A bidirectional stretching mechanism

Abstract

The utility model discloses a bidirectional stretching mechanism, which is used for stretching a film longitudinally and transversely; the bidirectional stretching mechanism comprises: a stretching platform for placing the film, the film being placed on the upper surface of the stretching platform; a plurality of clamping claws evenly distributed in a central rectangle of the stretching platform, the clamping claws being used for clamping the film; a push-pull mechanism for moving the clamping claws back and forth; a trigger mechanism for opening or closing the clamping claws; a plurality of station slots are provided along the edge of the stretching platform, the positions of the clamping claws correspond to the positions of the station slots, the stretching mechanism is used for extending the clamping portion of the clamping claw into the station slots or making the clamping claws leave the station slots; when the film is placed on the surface of the stretching platform, the edge of the film corresponds to the position of the station slots.

Description

Technical Field

[0001] The utility model relates to the technical field of film production equipment, in particular to a bidirectional stretching mechanism. Background Art

[0002] In the process of film production, the film will be sliced ​​after forming. In order to make it more elastic and tough, it is generally stretched. However, in some folk workshops, manpower is still needed to use tools to stretch it, which is time-consuming and labor-intensive. In addition, the existing stretching mechanism has a complex structure and is difficult to maintain. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned problem and provide a bidirectional stretching mechanism.

[0004] The technical solution of the utility model is achieved in this way:

[0005] The utility model provides a bidirectional stretching mechanism, which is used to stretch a film longitudinally and transversely;

[0006] The bidirectional stretching mechanism comprises:

[0007] A stretching table, used for placing the film, the film is placed on the upper surface of the stretching table;

[0008] A plurality of clamping claws are evenly distributed in the central rectangle of the stretching table, and the clamping claws are used to clamp the film;

[0009] A push-pull mechanism for moving the clamping claw forward and backward;

[0010] A trigger mechanism for opening or closing the clamping jaws;

[0011] A plurality of station slots are provided along the edge of the stretching platform, the positions of the clamping claws correspond to the positions of the station slots, and the stretching mechanism is used to extend the clamping portion of the clamping claws into the station slots or to make the clamping claws leave the station slots;

[0012] When the film is placed on the surface of the stretching table, the edge of the film corresponds to the position of the work station slot.

[0013] The advantages or beneficial effects of the above technical solution include at least:

[0014] The bidirectional stretching mechanism of the utility model can perform bidirectional stretching on the produced film, thereby improving the traditional transverse stretching and longitudinal stretching, so that the film can quickly reach the required thickness and size, effectively improving the production efficiency, and the equipment has a simple structure, is easy to maintain and clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings show exemplary implementations of the present invention and, together with the description thereof, are used to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are included in and constitute a part of this specification.

[0016] Figure 1 A schematic diagram of the structure of an embodiment of the utility model before stretching is shown;

[0017] Figure 2 A schematic diagram showing a film according to an embodiment of the utility model placed on a stretching table;

[0018] Figure 3 A schematic diagram showing a clamping claw clamping a film according to an embodiment of the utility model is shown;

[0019] Figure 4 A schematic diagram showing the structure of a stretching table according to an embodiment of the utility model is shown;

[0020] Figure 5 A schematic diagram showing a trigger mechanism of an embodiment of the utility model is shown;

[0021] Figure 6 A schematic diagram showing the middle portion of an embodiment of the utility model moving downward;

[0022] Reference numerals: 10, stretching table; 11, station slot; 12, edge portion; 121, depression; 13, middle portion; 131, projection; 14, second cylinder; 20, clamping claw; 21, sliding guide block; 30, push-pull mechanism; 31, stretching rod; 32, first cylinder; 40, trigger mechanism; 41, electric controller; 42, electric wire; 50, support table; 51, sliding slot; DETAILED DESCRIPTION

[0023] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] It should be understood that the term "including" and its variations used in this article are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in the utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0026] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0027] The names of the messages or information exchanged between multiple devices in the implementation manner of the present utility model are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0028] like Figure 1 and Figure 2 As shown, a bidirectional stretching mechanism is used to stretch a film longitudinally and transversely; specifically, the bidirectional stretching mechanism includes: a stretching platform 10 for placing a film, and the film is placed on the upper surface of the stretching platform 10; a plurality of clamping claws 20 are evenly distributed in the central rectangle of the stretching platform 10, and the clamping claws 20 are used to clamp the film; a push-pull mechanism 30 is used to move the clamping claws 20 back and forth; a trigger mechanism 40 is used to open or close the clamping claws 20, and further, a plurality of station slots 11 are opened along the edge of the stretching platform 10, and the position of the clamping claws 20 corresponds to the position of the station slots 11, and the stretching mechanism is used to extend the clamping portion of the clamping claws 20 into the station slots 11 or to make When the clamping claw 20 leaves the work station groove 11 and the film is placed on the surface of the stretching table 10, the edge of the film corresponds to the position of the work station groove 11; when in use, the clamping claw 20 is first moved to a position away from the work station groove 11 by the push-pull mechanism 30, and then the Harima is placed on the stretching table 10. At this time, the trigger mechanism 40 opens the clamping claw 20 again, and the clamping claw 20 is moved forward by the push-pull mechanism 30 so that the clamping end of the clamping claw 20 extends into the film, and then the clamping claw 20 is closed by the trigger mechanism 40 to clamp the film, and then the multiple clamping claws 20 are synchronously moved away from the center of the film by the push-pull mechanism 30 to complete the longitudinal and transverse stretching of the film.

