Extrusion-free structure of foam product formed by opening mold at position of backrest armrest frame

By incorporating movable blocks and tensioning components into the mold for the armrest frame of the car seat backrest, the tearing problem caused by the lack of slope in the armrest frame position was solved, enabling efficient production and high-quality foamed products.

CN223948362UActive Publication Date: 2026-02-27SUZHOU BINGSONG PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202520630907.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-02-27
Estimated Expiration
2035-04-07

AI Technical Summary

Technical Problem

The armrest frame of the car seat backrest mold is deep and has no slope angle, which results in large pressure between the product and the mold during mold opening, which can easily cause tearing, affecting product quality and production efficiency.

Method used

A movable block is set inside the upper mold armrest cavity, and the upper and lower molds are tightly fitted by the upper mold and the lower mold, and the product is squeezed when the mold is opened, through the tensioning component and the locking mechanism, and the screw and threaded sleeve are moved by the motor.

Benefits of technology

It reduces tearing of foam handrail frames, improves production efficiency and product quality, reduces scrap rate, and avoids flash around the product.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223948362U_ABST
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Abstract

The utility model discloses an extrusion-free structure for a backrest armrest frame position mold opening foaming product, and relates to the technical field of automobile seats. The handrail mold comprises an upper mold, a lower mold is arranged at the top of the upper mold, tensioning assemblies are fixedly connected to the top of the upper mold and the front side of the lower mold, and a handrail mold cavity is formed in the left side of the front side of the lower mold. Through the arrangement of the upper die, the lower die and the movable block, the problem that a product is easy to damage during die opening is solved, as the armrest frame of the die for the automobile seat backrest with the armrest frame is deep and has no slope design, the pressure between the die and the product is large during die opening, the foaming armrest frame is easy to tear under the pressure, and the product quality is improved. And the movable block is arranged to work cooperatively with the lower die and the upper die, so that products can be prevented from being extruded in the die opening process, waste products generated due to extrusion tearing are reduced, and the production efficiency and the production quality of the products are improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile seat, especially relates to the backrest handrail frame position open mould foaming product exempts from extrusion structure. BACKGROUND

[0002] The automobile seat backrest foaming mould is a mould specially designed for the automobile seat backrest foaming part, which is used for manufacturing the foaming backrest with specific shape and contour, is usually made of aluminum alloy material, has high strength and durability, and is a key to ensuring the quality of the seat backrest foaming part.

[0003] For the automobile seat backrest with handrail frame mould, since the product is with an upper mould, the handrail frame position is relatively deep and has no slope angle, the product and the mould are pressed relatively large during mould opening, and tearing of the foaming handrail frame position is caused, the quality of the whole foaming part is seriously affected once the tearing of the handrail frame position occurs, and the product may be even scrapped, the production cost is increased, the production efficiency is reduced, the quality of the product is affected, and the utility is not favorable.

[0004] Therefore, the backrest handrail frame position open mould foaming product exempts from extrusion structure is provided to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a backrest handrail frame position open mould foaming product exempts from extrusion structure, which is characterized by the movable block arranged in the handrail mould cavity of the upper mould, and solves the problem of the automobile seat backrest with handrail frame mould in the prior art, i.e., the handrail frame position is relatively deep and has no slope angle, the product and the mould are pressed relatively large during mould opening, and tearing of the foaming handrail frame position is caused.

[0006] To solve the above technical problems, the utility model is realized by the following technical schemes.

