CN112193491A

CN112193491A - Pad pasting mechanism of plastic subassembly

Info

Publication number: CN112193491A
Application number: CN202011043310.3A
Authority: CN
Inventors: 时运
Original assignee: Individual
Current assignee: Shenzhen Weiye Adhesive Products Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-01-08
Anticipated expiration: 2040-09-28
Also published as: CN112193491B

Abstract

The invention relates to a film sticking mechanism of a plastic component. The pad pasting mechanism of plastic subassembly includes locating component, draw the subassembly, cutting element and pad pasting subassembly, locating component includes positioning track and positioning baffle, positioning baffle installs in positioning track's middle part, be used for stopping location plastic subassembly, draw the subassembly to install in positioning track, be used for drawing the top that the membrane took to the plastic subassembly, cutting component includes L shape grillage, first cutting structure and second cutting structure, L shape grillage includes the mounting panel and erects the roof beam, two are erect the roof beam and are stretched the bottom of stretching in the mounting panel and be fixed in respectively on the orbital relative both sides wall of positioning, the mounting panel is located the plastic subassembly directly over, first cutting structure and second cutting structure are installed respectively in the relative both sides of mounting panel. The pad pasting fastness of the pad pasting mechanism of plastic subassembly is better.

Description

Pad pasting mechanism of plastic subassembly

Technical Field

The invention relates to a film sticking mechanism of a plastic component.

Background

With the development of electronic technology, electronic products are also increasing. Most of the housings or middle frames of electronic products are plastic housings, so that a large number of plastic components are filled in the electronic products, and in order to provide waterproof/insulating/sealing functions, the plastic components need to be covered with films. For example, after some plastic components are pasted with a film, the side edge of the film facing the outside of the electronic product housing is easy to tilt in the subsequent assembly process, which affects the firmness of the pasted film.

Disclosure of Invention

Therefore, a need exists for a film attaching mechanism for a plastic component that is relatively strong.

A film sticking mechanism of a plastic component comprises a positioning component, a traction component, a cutting component and a film sticking component, wherein the positioning component comprises a positioning track and a positioning baffle plate, the positioning baffle plate is arranged in the middle of the positioning track and used for blocking and positioning the plastic component, the traction component is arranged in the positioning track and used for drawing a film belt to the upper side of the plastic component, the cutting component comprises an L-shaped plate frame, a first cutting structure and a second cutting structure, the L-shaped plate frame comprises a mounting plate and upright beams, the two upright beams protrude out of the bottom of the mounting plate and are respectively fixed on two opposite side walls of the positioning track, the mounting plate is positioned right above the plastic component, the first cutting structure and the second cutting structure are respectively arranged on two opposite sides of the mounting plate, the first cutting structure comprises a first air cylinder and a first cutting knife, the first air cylinder is arranged on the mounting plate, two opposite ends of the first cutting knife are respectively inserted on, the top central authorities of first cutting knife connect on the output shaft of first cylinder, the second cutting structure includes the second cylinder, connecting plate and second cutting knife, the second cylinder is installed in the one side that the first cylinder was kept away from to the mounting panel, the connecting plate is located the below of mounting panel and its top central authorities fixed connection on the output shaft of second cylinder, the downside edge of connecting plate is equipped with horizontal board towards the protruding of first cutting knife, one side that the connecting plate was kept away from to horizontal board is formed with the alignment edge, the second cutting knife is installed in the alignment edge of horizontal board, be formed with between the top of second cutting knife and the lateral wall of plastic subassembly and turn over a clearance, the cutting edge slope downwardly extending of second cutting knife, and the cutting edge side of second cutting knife is kept away from first cutting knife along vertical decurrent direction gradually.

In one embodiment, the two vertical beams are both provided with guide grooves, the two opposite ends of the top of the first cutting knife are respectively provided with a rectangular guide block, and the two rectangular guide blocks are respectively inserted into the guide grooves of the two vertical beams in a sliding manner.

