Squeezing head convenient to assemble and disassemble

Abstract

The utility model discloses an extrusion head convenient to assemble and disassemble, which belongs to the technical field of extrusion heads and comprises a positioning block and a die head. The outer wall of the positioning block is provided with threads, the upper side of the positioning block is provided with a wide-end-up circular-truncated-cone-shaped first flow guide groove, the bottom side of the positioning block is provided with a containing groove, and the middle of the positioning block is provided with a threaded groove penetrating through the first flow guide groove and the containing groove; a threaded rod is fixedly mounted at the top of the die head, and a through glue outlet is formed in the middle of the die head and the threaded rod; the die head is inserted into the accommodating groove; the threaded rod is in threaded connection with the threaded groove; the first diversion trench is communicated with the glue outlet; when the die head needs to be replaced, the threaded rod can be screwed out of the threaded groove; therefore, the whole extrusion device does not need to be detached and replaced like an old cake-shaped design, so that the replacement is more convenient; due to the two-section flow guide inclination, the discharging is more uniform, and the diameter of the required sizing material is more accurate; the material extruding head device is integrally designed, so that the phenomenon of rubber material leakage in gaps among parts can be reduced.

Description

[Technical field]

[0001] The utility model relates to the technical field of extrusion heads, in particular to an extrusion head which is convenient for loading and unloading. [Background Technology]

[0002] One way to form FFKM rubber semi-finished products or products is to extrude the rubber melt through a die and then cool it to form; in this process, the extrusion die needs to make the rubber melt well distributed in the die flow channel so that it can be extruded and formed from the die at a uniform speed, reducing air bubbling and reducing product defective rate.

[0003] For example, Chinese patent CN217752683U discloses an extrusion die head, which includes a mouth die, a diverter cone and an adjustment component. An extrusion gap is provided between the inner wall of the mouth die and the outer wall of the diverter cone, and the rubber material is initially formed through the extrusion gap.

[0004] However, the die head has many parts, and the gaps between the parts are prone to rubber leakage; and when the die head is replaced, the entire device needs to be disassembled, which is inconvenient to replace.

[0005] Based on this, the utility model designs an extrusion head which is convenient for loading and unloading to solve the above problems. [Contents of the utility model]

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides an extrusion head which is convenient for loading and unloading.

[0007] In order to achieve the above purpose, an extrusion head which is convenient for loading and unloading is designed, comprising a positioning block and a die head;

[0008] The outer wall of the positioning block is provided with a thread, the upper side of the positioning block is provided with a truncated cone-shaped first guide groove which is wide at the top and narrow at the bottom, the bottom side of the positioning block is provided with a receiving groove, and the middle part of the positioning block is provided with a thread groove which passes through the first guide groove and the receiving groove;

[0009] A threaded rod is fixedly installed on the top of the die head, and a through glue outlet is opened in the middle of the die head and the threaded rod; the die head is plugged into the accommodating groove, and the threaded rod is threadedly connected to the threaded groove; the first guide groove is connected to the glue outlet.

[0010] Furthermore, the die heads are provided in plurality, and the sizes of the glue outlets and the second guide grooves of the plurality of die heads are different.

[0011] Furthermore, a second truncated cone-shaped guide groove which is wider at the top and narrower at the bottom is provided on the upper side of the glue outlet, and the top size of the second guide groove is consistent with the bottom size of the first guide groove.

[0012] Furthermore, the bottom edge of the accommodating groove is provided with a guide surface for facilitating the insertion of the die head.

[0013] Furthermore, an overflow groove is provided on the top of the positioning block.

[0014] Furthermore, a plurality of fastening screw holes communicating with the accommodating grooves are formed in a circular array at equal intervals on the lower side of the outer wall of the positioning block.

[0015] Furthermore, the slope of the first guide groove is greater than that of the second guide groove.

