Cup cover ejection type pressing die

Abstract

The utility model relates to a cup lid ejection type pressing die which comprises a bottom plate, a hinge shaft vertically arranged on the bottom plate, a lower die rotationally connected with the hinge shaft, a supporting rod arranged on the bottom plate, an upper die arranged on the supporting rod, a lid ring placed on the upper die and a punch extending into the upper die. The lower die comprises two die blocks, one sides of the die blocks are rotationally connected with the hinge shafts respectively, after the die blocks are matched, a handle cavity used for forming a cup cover handle is formed in the top of the die blocks, the bottom plate is connected with an ejector rod in an up-down sliding mode, the ejector rod is located under the handle cavity, the upper die is provided with a cup cover cavity, the bottom of the cup cover cavity is communicated with the handle cavity, and the cover ring is provided with an avoiding hole convenient for a punch to penetrate through. According to the utility model, the lower mold is arranged to be of a hinged structure and avoids the ejector rod during mold opening, so that the ejector rod ejects out the glass cup cover during mold opening, a worker can conveniently take out the glass cup cover through the clamp, the transformation of old equipment is avoided, and the equipment investment is reduced.

Description

Technical Field

[0001] The utility model relates to a forming mold for glassware, in particular to a cup cover top-opening pressing mold. Background Art

[0002] Glass is used to make various glassware because of its good permeability, good plasticity and good waterproofness. Glass is a common drinking utensil. In order to prevent dust from falling in and to play a certain role in heat preservation, a glass cover is usually set on the glass. In order to facilitate the removal of the glass cover, a bead-shaped handle is usually set on the top of the glass cover. For this kind of glass cover, the traditional molding process adopts a split mold structure in the form of a slider. This method requires a suction mechanism to remove the glass cover after the glass cover is opened, which increases the equipment investment. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a cup cover top-opening pressing die.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a top-opening pressing die for a cup cover, comprising a bottom plate, a hinge shaft vertically arranged on the bottom plate, a lower die rotatably connected to the hinge shaft, a support rod arranged on the bottom plate, an upper die arranged on the support rod, a cover ring placed on the upper die, and a punch extending into the upper die, wherein the upper die is located above the lower die, and the lower die comprises two modules whose one side is rotatably connected to the hinge shaft respectively, and the modules form a handle cavity for forming a cup cover handle at the top thereof after cooperation, the bottom plate is slidably connected to an ejector rod up and down, and the ejector rod is located directly below the handle cavity, a cup cover cavity is provided on the upper die, the bottom of the cup cover cavity is communicated with the handle cavity, and the cover ring is provided with an avoidance hole for facilitating the passage of the punch.

[0005] As a further improvement of the present design, a limiting protrusion is provided on the bottom plate, and the limiting protrusion is located between the molds of the two modules.

[0006] As a further improvement of the present design, grease grooves are distributed on the outer circumferential surface of the hinge shaft, and the top end of the hinge shaft is exposed and provided with an oil filling hole connected to the grease grooves.

[0007] As a further improvement of the present design, a downwardly protruding boss is provided at the bottom of the upper mold, a groove matching with the boss is provided at the lower mold, the handle cavity is located in the middle of the groove, an annular step is provided at the bottom of the cover ring, an annular groove is provided at the edge of the cup cover cavity, and a conical surface is provided on the side wall of the annular groove to fit with the annular step at any time.

[0008] As a further improvement of the present design, the avoidance hole is a conical hole with a large top and a small bottom.

[0009] As a further improvement of the present design, a tenon is provided on the top of the bottom plate, an annular limiting groove is provided on the periphery of the tenon, and the module is provided with a limiting ring extending into the limiting groove.

[0010] The beneficial effect of the utility model is that the utility model avoids the ejector rod when the mold is opened by setting the lower mold into an articulated structure, so that when the mold is opened, the ejector rod pushes out the glass cup cover, which is convenient for workers to take out the glass cup cover through the clamp, avoiding the modification of old equipment and reducing equipment investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0013] Figure 2 It is a top view schematic diagram of the lower mold of the utility model when it is opened.

[0014] Figure 3 It is a top view schematic diagram of the upper mold of the utility model.

[0015] Figure 4 It is a top view schematic diagram of a glass cup cover formed by the utility model.

[0016] In the figure, 1. base plate, 2. push rod, 3. support rod, 4. upper die, 5. lower die, 6. cover ring, 7. punch, 8. hinge shaft, 9. cup cover cavity, 10. cone surface, 11. avoidance hole, 12. annular groove, 13. boss, 14. groove, 15. tenon, 16. limit groove, 17. handle cavity, 18. annular step, 19. grease groove, 20. oil filling hole, 21. limit protrusion, 22. module. DETAILED DESCRIPTION

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, wherein the illustrative embodiments and descriptions are only used to explain the present invention but are not intended to limit the present invention.

