reinforcing rib plate is arranged on the tail plate, and the first weight reduction cavities are distributed around the central hole at intervals.

4. A novel injection molding machine mold closing device as claimed in claim 3, wherein the upper and lower ends of the tail plate are provided with second weight reduction cavities, and the openings of the two second weight reduction cavities are respectively positioned at the top and the bottom of the tail plate.

5. A novel injection molding machine mold closing device as claimed in claim 3, wherein the power mechanism is a hydraulic cylinder, a first mounting plate is arranged on one side of the tail plate away from the fixed mold plate, the hydraulic cylinder is fixed on the first mounting plate, and a piston rod of the hydraulic cylinder penetrates through the central hole and is connected with the thrust block.

6. A novel injection molding machine mold closing device as claimed in claim 1, wherein four corners of the fixed mold plate are provided with pylons, the pylons are provided with pull rod holes penetrating through two end faces of the pylons, and one side of the fixed mold plate away from the movable mold plate is provided with a back plate which is connected with four pylons simultaneously.

7. A novel injection molding machine mold closing device as claimed in claim 6, wherein the back plate is an arc-shaped plate, and the back plate is provided with a relief groove near the column base, and the relief groove is arc-shaped.

8. The novel injection molding machine closing device of claim 7, wherein the back plate is provided on the fixed platen in a protruding manner towards the side away from the movable platen.

9. A novel injection molding machine mold closing device as claimed in claim 1, wherein a boss is provided on the plane of the movable mold plate on the side close to the tail plate, and an ear plate is provided on the side of the movable mold plate, and the ear plate is provided with a connecting rib connected to the boss.