Heat dissipation mold core structure for spinning machine

Abstract

A heat dissipation mold core structure for a spinning machine comprises a mold core body, the mold core body is provided with an annular mold molded surface, the annular mold molded surface is in a gradual change shape and / or a step shape, heat dissipation annular channels are evenly arranged in the mold core body, and the heat dissipation annular channels are arranged on the inner sides of the annular mold molded surfaces in different gradual change shapes and / or step shapes respectively. The mold core comprises a mold core body, a plurality of heat dissipation annular channels are formed in the mold core body and communicate with one another, the heat dissipation annular channels are used for taking away heat of the annular mold surface through a cooling medium, sand hole sets are formed in the annular mold surface and communicate with the corresponding heat dissipation annular channels, and a medium inlet structure is arranged in the center of the mold core body. An air escape valve structure is further arranged at the edge part of the mold core body; and the medium inlet structure and the air escape valve structure are respectively communicated with the heat dissipation ring channel. The die core cooling device is simple in structure, high in cooling efficiency, suitable for the die core of the spinning machine and capable of avoiding safety problems.

Description

Technical Field

[0001] The utility model belongs to the technical field of spinning machine parts, and in particular relates to a heat dissipation mold core structure for a spinning machine. Background Art

[0002] Metal spinning machine is a technology that makes the force point change from point to line and from line to surface by rotating, and at the same time gives a certain pressure in a certain direction to make the metal material deform and flow along this direction to form a certain shape. The main shaft of the spinning machine adopts heavy rolling bearings to withstand the large working force generated by the spinning wheel and tailstock cylinder during spinning, and to provide good cooling and lubrication for the main shaft and its bearings. When heating spinning, it has forced cooling and insulation facilities for the main shaft, spinning wheel head and tail top sleeve and other parts directly affected by heat, but there are no corresponding cooling and insulation measures for the mold core.

[0003] In the prior art, the patent document with the announcement number CN 1880038 B discloses a device and process for cooling a mold core, which includes a plurality of removable elements and is capable of forming a stable rotating surface in a structure for assembly, the surface having a continuous form close to the final form of tire manufacturing, and the mold core is used as a reference surface in tire manufacturing from assembly to vulcanization. The cooling device includes a device for grasping and fixing the mold core, and a device for setting the mold core to rotate around its rotation axis rr' in a horizontal position. The cooling device is characterized in that it includes a tank for containing cooling water, and a device for immersing a local surface of the mold core in the tank. The above scheme immerses the local surface of the mold core in the tank containing cooling water, thereby achieving a cooling effect; however, this cooling method is not only inefficient and not suitable for the mold core of the spinning machine, but also the rotating mold core is easy to cause the cooling water that has just absorbed the high temperature to splash out, injuring the operator nearby, so there is a great safety hazard. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] In view of the deficiencies in the prior art, the utility model provides a heat dissipation mold core structure for a spinning machine which has a simple structure, high cooling efficiency, can be applied to the mold core of a spinning machine, and can avoid safety problems.

[0006] 2. Specific technical solutions

[0007] A heat dissipation mold core structure for a spinning machine includes a mold core body, the mold core body has an annular model surface, the annular model surface is gradual and / or stepped, heat dissipation loops are evenly arranged inside the mold core body, the heat dissipation loops are respectively arranged on the inner sides of the annular model surfaces with different gradual and / or stepped shapes, and all the heat dissipation loops are connected, the heat dissipation loops are used to take away the heat of the annular model surface through a cooling medium, a sand eye hole group is opened on the annular model surface, the sand eye hole group is connected to the corresponding heat dissipation loop, a medium inlet structure is provided on the central part of the mold core body, and a gas relief valve structure is also provided on the edge of the mold core body, and the medium inlet structure and the gas relief valve structure are respectively connected to the heat dissipation loops.

[0008] Preferably, a mounting through hole is provided at the center of the core body, a ring-shaped stepped platform is provided in the middle of the mounting through hole, and the medium inlet structure is arranged around the ring-shaped stepped platform.

[0009] Preferably, the internal structure of the core body is a honeycomb structure, and the honeycomb structure is connected to the heat dissipation loop.

[0010] Preferably, the cooling medium injected into the heat dissipation loop is cold air or cooling water.

