Extrusion head for extruder

Abstract

The extrusion head comprises a fixed pad, an expansion ring, a movable supporting block, a locking mechanism and a connecting bolt, one end of the fixed pad is provided with a containing hole, the other end of the fixed pad is provided with an insertion part, and the side wall of the fixed pad is provided with an exhaust hole communicated with the containing hole; the expansion ring is arranged on the insertion part in a sleeving manner; the movable supporting block abuts against the expansion ring. The locking mechanism is used for fixing the movable supporting block and the fixing pad. One end of the connecting bolt is fixedly inserted into the containing hole, and the other end of the connecting bolt is used for being connected with an extruding rod of an extruding machine. The extrusion head device for the extruder provided by the utility model has the beneficial effects that when the extrusion head device is used, when air in the accommodating hole expands due to high temperature and high pressure, the air can be exhausted through the exhaust hole, so that the accommodating hole can be prevented from being broken due to a high-pressure working condition, and the service life of the extrusion head is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of extruder accessories, in particular to an extrusion head used for an extruder. Background Art

[0002] Metal extruder is an important equipment that uses the principle of metal plastic forming to perform pressure processing. It processes metal ingots into tubes, rods, T-shaped, L-shaped and other profiles at one time through extrusion.

[0003] The extrusion head is one of the core components of the metal extruder. When the existing extrusion head (such as the Chinese utility model patent with publication number CN207735357U) is in use, a receiving hole for accommodating the connecting bolts is opened in the fixing seat. When the extrusion head is in use, since the extrusion head is in a high temperature and high pressure environment, the air in the receiving hole expands violently, which can easily cause the extrusion head to rupture and be damaged. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies and to provide an extrusion head for an extruder, so as to solve the technical problem in the prior art that the extrusion head is placed in a high temperature and high pressure environment, and the air in the containing hole expands violently, which easily leads to the rupture and damage of the extrusion head.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides an extrusion head for an extruder, comprising: a fixed pad, one end of which is provided with a receiving hole, the other end of which is provided with an insertion portion, and a side wall of which is provided with an exhaust hole connected with the receiving hole;

[0007] An expansion ring, the expansion ring is sleeved on the insertion portion;

[0008] A movable support block, the movable support block being supported against the expansion ring;

[0009] a locking mechanism, the locking mechanism being used to fix the movable support block to the fixed pad; and,

[0010] A connecting bolt, one end of which is fixedly inserted into the accommodating hole, and the other end of which is used to be connected to an extrusion rod of an extruder.

[0011] In some embodiments, a through hole connected to the accommodating hole is formed on the insertion portion; the movable support block includes an insertion rod and a pressure block, the insertion rod is inserted into the through hole, the pressure block is fixed to the insertion rod, and the pressure block is pressed on the expansion ring; the locking mechanism includes a locking nut, the locking nut is threadedly sleeved on the insertion rod, and the locking nut is located in the accommodating hole and abuts against the inner wall of the accommodating hole.

[0012] In some embodiments, a tapered hole is formed at one end of the expansion ring, and the side wall of the pressing block is tapered and fits with the inner wall of the tapered hole.

[0013] In some embodiments, a fixing ring is formed on the inner wall of the locking nut, and a plurality of slots are formed on one end face of the fixing ring; a threaded hole is formed on the end face of the insertion rod; the locking mechanism also includes a clamping block and a locking screw, the clamping block is clamped in the slot, a clearance hole is formed in the center of the clamping block, and the locking screw passes through the clearance hole and is threadedly connected to the threaded hole.

[0014] In some embodiments, a positioning hole is further provided on the insertion portion; the movable support block further includes a positioning pin, the positioning pin is fixed to the pressing block, and the positioning pin is used to be inserted into the positioning hole.

[0015] In some embodiments, a limiting groove is provided on the outer side wall of the inserting portion; a limiting protrusion matching with the limiting groove is formed on the inner side wall of the expansion ring, and the limiting protrusion is inserted into the limiting groove.

[0016] In some embodiments, a telescopic groove is provided on the outer side wall of the expansion ring.

