Vacuum cup necking grinding tool

Abstract

The utility model belongs to the technical field of grinding tools, and particularly relates to a vacuum cup necking grinding tool which comprises a U-shaped mounting frame and a main shaft, the main shaft is arranged in the U-shaped mounting frame, a liquid inlet cavity and a liquid outlet cavity are formed in the main shaft, the middle of the main shaft is rotationally connected with a grinding tool body, and the grinding tool body is arranged in the U-shaped mounting frame. Three sealing bearings distributed at equal intervals are arranged on the inner wall of the grinding tool body from top to bottom, and the grinding tool body is rotationally connected to the middle of a main shaft through the three sealing bearings. According to the grinding tool, cooling liquid enters the liquid inlet cavity through the liquid inlet pipe cavity, the edge of the grinding tool body is cooled, the situation that the service life is affected due to long-term overheating of the grinding tool body is prevented, the cooling liquid entering the annular groove flows back into the first cavity through the liquid outlet pipe cavity and is discharged along the liquid outlet cavity, the cooling liquid circulates smoothly, and the service life of the grinding tool body is prolonged. The cooling effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of abrasive tools, and particularly relates to a necking die for a heat preservation cup. Background Art

[0002] A heat preservation cup is generally a water container made of ceramics or stainless steel with a vacuum layer. It has a lid on the top and is tightly sealed. The vacuum heat insulation layer can slow down the heat dissipation of liquids such as water inside, so as to achieve the purpose of heat preservation. For a stainless steel heat preservation cup, the size of its cup mouth is smaller than that of the cup body. During production, a necking machine is needed for necking. When necking, while the necking machine drives the cup body to rotate, it pushes the die to squeeze the cup mouth to achieve the necking effect.

[0003] Since the die needs to squeeze the cup mouth and will generate friction with the cup mouth, heat will be generated when the die is necking. To improve the quality of the die, the die is generally made relatively thick, so it is difficult for the heat to dissipate. After long-term use, the temperature of the die will rise, causing component fatigue and affecting the service life of the die. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a necking die for a heat preservation cup, which can cool the edge of the die body to prevent the die body from being overheated for a long time and affecting its service life, so as to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A necking die for a heat preservation cup includes a U-shaped mounting frame and a main shaft. The main shaft is arranged inside the U-shaped mounting frame. An inlet liquid cavity and an outlet liquid cavity are arranged inside the main shaft. The middle part of the main shaft is rotationally connected with a die body. Three equally spaced sealing bearings are arranged on the inner wall of the die body from top to bottom. The die body is rotationally connected to the middle part of the main shaft through the three sealing bearings. The three sealing bearings divide the gap between the inner wall of the die body and the outer wall of the main shaft into a first chamber and a second chamber which are distributed up and down. An annular groove is arranged at the edge inside the die body. Liquid outlet pipe cavities equally spaced around the axis of the die body are arranged at the top inside the die body. The two ends of each liquid outlet pipe cavity are communicated with the annular groove and the first chamber respectively. Liquid inlet pipe cavities equally spaced around the axis of the die body are arranged at the bottom inside the die body. The two ends of each liquid inlet pipe cavity are communicated with the second chamber and the annular groove respectively.

[0006] Further, mounting grooves are arranged at both the top end and the bottom end of the U-shaped mounting frame. The bottom end of the main shaft is rotationally connected inside one of the mounting grooves through a rotating shaft. The top end of the main shaft penetrates through the other mounting groove, and a nut is arranged at the top of the main shaft.

[0007] Further, the top end of the main shaft is fixedly connected and communicated with a liquid inlet pipe head and a liquid outlet pipe head, and the bottom ends of the liquid inlet pipe head and the liquid outlet pipe head are respectively fixedly connected and communicated with the top end of the liquid inlet cavity and the bottom end of the liquid outlet cavity.