[0007] The utility model discloses a backrest handrail frame position open mould foaming product exempts from extrusion structure, which is characterized by the movable block arranged in the handrail mould cavity of the upper mould, and solves the problem of the automobile seat backrest with handrail frame mould in the prior art, i.e., the handrail frame position is relatively deep and has no slope angle, the product and the mould are pressed relatively large during mould opening, and tearing of the foaming handrail frame position is caused. The utility model discloses a backrest handrail frame position open mould foaming product exempts from extrusion structure, which is characterized by the movable block arranged in the handrail mould cavity of the upper mould, and solves the problem of the automobile seat backrest with handrail frame mould in the prior art, i.e., the handrail frame position is relatively deep and has no slope angle, the product and the mould are pressed relatively large during mould opening, and tearing of the foaming handrail frame position is caused. The utility model discloses a backrest handrail frame position open mould foaming product exempts from extrusion structure, which is characterized by the movable block arranged in the handrail mould cavity of the upper mould, and solves the problem of the automobile seat backrest with handrail frame mould in the prior art, i.e., the handrail frame position is relatively deep and has no slope angle, the product and the mould are pressed relatively large during mould opening, and tearing of the foaming handrail frame position is caused. The utility model discloses a backrest handrail frame position open mould foaming product exempts from extrusion structure, which is characterized by the movable block arranged in the handrail mould cavity of the upper mould, and solves the problem of the automobile seat backrest with handrail frame mould in the prior art, i.e., the handrail frame position is relatively deep and has no slope angle, the product and the mould are pressed relatively large during mould opening, and tearing of the foaming handrail frame position is caused.

[0008] The utility model further sets up, the inner chamber of handrail mould cavity and the rear side of handrail fixed mould all are equipped with fixed slot with movable block cooperation uses, be provided with pivot between lower mould and upper mould, fixed slot can conveniently install and place movable block, pivot can conveniently open mould or close mould to upper mould and lower mould.

[0009] The utility model further sets up, the locking mechanism includes extrusion frame, the rear side fixedly connected with rotating frame of extrusion frame, the both sides between rotating frame inner chamber are movably connected with rotating shaft, the rear side fixedly connected with mounting panel of rotating shaft, the bottom of mounting panel is fixedly connected with lower mould, extrusion frame can insert inside control shell and lock upper mould and lower mould, rotating frame can cooperate with rotating shaft and be convenient for extrusion frame changes the use angle, mounting panel can conveniently install and fix rotating shaft.

[0010] The utility model further sets up, the left side of screw rod is movably connected with the inner wall of control shell, the thread of screw rod surface both sides is opposite, the right side of screw rod is movably connected with the inner wall of control shell can increase the stability in the rotation process of screw rod, the thread of screw rod both sides is opposite can control two thread sleeves move to opposite side or opposite side simultaneously.

[0011] The utility model further sets up, the front side fixedly connected with slide between the both sides of adjusting shell inner chamber, the surface of slide rod is slidably connected with slide sleeve, the bottom of slide sleeve is fixedly connected with jack rod, slide rod and slide sleeve can limit jack rod, prevent jack rod from appearing deformation and deviation when extruding extrusion frame inner chamber slope.

[0012] The utility model further sets up, the both sides of rotating shaft are movably connected with the inner wall of rotating frame, the shape of extrusion frame is C, the top of extrusion frame inner chamber both sides is equipped with slope, bearing can increase the stability when rotating frame rotates, the slope of extrusion frame inner chamber can cooperate with jack rod and control upper mould and lower mould tightly.

[0013] The utility model further sets up, the both sides of control shell and upper mould are fixedly connected through bolt, the both sides of control shell front side all are equipped with the opening with locking mechanism cooperation uses, bolt can increase the stability of control shell and upper mould between connection, also can conveniently control shell's dismouting, the opening can conveniently extrusion frame enters the inner chamber of control shell.

[0014] The utility model further sets up, the both sides of control shell inner chamber are fixedly connected with slide, the both sides of extrusion frame are fixedly connected with slide strip, slide and slide strip can increase the stability in the tightening process of extrusion frame, prevent extrusion frame from appearing deviation when being extruded by jack rod.

[0015] The utility model has the following beneficial effects.

