CN213974673U

CN213974673U - Film drawing mechanism

Info

Publication number: CN213974673U
Application number: CN202022304730.4U
Authority: CN
Inventors: 王俊文; 黄付延; 付佳星; 李百源; 陈德
Original assignee: Guangdong Lyric Robot Automation Co Ltd
Current assignee: Guangdong Lyric Robot Automation Co Ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-08-17
Anticipated expiration: 2030-10-16

Abstract

The utility model relates to a draw membrane mechanism, including centre gripping subassembly and hot pressing component, the activity of centre gripping subassembly sets up one side at hot pressing component, the centre gripping subassembly includes a plurality of centre gripping units, the centre gripping unit is including setting up the clamp splice relatively, when clamping state, press from both sides tightly between the clamp splice and form the clamping face, open and press from both sides the in-process, two-way equidistance is opened between the clamp splice and is pressed from both sides, when drawing the membrane the clamping face of centre gripping unit and hot pressing component's hot pressing face coincidence. The utility model discloses simple structure, the clamp splice can two-way equidistance open the clamp to the tip that keeps the packaging film is located between the clamp splice, has improved the efficiency and the quality of centre gripping.

Description

Film drawing mechanism

Technical Field

The utility model relates to a diolame equipment field particularly, relates to a draw membrane mechanism.

Background

At present, in a packaging bag making device, a packaging film needs to be pulled out by an automatic film pulling device for a fixed length and then hot-pressed and packaged. Because the material of packaging film is softer, its free end is easy upwards perk because of warping or because of the effect of gravity downwarping, and the centre gripping unit of current draw membrane device can only one-way open, leads to its tip that can not keep the packaging film when centre gripping packaging film to be located between the clamp splice, causes to press from both sides can not reach packaging film or packaging film off normal, has influenced packaging quality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a draw membrane mechanism, its simple structure, the clamp splice can use the hot pressing face to open as the axial symmetry to the tip that keeps the packaging film is located between the clamp splice, has improved the efficiency and the quality of centre gripping.

The utility model provides a draw membrane mechanism, includes centre gripping subassembly and hot pressing component, the activity of centre gripping subassembly sets up in one side of hot pressing component, a serial communication port, the centre gripping subassembly includes a plurality of centre gripping units, the centre gripping unit is including setting up the clamp splice relatively, when clamping state, press from both sides tightly between the clamp splice and form the clamping face, at the clamp in-process of opening, two-way equidistance between the clamp splice is opened and is pressed from both sides, when drawing the membrane the clamping face of centre gripping unit and the coincidence of hot pressing component's hot pressing face.

Furthermore, the end part of the clamping block is provided with a clamping plate for dispersing the stress of the packaging film, and the extension direction of the clamping plate is orthogonal to the film pulling direction.

Furthermore, the clamping assembly comprises a fixing plate, and a plurality of clamping units are arranged in a row along the extending direction of the fixing plate.

Further, the clamping unit also comprises a clamping driving piece for driving the clamping blocks to open the clamps at equal intervals in the two directions.

Furthermore, a guide plate is arranged between the clamping driving piece and the clamping block, and a guide groove is formed in the guide plate.

Furthermore, the driving assembly comprises a horizontal driving unit for driving the clamping assembly to move horizontally and a vertical driving unit for driving the clamping assembly to move vertically, and the horizontal driving unit is movably connected with the vertical driving unit.

Further, the horizontal driving unit comprises a first driving piece and a guide rail, the guide rail extends along the horizontal direction, the first driving piece is arranged at one end of the guide rail, and the guide rail is movably connected with the vertical driving unit through a sliding block.

Furthermore, the both ends of unipolar manipulator are equipped with the first sensor that is used for responding to vertical drive unit position, vertical drive unit corresponds first sensor and is equipped with first response piece.

Furthermore, the vertical driving unit comprises a second driving piece and a screw rod, the screw rod extends in the vertical direction, and the second driving piece is in threaded connection with the clamping assembly through the screw rod.

Furthermore, one side of lead screw is equipped with a plurality of second sensors that are used for responding to the centre gripping subassembly position, the centre gripping subassembly corresponds the second sensor and is equipped with the second response piece.

Compared with the prior art, the beneficial effects of the utility model are that: because the clamp blocks are opened in two directions and equidistantly in the process of opening the clamp, the hot pressing surface of the hot pressing assembly is superposed with the clamping surface of the clamping unit in the process of pulling the film, so that the packaging film is ensured to be positioned between the clamp blocks, the clamping precision is improved, and the problems of upwarp and downwarping of the plastic film can be considered. The opening can be enlarged by the bidirectional opening clamp, and the plastic film can be better adapted to various states. The tip of clamp splice sets up splint, and the extending direction of splint with draw the membrane direction quadrature, effectively increased the area of contact of clamp splice with the packaging film, make the atress of packaging film more even, play the effect of protection packaging film, improvement draw the membrane quality.

Drawings

Fig. 1 is a schematic structural view of a film pulling mechanism according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the clamping assembly and the driving assembly of the film pulling mechanism according to the embodiment of the present invention.