In one embodiment, the top surface of the plastic component includes two oppositely disposed cutting edges, the first cutting blade is aligned with one of the cutting edges, and the aligned edge of the transverse plate is positioned diagonally above the other cutting edge.

In one embodiment, a film roll section and a traction section are formed on the positioning track, the film roll section and the traction section are respectively located on two opposite sides of the positioning baffle, the film roll section is used for installing a film roll, and the traction assembly is installed on the traction section.

In one embodiment, the traction assembly comprises a pivot, a notch frame, a traction cylinder, a guide frame and two clamping finger cylinders, the pivot is mounted on two opposite side walls of the traction section, the middle part of the notch frame is rotatably mounted in the middle part of the pivot, the rear end of the traction cylinder is rotatably mounted at the bottom of the traction section, an output shaft of the traction cylinder is rotatably connected with the bottom end of the notch frame, the guide frame is movably connected to the notch frame, and the two clamping finger cylinders are mounted on the guide frame.

In one embodiment, the two vertical beams are positioned on one side of the positioning baffle far away from the traction section, two reinforcing frames are convexly arranged on two opposite side walls of the traction section, and a guide square column is fixedly mounted on the two reinforcing frames on each side together.

In one of them embodiment, the leading truck includes two direction diaphragms, one wears to establish axle and a square sleeve, and two direction diaphragms are parallel to each other and set up, and the relative both ends of every direction diaphragm are installed on two direction square columns respectively with sliding, wear to establish the middle part of axle and fixedly wear to locate the middle part of two direction diaphragms.

In one embodiment, the two opposite ends of the square sleeve are respectively and slidably supported on the two guide square columns, the middle of the square sleeve is fixed at the end part of the penetrating shaft, one end of the penetrating shaft, which is far away from the square sleeve, is connected to the notch frame, and the two clamping finger cylinders are respectively installed at the two opposite ends of the square sleeve.

In one of them embodiment, seted up the bar notch on the notch frame, wear to establish the fixed two circular (holding) chucks that are provided with of one end that the axle kept away from the square sheath, wear to establish the axle and wear to locate in the bar notch, circular (holding) chuck presss from both sides the relative both sides of locating the notch frame respectively.

In one embodiment, the distance between the two circular chucks is greater than the thickness of the notch frame to allow the notch frame to rotate relative to the through shaft, the length of the strip-shaped notch is equal to that of the through shaft, and the distance between the top end of the notch frame and the pivot is greater than the distance between the bottom end of the notch frame and the pivot.

When the film is pasted, the film belt is firstly pulled to move forwards by the aid of the traction assembly until the film belt covers the top surface of the plastic component and tightens the film belt, then the first air cylinder and the second air cylinder are started simultaneously, and the first cutting knife and the second cutting knife cut the film belt simultaneously, so that a film sheet with two separated ends and covering the plastic component is formed. Because a turnover gap is formed between the top of the second cutting knife and the side wall of the plastic component, and the side surface of the cutting edge of the second cutting knife is gradually far away from the first cutting knife along the vertical downward direction, when the second cutting knife cuts, one side edge of the membrane can protrude to the outer side of the top surface of the plastic component, namely a redundant part is formed, namely the edge of the membrane specially exceeds the top surface of the plastic component. Afterwards, the top of the second cutting knife can enable the redundant part of the diaphragm to be folded onto the side wall of the plastic component, so that the edge of the diaphragm is folded and fixed, even if one side of the redundant part of the diaphragm faces the outer side of the shell of the electronic product, the redundant part of the diaphragm can be well protected in the subsequent assembly process, the redundant part of the diaphragm cannot be easily separated or separated from the plastic component due to stress, and the firmness of the film pasting is improved.

Drawings

Fig. 1 is a perspective view of a film sticking mechanism of a plastic component according to an embodiment.

