Injection mold for water gun buckle for automobile

Abstract

The utility model relates to the technical field of molds, and discloses an automobile water gun buckle injection mold which comprises an upper mold frame, a protective frame, a lower mold frame and a base which are sequentially stacked from top to bottom, a mold is arranged on the inner side of the lower mold frame, and a material injection opening is formed in the upper end face of the upper mold frame. A material guide pipe penetrating through the upper mold frame and the protection frame is arranged at the bottom end of the material injection opening, the material guide pipe extends to the inner side of the mold and communicates with a runner on the inner side of the mold, a constant temperature assembly is arranged on the outer side of the material guide pipe, and the constant temperature of a molten material in the path of entering a mold cavity through the material guide pipe is controlled through an arranged heat conduction wire; and heat cannot be dissipated through the arranged heat insulation sleeve, so that the heat cannot be transferred to the outside, molten materials can be rapidly cooled when entering the mold, the product quality and efficiency are more effectively maintained, and the heat insulation sleeve also plays a role in preserving heat for the material guide pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and in particular to an automobile water gun buckle injection mold. Background Art

[0002] The injection mold for automobile water gun buckle is a plastic mold used to produce automobile water gun buckle. This mold is usually composed of an upper mold frame, a protective frame, a lower mold frame and a base. The mold is accurately positioned by the cooperation of the positioning rod and the positioning cylinder. A flow channel is usually set inside the mold to guide the molten plastic raw material to various parts of the mold to form the desired buckle shape.

[0003] There are some disadvantages in the use process. For example, before the molten material enters the mold cavity, the temperature of the molten material drops rapidly due to the cooling of the cooling water channel in the mold, and the fluidity becomes poor. Eventually, after the material enters the cavity, the cavity cannot be completely filled. The quality of the produced products has major defects, resulting in silver streaks or cracks in the products. The main reason is that the molten material loses a lot of heat on the way from the sprue sleeve into the mold cavity, which causes the temperature of the molten material to drop significantly, and then the plasticity of the material becomes poor. Utility Model Content

[0004] The utility model aims to provide an automobile water gun buckle injection mold to solve the problem that a large amount of heat is lost during the process of molten material entering the mold cavity through the sprue sleeve, thereby causing the temperature of the molten material to drop significantly, thereby causing the plasticity of the material to deteriorate.

[0005] The utility model provides the following technical scheme: a car water gun buckle injection mold, comprising an upper mold frame, a protective frame, a lower mold frame and a base which are stacked in sequence from top to bottom, wherein the four corners of the lower end face of the upper mold frame are fixedly connected with positioning rods, the four corners of the upper end face of the lower mold frame are embedded with positioning cylinders adapted to the positioning rods, a mold is arranged on the inner side of the lower mold frame, a material injection port is opened on the upper end face of the upper mold frame, a material guide pipe which passes through the upper mold frame and the protective frame is arranged at the bottom end of the material injection port, the material guide pipe extends to the inner side of the mold, and the material guide pipe is communicated with the inner flow channel of the mold, and a constant temperature component is arranged on the outer side of the material guide pipe.

[0006] In the above scheme, the upper mold frame, protective frame, lower mold frame and base are stacked and installed in order from top to bottom, and the positioning rod and the positioning cylinder are ensured to fit closely to achieve accurate positioning of the mold. Molten material is added to the injection port on the upper end face of the upper mold frame, and the temperature of the guide pipe is controlled by the constant temperature component to make the molten material flow in the guide pipe in a molten state. When the molten material enters the inner side of the mold through the guide pipe, due to the runner design of the mold, the molten material will form a preset shape in the mold.

[0007] As a preferred embodiment of the above technical solution, the constant temperature component includes an insulating sleeve wrapped on the outer wall of the material guide tube, a thermal wire is buried inside the insulating sleeve, a protective sleeve is wrapped outside the insulating sleeve, and two terminal ends of the thermal wire are respectively located on both sides of the protective sleeve.

