CN215619943U

CN215619943U - PE film stretching mechanism

Info

Publication number: CN215619943U
Application number: CN202121974485.6U
Authority: CN
Inventors: 刘海亮
Original assignee: Hubei Chuanhai Xinxing Material Co ltd
Current assignee: Hubei Chuanhai Xinxing Material Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-01-25
Anticipated expiration: 2031-08-20

Abstract

The utility model relates to a PE film stretching mechanism which comprises a fixed block and a screw rod, wherein the fixed block is provided with a chute, the chute is conical, two clamping blocks are arranged in the chute and are in sliding connection with the chute, the upper end of the screw rod is provided with a connecting rod and a rotating handle, the screw rod is in threaded fit with the rotating handle, the screw rod penetrates through the upper end of the fixed block, reaches the chute and is connected with the two clamping blocks, the screw rod is in sliding connection with the fixed block, the rotating handle is in rotating connection with the fixed block, and the screw rod is in limiting connection with the clamping blocks.

Description

PE film stretching mechanism

Technical Field

The utility model relates to the technical field of PE film production, in particular to a PE film stretching mechanism.

Background

The PE film is a macromolecular organic compound with the simplest structure and is the most widely applied macromolecular material in the world today. The PE protective film uses a special Polyethylene (PE) plastic film as a base material, and is classified into a high density polyethylene protective film, a medium density polyethylene, and a low density polyethylene according to the difference in density. The PE film has the greatest advantages of protecting products from being polluted, corroded and scratched in the processes of production, processing, transportation, storage and use and protecting the original bright and clean surface, thereby improving the quality of the products.

A stretching mechanism is needed in the processing process of the PE film; the existing stretching mechanism has some defects, the stretching device is inconvenient for fixing the PE film, and the PE film is inconvenient for stretching and is troublesome.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, an object of the present invention is to provide a PE film stretching mechanism, which is provided with a fixture for fixing a PE film, and the fixture has a simple structure and is easy and convenient to operate.

In order to achieve the purpose, the PE film stretching mechanism comprises a fixed block and a screw rod, wherein the fixed block is provided with a sliding groove, the sliding groove is conical, two clamping blocks are arranged in the sliding groove, and the clamping blocks are connected with the sliding groove in a sliding manner;

the upper end of the screw rod is provided with a connecting rod and a rotating handle, and the screw rod is in threaded fit with the rotating handle;

the screw rod penetrates through the upper end of the fixed block to reach the inside of the sliding groove and is connected with the two clamping blocks, the screw rod is in sliding connection with the fixed block, the rotating handle is in rotating connection with the fixed block, and the screw rod is in limiting connection with the clamping blocks.

Further, the two clamping blocks are in a ladder shape which is suitable for the sliding groove in a conical shape.

Furthermore, the surface of the fixed block is provided with a detachable baffle.

Further, the fixed block back has been seted up twice guide way, twice contained angle between the guide way with contained angle between the lateral wall is the same about the spout, the clamp splice back is equipped with the boss, the boss is located in the guide way, the boss with the guide way is sliding connection.

Furthermore, the surfaces of the two clamping blocks, which are contacted with each other, are sawtooth surfaces.

Compared with the prior art, the utility model has the beneficial effects that:

two such structures are connected respectively through connecting rod and two extreme points of carrying out tensile operation, rotatory handle lets the lead screw remove to the direction of keeping away from the spout in the fixed block, the lead screw removes two clamp splice of pulling and removes to the spout, the spout is the toper, it can separate to have just had the space between two clamp splice, put into between two clamp splice with PE membrane one end, the rotatory handle of antiport, let the lead screw remove in to the spout, promote two clamp splice and slide to the narrower one end of spout, let two clamp splice be close to each other and fix the PE membrane in the one end of carrying out tensile operation finally, the PE membrane both ends are fixed with this kind of mode respectively after alright tensile operation.

In conclusion, the PE film stretching mechanism is additionally provided with the clamp for fixing the PE film, and meanwhile, the clamp is simple in structure and easy and convenient to operate.

Drawings

FIG. 1 is a perspective view of a PE film stretching mechanism according to the present invention;

FIG. 2 is a front plan view of a PE film stretching mechanism according to the present invention;

FIG. 3 is a plan view of the back of a PE film stretching mechanism according to the present invention;

in the figure: 1. a fixed block; 2. a screw rod; 3. a chute; 4. a clamping block; 5. a connecting rod; 6. rotating the handle; 7. a baffle plate; 8. a guide groove; 9. and (4) a boss.

