Core pulling mechanism of mold for producing automotive upholstery

Abstract

The invention relates to the technical field of automotive upholstery production, in particular to a core pulling mechanism of a mold for automotive upholstery production. According to the technical scheme, the core pulling mechanism of the mold for producing the automotive upholstery comprises a core pulling structure arranged on one side of a movable mold, a static mold used in cooperation with the movable mold is arranged on one side of the movable mold, and an injection molding groove used in cooperation with the core pulling structure is formed in the side, close to the movable mold, of the static mold; the number of the injection molding grooves is multiple. The mold has the beneficial effects that by means of a core pulling structure, before the static mold and the movable mold are separated, three adjusting rods and three arc-shaped rods can retract inwards, so that contact between the automobile interior trim parts and the adjusting rods and the arc-shaped rods is eliminated, after the static mold and the movable mold are separated, a movable plate can move reversely under the action of a first spring, and therefore the automobile interior trim parts are fixed. Therefore, contact between the automotive upholstery and the movable mold and the static mold is canceled, and finally, core pulling action is realized by means of the conversion unit, so that the demolding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile interior decoration production, in particular to a core pulling mechanism of a mold used for automobile interior decoration production. Background Art

[0002] Car interior mainly refers to the car products used for car interior modification, involving all aspects of the car interior. Some car interior parts require the use of foaming molds in the processing. Due to the particularity of the production process of the foaming mold, the material needs to be melted and then fed into the mold through a material gun. The product is cooled after molding, and the product is ejected and dried. Some products have perforations on the side, which require cylinder core pulling to meet the product requirements.

[0003] When the existing core pulling mechanism is performing core pulling, the contact points between the core pulling rod and the automobile interior parts and the contact points between the automobile interior parts and the mold are easy to stick together. When the core pulling rod is pulled out from the automobile interior parts, the automobile interior parts are easily damaged, thereby affecting the demoulding efficiency of the automobile interior parts.

[0004] Combining the above problems, it is found that it is difficult to avoid the above problems at the same time when using the core pulling mechanism of the existing molds on the market, and even if it can be solved, it needs to be solved by external tools, so that the desired effect cannot be achieved. Therefore, a core pulling mechanism for a mold for the production of automotive interior parts is proposed. Summary of the invention

[0005] The object of the present invention is to provide a core pulling mechanism for a mold used in the production of automotive interior decoration parts, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a core-pulling mechanism for a mold for producing automotive interior parts, comprising a core-pulling structure arranged on one side of a movable mold, a static mold used in conjunction with the movable mold is arranged on one side of the movable mold, an injection molding groove used in conjunction with the core-pulling structure is provided on a side of the static mold close to the movable mold, the number of the injection molding grooves is several, and an injection molding hole is provided in the inner cavity of the injection molding groove, the core-pulling structure comprises a buffer unit, and the buffer unit is used to separate the automotive interior parts from the movable mold and reduce the impact force during mold closing;

[0007] The core pulling structure further includes a conversion unit, which is used in conjunction with a buffer unit and is used to reduce the arrangement space of the mold;

[0008] A coating mechanism is disposed on one side of the buffer unit. The coating mechanism is used in conjunction with a core-pulling structure and is used to assist core-pulling.

[0009] Preferably, the buffer unit includes a movable plate movably connected to one side of the movable mold, one side of the movable plate is provided with a groove used in conjunction with the injection groove, the inner cavity of the groove is fixedly connected with a ring, the inner cavity of the ring is slidably connected with a core pulling part, one side of the movable mold is provided with a placement groove used in conjunction with the groove, one side of the movable plate is fixedly connected with a damping telescopic rod, the surface of the damping telescopic rod is slidably connected to the inner cavity of the movable mold, the surface of the damping telescopic rod is movably sleeved with a first spring, one end of the first spring is fixedly connected to the damping telescopic rod, and the other end of the first spring is fixedly connected to the inner wall of the movable mold.