[0008] In the above scheme, the constant temperature of the molten material on the way through the material guide tube into the mold cavity is controlled by the provided heat conductive wire, and the heat is prevented from dissipating by the provided heat insulating sleeve, so that the heat is not transferred to the outside, and the molten material can be quickly cooled after entering the mold, thereby more effectively maintaining the product quality and efficiency, and the heat insulating sleeve also plays the role of keeping the material guide tube warm.

[0009] As a preferred embodiment of the above technical solution, a mounting groove with a spiral structure is provided on the inner wall of the heat insulation sleeve, the heat conductive wire is arranged inside the mounting groove, and the heat conductive wire is gap-matched with the outer wall of the material guide tube.

[0010] In the above solution, the mounting groove is used to provide a safe area for the thermal wire so that the thermal wire can be accommodated in the thermal insulation sleeve.

[0011] As a preferred embodiment of the above technical solution, the heat conductive wire is spirally wound in a mounting groove on the outer wall of the material guiding tube, and the outer surface of the heat conductive wire is coated with a high temperature resistant insulating layer.

[0012] In the above scheme, the heat of the heat-conducting wire can be evenly dissipated by spiral winding, and the high-temperature resistant insulating layer can achieve the effect of periodic continuous operation.

[0013] As a preferred embodiment of the above technical solution, the mold includes an upper mold and a lower mold, and the upper mold and the lower mold are combined up and down to form a mold cavity for forming the water gun buckle.

[0014] In the above solution, the molten material will form a preset shape in the mold cavity formed by the combination of the upper mold and the lower mold.

[0015] As a preferred embodiment of the above technical solution, limiting holes are provided on both sides of the upper end surface of the lower mold frame, and guide rods adapted to the limiting holes are fixed to the upper end surface of the base.

[0016] In the above scheme, through the cooperation of the limit holes and the guide rods, the lower mold frame can be installed and fixed on the base more accurately, avoiding displacement or loosening due to improper operation or vibration, which helps to ensure accurate alignment during the injection molding process and keep the mold tightly closed.

[0017] As a preferred embodiment of the above technical solution, the discharge end of the injection port is connected to the feed end of the guide tube for circulating the molten material.

[0018] In the above scheme, the discharge end of the injection port is connected to the feed end of the material guide pipe to form a smooth flow channel. This design is conducive to the effective transportation and control of the molten material.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] In the utility model, the constant temperature of the molten material on the way through the material guide pipe into the mold cavity is controlled by the arranged heat conductive wire, and the heat insulating sleeve is arranged so that the heat will not be dissipated, so that the heat will not be transferred to the outside, and the molten material can be quickly cooled after entering the mold, so that the product quality and efficiency are more effectively maintained, and the heat insulating sleeve also plays a role in keeping the material guide pipe warm. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a water gun buckle injection mold for an automobile;

[0022] Figure 2 A schematic diagram of the internal structure of a water gun buckle injection mold for an automobile after removing the protective frame;

[0023] Figure 3 This is a schematic diagram of the internal structure of a water gun buckle injection mold for an automobile after removing the protective frame and the lower mold frame;

[0024] Figure 4 It is a schematic diagram of the front view and cross-section structure of a water gun buckle injection mold for an automobile;

[0025] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0026] In the figure: 10, upper mold frame; 11, protective frame; 12, lower mold frame; 121, limit hole; 13, base; 131, guide rod; 14, positioning rod; 15, positioning cylinder; 16, mold; 161, upper mold; 162, lower mold; 17, injection port; 18, material guide pipe; 20, thermal insulation sleeve; 21, thermal wire; 22, protective sleeve; 23, installation groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Example 1

