Exhaust structure of automobile seat foaming mold

Abstract

The utility model relates to the field of foaming moulds, in particular to an exhaust structure of an automobile seat foaming mould, which comprises an upper mould and a lower mould, an exhaust mechanism is arranged on the upper surface of the upper mould in an array mode, the exhaust mechanism comprises an adjusting screw rod, a vertical pipe and a mounting base, and inner threads are arranged on the inner side of the vertical pipe. Exhaust pipes are arranged below the inner threads and located on the inner side wall of the vertical pipe in an annular array mode, installation grooves are formed in the positions, located on the upper surface of the installation base, of one ends of the exhaust pipes in an annular array mode, conical sealing caps are arranged above the installation grooves, springs are installed between the conical sealing caps and the installation grooves, and sealing plugs are installed on the outer sides of the lower ends of the adjusting screw rods. After the conical sealing cap is pulled to cover the upper surface of the mounting groove, a user can be reminded to screw the adjusting screw rod and cover the sealing plug at the position of the exhaust pipe so as to disconnect an exhaust passage, and meanwhile, the lower end of the sealing plug covers the lower end of the vertical pipe so as to prevent foamed raw materials from blocking the exhaust pipe.

Description

Technical Field

[0001] The utility model relates to the field of foaming moulds, in particular to an exhaust structure of a foaming mould for an automobile seat. Background Art

[0002] In the production process of car seats, EPP raw materials need to be foamed. The foaming process is usually carried out in a mold. A foaming mold is a mold used to produce foam parts manufactured according to the requirements of the foaming part design and foaming production process. In the foaming process of the seat sponge, the raw materials are injected into the mold, and then the mold is closed for heating to make the material foamed and formed. During the foaming process, a large amount of gas will be generated in the mold, thereby increasing the pressure in the mold. During the foaming process, gas will be discharged from the foaming mold. These gases mainly include the air that already exists in the mold cavity and the carbon dioxide gas generated by the raw materials during the reaction. If the mold is not well vented, a large amount of gas will accumulate in the mold cavity to generate a large back pressure, thereby preventing the EPP raw material from filling the mold quickly, and eventually forming a local shortage of material, resulting in a decrease in the appearance quality of the molded product.

[0003] However, the exhaust structure and the mold cavity of the foaming mold currently on the market are interconnected, and when the raw material in the exhaust is not required to be foamed, it will cause the raw material to expand and enter the exhaust passage. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an exhaust structure for a foaming mold for an automobile seat, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions: an exhaust structure of a car seat foaming mold, comprising an upper mold and a lower mold, an exhaust mechanism is installed in an array on the upper surface of the upper mold, and the exhaust mechanism includes: an adjusting screw, a vertical pipe, and a mounting base, an inner tooth pattern is opened on the inner side of the vertical pipe, an exhaust pipe is opened in a circular array on the inner side wall of the vertical pipe below the inner tooth pattern, an installation groove is opened in a circular array on the upper surface of the mounting base, a conical sealing cap is arranged above the installation groove, a spring is installed between the conical sealing cap and the installation groove, and a closing plug is installed on the outer side of the lower end of the adjusting screw.

[0006] As a further solution of the utility model: a clamping sleeve is installed on the outer side wall of the lower mold, an upper limit ratchet is installed on the outer side wall of the upper mold above the clamping sleeve, and a raw material tube is opened on the upper surface of the upper mold.

[0007] As a further solution of the utility model: a mold is installed inside the lower mold, and a positioning groove is opened on the upper surface of the lower mold.

[0008] As a further solution of the present invention: the outer diameter of the closure plug is longer than the inner diameter of the inner thread.

[0009] As a further solution of the utility model: the exhaust pipe and the installation groove are arranged to be connected, and the adjusting screw is meshed and rotatably connected with the internal thread.

[0010] As a further solution of the utility model: the raw material tube and the upper mold are arranged through, and the upper limit ratchet is clamped with the clamping sleeve.

[0011] As a further solution of the utility model: the exhaust mechanism is fixedly connected to the upper mold through the mounting base.

[0012] As a further solution of the utility model: a limit pin is installed on the lower surface of the upper mold at a position corresponding to the positioning slot.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. After the closing plug at the lower end of the control adjusting screw moves upward a certain distance inside the vertical pipe as a whole, the shielding effect of the closing plug on the exhaust pipe is disconnected, and the high-pressure gas inside the lower mold and the upper mold will be blown upward through the passage between the exhaust pipe and the installation groove.

[0015] 2. After the conical sealing cap is pulled and covered on the upper surface of the installation groove, the user can be reminded to turn the adjusting screw, and the sealing plug is placed on the exhaust pipe to disconnect the exhaust passage. At the same time, the lower end of the sealing plug is covered on the lower end of the vertical pipe to prevent the foaming material from clogging the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an exhaust structure of a foaming mold for a car seat;

[0017] Figure 2 It is a structural schematic diagram of an exhaust mechanism in an exhaust structure of a foaming mold for an automobile seat;

[0018] Figure 3 An exploded view of an exhaust mechanism in an exhaust structure of a foaming mold for an automobile seat;

[0019] Figure 4 A schematic diagram of the internal structure of an exhaust mechanism in an exhaust structure of a foaming mold for an automobile seat;

[0020] Figure 5 The figure is a bottom view of an upper mold in a venting structure of a foaming mold for a car seat.