[0011] Preferably, the air relief valve structure includes a valve body, a valve, a valve pressure limiting spring, a piston sleeve and an adjusting tail sleeve. A connecting cavity is provided in the valve body, and a contraction port is provided in the connecting cavity. The valve acts on one side of the contraction port. The piston sleeve is connected to the valve, and the connecting part of the two has a cavity connected to the interior of the piston sleeve. The piston sleeve is slidably installed in the connecting cavity. An internal thread is also provided at the end of the connecting cavity. An external thread is provided on the outer side of the adjusting tail sleeve. The adjusting tail sleeve can be adjusted at the end of the connecting cavity by matching the external thread with the internal thread. Both ends of the valve pressure limiting spring are respectively connected to the piston sleeve and the adjusting tail sleeve.

[0012] The beneficial effects of the utility model are as follows: cold air or cooling water is continuously delivered to the middle heat dissipation loop through the medium inlet structure, and the heat of the workpiece on the annular model surface that has been spun is directly or indirectly taken away through the honeycomb holes or local sand hole holes. These heat-containing media are transmitted to the outer heat dissipation loop and discharged through the corresponding sand hole group. The discharged medium is directly facing the unprocessed part of the workpiece, which plays a role of preheating the unprocessed part, so that the subsequent part spinning is more efficient and high-quality. The workpiece part that has been spun will cover and block the corresponding sand hole group. After the workpiece is completely processed, the increase in air pressure in the heat dissipation loop will cause the air release valve structure to be deflated to ensure safety, and at the same time, it can be used to quickly judge whether the workpiece is completely formed and fitted; since the heat of the high-temperature part of the workpiece that has been processed can be discharged while processing, the time for removing the workpiece is greatly shortened, and the processing operation efficiency is higher; in the process of taking the formed workpiece, since the sand hole group has a certain repulsive force on the external workpiece, the formed workpiece can be prevented from adhering to the annular model surface, which is convenient for removing the formed workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the overall side of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the heat dissipation loop in the utility model.

[0016] Figure 4 It is a schematic cross-sectional structure diagram of the air release valve structure in the utility model.

[0017] In the figure: mold core body 1; annular mold surface 11; heat dissipation ring 2; sand hole group 3; medium inlet structure 4; air release valve structure 5; installation through hole 6;

[0018] Valve body 51; valve 52; valve pressure limiting spring 53; piston sleeve 54; regulating tail sleeve 55. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Example:

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown: a heat dissipation mold core structure for a spinning machine is provided with a core body 1, the core body 1 has an annular model surface 11, the annular model surface 11 is gradual and / or stepped, and is determined according to the shape of the workpiece product. It is evenly provided inside the core body 1, and heat dissipation ring channels 2 are respectively arranged on the inner sides of the annular model surfaces 11 with different gradual and / or stepped shapes, and all the heat dissipation ring channels 2 are connected. The heat dissipation ring channels 2 are used to take away the heat of the annular model surface 11 through a cooling medium. The cooling medium injected into the heat dissipation ring channels 2 is cold air or cooling water, and can also be other media, but these two have the lowest cost and safe ingredients, and are not afraid of leakage during the transmission process causing waste and causing safety problems.

[0024] A sand hole group 3 is provided on the annular mold surface 11, and the sand hole group 3 is connected to the corresponding heat dissipation loop 2. The diameter of each sand hole is small enough to avoid adverse effects such as local depression on the product shape, and the sand holes are preferably arranged unevenly to avoid the influence of too regular arrangement on the support strength of the core body 1. A medium inlet structure 4 is provided in the center of the core body 1, and a vent valve structure 5 is also provided at the edge of the core body 1. The vent valve structure 5 may include multiple vent valves, such as Figure 2 or Figure 3As shown, it is composed of two or four air relief valves, which is more uniform and avoids one air relief valve being blocked and unable to exhaust. The medium inlet structure 4 and the air relief valve structure 5 are respectively connected to the heat dissipation ring 2. The internal structure of the core body 1 is a honeycomb structure, and the honeycomb structure is connected to the heat dissipation ring 2. In this way, it does not affect the supporting hardness of the annular model surface 11 on the surface of the core body 1, and can make the cooling medium of the heat dissipation ring 2 as close to the annular model surface 11 as possible, so as to take away the temperature more quickly and efficiently; the heat dissipation ring 2 can also be directly set close to the annular model surface 11, but when the material strength of the core body 1 is too poor or the processing pressure of the spinning machine is too large, it is easy to cause the annular model surface 11 to collapse.

[0025] A mounting through hole 6 is provided at the center of the mold core body 1 , and a circular stepped platform is provided in the middle of the mounting through hole 6 , and the medium inlet structure 4 is arranged around the circular stepped platform.

