Film coating device for injection molded part

Abstract

The invention relates to the technical field of film coating devices, and discloses an injection molding part film coating device which comprises a feeding table and a machining frame located at one end of the feeding table, a feeding conveying belt conveying to the machining table is arranged on the feeding table in a transmission mode, the injection molding part film coating device further comprises a feeding table located below the feeding table, and the machining frame is fixed to the feeding table; a film feeding roller and a film collecting roller are rotationally connected to the upper portion and the lower portion of the machining frame correspondingly, a packaging film penetrating through the position between the machining frame and the feeding table is wound between the film feeding roller and the film collecting roller, a heating cavity is formed in the bottom of the machining frame, and a discharging opening is formed in the upper portion of the heating cavity. The machining frame is slidably connected with a bottom plate covering the discharging opening. The coating machine has the following advantages and effects that the coating, thermal shrinkage and cooling procedures of the injection molded part are integrated, the coating processing aging is shortened, and the coating efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of film coating devices, in particular to an injection molded part film coating device. Background Art

[0002] After the injection molded parts are formed, they need to be coated. Coating can effectively protect the surface of the injection molded parts, prevent scratches, collisions and chemical corrosion, improve the durability of the product, and prevent dust and dirt from adhering to the surface of the injection molded parts to keep the product clean. Heat shrink film processing is a commonly used packaging technology, widely used in food, beverages, daily necessities, electronic products and other industries. The processing process is: wrap the heat shrink film on an object of a specific shape, put the wrapped product into a heat shrink oven or hot air gun, and heat it to the shrinking temperature of the heat shrink film (usually between 100-200 degrees Celsius). The film will shrink during the heating process and wrap tightly around the surface of the product. After heating, the product needs to go through a cooling stage to allow the heat shrink film to be shaped and remain in a contracted state. Finally, the film will shrink and wrap tightly around the injection molded part to form a protective layer.

[0003] In the prior art, film wrapping, heating and cooling are respectively implemented in three stations, and the overall film wrapping process is time-consuming and not convenient for improving the film wrapping efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an injection molded part coating device, which has the effect of shortening the coating processing time and improving the coating efficiency.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: an injection molding part film coating device, comprising a loading platform and a processing frame located at one end of the loading platform, the loading platform is equipped with a loading conveyor belt that transports materials to the processing platform, and also includes a feeding platform located below the loading platform, the processing frame is fixed on the feeding platform, and the processing frame is connected to a film feeding roller and a film receiving roller that rotate up and down respectively, a packaging film that passes through the processing frame and the loading platform is wound between the film feeding roller and the film receiving roller, and a loading roller is provided at the bottom of the processing frame. A hot chamber, a material discharge port is provided above the heating chamber, the processing frame is slidably connected with a bottom plate covering the material discharge port, a lifting cylinder is installed on the processing frame, a pressure strip located above the bottom plate is fixed at the output end of the lifting cylinder, the processing frame is provided with a fuse table located below the pressure strip, the feeding table drives a feeding conveyor belt passing through the heating chamber, a heating plate is fixed in the heating chamber, a baffle cloth is fixed to the heating chamber in the conveying direction of the feeding conveyor belt, and a driving component for driving the bottom plate to slide is installed on the processing frame.

[0006] By adopting the above technical scheme, multiple injection molded parts pass through the packaging film when they are conveyed from the loading conveyor table to the processing rack. The packaging film wraps the three sides of the injection molded parts on the side and the upper and lower ends. The packaging film at the lower end of the injection molded part passes through the melting table, and the lifting cylinder drives the pressure bar to descend to press the packaging film on the upper side of the injection molded part down to the melting table, and combines with the packaging film at the lower end and is melted together, so that the injection molded parts are wrapped with the packaging film on all four sides. At the same time, the melted packaging film is re-fused into a surface located between the processing rack and the loading table. The driving component drives the bottom plate to slide and open the unloading port, so that the injection molded parts wrapped by the packaging film fall into the heating chamber, and the heating plate heats the packaging film to shrink and shape the injection molded parts on the surface. The feeding conveyor belt continues to drive the injection molded parts forward and conveys them through the baffle cloth to send the injection molded parts in the heating chamber away, so as to achieve rapid film coating and automatic unloading of the injection molded parts, shorten the film coating processing time, and improve the film coating efficiency.