[0017] In some embodiments, an insertion hole is provided on the side wall of the connecting bolt, a fixing screw hole connected to the accommodating hole is provided on the side wall of the fixing pad, and the extrusion head for the extruder also includes a fixing screw, the fixing screw thread is inserted in the fixing screw hole, and the end of the fixing screw is inserted in the insertion hole.

[0018] In some embodiments, a receiving groove is formed at the opening of the fixing screw hole, and the screw head of the fixing screw is located in the receiving groove.

[0019] In some embodiments, a middle hole is formed at one end of the connecting bolt.

[0020] Compared with the prior art, the extrusion head device for an extruder provided by the utility model has the following beneficial effects: during use, when the air in the accommodating hole expands due to high temperature and high pressure, the air will be discharged through the exhaust hole, thereby avoiding breakage due to high pressure conditions in the accommodating hole and extending the service life of the extrusion head; at the same time, when the expansion ring is damaged and needs to be replaced, the locking mechanism can be disassembled first, and then the movable support block and the damaged expansion ring can be taken out, and then a new expansion ring can be installed in the insertion part, and then the movable support block can be installed, and finally the movable support block can be fixed to the fixed pad through the locking mechanism, thereby realizing the separate replacement of the expansion ring, without replacing the entire extrusion head, and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an extrusion head for an extruder provided by one embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A schematic diagram of the structure of the fixed pad in FIG.

[0023] Figure 3 yes Figure 1 A local enlarged view of area A in FIG.

[0024] Figure 4 yes Figure 1 A schematic diagram of the structure of the locking nut in FIG.

[0025] Figure 5 yes Figure 4 Right side view of the lock nut in .

[0026] Explanation of the accompanying drawings: 1-fixing pad, 11-accommodating hole, 12-insertion part, 121-through hole, 122-positioning hole, 123-limiting groove, 13-exhaust hole, 14-fixing screw hole, 2-expansion ring, 21-limiting protrusion, 22-telescopic groove, 3-movable support block, 31-insertion rod, 311-threaded hole, 32-pressure block, 33-positioning pin, 4-locking mechanism, 41-locking nut, 411-fixing ring, 412-slot, 42-clamping block, 43-locking screw, 5-connecting bolt, 51-middle hole, 6-fixing screw. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] In order to solve the technical problem that the air in the accommodating hole expands violently and easily causes the extrusion head to be broken and damaged, the utility model provides an extrusion head for an extruder, which can extend the service life of the extrusion head.

[0029] It should be noted that the extrusion head for an extruder described in the utility model is used for but not limited to metal extruders, etc. For the convenience of explanation, in the utility model, only the extrusion head for an extruder is applied to a metal extruder device as an example for explanation, and the principle of applying the extrusion head for an extruder to other types of equipment is substantially the same as the principle applied to the metal extruder device, which will not be described in detail here.

[0030] See also Figure 1 and Figure 2 , Figure 1It is a schematic structural diagram of an extrusion head for an extruder in an embodiment of the utility model. The extrusion head for the extruder comprises a fixed pad 1, an expansion ring 2, a movable support block 3, a locking mechanism 4 and a connecting bolt 5.

[0031] A receiving hole 11 is formed at one end of the fixing pad 1 , an inserting portion 12 is formed at the other end of the fixing pad 1 , and a vent hole 13 communicating with the receiving hole 11 is formed on a side wall of the fixing pad 1 .

[0032] The expansion ring 2 is sleeved on the insertion portion 12. The movable support block 3 is supported on the expansion ring 2. The locking mechanism 4 is used to fix the movable support block 3 to the fixed pad 1; one end of the connecting bolt 5 is fixedly inserted in the receiving hole 11, and the other end of the connecting bolt 5 is used to connect with the extrusion rod of the extruder.