Fig. 2 is a perspective view of a film sticking mechanism of a plastic component according to another embodiment.

FIG. 3 is a side view of a film attachment mechanism for a plastic component according to one embodiment.

Fig. 4 is a partial enlarged view of fig. 3 at a.

FIG. 5 is a schematic diagram of a cutting process according to an embodiment.

Fig. 6 is a schematic diagram of a cutting process according to another embodiment.

Detailed Description

Referring to fig. 1 to 6, a film sticking mechanism for a plastic component includes a positioning component 10, a pulling component 20, a cutting component 30 and a film sticking component 40, the positioning component 10 includes a positioning rail 12 and a positioning baffle 15, and the positioning baffle 15 is installed in the middle of the positioning rail 12 for stopping and positioning the plastic component 200. For example, the plastic component 200 is rectangular in shape, the pulling component 20 is installed in the positioning rail 12 and is used for pulling the film strip 100 to the upper side of the plastic component 200, the cutting component 30 includes an L-shaped plate frame 31, a first cutting structure 32 and a second cutting structure 33, the L-shaped plate frame 31 includes a mounting plate 311 and two upright beams 313, the two upright beams 313 protrude from the bottom of the mounting plate 311 and are respectively fixed on two opposite side walls of the positioning rail 12, the mounting plate 311 is located right above the plastic component 200, the first cutting structure 32 and the second cutting structure 33 are respectively installed on two opposite sides of the mounting plate 311, the first cutting structure 32 includes a first air cylinder 321 and a first cutting knife 322, the first air cylinder 321 is installed on the mounting plate 311, two opposite ends of the first cutting knife 322 are respectively inserted on the two upright beams 313 in a sliding manner, the top center of the first cutting knife 322 is connected to an output shaft of the first air cylinder 321, the second cutting structure 33 includes a second cylinder 331, a connecting plate 332 and a second cutting knife 333, the second cylinder 331 is installed on one side of the mounting plate 311 far away from the first cylinder 321, the connecting plate 332 is located below the mounting plate 311 and the top center thereof is fixedly connected to the output shaft of the second cylinder 331, a transverse plate 334 is convexly arranged on the lower side edge of the connecting plate 332 towards the first cutting knife 322, an alignment edge is formed on one side of the transverse plate 334 far away from the connecting plate 332, the second cutting knife 333 is installed on the alignment edge of the transverse plate 334, a turnover gap 335 is formed between the top of the second cutting knife 333 and the side wall of the plastic component 200, the cutting edge of the second cutting knife 333 extends obliquely downwards, and the side surface of the cutting edge of the second cutting knife 333 is gradually far away from the first cutting knife 322

When the film is attached, the film strip 100 is pulled by the pulling assembly 20 to move forward until the film strip 100 covers the top surface of the plastic component 200 and tightens the film strip 100, then the first air cylinder 321 and the second air cylinder 331 are started simultaneously, and the first cutting knife 322 and the second cutting knife 333 cut the film strip 100 simultaneously, so as to form a film sheet with two separated ends and covering the plastic component 200. Because the folding gap 335 is formed between the top of the second cutter 333 and the sidewall of the plastic component 200, and the side surface of the second cutter 333 is gradually away from the first cutter 322 along the vertical downward direction, when the second cutter 333 cuts, one side of the membrane can protrude to the outside of the top surface of the plastic component 200, i.e. the redundant portion 105 is formed, i.e. the edge of the membrane is intentionally made to exceed the top surface of the plastic component 200. Thereafter, the side of the second cutter 333 can be used for guiding, and the top of the second cutter enables the redundant part 105 of the membrane to be folded and folded onto the side wall of the plastic component 200, so as to complete the folding and fixing of the membrane edge, therefore, even if one side of the redundant part 105 of the membrane faces the outer side of the electronic product shell, the redundant part 105 of the membrane can be well protected in the subsequent assembly process, and can not be easily separated or separated from the plastic component 200 due to stress, and the firmness of the film pasting is improved.

