Extrusion die capable of achieving rapid shaping
By introducing cooling medium grooves and medium channels into the extrusion die, the problem of slow cooling and shaping in traditional dies has been solved, achieving rapid shaping and efficient molding, thus improving production efficiency and product quality.
Patent Information
- Application Number
- CN202520026269.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-06
AI Technical Summary
Traditional extrusion dies have long cooling and setting times, resulting in poor setting effects, low production efficiency, and easy deformation of profiles, which affects product quality.
A rapid-setting extrusion die is designed, comprising a front die, a rear die, and a shaping die connected in sequence. The front die has a flow distribution cavity, the rear die has a forming cavity, and the shaping die has a cooling medium tank and a medium channel. The molten metal is efficiently heat-exchanged through the cooling medium tank. Combined with a sealing component to seal the groove, the input and output of the cooling medium are ensured, reducing heat exchange between the front die and the shaping die and improving cooling efficiency.
It enables rapid solidification and molding of molten metal, provides stable shaping, avoids profile deformation, improves production efficiency and molding accuracy, extends mold life, and ensures product quality.
Smart Images
Figure CN223733555U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to extrusion die technical field, in particular to a kind of extrusion die of quick setting. BACKGROUND
[0002] In metal processing industry, extrusion die is one of the key equipment for producing metal products of various shapes and sizes, such as metal profile processing is to send the round casting bar heated to a certain temperature into the extruder for extrusion forming.
[0003] The traditional extrusion die mainly includes front die and back die, a shunt mechanism is arranged on the front die to shunt the metal melt, and a forming structure is arranged on the back die to shape the metal melt. The traditional extrusion die has the problems of long cooling and shaping time and poor shaping effect, resulting in low production efficiency, and the output profile is prone to deformation due to insufficient shaping, affecting the quality of the final product. SUMMARY
[0004] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides an extrusion die for quick setting, which has the advantages of fast setting speed, good setting effect, high production efficiency and good product quality.
[0005] According to the extrusion die for quick setting of the utility model embodiment, the front die is provided with a shunt cavity, the side of the front die close to the back die is provided with a forming module, the back die is provided with a first forming cavity, the side of the back die away from the front die is provided with a plugging piece, the setting die is provided with a second forming cavity matched with the first forming cavity, the opposite ends of the first forming cavity are connected with the shunt cavity and the second forming cavity respectively, the forming module is arranged in the first forming cavity and the second forming cavity, the side of the setting die close to the back die is provided with a cooling medium groove, the cooling medium groove surrounds the second forming cavity, the setting die is further provided with a medium inlet channel and a medium outlet channel connected with the cooling medium groove, the end of the medium inlet channel away from the cooling medium groove is used to connect an external cooling medium recovery device, the end of the medium outlet channel away from the cooling medium groove is used to connect an external cooling medium supply device, and the plugging piece is sealed in the slot of the cooling medium groove.
[0006] According to the extrusion die for quick setting of some embodiments of the utility model, the side of the back die close to the setting die is further provided with an elastic sealing gasket, the elastic sealing gasket surrounds the plugging piece, and the elastic sealing gasket abuts between the setting die and the back die.
[0007] According to the extrusion die for quick setting of some embodiments of the utility model, the side of the back die close to the setting die is further provided with a receiving groove, the elastic sealing gasket is arranged in the receiving groove, and the groove depth of the receiving groove is less than the thickness of the elastic sealing gasket.
[0008] According to the extrusion die for rapid shaping of some embodiments of the utility model, the cooling medium groove is open loop circular arc shape, two medium inlet channels are equipped, two medium inlet channels are connected to opposite ends of the cooling medium groove respectively, and the medium outlet channel is connected to the center of the cooling medium groove.
[0009] According to the extrusion die for rapid shaping of some embodiments of the utility model, the side of the front die far from the rear die is provided with an input cavity, and the input cavity is connected to one end of the shunt cavity far from the rear die.
[0010] According to the extrusion die for rapid shaping of some embodiments of the utility model, the center of the forming module is provided with a heat dissipation cavity, and the inner wall of the heat dissipation cavity is connected with a plurality of heat dissipation blades.
[0011] According to the extrusion die for rapid shaping of some embodiments of the utility model, the side of the forming module close to the shunt cavity is provided with a guide inclined plane.
[0012] The extrusion die for rapid shaping according to the utility model has at least the following beneficial effects: the cooling medium in the cooling medium groove can realize high-efficiency heat exchange with the metal melt in the second forming cavity, the metal melt can be rapidly solidified and formed in the second forming cavity, the forming effect is more stable and consistent, the production efficiency is high, and the deformation of the profile output by the extrusion forming due to poor shaping effect can be effectively avoided.