[0033] During use, when the air in the accommodating hole 11 expands due to high temperature and high pressure, the air will be discharged through the exhaust hole 13, thereby avoiding the high-pressure working condition in the accommodating hole 11 and breaking, thereby extending the service life of the extrusion head; at the same time, when the expansion ring 2 is damaged and needs to be replaced, the locking mechanism 4 can be disassembled first, and then the movable support block 3 and the damaged expansion ring 2 can be taken out, and then the new expansion ring 2 can be installed in the insertion part 12, and then the movable support block 3 can be installed, and finally the movable support block 3 is fixed to the fixed pad 1 through the locking mechanism 4, thereby realizing the separate replacement of the expansion ring 2, without replacing the entire extrusion head, which can reduce production costs.

[0034] In one embodiment, see Figure 1-Figure 3 The insertion portion 12 is provided with a through hole 121 connected to the receiving hole 11; the movable support block 3 includes an insertion rod 31 and a pressure block 32, the insertion rod 31 is inserted into the through hole 121, the pressure block 32 is fixed to the insertion rod 31, and the pressure block 32 is pressed on the expansion ring 2; the locking mechanism 4 includes a locking nut 41, the locking nut 41 is threadedly sleeved on the insertion rod 31, the locking nut 41 is located in the receiving hole 11 and abuts against the inner wall of the receiving hole 11. In this embodiment, the insertion rod 31 is locked by the locking nut 41, so that the movable support block 3 can be fixed.

[0035] In one embodiment, see Figure 1 A conical hole is formed at one end of the expansion ring 2, and the side wall of the pressing block 32 is conical and fits with the inner wall of the conical hole. By making the side wall of the pressing block 32 conical, the expansion ring 2 can be better compressed.

[0036] In one embodiment, see Figure 1-Figure 5A fixing ring 411 is formed on the inner wall of the locking nut 41, and a plurality of slots 412 are formed on one end surface of the fixing ring 411; a threaded hole 311 is formed on the end surface of the insertion rod 31; the locking mechanism 4 also includes a clamping block 42 and a locking screw 43, the clamping block 42 is clamped in the slot 412, a clearance hole is formed in the center of the clamping block 42, and the locking screw 43 passes through the clearance hole and is threadedly connected to the threaded hole 311.

[0037] In this embodiment, during installation, the insertion rod 31 is first inserted into the through hole 121 of the fixing pad 1, and then the locking nut 41 is tightened on the insertion rod 31 to lock the insertion rod 31, and then the clamping block 42 is clamped in the clamping groove 412 of the locking nut 41, and then the locking screw 43 is passed through the clearance hole and threadedly connected to the threaded hole 311, so that the clamping block 42 is fixed to the insertion rod 31. In this embodiment, by setting the clamping block 42 and the locking screw 43, the locking nut 41 can be clamped to prevent the locking nut 41 from loosening.

[0038] In one embodiment, see Figure 1 and Figure 2 The insertion portion 12 is also provided with a positioning hole 122; the movable support block 3 also includes a positioning pin 33, which is fixed to the pressure block 32 and is used to be inserted into the positioning hole 122. In this embodiment, the positioning pin 33 is provided to prevent the pressure block 32 from rotating.

[0039] In one embodiment, see Figure 1 and Figure 2 A limiting groove 123 is provided on the outer side wall of the inserting portion 12 ; a limiting protrusion 21 matching with the limiting groove 123 is formed on the inner side wall of the expansion ring 2 , and the limiting protrusion 21 is inserted into the limiting groove 123 .

[0040] In one embodiment, see Figure 1 A telescopic groove 22 is provided on the outer side wall of the expansion ring 2 to facilitate the expansion of the expansion ring 2.

[0041] In one embodiment, see Figure 1 and Figure 2 An insertion hole is provided on the side wall of the connecting bolt 5, a fixing screw hole 14 connected to the accommodating hole 11 is provided on the side wall of the fixing pad 1, and the extrusion head for the extruder also includes a fixing screw 6, which is threadedly inserted in the fixing screw hole 14, and the end of the fixing screw 6 is inserted in the insertion hole.

[0042] In one embodiment, see Figure 1 and Figure 2A receiving groove is formed at the opening of the fixing screw hole 14, and the screw head of the fixing screw 6 is located in the receiving groove.