[0007] The present invention is further configured as follows: clamping plates are symmetrically arranged on both sides of the loading platform, and a moving component for driving the clamping plates to move is installed between the loading platform and the processing frame.

[0008] By adopting the above technical solution, the splint clamps the injection-molded part, and the moving component drives the splint and the injection-molded part to move, so that the injection-molded part is transferred from the loading table to the processing frame to realize automatic loading. At the same time, when the pressure strip drives the packaging film to press down, the splint always clamps the injection-molded part to prevent the injection-molded part from moving, thereby improving the stability of the packaging film.

[0009] The present invention is further configured as follows: the moving assembly includes a horizontal screw rod rotatably connected between the loading platform and the processing frame, the horizontal screw rod is threadedly connected with a moving seat that slides between the loading platform and the processing frame, a clamping cylinder is fixed on the moving seat, and the clamping plate is fixed to the output end of the clamping cylinder.

[0010] By adopting the above technical solution, the output ends of the clamping cylinders at both ends extend out at the same time to drive the clamping plates on both sides to clamp the injection molded parts. The rotation of the horizontal screw drives the moving seat, the clamping plates and the injection molded parts to move along the loading table and the processing frame, and the injection molded parts are transferred from the loading table to the processing frame to realize automatic loading.

[0011] The present invention is further configured as follows: drive racks are fixed on both sides of the pressure strip through a connecting frame, the processing frame rotates a drive gear meshing with the drive rack, the drive gear is coaxially fixed with a first bevel gear, the processing frame rotates a second bevel gear meshing with the first bevel gear, the second bevel gear is coaxially fixed with a first pulley, the end of the horizontal screw rod is fixed with a second pulley, and a belt is sleeved between the first pulley and the second pulley.

[0012] By adopting the above technical solution, the two side clamps clamp the injection molded parts on the loading table. When the lifting cylinder drives the pressure bar to descend, the lifting cylinder drives the driving gear to rotate through the driving rack. The first bevel gear rotates coaxially with the driving gear, driving the second bevel gear meshing therewith to rotate, and then the first pulley rotates coaxially with the second bevel gear. The first pulley drives the horizontal screw to rotate through the belt to transfer the injection molded parts from the loading table to the processing frame. Then the pressure bar continues to descend, driving the packaging film to press the film down and fuse it. At this time, the driving rack descends and no longer meshes with the driving gear, and the injection molded parts are clamped in one place and no longer move.

[0013] The present invention is further configured as follows: the driving assembly includes a first gear rotatably connected to the processing frame and meshed with the driving rack, a movable plate sliding on the processing frame, a rotating shaft rotating on the movable plate, a second gear fixed to the rotating shaft and meshed with the first gear, and a third gear rotating on the transmission shaft, transmission racks meshed with the third gear are fixed on both sides of the base plate, a control assembly for controlling the unidirectional rotation of the third gear is arranged on the rotating shaft, and the processing frame is provided with an adjustment assembly for controlling the sliding of the movable plate.

[0014] By adopting the above technical scheme, when the film wrapping work is completed and the pressure strip rises, the driving rack meshes with the first gear to drive the first gear to rotate, and the first gear drives the second gear and the rotating shaft to rotate. The rotating shaft controls the third gear to rotate synchronously with it through the control component, driving the transmission rack and the bottom plate to move horizontally along the processing frame to open the unloading port, and the injection molded parts after film wrapping fall from the unloading port to the heating chamber, so that when the pressure strip rises and returns, the injection molded parts fall into the heating chamber for heat shrink film wrapping, shortening the film wrapping processing time and improving the film wrapping efficiency; when the pressure strip and the driving rack descend, the control component does not control the rotation of the third gear, so that the bottom plate closes the unloading port, and the injection molded parts are placed on the bottom plate for film wrapping.

[0015] The present invention is further configured as follows: slide grooves are provided on both sides of the processing frame, sliding blocks sliding in the slide grooves are fixed on both sides of the bottom plate, and a first spring is fixed between the sliding block and the inner wall of the slide groove.

[0016] By adopting the above technical solution, when the bottom plate opens the discharge port and the driving rack rises and moves away, the adjusting component controls the movable plate to move away, that is, controls the third gear to move away from the transmission rack. The third gear no longer restricts the transmission rack and the bottom plate. The bottom plate automatically returns to its original position under the pull of the first spring to close the discharge port, waiting for the next injection molded part to be encapsulated.

