Single film material extracting mechanism for injection molding machine for producing film pasting barrel

Abstract

The utility model discloses a single film material extracting mechanism for an injection molding machine for producing a film pasting barrel, which comprises a working table, a film material placing plate is arranged on the working table through a supporting rod, and a plurality of positioning rods are vertically arranged on the film material placing plate; supporting plates are vertically arranged on the left side and the right side of the workbench correspondingly, a cross beam is arranged on the supporting plates, and an extracting mechanism is arranged below the cross beam through a mounting plate. An air pipe is arranged beside the film material on the film material placing plate, an air nozzle is arranged at the end part of the air pipe, and an air blower is arranged at the other end of the air pipe; a photoelectric sensor is arranged on the mounting plate; and a PLC (Programmable Logic Controller) is arranged on the workbench. According to the utility model, the sucking disc is used for sucking the film material, and air is blown to the gap of the film material in the sucking process, so that the film material below resists electrostatic interference to be separated from the sucked film material, and therefore, single-piece extraction of the film material is realized, and the subsequent barrel film material attaching effect and the film attaching qualification rate are ensured.

Description

Technical Field

[0001] This utility model relates to the field of packaging container manufacturing technology, and more specifically to a single sheet extraction mechanism for injection molding machines used in the production of film-coated cylindrical barrels. Background Technology

[0002] In the packaging container manufacturing industry, laminated barrels (such as cosmetic packaging barrels and food containers) often require the simultaneous lamination of film materials during the injection molding process due to their surface decoration needs. These products typically employ a composite process of injection molding and film lamination, where a decorative film is pre-fixed within the injection mold, and then molten plastic is injected to bond it to the film, ultimately forming a barrel product with a patterned or functional coating on its surface.

[0003] Traditional film application involves manually applying the film material to the surface of a cylindrical drum, then placing the drum in a drum heating furnace to heat the film material and apply it to the surface of the drum. After the film material is applied, the finished drum is removed, and the process of applying film to the drum is repeated. Obviously, this manual method of film application is relatively inefficient.

[0004] To improve the efficiency of cylindrical film application, the manual feeding of film material to the cylindrical drum was changed to automatic feeding. The mold is placed at the film material location, and the film material is applied to the mold. The drum heating and unloading are automatic. Although the labor intensity is reduced, the film material is relatively thin and cannot be automatically fed. It is still necessary to manually pick up the film material and feed it to the mold. The feeding position is prone to deviation, and there is static electricity between the film materials. When picking up the film material, it is easy to pick up multiple sheets, which affects the subsequent film application. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a single sheet extraction mechanism for injection molding machines used in the production of film-coated cylindrical drums, which can automatically extract the film material, avoid extracting multiple sheets, and facilitate the subsequent film application to the cylindrical drum.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0007] A sheet extraction mechanism for injection molding machines used in the production of film-coated cylindrical drums includes a worktable. A sheet placement plate for placing film is mounted on the worktable via support rods. Several positioning rods for fixing the film are vertically mounted on the sheet placement plate. Support plates are vertically mounted on the left and right sides of the worktable, and crossbeams are mounted on the support plates. Below the crossbeams, via mounting plates, is an extraction mechanism for extracting the film from the sheet placement plate. An air pipe is mounted beside the film on the sheet placement plate, with a nozzle at one end for blowing air onto the extracted film, and a blower at the other end. A photoelectric sensor is mounted on the mounting plate to detect whether the cylindrical drum mold has moved below the extraction mechanism. A PLC controller is mounted on the worktable, with its input connected to the output of the photoelectric sensor, and its output connected to the inputs of the extraction mechanism and the blower.

[0008] To further optimize the technical solution, the extraction mechanism includes a lifting plate positioned above the film material placement plate, a suction cup for extracting the film material positioned below the lifting plate, a first lifting cylinder positioned on the mounting plate, the end of the extension rod of the first lifting cylinder being connected to the top surface of the lifting plate, and the input end of the first lifting cylinder being connected to the output end of the PLC controller.

[0009] To further optimize the technical solution, a guide rod is provided on the top surface of the lifting plate, which passes through the crossbeam to guide the movement position of the lifting plate.

