CN220390216U

CN220390216U - Ejection device of injection molding machine

Info

Publication number: CN220390216U
Application number: CN202321734296.0U
Authority: CN
Inventors: 朱聪; 齐领先; 王袁龙; 陈慧敏
Original assignee: Nantong Gaoqiang Packaging Co ltd
Current assignee: Nantong Gaoqiang Packaging Co ltd
Priority date: 2023-07-04
Filing date: 2023-07-04
Publication date: 2024-01-26
Anticipated expiration: 2033-07-04

Abstract

The utility model relates to the field of ejection of injection molding machines, and discloses an ejection device of an injection molding machine, which comprises a lower die holder, wherein two sides of the bottom end of the lower die holder are provided with a top die groove, a top module is movably connected in the top die groove, the bottom end of the lower die holder is movably connected with a fixed box, the top ends of two sides of the fixed box are fixedly connected with a mounting plate, one side of the bottom end of the mounting plate is movably connected with a fixing bolt which is in threaded fit with the inside of a bolt hole, the output end of an electric push rod is fixedly connected with a sliding plate, and two sides of the top end of the sliding plate are fixedly connected with a top die plate. This injection molding machine ejecting device utilizes reset spring's elasticity for the sliding block slides and drives the locking board and resumes normal position, and then can carry out spacing to fixing bolt bottom and compress tightly, realizes its screw thread locking operation, avoids the screw thread that fixing bolt is possible not hard up and influences the infirm of fixed box installation, and then can avoid influencing follow-up ejecting effect to the product because of the installation infirm.

Description

Ejection device of injection molding machine

Technical Field

The utility model relates to the field of ejection of injection molding machines, in particular to an ejection device of an injection molding machine.

Background

The injection molding machine is a main molding device for molding thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic molding die, and after injection molding and cooling molding, a corresponding ejection device is required to eject and demold the molded products so as to facilitate the subsequent further injection molding.

In the chinese utility model patent: an ejection device of an injection molding machine with an authorized bulletin number CN211518390U comprises a top plate, a bottom plate, an upper die, a lower die, a support column and an air cylinder. According to the utility model, through the arrangement of the handle, the threaded rod can rotate, the two groups of thread sleeves are screwed outside the threaded rod, in the process of rotating the threaded rod, the two groups of thread sleeves are simultaneously close to or far away from the movable block, the bottom ends of the half fluted discs arranged on two sides of the movable block are respectively fixedly provided with the telescopic pieces, the telescopic pieces are in rotary connection with the thread sleeves, the half fluted discs can rotate through the telescopic pieces, and the half fluted discs are in meshed connection with the ejector rod, so that the movable block can drive the ejector rod to move in the vertical direction in the process of rotating the half fluted discs, and the product can be ejected out of the cavity of the lower die.

The following problems exist in the prior art:

1. in the prior art, the ejector is inconvenient in bolt looseness prevention, the ejector is usually fixed on the lower die holder by bolts, but screw looseness can occur when the bolts are fixed for a long time, so that the firm stability of the installation of the ejector can be influenced, and the ejection demoulding effect of a product can be influenced when the bolts are severe, so that the ejector is inconvenient to use.

2. In the prior art, the ejection device is inconvenient to assemble, disassemble and maintain, the ejection module and the ejection die rod are usually welded together, once the ejection module and the ejection die rod are worn and damaged, the ejection module is relatively complicated and inconvenient to assemble, disassemble and replace, and the whole ejection device is required to be replaced when serious, so that the maintenance cost is overlarge.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides an ejection device of an injection molding machine, which has the advantages of being convenient for bolt loosening prevention, convenient for disassembly and maintenance and the like, and solves the problems in the background art.

