A headrest foaming mold for preventing headrest rod from overflowing

Abstract

A headrest foaming mold for preventing overflow of headrest rods can solve the technical problem that the headrest rods have overflow and affect the quality when the existing foaming molds are used to produce automobile seat headrests. It includes a lower mold structure with a foaming inner cavity in the shape of a headrest, and the upper mold structure is used to process the headrest foam product; a headrest guide rod inlet is provided on the foaming inner cavity; a guide sleeve with an inner diameter gradually decreasing from the outside to the inside is provided on the headrest guide rod inlet; the headrest guide rod guide sleeve extends into the foaming inner cavity; the outside of the headrest guide rod is wrapped with a nylon sealing sleeve, and when the nylon sealing sleeve moves in the guide sleeve toward the lower mold structure, it will be gradually squeezed inward by the inclined surface of the guide sleeve, and the inner diameter will be reduced to a state of tightly wrapping the headrest guide rod. The present invention can ensure that the headrest rod will not produce the quality problem of overflow when the automobile seat headrest is produced by the foaming mold, so that the surface of the produced automobile seat headrest foam headrest rod is smooth and clean, and no secondary processing is required, thereby improving product quality and production efficiency and reducing product costs.

Description

Technical Field

[0001] The invention relates to the technical field of headrest foaming, and in particular to a headrest foaming mould for preventing material overflow from a headrest rod. Background Art

[0002] In the process of producing headrest foam in the headrest foaming mold to prevent the headrest rod from overflowing, the commonly used method is to wrap a layer of felt on the headrest rod and clean it after foaming, or use two semicircular rubber pads for sealing. There is also a lot of overflow after foaming, which requires secondary post-processing. Due to the existence of secondary processing, the headrest rod is scratched and the time cost increases, affecting product quality and efficiency. Summary of the invention

[0003] The invention provides a headrest foaming mould for preventing material overflow on a headrest rod, which can solve the technical problem that when an existing foaming mould is used to produce a car seat headrest, material overflow occurs on the headrest rod, affecting the quality.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A headrest foaming mold for preventing overflow of a headrest rod comprises an upper mold structure and a lower mold structure, wherein the upper mold structure is arranged at the upper part, and the lower mold structure is arranged at the lower part corresponding to the upper mold structure, wherein the lower mold structure comprises a foaming inner cavity with a headrest shape, and the upper mold structure comprises a foaming inner cavity upper cover adapted to the foaming inner cavity, wherein the upper mold structure and the lower mold structure work in a face-to-face collision cooperation; a headrest guide rod inlet is arranged on the foaming inner cavity;

[0006] It also includes a guide sleeve, which is arranged on the inlet of the headrest guide rod, the guide sleeve is connected to the inlet of the headrest guide rod, and the inner diameter of the guide sleeve gradually decreases from the outside toward the inlet of the headrest rod;

[0007] One end of the headrest guide rod passes through the guide sleeve and extends into the foaming inner cavity;

[0008] It also includes a nylon sealing sleeve, which is wrapped around the outside of the headrest guide rod. When the nylon sealing sleeve moves toward the lower mold structure in the guide sleeve, the nylon sealing sleeve will be gradually squeezed inward by the inclined surface of the guide sleeve, reducing the inner diameter to achieve a state of tightly wrapping the headrest guide rod.

[0009] Furthermore, it also includes a cylinder, the piston of which is fixed on the upper mold structure, and the cylinder body of which is the moving end;

[0010] It also includes a cylinder connecting plate, which is fixed on the cylinder body of the cylinder;

[0011] It also includes a nylon sealing sleeve fixing block, which is fixed on the cylinder connecting plate;

[0012] The nylon sealing sleeve is fixed on the nylon sealing sleeve fixing block;

[0013] The cylinder connecting plate and the nylon sealing sleeve fixing block are respectively provided with through holes for passing the headrest guide rod;

[0014] The cylinder body of the air cylinder reciprocates, thereby driving the cylinder connecting plate, the nylon sealing sleeve fixing block and the nylon sealing sleeve to reciprocate up and down.

