Extrusion die working tape module convenient to replace
By using easily replaceable extrusion die working belt modules, with a modular structure and shape memory alloy material, the problem of needing to replace the entire die due to wear is solved. This enables rapid module replacement and temperature control, improving production efficiency and molding quality.
Patent Information
- Application Number
- CN202520152696.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-22
AI Technical Summary
When processing complex profiles, existing extrusion dies require the replacement of the entire die when the complex-shaped parts of the die's working zone wear out, which is inconvenient and affects the molding quality.
An easy-to-replace extrusion die working belt module was designed, which adopts a modular structure and shape memory alloy material, combined with cooling circulation pipes and fixing mechanism to achieve quick module replacement and temperature control.
It enables rapid module replacement, reduces standby time and operator labor, avoids impact on molding quality, and improves production efficiency and molding quality.
Smart Images

Figure CN223789225U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extrusion die technology, specifically to an extrusion die working belt module that is easy to replace. Background Technology
[0002] Extrusion dies are key equipment in the hot extrusion forming process of metals, and their quality and performance directly affect the quality, performance and production efficiency of metal products.
[0003] Chinese patent CN212190646U discloses an inlet sinking working belt mold, including an upper mold and a lower mold. The lower mold is vertically connected to the upper mold. Both the upper and lower molds are disc-shaped structures. An inlet sinking bridge is connected to the upper mold. A through hole is vertically provided on the lower mold. One end of the inlet sinking bridge extends into the through hole. An inlet sinking hole is provided on one side of the inlet sinking bridge. A butterfly-shaped bridge structure is connected to the upper mold. The upper mold has a vertical axis line penetrating the center of the circle and a horizontal axis line penetrating the center of the circle. However, this device still has the following problems in use:
[0004] When processing more complex profiles, the more complex-shaped parts of the mold working zone will wear out, requiring the entire mold to be replaced, which is quite inconvenient.
[0005] Based on this, the present invention designs an easy-to-replace extrusion die working belt module to solve the above problems. Utility Model Content
[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an easy-to-replace extrusion die working belt module.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] An easily replaceable extrusion die working belt module includes an upper module, a die core, an assembled working belt module, a replacement mechanism and a fixing mechanism, a lower die fixing block and a profile. The upper end of the upper module has multiple feed ports evenly spaced in a circular array. The die core is fixedly installed in the middle of the lower end of the upper module. A positioning post mounting plate for combining the upper module with the assembled working belt module is fixedly installed at the lower end of the upper module.
[0009] The modular working belt module is installed on the upper end of the lower mold fixing block; the modular working belt module consists of several modules, the module for forming the first forming part on the profile is set as the first working belt insert, the module for forming the second forming part on the profile is set as the second working belt insert, and the module for forming the third forming part on the profile is set as the third working belt insert; each module is slidably connected to the lower mold fixing block; each module is provided with a fixing mechanism that allows adjacent modules to be inserted into each other; the lower mold fixing block for fixing each module is installed on the upper outer side of the replacement mechanism;
[0010] Furthermore, the upper module has an internal feeding chamber that is connected to the feeding port;
[0011] Furthermore, the first working belt insert, the second working belt insert, and the third working belt insert are all equipped with cooling circulation pipes for injecting coolant, and the inlet and outlet of the cooling circulation pipes are connected to an external water pump.
[0012] Furthermore, all of the modules are made of shape memory alloy.
[0013] Furthermore, the mold core, together with the first working belt insert, the second working belt insert, and the third working belt insert, forms a mold cavity for raw material forming;
[0014] Furthermore, the replacement mechanism includes a slot and a plug, with a slot provided on one side of the module; a plug is fixedly installed on the other side of the module, and adjacent modules are connected by the slot and the plug.
[0015] Furthermore, the fixing mechanism includes a positioning post mounting groove, and the outer side of the module is provided with a positioning post mounting groove; the upper end of the lower mold fixing block is also provided with a number of positioning post mounting grooves corresponding to the positioning post mounting grooves provided on the module.
[0016] Furthermore, the fixing mechanism also includes a positioning column, which is inserted into the positioning column mounting groove. The upper end of the positioning column is fixedly connected to the lower end of the positioning column mounting plate by bolts, and the lower end of the positioning column passes through the positioning column mounting groove on the lower mold fixing block and is fixedly connected to the lower mold fixing block by bolts.