(II) technical scheme

In order to achieve the purposes of facilitating bolt looseness prevention and convenient disassembly and maintenance, the utility model provides the following technical scheme: the utility model provides an injection molding machine ejecting device, includes the die holder, the top die groove has been seted up to the both sides in die holder bottom, the inside swing joint in top die groove has a top module, the bolt hole has been seted up to the both sides in die holder bottom, the bottom swing joint of die holder has a fixed box, the top fixedly connected with mounting panel of fixed box both sides, mounting panel bottom one side swing joint has the fixing bolt with the inside looks screw-thread fit of bolt hole, the inside one side swing joint of mounting panel has the locking structure, the both sides fixedly connected with electric putter of the inside bottom of fixed box, electric putter's output fixedly connected with sliding plate, the both sides fixedly connected with cope match-plate pattern in sliding plate top, the inside swing joint of cope match-plate pattern has mounting structure.

The anti-loosening structure comprises a reserved groove, one side at the mounting plate bottom is seted up to the reserved groove, the inside wall fixedly connected with reset spring of reserved groove, one side fixedly connected with sliding block of reset spring, the sliding block bottom extends to the outside of mounting plate and fixedly connected with anti-loosening plate, utilizes reset spring's elasticity for the sliding block slides and drives anti-loosening plate and resumes the normal position, and then can carry out spacing compaction to the fixing bolt bottom, avoids the screw thread that the fixing bolt is possible not hard up to influence the infirm of fixed box installation, and then can avoid influencing subsequent cope match-die effect because of the installation is infirm.

Preferably, a sliding structure is formed between the upper end of the sliding block and the inside of the reserved groove, and a welding integrated structure is formed between the bottom end of the sliding block and one side of the top end of the anti-loosening plate, so that the sliding block can drive the anti-loosening plate to slide more stably and smoothly.

Preferably, the mounting structure comprises a mounting rod and a mounting groove, the mounting rod is arranged in the top template, the mounting spring is fixedly connected to the inner side wall of the mounting rod, one side of the mounting spring is fixedly connected with a movable plate, one side lower end of the movable plate is fixedly connected with the mounting rod which extends to the outside of the top template, one side upper end of the movable plate is fixedly connected with a positioning rod which extends to the outside of the top template, the bottom of the top module is provided with a clamping groove, the inside of the top module at one side lower end of the clamping groove is provided with a positioning hole, the top end of the top template is clamped with the inside of the clamping groove by the aid of elasticity of the mounting spring, the movable plate slides to drive the positioning rod to be clamped into the positioning hole, firm clamping installation between the top module and the top template is achieved, and further quick dismounting and mounting of the top module can be achieved, and maintenance or replacement of the top module are facilitated.

Preferably, a clamping structure is formed between the top template and the inside of the clamping groove, and the top view of the top template and the top view of the clamping groove are rectangular, so that preliminary clamping and dismounting between the top module and the top template are realized.

Preferably, a clamping structure is formed between the positioning rod and the inside of the positioning hole, and a welding integrated structure is formed between one side of the positioning rod and one side of the movable plate, so that firm clamping installation between the top module and the top template is realized.

Preferably, the limiting grooves are formed in the top templates at the top end and the bottom end of the mounting groove, and the limiting blocks which are in sliding fit with the inside of the limiting grooves are fixedly connected to the top end and the bottom end of the movable plate, so that the movable plate slides more stably and smoothly.

Preferably, the spout has been seted up to the inside wall of fixed case, and the sliding plate both sides fixedly connected with the inside matched with slider of spout for the upper and lower slip of sliding plate is more steady smooth and easy, the follow-up ejecting drawing of patterns action of being convenient for.

Advantageous effects

Compared with the prior art, the utility model provides an ejection device of an injection molding machine, which has the following beneficial effects:

1. this injection molding machine ejecting device, through the locking structure that moves that sets up, through the screw thread cooperation of fixing bolt and bolt hole inside, firmly fix the fixed box in the bottom of die holder, later loosen the anti-loosening plate, utilize reset spring's elasticity for the sliding block slides and drives the anti-loosening plate and resumes the normal position, and then can carry out spacing compaction to the fixing bolt bottom, realize its screw thread anti-loosening operation, avoid the screw thread that the fixing bolt is likely not hard up and influence the infirm of fixed box installation, and then can avoid influencing follow-up ejecting effect to the product because of the installation infirm, thereby solved inconvenient bolt and prevented not hard up problem.