[0016] 1, the utility model discloses a upper die, lower die and movable block's setting has solved the problem of the product breakage when opening mould, because the armrest frame part of the armrest frame frame mould of car seat backrest is deep and does not have slope design, the pressurization between mould and product is bigger when opening mould, can make the foaming armrest frame tear under pressure, influence final product quality, through setting movable block, make it and lower die and upper die cooperate and work, can avoid extruding product in the opening mould process, and then reduce the waste product produced because of extruding tear, improve production efficiency and product's production quality, reduce the scrappage rate of product.

[0017] 2, the utility model discloses a tensioning assembly, can make upper die and lower die after completing mould closing closely, avoid the gap between upper die and lower die, lead to the emergence of a large number of flash around foaming product, and the extrusion frame enters the inner chamber of control shell after upper die and lower die mould closing, moves through motor control screw rod and threaded sleeve, and the threaded sleeve movement makes the slope surface of extrusion frame inner chamber extrude, makes extrusion frame after being pressed make upper die and lower die close to each other, avoid the emergence of gap between two, prevent the emergence of flash around product. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be needed to use the drawing of the embodiment to make a brief introduction.

[0019] Figure 1 It is the stereogram of backrest armrest frame position open mould foaming product extrusion-free structure;

[0020] Figure 2 It is the movable block slide-out schematic view in backrest armrest frame position open mould foaming product extrusion-free structure;

[0021] Figure 3 It is the control shell sectional view in backrest armrest frame position open mould foaming product extrusion-free structure;

[0022] Figure 4 It is the adjustment shell sectional view in backrest armrest frame position open mould foaming product extrusion-free structure;

[0023] Figure 5 It is the locking mechanism schematic view in backrest armrest frame position open mould foaming product extrusion-free structure.

[0024] In the drawing: 1, upper die; 2, lower die; 3, armrest die cavity; 4, armrest fixed die; 5, movable block; 6, backrest die cavity; 7, tensioning assembly; 71, control shell; 72, adjusting shell; 73, motor; 74, screw rod; 75, threaded sleeve; 76, ejector rod; 77, locking mechanism; 771, extrusion frame; 772, rotating frame; 773, rotating shaft; 774, mounting plate; 8, slide rod; 9, slide sleeve; 10, slide; 11, slide bar. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be described below with reference to the drawings in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0026] Embodiment one

[0027] Please refer to Figures 1-5 The utility model discloses a backrest armrest frame position opening die foaming product extrusion-free structure, including upper die 1, the top of upper die 1 is provided with lower die 2, and the top of upper die 1 and the front side of lower die 2 are all fixedly connected with tensioning assembly 7, and the left side of the front side of lower die 2 is provided with armrest die cavity 3, and the left side of the front side of upper die 1 is fixedly connected with armrest fixed die 4, and the bottom of the inner chamber of armrest die cavity 3 is provided with movable block 5, and the front side of upper die 1 is provided with backrest die cavity 6, and tensioning assembly 7 includes control shell 71, the rear side of control shell 71 is fixedly connected with upper die 1, the rear side of the inner chamber of control shell 71 is fixedly connected with adjusting shell 72, the right side of the inner chamber of control shell 71 is fixedly connected with motor 73, the left side of the output end of motor 73 penetrates adjusting shell 72 and is fixedly connected with screw rod 74, the both sides on the surface of screw rod 74 are all fixedly connected with threaded sleeve 75, the top of threaded sleeve 75 is fixedly connected with ejector rod 76, and the opposite side of two ejector rods 76 all penetrates to the inner chamber of control shell 71, and the top of lower die 2 is fixedly connected with locking mechanism 77.

[0028] Specifically: armrest die cavity 3 can cooperate with armrest fixed die 4 to produce products, movable block 5 can prevent extrusion to products during opening die, improve the production efficiency and production quality of products, motor 73 can control the rotation of screw rod 74, screw rod 74 can cooperate with threaded sleeve 75 to control the use position of ejector rod 76, ejector rod 76 can extrude the slope on the both sides of the inner chamber of extrusion frame 771, make it control upper die 1 and lower die 2 tightly adhere to each other, and locking mechanism 77 can cooperate with control shell 71 to lock upper die 1 and lower die 2.