[0028] like Figure 1-5As shown, the utility model provides a technical solution: an automobile water gun buckle injection mold, comprising an upper mold frame 10, a protective frame 11, a lower mold frame 12 and a base 13 stacked in sequence from top to bottom, the four corners of the lower end surface of the upper mold frame 10 are fixedly connected with positioning rods 14, the four corners of the upper end surface of the lower mold frame 12 are embedded with positioning cylinders 15 adapted to the positioning rods 14, a mold 16 is arranged on the inner side of the lower mold frame 12, an injection port 17 is opened on the upper end surface of the upper mold frame 10, and a guide pipe 18 penetrating the upper mold frame 10 and the protective frame 11 is arranged at the bottom of the injection port 17, the guide pipe 18 extends to the inner side of the mold 16, and the guide pipe 18 is connected to the inner side of the mold 16 The side flow channel is connected, and a constant temperature component is arranged on the outside of the guide tube 18. During specific use, the upper mold frame 10, the protective frame 11, the lower mold frame 12 and the base 13 are stacked and installed in order from top to bottom, and it is ensured that the positioning rod 14 and the positioning cylinder 15 are closely matched to realize the accurate positioning of the mold 16. The molten material is added at the injection port 17 on the upper end face of the upper mold frame 10, and the temperature of the guide tube 18 is controlled by the constant temperature component, so that the molten material flows in the guide tube 18 in a molten state. When the molten material enters the inner side of the mold 16 through the guide tube 18, due to the flow channel design of the mold 16, the molten material will form a preset shape in the mold 16.

[0029] As an implementation method in this embodiment, Figure 4 and Figure 5 As shown, the constant temperature component includes an insulating sleeve 20 wrapped on the outer wall of the guide tube 18, a heat conductive wire 21 is buried inside the insulating sleeve 20, and a protective sleeve 22 is wrapped outside the insulating sleeve 20. The two terminal ends of the heat conductive wire 21 are respectively located on both sides of the protective sleeve 22. During specific use, the terminal ends of the heat conductive wire 21 are energized to generate heat, so as to control the constant temperature of the molten material on the way from the guide tube 18 to the cavity of the mold 16. The heat will not be dissipated by the setting of the insulating sleeve 20, so that the heat will not be transferred to the outside. The molten material can also be quickly cooled after entering the mold 16, which more effectively maintains the product quality and efficiency. The insulating sleeve 20 also plays a role in keeping the guide tube 18 warm.

[0030] As an implementation method in this embodiment, Figure 5 As shown, a mounting groove 23 with a spiral structure is provided on the inner wall of the thermal insulation sleeve 20, and the thermal wire 21 is arranged inside the mounting groove 23, and the thermal wire 21 is gap-matched with the outer wall of the guide tube 18. The mounting groove 23 is used to provide a safe area for the thermal wire 21, so that the thermal wire 21 can be accommodated on the thermal insulation sleeve 20. The thermal wire 21 is spirally wound in the mounting groove 23 on the outer wall of the guide tube 18, and the outer surface of the thermal wire 21 is coated with a high-temperature resistant insulating layer. The heat of the thermal wire 21 can be evenly dissipated by spiral winding, and the high-temperature resistant insulating layer can achieve a periodic continuous working effect.

[0031] As an implementation method in this embodiment, Figure 3 As shown, the mold 16 includes an upper mold 161 and a lower mold 162. The upper mold 161 and the lower mold 162 are combined to form a mold cavity for water gun buckle molding. The molten material will form a preset shape in the mold cavity formed by the combination of the upper mold 161 and the lower mold 162.

[0032] As an implementation method in this embodiment, Figure 2 and Figure 3 As shown, limiting holes 121 are provided on both sides of the upper end surface of the lower mold frame 12, and guide rods 131 adapted for the limiting holes 121 are fixed on the upper end surface of the base 13. Through the cooperation of the limiting holes 121 and the guide rods 131, the lower mold frame 12 can be more accurately installed and fixed on the base 13, avoiding displacement or loosening due to improper operation or vibration, which helps to ensure accurate centering during the injection molding process and maintain the tight closure of the mold 16, thereby improving the molding quality of the product and the stability of production. The guide rods 131 can also provide smooth guiding when the mold 16 is opened and closed.