[0008] Further, a plurality of the liquid inlet pipe cavities are respectively arranged corresponding to a plurality of the liquid outlet pipe cavities, and each group of the correspondingly arranged liquid inlet pipe cavity and liquid outlet pipe cavity are vertically staggered.

[0009] Further, sealing plates are arranged inside the liquid inlet pipe cavity at equal intervals around the axis of the grinding tool body.

[0010] Further, the sealing plates divide the annular groove into a plurality of water cooling cavities.

[0011] Further, a group of correspondingly arranged liquid inlet pipe cavity and liquid outlet pipe cavity are arranged on the side wall of the water cooling cavity.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The coolant enters the inside of the liquid inlet cavity through the liquid inlet pipe cavity, cools the edge of the grinding tool body, prevents the grinding tool body from being overheated for a long time and affecting its service life. The coolant entering the annular groove flows back into the first chamber through the liquid outlet pipe cavity and is discharged along the liquid outlet cavity. The coolant circulates smoothly, improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 is a front view of the present utility model;

[0015] Figure 3 is a front cross-sectional view of the present utility model;

[0016] Figure 4 is an internal structural schematic diagram of the annular groove of the present utility model.

[0017] In the drawings, the list of components represented by each reference numeral is as follows:

[0018] 1. U-shaped mounting bracket; 11. mounting groove; 2. main shaft; 21. nut; 22. liquid inlet pipe head; 23. liquid outlet pipe head; 24. liquid inlet cavity; 25. liquid outlet cavity; 3. grinding tool body; 31. sealing bearing; 32. first chamber; 33. second chamber; 34. annular groove; 35. liquid inlet pipe cavity; 36. liquid outlet pipe cavity; 37. sealing plate; 38. water cooling cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the purpose and advantages of the present utility model clearer and more understandable, the present utility model will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the scope of protection of the specific claims of the present utility model.

[0020] As Figures 1-3 shown, a necking die for a heat-insulated cup includes a U-shaped mounting frame 1 and a main shaft 2. The main shaft 2 is arranged inside the U-shaped mounting frame 1. An inlet liquid cavity 24 and an outlet liquid cavity 25 are arranged inside the main shaft 2. A die body 3 is rotatably connected to the middle of the main shaft 2. Three equally spaced sealing bearings 31 are arranged on the inner wall of the die body 3 from top to bottom. The die body 3 is rotatably connected to the middle of the main shaft 2 through the three sealing bearings 31. The three sealing bearings 31 divide the gap between the inner wall of the die body 3 and the outer wall of the main shaft 2 into a first chamber 32 and a second chamber 33 which are distributed up and down. An annular groove 34 is arranged at the edge inside the die body 3. Liquid outlet pipe cavities 36 equally spaced around the axis of the die body 3 are arranged at the top inside the die body 3. Both ends of the liquid outlet pipe cavity 36 communicate with the annular groove 34 and the first chamber 32 respectively. Liquid inlet pipe cavities 35 equally spaced around the axis of the die body 3 are arranged at the bottom inside the die body 3. Both ends of the liquid inlet pipe cavity 35 communicate with the second chamber 33 and the annular groove 34 respectively.

[0021] According to the above structure, when necking the heat-insulated cup blank after stamping, the side of the die body 3 is contacted with the mouth of the heat-insulated cup. As the necking machine drives the heat-insulated cup to rotate, the necking machine drives the die body 3 to move towards the axis of the heat-insulated cup, so that the die body 3 squeezes the mouth of the heat-insulated cup for necking. The die body 3 is rotatably connected to the main shaft 2. When necking, the die body 3 rotates synchronously with the heat-insulated cup, reducing the wear of the die body 3. When necking, coolant is injected into the second chamber 33 through the inlet liquid cavity 24. The coolant enters the inlet liquid cavity 24 through the liquid inlet pipe cavity 35, cooling the edge of the die body 3 to prevent the die body 3 from being overheated for a long time and affecting its service life. The coolant entering the annular groove 34 flows back to the first chamber 32 through the liquid outlet pipe cavity 36 and is discharged along the outlet liquid cavity 25. The coolant circulates smoothly, improving the cooling effect.

