Automatic demolding mold structure for automobile seat headrest

Abstract

The utility model relates to an automatic demolding mold structure for an automobile seat headrest. The technical problem that an existing back-off mold is poor in demolding effect is solved. One end of the insert is connected with an injection molding product piece, the other end of the insert is provided with a sliding block connected with the insert, the sliding block is connected with a sliding block driving mechanism, one end of the insert is provided with a plurality of extending pieces extending into the injection molding product piece, a plurality of pitched roof seats are arranged in the sliding block in a sliding mode, and pitched roof pieces are connected to the pitched roof seats respectively. One end of the pitched roof part is provided with a pitched roof head part which is movably arranged in the extension part in a penetrating manner and is matched with a back-off hole of the injection molding product part; and an elastic limiting structure which can abut against the pitched roof seat and the sliding block when the sliding block is driven by the sliding block driving mechanism to move towards the direction far away from the injection molding product part is arranged above the sliding block. The angle ejector seat has the advantages that the angle ejector seat can enable the angle ejector piece to contract relative to the sliding block through the elastic limiting structure and the angle ejector limiting assembly for forward ejection, so that the angle ejector head is separated from the back-off hole, the back-off demolding effect is guaranteed, and the back-off demolding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding demoulding equipment, and in particular relates to an automatic demoulding mold structure for a car seat headrest. Background Art

[0002] At present, the mold injection molding methods include injection molding, extrusion molding, blow molding, two-color molding and insert injection molding. Among them, injection molding has the advantages of high production efficiency, high product precision, high degree of automation and wide application range compared with other injection molding methods. In order to further improve the quality and precision of products, the existing injection molding has begun to adopt the mold undercut design, and the mold undercut design can improve production efficiency, reduce production costs and further expand the scope of application. However, the demolding efficiency of the existing injection molding undercut mold is low, and most of them adopt forced demolding, which may damage the product, affect the product yield, reduce the mold service life, increase production costs and affect production efficiency. Summary of the Invention

[0003] The purpose of the utility model is to provide an automatic demoulding mold structure for a car seat headrest in order to solve the above problems.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an automatic demolding mold structure for a car seat headrest, comprising an insert connected to an injection molded product at one end, a slider connected to the insert at the other end of the insert, the slider being connected to a slider driving mechanism, one end of the insert having a plurality of extensions extending into the injection molded product, a plurality of inclined ejectors slidingly provided in the slider, the inclined ejectors being respectively connected to the inclined ejectors, one end of the inclined ejectors having an inclined ejector head movably penetrated in the extension and matching the undercut hole of the injection molded product, an elastic limiting structure is provided above the slider, which can abut against the inclined ejector seat and the slider when the slider is driven by the slider driving mechanism to move in a direction away from the injection molded product, the elastic limiting structure can limit the inclined ejector seat when the slider drives the insert to contract and move through the slider driving mechanism, and the inclined ejector is ejected forward relative to the movement of the slider, so that the inclined ejector head can eject the undercut hole, thereby ensuring the demolding effect of the injection molded product and improving the demolding efficiency.

[0005] In the above-mentioned automatic demolding mold structure for the car seat headrest, the slider driving mechanism includes a driving cylinder arranged at the end of the slider away from the insert, and the cylinder rod of the driving cylinder is connected to the slider. The driving cylinder can control the cylinder rod to extend or contract, thereby driving the slider to extend or contract, which is convenient for demolding and mold closing and resetting.

[0006] In the above-mentioned automatic demolding mold structure for the car seat headrest, several groups of pressure strip groups are provided between the insert and the slider, and each pressure strip group includes two pressure strips arranged parallel to each other. The two ends of the pressure strips are respectively connected to the slider and the insert through mounting bolts. The insert and the slider can be fixedly connected through the pressure strip group, and the connection stability between the pressure strip group, the insert and the slider can be improved through the mounting bolts.