Fig. 3 is a schematic structural diagram of another angle of the clamping assembly and the driving assembly of the film stretching mechanism according to the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of the clamping unit of the film pulling mechanism according to the embodiment of the present invention.

Fig. 5 is a partially enlarged view of a portion a in fig. 3.

The reference numbers illustrate: the clamping assembly 1, the clamping unit 11, the fixing plate 12, the clamping block 111, the clamping driving piece 112, the clamping plate 113 and the guide plate 114;

the driving assembly 2, the horizontal driving unit 21, the vertical driving unit 22, the first driving member 211, the single-axis robot 212, the first sensor 213, the second driving member 221, the lead screw 222, the first sensing piece 223, the second sensor 224, the second sensing piece 225, and the guide rail 226;

a hot-pressing assembly 3, an upper heat-sealing block 31 and a lower heat-sealing block 32.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1 to 4, in a preferred embodiment, the film drawing mechanism of the present invention mainly includes a clamping assembly 1, a driving assembly 2, and a hot pressing assembly 3, the hot pressing assembly 3 is used for heat sealing the packaging film, the clamping assembly 1 is movably disposed on one side of the hot pressing assembly 3 for clamping the free end of the packaging film, and the driving assembly 2 is used for driving the clamping assembly 1 to move, so as to draw the packaging film out to a fixed length.

The heat and pressure assembly 3 includes an upper heat-seal block 31 and a lower heat-seal block 32 which are opposed to each other, the upper heat-seal block 31 and the lower heat-seal block 32 being configured to be relatively movable so as to clamp and heat-seal the packaging film, the upper heat-seal block 31 and the lower heat-seal block 32 being clamped to form a heat-seal surface.

The clamping assembly 1 comprises a plurality of clamping units 11, each clamping unit 11 comprises clamping blocks 111 and a clamping driving part 112, the clamping blocks 111 are arranged oppositely, and clamping surfaces are formed by clamping the clamping blocks 111. In this embodiment, centre gripping driving piece 112 adopts the centre gripping cylinder, and its output is connected with clamp splice 111, and at opening the clamp in-process, centre gripping driving piece 112 can drive the two-way equidistance of clamp splice 111 and open the clamp, when drawing the membrane the clamping face of centre gripping unit 11 and the hot pressing surface coincidence of hot pressing subassembly 3 to guarantee that the packaging film is located between the clamp splice, improve the centre gripping precision, and can compromise the plastic film and upwarp and the problem of downwarping.

The tip of clamp splice 111 is equipped with splint 113, splint 113 and clamp splice 111 integrated into one piece, and the extending direction of splint 113 is orthogonal with drawing the membrane direction, and splint 113 is used for when pressing from both sides tight packaging film, the increase with the area of contact of packaging film, and then the atress of packaging film when the dispersion is drawn the membrane avoids the packaging film because of the atress too big deformation damage.

The clamping assembly 1 comprises a fixing plate 12, a plurality of clamping units 11 are arranged in a row along the extending direction of the fixing plate 12, wherein the extending direction of the fixing plate 12 is parallel to a hot pressing surface, the arranging direction of the clamping units 11 is matched with the free ends of the packaging film, when the packaging film is clamped, the clamping units 11 are matched to further disperse the stress of the packaging film, and the effects of protecting the packaging film and improving the quality of the drawn film are achieved. In this embodiment, the packaging film is pulled out in the horizontal direction, and the fixing plate 12 extends in the horizontal direction.

In order to ensure that the moving direction of the clamping block 111 is perpendicular to the extending direction of the free end of the packaging film, a guide plate 114 is arranged between the clamping driving piece 112 and the clamping block 111, a guide groove extending along the vertical direction is formed in the guide plate 114, one end of the clamping block 111 is arranged in the guide in a sliding manner, and the clamping driving piece 112 can drive the clamping block 111 to slide along the guide groove.

The driving assembly 2 comprises a horizontal driving unit 21 and a vertical driving unit 22, the vertical driving unit 22 is connected with the horizontal driving unit 21 in a sliding mode, the horizontal driving unit 21 is used for driving the clamping assembly 1 to move along the horizontal direction, the vertical driving unit 22 is used for driving the clamping assembly 1 to move along the vertical direction, and the horizontal driving unit 21 is movably connected with the vertical driving unit 22.

Specifically, the horizontal driving unit 21 includes a first driving member 211 and a guide rail 212, the guide rail 212 extends along the horizontal direction, the first driving member 211 is fixedly disposed at one end of the guide rail 212, the vertical driving unit 22 is movably disposed on the guide rail 212 through a slider, and the first driving member 211 can drive the vertical driving unit 22 to slide along the extending direction of the guide rail 212. In this embodiment, the first driving member 211 is a motor, and the guide rail 212 is a single-shaft robot.

