Injection mold for milk powder can cover

Abstract

The utility model provides an injection mold of a milk powder can cover, and belongs to the technical field of milk powder can cover forming. The injection mold comprises an upper mold and a lower mold, a circular groove is formed in the lower surface of the upper mold, an annular can cover plastic film groove is formed in the upper surface of the lower mold, a concave clamping groove is further formed in the upper surface of the lower mold, a protruding square block is arranged at the bottom of the concave clamping groove, a mounting groove is formed in the lower surface of the lower mold, and a horizontal sliding hole communicated with the concave clamping groove is connected to the side face of the mounting groove. A square sliding rod is slidably arranged in the horizontal sliding hole, a transverse rack part is transversely arranged at the tail of the square sliding rod, a gear set is rotationally connected into the mounting groove, the transverse rack part is meshed with the first gear, a sealing plate is fixed to a lower end opening of the mounting groove through a bolt, a driving rod slidably penetrates through the sealing plate, and a vertical rack part meshed with the third gear is arranged on the driving rod. Driving cylinders are fixed to the outer ends of the sealing plates, and telescopic rods of the driving cylinders are connected with the driving rods. The injection mold for the milk powder can cover is simple in structure, and the concave clamp is integrally formed.

Description

Technical Field

[0001] The utility model belongs to the technical field of milk powder can cover molding, and relates to an injection mold for a milk powder can cover. Background Art

[0002] The lid of the milk powder can is injection molded, and a spoon is integrally molded on the lid. When in use, open the lid of the milk powder can, and the two ends of the spoon are connected to the inner edge of the lid of the milk powder can through a thin connecting rod. Break the connecting rod, remove the spoon, and scoop up the milk powder. After use, put the spoon directly into the milk powder can, mix it with the milk powder, and the milk powder sticks to the spoon. You need to reach into the milk powder can to take it out, which is very unhygienic. For this reason, it is necessary to design a milk powder can lid that can still fix the spoon after the spoon is used. Utility Model Content

[0003] The utility model aims to solve the above problems in the prior art and proposes an injection mold for a milk powder can cover. A concave clip is integrally formed on the inner side of the milk powder can cover. The injection mold has a simple structure and low cost, and the concave clip does not affect the material return process of the milk powder can cover.

[0004] The purpose of the utility model can be achieved through the following technical solutions: an injection mold for a milk powder can lid, comprising an upper mold and a lower mold, characterized in that a circular groove is provided on the lower surface of the upper mold, a circular can lid plastic film groove is provided on the upper surface of the lower mold, a concave card slot is also provided on the upper surface of the lower mold, a raised square block is provided at the bottom of the concave card slot, a mounting groove is provided on the lower surface of the lower mold, a horizontal sliding hole connected to the concave card slot is connected to the side of the mounting groove, a square sliding rod is provided for sliding in the horizontal sliding hole, and when the square sliding rod passes through the concave card slot, the square block The square slide bar is in close contact with the lower end surface and the width of the square slide bar is greater than the width of the square block. The tail of the square slide bar is provided with a transversely arranged horizontal rack portion. A gear set is rotatably connected in the mounting groove. The gear set includes a first gear, a second gear, and a third gear that are meshed in sequence. The horizontal rack portion is meshed with the first gear. A sealing plate is fixed at the lower end of the mounting groove by bolts. A driving rod is slidably penetrated on the sealing plate. The driving rod has a vertical rack portion that is meshed with the third gear. A driving cylinder is fixed to the outer end of the sealing plate, and the telescopic rod of the driving cylinder is connected to the driving rod.

[0005] Furthermore, a bracket is fixed in the mounting groove, the upper end of the bracket has a support platform that abuts against the horizontal rack portion, and the lower end of the bracket has a vertical through hole for the driving rod to pass through. The support platform is used to support the square sliding rod so that it can be accurately inserted into the horizontal sliding hole, and the vertical through hole can prevent the driving rod from deviating left and right when moving up and down.

[0006] Furthermore, the first gear, the second gear, and the third gear have the same number of teeth and the same diameter.

[0007] Furthermore, vertically arranged guide columns are fixed on the four corners of the upper surface of the lower mold, and the upper mold is provided with guide holes that slide with the guide columns.

