Slide slender needle cooling structure

Abstract

The utility model belongs to the field of dies, and provides a slide slender needle cooling structure, a through air channel cavity is arranged in a slender needle, the air channel cavity comprises an air inlet section and a cooling section, the thickness of the pipe wall of the air inlet section is larger than that of the pipe wall of the cooling section, the length of the air inlet section is smaller than that of the cooling section, and the diameter of the air inlet section is larger than that of the cooling section. The slender needle is mounted in the mold, one end with a cooling section of the slender needle penetrates through a product and is connected with an exhaust cavity channel of the mold, and one end with an air inlet section of the slender needle is connected with an air inlet cavity channel of the mold; according to the utility model, the slender needle is arranged in a cooling structure in the mold, so that the cooling effect of a product is effectively ensured, the production efficiency and the product quality are improved, and the production environment is improved, thereby meeting the normal ejection and structure requirements of the product.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a cooling structure for a sliding elongated needle. Background Art

[0002] In plastic molds, some products have long and thin holes or small holes. Conventional mold structures do not cool the mold parts due to the strength of the mold parts, or extend the mold opening time for natural cooling. This results in poor cooling effect during injection molding, a long molding cycle, and product sticking or deformation, which affects production efficiency and product quality. Utility Model Content

[0003] In view of the above technical problems, the utility model provides a linear elongated needle cooling structure to solve the cooling problem of products with elongated holes or small holes in the prior art.

[0004] Other features and advantages of the present disclosure will become apparent from the following detailed description, or may be learned in part by the practice of the present disclosure.

[0005] The utility model discloses a cooling structure for a sliding slender needle, wherein the slender needle has a through air path cavity, the air path cavity comprises an air inlet section and a cooling section, the tube wall thickness of the air inlet section is greater than the tube wall thickness of the cooling section, the length of the air inlet section is less than the length of the cooling section, the diameter of the air inlet section is greater than the diameter of the cooling section, the slender needle is installed in a mold, one end of the cooling section passes through the exhaust cavity of the mold after the product, and one end of the air inlet section is connected to the air inlet cavity of the mold.

[0006] Furthermore, the slender needle has a head with a T-shaped cross section at one end of the air inlet section, the head of the slender needle is limited between the first row seat and the first row insert on one side of the mold, and the slender needle passes through the first row insert, the air inlet cavity is formed in the first row seat and the first row insert, and the first row seat is connected to the ejection cylinder. The slender needle is integrated into the mold, and the first row seat and the first row insert realize air intake and drive movement, so that the ejection of the product is not affected while cooling.

[0007] Furthermore, the exhaust cavity is formed in the second row insert and the second row seat on one side of the mold, and the outlet of one end of the slender needle with the cooling section is connected to the second row insert. The second row insert and the second row seat are used to achieve exhaust, which does not affect the ejection of the product and can also prevent the exhaust from leaking in the mold.

[0008] Furthermore, one end of the cooling section of the slender needle is tapered, so that the air outlet of the slender needle is tightly connected to the mold, which is convenient for air leakage.

[0009] Furthermore, the inlet end of the air intake cavity is connected to a solenoid valve through an air pipe, a flow control valve is provided between the air pipe and the solenoid valve, and the solenoid valve is connected to an air compressor.

[0010] Furthermore, the needle body of the elongated needle is located on the rear mold core of the mold.

[0011] The technical solution disclosed in this disclosure has the following beneficial effects:

[0012] The cooling structure with slender needles set in the mold effectively ensures the cooling effect of the product, improves production efficiency and product quality, and improves the production environment, thereby meeting the normal ejection and structural requirements of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the cooling structure of the row of elongated needles in the embodiment of this specification;

[0014] Figure 2 for Figure 1 The structural diagram of some components is omitted;

[0015] Figure 3 for Figure 2 The structural diagram of some components is omitted;

[0016] Figure 4 is a schematic diagram of the structure of the elongated needle in the embodiment of this specification;

[0017] Figure 5 2 is a cross-sectional view of an elongated needle in an embodiment of the present specification.

[0018] Wherein, the accompanying drawings are described as follows:

[0019] 10. Slender needle; 101. Air inlet section; 102. Cooling section; 20. Mold; 201. Air inlet cavity; 202. First row insert; 203. First row seat; 204. Top cylinder; 205. Second row insert; 206. Second row seat; 207. Air pipe; 208. Solenoid valve; 209. Flow control valve; 210. Rear mold core. DETAILED DESCRIPTION

[0020] Example embodiments will now be described more fully with reference to the accompanying drawings.

[0021] The accompanying drawings are only schematic illustrations of the present disclosure. The same reference numerals in the drawings represent the same or similar parts, and thus their repeated description will be omitted. It is understood that the proportions of the various components in the drawings do not constitute limitations of the present disclosure.

[0022] like Figure 1-5As shown, an embodiment of the present specification provides a cooling structure for a sliding slender needle 10, wherein the slender needle 10 has a through air path cavity, the air path cavity comprises an air inlet section 101 and a cooling section 102, the tube wall thickness of the air inlet section 101 is greater than the tube wall thickness of the cooling section 102, the length of the air inlet section 101 is less than the length of the cooling section 102, the diameter of the air inlet section 101 is greater than the diameter of the cooling section 102, the slender needle 10 is installed in a mold 20, and one end of the cooling section 102 passes through an exhaust cavity of the mold 20 connected to the product, and one end of the air inlet section 101 is connected to the air inlet cavity 201 of the mold 20.