2. This injection molding machine ejecting device, through the mounting structure who sets up, through the inside block of cope match-plate pattern top and draw-in groove, realize preliminary block dismouting between top module and the cope match-plate pattern, and utilize the elasticity of installation spring, make the fly leaf slide and drive the locating lever card inside to the locating hole, realize the firm block installation between top module and the cope match-plate pattern, and then can realize the quick assembly disassembly of top module, be convenient for maintain it or change, realize changing it after the top module damages, reduce corresponding maintenance cost, simultaneously through removable top module, make this ejecting device can be applicable to the ejecting action of different die holders, improve its suitability, thereby the problem of inconvenient dismouting maintenance has been solved.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of a three-dimensional structure of a fixing case of the present utility model;

FIG. 3 is a schematic cross-sectional elevation view of the present utility model;

FIG. 4 is a schematic side sectional view of the present utility model;

FIG. 5 is an enlarged schematic view of the mounting structure of the present utility model;

fig. 6 is an enlarged schematic view of the structure of fig. 4 a according to the present utility model.

In the figure: 1. a lower die holder; 2. a mounting plate; 3. an anti-loosening structure; 301. a return spring; 302. a reserved groove; 303. a sliding block; 304. an anti-loosening plate; 4. a fixed box; 5. a fixing bolt; 6. a top module; 7. a mounting structure; 701. a mounting rod; 702. a mounting groove; 703. installing a spring; 704. a limit groove; 705. a limiting block; 706. a movable plate; 707. a positioning rod; 708. positioning holes; 709. a clamping groove; 8. a top template; 9. a sliding plate; 10. a slide block; 11. a chute; 12. an electric push rod; 13. a top mold groove; 14. bolt holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

The preferred embodiment of the ejection device of the injection molding machine provided by the utility model is shown in fig. 1 to 6: the utility model provides an injection molding machine ejecting device, including die holder 1, top die groove 13 has been seted up to the both sides of die holder 1 bottom, top die groove 13's inside swing joint has a top module 6, bolt hole 14 has been seted up to the both sides of die holder 1 bottom, the bottom swing joint of die holder 1 has fixed box 4, the top fixedly connected with mounting panel 2 of fixed box 4 both sides, mounting panel 2 bottom one side swing joint has the fixing bolt 5 with the inside matched with screw thread of bolt hole 14, the inside one side swing joint of mounting panel 2 has locking structure 3, the both sides fixedly connected with electric putter 12 of the inside bottom of fixed box 4, electric putter 12's output fixedly connected with sliding plate 9, the both sides fixedly connected with cope match-plate pattern 8 on sliding plate 9 top, the inside swing joint of cope match-plate pattern 8 has mounting structure 7.

The anti-loosening structure 3 comprises a reserved groove 302, the reserved groove 302 is formed in one side of the bottom end of the mounting plate 2, a reset spring 301 is fixedly connected to the inner side wall of the reserved groove 302, a sliding block 303 is fixedly connected to one side of the reset spring 301, the bottom end of the sliding block 303 extends to the outside of the mounting plate 2 and is fixedly connected with an anti-loosening plate 304, the elastic force of the reset spring 301 is utilized to enable the sliding block 303 to slide to drive the anti-loosening plate 304 to restore to the original position, and then limiting compaction can be carried out on the bottom end of the fixing bolt 5, so that the possible loosening of threads of the fixing bolt 5 is avoided to influence the infirm of the installation of the fixing box 4.

In this embodiment, a sliding structure is formed between the upper end of the sliding block 303 and the interior of the reserved groove 302, and a welding integrated structure is formed between the bottom end of the sliding block 303 and one side of the top end of the anti-loosening plate 304, so that the sliding block 303 can more stably and smoothly drive the anti-loosening plate 304 to slide through the sliding between the sliding block 303 and the interior of the reserved groove 302.

