Preassembled positioning injection mold based on production and manufacturing of automotive upholstery

Abstract

The invention relates to the technical field of automobile part production, in particular to a preassembled positioning injection mold based on automobile interior trim part production and manufacturing, which comprises an operation frame with an S-shaped structure, frame grooves with rectangular structures are formed in the upper, middle and lower ends in the operation frame, and an upper mold body and a lower mold body are respectively arranged on the upper and lower inner walls of the frame groove in the middle section of the operation frame; guide rods are fixedly installed at the centers of the ends, away from each other, of the upper mold body and the lower mold body, a dynamic pressing mechanism is arranged between the upper guide rod and the lower guide rod, and a post-processing mechanism is arranged on the inner wall of a middle-section frame groove of the operation frame and located on one side of the upper mold body and the lower mold body; through cooperation of the positioning structure, the dual-drive dynamic pressing structure and the post-processing auxiliary mechanism, the problems that a traditional interior trim part injection mold is uneven in distribution, slow in cooling and adhesion in demolding are solved, and the integrated production effect of high-precision positioning, efficient forming and low defect rate is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile accessory production, in particular to a pre-positioning injection mold for producing and manufacturing automobile interior accessories. BACKGROUND

[0002] As a core component of the automobile interior space, the assembly precision, surface quality and production efficiency of the automobile interior accessory directly affect the interior appearance and user experience of the whole vehicle. With the development of the automobile industry towards intelligence and light weight, the design complexity of the interior accessory (such as the instrument panel, door panel and central channel) is significantly improved, often involving multi-curved surface, thin wall, insert and soft composite material, which puts higher requirements on the production process. While ensuring high-precision positioning, efficient batch production is realized, and the defect rate caused by uneven material distribution, cooling deformation or demolding adhesion is reduced.

[0003] For example, the injection mold for producing automobile interior accessories disclosed in patent No. CN208052467U adjusts the position of the mold plate through a hydraulic rod to change the thickness of the cavity. However, it is worth noting that this device is still similar to the traditional injection mold, and the injection process still relies on the traditional pouring method, which fails to solve the problem of uneven material distribution caused by flow resistance in large-size interior accessories.

[0004] In addition, the mold plate in this device only provides ejection force through a return spring, which fails to solve the problem of product deformation or demolding adhesion caused by uneven cooling, increasing the risk of defects in finished interior accessories. Therefore, a solution is proposed. SUMMARY

[0005] The purpose of the present application is to solve the problems of uneven distribution, slow cooling and demolding adhesion in traditional interior accessory injection molds through the cooperative action of the positioning structure, double-drive dynamic compression structure and post-processing auxiliary mechanism, and to realize the integrated production effect of high-precision positioning, efficient molding and low defect rate.

[0006] The purpose of the present application can be achieved by the following technical solution: a pre-positioning injection mold for producing and manufacturing automobile interior accessories, comprising an S-shaped operation frame, and a rectangular frame groove is arranged at the upper, middle and lower ends inside the operation frame. An upper die body and a lower die body are arranged at the upper and lower inner walls of the middle frame groove of the operation frame, respectively. A guide rod is fixedly installed at the center of the end of the upper die body and the lower die body away from each other. A dynamic compression mechanism is arranged between the two guide rods. A post-processing mechanism is arranged on the inner wall of the middle frame groove of the operation frame and located at one side of the upper die body and the lower die body.

[0007] The guide rod located at the top of the upper die body is in a hollow structure and is communicated with the material guide hole in the upper die body. The inner vertical guide liquid pipe is arranged in the guide rod. The top of the guide liquid pipe is provided with a spiral extrusion rod. The side of the guide liquid pipe is provided with a hot melting frame.

[0008] Further, the two groups of guide rods extend to the upper and lower frame grooves of the operation frame from the ends away from the upper die body and the lower die body. The limit gear is fixedly installed on the outside of the guide rod near the top end. The guide rod is fixedly sleeved with two groups of chucks at the end away from the limit gear.

[0009] Further, the dynamic pressing mechanism includes a double-shaft motor one arranged at the inner wall of the middle frame groove of the operation frame. The double-shaft motor one is fixedly installed with a reverse threaded spiral rotating rod on the upper and lower output shafts. The outer part of the two groups of spiral rotating rods is respectively spirally sleeved with a sliding frame.