[0026] The above-mentioned air release valve structure 5 includes a valve body 51, a valve 52, a valve pressure limiting spring 53, a piston sleeve 54 and an adjusting tail sleeve 55. A connecting cavity is provided in the valve body 51, and a contraction port is provided in the connecting cavity. The valve 52 acts on one side of the contraction port. The piston sleeve 54 is connected to the valve 52, and the connecting part of the two has a cavity connected to the inside of the piston sleeve 54. The piston sleeve 54 is slidably installed in the connecting cavity. An internal thread is also provided at the end of the connecting cavity. An external thread is provided on the outer side of the adjusting tail sleeve 55. The adjusting tail sleeve 55 can be adjusted at the end of the connecting cavity by matching the external thread with the internal thread. The two ends of the valve pressure limiting spring 53 are respectively connected to the piston sleeve 54 and the adjusting tail sleeve 55.

[0027] Implementation principle: cold air or cooling water is continuously delivered to the middle heat dissipation ring 2 through the medium inlet structure 4, directly or indirectly taking away the heat of the workpiece on the annular model surface 11 that has been spun through the honeycomb holes or local sand holes, and these media with heat are transmitted to the outer heat dissipation ring 2 and discharged through the corresponding sand hole group 3. The discharged media is directly facing the unprocessed part of the workpiece, which plays a role in preheating the unprocessed part, so that the subsequent part spinning is more efficient and high-quality, and the workpiece part that has been spun will cover and block the corresponding sand hole group 3. This effect can be achieved by attaching an oil film to the uneven surface of the material. After the workpiece is completely processed, the increase in air pressure in the heat dissipation ring 2 will cause the deflation valve structure 5 to deflate to ensure safety, and at the same time, it can be used to quickly determine whether the workpiece is completely formed and fitted. Since the heat of the high-temperature part of the workpiece that has been processed can be discharged while processing, the time for removing the workpiece is greatly shortened, and the processing efficiency is higher. In the process of taking the formed workpiece, since the sand hole group 3 has a certain repulsive force on the external workpiece, it can avoid the formed workpiece from adhering to the annular model surface 11, which is convenient for removing the formed workpiece.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood 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 the scope of the present invention shall be defined by the appended claims.

Claims

1. A heat dissipation mold core structure for a spinning machine, comprising a mold core body (1), wherein the mold core body (1) has an annular mold surface (11), wherein the annular mold surface (11) is in a gradual and / or stepped shape, and is characterized in that: Heat dissipation loops (2) are evenly arranged inside the mold core body (1). The heat dissipation loops (2) are respectively arranged on the inner sides of annular model surfaces (11) of different gradient shapes and / or step shapes, and all the heat dissipation loops (2) are connected. The heat dissipation loops (2) are used to remove heat from the annular model surface (11) through a cooling medium. A sand hole group (3) is opened on the annular model surface (11), and the sand hole group (3) is connected to the corresponding heat dissipation loop (2). A medium inlet structure (4) is provided at the center of the mold core body (1), and a gas relief valve structure (5) is also provided at the edge of the mold core body (1). The medium inlet structure (4) and the gas relief valve structure (5) are respectively connected to the heat dissipation loop (2).

2. The heat dissipation mold core structure for a spinning machine according to claim 1, characterized in that: A mounting through hole (6) is provided at the center of the mold core body (1), and a circular stepped platform is provided in the middle of the mounting through hole (6), and the medium inlet structure (4) is arranged around the circular stepped platform.

3. The heat dissipation mold core structure for a spinning machine according to claim 1 or 2, characterized in that: The internal structure of the mold core body (1) is a honeycomb structure, and the honeycomb structure is connected to the heat dissipation loop (2).

4. The heat dissipation mold core structure for a spinning machine according to claim 3, characterized in that: The cooling medium injected into the heat dissipation loop (2) is cold air or cooling water.

5. The heat dissipation mold core structure for a spinning machine according to any one of claims 1, 2 or 4, characterized in that: The air release valve structure (5) comprises a valve body (51), a valve (52), a valve pressure limiting spring (53), a piston sleeve (54) and an adjusting tail sleeve (55); a connecting cavity is provided in the valve body (51), the connecting cavity has a contraction port, the valve (52) acts on a side of the contraction port, the piston sleeve (54) is connected to the valve (52), the piston sleeve (54) is slidably installed in the connecting cavity, the end of the connecting cavity is also provided with an internal thread, the outer side surface of the adjusting tail sleeve (55) is provided with an external thread, the adjusting tail sleeve (55) can be adjusted at the end of the connecting cavity by the external thread and the internal thread, and the two ends of the valve pressure limiting spring (53) are respectively connected to the piston sleeve (54) and the adjusting tail sleeve (55).

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