Positioning mechanism used in PET film cutting device

Abstract

The utility model provides a positioning mechanism used in a PET film cutting device, and belongs to the technical field of machinery. The problem that in the prior art, applicability is poor is solved. The positioning mechanism used in the PET film cutting device is located on the lower portion of a base plate and comprises a first connecting rod, a second connecting rod, a bottom frame and a lead screw assembly, the first connecting rod is obliquely arranged between the base plate and the bottom frame, the upper end of the first connecting rod is hinged to the base plate, and the lower end of the first connecting rod is movably connected to the bottom frame. The inner end of the lead screw assembly is fixedly connected to the bottom frame, the outer end of the lead screw assembly is connected with the second connecting rod, and after the lead screw assembly acts, the lower end of the second connecting rod can move horizontally along the bottom frame. According to the mechanism, the applicability of the cutting device is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a positioning mechanism used in a PET film cutting device. Background Technology

[0002] The height of the PET film cutting device is fixed, but different operators have different heights. Therefore, the existing PET film cutting device cannot be adapted to operators of different heights, resulting in poor applicability. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a highly applicable and compact positioning mechanism for PET film cutting devices.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A positioning mechanism for a PET film cutting device, the PET film cutting device including a flat substrate, the upper part of the substrate having a working part for cutting PET film, characterized in that the positioning mechanism is located at the lower part of the substrate and includes a first connecting rod, a second connecting rod, a bottom frame and a lead screw assembly, the first connecting rod is inclined between the substrate and the bottom frame, the upper end of the first connecting rod is hinged to the substrate, the lower end of the first connecting rod is movably connected to the bottom frame, the second connecting rod is arranged laterally and movably connected to the lower end of the first connecting rod, the inner end of the lead screw assembly is fixed to the bottom frame, the outer end of the lead screw assembly is connected to the second connecting rod, and when the lead screw assembly moves, the lower end of the second connecting rod can be translated along the bottom frame.

[0006] The positioning mechanism in the PET film cutting device described above also includes an auxiliary rod. The inclination direction of the auxiliary rod is opposite to that of the connecting rod. The middle part of the auxiliary rod is hinged to the middle part of the connecting rod. The lower end of the auxiliary rod is hinged to the bottom frame, and the upper end of the auxiliary rod is movably connected to the substrate.

[0007] In the positioning mechanism of the PET film cutting device described above, there are two connecting rods and two auxiliary rods, and the two ends of the connecting rod are respectively movably connected to the lower ends of the two connecting rods.

[0008] In the positioning mechanism of the above-mentioned PET film cutting device, the lead screw assembly includes a lead screw, a connecting cylinder and a handle. The connecting cylinder passes through the connecting rod and the two are fixedly connected. The connecting cylinder is sleeved on the lead screw and the two are threadedly connected. The lead screw is axially fixed on the bottom frame and the outer end of the lead screw is fixedly connected to the handle.

[0009] In the positioning mechanism of the above-mentioned PET film cutting device, the bottom frame has several through positioning holes and also includes a positioning rod. The inner end of the positioning rod can be connected to any one of the positioning holes. Under the gravity of the substrate, the handle tends to abut against the lower part of the positioning rod.

[0010] In the positioning mechanism of the above-mentioned PET film cutting device, the handle has an annular recessed positioning groove, and the positioning rod can be inserted into the positioning groove.

[0011] In the positioning mechanism of the above-mentioned PET film cutting device, the positioning groove is located at the outer end of the handle, the inner end of the handle has a worm gear, and the inner end of the lead screw is fixedly connected to a worm and the worm meshes with the worm gear.

[0012] Compared with existing technologies, the positioning mechanism used in the PET film cutting device innovatively controls the swing of the control linkage to adjust the initial height of the control plate. After the height position of the plate changes, it can adapt to operators with different heights, thus making it highly applicable.

[0013] Meanwhile, the lead screw assembly is centrally located at the bottom frame, which does not take up too much space. Its structure is relatively compact and has high practical value. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the positioning mechanism used in a PET film cutting device.

[0015] In the figure, 1 is the base plate; 2 is the connecting rod 1; 3 is the connecting rod 2; 4 is the bottom frame; 4a is the positioning hole; 5 is the auxiliary rod; 6 is the lead screw; 7 is the connecting cylinder; 8 is the handle; 8a is the positioning groove; and 9 is the positioning rod. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] like Figure 1 As shown, the PET film cutting device includes a flat substrate 1, and the upper part of the substrate 1 has a working section for cutting PET film.

[0020] The positioning mechanism used in the PET film cutting device is located at the lower part of the substrate 1 and includes a first connecting rod 2, a second connecting rod 3, a bottom frame 4, and a lead screw assembly. The first connecting rod 2 is inclined between the substrate 1 and the bottom frame 4. The upper end of the first connecting rod 2 is hinged to the substrate 1, and the lower end of the first connecting rod 2 is movably connected to the bottom frame 4. The second connecting rod 3 is arranged laterally and is movably connected to the lower end of the first connecting rod 2. The inner end of the lead screw assembly is fixed to the bottom frame 4, and the outer end of the lead screw assembly is connected to the second connecting rod 3. When the lead screw assembly moves, the lower end of the second connecting rod 3 can be translated along the bottom frame 4.