Detailed Description

To explain the technical content, structural features, attained objects and effects of the present invention in detail, embodiments are described below in detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.

Referring to fig. 1, fig. 2 and fig. 3, the present invention provides an embodiment:

the utility model provides a PE film stretching mechanism which comprises a fixed block 1 and a screw rod 2, wherein the fixed block 1 is provided with a chute 3, the chute 3 is conical, two clamping blocks 4 are arranged in the chute 3, and the clamping blocks 4 are in sliding connection with the chute 3;

the upper end of the screw rod 2 is provided with a connecting rod 5 and a rotating handle 6, and the screw rod 2 is in threaded fit with the rotating handle 6;

the screw rod 2 penetrates through the upper end of the fixed block 1 to reach the inside of the sliding groove 3 and is connected with the two clamping blocks 4, the screw rod 2 is in sliding connection with the fixed block 1, the rotating handle 6 is in rotating connection with the fixed block 1, and the screw rod 2 is in limiting connection with the clamping blocks 4.

Two such structures are respectively connected with two end points (not marked in the figure) for stretching operation through a connecting rod 5, a screw rod 2 is moved towards the direction far away from a chute 3 in a fixed block 1 by rotating a handle 6, the screw rod 2 moves to pull two clamping blocks 4 to move towards the chute 3, the chute 3 is conical, a space is formed between the two clamping blocks 4 and can be separated, one end of a PE film (not marked in the figure) is placed between the two clamping blocks 4, the rotating handle 6 is rotated reversely, the screw rod 2 moves towards the chute 3, the two clamping blocks 4 are pushed to slide towards the narrower end of the chute 3, the two clamping blocks 4 are close to each other, the PE film is finally fixed at one end for stretching operation, and the two ends of the PE film can be stretched after being fixed by the mode respectively.

Further, the two clamping blocks 4 are in a trapezoidal shape which is adapted to the sliding groove 3 with a conical shape.

The clamping blocks 4 are in surface contact, the contact area is increased, and the PE film is fixed more firmly.

Further, a detachable baffle 7 is arranged on the surface of the fixing block 1.

The clamping blocks 4 are prevented from being separated from the sliding grooves 3, and the worn clamping blocks 4 can be replaced after being detached.

Further, two guide grooves 8 have been seted up at the 1 back of fixed block, twice contained angle between the guide grooves 8 with contained angle between the lateral wall is the same about spout 3, the 4 backs of clamp splice are equipped with boss 9, boss 9 is located in guide grooves 8, boss 9 with guide grooves 8 are sliding connection.

The clamp splice 4 is being driven the in-process that removes by lead screw 2 and is removing along guide way 8, lets clamp splice 4 can not discover the card under the restriction of 3 lateral walls of spout and guide way 8 and die, the dislocation etc. the condition.

Furthermore, the contact surface of the two clamping blocks 4 is a sawtooth surface.

Increase the friction force and avoid the PE film from being separated from the two clamping blocks 4.

Claims

1. A PE membrane drawing mechanism is characterized in that: the clamping device comprises a fixed block (1) and a screw rod (2), wherein the fixed block (1) is provided with a sliding chute (3), the sliding chute (3) is conical, two clamping blocks (4) are arranged in the sliding chute (3), and the clamping blocks (4) are in sliding connection with the sliding chute (3);

the upper end of the screw rod (2) is provided with a connecting rod (5) and a rotating handle (6), and the screw rod (2) is in threaded fit with the rotating handle (6);

the lead screw (2) passes from the upper end of the fixed block (1) and reaches the inside of the sliding groove (3) and is connected with the two clamping blocks (4), the lead screw (2) is in sliding connection with the fixed block (1), the rotating handle (6) is in rotating connection with the fixed block (1), and the lead screw (2) is in limiting connection with the clamping blocks (4).

2. The PE film stretching mechanism according to claim 1, wherein: the two clamping blocks (4) are in a trapezoidal shape which is suitable for the tapered sliding groove (3).

3. The PE film stretching mechanism according to claim 1, wherein: the surface of the fixing block (1) is provided with a detachable baffle (7).

4. The PE film stretching mechanism according to claim 1, wherein: two guide way (8), twice have been seted up at fixed block (1) back contained angle between guide way (8) with contained angle between the lateral wall is the same about spout (3), clamp splice (4) back is equipped with boss (9), boss (9) are located in guide way (8), boss (9) with guide way (8) are sliding connection.

5. The PE film stretching mechanism according to claim 1, wherein: the surfaces of the two clamping blocks (4) which are contacted with each other are sawtooth surfaces.