Machine head template

Abstract

The utility model provides a machine head template, which relates to the technical field of machine head templates, and comprises an outer die sleeve plate, an inner die sleeve plate and a machine head, the inner die sleeve plate is sleeved in the outer die sleeve plate, the inner side wall of the outer die sleeve plate is provided with an outer heat insulation layer, a die cavity is arranged between the inner side wall of the outer heat insulation layer and the outer side surface of the inner die sleeve plate, and the outer side surface of the inner die sleeve plate is provided with an inner heat insulation layer. A machine head is arranged in the mold cavity in an injection molding mode and is of a detachable structure, an inner closing plate is arranged on the rear portion of the inner mold sleeve plate, an outer fixing plate is arranged on the rear side of the inner closing plate, an injection molding channel is formed in the center of the outer fixing plate, and the outer mold sleeve plate and the inner mold sleeve plate are detachably connected. A plurality of sets of supporting rods are annularly arranged on the outer ring face of the front portion of the outer die sleeve plate, and extrusion plates are fixed to the front ends of the supporting rods. The injection mold is convenient to assemble for uniform injection molding of materials so as to ensure that a machine head product can be quickly and stably formed, the outer mold sleeve plate and the inner mold sleeve plate are convenient to disassemble for safe demolding, and the arrangement is safer, more convenient and more practical.

Description

Technical Field

[0001] The utility model relates to the technical field of machine head templates, in particular to a machine head template. Background Art

[0002] At present, when a co-rotating twin-screw extruder extrude modified plastics, the template must be installed at the head. In the description of the head template of the prior art (Announcement No. CN201816201U), it is mentioned that "it is composed of a template body, which is characterized in that: 5 conical inclined die holes are provided on the inclined surface of the lower side of the template body, and the diameter of the small end of the die hole is 3mm. Due to the adoption of the above technical solution, the number of template holes is reduced from 9 to 5, and the diameter of the small end of the die hole is reduced from 4mm to 3mm. The pressure at the head is increased to a certain extent, the extruded material strips are fuller, and the material strips become thicker, so it has the advantages of beautiful particle shape and high product qualification rate". However, the head template in the prior art does not inject materials evenly and quickly, and it is also convenient for the head product to separate from the template after the injection molding is completed, which may cause damage to the head product. It is not convenient, stable and practical. Utility Model Content

[0003] In order to overcome the defects of the existing technology, a head template is now provided to solve the problem that the material injection of the head template in the existing technology is not uniform and fast, and the separation between the head product and the template is not convenient after the injection molding is completed, which may cause damage to the head product and is not convenient, stable and practical.

[0004] To achieve the above-mentioned purpose, a head template is provided, comprising an outer mold sleeve, an inner mold sleeve and a head, the outer mold sleeve is sleeved with an inner mold sleeve, and the inner side wall of the outer mold sleeve is provided with an outer heat insulation layer, and a mold cavity is provided between the inner side wall of the outer heat insulation layer and the outer side surface of the inner mold sleeve, a head is injection-molded in the mold cavity, and the head is a detachable structure, an inner closing plate is provided at the rear of the inner mold sleeve, and an outer fixing plate is provided on the rear side of the inner closing plate, and an injection channel is provided in the center of the outer fixing plate, and the outer mold sleeve and the inner mold sleeve are split and connected.

[0005] Furthermore, a plurality of groups of support rods are provided on the front outer ring surface of the outer mold sleeve, and an extrusion plate is fixed to the front end of the support rod, and a cushion layer is provided on the front side surface of the extrusion plate.

[0006] Furthermore, a first protrusion, a second protrusion and a third protrusion are provided on the left portion of the inner side wall of the outer mold sleeve, and a fourth protrusion is provided on the rear side of the first protrusion.

[0007] Furthermore, the rear portion of the outer mold sleeve is provided with multiple groups of external screw holes, and the rear portion of the inner mold sleeve is provided with multiple groups of internal screw holes, and the internal screw holes and the external screw holes are aligned inside and outside, and fastening bolts are installed between the aligned internal and external screw holes, and the fastening bolts are a detachable structure.

[0008] Furthermore, the front part of the inner wall of the inner mold sleeve is provided with a first inlay, a second inlay and a third inlay, and the rear side of the first inlay is provided with a third inlay, and the first protrusion is embedded in the first inlay, the second protrusion is embedded in the second inlay, the third protrusion is embedded in the third inlay, and the fourth protrusion is embedded in the fourth inlay.

[0009] Furthermore, a central rod is provided in the center of the inner mold sleeve, and four groups of connecting rods are provided around the rear of the central rod, and the other ends of the connecting rods are fixed to the inner side wall of the inner mold sleeve.

[0010] Furthermore, an injection chamber is provided between the inner closing plate and the outer fixing plate, and a plurality of inner extrusion ports are provided on the inner side wall of the injection chamber, the other end of the inner extrusion port leads to the mold cavity, and the injection channel is connected to the injection chamber.