[0015] Furthermore, it also includes a headrest guide rod fixing seat, which is an open box-shaped structure. The headrest guide rod fixing seat is fixed to the upper mold structure, and the top end of the headrest guide rod is fixed in the headrest guide rod fixing seat.

[0016] Furthermore, when the cylinder body of the air cylinder is in an extended state, the nylon sealing sleeve is in a retracted state, and the inner diameter of the nylon sealing sleeve is of a normal size, so that the headrest guide rod is normally inserted into the guide sleeve, and then positioned in the up and down directions by the positioning pins and positioned in the front and back directions by the magnetic fixing block to prevent falling;

[0017] The positioning pin is placed and fixed in the headrest guide rod fixing seat;

[0018] The magnetic fixing block is fixed on the upper mold structure and is used for adsorbing the headrest guide rod.

[0019] Furthermore, it also includes a U-shaped groove fixing block, which is a support with a U-shaped groove. The U-shaped groove fixing block is fixed on the upper mold structure, and the magnetic fixing block is fixed in the groove of the U-shaped groove fixing block.

[0020] Furthermore, it also includes a positioning pin and a limit screw, which is a screw structure; the limit screw is inserted into the headrest guide rod fixing seat from the outside through a threaded connection and is fixed on the headrest guide rod fixing seat, and the positioning pin is fixed to the inner end of the limit screw. By adjusting the outer end of the limit screw, the positioning pin can be driven to move up and down, thereby adjusting the position.

[0021] Furthermore, it also includes a support fixing frame, which is a steel square strip block. The support fixing frame is fixed together with the headrest guide rod fixing seat to limit and support the headrest guide rod.

[0022] Furthermore, the upper mold structure and the lower mold structure are respectively arranged in the shell.

[0023] Furthermore, the interior of the guide sleeve is a stepped flange part with a conical lower portion.

[0024] Furthermore, the nylon sealing sleeve is a circular sleeve-shaped part made of nylon material, and a fixing hole is arranged on the outside thereof, and is connected to the nylon sealing sleeve fixing block by bolts through the fixing hole.

[0025] It can be seen from the above technical scheme that the headrest rod anti-overflow headrest foaming mold of the present invention can ensure that the headrest rod will not have the quality problem of overflow when the car seat headrest is produced by the foaming mold, so that the surface of the produced car seat headrest foam headrest rod is smooth and meets the product quality requirements, and no secondary processing is required, thereby improving product quality and production efficiency and reducing product costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 The internal structure of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 3 The internal structure of the present invention is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0030] like Figure 1-Figure 3 As shown, the headrest foaming mold for preventing the headrest rod from overflowing described in this embodiment includes:

[0031] It includes an upper mold structure 4 and a lower mold structure 15, wherein the upper mold structure 4 is arranged at the upper part, and the lower mold structure 15 is arranged at the lower part corresponding to the upper mold structure 4, wherein the lower mold structure 15 includes a foaming inner cavity with a headrest shape, and the upper mold structure 4 includes a foaming inner cavity upper cover adapted to the foaming inner cavity, and the upper mold structure 4 and the lower mold structure 15 work by face-to-face collision cooperation; a headrest guide rod entrance is arranged on the foaming inner cavity;

[0032] It also includes a guide sleeve 3, which is arranged on the inlet of the headrest guide rod, the guide sleeve 3 is connected to the inlet of the headrest guide rod, and the inner diameter of the guide sleeve 3 gradually decreases from the outside toward the inlet of the headrest rod;

[0033] One end of the headrest guide rod 9 passes through the guide sleeve 3 and extends into the foaming cavity;

[0034] It also includes a nylon sealing sleeve 2, which is wrapped around the outside of the headrest guide rod 9. When the nylon sealing sleeve 2 moves toward the lower mold structure 15 in the guide sleeve 3, the nylon sealing sleeve 2 will be gradually squeezed inward by the inclined surface of the guide sleeve 3, and the inner diameter will be reduced to reach a state of tightly wrapping the headrest guide rod 9.