Example 2

On the basis of embodiment 1, a preferred embodiment of the ejection device of the injection molding machine provided by the utility model is shown in fig. 1 to 6: the mounting structure 7 comprises a mounting rod 701 and a mounting groove 702, wherein the mounting rod 701 is arranged in the top template 8, the mounting spring 703 is fixedly connected to the inner side wall of the mounting rod 701, one side of the mounting spring 703 is fixedly connected with the movable plate 706, the lower end of one side of the movable plate 706 is fixedly connected with the mounting rod 701 which extends to the outside of the top template 8, the upper end of one side of the movable plate 706 is fixedly connected with the positioning rod 707 which extends to the outside of the top template 8, the bottom end of the top module 6 is provided with a clamping groove 709, the inside of the top module 6 at the lower end of one side of the clamping groove 709 is provided with a positioning hole 708, when the top module 6 is damaged or other specifications of the top module 6 need to be replaced, the top module 8 is clamped with the clamping groove 709 through the top end of the top template 8, and the elastic force of the mounting spring 703 is utilized, the movable plate 706 is enabled to slide to drive the positioning rod 707 to be clamped into the positioning hole 708, so that firm clamping installation between the top module 6 and the top template 8 is realized, and further quick dismounting of the top module 6 can be conveniently maintained or replaced.

In this embodiment, a locking structure is formed between the top template 8 and the inside of the slot 709, and the top view of the top template 8 and the slot 709 is rectangular, and preliminary locking and dismounting between the top module 6 and the top template 8 are realized by locking the top end of the top template 8 and the inside of the slot 709.

In this embodiment, a locking structure is formed between the positioning rod 707 and the inside of the positioning hole 708, and a welding integrated structure is formed between one side of the positioning rod 707 and one side of the movable plate 706, so that the top module 6 and the top template 8 are firmly locked and mounted by locking the positioning rod 707 and the inside of the positioning hole 708.

In this embodiment, a limit groove 704 is formed in the top mold plate 8 at the top and bottom ends of the installation groove 702, and a limit block 705 is fixedly connected to the top and bottom ends of the movable plate 706 and is in sliding fit with the inside of the limit groove 704, so that the sliding of the movable plate 706 is smoother and more stable by utilizing the sliding of the limit block 705 in the limit groove 704.

In addition, the inside wall of the fixed box 4 is provided with a chute 11, two sides of the sliding plate 9 are fixedly connected with sliding blocks 10 which are in sliding fit with the inside of the chute 11, and the sliding of the sliding blocks 10 in the chute 11 is utilized to enable the up-and-down sliding of the sliding plate 9 to be more stable and smooth, so that the subsequent ejection and demolding actions are facilitated.

When the anti-loosening device is used, the sliding block 303 is driven to slide in the reserved groove 302 to compress the reset spring 301 to a proper position by stirring the anti-loosening plate 304, the fixed box 4 is firmly fixed at the bottom end of the lower die holder 1 by the threaded fit of the fixing bolt 5 and the bolt hole 14, the anti-loosening plate 304 is loosened, the elastic force of the reset spring 301 is utilized to enable the sliding block 303 to slide to drive the anti-loosening plate 304 to restore to the original position, and therefore the bottom end of the fixing bolt 5 can be limited and compressed, and the problem that the installation of the fixed box 4 is not firm due to the possible loosening of threads of the fixing bolt 5 is avoided;

after the product is cooled and formed, the electric push rod 12 is started to drive the top template 8 to lift, so that the top module 6 lifts to apply upward force to the bottom end of the cooled product, ejection and demolding are facilitated, meanwhile, when the top module 6 is damaged or other specifications of the top module 6 need to be replaced, the mounting rod 701 can be pressed to drive the movable plate 706 to slide and compress the mounting spring 703, so that the positioning rod 707 moves to be completely separated from the inside of the positioning hole 708, then the top module 6 is pulled upward forcefully, the clamping groove 709 is completely separated from the top end of the top template 8, during mounting, the mounting rod 701 is pressed first, the positioning rod 707 moves to be completely in the inside of the mounting groove 702, then the top end of the top template 8 is clamped into the clamping groove 709, then the mounting rod 701 is released, the elastic force of the mounting spring 703 is utilized, the movable plate 706 is driven to slide and drive the positioning rod 707 to be clamped into the inside of the positioning hole 708, and therefore, quick dismounting of the top module 6 and the top template 8 are realized, and the convenience of maintenance or replacement of the top module 6 are facilitated.

