CN220864508U

CN220864508U - Spring tightener for die

Info

Publication number: CN220864508U
Application number: CN202321804040.2U
Authority: CN
Inventors: 周智勇; 龚双权
Original assignee: Yihe Plastic Electronic Products Co ltd
Current assignee: Yihe Plastic Electronic Products Co ltd
Priority date: 2023-07-10
Filing date: 2023-07-10
Publication date: 2024-04-30
Anticipated expiration: 2033-07-10

Abstract

The utility model discloses a spring tightener for a die, which comprises a rotary drum, a limiting drum, a screw rod and a locking structure, wherein the limiting drum is abutted against an ejector plate, the rotary drum is rotated to drive the screw rod to be screwed into a die carrier plate and continuously tighten the distance between the die carrier plate and the ejector plate, so that the spring tightening is realized, the structure is simple, the operation is convenient and quick, the fixation between the screw rod and the rotary drum is realized through the mutual matching of an elastic ring, an L-shaped tightening block, a gear and a rack, the screw rod can be automatically tightened according to screw rods with different sizes, tightening conditions of threaded holes with different sizes and depths of the die can be adapted, and the fixation and the movable state of the screw rod and the rotary drum can be rapidly switched through pulling a protruding block on a stripping plate so as to replace and detach the screw rod.

Description

Spring tightener for die

Technical Field

The utility model relates to the technical field of tighteners, in particular to a spring tightener for a die.

Background

The plastic mould often encounters to tighten up the thimble board (especially has the mould of oblique top) earlier when assembling, but the instrument of tightening up is very simple, inconvenient use, and length is difficult to adjust, and every adjustment spends a long time. In addition, the internal structural stability of part of the tightener is poor, so that the operation of tightening the spring is laborious and has a certain potential safety hazard, such as in a small-occupied-space spring tightener of the disclosed and authorized CN202021514629.5, a movable threaded rod is screwed onto a template carrier plate; further, the upper rotary cylinder is rotated to enable the upper rotary cylinder to synchronously rotate with the movable threaded rod, the ejector pin plate is pushed to approach the template support plate, so that the purpose of tightening the springs is achieved, when the template support plate with different thickness is required to be operated, the fastening bolts are unscrewed, the movable threaded rod with different lengths can be replaced, the movable threaded rod is fixed through the fastening bolts, but when the upper rotary cylinder is rotated and synchronously rotated with the movable threaded rod, the fastening bolts are very easy to loosen, the fastening bolts and the movable threaded rod are caused to slip, the movable threaded rod cannot be used, if the fastening bolts and the movable threaded rod are in tight butt joint, the movable threaded rod is easily caused to be excessively large in extrusion force and friction force, the surface of the movable threaded rod is worn and even broken, and the cost of accessory replacement and maintenance is improved.

Disclosure of utility model

The utility model aims at: in order to solve the problems that a tightening tool is simple, inconvenient to use, difficult to adjust in length, long in adjustment time, poor in stability of the internal structure of the tightener, and hard in operation of tightening a spring and has a certain potential safety hazard, the spring tightener for the die is provided.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a spring tightener for mould, including rotatory section of thick bamboo, spacing section of thick bamboo and lead screw, rotatory section of thick bamboo rotationally connects on spacing section of thick bamboo, the lead screw runs through rotatory section of thick bamboo and spacing section of thick bamboo from top to bottom, be provided with in the cavity of rotatory section of thick bamboo upper end and be used for carrying out spacing locking structure to the lead screw, locking structure is including fixing rotatory rotary barrel upper end and by the outside many racks of its axis outside radiation, meshing gear on the rack, articulated L type tightening block on the gear, sliding connection is on L type tightening block deviate from the dish and nested elastic ring of connecting a plurality of L type tightening blocks, the lower extreme of lead screw runs through the ejector pin board downwards and screw in mould carrier plate, set up the spring between ejector pin board and the mould carrier plate.

As a further description of the above technical solution:

The lower extreme of rotary drum sets up the pivot, sets up the ring channel along the lateral wall circumference of pivot, and the upper end of spacing section of thick bamboo sets up sleeve pipe and the through-hole that correspond with pivot and ring channel.

As a further description of the above technical solution:

the sleeve is rotatably sleeved on the rotating shaft, corresponding grooves are formed in the upper and lower abutting surfaces of the sleeve and the rotating shaft, and bearings are arranged in the grooves.