[0010] Preferably, the core pulling part includes fixed plates respectively fixedly connected to both sides of the movable mold, the movable plate is located between the two fixed plates and contacts with the fixed plates, a slide groove is opened on one side of the fixed plate, a sliding groove is slidably connected to the inner cavity of the slide groove with a sliding block, one side of the sliding block is fixedly connected to the circular ring, the inner cavity of the circular ring is slidably connected to three arc rods and three adjusting rods, the three adjusting rods and the three arc rods form a cylinder, one end of the three adjusting rods and the three arc rods are fixedly connected to guide rods, one end of the six guide rods are slidably connected to the cylindrical rod, the inner cavity of the cylindrical rod is slidably connected to a pushing rod, one end of the pushing rod is fixedly connected to an extrusion block, the extrusion block is conically arranged, the surface of the extrusion block contacts with the arc rod and the adjusting rod, and one end of the pushing rod is fixedly connected to a mounting plate.

[0011] Preferably, the conversion unit includes a cylinder slidably connected to one side of a fixed plate, the telescopic end of the cylinder is fixedly connected to a toothed plate, through holes are provided on one side of the movable mold and the fixed plate, the inner cavity of the through hole is slidably connected to a moving rod, the inner cavity of the moving rod is rotatably connected to a threaded sleeve, the inner cavity of the threaded sleeve is threadedly connected to two threaded rods, the threads on the surfaces of the two threaded rods are opposite, the surface of the threaded sleeve is fixedly connected to teeth used in conjunction with the toothed plate, the number of the teeth is several, one side of the mounting plate is fixedly connected to a mounting block, and one end of the threaded rod is fixedly connected to one side of the mounting block.

[0012] Preferably, an L-shaped rod is fixedly connected to one side of the sliding block, and one end of the L-shaped rod is fixedly connected to the surface of the cylinder.

[0013] Preferably, one end of the guide rod is fixedly connected to a dovetail block, the surface of the dovetail block is slidably connected to the inner cavity of the cylindrical rod, one side of the dovetail block is fixedly connected to a tension spring, one end of the tension spring is fixedly connected to the inner wall of the cylindrical rod.

[0014] Preferably, a clamping block is fixedly connected to one side of the static mold, and a clamping groove for use with the clamping block is provided on the surface of the cylindrical rod.

[0015] Preferably, the smearing mechanism comprises a liquid storage tank fixedly connected to one side of the mounting plate, one side of the liquid storage tank is fixedly connected to a liquid extraction shell, the inner cavity of the liquid extraction shell is provided with a cavity, the inner cavity of the cavity is slidably connected to a sealing ring, one side of the sealing ring is fixedly connected to a liquid guide tube, the inner cavity of the liquid guide tube is slidably connected to a fixed tube, one end of the fixed tube is fixedly connected to a first one-way valve, the surface of the first one-way valve is fixedly connected to a sealing ring, the surface of the sealing ring is in close contact with the inner cavity of the liquid guide tube, one end of the fixed tube is fixedly connected to a limiting plate, and the limiting plate is close to one side of the fixed plate The valve body is fixedly connected to the fixing plate, the bottom of the limit plate is fixedly connected with a bellows, one end of the bellows is fixedly connected with the top of the slider, the inner cavity of the slider is provided with a drainage hole, the inner wall of the slider is fixedly connected with a smear rubber block, the number of the smear rubber blocks is several, the number of the drainage holes is several, the drainage hole is connected with the cavity through the bellows, the limit plate, the fixed pipe, and the first one-way valve, one side of the liquid extraction shell is fixedly connected with a second one-way valve connected with the cavity, one end of the second one-way valve is fixedly connected with a connecting pipe, and one end of the connecting pipe passes through the inner wall of the liquid storage tank.

[0016] Preferably, the inner wall of the liquid storage tank is fixedly connected with a concave block, one end of the connecting tube is fixedly connected with an extension tube, one end of the extension tube is located at the bottom of the inner wall of the liquid storage tank, and the surface of the extension tube contacts the inner wall of the concave block.