For example, in order to facilitate the sliding installation of the first cutting knife 322, guide grooves are formed on both the upright beams 313, rectangular guide blocks are respectively formed at opposite ends of the top of the first cutting knife 322, and the two rectangular guide blocks are respectively slidably inserted into the guide grooves of the two upright beams 313. The top surface of the plastic component 200 includes two oppositely disposed cutting edges, one of which is aligned with the first cutter 322 and the other of which is obliquely above the aligned edge of the transverse plate 334. The positioning rail 12 is formed with a film roll section 124 and a pulling section 126, the film roll section 124 and the pulling section 126 are respectively located at two opposite sides of the positioning baffle 15, the film roll section 124 is used for installing the film roll, and the pulling assembly 20 is installed at the pulling section 126. By providing two upright beams 313 and forming guide grooves, it is possible to guide opposite ends of the first cutting blade 322 while supporting the mounting plate 311 with the upright beams 313.

For example, in order to clamp one end of the film strip 100 and perform traction, the traction assembly 20 includes a pivot 21, a notch frame 22, a traction cylinder 23, a guide frame 24 and two finger clamping cylinders 25, the pivot 21 is installed on two opposite side walls of the traction section 126, the middle part of the notch frame 22 is rotatably installed on the middle part of the pivot 21, the rear end of the traction cylinder 23 is rotatably installed on the bottom of the traction section 126, the output shaft of the traction cylinder 23 is rotatably connected with the bottom end of the notch frame 22, the guide frame 24 is movably connected to the notch frame 22, and the two finger clamping cylinders 25 are installed on the guide frame 24. For example, two upright beams 313 are positioned on the side of the positioning flap 15 away from the pulling section 126, two reinforcing frames 1265 are protruded on two opposite side walls of the pulling section 126, and a guide square column 1268 is fixedly mounted on the two reinforcing frames 1265 on each side. The guide frame 24 includes two guide transverse plates 241, a through shaft 243 and a square sleeve 244, the two guide transverse plates 241 are parallel to each other, opposite ends of each guide transverse plate 241 are slidably mounted on the two guide square columns 1268, and the middle of the through shaft 243 is fixedly disposed through the middle of the two guide transverse plates 241. The opposite ends of the square sleeve 244 are respectively supported on the two guide square columns 1268 in a sliding manner, the middle part of the square sleeve 244 is fixed at the end part of the penetrating shaft 243, one end of the penetrating shaft 243 far away from the square sleeve 244 is connected to the notch frame 22, and the two finger clamping cylinders 25 are respectively installed at the opposite ends of the square sleeve 244. When the film tape 100 needs to be pulled, the output shaft of the pulling cylinder 23 is shortened, so that the notch frame 22 is forced to rotate around the pivot 21, then the two finger clamping cylinders 25 are driven to move forwards through the guide frame 24, then the two finger clamping cylinders 25 clamp one end of the film tape 100, then the pulling cylinder 23 contracts, the notch frame 22 rotates reversely, and therefore the film tape 100 is pulled to move forwards until the film tape 100 completely covers the plastic component 200, and the film tape 100 is tightened to be cut subsequently.

For example, in order to facilitate the traction cylinder 23 to drive the guide frame 24 to move back and forth, the notch frame 22 is provided with a strip-shaped notch 221, one end of the penetrating shaft 243 far away from the square sleeve 244 is fixedly provided with two circular chucks 245, the penetrating shaft 243 penetrates through the strip-shaped notch 221, and the circular chucks 245 are respectively clamped on two opposite sides of the notch frame 22. The distance between the two circular chucks 245 is greater than the thickness of the notch frame 22 to allow the notch frame 22 to rotate relative to the through shaft 243, the length of the strip-shaped notch 221 is equal to the length of the through shaft 243, and the distance between the top end of the notch frame 22 and the pivot 21 is greater than the distance between the bottom end of the notch frame 22 and the pivot 21. Through making the distance between the top of notch frame 22 and the pivot 21 be greater than the distance between the bottom of notch frame 22 and the pivot 21, and then draw the short distance back-and-forth movement of cylinder 23, can cause the back-and-forth movement of the longer distance of leading truck 24, and the setting of bar notch 221 can be so that wear to establish axle 243 and need not receive the upper and lower separation of notch frame 22 to need not the rotation and can be straight going.

