Protective device for hot nozzle of hot runner

Abstract

The utility model discloses a hot runner hot nozzle protection device, which relates to the technical field of mold auxiliary devices, and comprises a hot runner hot nozzle body, and further comprises a protection component arranged on the hot runner hot nozzle body and used for protecting the hot runner hot nozzle body, wherein the protection assembly comprises a heat conducting piece, the heat conducting piece is arranged on the outer surface of the hot runner hot nozzle body in a sleeving mode, the outer surface of the heat conducting piece is sleeved with a protection sleeve and two sets of annular buckles, notches are formed in the annular buckles, fixing shafts are installed in the notches, and the outer surfaces of the fixing shafts are sleeved with sliding blocks and reset springs. According to the hot runner hot nozzle, the hot runner hot nozzle body is extruded through the heat conducting piece, the heat conducting piece and the annular buckle are rotated, at the moment, the protective sleeve can be limited through cooperation of the protective sleeve and the annular buckle, then the hot runner hot nozzle body can be protected, the hot runner hot nozzle can be conveniently assembled with a conventional hot runner, and high adaptability is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mould auxiliary device, specifically a hot runner hot nozzle protection device. BACKGROUND

[0002] Hot runner hot nozzle is the heating assembly for injecting molten plastic particles into the mold cavity in the injection mold, which ensures that the plastic in the runner and the gate remains in a molten state by heating, so that the runner and the gate do not need to be removed during the injection molding process. This technology helps to improve production efficiency, reduce cost, and improve product quality.

[0003] Hot runner hot nozzle is usually directly set outside, and damage may occur during installation and use. The hot runner hot nozzle in the prior art does not reserve mounting holes or threaded grooves compatible with the protection device, resulting in the need to modify the hot runner hot nozzle when installing the protection device. Therefore, it is difficult to assemble the protection device on the conventional hot runner hot nozzle. For example, the "hot runner hot nozzle protection device" mentioned in the publication number "CN215791439U" is different from the conventional hot runner hot nozzle on the market. This patent has a set of threaded grooves for the installation of the protection device, so the adaptability of this protection device is not strong and is not suitable for conventional hot runner hot nozzles. SUMMARY

[0004] The purpose of the present utility model is to make up for the shortcomings of the prior art and provide a hot runner hot nozzle protection device.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a hot runner hot nozzle protection device, comprising a hot runner hot nozzle body, further comprising:

[0006] A protection assembly is provided on the hot runner hot nozzle body for protecting the hot runner hot nozzle body.

[0007] The protection assembly includes a heat conducting sheet, which is sleeved on the outer surface of the hot runner hot nozzle body. The outer surface of the heat conducting sheet is sleeved with a protective sleeve and two sets of annular buckles. The inner part of the annular buckle is provided with a slot, and the inner part of the slot is provided with a fixed shaft. The outer surface of the fixed shaft is sleeved with a sliding block and a return spring.

[0008] The two sets of annular buckles are located at both ends of the protective sleeve, and the end part of the annular buckle is provided with a threaded part. The protective sleeve is threadedly connected with the annular buckle.

[0009] The end part of the sliding block is provided with a chamfer, and the protective sleeve is in extrusion contact with the sliding block.

[0010] The heat-conducting sheet is made of heat-conducting silica gel, the sliding block is in extrusion contact with the heat-conducting sheet, and the heat-conducting sheet can extrude the surface of the hot runner hot nozzle body when the sliding block extrudes the heat-conducting sheet.

[0011] The middle part of the protective sleeve is inserted with a plurality of groups of heat-conducting rods, the heat-conducting rods are in contact with the heat-conducting sheet, the two ends of the heat-conducting rods are connected with the two groups of annular buckles respectively, and the annular buckles are made of heat-dissipating metal.

[0012] The reset spring is elastically supported between the sliding block and the fixed shaft.

[0013] Compared with the prior art, the hot runner hot nozzle protection device has the following beneficial effects:

[0014] Firstly, the heat-conducting sheet is assembled through cooperation between the heat-conducting sheet and the hot runner hot nozzle body, the annular buckle is assembled through cooperation between the annular buckle and the heat-conducting sheet, the sliding block is extruded by the protective sleeve through cooperation between the protective sleeve and the heat-conducting sheet, the sliding block moves along the outer surface of the fixed shaft and is extruded by the heat-conducting sheet, the heat-conducting sheet and the annular buckle are rotated, the protective sleeve is limited through cooperation between the protective sleeve and the annular buckle, the hot runner hot nozzle body is protected, the device is convenient to assemble with a conventional hot runner, and the device has strong adaptability.

