CN220076759U - Pressure clamping mechanism of bundling device - Google Patents

Abstract

The utility model discloses a pressure clamping mechanism of a bundling device, which belongs to the technical field of bundling machines and comprises a fixed frame and a clamping disc, wherein a plurality of groups of sliding grooves are formed in the clamping disc in an annular array mode, a group of clamping jaws are arranged in each group of sliding grooves, and a group of spiral turntables are arranged below the clamping jaws and positioned in the clamping disc. The chuck type clamping mechanism is fully suitable for clamping film cloth rolls with different diameters, and the applicability is wider; a spring is arranged between the clamping jaw and the pressing plate, when the clamping force is too large, the second limiting block is triggered to be pressed downwards to lock the clamping jaw, the clamping jaw cannot continue to provide larger clamping pressure in a stepping manner, and the film cloth roll is prevented from being damaged; but clamping jaw and the elasticity centre gripping mode of supporting the clamp plate have also fully guaranteed the clamping force, avoid the clamping force degree too little, and the fixture of this scheme can automated control clamping force, has better result of use.

Description

Pressure clamping mechanism of bundling device

Technical Field

The utility model belongs to the technical field of bundling devices, and particularly relates to a pressure clamping mechanism of a bundling device.

Background

The bundling device is special for bundling packaging equipment; in production, the film cloth is firstly rolled into a cylinder shape, and then the rolled film cloth is bound by a binding device, and the whole process needs a pressure clamping mechanism to clamp and fix the cylindrical film cloth roll.

The pressure fixture on the current bundling machine is mostly custom-made structure, can only accomplish the membrane cloth bundling centre gripping of predetermined specification, and the suitability is not enough, simultaneously, the force of centre gripping in-process is difficult to control, when the clamping force too big, damages the membrane yardage roll easily, and when the clamping force degree is too low, then causes the membrane yardage roll to loosen easily, influences the bundling effect.

Disclosure of Invention

The utility model aims to provide a pressure clamping mechanism of a bundling device, which aims to solve the problem that the prior coupler is put forward in the use process in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the pressure clamping mechanism of the bundling device comprises a fixed frame and a clamping disc, wherein a plurality of groups of sliding grooves are formed in the clamping disc in an annular array manner, a group of clamping claws are arranged in each group of sliding grooves, and a group of spiral turntables are arranged below the clamping claws in the clamping disc;

a group of gear rods are connected with the lower part of the spiral turntable in a meshed manner, a group of thread disk grooves are formed in the disk surface of the spiral turntable, a first limiting block and a second limiting block are arranged at the bottom of the clamping jaw, and the first limiting block and the second limiting block extend into the thread disk grooves;

the front end of the claw is provided with a pressing plate, the lower part of the pressing plate is rotationally connected with the claw through a rotating shaft, a spring is connected between the upper part of the pressing plate and the claw, the uppermost end of the pressing plate is also provided with a contact, the uppermost end of the claw is provided with a touch plate, and a lifting device for controlling the second limiting block to lift is arranged in the claw;

limiting teeth are arranged on the thread disc groove and the second limiting block.

Preferably, the lifting device controls the second limiting block to do lifting movement based on the connection relation between the contact and the touch plate.

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

the chuck type clamping mechanism is fully suitable for clamping film cloth rolls with different diameters, and the applicability is wider; a spring is arranged between the clamping jaw and the pressing plate, when the clamping force is too large, the second limiting block is triggered to be pressed downwards to lock the clamping jaw, the clamping jaw cannot continue to provide larger clamping pressure in a stepping manner, and the film cloth roll is prevented from being damaged; but clamping jaw and the elasticity centre gripping mode of supporting the clamp plate have also fully guaranteed the clamping force, avoid the clamping force degree too little, and the fixture of this scheme can automated control clamping force, has better result of use.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present utility model;

FIG. 2 is a schematic diagram of the internal components of the present utility model;

FIG. 3 is a schematic view of a clamping jaw structure according to the present utility model;

fig. 4 is a schematic diagram of the connection of the clamping jaw of the present utility model to the screw chuck.

In the figure: 1. a fixing frame; 2. a clamping plate; 3. a sliding groove; 4. a clamping jaw; 5. film cloth roll; 6. a gear lever; 7. a spiral turntable; 8. a thread disc groove; 9. a pressing plate; 10. a spring; 11. a touch panel; 12. a contact; 13. a first limiting block; 14. a second limiting block; 15. and a limit tooth.

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.