[0007] In the above-mentioned automatic demolding mold structure for the car seat headrest, the inclined top seat is slidably set in the sliding groove between the two pressure strips of each pressure strip group, and the lower end of the inclined top seat has an inclined top connecting seat connected to one end of the inclined top piece. The inclined top seat can be slidably set in the sliding groove through the sliding groove and can play a limiting and guiding role for the inclined top seat. The inclined top connecting seat can make one end of the inclined top piece fixedly set in the inclined top seat, and the inclined top seat can drive the inclined top piece to move synchronously.

[0008] In the above-mentioned automatic demolding mold structure for the car seat headrest, the elastic limiting structure includes a limiting block arranged above the slider, an elastic part is provided at the upper end of the limiting block, a slanted top limiting assembly is provided between the limiting block and the slanted top member, and a pressure strip limiting assembly is provided between the limiting block and the pressure strip. The limiting block can play a limiting role on the slanted top seat through the slanted top limiting assembly, and the limiting block can be fixedly set in the slanted top limiting assembly through the elastic part, so that the limiting block and the slanted top seat are displaced synchronously, and the limiting block and the slider can be displaced synchronously through the pressure strip limiting assembly to ensure the inverted demolding effect.

[0009] In the above-mentioned automatic demolding mold structure for the car seat headrest, the elastic parts are a plurality of pressure springs, and the pressure springs are respectively arranged against the upper end of the limit block. The pressure springs can ensure the pressure effect on the limit block and the pressure stability between the limit block and the inclined top seat.

[0010] In the above-mentioned automatic demolding mold structure for the car seat headrest, the inclined top limit assembly includes a limit groove arranged at the upper end of the inclined top seat, and the lower end of the limit block is arranged in the limit groove. The limit groove can be used to abut against the limit block and can limit the limit block, so that the limit block can drive the inclined top seat to move synchronously.

[0011] In the above-mentioned automatic demolding mold structure for the car seat headrest, the pressure strip limiting assembly includes a guide slope arranged on the upper side of one end of the pressure strip away from the limiting groove, and the lower end of the limiting block has a limiting slope matching the guide slope. The guide slope is suitable for the limiting slope, and when the guide slope is in abutment with the limiting slope, it can drive the limiting block and the inclined top seat to move synchronously.

[0012] In the above-mentioned automatic demolding mold structure for the car seat headrest, one end of the inclined top piece is provided with an inclined top extension portion extending toward the undercut hole, the inclined top head portion is arranged on the inclined top extension portion, the other end of the inclined top piece is extended at an angle, and the insert is provided with an inclined top guide hole for the inclined top piece to slide, and the inclined top guide hole can play a limiting and guiding role for the inclined top piece, the inclined top extension portion and the inclined top head portion are an integrated structure to ensure structural strength, and the inclined top piece is arranged at an angle in the inclined top guide hole, which can facilitate the inclined top head portion to disengage from the undercut hole to complete demolding when the inclined top piece is relatively ejected, thereby improving demolding efficiency.

[0013] In the above-mentioned automatic demoulding mold structure for the automobile seat headrest, the size of the inclined top guide hole is consistent with the size of the inclined top piece, and the size of the inclined top extension portion is larger than the size of the inclined top guide hole.

[0014] Compared with the existing technology, the advantages of this utility model are:

[0015] 1. The slider is fixedly connected to the insert through the pressure strip group and can be displaced and contracted synchronously through the slider driving mechanism. The inclined ejector seat can make the inclined ejector retract relative to the slider and eject it forward through the elastic limiting structure, so that the inclined ejector head is separated from the undercut hole, ensuring the undercut demoulding effect and improving the undercut demoulding efficiency.

[0016] 2. The pressure strip group can ensure the connection stability between the slider and the insert.

[0017] 3. The inclined top limiting assembly can improve the connection stability between the elastic limiting structure and the inclined top seat.

[0018] 4. The pressure strip limiting assembly can make the slider, elastic limiting structure and inclined top seat move synchronously to ensure demoulding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 It is a structural sectional view of the present utility model.

[0021] Figure 3 It is a partially enlarged structural diagram of the utility model.