[0011] The beneficial effects of the present invention are:

[0012] 1. The protrusions and inlays provided between the outer mold sleeve and the inner mold sleeve in the present invention are to reserve window holes and door holes in advance when the injection molding machine head product is in operation. The inlay setting is not only convenient for assembly, but also fits tightly, making it more convenient and practical.

[0013] 2. The inner mold sleeve of the utility model is placed inside the outer mold sleeve so that a mold cavity is formed between the outer insulation layer and the outer side wall of the inner mold sleeve, which is convenient for injecting materials into the mold cavity. The outer mold sleeve and the rear part of the inner mold sleeve are installed together by fastening bolts, and can also be disassembled by removing the fastening bolts, which makes loading and unloading more convenient and easy, and is also convenient for cleaning or maintenance.

[0014] 3. In the present invention, the material is injected into the injection molding chamber through the injection channel, and the material is then injected into the mold cavity through the inner extrusion port opened on the inner wall of the injection molding chamber. The injection of the material through the multiple groups of inner extrusion ports on the inner ring side wall is more uniform and rapid, which helps to ensure the molding quality of the die head product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic cross-sectional view of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the outer mold plate structure of an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the inner mold plate structure of an embodiment of the utility model;

[0018] Figure 4 Schematic diagram of the nose of an embodiment of the present utility model.

[0019] In the figure: 1. Outer mold sleeve; 10. Support rod; 11. Extrusion plate; 12. Cushion layer; 13. External screw hole; 14. External insulation layer; 15. Mold cavity; 16. First protrusion; 17. Second protrusion; 18. Third protrusion; 19. Fourth protrusion; 2. Inner mold sleeve; 20. Fourth inlay; 21. Inner closing plate; 22. Inner extrusion port; 23. Outer fixing plate; 24. Injection channel; 25. Injection chamber; 26. Inner screw hole; 27. First inlay; 28. Second inlay; 29. ​​Third inlay; 200. Center rod; 201. Connecting rod; 3. Fastening bolts; 4. Machine head. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Specific details such as specific system structures and technologies are proposed in order to more thoroughly understand the embodiments of the present invention. The described embodiments are part of the embodiments of the present disclosure, not all of them. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present disclosure.

[0021] The specific implementation of the present utility model will be described in detail below with reference to the accompanying drawings.

[0022] Figure 1 A cross-sectional diagram of an embodiment of the present invention is shown in FIG. Figure 2 This is a schematic diagram of the outer mold plate structure of an embodiment of the utility model, Figure 3 The schematic diagram of the inner mold plate structure of the embodiment of the utility model and Figure 4 Schematic diagram of the nose of an embodiment of the present utility model.

[0023] Reference Figures 1 to 4 As shown, the utility model provides a machine head template, including an outer mold sleeve 1, an inner mold sleeve 2 and a machine head 4, the inner mold sleeve 2 is sleeved in the outer mold sleeve 1, and the inner side wall of the outer mold sleeve 1 is provided with an outer heat insulation layer 14, and a mold cavity 15 is provided between the inner side wall of the outer heat insulation layer 14 and the outer side surface of the inner mold sleeve 2, the machine head 4 is injection-molded in the mold cavity 15, and the machine head 4 is a detachable structure, the rear part of the inner mold sleeve 2 is provided with an inner closing plate 21, and the rear side of the inner closing plate 21 is provided with an outer fixing plate 23, and the center of the outer fixing plate 23 is provided with an injection channel 24, the outer mold sleeve 1 and the inner mold sleeve 2 are split and connected.

[0024] In this embodiment, a plurality of support rods 10 are provided on the front outer ring surface of the outer mold sleeve 1, and an extrusion plate 11 is fixed to the front end of the support rod 10, and a cushion layer 12 is provided on the front side of the extrusion plate 11; a first protrusion 16, a second protrusion 17 and a third protrusion 18 are provided on the left portion of the inner side wall of the outer mold sleeve 1, and a fourth protrusion 19 is provided on the rear side of the first protrusion 16; a first insert 27, a second insert 28 and a third insert 29 are provided on the front portion of the inner side wall of the inner mold sleeve 2, and a third insert 29 is provided on the rear side of the first insert 27, and the first protrusion 16 is embedded in the first insert 27, the second protrusion 17 is embedded in the second insert 28, the third protrusion 18 is embedded in the third insert 29, and the fourth protrusion 19 is embedded in the fourth insert 20.

[0025] As a preferred embodiment, the protrusions and inlays set between the outer mold sleeve 1 and the inner mold sleeve 2 in the present invention are for reserving window holes and door holes in advance when injection molding machine head products. The inlay setting is not only convenient for assembly, but also fits tightly, which is more convenient and practical.

[0026] In this embodiment, a plurality of groups of external screw holes 13 are provided at the rear of the outer mold sleeve 1, and a plurality of groups of internal screw holes 26 are provided at the rear of the inner mold sleeve 2, and the internal screw holes 26 and the external screw holes 13 are aligned inside and outside, and a fastening bolt 3 is installed between the internally and externally aligned internal screw holes 26 and external screw holes 13, and the fastening bolt 3 is a detachable structure.