[0017] The present invention is further configured as follows: a control cavity is provided between the third gear and the transmission shaft, the control assembly includes a plurality of sliding rods sliding in the transmission shaft and arranged circumferentially along the transmission shaft, one end of the sliding rod extending out of the transmission shaft is located in the control cavity and is fixed with a control block, a second spring sleeved on the outside of the sliding rod is fixed between the control block and the transmission shaft, a connecting block corresponding to the control block is circumferentially provided on the inner wall surface of the third gear, and both sides of the control block and the connecting block are respectively set as an inclined surface and a straight surface.

[0018] By adopting the above technical solution, when the pressure bar descends to the driving rack and meshes with the first gear, the first gear drives the second gear and the transmission shaft to rotate. When the transmission shaft rotates, the inclined surface of the control block is against the inclined surface of the connecting block, the end of the slide rod contracts into the transmission shaft, the transmission shaft and the third gear rotate relative to each other, and the third gear and the base plate are stationary; when the coating work is completed, the pressure bar rises and drives the driving rack to rise. When the transmission shaft rotates, the straight surface of the control block is against the straight surface of the connecting block, and the transmission shaft drives the third gear to rotate synchronously, and then the third gear drives the base plate to slide along the processing frame through the transmission rack to open the unloading port, thereby realizing automatic unloading after the coating work is completed, while avoiding affecting the coating work.

[0019] The present invention is further configured as follows: the adjustment assembly comprises a first adjustment block fixed to the driving rack and a second adjustment block fixed to the movable plate, and the bottom of the first adjustment block and the upper end of the second adjustment block are configured as mutually compatible inclined surfaces.

[0020] By adopting the above technical solution, when the pressure bar descends and drives the driving rack to descend, the driving rack pushes the second adjusting block and the movable plate to move horizontally through the first adjusting block, so that the third gear moves to the top of the transmission rack and engages with the transmission rack; when the pressure bar rises and drives the driving rack and the first adjusting block to move away, the third gear moves away from the transmission rack, no longer restricting the movement of the transmission rack, so that the bottom plate automatically returns to its original position under the pull of the first spring to close the discharge port.

[0021] The present invention is further configured as follows: the processing frame is fixed with a fixed plate, the movable plate is fixed with a guide rod inserted and slidably connected to the fixed plate, and a third spring sleeved on the outside of the guide rod is fixed between the movable plate and the fixed plate.

[0022] By adopting the above technical solution, when the pressure bar rises to drive the driving rack and the first adjusting block to move away, the third spring pushes the movable plate to move, that is, pushes the third gear to move away from the transmission rack.

[0023] The present invention is further configured as follows: the processing frame is equipped with heat dissipation fans located on both sides of the feeding platform, and the heating chamber and the heat dissipation fans are distributed in sequence along the conveying direction of the feeding conveyor belt.

[0024] By adopting the above technical solution, when the feeding conveyor belt continues to drive the injection molded parts forward and passes through the baffle cloth to send the injection molded parts in the heating chamber away, the cooling fan sends air to both sides of the injection molded parts to quickly cool the injection molded parts. Finally, the film will shrink and tightly wrap around the injection molded parts to form a protective layer.

[0025] The beneficial effects of the present invention are:

[0026] 1. The four sides of the injection molded parts are wrapped with packaging film. At the same time, the melted packaging film is re-fused into a surface between the processing frame and the loading table. The driving component drives the bottom plate to slide and open the unloading port, so that the injection molded parts wrapped with packaging film fall into the heating chamber. The heating plate heats the packaging film to shrink and shape the surface of the injection molded parts. The feeding conveyor belt continues to drive the injection molded parts forward and transports them through the baffle cloth to send the injection molded parts in the heating chamber away, so as to achieve rapid film coating and automatic unloading of the injection molded parts, shorten the film coating processing time, and improve the film coating efficiency;

[0027] 2. The splint clamps the injection molded parts, and the moving assembly drives the splint and the injection molded parts to move, transferring the injection molded parts from the loading table to the processing rack to realize automatic loading. At the same time, when the pressure strip drives the packaging film to press down, the splint always clamps the injection molded parts to prevent the injection molded parts from moving, thereby improving the stability of the packaging film;

[0028] 3. When the feeding conveyor belt continues to drive the injection molded parts forward and passes through the baffle cloth to send the injection molded parts in the heating chamber away, the cooling fan sends air to both sides of the injection molded parts to quickly cool the injection molded parts. Eventually, the film will shrink and tightly wrap around the injection molded parts to form a protective layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the structure of the present invention.