For example, it is particularly important that, in order to keep the two sides of the diaphragm uniformly stressed without being biased to one side of the second cutter 333, a pressing plate (not shown) is vertically disposed on the side surface of the first cutter 322, the pressing plate is slidably disposed on the side surface of the first cutter 322, a compression spring is disposed on the upper surface of the pressing plate, the top of the compression spring is fixed on the top of the first cutter 322, and the pressing plate is used for pressing the diaphragm against the top surface of the plastic component 200 to prevent the diaphragm from sliding towards the other side.

In order to facilitate the adhesion of the side edge of the fixed membrane, for example, the side edge is the side edge facing the electronic product housing, so that the side edge facing the electronic product housing is easily scratched and separated in the subsequent assembly process, in order to avoid this, a stop plate 330 is protruded laterally on the connecting plate 332, the stop plate 330 is located above the transverse plate 334, and the width of the stop plate 330 is smaller than the width of the transverse plate 334.

The film sticking mechanism of the plastic component further comprises a hot-stamping component 40, the hot-stamping component 40 comprises an L-shaped rod 41, a stop cylinder 42, a supporting plate 43, a guide sleeve frame 44 and a turnover hot-stamping plate 45, the L-shaped rod 41 is installed on the side wall of the positioning rail 12, the stop cylinder 42 is installed above the L-shaped rod 41, and the axial direction of an output shaft of the stop cylinder 42 is perpendicular to the sliding direction of the penetrating shaft 243. The abutting plate 43 is connected to the output shaft of the stopping cylinder 42, the abutting plate 43 can extend to be located above the plastic component 200, an inclined abutting surface 438 is formed on one side of the abutting plate 43 facing the connecting plate 332, and the distance between the inclined abutting surface 438 and the side surface of the first cutting knife 322 is gradually reduced along the direction away from the stopping cylinder 42. For example, the width of the abutting plate 43 is gradually reduced in a direction away from the stopper cylinder 42. The guide frame 44 is slidably sleeved on the connecting plate 332, a plurality of pressing springs are disposed on the guide frame 44, and top ends of the plurality of pressing springs are connected to the stop plate 330. The one side of uide bushing frame 44 towards first cutting knife 322 is protruding to be equipped with the arm-tie 446, and the upset is scalded and is established one side of board 45 and be formed with the attenuate edge, and the attenuate edge connects in the edge of arm-tie 446 through the torsional spring with rotating, and the torsional spring is used for making the upset to scald and establishes board 45 and keep keeping the parallel and level with arm-tie 446. The upper pulling plate 446 is provided with a power supply, the overturning and ironing board 45 is a resistance heating board and is electrically connected with the power supply, and the distance between the side surface of the upper pulling plate 446, which is far away from the connecting plate 332, and the side surface of the plastic component 200 is equal to the thickness of the overturning and ironing board 45 (the thickness of the rest part after the thinning edge is removed).