[0010] The sliding frame is slidingly connected in the vertical groove arranged on the inner side wall of the operation frame. The other end of the sliding frame is hingedly connected with an H-shaped frame lifting. The middle part of the two groups of H-shaped frame lifting is hingedly connected through the concave clamping frame fixedly installed on the upper and lower inner walls of the middle frame groove of the operation frame. The end of the two groups of H-shaped frame lifting away from the sliding frame is clamped on the outer part of the corresponding guide rod and located between the adjacent two groups of chucks.

[0011] Further, the dynamic pressing mechanism further includes a double-shaft motor two arranged at the center of one side of the operation frame. The upper and lower shaft rods of the double-shaft motor two are respectively fixedly installed with main transmission wheels. The adjacent main transmission wheels are rotatably arranged with slave transmission wheels at the inner walls of the upper and lower frame grooves of the operation frame. The main transmission wheels and the corresponding slave transmission wheels are jointly sleeved with a transmission belt. The bottom shaft of each group of slave transmission wheels is fixedly installed with a limit tooth roller.

[0012] Further, each group of limit tooth rollers is meshed with the adjacent limit gear. The end of each group of slave transmission wheels away from the limit tooth roller is fixedly sleeved with a rotating disc. The outer part of the rotating disc is equidistantly hingedly connected with a plurality of groups of abutting pieces.

[0013] Further, the post-processing mechanism includes a positioning frame one fixedly installed at the opening of the middle frame groove of the operation frame. The positioning frame one is movably arranged near the opening of the middle frame groove. The positioning frame two is arranged near the center of the side of the positioning frame one. The positioning frame two is fixedly connected with the push rod end arranged at the output end of the air cylinder.

[0014] The inner part of the positioning frame one and the positioning frame two is provided with a rectangular clamping groove at the upper and lower ends. The inner walls of the two groups of rectangular clamping grooves of the positioning frame one are respectively hingedly connected with abutting frames. The two groups of abutting frames are mirror-symmetrically arranged relative to the center axis of the positioning frame one.

[0015] Further, one end of the resistance frame extends to the outside of the rectangular clamping groove and is embedded with a resistance roller, and the two groups of resistance rollers are located at the adjacent positions of the upper die body and the lower die body respectively, and the other end of the resistance frame penetrates into the rectangular clamping groove in the inside of the positioning frame two, and the front and rear inner walls of the resistance frame are provided with inclined grooves away from the end of the resistance roller, and the front and rear inner walls of the rectangular clamping groove of the positioning frame two are provided with sliding shafts, and each group of sliding shafts are slidingly connected in the corresponding inclined grooves.

[0016] Further, the air cylinder is fixedly and penetratingly arranged in the inside of the positioning frame one and located at the upper and lower ends of the air cylinder, and one end of the air cylinder extends to the outside of the positioning frame one and is located at the same side as the resistance roller, and the inside of each group of air cylinders is penetratingly provided with a push plug rod, and one end of the push plug rod is fixedly connected with the side wall of the positioning frame two.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] 1. The present application is provided with an upper die body, a lower die body and a dynamic pressing mechanism, a double-shaft motor drives a reverse thread screw rotating rod to move the sliding frame up and down, a H-shaped frame lifting mechanism is swung to drive the chuck to contract radially, so that the upper and lower die bodies are quickly attached, then a double-shaft motor drives the main transmission wheel, the driven wheel, the limiting tooth roller and the limiting gear to rotate, and drives the upper and lower die bodies to rotate synchronously, the centrifugal force makes the hot melt glue in the mold cavity evenly distributed, avoiding local accumulation or lack of material, solving the defects of shrinkage, bubbles and other defects caused by uneven flow in traditional injection molding;

[0019] 2. The present application is also provided with a post-processing mechanism, which realizes knocking, cooling, anti-sticking and auxiliary demolding through the linkage of air cylinder, connecting rod and inclined groove and gas blowing;