[0016] Furthermore, a cylindrical flow stabilizing hole is provided between the first guide groove and the thread groove.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] When the die head needs to be replaced, the threaded rod can be screwed out of the thread groove; thus, it is no longer necessary to dismantle the entire extruder device for replacement like the old pancake design, making replacement more convenient;

[0019] The rubber material flows out through the rubber outlet after being guided by the first guide groove and the second guide groove. The first guide groove and the second guide groove make the rubber material enter more smoothly, reduce the pressure on the rubber material during the extrusion process, and make the rubber material surface smoother; there are two sections of guide slope, the material discharge is more uniform, and the required rubber material diameter is more accurate;

[0020] At the same time, the extrusion head device is an integral design, and has fewer parts compared to the common extrusion heads on the current market, thereby reducing the phenomenon of rubber material escaping from the gaps between parts. [Drawings]

[0021] Figure 1 A three-dimensional diagram of an extrusion head that is convenient for loading and unloading according to the utility model;

[0022] Figure 2 This is a front view of an extrusion head that is convenient for loading and unloading according to the utility model;

[0023] Figure 3 Schematic diagram of the positioning block and its connection structure Figure 1 ;

[0024] Figure 4 Schematic diagram of the positioning block and its connection structure Figure 2 ;

[0025] Figure 5 for Figure 2 A front cross-sectional view of

[0026] In the figure: 1. positioning block; 11. first guide groove; 12. threaded groove; 13. receiving groove; 14. overflow groove; 15. guide surface; 16. fastening screw hole; 17. flow stabilizing hole; 2. die head; 21. threaded rod; 22. glue outlet; 23. second guide groove. [Specific implementation method]

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0028] Embodiment 1

[0029] In some embodiments, please refer to the attached instructions. Figure 1 To Attachment Figure 5 , an extrusion head that is easy to load and unload, comprising a positioning block 1 and a die head 2;

[0030] The outer wall of the positioning block 1 is provided with threads, a first truncated cone-shaped guide groove 11 which is wide at the top and narrow at the bottom is provided on the upper side of the positioning block 1, a receiving groove 13 is provided on the bottom side of the positioning block 1, and a thread groove 12 which passes through the first guide groove 11 and the receiving groove 13 is provided in the middle of the positioning block 1;

[0031] A threaded rod 21 is fixedly installed on the top of the die head 2, and a through glue outlet 22 is opened in the middle of the die head 2 and the threaded rod 21; the die head 2 is plugged into the accommodating groove 13, and the threaded rod 21 is threadedly connected to the threaded groove 12; the first guide groove 11 is connected to the glue outlet 22.

[0032] The die heads 2 are provided in plurality, and the sizes of the glue outlets 22 and the second guide grooves 23 of the plurality of die heads 2 are different.

[0033] A second truncated cone-shaped guide groove 23 which is wide at the top and narrow at the bottom is disposed on the upper side of the glue outlet 22 . The top size of the second guide groove 23 is consistent with the bottom size of the first guide groove 11 .

[0034] In this embodiment, when the extrusion head with convenient loading and unloading is working normally, the threaded rod 21 on the die head 2 is installed in the threaded groove 12 in the positioning block 1, and the die head 2 is inserted into the receiving groove 13, so that the die head 2 is installed on the positioning block 1. When the die head 2 needs to be replaced, the threaded rod 21 can be screwed out of the threaded groove 12; thus, there is no need to dismantle and replace the entire extrusion device like the old pancake-shaped design, making replacement more convenient; the rubber material flows out through the rubber outlet 22 after being guided by the first guide groove 11 and the second guide groove 23, and the rubber material enters more smoothly through the first guide groove 11 and the second guide groove 23, reducing the pressure on the rubber material during the extrusion process and making the rubber material surface smoother; there are two sections of guide slopes, the discharge is more uniform, and the required rubber material diameter is more accurate; at the same time, the extrusion head device is an overall design, and has fewer parts compared with the common extrusion heads on the market, thereby reducing the phenomenon of rubber material running in the gaps between parts.