[0013] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0014] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:
[0015] Figure 1 It is a three-dimensional structure schematic view of the extrusion die for rapid shaping of the utility model embodiment;
[0016] Figure 2 It is the three-dimensional structure schematic diagram of the quick setting extrusion die in another perspective of the embodiment of the utility model;
[0017] Figure 3 It is the internal structure schematic diagram of the quick setting extrusion die of the embodiment of the utility model;
[0018] Figure 4 It is the exploded structure schematic diagram of the quick setting extrusion die of the embodiment of the utility model;
[0019] Figure 5 It is the exploded structure schematic diagram of the quick setting extrusion die in another perspective of the embodiment of the utility model.
[0020] Reference signs:
[0021] Front die 1, split chamber 11, forming module 12, input chamber 13, heat dissipation chamber 14, heat dissipation blade 15, guide inclined plane 16, rear die 2, first forming chamber 21, plugging piece 22, elastic sealing gasket 23, storage groove 24, setting die 3, second forming chamber 31, cooling medium groove 32, medium inlet passage 33, medium outlet passage 34. DETAILED DESCRIPTION
[0022] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be described clearly and completely in the following with reference to the drawings in the embodiment of the utility model. Obviously, the following described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.
[0023] In the description of the utility model, it should be understood that when one component is considered to be "connected" to another component, it can be directly connected to another component or there can be a component arranged in the middle. When one component is considered to be "arranged on" another component, it can be directly arranged on another component or there can be a component arranged in the middle.
[0024] In addition, the terms "long", "short", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model, and do not indicate or imply that the device or element referred to must have this particular orientation, be constructed in this particular orientation, and be operated in this particular orientation. It cannot be understood as a limitation of the utility model.
[0025] The traditional extrusion die mainly comprises a front die and a rear die, a shunt mechanism is arranged on the front die to shunt the metal melt, and a forming structure is arranged on the rear die to shape the metal melt. The traditional extrusion die has the problems of long cooling and shaping time and poor shaping effect, resulting in low production efficiency, and the shaped section after outputting is prone to deformation due to insufficient shaping, thereby affecting the quality of the final product. Especially when processing high-temperature metal melt, the cooling efficiency and shaping precision of the die become the key factors restricting the production efficiency. The existing die design usually lacks an efficient heat exchange mechanism, resulting in uneven cooling speed of the metal melt in the die, thereby affecting the quality and consistency of the final product.
[0026] The technical solutions of the utility model are further illustrated below in combination with the drawings and through specific embodiments.
[0027] With reference to Figures 1 to 5 The fast shaping extrusion die comprises a front die 1, a rear die 2 and a shaping die 3 connected in sequence, the front die 1 is provided with a shunt cavity 11, one side of the front die 1 close to the rear die 2 is provided with a forming module 12, the rear die 2 is provided with a first forming cavity 21, one side of the rear die 2 away from the front die 1 is provided with a blocking piece 22, the shaping die 3 is provided with a second forming cavity 31 matched with the first forming cavity 21, preferably, the length of the second forming cavity 31 is greater than that of the first forming cavity 21, the cross-sectional shape and size of the second forming cavity 31 are the same as those of the first forming cavity 21, the opposite ends of the first forming cavity 21 are connected with the shunt cavity 11 and the second forming cavity 31 respectively, the forming module 12 is arranged in the first forming cavity 21 and the second forming cavity 31, the forming module 12 forms a continuous extrusion forming chamber with the first forming cavity 21 and the second forming cavity 31 respectively, one side of the shaping die 3 close to the rear die 2 is provided with a cooling medium groove 32, the cooling medium groove 32 surrounds the second forming cavity 31, the cooling medium in the cooling medium groove 32 cools the metal melt in the second forming cavity 31 through the shaping die 3, which can effectively improve the shaping efficiency and effect, the shaping die 3 is further provided with a medium inlet channel 33 and a medium outlet channel 34 both connected with the cooling medium groove 32, one end of the medium inlet channel 33 away from the cooling medium groove 32 is used to connect an external cooling medium recovery device, for example, a water collecting tank with a water collecting pipe is one kind of cooling medium recovery device, one end of the medium outlet channel 34 away from the cooling medium groove 32 is used to connect an external cooling medium supply device, for example, a cold water tank with a cold water pipe and a water pump is one kind of cooling medium supply device, the cooling medium can be other media capable of realizing efficient heat exchange in addition to cold water, the blocking piece 22 is sealed in the slot of the cooling medium groove 32, so that only the two ends of the combined cooling medium groove 32 can input or output the cooling medium, which can effectively avoid the problem of liquid leakage.