[0010] To further optimize the technical solution, the suction cup is mounted on the lifting plate via an elastic pressure rod.

[0011] To further optimize the technical solution, the film material placement plate is provided with an adjustment groove perpendicular to the film material, and the positioning rod is set in the adjustment groove by a fastening nut at the bottom.

[0012] To further optimize the technical solution, a second lifting cylinder is provided at the bottom of the film material placement plate. The end of the extension rod of the second lifting cylinder passes through the film material placement plate and is connected to the air pipe. The input end of the second lifting cylinder is connected to the output end of the PLC controller.

[0013] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0014] This utility model provides a single-sheet film extraction mechanism for injection molding machines used in the production of film-coated cylindrical drums. The mechanism uses a suction cup to pick up the film material and blows air into the gaps in the film material during the picking process. This causes the lower film material to resist electrostatic interference and detach from the picked-up film material, thereby achieving single-sheet extraction of the film material. This ensures the effect of subsequent film coating on the cylindrical drum and the pass rate of film coating. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the film material placement plate of this utility model.

[0017] The components include: 1. Workbench, 2. Support rod, 3. Film material placement plate, 4. Positioning rod, 5. Film material, 6. Fastening nut, 7. Support plate, 8. Crossbeam, 9. Mounting plate, 10. First lifting cylinder, 11. Lifting plate, 12. Guide rod, 13. Elastic pressure rod, 14. Suction cup, 15. PLC controller, 16. Second lifting cylinder, 17. Air pipe, 18. Photoelectric sensor, 19. Air nozzle, and 20. Adjustment groove. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] A sheet extraction mechanism for injection molding machines used in the production of film-coated drums, combined with... Figures 1 to 2 As shown, the system includes a workbench 1, on which a film material placement plate 3 is mounted via support rods 2. Several positioning rods 4 are vertically mounted on the film material placement plate 3. The film material is placed between the positioning rods, and the edges of the film material are fixed by the positioning rods. A PLC controller 15 is mounted on the workbench 1 to control the extraction of the film material.

[0020] The support rod 7 has an adjustment groove 20 that is perpendicular to the film material 5. The positioning rod 4 is set in the adjustment groove by the fastening nut 6 at the bottom end. The position of the positioning rod can be adjusted according to the size of the film material, so as to realize the extraction of film materials of different sizes.

[0021] Support plates 7 are vertically installed on the left and right sides of the workbench 1. A crossbeam 8 is installed on the support plate 7. An extraction mechanism is installed below the crossbeam 8 via a mounting plate 9. The extraction mechanism is located above the film material placement plate and is used to extract the film material 5. The input end of the extraction mechanism is connected to the output end of the PLC controller.

[0022] The extraction mechanism includes a lifting plate 11 positioned above the film material placement plate 3, a suction cup 14 positioned below the lifting plate 11 for extracting the film material from the film material placement plate, a first lifting cylinder 10 positioned on the mounting plate 9, the end of the extension rod of the first lifting cylinder being connected to the top surface of the lifting plate, and the input end of the first lifting cylinder being connected to the output end of the PLC controller.

[0023] A guide rod 12 is provided on the top surface of the lifting plate 11. The guide rod 12 passes through the crossbeam 8 and is used to guide the movement of the lifting plate.

[0024] The suction cup 14 is mounted on the lifting plate 11 via the elastic pressure rod 13. When the suction cup picks up the film material, one end of the film material is picked up first, and then the other end is picked up to avoid picking up multiple sheets.

[0025] An air pipe 17 is installed beside the film material on the film material placement plate 3. An air nozzle 19 is installed at one end of the air pipe to blow air onto the extracted film material. A blower is installed at the other end of the air pipe, and the input end of the blower is connected to the input end of the PLC controller. A second lifting cylinder 16 is installed at the bottom of the film material placement plate 3. The end of the extension rod of the second lifting cylinder passes through the film material placement plate and connects to the air pipe 17. The input end of the second lifting cylinder is connected to the output end of the PLC controller. By setting the second lifting cylinder, the air nozzle can be adjusted according to the height of the film material suction position, so that the air sprayed by the air nozzle corresponds to the film material extraction point. When extracting the film material, the suction cup first picks up the film material on one side of the air nozzle. There is a certain gap between the top and bottom film material. At this time, the air nozzle blows air into the gap, blowing off the bottom film material. When picking up the film material on the other side, the bottom film material will not be attracted to the extracted film material due to static electricity, thus realizing the extraction of a single sheet of film material.