[0031] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0032] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0033] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0034] Figure 5 It is a schematic cross-sectional structure diagram of the third gear, control assembly and rotating shaft of the present invention.

[0035] Figure 6 yes Figure 5 Enlarged view of center C.

[0036] In the figure, 1, loading platform; 2, processing frame; 3, loading conveyor belt; 4, feeding platform; 5, film feeding roller; 6, film collecting roller; 7, packaging film; 8, heating chamber; 9, unloading port; 10, bottom plate; 11, lifting cylinder; 12, pressure strip; 13, fusing platform; 14, feeding conveyor belt; 15, heating plate; 16, cloth stop; 17, driving assembly; 171, first gear; 172, movable plate; 173, rotating shaft; 174, second gear; 175, third gear; 176, transmission rack; 18, clamping plate; 19, moving assembly; 191, horizontal screw rod; 192, moving seat; 193. Clamping cylinder; 20. Driving rack; 21. Driving gear; 22. First bevel gear; 23. Second bevel gear; 24. First pulley; 25. Second pulley; 26. Belt; 27. Control assembly; 271. Sliding rod; 272. Control block; 273. Second spring; 274. Connecting block; 28. Adjusting assembly; 281. First adjusting block; 282. Second adjusting block; 283. Fixing plate; 284. Guide rod; 285. Third spring; 29. ​​Sliding groove; 30. Sliding block; 31. First spring; 32. Control chamber; 33. Cooling fan; 34. Connecting frame. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1, an injection molded part coating device, such as Figure 1-Figure 3As shown, it includes a loading platform 1 and a processing frame 2 located at one end of the loading platform 1, a loading conveyor belt 3 for conveying materials to the processing platform is driven on the loading platform 1, and a feeding platform 4 is also included below the loading platform 1, the processing frame 2 is fixed on the feeding platform 4, and the processing frame 2 is connected to a film feeding roller 5 and a film receiving roller 6 for rotating up and down respectively, and a packaging film 7 passing through the processing frame 2 and the loading platform 1 is wound between the film feeding roller 5 and the film receiving roller 6, a heating chamber 8 is provided at the bottom of the processing frame 2, and a material discharge port 9 is provided above the heating chamber 8, and the processing frame 2 slides A bottom plate 10 covering the feed opening 9 is connected, a lifting cylinder 11 is installed on the processing frame 2, a pressure strip 12 located above the bottom plate 10 is fixed to the output end of the lifting cylinder 11, a fuse table 13 located below the pressure strip 12 is provided on the processing frame 2, a feeding table 4 is driven by a feeding conveyor belt 14 passing through the heating chamber 8, a heating plate 15 is fixed in the heating chamber 8, a blocking cloth 16 is fixed on the heating chamber 8 in the conveying direction of the feeding conveyor belt 14, and a driving component 17 for driving the bottom plate 10 to slide is installed on the processing frame 2.

[0039] like Figure 1 As shown, clamping plates 18 are symmetrically arranged on both sides of the loading platform 1 , and a moving component 19 for driving the clamping plates 18 to move is installed between the loading platform 1 and the processing frame 2 .

[0040] like Figure 1-Figure 2 As shown, the moving assembly 19 includes a horizontal screw rod 191 rotatably connected between the loading platform 1 and the processing frame 2, and a moving seat 192 that slides between the loading platform 1 and the processing frame 2 is threadedly connected to the horizontal screw rod 191, a clamping cylinder 193 is fixed on the moving seat 192, and the clamping plate 18 is fixed to the output end of the clamping cylinder 193.

[0041] like Figure 1 , Figure 3 , Figure 4 As shown, a driving rack 20 is fixed on both sides of the pressure strip 12 through a connecting frame 34, the processing frame 2 rotates with a driving gear 21 meshing with the driving rack 20, the driving gear 21 is coaxially fixed with a first bevel gear 22, the processing frame 2 rotates with a second bevel gear 23 meshing with the first bevel gear 22, the second bevel gear 23 is coaxially fixed with a first pulley 24, a second pulley 25 is fixed at the end of the horizontal screw rod 191, and a belt 26 is sleeved between the first pulley 24 and the second pulley 25.