[0015] Secondly, the heat-conducting sheet can absorb heat on the surface of the hot runner hot nozzle body, the heat-conducting rods can absorb heat of the heat-conducting sheet, heat is conducted to the annular buckle through cooperation between the heat-conducting rods and the annular buckle, the annular buckle dissipates heat, the hot runner hot nozzle body is protected and heat-dissipating treatment is performed on the hot runner hot nozzle body.

[0016] Other advantages, objects and features of the present application will be apparent to those skilled in the art from the following description, and will be learned from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the three-dimensional structure of the present application;

[0018] Figure 2 It is a schematic view of the sectional structure of the side of the protection assembly of the present application;

[0019] Figure 3 It is a schematic view of the structure of the present application Figure 2 at the enlarged view of A;

[0020] Figure 4 Figure 1 is a dismounting structure schematic view of the protection assembly.

[0021] In the figure: 1, hot runner hot nozzle body; 2, heat conduction sheet; 3, annular buckle; 4, protective sleeve; 5, notch; 6, fixed shaft; 7, sliding block; 8, reset spring; 9, heat conduction rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] As shown in Figures 1-4 The utility model provides a technical scheme: a hot runner hot nozzle protection device, including hot runner hot nozzle body 1, still include:

[0024] The protection assembly is arranged on the hot runner hot nozzle body 1 and is used for protecting the hot runner hot nozzle body 1.

[0025] The protection assembly includes the heat conduction sheet 2, the heat conduction sheet 2 is sleeved on the outer surface of the hot runner hot nozzle body 1, the outer surface of the heat conduction sheet 2 is sleeved with the protective sleeve 4 and two sets of annular buckles 3, the inside of the annular buckle 3 is provided with the notch 5, the inside of the notch 5 is installed with the fixed shaft 6, the outer surface of the fixed shaft 6 is sleeved with the sliding block 7 and the reset spring 8.

[0026] Through the cooperation between the heat conduction sheet 2 and the hot runner hot nozzle body 1, the heat conduction sheet 2 is assembled, at the same time, through the cooperation between the annular buckle 3 and the heat conduction sheet 2, the annular buckle 3 is assembled, at this time, through the cooperation between the protective sleeve 4 and the heat conduction sheet 2, the protective sleeve 4 can extrude the sliding block 7, the sliding block 7 moves along the outer surface of the fixed shaft 6 and is extruded with the heat conduction sheet 2, so that the hot runner hot nozzle body 1 can be extruded by the heat conduction sheet 2, the heat conduction sheet 2 and the annular buckle 3 are positioned, at this time, through the cooperation between the protective sleeve 4 and the annular buckle 3, the protective sleeve 4 can be limited, and then the hot runner hot nozzle body 1 can be protected, and it is convenient to assemble with the conventional hot runner, and has strong adaptability.

[0027] As shown in Figure 1 、 4 The two sets of annular buckles 3 are respectively located at the two ends of the protective sleeve 4, the end of the annular buckle 3 is provided with a section of thread, and the protective sleeve 4 is threadedly connected with the annular buckle 3.

[0028] Through the cooperation between the protective sleeve 4 and the annular buckle 3, the sliding block 7 can be limited, so that the sliding block 7 can extrude the heat-conducting sheet 2, and through the annular buckle 3 arranged at both ends of the protective sleeve 4, the both ends of the heat-conducting sheet 2 can be extruded with the hot runner nozzle body 1, thereby improving the stability and preventing the heat-conducting sheet 2 from falling off.

[0029] As shown in Figure 3 , the end of the sliding block 7 is provided with a chamfer, and the protective sleeve 4 extrudes the sliding block 7.

[0030] Through the chamfer arranged at the end of the sliding block 7, when the protective sleeve 4 extrudes the sliding block 7, the sliding block 7 will move along the outer surface of the fixed shaft 6, thereby extruding the heat-conducting sheet 2.

[0031] As shown in Figure 2 , 3 , the heat-conducting sheet 2 is made of heat-conducting silica gel, the sliding block 7 extrudes the heat-conducting sheet 2, and when the sliding block 7 extrudes the heat-conducting sheet 2, the heat-conducting sheet 2 can extrude the surface of the hot runner nozzle body 1.