[0029] Embodiment two

[0030] Please refer to Figures 1-5On the basis of embodiment one, the inner cavity of the armrest mold cavity 3 and the rear side of the armrest fixed mold 4 are both provided with a fixed groove cooperating with the movable block 5, a rotating shaft is arranged between the lower mold 2 and the upper mold 1, the locking mechanism 77 comprises an extrusion frame 771, the rear side of the extrusion frame 771 is fixedly connected with a rotating frame 772, the two sides of the inner cavity of the rotating frame 772 are movably connected with a rotating shaft 773, the rear side of the rotating shaft 773 is fixedly connected with a mounting plate 774, the bottom of the mounting plate 774 is fixedly connected with the lower mold 2, the left side of the screw rod 74 is movably connected with the inner wall of the control shell 71, the threads on the two sides of the surface of the screw rod 74 are opposite, the front side between the two sides of the inner cavity of the adjusting shell 72 is fixedly connected with a sliding rod 8, the surface of the sliding rod 8 is slidingly connected with a sliding sleeve 9, the bottom of the sliding sleeve 9 is fixedly connected with the jacking rod 76, the two sides of the rotating shaft 773 are movably connected with the inner wall of the rotating frame 772, the shape of the extrusion frame 771 is C-shaped, the top of the two sides of the inner cavity of the extrusion frame 771 is provided with a slope, the two sides of the control shell 71 and the upper mold 1 are fixedly connected by bolts, the two sides of the front side of the control shell 71 are both provided with an opening cooperating with the locking mechanism 77, the two sides of the inner cavity of the control shell 71 are both fixedly connected with a sliding groove 10, the two sides of the extrusion frame 771 are both fixedly connected with a sliding strip 11.

[0031] Specifically: the fixed groove can facilitate the installation and placement of the movable block 5, the rotating shaft can facilitate the mold opening or mold closing of the upper mold 1 and the lower mold 2, the extrusion frame 771 can be inserted into the control shell 71 to lock the upper mold 1 and the lower mold 2, the rotating frame 772 can cooperate with the rotating shaft 773 to facilitate the extrusion frame 771 to change the use angle, the mounting plate 774 can facilitate the installation and fixation of the rotating shaft 773, the right side of the screw rod 74 movably connected with the inner wall of the control shell 71 can increase the stability during the rotation of the screw rod 74, the threads on the two sides of the screw rod 74 are opposite, which can control the two threaded sleeves 75 to move towards opposite sides or opposite sides at the same time, the sliding rod 8 and the sliding sleeve 9 can limit the jacking rod 76, preventing the jacking rod 76 from deforming and deviating when extruding the slope of the inner cavity of the extrusion frame 771, the bearing can increase the stability of the rotating frame 772 when rotating, the slope of the inner cavity of the extrusion frame 771 can cooperate with the jacking rod 76 to control the upper mold 1 and the lower mold 2 to tightly fit, the bolts can increase the stability of the connection between the control shell 71 and the upper mold 1, and also facilitate the disassembly and assembly of the control shell 71, the openings can facilitate the extrusion frame 771 to enter the inner cavity of the control shell 71, the sliding groove 10 and the sliding strip 11 can increase the stability of the extrusion frame 771 during the tightening process, preventing the extrusion frame 771 from deviating when being extruded by the jacking rod 76.

[0032] The working principle of the utility model is: the upper die 1 and the lower die 2 are closed, at this time the extrusion frame 771 enters the inner cavity of the control shell 71, then the motor 73 is started, the motor 73 cooperates with the screw rod 74 to control the threaded sleeve 75 and the ejector pin 76 to move, the ejector pin 76 moves to extrude the slope surfaces on both sides of the inner cavity of the extrusion frame 771, the extrusion frame 771 controls the upper die 1 and the lower die 2 to be closely attached to each other, the gap between the upper die 1 and the lower die 2 is avoided, the flash around the product is prevented, the upper die 1, the lower die 2 and the movable block 5 are cooperated during the opening die process, so that the product is not extruded when the die is opened, the production efficiency and the production quality of the product are improved.