[0042] like Figure 1-Figure 2As shown, the driving assembly 17 includes a first gear 171 rotatably connected to the processing frame 2 and meshed with the driving rack 20, a movable plate 172 sliding on the processing frame 2, a rotating shaft 173 rotating on the movable plate 172, a second gear 174 fixed to the rotating shaft 173 and meshed with the first gear 171, and a third gear 175 rotating on the transmission shaft, transmission racks 176 meshed with the third gear 175 are fixed on both sides of the base plate 10, a control assembly 27 for controlling the unidirectional rotation of the third gear 175 is provided on the rotating shaft 173, and the processing frame 2 is provided with an adjusting assembly 28 for controlling the sliding of the movable plate 172.

[0043] like Figure 2 As shown, slide grooves 29 are provided on both sides of the processing frame 2, and sliders 30 sliding in the slide grooves 29 are fixed on both sides of the bottom plate 10, and a first spring 31 is fixed between the slider 30 and the inner wall of the slide groove 29.

[0044] like Figure 1-Figure 6 As shown, a control cavity 32 is provided between the third gear 175 and the transmission shaft, and the control assembly 27 includes a plurality of slide rods 271 which are arranged along the circumference of the transmission shaft and slide in the transmission shaft, the slide rod 271 extends out of one end of the transmission shaft and is located in the control cavity 32 and is fixed with a control block 272, and a second spring 273 which is sleeved on the outside of the slide rod 271 is fixed between the control block 272 and the transmission shaft, and a connecting block 274 corresponding to the control block 272 is provided along the circumference of the inner wall surface of the third gear 175, and both sides of the control block 272 and the connecting block 274 are respectively set as an inclined surface and a straight surface.

[0045] like Figure 2 As shown, the adjustment assembly 28 includes a first adjustment block 281 fixed to the driving rack 20 and a second adjustment block 282 fixed to the movable plate 172. The bottom of the first adjustment block 281 and the upper end of the second adjustment block 282 are configured as mutually compatible inclined surfaces.

[0046] like Figure 2 , Figure 3 As shown, the processing frame 2 is fixed with a fixed plate 283, the movable plate 172 is fixed with a guide rod 284 inserted and slidably connected to the fixed plate 283, and a third spring 285 sleeved on the outside of the guide rod 284 is fixed between the movable plate 172 and the fixed plate 283.

[0047] like Figure 3 As shown, the processing frame 2 is equipped with heat dissipation fans 33 located on both sides of the feeding platform 4, and the heating chamber 8 and the heat dissipation fans 33 are distributed in sequence along the conveying direction of the feeding conveyor belt 14.

[0048] Working principle: the output ends of the clamping cylinders 193 at both ends extend out at the same time to drive the clamping plates 18 on both sides to clamp the injection molded parts on the feeding conveyor belt 3. When the lifting cylinder 11 starts to drive the pressure strip 12 to descend, the lifting cylinder 11 drives the driving gear 21 to rotate through the driving rack 20, and the first bevel gear 22 rotates coaxially with the driving gear 21, driving the second bevel gear 23 meshing therewith to rotate, and then the first pulley 24 rotates coaxially with the second bevel gear 23. The first pulley 24 drives the horizontal screw 191 to rotate through the belt 26 to transfer the injection molded parts from the feeding table 1 to the processing frame 2. When the injection molded parts are transported from the feeding conveyor table to the processing frame 2, they pass through the packaging film 7. The packaging film 7 wraps the injection molded parts on the sides and the upper and lower ends. The packaging film 7 at the lower end of the injection molded parts passes through the fusing table 13, and then the pressure strip 12 continues to descend, and the clamping plate 18 still clamps the injection molded parts, wrapping the upper and lower sides of the injection molded parts. The packaging film 7 is pressed down to the fusing table 13, combined with the packaging film 7 at the lower end and fusing together, so that the four sides of the injection molded part are wrapped by the packaging film 7, and at the same time, the fusing packaging film 7 is re-fused into a surface located between the processing frame 2 and the loading table 1; while the pressure bar 12 continues to descend, the driving rack 20 descends, and the driving rack 20 pushes the second adjusting block 282 and the movable plate 172 to move horizontally through the first adjusting block 281, so that the third gear 175 moves to the top of the transmission rack 176 and meshes with the transmission rack 176. When the driving rack 20 meshes with the first gear 171, the first gear 171 drives the second gear 174 and the transmission shaft to rotate. When the transmission shaft rotates, the inclined surface of the control block 272 is against the inclined surface of the connecting block 274, and the end of the slide rod 271 shrinks into the transmission shaft, and the transmission shaft and the third gear 175 rotate relative to each other, and the third gear 175 and the bottom plate 10 are stationary;