[0028] By setting the cooling medium groove 32 on the sizing die 3, and connecting the external cooling medium supply device and the cooling medium recovery device, the cooling medium in the cooling medium groove 32 can realize efficient heat exchange with the metal melt in the second forming cavity 31 through the sizing die 3, the metal melt can be rapidly solidified and formed in the second forming cavity 31, and the forming effect is more stable and consistent, and the deformation of the profile output by the extrusion forming due to poor sizing effect can be effectively avoided. The extrusion die not only has fast and reliable sizing, but also has stable and reliable extrusion forming effect, and finally the quality of the product is good. By sealing the slot of the cooling medium groove 32 with the blocking piece 22, the problem of liquid leakage is effectively avoided, thereby prolonging the service life of the mold. In addition, the metal melt passes through the flow dividing cavity 11, the first forming cavity 21 and the second forming cavity 31 in turn, and the rear die 2 separates the front die 1 and the sizing die 3, which can significantly reduce the heat exchange between the front die 1 and the sizing die 3. While improving the cooling and sizing speed of the sizing die 3, the cooling effect on the front die 1 can be effectively reduced, the flowability of the metal melt in the flow dividing cavity 11 of the front die can be effectively ensured, and the metal melt can flow uniformly through the flow dividing cavity 11 and fill each area of the first forming cavity 21. Compared with the traditional technology of directly cooling the rear die 2, the extrusion die can effectively ensure the reliability of the extrusion forming, and has fast sizing speed, high forming precision and high quality of extrusion forming. The cooling medium groove 32 is designed around the second forming cavity 31, which ensures that the metal melt is uniformly and sufficiently cooled during the sizing process, which not only shortens the sizing time and improves the production efficiency, but also further ensures the sizing effect.
[0029] It can be understood that the side of the rear die 2 close to the sizing die 3 is also provided with an elastic sealing gasket 23, the elastic sealing gasket 23 surrounds the four around the blocking piece 22, the elastic sealing gasket 23 abuts between the sizing die 3 and the rear die 2, the elastic sealing gasket 23 is arranged in the peripheral area of the blocking piece 22, which can ensure the sealing performance of the mold combination, effectively avoid the leakage of the cooling medium in the cooling medium groove 32, and effectively improve the stability of the overall structure. By using the elastic characteristics of the elastic sealing gasket 23, the small gap that may be generated in the mold due to manufacturing tolerance, thermal expansion and other factors can be effectively compensated, and the reliability of the extrusion die structure can be effectively improved.
[0030] It can be understood that the side of the rear die 2 close to the sizing die 3 is also provided with a receiving groove 24, the receiving groove 24 surrounds the four around the blocking piece 22, the elastic sealing gasket 23 is arranged in the receiving groove 24, the depth of the receiving groove 24 is slightly smaller than the thickness of the elastic sealing gasket 23, and the difference between the depth of the receiving groove 24 and the thickness of the elastic sealing gasket 23 is 1-3mm. The position of the elastic sealing gasket 23 can be effectively limited by the receiving groove 24, and the stability of the overall structure is improved. The elastic sealing gasket 23 protrudes from the slot of the receiving groove 24, which can effectively ensure the abutting and sealing effect of the elastic sealing gasket 23 and the sizing die 3.
[0031] It can be understood that the cooling medium groove 32 is an open loop circular arc shape, that is, the cooling medium groove 32 is a C-shaped, the medium inlet channel 33 is provided with two, and the two medium inlet channels 33 are respectively connected to the opposite ends of the cooling medium groove 32. The medium outlet channel 34 is provided with one, and the medium outlet channel 34 is connected to the center of the cooling medium groove 32, that is, the medium outlet channel 34 is connected to the midpoint of the circular arc of the cooling medium groove 32.
[0032] By designing the cooling medium groove 32 as a unique open loop circular arc shape, and providing two medium inlet channels 33 at both ends, the cooling medium enters from the opposite ends of the cooling medium groove 32 at the same time, which can form a more uniform flow field in the groove, avoid the phenomenon of local overheating or overcooling, not only can effectively improve the cooling and shaping speed, but also can effectively improve the cooling and shaping effect. In order to ensure the outflow of the cooling medium and maintain the stability and continuity of the flow field in the cooling medium groove 32, the medium outlet channel 34 is connected to the center position of the cooling medium groove 32, that is, the top position of the C-shaped arc. It is not only beneficial to collect and export the cooling medium, but also can more effectively reduce the vortex and dead zone in the cooling medium groove 32, further improve the cooling efficiency, and then improve the molding effect and improve the production efficiency.