[0020] Intermittent knocking cooling: the air cylinder drives the positioning frame two to move, the resistance frame drives the resistance roller to swing up and down through the inclined surface cooperation of the inclined groove and the sliding shaft, and intermittently knocks the surface of the upper and lower die bodies; the knocking force promotes the heat transfer between the mold and the product, accelerates the solidification, and avoids the material adhesion caused by long time contact;

[0021] Gas-assisted cleaning and cooling: when the positioning frame two moves, the push plug rod reciprocates in the air cylinder and pressurizes the external gas into the mold compression joint, the gas diffuses with the rotation of the mold, which assists in removing the surface residual particles and improves the cleanliness of the product. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to facilitate the understanding of those skilled in the art, the present application will be further described below with reference to the drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0024] Figure 2It is the plane schematic view of the whole structure of the application;

[0025] Figure 3 It is the half cutaway schematic view of the guide rod, the liquid guide pipe, the spiral extrusion rod and the hot melting frame combined in the application;

[0026] Figure 4 It is the three-dimensional schematic view of the local structure of the operation frame combined with the dynamic pressing mechanism in the application;

[0027] Figure 5 It is the side view of the local structure of the operation frame combined with the dynamic pressing mechanism in the application;

[0028] Figure 6 It is the three-dimensional schematic view of the dynamic pressing mechanism in the application;

[0029] Figure 7 It is the local structure schematic view of the dynamic pressing mechanism in the application.

[0030] In the figure: 1, operation frame; 2, upper mold detail; 3, lower mold detail; 4, guide rod; 401, liquid guide pipe; 402, spiral extrusion rod; 403, hot melting frame; 404, limit gear; 405, chuck; 5, dynamic pressing mechanism; 51, double-shaft motor one; 52, spiral rotating rod; 53, sliding frame; 54, H-shaped lifting frame; 55, double-shaft motor two; 56, main transmission wheel; 57, driven transmission wheel; 58, limit gear roller; 59, turntable; 510, abutting piece; 6, post-processing mechanism; 61, positioning frame one; 62, positioning frame two; 621, air cylinder; 63, abutting frame; 64, abutting roller; 65, inclined chute; 66, sliding shaft; 67, air cylinder; 68, push plug rod. DETAILED DESCRIPTION

[0031] The technical solutions of the application will be described clearly and completely below in combination with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the application.

[0032] Embodiment one: please refer to Figure 1 - Figure 5 As shown in the figure, the pre-positioning injection mold based on the production and manufacturing of the automotive interior part includes the operation frame 1 with S-shaped structure, and the frame grooves with rectangular structure are arranged at the upper, middle and lower ends inside the operation frame 1, the upper and lower inner walls of the middle frame groove of the operation frame 1 are respectively provided with the upper mold detail 2 and the lower mold detail 3, and the guide rod 4 is fixedly installed at the center of the end away from the other one of the upper mold detail 2 and the lower mold detail 3;

[0033] The guide rod 4 located at the top of the upper die body 2 is in a hollow structure and communicates with the material guide hole in the upper die body 2. The inner diameter of the guide liquid pipe 401 vertically arranged in the upper end of the guide rod 4 matches the guide liquid pipe 401. The guide liquid pipe 401 is arranged in the top inner wall of the top frame groove of the operation frame 1. The screw extrusion rod 402 is arranged at the top of the guide liquid pipe 401. The hot melting frame 403 is arranged at the top end of one side of the guide liquid pipe 401.

[0034] The two groups of guide rods 4 extend to the upper and lower frame grooves of the operation frame 1 away from the upper die body 2 and the lower die body 3. The limit gear 404 is fixedly installed outside the guide rod 4 near the top end. Two groups of chucks 405 are fixedly sleeved at the end of the guide rod 4 away from the limit gear 404.

[0035] The dynamic pressing mechanism 5 is arranged between the upper and lower groups of guide rods 4. The dynamic pressing mechanism 5 includes the double-shaft motor 51 arranged at the inner wall of the middle frame groove of the operation frame 1. The double-shaft motor 51 is fixedly installed with the screw rotating rods 52 with reverse threads on the upper and lower output shafts. The two groups of screw rotating rods 52 are externally and spirally sleeved with the sliding frames 53.