For example, when cutting and ironing the redundant part 105 of the diaphragm, the second cutting knife 333 is used to cut the diaphragm so that one side of the diaphragm protrudes to the outside of the top surface of the plastic component 200 to form the redundant part 105, the top of the second cutting knife 333 moves downwards to force the redundant part 105 of the diaphragm to be turned over to the side wall of the plastic component 200, the turning ironing plate 45 is used to drive the guide sleeve frame 44 to move upwards under the supporting of the top surface of the plastic component 200 until the guide sleeve frame 44 supports against the bottom surface of the stop plate 330, so as to force the turning ironing plate 45 to turn over relative to the upper pulling plate 446, the turning ironing plate 45 is also used to generate heat under the action of the power supply and move downwards along with the guide sleeve frame 44 to lay flat and iron the redundant part 105 of the diaphragm, so that the redundant part 105 of the diaphragm is fixed on the side wall of the plastic component 200 until the turning ironing plate 45 moves upwards close to the top surface of the plastic component 200 away from the edge of the upper, and a portion protruding above the top surface of the plastic member 200 is reserved. At this time, the ironing and fixing operation is finished. After the ironing operation is finished, the power supply is stopped so that the reverse ironing board 45 is rapidly cooled. Thereafter, the stopping cylinder 42 is used to drive the abutting plate 43 to move forward to above the top surface of the plastic component 200, and the inclined abutting surface 438 abuts against the reverse ironing plate 45 to turn over toward the connecting plate 332, so that the reverse ironing plate 45 is separated from the diaphragm of the sidewall of the plastic component 200, i.e. separated from the redundant portion 105 of the diaphragm. At this time, the included angle between the turning ironing plate 45 and the upper pulling plate 446 is smaller than 90 degrees. Thereafter, the first cylinder 321 and the second cylinder 331 pull the first cutter 322 and the second cutter 333 upward, so that the first cutter 322 is separated from the plastic component 200, and the second cutter 333 and the flip ironing board 45 thereon can also move upward to separate from the plastic component 200 without contacting the redundant portion 105. Thereafter, the stopping cylinder 42 drives the abutting plate 43 to retract, and the reverse ironing plate 45 is separated from the abutting plate 43 and then returns to the original position under the action of the torsion spring and the plurality of the compression springs. The width of the turnover gap 335 is equal to the thickness of the membrane.

By providing the ironing assembly 40, on one hand, the redundant portion 105 of the membrane can be laid flat more conveniently, and the membrane can be ironed so that the redundant portion 105 of the membrane is fixed on the side wall of the plastic assembly 200. On the other hand, the stopping cylinder 42 drives the abutting plate 43 to abut against the overturning and ironing plate 45 to be overturned and separated from the redundant part 105 of the membrane, so that the ironing assembly 40 can avoid the redundant part 105 of the membrane in the returning process, the redundant part 105 of the membrane which is just adhered and fixed cannot be scraped, and the membrane is prevented from being separated from the plastic assembly 200. Because the gap is formed between the thinning edge and the side wall of the plastic component 200, and the second cutting knife 333 does not generate scraping due to the existence of the folding gap 335, the firmness of the film pasting is improved. Thinning the edges can avoid the bottom of the flip-up plate from scraping the redundant portion of the diaphragm.

Claims

1. A film sticking mechanism of a plastic component is characterized by comprising a positioning component, a traction component, a cutting component and a film sticking component, wherein the positioning component comprises a positioning track and a positioning baffle plate, the positioning baffle plate is arranged in the middle of the positioning track and used for stopping and positioning the plastic component, the traction component is arranged in the positioning track and used for drawing a film belt to the upper side of the plastic component, the cutting component comprises an L-shaped plate frame, a first cutting structure and a second cutting structure, the L-shaped plate frame comprises a mounting plate and upright beams, the two upright beams protrude out of the bottom of the mounting plate and are respectively fixed on two opposite side walls of the positioning track, the mounting plate is positioned right above the plastic component, the first cutting structure and the second cutting structure are respectively arranged on two opposite sides of the mounting plate, the first cutting structure comprises a first air cylinder and a first cutting knife, the first air cylinder is arranged on the mounting plate, two opposite ends of the first cutting knife are respectively inserted on the, the top central authorities of first cutting knife connect on the output shaft of first cylinder, the second cutting structure includes the second cylinder, connecting plate and second cutting knife, the second cylinder is installed in the one side that the first cylinder was kept away from to the mounting panel, the connecting plate is located the below of mounting panel and its top central authorities fixed connection on the output shaft of second cylinder, the downside edge of connecting plate is equipped with horizontal board towards the protruding of first cutting knife, one side that the connecting plate was kept away from to horizontal board is formed with the alignment edge, the second cutting knife is installed in the alignment edge of horizontal board, be formed with between the top of second cutting knife and the lateral wall of plastic subassembly and turn over a clearance, the cutting edge slope downwardly extending of second cutting knife, and the cutting edge side of second cutting knife is kept away from first cutting knife along vertical decurrent direction gradually.