[0043] In one embodiment, see Figure 1 and Figure 2 One end of the connecting bolt 5 is provided with a middle hole 51.

[0044] In order to better understand the present invention, the following Figures 1 to 5 The technical solution of the utility model is described in detail: when in use, when the air in the accommodating hole 11 expands due to high temperature and high pressure, the air will be discharged through the exhaust hole 13, thereby avoiding the high-pressure working condition in the accommodating hole 11 and breaking, thereby extending the service life of the extrusion head; at the same time, when the expansion ring 2 is damaged and needs to be replaced, the locking mechanism 4 can be disassembled first, and then the movable support block 3 and the damaged expansion ring 2 can be taken out, and then the new expansion ring 2 can be installed in the insertion part 12, and then the movable support block 3 can be installed, and finally the movable support block 3 is fixed to the fixed pad 1 through the locking mechanism 4, thereby realizing the separate replacement of the expansion ring 2, without replacing the entire extrusion head, which can reduce production costs.

[0045] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An extrusion head for an extruder, characterized in that: include: A fixing pad, wherein a receiving hole is formed at one end of the fixing pad, an insertion portion is formed at the other end of the fixing pad, and a vent hole connected to the receiving hole is formed on a side wall of the fixing pad; An expansion ring, the expansion ring is sleeved on the insertion portion; A movable support block, the movable support block being supported against the expansion ring; a locking mechanism, the locking mechanism being used to fix the movable support block to the fixed pad; and, A connecting bolt, one end of which is fixedly inserted into the accommodating hole, and the other end of which is used to be connected to an extrusion rod of an extruder.

2. The extrusion head for an extruder according to claim 1, characterized in that: The inserting portion is provided with a through hole communicating with the receiving hole; The movable support block includes an insertion rod and a pressure block, the insertion rod is inserted into the through hole, the pressure block is fixed to the insertion rod, and the pressure block is pressed on the expansion ring; The locking mechanism comprises a locking nut, which is threadedly sleeved on the insertion rod and is located in the receiving hole and abuts against the inner wall of the receiving hole.

3. The extrusion head for an extruder according to claim 2, characterized in that: A tapered hole is formed at one end of the expansion ring, and the side wall of the pressing block is tapered and fits with the inner wall of the tapered hole.

4. The extrusion head for an extruder according to claim 2, characterized in that: The inner wall of the locking nut is formed with a fixing ring, and one end surface of the fixing ring is provided with a plurality of slots; A threaded hole is provided on the end surface of the insertion rod; The locking mechanism also includes a clamping block and a locking screw. The clamping block is clamped in the clamping slot. A clearance hole is opened at the center of the clamping block. The locking screw passes through the clearance hole and is threadedly connected to the threaded hole.

5. The extrusion head for an extruder according to claim 2, characterized in that: The inserting portion is also provided with a positioning hole; The movable support block further comprises a positioning pin, which is fixed to the pressing block and is used to be inserted into the positioning hole.

6. The extrusion head for an extruder according to claim 1, characterized in that: A limiting groove is provided on the outer side wall of the inserting portion; A limiting protrusion matched with the limiting groove is formed on the inner side wall of the expansion ring, and the limiting protrusion is inserted into the limiting groove.

7. The extrusion head for an extruder according to claim 1, characterized in that: A telescopic groove is provided on the outer side wall of the expansion ring.

8. The extrusion head for an extruder according to claim 1, characterized in that: An insertion hole is provided on the side wall of the connecting bolt, a fixing screw hole connected to the accommodating hole is provided on the side wall of the fixing pad, and the extrusion head for the extruder also includes a fixing screw, the fixing screw thread is inserted in the fixing screw hole, and the end of the fixing screw is inserted in the insertion hole.

9. The extrusion head for an extruder according to claim 8, characterized in that: An accommodating groove is formed at the opening of the fixing screw hole, and the screw head of the fixing screw is located in the accommodating groove.

10. The extrusion head for an extruder according to claim 1, characterized in that: One end of the connecting bolt is provided with a middle hole.

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