[0029] Based on the above structure, the push-pull mechanism 30 includes: a stretching rod 31, which is arranged on the four sides of the stretching platform 10, and the stretching rod 31 is fixedly connected to the rear side of the corresponding clamping claw 20; a first cylinder 32, which is used to stretch the stretching rod 31 forward and backward. The stretching rod 31 can be moved forward and backward by the first cylinder 32, so that the stretching rod 31 can synchronously drive multiple clamping claws 20 to move.

[0030] Based on the above structure, Figure 3 and Figure 6 As shown, the trigger mechanism 40 includes: an electric controller 41 installed at the diagonal of the stretching table 10; an electric wire 42 for connecting the electric controller 41 to the clamping claw 20; the electric controller 41 controls the clamping claw 20 to open and close through the electric wire 42 to achieve opening and closing control of multiple clamping claws 20.

[0031] Furthermore, the bidirectional stretching mechanism further includes: a support platform 50, a first cylinder 32 is installed on the support platform 50, the clamping claw 20 is movably installed on the support platform 50 to realize the movement of the clamping claw 20, and the clamping claw 20 is provided with a sliding guide block 21, and a sliding groove 51 is opened on the support platform 50; the sliding guide block 21 is movably embedded in the sliding groove 51, which can make the movement of the clamping claw 20 more stable and also ensure its moving direction.

[0032] As a further improvement of the above structure, Figure 4 As shown, the stretching table 10 includes: an edge portion 12, which is fixedly connected to the support table 50; a middle portion 13, which is located in the middle of the edge portion 12, and the film is placed on the upper surface of the middle portion 13 to achieve structural separation; and the station slot 11 is opened on the edge portion 12 and extends to the middle portion 13; the stretching mechanism further includes a second cylinder 14, which is used to move the middle portion 13 up and down. After the film is stretched, the second cylinder 14 moves the middle portion 13 downward, so that the stretched film moves downward to the outside of the stretching mechanism, which is convenient for the user to take. Of course, the existing technology such as a manipulator can also be used to realize the material return function, such as Figure 5 As shown, the edge portion 12 has a recess 121, and the edge of the middle portion 13 has a protrusion 131 that fits with the recess 121, which can play a role in positioning the edge portion 12 and the middle, and improve the accuracy when the middle portion 13 is flush with the edge portion 12.

[0033] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0034] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present invention.

Claims

1. A bidirectional stretching mechanism, characterized in that: The biaxial stretching mechanism is used to stretch the film longitudinally and transversely; The bidirectional stretching mechanism comprises: A stretching table (10) for placing the film, the film being placed on the upper surface of the stretching table (10); A plurality of clamping claws (20) are evenly distributed in a central rectangle of the stretching platform (10), and the clamping claws (20) are used to clamp the film; A push-pull mechanism (30) for moving the clamping claw (20) forward and backward; A trigger mechanism (40) for opening or closing the clamping claw (20); A plurality of workstation slots (11) are provided along the edge of the stretching platform (10), the position of the clamping claw (20) corresponds to the position of the workstation slot (11), and the stretching mechanism is used to extend the clamping portion of the clamping claw (20) into the workstation slot (11) or to make the clamping claw (20) leave the workstation slot (11); When the film is placed on the surface of the stretching platform (10), the edge of the film corresponds to the position of the workstation groove (11).

2. The biaxial stretching mechanism according to claim 1, characterized in that: The push-pull mechanism (30) comprises: A stretching rod (31) is disposed on four sides of the stretching platform (10), and the stretching rod (31) is fixedly connected to the rear side of the corresponding clamping claw (20); The first cylinder (32) is used for stretching the front and rear stretching rods (31).

3. The biaxial stretching mechanism according to claim 2, characterized in that: The trigger mechanism (40) comprises: An electric controller (41) is installed at a diagonal position of the stretching platform (10); An electric wire (42) for connecting the electric controller (41) to the clamping claw (20); The electric controller (41) controls the clamping claw (20) to open and close via the electric wire (42).

4. The biaxial stretching mechanism according to claim 3, characterized in that: The biaxial stretching mechanism further comprises: A support platform (50), the first cylinder (32) is mounted on the support platform (50), and the clamping claw (20) is movably mounted on the support platform (50).

5. The biaxial stretching mechanism according to claim 4, characterized in that: The stretching platform (10) comprises: An edge portion (12) is fixedly connected to the support platform (50); A middle portion (13) is located in the middle of the edge portion (12), and the film is placed on the upper surface of the middle portion (13); The workstation groove (11) is opened on the edge portion (12) and extends to the middle portion (13); The stretching mechanism further comprises a second cylinder (14), and the second cylinder (14) is used to move the middle part (13) up and down.

6. The biaxial stretching mechanism according to claim 4, characterized in that: The clamping claw (20) is provided with a sliding guide block (21), and the support platform (50) is provided with a sliding groove (51); The sliding guide block (21) is movably embedded in the sliding groove (51).

7. The biaxial stretching mechanism according to claim 5, characterized in that: The edge portion (12) has a depression (121), and the edge of the middle portion (13) has a protrusion (131) that fits with the depression (121).

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