[0035] Embodiment 2

[0036] In some embodiments, Figure 1 To Attachment Figure 5 As shown, as a preferred embodiment of the present utility model, the bottom edge of the receiving groove 13 is provided with a guide surface 15 for facilitating the insertion of the die head 2;

[0037] An overflow groove 14 is provided on the top of the positioning block 1;

[0038] A plurality of fastening screw holes 16 communicating with the receiving groove 13 are formed in a circular array at equal intervals on the lower side of the outer wall of the positioning block 1;

[0039] The slope of the first guide groove 11 is greater than that of the second guide groove 23;

[0040] A cylindrical flow stabilizing hole 17 is further provided between the first guide groove 11 and the thread groove 12 .

[0041] In this embodiment, the overflow groove 14 is used to prevent excess rubber from flowing to the threaded part of the outer wall of the positioning block 1, and the guide surface 15 is used to facilitate the insertion of the die head 2 into the receiving groove 13; in actual use, the positioning block 1 and the die head 2 are fastened by a screw used in conjunction with the fastening screw hole 16; the rubber flows out of the first guide groove 11 and enters the steady flow hole 17 for shaping and stabilization, thereby reducing the pressure on the rubber during the process of flowing into the second guide groove 23, making the surface of the rubber smoother.

[0042] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. The standard parts used can be purchased from the market, and special-shaped parts can be customized according to the records in the specification and drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0043] The present invention is not limited to the above-mentioned implementation modes, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be considered as equivalent replacement modes and shall be included in the protection scope of the present invention.

Claims

1. An extrusion head that is easy to load and unload, comprising a positioning block (1) and a die head (2), characterized in that: The outer wall of the positioning block (1) is provided with a thread, a first truncated cone-shaped flow guide groove (11) which is wide at the top and narrow at the bottom is provided on the upper side of the positioning block (1), a receiving groove (13) is provided on the bottom side of the positioning block (1), and a thread groove (12) which passes through the first flow guide groove (11) and the receiving groove (13) is provided in the middle of the positioning block (1); A threaded rod (21) is fixedly mounted on the top of the die head (2), and a through glue outlet (22) is provided in the middle of the die head (2) and the threaded rod (21); the die head (2) is plugged into the receiving groove (13), and the threaded rod (21) is threadedly connected to the threaded groove (12); and the first guide groove (11) is connected to the glue outlet (22).

2. The extrusion head that is easy to load and unload according to claim 1 is characterized in that: A second truncated cone-shaped guide groove (23) which is wider at the top and narrower at the bottom is provided on the upper side of the glue outlet (22); the top size of the second guide groove (23) is consistent with the bottom size of the first guide groove (11).

3. The extrusion head that is easy to load and unload according to claim 2, characterized in that: The die heads (2) are provided in plurality, and the glue outlets (22) and the second guide grooves (23) of the plurality of die heads (2) are of different sizes.

4. The extrusion head that is easy to load and unload according to claim 3, characterized in that: The bottom edge of the receiving groove (13) is provided with a guide surface (15) for facilitating the insertion of the die head (2).

5. The extrusion head that is easy to load and unload according to claim 4, characterized in that: An overflow groove (14) is provided on the top of the positioning block (1).

6. The extrusion head that is easy to load and unload according to claim 5, characterized in that: A plurality of fastening screw holes (16) communicating with the accommodating groove (13) are provided at equal intervals in a circular array on the lower side of the outer wall of the positioning block (1).

7. The extrusion head that is easy to load and unload according to claim 6, characterized in that: The slope of the first guide groove (11) is greater than that of the second guide groove (23).

8. The extrusion head that is easy to load and unload according to claim 7, characterized in that: A cylindrical flow stabilizing hole (17) is also provided between the first guide groove (11) and the thread groove (12).

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