The vertical driving unit 22 includes a second driving member 221 and a screw rod 222, the screw rod 222 extends in a vertical direction, one end of the screw rod 222 is connected with an output end of the second driving member 221, and the clamping assembly 1 is in threaded connection with the screw rod 222. The vertical driving unit 22 is provided with a slide rail 226, the slide rail 226 extends along a vertical direction, the clamping assembly 1 is slidably connected with the slide rail 226, and the second driving member 221 can drive the clamping assembly 1 to vertically slide along the slide rail 226 through the screw rod 222. In this embodiment, the second driving member 221 is a motor.

Referring to fig. 5, in order to sense the position of the vertical driving unit 22, the two ends of the single-axis robot 212 are provided with the first sensors 213, and the vertical driving unit 22 is provided with the first sensing pieces 223 corresponding to the first sensors 213. The first sensor 213 has a U-shaped groove, and when the vertical driving unit 22 slides to the end of the single-axis robot 212, the first sensing piece 223 slides over the first sensor 213, thereby judging that the vertical driving unit 22 slides in place.

In order to sense the position of the clamping assembly 1 in the vertical direction, one side of the screw rod 222 is provided with a plurality of second sensors 224, and the clamping assembly 1 is provided with second sensing pieces 225 corresponding to the second sensors 224. The second sensor 224 has a U-shaped groove, and when the clamping assembly 1 slides along the guide rail 226, the second sensing piece 225 slides over the second sensor 224, thereby determining the position of the clamping assembly 1.

For better understanding of the film drawing mechanism, the specific working principle is as follows: firstly, the upper heat-seal block 31 and the lower heat-seal block 32 of the hot-pressing assembly 3 clamp the packaging film to make the packaging film in a heat-seal compression state, the end of the packaging film extends out to a certain length towards the clamping assembly 1 to be clamped by the clamping unit 11, the initial state of the clamping unit 11 is a clamping state, then the clamping unit 11 moves downwards under the drive of the drive assembly 2 to the superposition position of the clamping surface and the hot-pressing surface, then the bidirectional equidistant opening clamp is carried out, then the packaging film is moved to the hot-pressing assembly 3 in the direction of the hot-pressing assembly 3, the packaging film is clamped by the clamping unit 11 and moves backwards, and after the fixed length is pulled out, the clamping unit 11 is opened to clamp the packaging film and slightly backwards ascends and then restores the clamping state.

In the description of the present invention, it is to be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims

1. The utility model provides a draw membrane mechanism, includes centre gripping subassembly (1) and hot pressing subassembly (3), centre gripping subassembly (1) activity sets up the one side in hot pressing subassembly (3), its characterized in that, centre gripping subassembly (1) includes a plurality of clamping unit (11), clamping unit (11) are including setting up clamp splice (111) relatively, when the clamping state, press from both sides tightly between clamp splice (111) and form the clamping face, open and press from both sides the in-process, two-way equidistance between clamp splice (111) is opened and is pressed from both sides, when drawing the membrane the clamping face of clamping unit (11) and the hot pressing face coincidence of hot pressing subassembly (3).

2. The film drawing mechanism according to claim 1, wherein the end of the clamping block (111) is provided with a clamping plate (113) for dispersing the stress of the packaging film, and the extension direction of the clamping plate (113) is orthogonal to the film drawing direction.

3. Film drawing mechanism according to claim 1, characterized in that the clamping assembly (1) comprises a fixed plate (12), and a plurality of clamping units (11) are arranged in a row along the extension direction of the fixed plate (12).

4. Film pulling mechanism according to claim 1, wherein the gripping unit (11) further comprises a gripping drive (112) for driving the gripping blocks (111) to open the grippers bi-directionally and equidistantly.

5. The film drawing mechanism according to claim 4, wherein a guide plate (114) is arranged between the clamping driving member (112) and the clamping block (111), and a guide groove is arranged on the guide plate (114).

6. The film drawing mechanism according to claim 1, further comprising a driving assembly (2), wherein the driving assembly (2) comprises a horizontal driving unit (21) for driving the clamping assembly (1) to move horizontally and a vertical driving unit (22) for driving the clamping assembly (1) to move vertically, and the horizontal driving unit (21) is movably connected with the vertical driving unit (22).

7. The film drawing mechanism according to claim 6, wherein the horizontal driving unit (21) comprises a first driving member (211) and a guide rail (212), the guide rail (212) extends along the horizontal direction, the first driving member (211) is arranged at one end of the guide rail (212), and the guide rail (212) is movably connected with the vertical driving unit (22) through a sliding block.

8. The film drawing mechanism according to claim 7, wherein both ends of the guide rail (212) are provided with first sensors (213) for sensing the positions of the vertical driving units (22), and the vertical driving units (22) are provided with first sensing pieces (223) corresponding to the first sensors (213).

9. The film drawing mechanism according to claim 6, wherein the vertical driving unit (22) comprises a second driving member (221) and a lead screw (222), the lead screw (222) extends in a vertical direction, and the second driving member (221) is in threaded connection with the clamping assembly (1) through the lead screw (222).

10. The film drawing mechanism according to claim 9, wherein one side of the screw rod (222) is provided with a plurality of second sensors (224) for sensing the positions of the clamping assemblies (1), and the clamping assemblies (1) are provided with second sensing sheets (225) corresponding to the second sensors (224).