[0049] After the film is wrapped, when the four sides of the injection molded part on the bottom plate 10 are wrapped by the packaging film 7, the clamping plate 18 still clamps the injection molded part, and when the pressure strip 12 rises and drives the driving rack 20 to rise, the driving rack 20 meshes with the first gear 171 to drive the first gear 171 to rotate, and the first gear 171 drives the second gear 174 and the rotating shaft 173 to rotate. When the transmission shaft rotates, the flat surface of the control block 272 is against the flat surface of the connecting block 274, and the transmission shaft drives the third gear 175 to rotate synchronously, and then the third gear 175 drives the bottom plate 10 to slide along the processing frame 2 through the transmission rack 176 to open the discharge port 9, and the clamping cylinder 193 controls the clamping plate 18 to release the injection molded part, and the injection molded part falls into the heating chamber 8 through the discharge port 9; the pressure strip 12 and the driving rack 20 continue to rise, and the driving rack 20 meshes with the driving gear 21 again, driving the driving gear 21 to reverse The first bevel gear 22 rotates coaxially with the driving gear 21, driving the second bevel gear 23 meshing therewith to rotate, and then the first pulley 24 rotates coaxially with the second bevel gear 23, and the first pulley 24 drives the horizontal screw 191 to rotate through the belt 26 to transfer the movable seat 192 and the clamping cylinder 193 from the processing frame 2 to the loading table 1; during the continuous rise of the driving rack 20, the first adjusting block 281 is removed from the second adjusting block 282, and the third spring 285 pushes the movable plate 172 to move, that is, pushes the third gear 175 on the movable plate 172 to move away from the transmission rack 176, and no longer restricts the transmission rack 176 and the bottom plate 10. The bottom plate 10 automatically returns to its original position under the pull of the first spring 31 to close the discharge port 9 and the heating chamber 8 at the same time, so that the heating chamber 8 is in a sealed state, waiting for the next injection molded part to be coated;

[0050] After the injection molded part wrapped by the packaging film 7 falls into the heating chamber 8, the heating plate 15 is heated to shrink the packaging film 7 and shape it on the surface of the injection molded part. The feeding conveyor belt 14 continues to drive the injection molded part forward and passes through the baffle 16 to send the injection molded part in the heating chamber 8 away, passing through the heat dissipation fan 33. The heat dissipation fan 33 sends air to both sides of the injection molded part to quickly cool the injection molded part. Finally, the film will shrink and tightly wrap around the injection molded part to form a protective layer, completing the overall packaging work.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molded part coating device, comprising a loading platform (1) and a processing frame (2) located at one end of the loading platform (1), wherein a loading conveyor belt (3) is driven on the loading platform (1) to transport materials to the processing platform, and characterized in that: The processing frame (2) is fixed on the feeding frame (4); the processing frame (2) is rotatably connected to a film feeding roller (5) and a film collecting roller (6) respectively; a packaging film (7) passing through the processing frame (2) and the feeding frame (1) is wound between the film feeding roller (5) and the film collecting roller (6); a heating chamber (8) is provided at the bottom of the processing frame (2); a material discharge port (9) is provided above the heating chamber (8); the processing frame (2) is slidably connected to a bottom plate (10) covering the material discharge port (9); and the processing frame (2) is provided with a heating chamber (8) at the bottom of the processing frame (2); and a material discharge port (9) is provided above the heating chamber (8). ) is installed with a lifting cylinder (11), the output end of the lifting cylinder (11) is fixed with a pressure strip (12) located above the bottom plate (10), the processing frame (2) is provided with a fuse table (13) located below the pressure strip (12), the feeding table (4) is driven by a feeding conveyor belt (14) passing through the heating chamber (8), a heating plate (15) is fixed in the heating chamber (8), a blocking cloth (16) is fixed in the heating chamber (8) in the conveying direction of the feeding conveyor belt (14), and a driving component (17) for driving the bottom plate (10) to slide is installed on the processing frame (2).