[0032] Through the design of the heat-conducting sheet 2, it has a certain softness, so that when the sliding block 7 extrudes the heat-conducting sheet 2, the pressure acting on the heat-conducting sheet 2 will be transmitted to the hot runner nozzle body 1 through the heat-conducting sheet 2, so that the heat-conducting sheet 2 extrudes the hot runner nozzle body 1, at this time the hot runner nozzle body 1 and the sliding block 7 will form a clamping effect on the heat-conducting sheet 2, thereby achieving the positioning effect of the heat-conducting sheet 2.

[0033] As shown in Figure 4 , the middle part of the protective sleeve 4 is inserted with a plurality of groups of heat-conducting rods 9, the heat-conducting rods 9 are in contact with the heat-conducting sheet 2, the both ends of the heat-conducting rods 9 are connected with the two groups of annular buckles 3 respectively, and the annular buckles 3 are made of heat-dissipating metal.

[0034] Through the design of the heat-conducting rods 9, the heat-conducting rods 9 can absorb the heat of the heat-conducting sheet 2, and transmit the heat to the annular buckles 3, thereby dissipating the heat through the annular buckles 3, thereby protecting and dissipating heat for the hot runner nozzle body 1.

[0035] As shown in Figure 3 , the reset spring 8 is elastically supported between the sliding block 7 and the fixed shaft 6.

[0036] Through the design of the reset spring 8, the sliding block 7 has good elastic reset performance, at this time, since the reset spring 8 is in a compressed state, it will exert a spring force on the sliding block 7, thereby separating the sliding block 7 and the heat-conducting sheet 2 through the reset spring 8 when the protective sleeve 4 extrudes the sliding block 7.

[0037] Working principle:

[0038] Firstly, the staff can set the heat conduction sheet 2 on the outer surface of the hot runner nozzle body 1, then set the annular buckle 3 on the outer surface of the hot runner nozzle body 1, then the staff can set the protective sleeve 4 on the outer surface of the heat conduction sheet 2, and drive the protective sleeve 4 to extrude the sliding block 7, make the sliding block 7 move along the outer surface of the fixed shaft 6 and extrude the heat conduction sheet 2, at this time, the protective sleeve 4 can be rotated, the protective sleeve 4 is fixed with the annular buckle 3, so that the heat conduction sheet 2 can extrude the hot runner nozzle body 1, the heat conduction sheet 2 and the annular buckle 3 are positioned, and finally another group of annular buckles 3 are assembled at the top end of the protective sleeve 4, the stability of the protective sleeve 4 is improved.

[0039] 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 appended claims and their equivalents.

Claims

1. A hot runner nozzle protection device comprising a hot runner nozzle body (1), characterized in that, Also include: Protective components are arranged on the hot runner nozzle body (1), for the protection of hot runner nozzle body (1); Wherein, the protective components include heat conduction sheet (2), the heat conduction sheet (2) is sleeved on the outer surface of the hot runner nozzle body (1), the outer surface of the heat conduction sheet (2) is sleeved with protective sleeve (4) and two groups of annular buckle (3), the inside of the annular buckle (3) is provided with notch (5), the inside of the notch (5) is installed with fixed shaft (6), the outer surface of the fixed shaft (6) is sleeved with sliding block (7) and reset spring (8).

2. A hot-ductile nozzle protection device according to claim 1, characterized in that: The two groups of annular buckle (3) are located at both ends of the protective sleeve (4) respectively, the end of the annular buckle (3) is provided with a section of thread, the protective sleeve (4) is connected with the annular buckle (3) by thread.

3. A hot-ductile nozzle protection device according to claim 1, characterized in that: The end of the sliding block (7) is provided with a chamfer, the protective sleeve (4) is extruded with the sliding block (7).

4. The hot-ductile nozzle protection device according to claim 1, characterized in that: The heat conduction sheet (2) is made of heat conduction silica gel, the sliding block (7) is extruded with the heat conduction sheet (2), when the sliding block (7) is extruded with the heat conduction sheet (2), the heat conduction sheet (2) can extrude the surface of the hot runner nozzle body (1).

5. The hot-ductile nozzle protection device according to claim 1, characterized in that: The middle part of the protective sleeve (4) is inserted with several groups of heat conduction rod (9), the heat conduction rod (9) is in contact with the heat conduction sheet (2), the two ends of the heat conduction rod (9) are connected with two groups of annular buckle (3) respectively, the annular buckle (3) is made of heat dissipation metal.

6. A hot-ductile nozzle protection device according to claim 1, characterized in that: The reset spring (8) is elastically supported between the sliding block (7) and the fixed shaft (6).

Images