[0022] As Figure 1 and 2 shown, mounting grooves 11 are arranged at both the top and bottom of the U-shaped mounting frame 1. The bottom end of the main shaft 2 is rotatably connected to the inside of one of the mounting grooves 11 through a rotating shaft. The top end of the main shaft 2 penetrates through the other mounting groove 11, and a nut 21 is arranged at the top of the main shaft 2.

[0023] According to the above structure, when maintenance is required, by loosening the nut 21 on the main shaft 2, the main shaft 2 is rotated outward relative to the U-shaped mounting bracket 1, and the grinding tool body 3 is rotated out from the inside of the U-shaped mounting bracket 1, facilitating maintenance.

[0024] As Figure 2 and 3 shown, the top end of the main shaft 2 is fixedly connected and communicated with a liquid inlet pipe head 22 and a liquid outlet pipe head 23. The bottom end of the liquid inlet pipe head 22 and the bottom end of the liquid outlet pipe head 23 are respectively fixedly connected and communicated with the top end of the liquid inlet cavity 24 and the bottom end of the liquid outlet cavity 25.

[0025] According to the above structure, the liquid inlet pipe head 22 is communicated with the liquid outlet of the external cooling system, and the liquid outlet pipe head 23 is communicated with the liquid inlet of the cooling system, thereby connecting this grinding tool to the external cooling system.

[0026] As Figure 3 and 4 shown, a number of liquid inlet pipe cavities 35 are respectively arranged corresponding to a number of liquid outlet pipe cavities 36. Each set of corresponding liquid inlet pipe cavities 35 and liquid outlet pipe cavities 36 are arranged in a staggered manner in the vertical direction.

[0027] According to the above structure, when the coolant enters the inside of the annular groove 34 through the liquid inlet pipe cavity 35, it flows a certain distance inside the annular groove 34 and then flows out through the corresponding liquid outlet pipe cavity 36, preventing the coolant from flowing out through the liquid outlet pipe cavity 36 immediately after entering the inside of the annular groove 34, which affects the cooling effect.

[0028] As Figure 3 and 4 shown, sealing plates 37 are arranged inside the liquid inlet pipe cavity 35 at equal distances around the axis of the grinding tool body 3. The sealing plates 37 divide the annular groove 34 into a number of water cooling cavities 38. The side walls of the water cooling cavities 38 are provided with a set of corresponding liquid inlet pipe cavities 35 and liquid outlet pipe cavities 36.

[0029] According to the above structure, each water cooling cavity 38 is internally provided with a set of corresponding liquid inlet pipe cavities 35 and liquid outlet pipe cavities 36, and there is coolant circulating inside each water cooling cavity 38, preventing the coolant from flowing out from different outlets and generating convection, resulting in poor coolant circulation.

[0030] The working principle of the present utility model is as follows: Connect the liquid inlet pipe head 22 to the liquid outlet of the externally provided cooling system, and connect the liquid outlet pipe head 23 to the liquid inlet of the cooling system, so as to connect this grinding tool to the externally provided cooling system. When necking the stamped thermos cup blank, make the side of the grinding tool body 3 contact with the thermos cup mouth. As the necking machine drives the thermos cup to rotate, the necking machine drives the grinding tool body 3 to move towards the axis of the thermos cup, so that the grinding tool body 3 squeezes the thermos cup mouth for necking. The grinding tool body 3 is rotatably connected to the main shaft 2. During necking, the grinding tool body 3 rotates synchronously with the thermos cup, reducing the wear of the grinding tool body 3. During necking, coolant is injected into the interior of the second chamber 33 through the liquid inlet chamber 24. The coolant enters the liquid inlet chamber 24 through the liquid inlet pipe chamber 35 to cool the edge of the grinding tool body 3, preventing the grinding tool body 3 from being overheated for a long time and affecting its service life. The coolant that enters the annular groove 34 flows back into the interior of the first chamber 32 through the liquid outlet pipe chamber 36 and is discharged along the liquid outlet chamber 25. The coolant circulates smoothly, improving the cooling effect. When the coolant enters the interior of the annular groove 34 through the liquid inlet pipe chamber 35, it flows a certain distance inside the annular groove 34 and then flows out through the corresponding liquid outlet pipe chamber 36, preventing the coolant from flowing out through the liquid outlet pipe chamber 36 immediately after entering the annular groove 34 and affecting the cooling effect. A set of corresponding liquid inlet pipe chamber 35 and liquid outlet pipe chamber 36 are provided in each water-cooled chamber 38, and there is coolant circulating in each water-cooled chamber 38, preventing the coolant from flowing out from different outlets and generating convection, resulting in poor coolant circulation.