[0036] The sliding frame 53 is slidingly connected in the vertical groove arranged on the inner side wall of the operation frame 1. The H-shaped frame lifting 54 is hingedly arranged at the other end of the sliding frame 53. The two groups of H-shaped frame lifting 54 are hingedly arranged at the recessed clamping frame arranged on the upper and lower inner walls of the middle frame groove of the operation frame 1. The one end of the two groups of H-shaped frame lifting 54 is clamped to the outside of the corresponding guide rod 4 and between the adjacent two groups of chucks 405.

[0037] Before injection molding: the double-shaft motor 51 is started to drive the upper and lower groups of screw rotating rods 52 with reverse threads to rotate. The screw rotating rods 52 drive the sliding frames 53 externally and spirally sleeved to move up and down. The sliding frames 53 drive the hingedly arranged H-shaped frame lifting 54 to swing. The one end of the H-shaped frame lifting 54 drives the chuck 405 clamped to the outside of the guide rod 4 to move. The chuck 405 drives the guide rod 4, the upper die body 2 and the lower die body 3 to relatively move close to each other. The upper die body 2 and the lower die body 3 are tightly attached.

[0038] During the injection molding stage: the hot melting plastic colloid in the hot melting frame 403 is guided into the guide liquid pipe 401. The hot melting glue in the guide liquid pipe 401 enters the upper die body 2 through the guide rod 4. The screw extrusion rod 402 extrudes the hot melting glue to force the hot melting glue in the guide liquid pipe 401 to be quickly guided out. Since the upper die body 2 and the lower die body 3 are in a superimposed state, the solution flows into the inner cavity of the lower die body 3 along the inner cavity of the upper die body 2. In this way, the pre-positioning injection molding work of the automotive interior part is completed.

[0039] The dynamic pressing mechanism 5 further comprises a double-shaft motor two 55 arranged at the center of one side of the operation frame 1, and the upper and lower shaft rod ends of the double-shaft motor two 55 are respectively fixedly provided with main transmission wheels 56, each group of main transmission wheels 56 is adjacent and rotatably provided with a slave transmission wheel 57 at the inner wall of the upper and lower frame grooves of the operation frame 1, and a transmission belt is commonly sleeved between the main transmission wheel 56 and the corresponding slave transmission wheel 57;

[0040] A limiting tooth roller 58 is fixedly installed at the bottom shaft rod of each group of slave transmission wheels 57, and each group of limiting tooth rollers 58 is respectively engaged with the adjacent limiting gear 404. A turntable 59 is fixedly sleeved at the shaft rod of the end of each group of slave transmission wheels 57 away from the limiting tooth roller 58, and a plurality of groups of abutting pieces 510 are equidistantly hinged outside the turntable 59;

[0041] When half of the solution is injected into the mold cavity, the double-shaft motor two 55 is started to drive the upper and lower two groups of main transmission wheels 56 to rotate, and the slave transmission wheels 57, the limiting tooth rollers 58 and the chucks 405 are further driven to rotate synchronously through the transmission belt. The limiting tooth roller 58 and the limiting gear 404 engaged therewith also rotate synchronously, and the two groups of limiting gears 404 rotate synchronously to drive the corresponding guide rods 4, the upper mold body 2 and the lower mold body 3 to rotate synchronously;

[0042] At this time, since the upper mold body 2 and the lower mold body 3 coincide, the solution injected into the inner cavity is uniformly distributed in each corner of the mold cavity under the action of centrifugal force, effectively avoiding product defects caused by uneven distribution of the solution during injection molding, and then the remaining glue solution is continuously injected until it is filled;

[0043] At the same time, the turntable 59 rotates with the slave transmission wheel 57, and the abutting pieces 510 thereon continuously abut against the outside of the corresponding guide pipe 401 under the action of centrifugal force, forcing the solution during injection molding to be uniformly and stably injected into the mold cavity, reducing the pipe blockage caused by the solution adhering to the inner wall of the guide pipe 401, and further improving the efficiency and accuracy of the injection molding operation.

[0044] After injection molding: the dynamic pressing mechanism 5 stops working, the H-shaped frame lifting mechanism 54 drives the chuck 405 to reset, and the chuck 405 drives the guide rod 4 and the upper mold body 2 and the lower mold body 3 to reset, facilitating the next injection molding operation.