[0023] The slender needle 10 has an air inlet section 101 at one end thereof, and a head with a T-shaped cross section. The head of the slender needle 10 is limited between the first row seat 203 and the first row insert 202 on one side of the mold 20, and the slender needle 10 passes through the first row insert 202. The air inlet channel 201 is formed in the first row seat 203 and the first row insert 202, and the first row seat 203 is connected to the ejection cylinder. The slender needle 10 is integrated into the mold 20, and the first row seat 203 and the first row insert 202 are used to realize air intake and drive movement, so that the ejection of the product is not affected while cooling.

[0024] The exhaust channel is formed in the second row insert 205 and the second row seat 206 on one side of the mold 20, and the outlet of one end of the slender needle 10 with the cooling section 102 is connected to the second row insert 205. The second row insert 205 and the second row seat 206 are used to achieve exhaust, which does not affect the ejection of the product and can also prevent the exhaust from leaking in the mold 20.

[0025] One end of the elongated needle 10 with the cooling section 102 is tapered, so that the air outlet of the elongated needle 10 is tightly connected to the mold 20, which is convenient for air leakage.

[0026] The inlet end of the air inlet cavity 201 is connected to a solenoid valve 208 through an air pipe 207 , a flow control valve 209 is provided between the air pipe 207 and the solenoid valve 208 , and the solenoid valve 208 is connected to an air compressor.

[0027] The needle body of the elongated needle 10 is located on the rear mold core 210 of the mold 20 .

[0028] In summary, the above-mentioned product can be made of PP rubber, which is a slender pipe fitting with weak strength in the middle hole. Conventional cooling is difficult to achieve and difficult to process. In order to shorten the forming cycle, the utility model designs a cooling structure for the positioning slender needle 10; in this structure, a smaller diameter cooling section 102 is provided at the small end of the slender needle 10 to serve as an air path for compressed air, and a larger air inlet end is designed at the large end of the positioning needle to intake air. Then, corresponding air paths are designed on the first row seat 203 and the first row insert 202 of the mold 20 to connect, and a sealing ring is provided at the fitting position with the slender needle 10. A cushion block and an air nozzle joint are provided on the outside of the first row seat 203, and air is taken in from here; an exhaust cavity is designed at the outlet of the slender needle 10 to discharge the compressed gas outside the template to ensure that the air path is unobstructed; an electromagnetic valve 208 and an air pipe 207 are added between the air pressure pipeline of the air compressor and the air nozzle joint on the first row seat 203, and a flow control valve 209 is installed on the electromagnetic valve 208 to adjust the amount of compressed air to prevent the row from forming a recoil force due to excessive air pressure during movement, which causes the row of slender needles 10 to shake or deform, affecting its mold closing effect or damage, and at the same time reducing the noise generated by the air pressure.

[0029] During operation, gas circulates in the slender needle 10 to cool the inside of the pipe product. After the cooling time is over, the ejection cylinder pulls the first positioning seat to separate the slender needle 10 from the pipe product.

[0030] The utility model has a cooling structure in which the slender needle 10 is arranged in the mold 20, which effectively ensures the cooling effect of the product, improves the production efficiency and product quality, and improves the production environment, thereby meeting the normal ejection and structural requirements of the product.

[0031] Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure.

Claims

1. A linear elongated needle cooling structure, characterized in that: The slender needle has a through air path cavity, and the air path cavity includes an air inlet section and a cooling section. The tube wall thickness of the air inlet section is greater than the tube wall thickness of the cooling section, the length of the air inlet section is less than the length of the cooling section, and the diameter of the air inlet section is greater than the diameter of the cooling section. The slender needle is installed in the mold, and one end of the cooling section passes through the exhaust cavity of the mold after the product, and one end of the air inlet section is connected to the air inlet cavity of the mold.

2. The cooling structure for the row of elongated needles according to claim 1, characterized in that: The slender needle has a head with a T-shaped cross-section at one end of the air inlet section, the head of the slender needle is limited between the first row seat and the first row insert on one side of the mold, and the slender needle passes through the first row insert, the air inlet cavity is formed in the first row seat and the first row insert, and the first row seat is connected to the ejection cylinder.

3. The cooling structure for the row of elongated needles according to claim 1, characterized in that: The exhaust cavity is formed in a second slide insert and a second slide seat at one side of the mold, and an outlet of one end of the elongated needle having the cooling section is connected to the second slide insert.

4. The cooling structure for the row of elongated needles according to claim 1, characterized in that: One end of the elongated needle having the cooling section is tapered.

5. The cooling structure for the row of elongated needles according to claim 1, characterized in that: The inlet end of the air inlet cavity is connected to a solenoid valve through an air pipe, a flow control valve is arranged between the air pipe and the solenoid valve, and the solenoid valve is connected to an air compressor.

6. The cooling structure for the row of elongated needles according to claim 1, characterized in that: The needle body of the elongated needle is located on the rear mold core of the mold.

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