[0027] As a preferred embodiment, the inner mold sleeve 2 of the utility model is placed in the outer mold sleeve 1 so that a mold cavity 15 is formed between the outer insulation layer 14 and the outer side wall of the inner mold sleeve 2, which facilitates the injection of material into the mold cavity 15. The outer mold sleeve 1 and the rear part of the inner mold sleeve 2 are installed together by fastening bolts 3, and can also be disassembled by removing the fastening bolts 3, which makes loading and unloading more convenient and easy, and is also convenient for cleaning or maintenance.

[0028] In this embodiment, a central rod 200 is provided in the center of the inner mold sleeve 2, and four groups of connecting rods 201 are provided around the rear of the central rod 200, and the other ends of the connecting rods 201 are fixed to the inner side wall of the inner mold sleeve 2; an injection chamber 25 is provided between the inner closing plate 21 and the outer fixed plate 23, and a plurality of groups of inner extrusion ports 22 are provided on the inner side wall of the injection chamber 25, and the injection channel 24 is connected to the injection chamber 25.

[0029] As a preferred embodiment, in the present invention, material is injected into the injection chamber 25 through the injection channel 24, and the material is then injected into the mold cavity 15 through the inner extrusion port 22 opened on the inner wall of the injection chamber 25. The injection of material through multiple groups of inner extrusion ports 22 on the inner ring side wall is more uniform and rapid, which helps to ensure the molding quality of the head product.

[0030] The utility model can effectively solve the problems in the prior art that the injection of materials into the head template is not uniform and fast, and the separation between the head product and the template is not convenient after the injection molding is completed, which may cause damage to the head product and is not convenient, stable and practical. The utility model is convenient to assemble and inject the molding material uniformly to ensure that the head product can be molded quickly and stably, and it is also convenient to disassemble the outer mold plate and the inner mold plate for safe demoulding, which is safer, more convenient and practical.

[0031] The above embodiments are used to illustrate the present invention rather than to limit the present invention. Any modifications and changes made to the present invention within the spirit of the present invention and the scope of the claims for protection shall be included in the scope of protection of the present invention.

Claims

1. A die template, characterized in that: The invention comprises an outer mold sleeve (1), an inner mold sleeve (2) and a machine head (4); the outer mold sleeve (1) is sleeved with the inner mold sleeve (2); the inner side wall of the outer mold sleeve (1) is provided with an outer heat insulation layer (14); a mold cavity (15) is provided between the inner side wall of the outer heat insulation layer (14) and the outer side surface of the inner mold sleeve (2); a machine head (4) is injection-molded in the mold cavity (15); and the machine head (4) is a detachable structure; an inner closing plate (21) is provided at the rear of the inner mold sleeve (2); an outer fixing plate (23) is provided at the rear side of the inner closing plate (21); and an injection channel (24) is provided at the center of the outer fixing plate (23); and the outer mold sleeve (1) and the inner mold sleeve (2) are detachably connected.

2. A head template according to claim 1, characterized in that: The front outer ring surface of the outer mold sleeve (1) is provided with a plurality of groups of support rods (10), and the front ends of the support rods (10) are fixed with extrusion plates (11), and the front side surfaces of the extrusion plates (11) are provided with cushion layers (12).

3. A head template according to claim 1, characterized in that: The left portion of the inner side wall of the outer mold sleeve (1) is provided with a first protrusion (16), a second protrusion (17) and a third protrusion (18), and a fourth protrusion (19) is provided on the rear side of the first protrusion (16).

4. A nose template according to claim 1, characterized in that: The rear portion of the outer mold sleeve (1) is provided with multiple groups of outer screw holes (13), and the rear portion of the inner mold sleeve (2) is provided with multiple groups of inner screw holes (26), and the inner screw holes (26) and the outer screw holes (13) are aligned inside and outside, and a fastening bolt (3) is installed between the aligned inner screw holes (26) and the outer screw holes (13), and the fastening bolt (3) is a detachable structure.

5. A nose template according to claim 1, characterized in that: The front portion of the inner side wall of the inner mold sleeve (2) is provided with a first insert (27), a second insert (28) and a third insert (29), and the rear side of the first insert (27) is provided with a third insert (29), and the first protrusion (16) is embedded in the first insert (27), the second protrusion (17) is embedded in the second insert (28), the third protrusion (18) is embedded in the third insert (29), and the fourth protrusion (19) is embedded in the fourth insert (20).

6. A nose template according to claim 1, characterized in that: A central rod (200) is provided at the center of the inner mold sleeve (2), and four groups of connecting rods (201) are provided around the rear of the central rod (200), and the other ends of the connecting rods (201) are fixed to the inner side wall of the inner mold sleeve (2).

7. A nose template according to claim 1, characterized in that: An injection molding chamber (25) is provided between the inner closing plate (21) and the outer fixing plate (23), and a plurality of inner extrusion ports (22) are provided on the inner side wall of the injection molding chamber (25), the other end of the inner extrusion port (22) leads to the mold cavity (15), and an injection molding channel (24) is connected to the injection molding chamber (25).

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