[0031] The above is only the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model are implemented according to the conventional means in the art without special description and limitation.

Claims

1. A vacuum cup necking mold, comprising a U-mounting frame (1) and a main shaft (2), characterized in that: The spindle (2) is arranged inside the U mounting frame (1); a liquid inlet cavity (24) and a liquid outlet cavity (25) are arranged inside the spindle (2); a mold body (3) is rotatably connected to the middle of the spindle (2); three sealed bearings (31) are equidistantly arranged on the inner wall of the mold body (3) from top to bottom; the mold body (3) is rotatably connected to the middle of the spindle (2) via the three sealed bearings (31); the three sealed bearings (31) divide the gap between the inner wall of the mold body (3) and the outer wall of the spindle (2) into first cavities distributed up and down. The mold body (3) has a first chamber (32) and a second chamber (33), the inner edge of the mold body (3) is provided with an annular groove (34), the top of the inner side of the mold body (3) is provided with a liquid outlet lumen (36) which is equidistantly distributed around the axis of the mold body (3), the two ends of the liquid outlet lumen (36) are respectively connected to the annular groove (34) and the first chamber (32), the bottom of the inner side of the mold body (3) is provided with a liquid inlet lumen (35) which is equidistantly distributed around the axis of the mold body (3), the two ends of the liquid inlet lumen (35) are respectively connected to the second chamber (33) and the annular groove (34).

2. The mold for shrinking a vacuum flask according to claim 1, characterized in that: The top and bottom ends of the U mounting frame (1) are both provided with mounting grooves (11); the bottom end of the main shaft (2) is rotatably connected to the inside of one of the mounting grooves (11) via a rotating shaft; the top end of the main shaft (2) passes through the other mounting groove (11); and a nut (21) is provided at the top of the main shaft (2).

3. The mold for shrinking a vacuum flask according to claim 2, characterized in that: The top end of the main shaft (2) is fixedly connected to a liquid inlet pipe head (22) and a liquid outlet pipe head (23), and the bottom end of the liquid inlet pipe head (22) and the bottom end of the liquid outlet pipe head (23) are fixedly connected to the top end of the liquid inlet cavity (24) and the bottom end of the liquid outlet cavity (25), respectively.

4. The mold for shrinking a vacuum flask according to claim 3, characterized in that: The plurality of liquid inlet lumens (35) are respectively arranged corresponding to the plurality of liquid outlet lumens (36), and each group of correspondingly arranged liquid inlet lumens (35) and liquid outlet lumens (36) are staggered in the vertical direction.

5. The mold for shrinking a vacuum flask according to claim 4, characterized in that: The interior of the liquid inlet cavity (35) is provided with sealing plates (37) which are equidistantly distributed around the axis of the mold body (3).

6. The mold for shrinking a vacuum flask according to claim 5, characterized in that: The sealing plate (37) divides the annular groove (34) into a plurality of water-cooling chambers (38).

7. The mold for shrinking a vacuum flask according to claim 6, characterized in that: The side wall of the water cooling cavity (38) is provided with a group of correspondingly arranged liquid inlet lumens (35) and liquid outlet lumens (36).

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