[0022] Figure 4 It is a structural diagram of the insert in the utility model.

[0023] Figure 5 It is a structural diagram of the inclined ejector in the utility model.

[0024] Figure 6 It is a structural diagram of the elastic limiting structure in the utility model.

[0025] In the figure: injection molded product 1, undercut hole 11, insert 2, extension part 21, inclined top guide hole 22, slider 3, slider driving mechanism 4, driving cylinder 41, cylinder rod 42, inclined top seat 5, inclined top connecting seat 51, inclined top member 6, inclined top head 61, inclined top extension 62, elastic limiting structure 7, limiting block 71, elastic member 72, top pressure spring 721, pressure strip group 8, pressure strip 81, sliding groove 82, inclined top limiting assembly 9, limiting groove 91, pressure strip limiting assembly 10, guide slope 101, limiting slope 102. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0027] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, the automatic demoulding mold structure of the car seat headrest includes an insert 2 connected to an injection molded product part 1 at one end, a slider 3 connected to the insert 2 at the other end of the insert 2, and the slider 3 is connected to a slider driving mechanism 4. The slider driving mechanism 4 can drive the slider 3 and the insert 2 to slide synchronously. One end of the insert 2 has several extensions 21 extending into the injection molded product part 1, and several inclined ejector seats 5 are provided for sliding in the slider 3. The inclined ejector seats 5 are respectively connected to inclined ejector members 6. The inclined ejector seats 5 can facilitate the installation of the inclined ejector member 6 and can drive the inclined ejector member 6 to be ejected and reset to ensure the demoulding effect. One end of the inclined ejector member 6 It has a beveled ejector head 61 which is movably inserted into the extension part 21 and matches the undercut hole 11 of the injection molded product 1. Above the slider 3 is provided an elastic limiting structure 7 which can abut against the beveled ejector seat 5 and the slider 3 when the slider 3 moves in a direction away from the injection molded product 1 under the drive of the slider driving mechanism 4. The elastic limiting structure 7 can limit the beveled ejector seat 5 when the slider 3 drives the insert 2 to shrink and move through the slider driving mechanism 4, and the beveled ejector 6 moves forward relative to the slider 3, which can enable the beveled ejector head 61 to eject the undercut hole 11, thereby ensuring the demoulding effect of the injection molded product 1 and improving the demoulding efficiency.

[0028] Specifically, the slider driving mechanism 4 includes a driving cylinder 41 arranged at the end of the slider 3 away from the insert 2. The cylinder rod 42 of the driving cylinder 41 is connected to the slider 3. The driving cylinder 41 can control the cylinder rod 42 to extend or contract, thereby driving the slider 3 to extend or contract, which is convenient for demolding and mold closing and resetting.

[0029] Among them, several groups of pressure strip groups 8 are provided between the insert 2 and the slider 3, and each pressure strip group 8 includes two pressure strips 81 arranged parallel to each other. The two ends of the pressure strip 81 are respectively connected to the slider 3 and the insert 2 through mounting bolts. The pressure strip group 8 can fix the insert 2 and the slider 3, and the mounting bolts can improve the connection stability between the pressure strip group 8 and the insert and the slider 3.

[0030] like Figure 1 、 Figure 3 、 Figure 5 、 Figure 6 As shown, the inclined top seat 5 is slidably set in the sliding groove 82 between the two pressure bars 81 of each pressure bar group 8, and the lower end of the inclined top seat 5 has a inclined top connecting seat 51 connected to one end of the inclined top piece 6. The sliding groove 82 can make the inclined top seat 5 slidably set in the sliding groove 82 and can play a limiting and guiding role for the inclined top seat 5. The inclined top connecting seat 51 can make one end of the inclined top piece 6 fixedly set in the inclined top seat 5, and the inclined top seat 5 can drive the inclined top piece 6 to move synchronously.