Referring to fig. 1-4, a pressure clamping mechanism of a bundling device comprises a fixing frame 1 and a clamping disc 2, wherein a plurality of groups of sliding grooves 3 are formed in an annular array on the clamping disc 2, a group of clamping claws 4 are arranged in each group of sliding grooves 3, and a group of spiral turntables 7 are arranged below the clamping claws 4 and in the clamping disc 2;

a group of gear rods 6 are connected below the spiral turntable 7 in a meshed manner, a group of thread disc grooves 8 are formed in the disc surface of the spiral turntable 7, a first limiting block 13 and a second limiting block 14 are arranged at the bottom of the clamping jaw 4, and the first limiting block 13 and the second limiting block 14 extend into the thread disc grooves 8;

the front end of the claw 4 is provided with a pressing plate 9, the lower part of the pressing plate 9 is rotationally connected with the claw 4 through a rotating shaft, a spring 10 is connected between the upper part of the pressing plate 9 and the claw 4, the uppermost end of the pressing plate 9 is also provided with a contact 12, the uppermost end of the claw 4 is provided with a touch plate 11, and a lifting device for controlling a second limiting block 14 to lift is arranged in the claw 4;

limiting teeth 15 are arranged on the thread disc groove 8 and the second limiting block 14.

Aiming at the problems that the existing bundling and clamping mechanism cannot be used for bundling film cloth rolls 5 with different diameter specifications and has poor applicability, the scheme adopts the structure of the chuck to clamp the film cloth rolls 5, and a plurality of groups of clamping claws 4 of the chuck can slide in the sliding groove 3 so as to adapt to the clamping and fixing of the film cloth rolls 5 with different diameters;

specifically, the chuck clamping principle of the scheme is that the gear rod 6 can be driven to rotate through the power device, the gear rod 6 rotates to drive the meshed spiral turntable 7 to rotate, a threaded disc groove 8 is formed in the disc surface of the spiral turntable 7, a first limiting block 13 and a second limiting block 14 are arranged at the bottom of the clamping jaw 4, the first limiting block 13 and the second limiting block 14 extend into the threaded disc groove 8, when the spiral turntable 7 rotates, the threaded disc groove 8 can limit the movement of the first limiting block 13 and the second limiting block 14, according to different rotation directions, the first limiting block 13 and the second limiting block 14 can be limited to move away from the circle center of the spiral turntable 7 in a stepping mode, meanwhile, as the clamping jaw 4 is installed in the sliding groove 3 and can only linearly slide in the sliding groove 3 and cannot rotate along with the spiral turntable 7, and when the spiral turntable 7 rotates, the clamping jaw 4 can slide inwards or outwards along the sliding groove 3 according to different rotation directions; when the membrane cloth roll 5 needs to be clamped, the control claw 4 slides inwards, so that the pressure clamping of the membrane cloth roll 5 is completed, and when the membrane cloth roll 5 needs to be loosened, the control claw 4 slides outwards, so that the pressure clamping of the membrane cloth roll 5 is completed.

Further, the lifting device controls the second limiting block 14 to do lifting movement based on the connection relation between the contact 12 and the touch plate 11.

Specifically, in the solution to the problem that the existing pressure clamping mechanism is difficult to control the clamping force, in the solution, when the film cloth roll 5 is clamped, the pressing plate 9 is firstly in contact with the film cloth roll 5, as the clamping claw 4 continues to feed, the upper end of the pressing plate 9 is stressed and increased, the spring 10 is compressed, meanwhile, the contact 12 on the pressing plate 9 is closer to the contact plate 11, when the pressing force reaches a preset value, the contact 12 is in contact with the contact plate 11, and at the moment, the second limiting block 14 is pressed down under the control of a lifting device (not shown in the figure, specifically referring to an electronic pressing device);

because the thread disc groove 8 and the second limiting block 14 are provided with the limiting teeth 15, when the second limiting block 14 is pressed down, the thread disc groove 8 and the limiting teeth 15 on the second limiting block 14 can limit the relative movement of the clamping jaw 4 and the spiral turntable 7, the clamping chuck clamping mechanism is locked, the clamping jaw 4 can not continue to provide larger clamping pressure in a stepping manner, and the film cloth roll 5 is prevented from being damaged; but clamping jaw 4 and the elasticity centre gripping mode of supporting clamp plate 9 have also fully guaranteed the clamping force, avoid the clamping force degree too little, and the fixture of this scheme can the automated control clamping force, has better result of use.

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 (2)

1. A pressure fixture of bundling device, its characterized in that: the clamping device comprises a fixing frame and a clamping disc, wherein a plurality of groups of sliding grooves are formed in an annular array on the clamping disc, a group of clamping claws are arranged in each group of sliding grooves, and a group of spiral turntables are arranged in the clamping disc below the clamping claws;

a group of gear rods are connected with the lower part of the spiral turntable in a meshed manner, a group of thread disk grooves are formed in the disk surface of the spiral turntable, a first limiting block and a second limiting block are arranged at the bottom of the clamping jaw, and the first limiting block and the second limiting block extend into the thread disk grooves;

the front end of the claw is provided with a pressing plate, the lower part of the pressing plate is rotationally connected with the claw through a rotating shaft, a spring is connected between the upper part of the pressing plate and the claw, the uppermost end of the pressing plate is also provided with a contact, the uppermost end of the claw is provided with a touch plate, and a lifting device for controlling the second limiting block to lift is arranged in the claw;

limiting teeth are arranged on the thread disc groove and the second limiting block.

2. A press clamping mechanism for a binding apparatus as claimed in claim 1, wherein: the lifting device controls the second limiting block to do lifting motion based on the connection relation between the contact and the touch plate.