[0008] Furthermore, an injection hole is provided on the upper mold, and the lower end of the injection hole is connected to the circular groove.

[0009] Furthermore, an annular groove is formed on the upper surface of the lower die, an annular top block is arranged in the annular groove, and a plurality of unloading cylinders for pushing the annular top block out of the annular groove are arranged at the lower end of the lower die.

[0010] The upper and lower molds are closed along the guide column, the upper end of the injection hole is connected to the feeding pipe, and the molten plastic raw material is injected into the injection hole. The raw material fills the circular groove, the plastic film groove of the can cover and the concave card slot. At this time, the square slide bar passes through the concave card slot. Since the width of the square slide bar is greater than the width of the block, a concave clip that can clamp the spoon handle is formed in the concave card slot. After cooling, the driving cylinder is started first to push, and the driving rod moves up in the vertical direction, driving the first gear, the second gear, and the third gear to rotate, thereby driving the square slide bar to move backward, so that the square slide bar slides out of the concave card slot. At this time, the unloading cylinder is started to lift the annular top block, and the concave clip can be separated from the lower mold upward together with the milk powder can cover.

[0011] Compared with the prior art, the injection mold for the milk powder can cover has the following advantages:

[0012] 1. The inner side of the lid of the milk powder can formed by this injection mold has a concave clip, which can fix the spoon for easy use next time and is clean and hygienic.

[0013] 2. The injection mold of the milk powder can cover has a simple structure and can be modified on the existing mold, so the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the injection mold of the milk powder can cover.

[0015] Figure 2 It is a three-dimensional image of the lower mold.

[0016] Figure 3 It is a three-dimensional diagram of the lid of the milk powder can.

[0017] Figure 4 It is a partial cross-sectional view of the lower die.

[0018] In the figure, 1. upper mold; 2. lower mold; 3. circular groove; 4. plastic film groove for can cover; 5. concave card slot; 6. square; 7. mounting slot; 8. horizontal sliding hole; 9. square sliding rod; 10. horizontal rack; 11. first gear; 12. second gear; 13. third gear; 14. sealing plate; 15. driving rod; 16. vertical rack; 17. driving cylinder; 18. bracket; 19. guide column; 20. injection hole; 21. annular top block; 22. unloading cylinder; 23. milk powder can cover; 24. concave clip. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] like Figure 1 , Figure 2 As shown, the injection mold of the milk powder can cover comprises an upper mold 1 and a lower mold 2, a circular groove 3 is provided on the lower surface of the upper mold 1, a circular can cover plastic film groove 4 is provided on the upper surface of the lower mold 2, a concave card slot 5 is also provided on the upper surface of the lower mold 2, and a raised square block 6 is provided at the bottom of the concave card slot 5, a mounting groove 7 is provided on the lower surface of the lower mold 2, and a horizontal slide hole 8 connected to the concave card slot 5 is connected to the side of the mounting groove 7, a square slide bar 9 is provided for sliding in the horizontal slide hole 8, and when the square slide bar 9 passes through the concave card slot 5, the square block 6 is in close contact with the lower end surface of the square slide bar 9 and the width of the square slide bar 9 is greater than the width of the square block 6, and the tail of the square slide bar 9 is provided with a transversely arranged horizontal rack portion 10.

[0021] A gear set is rotatably connected in the mounting groove 7, and the gear set includes a first gear 11, a second gear 12, and a third gear 13 meshed in sequence, and the horizontal rack portion 10 meshes with the first gear 11. A sealing plate 14 is fixed to the lower end of the mounting groove 7 by bolts, and a driving rod 15 is slidably penetrated on the sealing plate 14, and the driving rod 15 has a vertical rack portion 16 meshed with the third gear 13. A driving cylinder 17 is fixed to the outer end of the sealing plate 14, and the telescopic rod of the driving cylinder 17 is connected to the driving rod 15. The first gear 11, the second gear 12, and the third gear 13 have the same number of teeth and diameter.

[0022] A bracket 18 is fixed in the mounting groove 7, and the upper end of the bracket 18 has a support platform that abuts against the horizontal rack portion 10, and the lower end of the bracket 18 has a vertical through hole for the driving rod 15 to pass through. The support platform is used to support the square slide bar 9 so that it can be accurately inserted into the horizontal slide hole 8, and the vertical through hole can prevent the driving rod 15 from deviating left and right when moving up and down.