[0035] It also includes a cylinder 1, the piston of the cylinder 1 is fixed on the upper mold structure 4, and the cylinder body of the cylinder 1 is the moving end;

[0036] It also includes a cylinder connecting plate 6, which is fixed on the cylinder body of the cylinder 1;

[0037] It also includes a nylon sealing sleeve fixing block 5, wherein the nylon sealing sleeve fixing block 5 is fixed on the cylinder connecting plate 6;

[0038] The nylon sealing sleeve 2 is fixed on the nylon sealing sleeve fixing block 5;

[0039] The cylinder connecting plate 6 and the nylon sealing sleeve fixing block 5 are respectively provided with through holes for passing the headrest guide rod 9;

[0040] The cylinder body of the cylinder 1 reciprocates, driving the cylinder connecting plate 6, the nylon sealing sleeve fixing block 5 and the nylon sealing sleeve 2 to reciprocate up and down.

[0041] Specifically:

[0042] The upper mold structure 4 is a rectangular mold with a headrest shape and fixed with related components; the lower mold structure 15 is a rectangular mold with a headrest shape and fixed with related components, and together with the upper mold of the headrest mold, a headrest foam product is processed.

[0043] The upper mold structure 4 and the lower mold structure 15 are respectively arranged in a cast aluminum shell with a thickness of 10 mm;

[0044] The cylinder 1 is a rectangular body with a piston rod in the middle and air inlet and outlet passages on the outside. The piston rod is fixed to the upper mold structure 4, and the cylinder body is connected to the cylinder connecting plate 6 for movement.

[0045] The nylon sealing sleeve 2 is a circular sleeve-shaped part made of nylon material with a fixing hole thereon, and is connected to the nylon sealing sleeve fixing block 5 by bolts through the fixing hole thereon.

[0046] The guide sleeve 3 has a fixing hole thereon and a stepped flange part inside, which is connected and fixed to the mold by bolts, supports the nylon sealing sleeve 2 to move along it, and plays a role in movement guidance and positioning.

[0047] The nylon sealing sleeve fixing block 5 is a stepped cylinder, the middle circular hole of which is used to pass the headrest rod 9 and cooperate with the nylon sealing sleeve 2, the bolt holes on the side surface of the nylon sealing sleeve 2 are used to fix the nylon sealing sleeve 2, and the bolt holes on the upper end surface of the nylon sealing sleeve are used to fix the cylinder connecting plate 6.

[0048] The cylinder connecting plate 6 is an elliptical plate-shaped part with two round holes for passing the headrest rod 9 and cooperating with the nylon sealing sleeve fixing block 5, and the bolt holes thereon are used to fix the nylon sealing sleeve fixing block 5;

[0049] The headrest guide rod 9 is a cylindrical tubular part and is part of the headrest product;

[0050] It also includes a headrest guide rod fixing seat 12, which is an open box-shaped structure. The headrest guide rod fixing seat 12 is fixed to the upper mold structure 4, and the top of the headrest guide rod 9 is fixed in the headrest guide rod fixing seat 12. The headrest guide rod fixing seat 12 is an open box-shaped structure, welded with the support fixing frame 14, and fixed to the upper mold of the headrest mold by fixing bolts 13.

[0051] The support fixing frame 14, a steel square strip block and a headrest guide rod fixing seat are welded together to limit and support the headrest guide rod.

[0052] When the cylinder body of the air cylinder 1 is in the extended state, the nylon sealing sleeve 2 is in the retracted state, and the inner diameter of the nylon sealing sleeve 2 is of normal size, so that the headrest guide rod 9 is normally inserted into the guide sleeve 3, and then positioned in the up and down directions by the positioning pins 10 and sucked by the magnetic fixing block 8 to position it front and back and prevent it from falling; the positioning pins 10 are placed and fixed in the headrest guide rod fixing seat 12; the magnetic fixing block 8 is fixed on the upper mold structure 4 to absorb the headrest guide rod 9.