2. The film sticking mechanism for plastic components as claimed in claim 1, wherein the two upright beams are formed with guide grooves, the opposite ends of the top of the first cutter are respectively formed with rectangular guide blocks, and the two rectangular guide blocks are respectively slidably inserted into the guide grooves of the two upright beams.

3. The film attachment mechanism for a plastic part of claim 2, wherein the top surface of the plastic part includes two oppositely disposed cutting edges, the first cutting blade being aligned with one of the cutting edges, and the aligned edge of the transverse plate being positioned diagonally above the other cutting edge.

4. The film sticking mechanism for the plastic component as claimed in claim 3, wherein the positioning rail is formed with a film roll section and a traction section, the film roll section and the traction section are respectively located at two opposite sides of the positioning baffle, the film roll section is used for mounting the film roll, and the traction component is mounted at the traction section.

5. The film sticking mechanism for the plastic component as claimed in claim 4, wherein the traction component comprises a pivot, a notch frame, a traction cylinder, a guide frame and two finger clamping cylinders, the pivot is mounted on two opposite side walls of the traction section, the middle part of the notch frame is rotatably mounted in the middle part of the pivot, the rear end of the traction cylinder is rotatably mounted at the bottom of the traction section, an output shaft of the traction cylinder is rotatably connected with the bottom end of the notch frame, the guide frame is movably connected to the notch frame, and the two finger clamping cylinders are mounted on the guide frame.

6. The film sticking mechanism for the plastic component as claimed in claim 5, wherein the two vertical beams are located on one side of the positioning baffle plate away from the traction section, two reinforcing frames are convexly arranged on two opposite side walls of the traction section, and a guide square column is fixedly arranged on the two reinforcing frames on each side.

7. The film sticking mechanism for the plastic component as claimed in claim 6, wherein the guide frame comprises two guide cross plates, a through shaft and a square sleeve, the two guide cross plates are arranged in parallel, opposite ends of each guide cross plate are respectively slidably mounted on the two guide square columns, and the middle part of the through shaft is fixedly arranged in the middle parts of the two guide cross plates in a penetrating manner.

8. The film sticking mechanism for the plastic component as claimed in claim 7, wherein the opposite ends of the square sleeve are slidably supported on the two guiding square pillars, respectively, the middle part of the square sleeve is fixed to the end part of the through shaft, one end of the through shaft away from the square sleeve is connected to the notch frame, and the two finger clamping cylinders are mounted on the opposite ends of the square sleeve, respectively.

9. The film sticking mechanism for the plastic component as claimed in claim 8, wherein the notch frame is provided with a strip-shaped notch, one end of the penetrating shaft away from the square sleeve is fixedly provided with two circular chucks, the penetrating shaft penetrates through the strip-shaped notch, and the circular chucks are respectively clamped on two opposite sides of the notch frame.

10. The film sticking mechanism for the plastic component as claimed in claim 9, wherein the distance between the two circular chucks is greater than the thickness of the notch frame to allow the notch frame to rotate relative to the through shaft, the length of the strip notch is equal to the length of the through shaft, and the distance between the top end of the notch frame and the pivot is greater than the distance between the bottom end of the notch frame and the pivot.