[0045] Example two: please refer to Figure 2 、 Figure 6 - Figure 7 As shown in the drawings, the inner wall of the middle frame groove of the operation frame 1 and located at one side of the upper mold body 2 and the lower mold body 3 is provided with a post-processing mechanism 6, and the post-processing mechanism 6 comprises a positioning frame one 61 fixedly installed at one side of the opening of the middle frame groove of the operation frame 1, and a positioning frame two 62 movably arranged close to the opening of the middle frame groove;

[0046] The positioning frame one 61 is provided with a pneumatic cylinder 621 near the center of the side of the positioning frame two 62, and the end of the push rod provided at the output end of the pneumatic cylinder 621 is fixedly connected with the positioning frame two 62. Rectangular clamping grooves are arranged at the upper and lower ends inside the positioning frame one 61 and the positioning frame two 62. The inner walls of the two sets of rectangular clamping grooves in the positioning frame one 61 are respectively hingedly connected with abutting frames 63, and the two sets of abutting frames 63 are mirror-symmetrically arranged relative to the central axis of the positioning frame one 61.

[0047] One end of the abutting frame 63 extends to the outside of the rectangular clamping groove and is inlaidly hingedly connected with an abutting roller 64. The two sets of abutting rollers 64 are respectively located at the adjacent positions of the upper mold body 2 and the lower mold body 3. The other end of the abutting frame 63 penetrates into the rectangular clamping groove inside the positioning frame two 62. The front and rear inner walls of the abutting frame 63 are respectively provided with inclined grooves 65 away from one end of the abutting roller 64. The front and rear inner walls of the rectangular clamping groove of the positioning frame two 62 are respectively provided with sliding shafts 66. Each set of sliding shafts 66 is respectively and slidingly connected in the corresponding inclined groove 65.

[0048] During the injection molding process, after the liquid in the upper mold body 2 and the lower mold body 3 solidifies, the pneumatic cylinder 621 drives the push rod to push the positioning frame two 62 to move away from the positioning frame one 61. The sliding shafts 66 slide in the inclined grooves 65. Due to the inclined arrangement of the inclined grooves 65, the sliding shafts 66 are forced to lift one end of the abutting frame 63 away from one end of the abutting roller 64. The end of the abutting roller 64 is lowered and moves towards the upper mold body 2 or the lower mold body 3 until the abutting roller 64 is tightly attached to the surface of the upper mold body 2 or the lower mold body 3.

[0049] If the push rod pushes the positioning frame two 62 to reset, the abutting frame 63 is forced to be flat, and the abutting roller 64 is away from the surface of the upper mold body 2 or the lower mold body 3. Thus, the above steps can be repeated to achieve intermittent knocking of the upper mold body 2 or the lower mold body 3, and further realize periodic and uniform knocking of the upper mold body 2 or the lower mold body 3 by cooperating with the self-rotation of the upper mold body 2 or the lower mold body 3. The knocking force generated can effectively promote the heat transfer between the mold and the product, accelerate the cooling and solidification process of the product. At the same time, through the intermittent knocking method, the adhesion phenomenon between the mold and the product due to long-time contact can be effectively prevented, ensuring the integrity and surface smoothness of the product.

[0050] It is worth noting that this kind of knocking method is also applicable to the case where the upper mold body 2 or the lower mold body 3 is separated to assist the finished interior part to separate from the upper mold body 2 or the lower mold body 3.

[0051] In addition, air cylinders 67 are fixedly and penetratingly arranged inside the positioning frame one 61 and located at the upper and lower ends of the pneumatic cylinder 621. One end of the air cylinder 67 extends to the outside of the positioning frame one 61 and is located at the same side as the abutting roller 64. Push plug rods 68 are penetratingly arranged inside each set of air cylinders 67, and one end of the push plug rod 68 is fixedly connected with the side wall of the positioning frame two 62.

[0052] And in the positioning frame two 62 reciprocating movement, push the plug rod 68 will follow the positioning frame two 62 synchronous movement, push the plug rod 68 in the air cylinder 67 inside the movement will produce gas, when the positioning frame two 62 to the direction away from the positioning frame one 61 movement, push the plug rod 68 will be pushed into the air cylinder 67 inside, thus the air cylinder 67 inside the gas push out and up to the upper die 2 or lower die 3 gap blows out, and with the upper die 2 or lower die 3 rotation, while realizing the cooling of the mold pressure seam, and auxiliary cleaning of the small particles or residues attached to the surface of the mold, which is essential to ensure the cleanliness and final quality of the interior trim parts.