[0018] Embodiment: A top-opening pressing die for a cup cover comprises a bottom plate 1, a hinge shaft 8 vertically arranged on the bottom plate 1, a lower die 5 rotatably connected to the hinge shaft 8, a support rod 3 arranged on the bottom plate 1, an upper die 4 arranged on the support rod 3, a cover ring 6 placed on the upper die 4, and a punch 7 extending into the upper die 4, wherein the upper die 4 is located above the lower die 5, and the lower die 5 comprises two modules 22, one side of which is rotatably connected to the hinge shaft 8 respectively, and the modules 22 form a handle cavity 17 for forming a cup cover handle at the top thereof after cooperation, the bottom plate 1 is slidably connected to a push rod 2, and the push rod 2 is located directly below the handle cavity 17, a cup cover cavity 9 is provided on the upper die 4, and the bottom of the cup cover cavity 9 is connected to the handle cavity 17, and the cover ring 6 is provided with an avoidance hole 11 for the punch 7 to pass through.

[0019] By setting the lower mold 5 as an articulated structure to avoid the push rod 2 when opening the mold, the push rod 2 pushes out the glass cover when opening the mold, making it convenient for workers to take out the glass cover through the clamp, avoiding the modification of old equipment and reducing equipment investment.

[0020] In order to ensure the accuracy of the mold line position, a limiting protrusion 21 is provided on the bottom plate 1. The limiting protrusion 21 is located between the molds of the two modules 22. When the molds are closed, the modules 22 are always closed at the same position.

[0021] In order to reduce the damping when the module 22 rotates and facilitate mold closing and opening, a grease groove 19 is distributed on the outer circumference of the hinge shaft 8, and the top end of the hinge shaft 8 is exposed and provided with an oil filling hole 20 connected to the grease groove 19.

[0022] In order to ensure the assembly accuracy of the upper mold 4 and the lower mold 5, and the seal between the lower mold 5 and the upper mold 4, the bottom of the upper mold 4 is provided with a downwardly protruding boss 13, the lower mold 5 is provided with a groove 14 matching with the boss 13, the handle cavity 17 is located in the middle of the groove 14, the bottom of the cover ring 6 is provided with an annular step 18, the edge of the cup cover cavity 9 is provided with an annular groove 12, and the side wall of the annular groove 12 is provided with a conical surface 10 that fits with the annular step 18 at any time.

[0023] In order to facilitate accurate guidance of the punch 7, the avoidance hole 11 is a tapered hole with a large top and a small bottom.

[0024] In order to ensure the vertical accuracy of the lower mold 5 when the mold is closed and prevent the lower mold 5 from tilting, a tenon 15 is provided on the top of the bottom plate 1, and an annular limiting groove 16 is provided on the periphery of the tenon 15. The module 22 is provided with a limiting ring extending into the limiting groove 16.

[0025] When closing the mold, the module 22 rotates to the closing position, the module 22 is assembled into a complete cavity, the tenon 15 is fully matched with the limit groove 16, and the boss 13 is in place with the groove 14. When molding, the molten glass material is placed in the upper mold 4, and then the cover ring 6 is placed on the top of the upper mold 4, the annular step 18 is fully matched with the annular sink groove 12, and the punch 7 is pressed into the cup cover cavity 9 of the upper mold 4. When opening the mold, after the molded glass cup cover cools to a certain temperature, the punch 7 and the cover ring 6 are withdrawn from the upper mold 4 in turn, and then the module 22 of the lower mold 5 is rotated to open, and finally the push rod 2 is pushed upward between the two modules 22 to stop the cup cover handle, and the glass cup cover is pushed out of the cup cover cavity 9, and the worker takes out the glass cup cover with a clamp.

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cup lid top opening pressing mold, It is characterized in that The invention comprises a bottom plate, a hinge shaft vertically arranged on the bottom plate, a lower die rotatably connected to the hinge shaft, a support rod arranged on the bottom plate, an upper die arranged on the support rod, a cover ring placed on the upper die, and a punch extending into the upper die, wherein the upper die is located above the lower die, and the lower die comprises two modules whose one sides are respectively rotatably connected to the hinge shaft, and the modules are matched to form a handle cavity for forming a cup cover handle at the top thereof, the bottom plate is slidably connected to an ejector rod up and down, and the ejector rod is located directly below the handle cavity, a cup cover cavity is provided on the upper die, and the bottom of the cup cover cavity is connected to the handle cavity, and the cover ring is provided with an avoidance hole for facilitating the passage of the punch.

2. A cup lid top-opening pressing mold according to claim 1, Its characteristics are: A limiting protrusion is provided on the bottom plate, and the limiting protrusion is located between the molds of the two modules.

3. A cup cover top-opening pressing mold according to claim 1, Its characteristics are: Grease grooves are distributed on the outer peripheral surface of the hinge shaft, and the top end of the hinge shaft is exposed and provided with an oil filling hole connected to the grease grooves.

4. A cup lid top-opening pressing mold according to claim 1, Its characteristics are: A boss protruding downward is provided at the bottom of the upper mold, a groove matching with the boss is provided at the lower mold, the handle cavity is located in the middle of the groove, an annular step is provided at the bottom of the cover ring, an annular groove is provided at the edge of the cup cover cavity, and a conical surface is provided on the side wall of the annular groove matching with the annular step.

5. The cup cover top-opening pressing mold according to claim 1, Its characteristics are: The avoidance hole is a tapered hole with a large top and a small bottom.

6. A cup cover top-opening pressing mold according to claim 1, Its characteristics are: A tenon is provided on the top of the bottom plate, an annular limiting groove is provided on the periphery of the tenon, and a limiting ring extending into the limiting groove is provided on the module.

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