[0033] As an implementation method in this embodiment, Figure 4 As shown, the discharge end of the injection port 17 is connected to the feed end of the guide tube 18 to circulate the molten material, and the discharge end of the injection port 17 is connected to the feed end of the guide tube 18 to form a smooth circulation channel. This design is conducive to the effective transportation and control of the molten material.

[0034] Working principle: First, stack and install the upper mold frame 10, the protective frame 11, the lower mold frame 12 and the base 13 in order from top to bottom, and ensure that the positioning rod 14 and the positioning cylinder 15 are tightly matched to achieve accurate positioning of the mold 16, add molten material at the injection port 17 on the upper end face of the upper mold frame 10, and control the temperature of the guide pipe 18 through the constant temperature component to make the molten material flow in the guide pipe 18 in a molten state. When the molten material enters the inner side of the mold 16 through the guide pipe 18, due to the flow channel design of the mold 16, the molten material will form a preset shape in the mold 16. After cooling and solidifying in the mold, open the lower mold frame, take out the formed water gun buckle, and clean and maintain the mold in preparation for the next injection molding production.

[0035] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. An automobile water gun buckle injection mold, comprising an upper mold frame (10), a protective frame (11), a lower mold frame (12) and a base (13) stacked in sequence from top to bottom, characterized in that: The four corners of the lower end surface of the upper mold frame (10) are fixedly connected with positioning rods (14), the four corners of the upper end surface of the lower mold frame (12) are embedded with positioning cylinders (15) adapted to the positioning rods (14), the inner side of the lower mold frame (12) is provided with a mold (16), the upper end surface of the upper mold frame (10) is provided with an injection port (17), the bottom end of the injection port (17) is provided with a material guide pipe (18) penetrating the upper mold frame (10) and the protective frame (11), the material guide pipe (18) extends to the inner side of the mold (16), and the material guide pipe (18) is communicated with the inner flow channel of the mold (16), and the outer side of the material guide pipe (18) is provided with a constant temperature component.

2. The automobile water gun buckle injection mold according to claim 1, characterized in that: The constant temperature component comprises a heat insulating sleeve (20) wrapped around the outer wall of the material guide tube (18), a heat conductive wire (21) is embedded inside the heat insulating sleeve (20), a protective sleeve (22) is wrapped outside the heat insulating sleeve (20), and two connection terminals of the heat conductive wire (21) are respectively located on two sides of the protective sleeve (22).

3. The automobile water gun buckle injection mold according to claim 2, characterized in that: A mounting groove (23) with a spiral structure is provided on the inner wall of the heat insulating sleeve (20), the heat conducting wire (21) is arranged inside the mounting groove (23), and the heat conducting wire (21) is gap-matched with the outer wall of the material guiding tube (18).

4. The automobile water gun buckle injection mold according to claim 3, characterized in that: The heat-conducting wire (21) is spirally wound in a mounting groove (23) on the outer wall of the material guide tube (18), and the outer surface of the heat-conducting wire (21) is coated with a high-temperature resistant insulating layer.

5. The automobile water gun buckle injection mold according to claim 1, characterized in that: The mold (16) comprises an upper mold (161) and a lower mold (162), and the upper mold (161) and the lower mold (162) are combined up and down to form a mold cavity for forming a water gun buckle.

6. The automobile water gun buckle injection mold according to claim 1, characterized in that: Limiting holes (121) are provided on both sides of the upper end surface of the lower mold frame (12), and the upper end surface of the base (13) is fixed with guide rods (131) adapted to fit the limiting holes (121).

7. The automobile water gun buckle injection mold according to claim 1, characterized in that: The discharge end of the injection port (17) is connected to the feed end of the material guide pipe (18) for circulating the molten material.

Images