[0017] Preferably, the top of the liquid storage tank is fixedly connected to a liquid inlet pipe, and the surface of the liquid inlet pipe is threadedly connected to a sealing cover.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention utilizes a core-pulling structure. When the static mold and the dynamic mold are molded together, the impact force is reduced by a moving plate, a first spring and a damping telescopic rod. The injection groove, the placement groove and the groove form a closed circular groove, and the inner wall of the circular groove contacts the surface of the circular ring. When the core-pulling member is located in the inner cavity of the circular groove, the molten material is injected into the gap between the core-pulling member and the circular groove, thereby foaming the automotive interior decoration. Before the static mold is separated from the dynamic mold, the three adjustment rods and the three arc rods will shrink inward, so that the automotive interior decoration will cancel the contact with the adjustment rods and the arc rods. After the static mold is separated from the dynamic mold, the moving plate will move in the opposite direction under the action of the first spring, so that the automotive interior decoration will cancel the contact with the dynamic mold and the static mold. Finally, the core-pulling action is realized with the help of the conversion unit, thereby increasing the demolding efficiency and avoiding the automotive interior decoration from being bonded to the adjustment rods and the arc rods.

[0020] 2. The present invention utilizes a coating mechanism. When the core-pulling part is pulled, the release agent in the liquid storage tank can be sucked into the cavity. When the core-pulling part is reset, the release agent in the cavity can be coated on the surfaces of the three adjustment rods and the three arc rods, so that the automobile interior decoration parts can be better removed and the demolding efficiency is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Fig. 1 is a schematic diagram of the overall structure of the present invention;

[0022] FIG2 is a partial enlarged view of point A in FIG1 of the present invention;

[0023] FIG3 is a schematic structural diagram of a static mold of the present invention;

[0024] FIG4 is a schematic structural diagram of a movable mold and a fixed plate of the present invention;

[0025] FIG5 is a schematic diagram of the structure of the movable plate and the slider of the present invention;

[0026] FIG6 is a schematic diagram of the structure of the movable plate and the ring of the present invention;

[0027] FIG7 is a partial enlarged view of point B in FIG6 of the present invention;

[0028] FIG8 is a schematic structural diagram of a cylindrical rod, an adjusting rod and an arc-shaped rod according to the present invention;

[0029] FIG9 is a cross-sectional schematic diagram of the liquid storage tank and the liquid extraction shell of the present invention;

[0030] FIG10 is a partial enlarged view of point C in FIG9 of the present invention;

[0031] FIG11 is a cross-sectional schematic diagram of a moving rod and a threaded sleeve of the present invention;

[0032] FIG. 12 is a schematic cross-sectional view of the adjusting rod and the arc rod of the present invention.

[0033] In the figure: 1, moving mold; 11, static mold; 12, injection groove; 13, injection hole; 2, core pulling structure; 21, buffer unit; 2101, moving plate; 2102, groove; 2103, ring; 2104, core pulling piece; 2105, placement groove; 2106, damping telescopic rod; 2107, first spring; 2108, fixed plate; 2109, slide groove; 2110, slider; 2111, arc rod; 2112, adjustment rod; 2113, guide rod; 2114, cylindrical rod; 2115, push rod; 2116, extrusion block; 2117, mounting plate; 2118, dovetail block; 2119, tension spring; 2120, clamping block; 2121, clamping groove; 2 2. Conversion unit; 2201. Cylinder; 2202. Tooth plate; 2203. Through hole; 2204. Moving rod; 2205. Threaded sleeve; 2206. Threaded rod; 2207. Tooth; 2208. Mounting block; 2209. L-shaped rod; 3. Smearing mechanism; 31. Liquid storage tank; 32. Liquid extraction shell; 33. Cavity; 34. Sealing ring; 35. Liquid guide tube; 36. Fixed tube; 37. First one-way valve; 38. Sealing ring; 39. Limiting plate; 310. Bellows; 311. Liquid discharge hole; 312. Smearing rubber block; 313. Second one-way valve; 314. Connecting pipe; 315. Concave block; 316. Extension pipe; 317. Liquid inlet pipe; 318. Sealing cover. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1: Please refer to Figures 1 to 12. The present invention provides a technical solution: a core pulling mechanism for a mold for producing automotive interior parts. The present invention makes corresponding improvements to the technical problems mentioned in the background technology, including a core pulling structure 2 arranged on one side of a movable mold 1, a static mold 11 used in conjunction with the movable mold 1 is arranged on one side of the movable mold 1, and an injection groove 12 used in conjunction with the core pulling structure 2 is provided on the side of the static mold 1 close to the movable mold 1. The number of the injection grooves 12 is several, and the inner cavity of the injection groove 12 is provided with an injection hole 13. The core pulling structure 2 includes a buffer unit 21, and the buffer unit 21 is used to separate the automotive interior parts from the movable mold 1 and reduce the impact force during mold closing.