[0021] It also includes an auxiliary rod 5, the tilt direction of which is opposite to that of the connecting rod 2. The middle part of the auxiliary rod 5 is hinged to the middle part of the connecting rod 2. The lower end of the auxiliary rod 5 is hinged to the bottom frame 4, and the upper end of the auxiliary rod 5 is movably connected to the base plate 1.

[0022] There are two connecting rods 1 and 2 and two auxiliary rods 5. The two ends of the connecting rod 2 are respectively movably connected to the lower ends of the two connecting rods 1 and 2.

[0023] The end of the connecting rod 2 is connected to a roller, and the inner side of the bottom frame has a guide groove, in which the roller is embedded.

[0024] This structure can reduce the frictional resistance during the swinging process of the connecting rod 2.

[0025] The lower end of the auxiliary rod is hinged to the bottom frame, and the connection technology between the upper end of the auxiliary rod and the substrate is the same as the technology where the lower end of the connecting rod is movably connected to the bottom frame. Therefore, it will not be described again in the embodiment.

[0026] After the lead screw assembly is activated, it causes the connecting rod 2 to swing. Under the action of the auxiliary rod 5, the base plate 1 can move stably up and down during the swinging process of the connecting rod 2. Of course, since the height difference of the operators is not significant, the range of motion of the base plate 1 in the vertical movement is also relatively small.

[0027] The lead screw assembly includes a lead screw 6, a connecting cylinder 7, and a handle 8. The connecting cylinder 7 passes through the connecting rod 3 and the two are fixedly connected. The connecting cylinder 7 is sleeved on the lead screw 6 and the two are threadedly connected. The lead screw 6 is axially fixed on the bottom frame 4 and the outer end of the lead screw 6 is fixedly connected to the handle 8.

[0028] The connecting cylinder 7 can make contact with the lead screw 6 over a large area.

[0029] Handle 8 can stably drive the lead screw 6 to rotate.

[0030] The bottom frame 4 has several through positioning holes 4a and also includes a positioning rod 9. The inner end of the positioning rod 9 can be connected to any one of the positioning holes 4a. Under the gravity of the substrate 1, the handle 8 tends to abut against the lower part of the positioning rod 9.

[0031] After the positioning rod 9 is connected to different positioning holes 4a, the height position of the positioning rod 9 changes, thereby positioning the handle 8 which rotates for different numbers of turns, and ultimately changing the initial height of the substrate 1.

[0032] The handle 8 has an annular recessed positioning groove 8a, and the positioning rod 9 can be inserted into the positioning groove 8a.

[0033] After the positioning rod 9 is embedded in the positioning groove 8a, it can stably position the handle 8.

[0034] The aforementioned positioning groove 8a is located at the outer end of the handle 8, the inner end of the handle 8 has a worm gear, and the inner end of the aforementioned lead screw is fixedly connected to a worm and the worm meshes with the worm gear.

[0035] The handle 8 can stably drive the lead screw 6 to rotate during the process of turning.

[0036] The positioning mechanism used in this PET film cutting device innovatively controls the swing of the connecting rod to adjust the initial height of the control plate. After the height of the plate changes, it can adapt to workers of different heights, thus making it highly adaptable.

[0037] Meanwhile, the lead screw assembly is centrally located at the bottom frame, which does not take up too much space. Its structure is relatively compact and has high practical value.

[0038] The technical features of the above-described embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A positioning mechanism for use in a PET film cutting apparatus, the PET film cutting apparatus including a base plate in a flat plate shape, the base plate having a working portion for cutting a PET film on an upper portion thereof, characterized in that, The positioning mechanism is located below the base plate and comprises link one, link two, bottom frame and screw rod assembly, the link one is inclined between the base plate and the bottom frame, the upper end of the link one is hinged to the base plate, the lower end of the link one is movably connected to the bottom frame, the link two is transversely arranged and movably connected to the lower end of the link one, the inner end of the screw rod assembly is fixed to the bottom frame, and the outer end of the screw rod assembly is connected to the link two, and the lower end of the link two can be translated along the bottom frame after the screw rod assembly is actuated; The auxiliary rod is further included, the inclination direction of the auxiliary rod is opposite to that of the link one, the middle part of the auxiliary rod is hinged to the middle part of the link one, the lower end of the auxiliary rod is hinged to the bottom frame, and the upper end of the auxiliary rod is movably connected to the base plate; The number of the link one and the auxiliary rod is two, and the two ends of the link two are movably connected to the lower ends of the two links one respectively; The screw rod assembly comprises a screw rod, a connecting barrel and a handle, the connecting barrel is arranged on the link two and fixedly connected to the link two, the connecting barrel is sleeved on the screw rod and threadedly connected to the screw rod, the screw rod is axially fixed to the bottom frame, and the outer end of the screw rod is fixedly connected to the handle; The bottom frame is provided with a plurality of through positioning holes, and a positioning rod is further included, the inner end of the positioning rod can be connected to any one of the positioning holes, and the handle has a tendency to abut against the lower part of the positioning rod under the gravity of the base plate; The handle is provided with an annular recessed positioning groove, and the positioning rod can be embedded in the positioning groove; The positioning groove is located at the outer end of the handle, the inner end of the handle is provided with a worm wheel, the inner end of the screw rod is fixedly connected with a worm gear, and the worm gear is engaged with the worm wheel.

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