[0031] Furthermore, the elastic limiting structure 7 includes a limiting block 71 arranged above the slider 3, an elastic member 72 is provided at the upper end of the limiting block 71, a slanted top limiting assembly 9 is provided between the limiting block 71 and the slanted top member 6, and a pressure strip limiting assembly 10 is provided between the limiting block 71 and the pressure strip 81. The limiting block 71 can limit the slanted top seat 5 through the slanted top limiting assembly 9, and the limiting block 71 can be fixed in the slanted top limiting assembly 9 through the elastic member 72, so that the limiting block 71 and the slanted top seat 5 are displaced synchronously, and the limiting block 71 can be displaced synchronously with the slider 3 through the pressure strip limiting assembly 10, thereby ensuring the undercut demoulding effect.

[0032] Among them, the elastic part 72 is a plurality of pressure springs 721, and the pressure springs 721 are respectively set against the upper end of the limit block 71. The pressure springs 721 can ensure the pressure effect on the limit block 71 and ensure the pressure stability between the limit block 71 and the inclined top seat 5.

[0033] Combine Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 As shown, the inclined top limit assembly 9 includes a limit groove 91 arranged at the upper end of the inclined top seat 5, and the lower end of the limit block 71 is arranged in the limit groove 91. The limit groove 91 can be used to abut against the limit block 71 and can limit the limit block 71, so that the limit block 71 can drive the inclined top seat 5 to move synchronously.

[0034] Among them, the pressure strip limiting assembly 10 includes a guide slope 101 arranged on the upper side of the end of the pressure strip 81 away from the limiting groove 91, and the lower end of the limiting block 71 has a limiting slope 102 matching the guide slope 101. The guide slope 101 is suitable for the limiting slope 102, and when the guide slope 101 is against the limiting slope 102, it can drive the limiting block 71 and the inclined top seat 5 to move synchronously.

[0035] Specifically, one end of the inclined top piece 6 is provided with an inclined top extension portion 62 extending toward the undercut hole 11, and the inclined top head portion 61 is provided on the inclined top extension portion 62. The other end of the inclined top piece 6 is extended at an angle, and an inclined top guide hole 22 for sliding the inclined top piece 6 is provided in the insert 2. The inclined top guide hole 22 can play a limiting and guiding role for the inclined top piece 6. The inclined top extension portion 62 and the inclined top head portion 61 are an integrated structure to ensure structural strength, and the inclined top piece 6 is inclinedly set in the inclined top guide hole 22, which can facilitate the inclined top head portion 61 to separate from the undercut hole 11 to complete demolding when the inclined top piece 6 is relatively ejected, thereby improving the demolding efficiency.

[0036] Combine Figure 4 As shown, the size of the inclined top guide hole 22 is consistent with the size of the inclined top piece 6, and the size of the inclined top extension 62 is larger than the size of the inclined top guide hole 22, and when the slider 3 drives the insert 2 to close the mold, the inclined top piece 6 is reset in the inclined top guide hole 22 under the relative movement of the slider 3, and when the inclined top extension 62 is against the insert 2.

[0037] The principle of this embodiment is that when the injection molded product 1 is demoulded, the slider 3 can drive the insert 2 to shrink synchronously through the slider driving mechanism 4 and the pressure strip group 8, wherein the limit block 71 is arranged in the inclined top limit assembly 9 and the elastic member 72 can enable the limit block 71 to press the inclined top seat 5, so that the inclined top seat 5 can be ejected forward relative to the slider 3, so that the inclined top head 61 of the inclined top piece 6 is separated from the undercut hole 11, the slider 3 continues to shrink, and when the guide bevel 101 abuts against the limit bevel 102, the slider 3 drives the limit block 71 and the inclined top seat 5 to shrink synchronously to complete the demoulding.