[0036] As a further limitation of the core pulling structure 2 of the present invention, the buffer unit 21 includes a movable plate 2101 movably connected to one side of the movable mold 1, a groove 2102 used in conjunction with the injection molding groove 12 is provided on one side of the movable plate 2101, a ring 2103 is fixedly connected to the inner cavity of the groove 2102, a core pulling piece 2104 is slidably connected to the inner cavity of the ring 2103, a placement groove 2105 used in conjunction with the groove 2102 is provided on one side of the movable mold 1, a damping telescopic rod 2106 is fixedly connected to one side of the movable plate 2101, the surface of the damping telescopic rod 2106 is slidably connected to the inner cavity of the movable mold 1, a first spring 2107 is movably sleeved on the surface of the damping telescopic rod 2106, one end of the first spring 2107 is fixedly connected to the damping telescopic rod 2106, and the other end of the first spring 2107 is fixedly connected to the inner wall of the movable mold 1, and by setting The buffer unit 21 reduces the impact force by the movable plate 2101, the first spring 2107 and the damping telescopic rod 2106 when the static mold 11 is molded together with the dynamic mold 1, wherein the injection groove 12, the placement groove 2105 and the groove 2102 form a closed circular groove, and the inner wall of the circular groove contacts the surface of the ring 2103, and when the core pulling member 2104 is located in the inner cavity of the circular groove, the molten material is injected into the gap between the core pulling member 2104 and the circular groove, thereby foaming the automotive interior decoration parts, and before the static mold 11 is separated from the dynamic mold 1, the core pulling member 2104 will shrink inward, so that the automotive interior decoration parts will cancel the contact with the core pulling member 2104, and after the static mold 11 is separated from the dynamic mold 1, the movable plate 2101 will move in the opposite direction under the action of the first spring 2107, so that the automotive interior decoration parts will cancel the contact with the dynamic mold 1 and the static mold 11.

[0037] The core pulling member 2104 includes fixed plates 2108 respectively fixedly connected to both sides of the movable mold 1, the movable plate 2101 is located between the two fixed plates 2108 and contacts the fixed plates 2108, a slide groove 2109 is provided on one side of the fixed plate 2108, a slider 2110 is slidably connected to the inner cavity of the slide groove 2109, one side of the slider 2110 is fixedly connected to the ring 2103, and three arc rods 2111 and three adjusting rods 2112 are slidably connected to the inner cavity of the ring 2103, and the three adjusting rods 2112 and the three arc rods 2111 form a cylindrical The three adjusting rods 2112 and the three arc-shaped rods 2111 are all fixedly connected to the guide rod 2113 at one end, and the six guide rods 2113 are slidably connected to the cylindrical rod 2114 at one end. The inner cavity of the cylindrical rod 2114 is slidably connected to the push rod 2115. One end of the push rod 2115 is fixedly connected to the extrusion block 2116. The extrusion block 2116 is conically arranged. The surface of the extrusion block 2116 contacts the arc-shaped rod 2111 and the adjusting rod 2112. One end of the push rod 2115 is fixedly connected to the mounting plate 2117. By setting the core pulling When the core is pulled, the mounting plate 2117 is moved, and the mounting plate 2117 drives the push rod 2115 to move, so that the extrusion block 2116 cancels the extrusion of the three adjustment rods 2112 and the three arc rods 2111, so that the three adjustment rods 2112 and the three arc rods 2111 move in a retracted state, thereby canceling the contact between the adjustment rods 2112 and the arc rods 2111 and the automobile interior parts, thereby increasing the demoulding efficiency. Before molding, the adjustment rods 2112 and the arc rods 2111 are retracted. When the static mold 11 and the dynamic mold 1 are in the mold, the movable plate 2101 will move in the opposite direction, so that the push rod 2115 drives the extrusion block 2116 to extrude the adjusting rod 2112 and the arc rod 2111, so that the three adjusting rods 2112 and the three arc rods 2111 form a cylindrical assembly with the same diameter as the cylindrical rod 2114, so that the molten material can be injected between the cylindrical assembly and the circular groove, and when the static mold 11 and the dynamic mold 1 are closed, the movable plate 2101 will move, thereby driving the ring 2103 and the slider 2110 to move.