[0017] Compared with the prior art, the advantages of this utility model are as follows: Under normal working conditions, the first working belt insert, the second working belt insert, and the third working belt insert are all installed on the upper end of the changing mechanism; the fixing mechanism fixes the first working belt insert, the second working belt insert, and the third working belt insert to the upper end of the changing mechanism, preventing the first working belt insert, the second working belt insert, and the third working belt insert from moving during use and affecting the molding quality; then, the positioning post mounting plate on the lower side of the upper module is combined with the fixing mechanism, and the positioning post mounting plate, the fixing mechanism, and the lower mold fixing block are fixed with bolts; when the module wears out during use, the fixing mechanism is disassembled. The worn module can then be pulled out and replaced using the replacement mechanism. During use, the raw material is pressed in through the feed port, then flows into the feed chamber, and then into the mold cavity formed by the mold core and the replacement mechanism. The material is then extruded from the bottom of the replacement mechanism to form the profile. With the cooperation of the fixing mechanism and the lower mold fixing block, the worn module can be quickly replaced without completely disassembling the entire working belt module, reducing standby time and the additional labor of the operator. The cooling circulation pipes set inside the first working belt insert, the second working belt insert, and the third working belt insert prevent the module temperature from becoming too high during the forming process, thus avoiding deformation and affecting the forming quality. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This utility model provides a three-dimensional extrusion die working belt module that is easy to replace. Figure 1 ;
[0020] Figure 2 This is a front view of a replaceable extrusion die working belt module according to the present invention.
[0021] Figure 3 This utility model provides a three-dimensional extrusion die working belt module that is easy to replace. Figure 2 ;
[0022] Figure 4 This utility model provides a three-dimensional extrusion die working belt module that is easy to replace. Figure 3 ;
[0023] Figure 5 For along Figure 2 A three-dimensional image with a portion removed along the AA direction;
[0024] Figure 6 This is a 3D view of the profile.
[0025] The labels in the diagram represent:
[0026] 1. Upper module; 11. Feed inlet; 12. Feeding cavity; 13. Positioning post mounting plate; 2. Mold core; 3. Assembled working belt module; 31. First working belt insert; 32. Second working belt insert; 33. Third working belt insert; 4. Changing mechanism; 41. Slot; 42. Insert; 5. Fixing mechanism; 51. Positioning post mounting groove; 52. Positioning post; 6. Lower mold fixing block; 7. Cooling circulation pipe; 8. Profile; 81. First forming part; 82. Second forming part; 83. Third forming part. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0028] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.
[0029] In some embodiments, please refer to the accompanying drawings. Figures 1-6 An easily replaceable extrusion die working belt module includes an upper module 1, a die core 2, an assembled working belt module 3, a replacement mechanism 4, a fixing mechanism 5, a lower die fixing block 6, a cooling circulation pipe 7, and a profile 8. The upper end of the upper module 1 has multiple feed ports 11 evenly spaced in a circular array. The die core 2 is fixedly installed in the middle of the lower end of the upper module 1. The upper module 1 has a feed cavity 12 inside, which is connected to the feed ports 11. A positioning post mounting plate 13 for assembling the upper module 1 with the assembled working belt module 3 is fixedly installed at the lower end of the upper module 1.
[0030] The modular working belt module 3 is installed on the upper end of the lower mold fixing block 6; the modular working belt module 3 is composed of several modules, in which the module used to form the first forming part 81 on the profile 8 is set as the first working belt insert 31, the module used to form the second forming part 82 on the profile 8 is set as the second working belt insert 32, and the module used to form the third forming part 83 on the profile 8 is set as the third working belt insert 33; each module is slidably connected to the lower mold fixing block 6; each module is provided with a fixing mechanism 5 that allows adjacent modules to be inserted into each other; the lower mold fixing block 6 for fixing each module is installed on the outer side of the upper end of the replacement mechanism 4;
[0031] The first working belt insert 31, the second working belt insert 32 and the third working belt insert 33 are all equipped with cooling circulation pipes 7 for injecting coolant. The inlet and outlet of the cooling circulation pipes 7 are connected to an external water pump.
[0032] The mold core 2, together with the first working belt insert 31, the second working belt insert 32, and the third working belt insert 33, forms a mold cavity for raw material forming.
[0033] All modules are made of shape memory alloy, which gives the mold a certain degree of self-adjustment capability to adapt to temperature and pressure changes during the molding process.
[0034] In this invention, under normal mold operating conditions, the first working belt insert 31, the second working belt insert 32, and the third working belt insert 33 are all installed on the upper end of the changing mechanism 4. The fixing mechanism 5 fixes the first working belt insert 31, the second working belt insert 32, and the third working belt insert 33 to the upper end of the changing mechanism 4, preventing the first working belt insert 31, the second working belt insert 32, and the third working belt insert 33 from moving during use and affecting the molding quality. Subsequently, the positioning post mounting plate 13 on the lower side of the upper module 1 is combined with the fixing mechanism 5, and the positioning post mounting plate 13, the fixing mechanism 5, and the lower mold fixing block 6 are fixed with bolts. When the module experiences wear during use, the fixing mechanism 5 is disassembled. The worn module can then be pulled out and replaced using the replacement mechanism 4. During use, the raw material is pressed in through the feed port 11, then flows into the feed chamber 12, and then into the mold cavity formed by the mold core 2 and the replacement mechanism 4. The profile 8 is then extruded from the bottom of the replacement mechanism 4. With the cooperation of the fixing mechanism 5 and the lower mold fixing block 6, the worn module can be quickly replaced without completely disassembling the entire working belt module, reducing standby time and reducing the operator's extra labor. The cooling circulation pipes 7 set inside the first working belt insert 31, the second working belt insert 32 and the third working belt insert 33 prevent the profile 8 from deforming due to excessive module temperature during the molding process, thus affecting the molding quality.