[0038] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0039] Although this article frequently uses terms such as injection molded product 1, undercut hole 11, insert 2, extension 21, inclined top guide hole 22, slider 3, slider drive mechanism 4, drive cylinder 41, cylinder rod 42, inclined top seat 5, inclined top connecting seat 51, inclined top member 6, inclined top head 61, inclined top extension 62, elastic limiting structure 7, limiting block 71, elastic member 72, top pressure spring 721, pressure strip assembly 8, pressure strip 81, sliding groove 82, inclined top limiting assembly 9, limiting groove 91, pressure strip limiting assembly 10, guide slope 101, limiting slope 102, etc., the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An automatic demoulding mold structure for a car seat headrest, comprising an insert (2) connected to an injection molded product (1) at one end, a slider (3) connected to the insert (2) at the other end, the slider (3) connected to the insert (2), a slider drive mechanism (4) connected to the slider, and a plurality of extensions (21) extending into the injection molded product (1) at one end of the insert (2), characterized in that: A plurality of inclined top seats (5) are slidably provided in the slider (3), and inclined top members (6) are respectively connected to the inclined top seats (5). One end of the inclined top member (6) has an inclined top head (61) which is movably provided in the extension member (21) and matches the undercut hole (11) of the injection molded product (1). An elastic limiting structure (7) is provided above the slider (3) and can abut against the inclined top seat (5) and the slider (3) when the slider (3) is driven by the slider driving mechanism (4) to move in a direction away from the injection molded product (1).

2. The automatic demoulding mold structure for the automobile seat headrest according to claim 1, characterized in that: The slider driving mechanism (4) comprises a driving oil cylinder (41) arranged at one end of the slider (3) away from the insert (2), and the cylinder rod (42) of the driving oil cylinder (41) is connected to the slider (3).

3. The automatic demoulding mold structure for the automobile seat headrest according to claim 1 or 2, characterized in that: A plurality of pressure strip groups (8) are provided between the insert (2) and the slider (3), each pressure strip group (8) comprises two pressure strips (81) arranged parallel to each other, and the two ends of the pressure strips (81) are connected to the slider (3) and the insert (2) respectively by mounting bolts.

4. The automatic demoulding mold structure for the automobile seat headrest according to claim 3, characterized in that: The inclined top seat (5) is slidably arranged in a sliding groove (82) between two pressure strips (81) of each pressure strip group (8), and the lower end of the inclined top seat (5) has an inclined top connecting seat (51) connected to one end of the inclined top member (6).

5. The automatic demoulding mold structure for the automobile seat headrest according to claim 4, characterized in that: The elastic limiting structure (7) comprises a limiting block (71) arranged above the slider (3); an elastic member (72) is provided at the upper end of the limiting block (71); a tilting top limiting assembly (9) is provided between the limiting block (71) and the tilting top member (6); and a pressure strip limiting assembly (10) is provided between the limiting block (71) and the pressure strip (81).

6. The automatic demoulding mold structure for the automobile seat headrest according to claim 5, characterized in that: The elastic member (72) is a plurality of pressure springs (721), and the pressure springs (721) are respectively arranged to press against the upper end of the limit block (71).

7. The automatic demoulding mold structure for the automobile seat headrest according to claim 5, characterized in that: The inclined top limiting assembly (9) comprises a limiting groove (91) arranged at the upper end of the inclined top seat (5), and the lower end of the limiting block (71) is arranged in the limiting groove (91).

8. The automatic demoulding mold structure for the automobile seat headrest according to claim 7, characterized in that: The pressure strip limiting assembly (10) includes a guide slope (101) arranged on the upper side of one end of the pressure strip (81) away from the limiting groove (91), and the lower end of the limiting block (71) has a limiting slope (102) matching the guide slope (101).

9. The automatic demoulding mold structure for a car seat headrest according to claim 1, characterized in that: One end of the inclined top piece (6) is provided with an inclined top extension portion (62) extending toward the undercut hole (11), the inclined top head portion (61) is provided on the inclined top extension portion (62), the other end of the inclined top piece (6) is extended obliquely, and the insert (2) is provided with an inclined top guide hole (22) for the inclined top piece (6) to slide.

10. The automatic demoulding mold structure for the automobile seat headrest according to claim 9, characterized in that: The size of the inclined top guide hole (22) is consistent with the size of the inclined top member (6), and the size of the inclined top extension portion (62) is larger than the size of the inclined top guide hole (22).

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