[0033] It can be understood that the side of the front mold 1 away from the rear mold 2 is provided with an input cavity 13, and the input cavity 13 is connected to the end of the shunt cavity 11 away from the rear mold 2. The input cavity 13 can effectively position the round casting rod, effectively improve the positioning accuracy of the feeding extrusion, reduce the positioning difficulty, and thus improve the production efficiency.
[0034] It can be understood that the center of the forming module 12 is provided with a heat dissipation cavity 14, and the inner wall of the heat dissipation cavity 14 is connected with a plurality of heat dissipation blades 15. By providing a special heat dissipation cavity 14 in the forming module 12 at the center area of the extrusion die and a series of heat dissipation blades 15, the heat generated during the operation of the module can be effectively managed and transferred, preventing performance degradation or damage caused by heat accumulation, and effectively improving the cooling and shaping efficiency of the metal melt in the second forming cavity 31.
[0035] It can be understood that the side of the forming module 12 close to the shunt cavity 11 is provided with a guide slope 16, and the guide slope 16 is inclined from the shunt cavity 11 away from the center of the forming module 12.
[0036] By optimizing the connection between the forming module 12 and the shunt cavity 11 through the guide slope 16, the stability and controllability of the flow of the metal melt from the shunt cavity 11 into the first forming cavity 21 are improved, and the guide slope 16 can effectively guide the fluid to smoothly transition from the shunt area to the inside of the module. This design helps to reduce turbulence and vortex of the fluid at the interface, reduces energy loss, and at the same time improves the uniformity of the distribution of the fluid inside the module.
[0037] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A rapid sizing extrusion die characterized by, The application relates to a die set for a plastic injection molding machine, which comprises a front die (1), a rear die (2) and a shaping die (3) connected in sequence, wherein the front die (1) is provided with a shunt cavity (11), the side of the front die (1) close to the rear die (2) is provided with a shaping module (12), the rear die (2) is provided with a first shaping cavity (21), the side of the rear die (2) away from the front die (1) is provided with a blocking piece (22), the shaping die (3) is provided with a second shaping cavity (31) matched with the first shaping cavity (21), the opposite ends of the first shaping cavity (21) are connected with the shunt cavity (11) and the second shaping cavity (31) respectively, the shaping module (12) is arranged in the first shaping cavity (21) and the second shaping cavity (31), the side of the shaping die (3) close to the rear die (2) is provided with a cooling medium groove (32) surrounding the second shaping cavity (31), the shaping die (3) is further provided with a medium inlet channel (33) and a medium outlet channel (34) both connected with the cooling medium groove (32), the end of the medium inlet channel (33) away from the cooling medium groove (32) is used for connecting an external cooling medium recovery device, the end of the medium outlet channel (34) away from the cooling medium groove (32) is used for connecting an external cooling medium supply device, and the blocking piece (22) is sealed to the groove opening of the cooling medium groove (32).
2. A quick sizing extrusion die according to claim 1, wherein, The side of the rear die (2) close to the shaping die (3) is further provided with an elastic sealing gasket (23) surrounding the blocking piece (22), and the elastic sealing gasket (23) abuts between the shaping die (3) and the rear die (2).
3. A quick set extrusion die according to claim 2, wherein The side of the rear die (2) close to the shaping die (3) is further provided with a receiving groove (24), and the elastic sealing gasket (23) is arranged in the receiving groove (24), wherein the groove depth of the receiving groove (24) is smaller than the thickness of the elastic sealing gasket (23).
4. The rapid sizing extrusion die of claim 1 wherein, The cooling medium groove (32) is in an open-loop circular arc shape, two medium inlet channels (33) are arranged at the opposite ends of the cooling medium groove (32) respectively, and the medium outlet channel (34) is connected to the center of the cooling medium groove (32).
5. A quick set extrusion die as claimed in claim 1 wherein, The side of the front die (1) away from the rear die (2) is provided with an input cavity (13) connected to the end of the shunt cavity (11) away from the rear die (2).
6. A quick set extrusion die according to claim 1 wherein, The center of the shaping module (12) is provided with a heat dissipation cavity (14), and the inner wall of the heat dissipation cavity (14) is connected with a plurality of heat dissipation blades (15).
7. A quick set extrusion die as claimed in claim 1 wherein, The side of the shaping module (12) close to the shunt cavity (11) is provided with a guide inclined surface (16).