[0053] It also includes a positioning pin and a limit screw 11, which is a screw structure; the limit screw 11 is inserted into the headrest guide rod fixing seat 12 from the outside through a threaded connection and is fixed on the headrest guide rod fixing seat 12, and the positioning pin 10 is fixed to the inner end of the limit screw 11. By adjusting the outer end of the limit screw 11, the positioning pin 10 can be driven to move up and down, thereby adjusting the position.

[0054] It also includes a U-shaped groove fixing block 7, which is a support with a U-shaped groove. The U-shaped groove fixing block 7 is fixed on the upper mold structure 4, and the magnetic fixing block 8 is fixed in the groove of the U-shaped groove fixing block 7.

[0055] The specific principle is that the piston of the cylinder 1 is fixed to the upper mold 14 of the headrest mold (in a fixed state), and the cylinder body of the cylinder 1 (in a movable state). When the cylinder body of the cylinder 1 is in an extended state, the nylon sealing sleeve 2 is in a retracted state, and its inner diameter is a normal size, so that the headrest guide rod 9 can be normally inserted into the guide sleeve, and then positioned in the up and down directions by the positioning pins 10 and the front and rear positioning is sucked by the magnetic fixing block 8 to prevent falling.

[0056] Before the mold is poured with chemical material, the cylinder connecting plate 6, the nylon sealing sleeve fixing block 5 and the nylon sealing sleeve 2 are driven to perform a downward pressing movement through the cylinder body retraction action of the cylinder 1. When the nylon sealing sleeve 2 moves to the top, it will be squeezed inward by the inclined surface of the guide sleeve 3, and the inner diameter will be reduced to reach a state of tightly wrapping the headrest guide rod 9. In this way, the chemical material will not overflow through the gap around the headrest guide rod 9 when pouring the chemical material, thereby avoiding product defects.

[0057] When taking the product, the cylinder body of the cylinder 1 will give a signal through the production line to achieve the extended state, driving the cylinder connecting plate 6, the nylon sealing sleeve fixing block 5, and the nylon sealing sleeve 2 to do an upward movement, so that the nylon sealing sleeve 2 and the headrest rod 9 will be separated (0.5mm gap), and then the product can be taken out normally.

[0058] The headrest rod anti-overflow headrest foaming mold described in this embodiment can ensure that the headrest rod will not produce quality problems such as overflow when the car seat headrest is produced using the foaming mold, thereby improving product quality and production efficiency and reducing product costs.