[0033] The above disclosed preferred embodiments of the utility model are only used for helping to set forth the utility model, the preferred embodiments do not describe all the details, and also do not limit the utility model to only the specific implementation manners, the description selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model.

Claims

1. A backrest armrest frame position mold opening foam product extrusion-free structure, comprising an upper mold (1), characterized in that: The top of the upper die (1) is provided with a lower die (2), and the top of the upper die (1) and the front side of the lower die (2) are fixedly connected with a tensioning assembly (7); The left side of the front side of the lower die (2) is provided with an armrest die cavity (3), the left side of the front side of the upper die (1) is fixedly connected with an armrest fixed die (4), the bottom of the inner cavity of the armrest die cavity (3) is provided with a movable block (5), and the front side of the upper die (1) is provided with a backrest die cavity (6); The tensioning assembly (7) comprises a control shell (71), the rear side of the control shell (71) is fixedly connected with the upper die (1), the rear side of the inner cavity of the control shell (71) is fixedly connected with an adjusting shell (72), the right side of the inner cavity of the control shell (71) is fixedly connected with a motor (73), the left side of the output end of the motor (73) penetrates through the adjusting shell (72) and is fixedly connected with a screw rod (74), and the surfaces of the two sides of the screw rod (74) are threadedly connected with threaded sleeves (75). The top of the threaded sleeve (75) is fixedly connected with a top rod (76), and the opposite sides of the two top rods (76) penetrate into the inner cavity of the control shell (71). The top of the lower die (2) is fixedly connected with a locking mechanism (77).

2. The backrest armrest frame position mold-foam product squeeze-free structure of claim 1, wherein: The inner cavity of the armrest die cavity (3) and the rear side of the armrest fixed die (4) are both provided with a fixing groove matched with the movable block (5), and a rotating shaft is arranged between the lower die (2) and the upper die (1).

3. The backrest armrest frame position mold-foam product squeeze-free structure of claim 1, wherein: The locking mechanism (77) comprises a pressing frame (771), the rear side of the pressing frame (771) is fixedly connected with a rotating frame (772), the two sides of the inner cavity of the rotating frame (772) are movably connected with a rotating shaft (773), the rear side of the rotating shaft (773) is fixedly connected with a mounting plate (774), and the bottom of the mounting plate (774) is fixedly connected with the lower die (2).

4. The backrest armrest frame position mold-foam product squeeze-free structure of claim 1, wherein: The left side of the screw rod (74) is movably connected with the inner wall of the control shell (71), and the threads on the surfaces of the two sides of the screw rod (74) are opposite.

5. The backrest armrest frame position mold-foam product squeeze-free structure of claim 1, wherein: The front side between the two sides of the inner cavity of the adjusting shell (72) is fixedly connected with a sliding rod (8), the surface of the sliding rod (8) is slidingly connected with a sliding sleeve (9), and the bottom of the sliding sleeve (9) is fixedly connected with the top rod (76).

6. The backrest armrest frame position mold-foam product squeeze-free structure of claim 3, wherein: The two sides of the rotating shaft (773) and the inner wall of the rotating frame (772) are movably connected through bearings, the shape of the pressing frame (771) is C-shaped, and the top of the two sides of the inner cavity of the pressing frame (771) is provided with a slope.

7. The backrest armrest frame position mold-foam product squeeze-free structure of claim 1, wherein: The two sides of the control shell (71) and the upper die (1) are fixedly connected through bolts, and the two sides of the front side of the control shell (71) are both provided with an opening matched with the locking mechanism (77).

8. The backrest armrest frame position mold-foam product squeeze-free structure of claim 3, wherein: The two sides of the inner cavity of the control shell (71) are both fixedly connected with a sliding groove (10), and the two sides of the pressing frame (771) are both fixedly connected with a sliding strip (11).