[0026] A photoelectric sensor 18 is installed on the mounting plate 9 to detect whether the cylindrical mold has moved below the extraction mechanism. The output of the photoelectric sensor is connected to the input of the PLC controller.

[0027] In this invention, during the extraction of film material, the first lifting cylinder pushes the lifting plate downwards. When the suction cup contacts the film material, it performs unilateral adsorption. As the film material is lifted, the air nozzle blows air onto the film material, blowing the lower part of the film material away from the suctioned film material. This prevents the suction of multiple sheets when extracting the other end of the film material, thus achieving single-sheet extraction of the film material. After the film material is extracted, the first lifting cylinder drives the film material to rise. When it reaches the desired position, the film material conveying mechanism extends the cylindrical mold under the film material. When the photoelectric sensor detects that the cylindrical mold is in position, the suction cup releases the film material, which adheres to the cylindrical mold. When the photoelectric sensor detects that the cylindrical mold has left, the first lifting cylinder continues to push the lifting plate downwards to continue extracting the film material.

Claims

1. A sheet-fed film extraction mechanism for injection molding machines used in the production of film-coated cylindrical drums, characterized in that: The system includes a workbench (1), on which a film material placement plate (3) for placing film material (5) is provided via a support rod (2), and several positioning rods (4) for fixing film material are vertically provided on the film material placement plate (3); support plates (7) are vertically provided on the left and right sides of the workbench (1), and a crossbeam (8) is provided on the support plate (7), and an extraction mechanism for extracting film material from the film material placement plate (3) is provided below the crossbeam (8) via an mounting plate (9); an air pipe (17) is provided on the side of the film material on the film material placement plate (3), and an air nozzle (19) for blowing air onto the extracted film material is provided at the end of the air pipe, and a blower is provided at the other end of the air pipe; a photoelectric sensor (18) for detecting whether the cylindrical mold has moved to the bottom of the extraction mechanism is provided on the mounting plate (9); a PLC controller (15) is provided on the workbench (1), the input end of the PLC controller is connected to the output end of the photoelectric sensor, and the output end of the PLC controller is connected to the input end of the extraction mechanism and the blower.

2. The single-sheet film extraction mechanism for injection molding machines used in the production of film-coated cylindrical drums according to claim 1, characterized in that: The extraction mechanism includes a lifting plate (11) set above the film material placement plate (3), a suction cup (14) for extracting film material is set below the lifting plate (11), and a first lifting cylinder (10) is set on the mounting plate (9). The end of the extension rod of the first lifting cylinder is connected to the top surface of the lifting plate, and the input end of the first lifting cylinder is connected to the output end of the PLC controller.

3. The single-sheet film extraction mechanism for injection molding machines used in the production of film-coated cylindrical drums according to claim 2, characterized in that: The top surface of the lifting plate (11) is provided with a guide rod (12) that passes through the crossbeam (8) to guide the movement position of the lifting plate.

4. The single-sheet film extraction mechanism for injection molding machines used in the production of film-coated cylindrical drums according to claim 2, characterized in that: The suction cup (14) is mounted on the lifting plate (11) via an elastic pressure rod (13).

5. The single-sheet film extraction mechanism for injection molding machines used in the production of film-coated cylindrical drums according to claim 1, characterized in that: The film material placement plate (3) is provided with an adjustment groove (20) perpendicular to the film material (5), and the positioning rod (4) is set in the adjustment groove by the fastening nut (6) at the bottom.

6. The single-sheet film extraction mechanism for injection molding machines used in the production of film-coated cylindrical drums according to claim 1, characterized in that: The bottom of the film material placement plate (3) is provided with a second lifting cylinder (16). The end of the extension rod of the second lifting cylinder passes through the film material placement plate and is connected to the air pipe (17). The input end of the second lifting cylinder is connected to the output end of the PLC controller.

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