[0059] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A headrest foaming mold for preventing overflow of a headrest rod, comprising an upper mold structure (4) and a lower mold structure (15), wherein the upper mold structure (4) is arranged at the upper part, and the lower mold structure (15) is arranged at the lower part corresponding to the upper mold structure (4), wherein the lower mold structure (15) comprises a foaming inner cavity with a headrest shape, wherein the upper mold structure (4) comprises a foaming inner cavity upper cover adapted to the foaming inner cavity, wherein the upper mold structure (4) and the lower mold structure (15) work in a face-to-face collision cooperation manner; and a headrest guide rod inlet is arranged on the foaming inner cavity; Features: It also includes a guide sleeve (3), the guide sleeve (3) is arranged on the inlet of the headrest guide rod, the guide sleeve (3) is connected to the inlet of the headrest guide rod, and the inner diameter of the guide sleeve (3) gradually decreases from the outside toward the inlet of the headrest guide rod; One end of the headrest guide rod (9) passes through the interior of the guide sleeve (3) and extends into the foaming inner cavity; It also includes a nylon sealing sleeve (2), wherein the nylon sealing sleeve (2) is wrapped around the outside of the headrest guide rod (9), and when the nylon sealing sleeve (2) moves in the guide sleeve (3) toward the lower mold structure (15), the nylon sealing sleeve (2) is gradually squeezed inward by the inclined surface of the guide sleeve (3), and the inner diameter is reduced to achieve a state of tightly wrapping the headrest guide rod (9); It also comprises a cylinder (1), the piston of the cylinder (1) is fixed on the upper mold structure (4), and the cylinder body of the cylinder (1) is the moving end; It also includes a cylinder connecting plate (6), which is fixed on the cylinder body of the cylinder (1); It also includes a nylon sealing sleeve fixing block (5), wherein the nylon sealing sleeve fixing block (5) is fixed on the cylinder connecting plate (6); The nylon sealing sleeve (2) is fixed on the nylon sealing sleeve fixing block (5); The cylinder connecting plate (6) and the nylon sealing sleeve fixing block (5) are respectively provided with corresponding through holes for passing the headrest guide rod (9); The cylinder (1) reciprocates, driving the cylinder connecting plate (6), the nylon sealing sleeve fixing block (5) and the nylon sealing sleeve (2) to reciprocate up and down; The upper mold structure (4) and the lower mold structure (15) are respectively arranged in the shell.

2. The headrest foaming mold for preventing overflow of headrest rod according to claim 1, characterized in that: It also includes a headrest guide rod fixing seat (12), which is an open box-shaped structure. The headrest guide rod fixing seat (12) is fixed to the upper mold structure (4), and the top end of the headrest guide rod (9) is fixed in the headrest guide rod fixing seat (12).

3. The headrest foaming mold for preventing overflow of headrest rod according to claim 2, characterized in that: When the cylinder body of the air cylinder (1) is in an extended state, the nylon sealing sleeve (2) is in a retracted state, and the inner diameter of the nylon sealing sleeve (2) is of a normal size, so that the headrest guide rod (9) is normally inserted into the guide sleeve (3), and then positioned in the up and down directions by the positioning pins (10) and the front and rear positioning is sucked by the magnetic fixing block (8) to prevent it from falling; The positioning pin (10) is placed and fixed in the headrest guide rod fixing seat (12); The magnetic fixing block (8) is fixed on the upper mold structure (4) and is used to absorb the headrest guide rod (9).

4. The headrest foaming mold for preventing overflow of the headrest rod according to claim 3, characterized in that: It also includes a U-shaped groove fixing block (7), which is a support with a U-shaped groove. The U-shaped groove fixing block (7) is fixed on the upper mold structure (4), and the magnetic fixing block (8) is fixed in the groove of the U-shaped groove fixing block (7).

5. The headrest foaming mold for preventing overflow of headrest rod according to claim 4, characterized in that: It also includes a positioning nail and a limiting screw (11), which is a screw structure; The limiting screw (11) penetrates into the headrest guide rod fixing seat (12) through a threaded connection from the outside and is fixed on the headrest guide rod fixing seat (12). The positioning pin (10) is fixed on the inner end of the limiting screw (11). By adjusting the outer end of the limiting screw (11), the positioning pin (10) can be driven to move up and down, thereby adjusting the position.

6. The headrest foaming mold for preventing overflow of headrest rod according to claim 2, characterized in that: It also includes a support fixing frame (14), which is a steel square strip block. The support fixing frame (14) is fixed together with the headrest guide rod fixing seat (12) and is used to limit and support the headrest guide rod (9).

7. The headrest foaming mold for preventing overflow of headrest rod according to claim 1, characterized in that: The interior of the guide sleeve (3) is a stepped flange component with a conical lower portion.

8. The headrest foaming mold for preventing overflow of headrest rod according to claim 1, characterized in that: The nylon sealing sleeve (2) is a circular sleeve-shaped part made of nylon material, and a fixing hole is arranged on the outside thereof, and is connected to the nylon sealing sleeve fixing block (5) by bolts through the fixing hole.

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