[0023] An annular groove is formed on the upper surface of the lower die 2, an annular top block 21 is arranged in the annular groove, and a plurality of discharge cylinders 22 are arranged at the lower end of the lower die 2 to push the annular top block 21 out of the annular groove.

[0024] The four corners of the upper surface of the lower mold 2 are respectively fixed with vertical guide posts 19, and the upper mold 1 is provided with guide holes for slidingly cooperating with the guide posts 19. The upper mold 1 is also provided with an injection hole 20, and the lower end of the injection hole 20 is connected to the circular groove 3.

[0025] like Figure 3 As shown in the product diagram, a concave clip 24 is integrally formed on the inner side of the milk powder can lid 23. The upper mold 1 and the lower mold 2 are molded together along the guide column 19, and the upper end of the injection hole 20 is connected to the feeding pipe. The molten plastic raw material is injected into the injection hole 20, and the raw material fills the circular groove 3, the can lid plastic film groove 4 and the concave card groove 5. Figure 4 As shown, at this time, the square slide bar 9 passes through the concave slot 5. Since the width of the square slide bar 9 is greater than the width of the block 6, a concave clip 24 that can clamp the spoon handle is formed in the concave slot 5. After cooling, the driving cylinder 17 is first started to push, and the driving rod 15 moves up in the vertical direction, driving the first gear 11, the second gear 12, and the third gear 13 to rotate, thereby driving the square slide bar 9 to move backward, so that the square slide bar 9 slides out of the concave slot 5. At this time, the unloading cylinder 22 is started to lift the annular top block 21, and the concave clip 24 can be separated from the lower mold 2 upward together with the milk powder can cover 23.

[0026] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An injection mold for a milk powder can lid, comprising an upper mold and a lower mold, characterized in that: A circular groove is provided on the lower surface of the upper mold, and a circular can cover plastic film groove is provided on the upper surface of the lower mold. A concave slot is also provided on the upper surface of the lower mold, and a raised square block is provided at the bottom of the concave slot. A mounting groove is provided on the lower surface of the lower mold, and a horizontal sliding hole connected to the concave slot is connected to the side of the mounting groove. A square sliding rod is slidably arranged in the horizontal sliding hole. When the square sliding rod passes through the concave slot, the square block is tightly attached to the lower end surface of the square sliding rod and the width of the square sliding rod is greater than the width of the square block. A transverse rack portion is provided at the tail of the square sliding rod, and a gear set is rotatably connected in the mounting groove. The gear set includes a first gear, a second gear, and a third gear that are meshed in sequence. The transverse rack portion is meshed with the first gear. A sealing plate is fixed at the lower end port of the mounting groove by bolts, and a driving rod is slidably penetrated on the sealing plate. The driving rod has a vertical rack portion that is meshed with the third gear. A driving cylinder is fixed to the outer end of the sealing plate, and the telescopic rod of the driving cylinder is connected to the driving rod.

2. The injection mold for a milk powder can cover according to claim 1, characterized in that: A bracket is fixed in the installation groove, the upper end of the bracket is provided with a supporting platform abutting against the horizontal rack part, and the lower end of the bracket is provided with a vertical through hole for the driving rod to pass through.

3. The injection mold for a milk powder can cover according to claim 1, characterized in that: The first gear, the second gear, and the third gear have the same number of teeth and the same diameter.

4. The injection mold for a milk powder can cover according to claim 1, characterized in that: The four corners on the upper surface of the lower mold are respectively fixed with vertically arranged guide columns, and the upper mold is provided with guide sliding holes which are slidably matched with the guide columns.

5. The injection mold for a milk powder can cover according to claim 1, characterized in that: The upper mold is also provided with an injection hole, and the lower end of the injection hole is communicated with the circular groove.

6. The injection mold for a milk powder can cover according to claim 1, characterized in that: An annular groove is formed on the upper surface of the lower die, an annular top block is arranged in the annular groove, and a plurality of unloading cylinders for pushing the annular top block out of the annular groove are arranged at the lower end of the lower die.

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