[0053] Working principle: in use, first in the injection, dynamic pressure mechanism 5 starts, through the double shaft motor one 51 drive screw rod 52 rotation, in turn drive slide frame 53 and H type frame 54 move, make the upper die 2 and lower die 3 closely, for injection operation ready;

[0054] Injection stage: hot melt plastic colloid is introduced into the liquid duct 401, through the extrusion of screw extrusion rod 402, accelerate the speed of hot melt glue export, ensure that the solution can be evenly, quickly fill in the upper die 2 and lower die 3 between, at the same time, double shaft motor two 55 starts, through the transmission belt drive from the transmission wheel 57, limit gear roller 58 and chuck 405 synchronous rotation, make the upper die 2 and lower die 3 in the injection process rotation, using centrifugal effect makes the solution evenly distributed in the mold cavity, avoid the solution distribution uneven lead to product defects, the rotation of the disc 59 further ensure that the solution evenly and stably in the injection process into the mold cavity, reduce the pipe blockage, improve the efficiency and accuracy of injection operation;

[0055] After injection, dynamic pressure mechanism 5 stop operation, H type frame 54 drive chuck 405 reset, for the next injection operation ready, in addition, the knocking and blowing function of post processing mechanism 6 further promote the heat transfer between the mold and product, accelerate the product cooling solidification process, and effectively prevent the adhesion phenomenon between the mold and product, ensure the integrity and surface smoothness of the product, at the same time, remove the small particles or residues attached to the surface of the mold, ensure the cleanliness and final quality of the interior trim parts, as described above, the present application realizes the efficient and accurate production of automotive interior trim parts through the innovative design of prepositioning injection mold, has significant technical advantages and practical application value.

[0056] The preferred embodiments of the application disclosed above are only to facilitate the elucidation of the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments. Obviously, many modifications and variations can be made in light of the teachings above. The description is chosen and described in order to provide the best illustration of the application and its practical application to those skilled in the art and to enable those skilled in the art to best utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A pre-positioning injection mold based on the production and manufacturing of automotive interior parts, comprising an operating frame (1) of S-shaped structure, and a frame groove of rectangular structure is arranged at the upper, middle and lower ends inside the operating frame (1), characterized in that: The upper and lower inner walls of the middle section frame groove of the operation frame (1) are respectively provided with an upper die body (2) and a lower die body (3), the center of the end of the upper die body (2) and the lower die body (3) away from each other is fixedly installed with a guide rod (4), and the upper and lower two groups of guide rods (4) are jointly provided with a dynamic pressing mechanism (5); the inner wall of the middle section frame groove of the operation frame (1) and located on the side of the upper die body (2) and the lower die body (3) is provided with a post-processing mechanism (6); Wherein, the guide rod (4) located at the top of the upper die body (2) is in a hollow structure, and it is communicated with the material guide opening in the upper die body (2), and the inner vertical of the upper guide rod (4) is provided with a guide liquid pipe (401) matched in inner diameter, and the guide liquid pipe (401) is provided in the top inner wall of the top frame groove of the operation frame (1), the top of the guide liquid pipe (401) is provided with a spiral extrusion rod (402), and the side of the guide liquid pipe (401) is provided with a hot melting frame (403).

2. The pre-positioning injection mold based on the production and manufacturing of automotive interior parts according to claim 1, characterized in that, The ends of the two groups of guide rods (4) away from the upper die body (2) and the lower die body (3) extend into the upper and lower frame grooves of the operation frame (1) respectively, the outer end of the guide rod (4) is fixedly installed with a limiting gear (404) close to the top, and the end of the guide rod (4) away from the limiting gear (404) is fixedly sleeved with two groups of chucks (405).