[0021] In the figure: 1. upper mold; 2. lower mold; 3. exhaust mechanism; 4. raw material pipe; 5. upper limit ratchet; 6. clamping sleeve; 7. mold; 8. positioning slot; 301. adjusting screw; 302. vertical pipe; 303. mounting base; 304. closing plug; 305. inner thread; 306. mounting groove; 307. conical sealing cap; 308. spring; 309. exhaust pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-5 As shown, this embodiment provides an exhaust structure of a foaming mold for a car seat, including an upper mold 1 and a lower mold 2. An exhaust mechanism 3 is installed in an array on the upper surface of the upper mold 1. The exhaust mechanism 3 includes: an adjusting screw 301, a vertical pipe 302, and a mounting base 303. The exhaust mechanism 3 is fixedly connected to the upper mold 1 through the mounting base 303. An inner thread 305 is provided on the inner side of the vertical pipe 302. The adjusting screw 301 is meshed and rotatably connected with the inner thread 305. The lower part of the vertical pipe is located below the inner thread 305. An exhaust pipe 309 is provided in a circular array on the inner wall of 302, and an installation groove 306 is provided in a circular array on the upper surface of the mounting base 303. The exhaust pipe 309 and the installation groove 306 are connected. A conical sealing cap 307 is provided above the installation groove 306, and a spring 308 is installed between the conical sealing cap 307 and the installation groove 306. A closing plug 304 is installed on the outer side of the lower end of the adjusting screw 301, and the outer diameter length of the closing plug 304 is greater than the inner diameter length of the inner tooth pattern 305.

[0024] like Figure 2-5 As shown, in this embodiment, a clamping sleeve 6 is installed on the outer wall of the lower mold 2, and an upper limit ratchet 5 is installed on the outer wall of the upper mold 1 above the clamping sleeve 6. The upper limit ratchet 5 is clamped with the clamping sleeve 6, and a raw material tube 4 is provided on the upper surface of the upper mold 1. The raw material tube 4 is connected with the upper mold 1, and a mold 7 is installed inside the lower mold 2. A positioning groove 8 is provided on the upper surface of the lower mold 2, and a limit pin is installed on the lower surface of the upper mold 1 at the position corresponding to the positioning groove 8.

[0025] The working principle of the utility model is as follows: when processing and foaming, after the raw material is filled into the mold 7 inside the lower mold 2, the upper mold 1 is moved as a whole to the position of the lower mold 2, so that the raw material inside is subjected to hot pressing and foaming. When exhaust is required, a certain torque is applied to the adjusting screw 301 inside the exhaust mechanism 3 to control the inner tooth pattern 305 of the inner wall of the vertical pipe 302 of the adjusting screw 301 as a whole to mesh and rotate, and after the sealing plug 304 at the lower end of the adjusting screw 301 is controlled to move upward a certain distance inside the vertical pipe 302 as a whole, the shielding effect of the sealing plug 304 on the exhaust pipe 309 is disconnected. , the high-pressure gas inside the lower mold 2 and the upper mold 1 will be blown upward through the passage between the exhaust pipe 309 and the installation groove 306, so that the conical sealing cap 307 moves upward as a whole and pulls the spring 308 to deform. When the internal gas is discharged, the conical sealing cap 307 will be pulled to cover the upper surface of the installation groove 306 under the action of the spring 308, and the user can be reminded to turn the adjusting screw 301 and cover the closing plug 304 on the position of the exhaust pipe 309 to disconnect the exhaust passage. At the same time, the lower end of the closing plug 304 is covered on the lower end of the vertical pipe 302 to prevent the foaming raw material from clogging the exhaust pipe.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust structure for a foaming mold for an automobile seat, comprising an upper mold (1) and a lower mold (2), characterized in that: An exhaust mechanism (3) is installed in an array on the upper surface of the upper mold (1), and the exhaust mechanism (3) includes: an adjusting screw (301), a vertical pipe (302), and a mounting base (303). An inner thread (305) is provided on the inner side of the vertical pipe (302), and an exhaust pipe (309) is provided in a circular array on the inner side wall of the vertical pipe (302) below the inner thread (305). An installation groove (306) is provided in a circular array on the upper surface of the mounting base (303), and a conical sealing cap (307) is provided above the installation groove (306). A spring (308) is installed between the conical sealing cap (307) and the installation groove (306), and a sealing plug (304) is installed on the outer side of the lower end of the adjusting screw (301).

2. The exhaust structure of the automobile seat foaming mold according to claim 1, characterized in that: The outer wall of the lower mold (2) is provided with a clamping sleeve (6), and an upper limit ratchet (5) is provided on the outer wall of the upper mold (1) above the clamping sleeve (6), and a raw material tube (4) is provided on the upper surface of the upper mold (1).

3. The exhaust structure of the automobile seat foaming mold according to claim 1, characterized in that: A mold (7) is installed inside the lower mold (2), and a positioning groove (8) is provided on the upper surface of the lower mold (2).

4. The exhaust structure of the automobile seat foaming mold according to claim 1, characterized in that: The outer diameter of the sealing plug (304) is greater than the inner diameter of the inner thread (305).

5. The exhaust structure of the automobile seat foaming mold according to claim 1, characterized in that: The exhaust pipe (309) is connected to the installation groove (306), and the adjustment screw (301) is meshed and rotatably connected to the inner thread (305).

6. The exhaust structure of the automobile seat foaming mold according to claim 2, characterized in that: The raw material tube (4) is interlinked with the upper mold (1), and the upper limit ratchet (5) is clamped with the clamping sleeve (6).

7. The exhaust structure of the automobile seat foaming mold according to claim 1, characterized in that: The exhaust mechanism (3) is fixedly connected to the upper mold (1) via the mounting base (303).

8. The exhaust structure of the automobile seat foaming mold according to claim 3, characterized in that: A limit pin is installed on the lower surface of the upper mold (1) at a position corresponding to the positioning slot (8).

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