As a further description of the above technical solution:

the upper end of the L-shaped tightening block is provided with a sliding block which is in sliding connection with a sliding groove at the corresponding position of the release disc, the sliding block is a T-shaped sliding block, and the sliding groove is a concave-shaped sliding groove.

As a further description of the above technical solution:

The edge of the stripping plate extends out of the protruding block, the protruding block is connected in the guide groove of the corresponding position of the rotary cylinder in a sliding mode, a through hole is formed in the center of the stripping plate, and the screw rod penetrates through the through hole.

As a further description of the above technical solution:

The screw rod, the stripping disc, the elastic ring, the tightening structure formed by the opposite arrangement of the L-shaped tightening blocks, the bearing, the rotary cylinder and the limiting cylinder are all coaxially arranged.

In summary, due to the adoption of the technical scheme, compared with the prior art, the utility model has the following beneficial effects:

This spring tightener passes through spacing section of thick bamboo butt thimble board, rotates rotary drum drive lead screw in mould carrier plate and constantly tightens up the distance between mould carrier plate and the thimble board, realizes the spring and tightens up, and simple structure, convenient operation is swift, and the fixed between lead screw and the rotary drum is realized through elastic ring, L type tightening block, gear and rack mutually supporting, and can tighten up automatically according to different size lead screws, can adapt to the tightening conditions of different size screw holes and the depth of mould, and can carry out fast switch over to the fixed and the active state of lead screw and rotary drum through the protruding piece on the pulling take off the dish to change the dismantlement to the lead screw. The spring tightener can correspondingly optimize the die structure, and save die accessories (such as mountain-punching screws for fixing the ejector plate, the spring position is placed at the needle protection position, and the like).

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a spring tensioner for a mold.

FIG. 2 is a front cross-sectional view of a spring tensioner for a die.

Fig. 3 is a top view of a rotating drum (part hidden) in a spring tensioner for a mold.

FIG. 4 is a top view of the connection of the elastomeric ring and the L-shaped take-up block in a spring tensioner for a mold.

Legend description:

1. A rotary drum; 2. a limiting cylinder; 3. a screw rod; 4. a rack; 5. a gear; 6. an L-shaped tightening block; 7. a slide block; 8. removing the tray; 9. a chute; 10. a protruding block; 11. a guide groove; 12. an elastic ring; 13. a rotating shaft; 14. a sleeve; 15. a bearing; 16. an annular groove; 17. a through hole; 18. a needle ejection plate; 19. a die carrier plate; 20. and (3) a spring.

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.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a spring tightener for mould, including rotary drum 1, spacing section of thick bamboo 2 and lead screw 3, rotary drum 1 rotationally connects on spacing section of thick bamboo 2, lead screw 3 runs through rotary drum 1 and spacing section of thick bamboo 2 from top to bottom, be provided with the locking structure that is used for carrying out spacing to lead screw 3 in the cavity of rotary drum 1 upper end, the locking structure includes fixing at rotary drum 1 upper end and by the outward many racks 4 of its axis radiation, meshing gear 5 on rack 4, articulated L type tightening block 6 on gear 5, sliding connection takes off the dish 8 and nested elastic ring 12 of connecting a plurality of L type tightening blocks 6 on L type tightening block 6, the lower extreme of lead screw 3 runs through ejector pin plate 18 downwards and screw in mould carrier 19, set up spring 20 between ejector pin plate 18 and the mould carrier 19.

The lower extreme of rotary drum 1 sets up pivot 13, sets up ring channel 16 along the lateral wall circumference of pivot 13, and the upper end of spacing section of thick bamboo 2 sets up sleeve pipe 14 and the through-hole 17 that correspond with pivot 13 and ring channel 16.

The sleeve 14 is rotatably sleeved on the rotating shaft 13, corresponding grooves are formed in the upper and lower abutting surfaces of the sleeve and the rotating shaft, and bearings 15 are arranged in the grooves.

The upper end of the L-shaped tightening block 6 is provided with a sliding block 7, the sliding block 7 is slidably connected in a sliding groove 9 at a position corresponding to the release disc 8, the sliding block 7 is a T-shaped sliding block, and the sliding groove 9 is a concave-shaped sliding groove.

The edge of the stripping plate 8 extends out of the protruding block 10, the protruding block 10 is slidably connected in a guide groove 11 at the corresponding position of the rotary cylinder 1, a through hole is arranged in the center of the stripping plate 8, and the screw rod 3 penetrates through the through hole.