2. The device for coating injection molded parts according to claim 1, characterized in that: Clamps (18) are symmetrically arranged on both sides of the loading platform (1), and a moving component (19) for driving the clamps (18) to move is installed between the loading platform (1) and the processing frame (2).

3. The device for coating injection molded parts according to claim 2, characterized in that: The moving assembly (19) comprises a horizontal screw rod (191) rotatably connected between the loading platform (1) and the processing frame (2); a moving seat (192) is threadedly connected to the horizontal screw rod (191) and slides between the loading platform (1) and the processing frame (2); a clamping cylinder (193) is fixed to the moving seat (192); and the clamping plate (18) is fixed to the output end of the clamping cylinder (193).

4. The device for coating injection molded parts according to claim 3, characterized in that: A driving rack (20) is fixed on both sides of the pressure bar (12) through a connecting frame (34); the processing frame (2) is provided with a driving gear (21) meshed with the driving rack (20); the driving gear (21) is coaxially fixed with a first bevel gear (22); the processing frame (2) is provided with a second bevel gear (23) meshed with the first bevel gear (22); the second bevel gear (23) is coaxially fixed with a first pulley (24); a second pulley (25) is fixed at the end of the horizontal screw rod (191); a belt (26) is sleeved between the first pulley (24) and the second pulley (25).

5. The device for coating injection molded parts according to claim 4, characterized in that: The driving assembly (17) comprises a first gear (171) rotatably connected to the processing frame (2) and meshed with the driving rack (20), a movable plate (172) sliding on the processing frame (2), a rotating shaft (173) rotating on the movable plate (172), a second gear (174) fixed to the rotating shaft (173) and meshed with the first gear (171), and a third gear (175) rotating on the transmission shaft, transmission racks (176) meshed with the third gear (175) are fixed on both sides of the bottom plate (10), a control assembly (27) for controlling the unidirectional rotation of the third gear (175) is arranged on the rotating shaft (173), and the processing frame (2) is provided with an adjusting assembly (28) for controlling the sliding of the movable plate (172).

6. The device for coating injection molded parts according to claim 5, characterized in that: Slide grooves (29) are provided on both sides of the processing frame (2), and sliders (30) sliding in the slide grooves (29) are fixed on both sides of the bottom plate (10), and a first spring (31) is fixed between the slider (30) and the inner wall of the slide groove (29).

7. The device for coating injection molded parts according to claim 6, characterized in that: A control cavity (32) is provided between the third gear (175) and the transmission shaft, the control assembly (27) comprises a plurality of slide bars (271) which slide in the transmission shaft and are arranged along the circumference of the transmission shaft, the slide bar (271) extends out of the transmission shaft at one end and is located in the control cavity (32) and is fixed with a control block (272), a second spring (273) which is sleeved on the outside of the slide bar (271) is fixed between the control block (272) and the transmission shaft, a connecting block (274) which corresponds to the control block (272) is provided on the inner wall surface of the third gear (175) along the circumference, and both sides of the control block (272) and the connecting block (274) are respectively set as an inclined surface and a straight surface.

8. The device for coating injection molded parts according to claim 7, characterized in that: The adjustment assembly (28) comprises a first adjustment block (281) fixed to the driving rack (20) and a second adjustment block (282) fixed to the movable plate (172), wherein the bottom of the first adjustment block (281) and the upper end of the second adjustment block (282) are arranged as mutually compatible inclined surfaces.

9. The device for coating injection molded parts according to claim 8, characterized in that: The processing frame (2) is fixed with a fixed plate (283), the movable plate (172) is fixed with a guide rod (284) inserted and slidably connected to the fixed plate (283), and a third spring (285) sleeved on the outside of the guide rod (284) is fixed between the movable plate (172) and the fixed plate (283).

10. The device for coating injection molded parts according to claim 1, characterized in that: The processing frame (2) is equipped with heat dissipation fans (33) located on both sides of the feeding platform (4), and the heating chamber (8) and the heat dissipation fans (33) are distributed in sequence along the conveying direction of the feeding conveyor belt (14).

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