3. The pre-positioning injection mold based on the production and manufacturing of automotive interior parts according to claim 1, characterized in that, The dynamic pressing mechanism (5) comprises a double-shaft motor (51) provided on the inner wall of the middle section frame groove of the operation frame (1), and the upper and lower output shafts of the double-shaft motor (51) are respectively fixedly installed with screw rods (52) with reverse threads, and the outer portions of the two groups of screw rods (52) are respectively screwedly sleeved with slide frames (53); The one end of the slide frame (53) is slidably connected in the vertical groove provided on the inner side wall of the operation frame (1), and the other end thereof is hingedly connected with an H-shaped frame lifting (54), and the middle sections of the two groups of H-shaped frame lifting (54) are hingedly connected through the concave clamping frames fixedly installed on the upper and lower inner walls of the middle section frame groove of the operation frame (1), and the ends of the two groups of H-shaped frame lifting (54) away from the slide frame (53) are respectively clamped on the outer portions of the corresponding guide rods (4) and located between the adjacent two groups of chucks (405).

4. The pre-positioning injection mold based on the production and manufacturing of automotive interior parts according to claim 1, characterized in that, The dynamic pressing mechanism (5) further comprises a double-shaft motor (55) provided at the center of one side of the operation frame (1), and the upper and lower shaft rod ends of the double-shaft motor (55) are respectively fixedly installed with main transmission wheels (56), each group of main transmission wheels (56) are adjacently and located at the inner walls of the upper and lower frame grooves of the operation frame (1) and are rotatably provided with slave transmission wheels (57), the main transmission wheels (56) and the corresponding slave transmission wheels (57) are jointly sleeved with transmission belts, and the bottom shaft rods of each group of slave transmission wheels (57) are fixedly installed with limiting tooth rollers (58).

5. The pre-positioning injection mold based on the production and manufacturing of automotive interior parts according to claim 4, characterized in that, Each group of limiting tooth rollers (58) are respectively engaged with adjacent limiting gears (404), and the shaft rod ends of each group of slave transmission wheels (57) away from the limiting tooth rollers (58) are fixedly sleeved with rotating discs (59), and the outer portions of the rotating discs (59) are equidistantly hingedly connected with a plurality of groups of abutting pieces (510).

6. The pre-positioning injection mold based on the production and manufacturing of automotive interior parts according to claim 1, characterized in that, The post-processing mechanism (6) includes a positioning frame one (61) fixedly installed at one side opening of the middle frame groove of the operation frame (1), and the positioning frame one (61) is movably provided with a positioning frame two (62) close to the opening of the middle frame groove, the positioning frame one (61) is provided with a gas cylinder (621) at the center close to the side of the positioning frame two (62), and the end of the push rod provided at the output end of the gas cylinder (621) is fixedly connected with the positioning frame two (62); The positioning frame one (61) and the positioning frame two (62) are provided with rectangular clamping grooves at the upper and lower ends inside, and the inner walls of the two groups of rectangular clamping grooves of the positioning frame one (61) are respectively hinged with abutting frames (63), and the two groups of abutting frames (63) are mirror-symmetric relative to the center axis of the positioning frame one (61).

7. The pre-positioning injection mold based on the production of automotive interior parts according to claim 6, characterized in that, One end of the abutting frame (63) extends to the outside of the rectangular clamping groove and is inlaidly hinged with an abutting roller (64), and the upper and lower groups of abutting rollers (64) are respectively located at the adjacent positions of the upper die body (2) and the lower die body (3), and the other end of the abutting frame (63) penetrates into the rectangular clamping groove inside the positioning frame two (62). The front and rear inner walls of the abutting frame (63) are respectively provided with inclined grooves (65) away from one end of the abutting roller (64), and the front and rear inner walls of the rectangular clamping groove of the positioning frame two (62) are provided with sliding shafts (66), and each group of sliding shafts (66) are respectively slidingly connected in the corresponding inclined grooves (65).

8. The pre-positioning injection mold based on the production and manufacturing of automotive interior parts according to claim 6, characterized in that, The positioning frame one (61) is fixedly and penetratively provided with air cylinders (67) at the upper and lower ends of the gas cylinder (621), one end of the air cylinder (67) extends to the outside of the positioning frame one (61) and is located at the same side as the abutting roller (64), each group of air cylinders (67) are penetratively provided with push plug rods (68) inside, and one end of the push plug rod (68) is fixedly connected with the side wall of the positioning frame two (62).

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