[0035] The replacement mechanism 4 includes a slot 41 and a plug 42. A slot 41 is provided on one side of the module; a plug 42 is fixedly installed on the other side of the module, and adjacent modules are connected by the slot 41 and the plug 42.
[0036] The fixing mechanism 5 includes a positioning post mounting groove 51 and a positioning post 52. The outer side of the module is provided with a positioning post mounting groove 51. The upper end of the lower mold fixing block 6 is also provided with a number of positioning post mounting grooves 51 corresponding to the positioning post mounting grooves 51 provided on the module. The positioning post 52 is inserted into the positioning post mounting groove 51, and the upper end of the positioning post 52 is fixedly connected to the lower end of the positioning post mounting plate 13 by bolts. The lower end of the positioning post 52 passes through the positioning post mounting groove 51 on the lower mold fixing block 6 and is fixedly connected to the lower mold fixing block 6 by bolts.
[0037] In this utility model, since the shape of the first forming part 81 on the profile 8 is relatively complex, the first working strip insert 31 is prone to wear during the forming process. When the module is worn, the lower end of the positioning post 52 corresponding to the module is disassembled and separated from the lower mold fixing block 6, and the upper end of the positioning post 52 is disassembled and separated from the positioning post mounting plate 13. Then, the positioning post 52 is pulled down until the positioning post 52 leaves the positioning post mounting groove 51 provided on the module. The worn module is then pulled outward. One side slot 41 of the worn module moves along the insert 42 of the adjacent module, and the other side of the insert 42 of the worn module moves along the slot 41 of another adjacent module until the worn module is completely removed and replaced.
[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A replaceable extrusion die belt module comprising an upper module (1), characterised in that: It also includes a mold core (2), an assembled working belt module (3), a replacement mechanism (4) and a fixing mechanism (5), a lower mold fixed block (6) and a profile (8), the upper end of the upper module (1) is uniformly arranged with a plurality of feeding ports (11) in a circumferential array at equal intervals; the mold core (2) is fixedly installed at the lower end of the upper module (1); the lower end of the upper module (1) is fixedly installed with a positioning column mounting plate (13) for combining the upper module (1) with the assembled working belt module (3); The assembled working belt module (3) is installed at the upper end of the lower mold fixed block (6); the assembled working belt module (3) is composed of a plurality of modules, the module for forming the first forming part (81) on the profile (8) is arranged as a first working belt plug-in block (31), the module for forming the second forming part (82) on the profile (8) is arranged as a second working belt plug-in block (32), and the module for forming the third forming part (83) on the profile (8) is arranged as a third working belt plug-in block (33); each module is in sliding connection with the lower mold fixed block (6); each module is provided with a fixing mechanism (5) for cooperating with the adjacent module; the upper end of the replacement mechanism (4) is provided with a lower mold fixed block (6) for fixing each module.
2. The easily replaceable extrusion die shoe module of claim 1 wherein, The inside of the upper module (1) is provided with a feeding cavity (12) in communication with the feeding port (11).
3. The easily replaceable extrusion die shoe module of claim 1 wherein, The first working belt plug-in block (31), the second working belt plug-in block (32) and the third working belt plug-in block (33) are all provided with a cooling circulation pipeline (7) for injecting cooling liquid, and the water inlet end and the water outlet end of the cooling circulation pipeline (7) are connected with an external water pump.
4. The easily replaceable extrusion die shoe module of claim 1 wherein, The modules are all made of memory alloy material.
5. The easily replaceable extrusion die shoe module of claim 1 wherein, The mold core (2), the first working belt plug-in block (31), the second working belt plug-in block (32) and the third working belt plug-in block (33) form a mold cavity for raw material forming.
6. The easily replaceable extrusion die shoe module of claim 1 wherein, The replacement mechanism (4) includes a slot (41) and a plug-in block (42), one side of the module is provided with the slot (41); the other side of the module is fixedly installed with the plug-in block (42), and adjacent modules are inserted through the slot (41) and the plug-in block (42).
7. The easily replaceable extrusion die shoe module of claim 6 wherein, The fixing mechanism (5) includes a positioning column mounting groove (51), and the outer side of the module is provided with the positioning column mounting groove (51); the upper end of the lower mold fixed block (6) is also provided with a plurality of positioning column mounting grooves (51) corresponding to the positioning column mounting grooves (51) provided on the module.
8. The easily replaceable extrusion die shoe module of claim 7, wherein, The fixing mechanism (5) also includes a positioning column (52), the positioning column (52) is inserted into the positioning column mounting groove (51), and the upper end of the positioning column (52) is fixedly connected with the lower end of the positioning column mounting plate (13) through bolts, and the lower end of the positioning column (52) passes through the positioning column mounting groove (51) on the lower mold fixed block (6) and is fixedly connected with the lower mold fixed block (6) through bolts.
Citation Information
Patent Citations
Inlet sinking working belt mold
CN212190646U