The screw rod 3, the stripping disc 8, the elastic ring 12, the tightening structure formed by the opposite arrangement of the L-shaped tightening blocks 6, the bearing 15, the rotary cylinder 1 and the limiting cylinder 2 are all coaxially arranged.

The working principle of the spring tightener for the die of the embodiment comprises: when the device is used, the bearing 15 is placed in the groove of the limiting cylinder 2, the rotating shaft 13 at the bottom of the rotating sleeve 1 is inserted into the sleeve 14 at the upper end of the limiting cylinder 2, the release disc 8 is lifted, the gear 5 is separated from the rack 4, the screw rod 3 is sequentially inserted into the rotating cylinder 1 and the limiting cylinder 2 from top to bottom, a certain screw rod length is reserved below the limiting cylinder 2, the release disc 8 is put down, the gear 5 is abutted on the rack 4, the L-shaped tightening block 6 is driven to be tightened and abutted on the screw rod 3 by the tightening force of the elastic ring 12, the gear 5 is fixed on the rack 4 in a rolling engagement manner, the tightener assembly is completed, the tightener is pressed on the thimble plate 18, the lower end of the screw rod 3 is inserted into the through hole of the thimble plate 18 and abutted on the threaded hole of the die carrier plate 19, the rotating rotary cylinder 1 can be held tightly, the lower end of the screw rod 3 is screwed into the threaded hole of the die carrier plate 19 to continue rotating, the thimble plate 18 moves towards the direction of the die carrier plate 19, the distance between the two is tightened, and the spring tightener is tightened; when the spring is required to be loosened and the tightener is required to be taken out, the rotary cylinder 1 is reversely rotated; the fixed state of the screw rod 3 and the rotary cylinder 1 can be relieved by lifting the lifting plate 8, and the screw rod can be detached and replaced.

In summary, due to the adoption of the technical scheme, the spring tightener for the die has the following beneficial effects compared with the prior art:

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a spring tightener for mould, its characterized in that includes rotary drum (1), spacing section of thick bamboo (2) and lead screw (3), rotary drum (1) rotationally connects on spacing section of thick bamboo (2), lead screw (3) run through from top to bottom rotary drum (1) and spacing section of thick bamboo (2), be provided with in the cavity of rotary drum (1) upper end and be used for right lead screw (3) carry out spacing locking structure, locking structure is including fixing rotary drum (1) upper end and by its outside radial many racks (4) of axis, meshing gear (5) on rack (4), articulated L type tightening block (6) on gear (5), sliding connection are in deviate from dish (8) and nested connection a plurality of on L type tightening block (6) ejector pin plate (18) and screw in mould carrier plate (19), set up spring (20) between ejector pin plate (18) and mould carrier plate (19).

2. A spring tightener for a mold according to claim 1, characterized in that a rotary shaft (13) is provided at the lower end of the rotary cylinder (1), an annular groove (16) is provided circumferentially along the side wall of the rotary shaft (13), and a sleeve (14) and a through hole (17) corresponding to the rotary shaft (13) and the annular groove (16) are provided at the upper end of the limiting cylinder (2).

3. A spring tightener for moulds according to claim 2, characterized in that the sleeve (14) is rotatably sleeved on the rotating shaft (13) and is provided with corresponding grooves on the upper and lower abutment surfaces of the same, and bearings (15) are arranged in the grooves.

4. The spring tightener for the die according to claim 1, wherein a sliding block (7) is arranged at the upper end of the L-shaped tightening block (6), the sliding block (7) is slidably connected in a sliding groove (9) at a position corresponding to the release disc (8), the sliding block (7) is a T-shaped sliding block, and the sliding groove (9) is a concave-shaped sliding groove.

5. A spring tightener for moulds according to claim 4, characterized in that the edge of the release disc (8) extends out of a boss (10), said boss (10) being slidingly connected in a guide groove (11) in the corresponding position of the rotary drum (1), the center of the release disc (8) being provided with a through hole through which the screw (3) passes.

6. A spring tightener for moulds according to any of the claims 1-5, characterised in that the screw (3), the ejector disc (8), the elastic ring (12), the tightening structure formed by the opposite arrangement of the plurality of L-shaped tightening blocks (6), the bearing (15) and the rotating cylinder (1) and the limiting cylinder (2) are all coaxially arranged.