To sum up, this injection molding machine ejecting device, the device can realize fixing bolt 5's screw thread locking, guarantee firm installation between fixed box 4 and the die holder 1, avoid leading to the installation not firm because of the screw thread is not hard up, and then influence the effect to the ejecting drawing of patterns of product, can realize the quick assembly disassembly of top module 6 simultaneously, realize changing it behind the top module 6 damage, reduce corresponding maintenance cost, simultaneously through removable top module 6 for this ejecting device can be applicable to the ejecting action of different die holders 1, improve its suitability.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an injection molding machine ejecting device, includes die holder (1), its characterized in that: the anti-loosening device comprises a lower die holder (1), a top die groove (13) is formed in two sides of the bottom end of the lower die holder (1), a top die block (6) is movably connected to the inside of the top die groove (13), bolt holes (14) are formed in two sides of the bottom end of the lower die holder (1), a fixed box (4) is movably connected to the bottom end of the lower die holder (1), a mounting plate (2) is fixedly connected to the top ends of the two sides of the fixed box (4), a fixing bolt (5) in threaded fit with the inside of the bolt holes (14) is movably connected to one side of the bottom end of the mounting plate (2), an anti-loosening structure (3) is movably connected to one side of the inside of the mounting plate (2), an electric push rod (12) is fixedly connected to two sides of the bottom end of the inside of the fixed box (4), a sliding plate (9) is fixedly connected to the top die plate (8) on two sides of the top end of the sliding plate (9), and a mounting structure (7) is movably connected to the inside of the top die plate (8).

The anti-loosening structure (3) comprises a reserved groove (302), one side of the bottom end of the mounting plate (2) is provided with the reserved groove (302), the inner side wall of the reserved groove (302) is fixedly connected with a reset spring (301), one side of the reset spring (301) is fixedly connected with a sliding block (303), and the bottom end of the sliding block (303) extends to the outer portion of the mounting plate (2) and is fixedly connected with an anti-loosening plate (304).

2. An ejector device of an injection molding machine as in claim 1, wherein: a sliding structure is formed between the upper end of the sliding block (303) and the inside of the reserved groove (302), and a welding integrated structure is formed between the bottom end of the sliding block (303) and one side of the top end of the anti-loose plate (304).

3. An ejector device of an injection molding machine as in claim 1, wherein: the mounting structure (7) comprises a mounting rod (701) and a mounting groove (702), wherein the mounting rod (701) is arranged in the top template (8), a mounting spring (703) is fixedly connected to the inner side wall of the mounting rod (701), a movable plate (706) is fixedly connected to one side of the mounting spring (703), the lower end of one side of the movable plate (706) is fixedly connected with the mounting rod (701) which extends to the outside of the top template (8), the upper end of one side of the movable plate (706) is fixedly connected with a positioning rod (707) which extends to the outside of the top template (8), a clamping groove (709) is formed in the bottom end of the top module (6), and a positioning hole (708) is formed in the top module (6) at the lower end of one side of the clamping groove (709).

4. An ejector device for an injection molding machine as in claim 3, wherein: an engagement structure is formed between the top template (8) and the inside of the clamping groove (709), and the top template (8) and the clamping groove (709) have rectangular top views.

5. An ejector device for an injection molding machine as in claim 3, wherein: a clamping structure is formed between the positioning rod (707) and the inside of the positioning hole (708), and a welding integrated structure is formed between one side of the positioning rod (707) and one side of the movable plate (706).

6. An ejector device for an injection molding machine as in claim 3, wherein: limiting grooves (704) are formed in the top templates (8) at the top end and the bottom end of the mounting groove (702), and limiting blocks (705) which are in sliding fit with the inside of the limiting grooves (704) are fixedly connected to the top end and the bottom end of the movable plate (706).

7. An ejector device of an injection molding machine as in claim 1, wherein: the inner side wall of the fixed box (4) is provided with a sliding groove (11), and two sides of the sliding plate (9) are fixedly connected with sliding blocks (10) which are in sliding fit with the inner part of the sliding groove (11).