[0038] One end of the guide rod 2113 is fixedly connected to a dovetail block 2118, and the surface of the dovetail block 2118 is slidably connected to the inner cavity of the cylindrical rod 2114. One side of the dovetail block 2118 is fixedly connected to a tension spring 2119, and one end of the tension spring 2119 is fixedly connected to the inner wall of the cylindrical rod 2114. By setting the dovetail block 2118 and the tension spring 2119 for coordinated use, when the adjusting rod 2112 and the arc rod 2111 are squeezed, the dovetail block 2118 will be driven to slide in the inner cavity of the cylindrical rod 2114, so that the tension spring 2119 is deformed under force. When the squeezing of the adjusting rod 2112 and the arc rod 2111 is cancelled, the dovetail block 2118 can be reset by the force deformation of the tension spring 2119.

[0039] A clamping block 2120 is fixedly connected to one side of the static mold 11, and a clamping groove 2121 for use with the clamping block 2120 is provided on the surface of the cylindrical rod 2114. By setting the clamping block 2120 and the clamping groove 2121 for use together, when the static mold 11 and the dynamic mold 1 are molded together, the clamping block 2120 will be stuck in the clamping groove 2121 through the hole on the ring 2103. When core pulling is performed, the push rod 2115 is moved first to cancel the extrusion block 2116, and then the mold is canceled, so that the clamping block 2120 cancels the limit on the cylindrical rod 2114.

[0040] The specific implementation of this embodiment is as follows: the impact force is reduced by the moving plate 2101, the first spring 2107 and the damping telescopic rod 2106, wherein the injection groove 12, the placement groove 2105 and the groove 2102 form a closed circular groove, and the inner wall of the circular groove contacts the surface of the ring 2103. Before the static mold 11 and the movable mold 1 are molded together, the push rod 2115 drives the extrusion block 2116 to extrude the adjustment rod 2112 and the arc rod 2111, so that the three adjustment rods 2112 and the three arc rods 2111 form a cylindrical assembly with the same diameter as the cylindrical rod 2114, and the cylindrical assembly is located in the inner cavity of the circular groove, and the molten material is injected into the gap between the cylindrical assembly and the circular groove, so that For the foaming molding of automobile interior decoration parts, before the static mold 11 is separated from the dynamic mold 1, the push rod 2115 is moved first, so that the extrusion block 2116 cancels the extrusion of the three adjustment rods 2112 and the three arc rods 2111, so that the three adjustment rods 2112 and the three arc rods 2111 move in a retracted state, thereby canceling the contact between the adjustment rods 2112 and the arc rods 2111 and the automobile interior decoration parts, thereby increasing the demolding efficiency and canceling the contact between the automobile interior decoration parts and the core pulling parts 2104, and when the static mold 11 is separated from the dynamic mold 1, the movable plate 2101 will move in the opposite direction under the action of the first spring 2107, so that the automobile interior decoration parts will cancel the contact with the dynamic mold 1 and the static mold 11.

[0041] Embodiment 2: Please refer to Figures 1 to 12. The present invention provides a technical solution: a core pulling mechanism for a mold for producing automotive interior parts. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The core pulling structure 2 also includes a conversion unit 22. The conversion unit 22 is used in conjunction with the buffer unit 21. The conversion unit 22 is used to reduce the arrangement space of the mold.

[0042] As a further limitation of the core pulling structure 2 of the present invention, the conversion unit 22 includes a cylinder 2201 slidably connected to one side of the fixed plate 2108, the telescopic end of the cylinder 2201 is fixedly connected to the tooth plate 2202, and a through hole 2203 is opened on one side of the movable mold 1 and the fixed plate 2108. The inner cavity of the through hole 2203 is slidably connected to the moving rod 2204, and the inner cavity of the moving rod 2204 is rotatably connected to the threaded sleeve 2205. The inner cavity of the threaded sleeve 2205 is threadedly connected to two threaded rods 2206, and the threads on the surfaces of the two threaded rods 2206 are opposite. The surface of the threaded sleeve 2205 is fixedly connected to teeth 2207 used in conjunction with the tooth plate 2202, and the number of teeth 2207 is several. One side of the mounting plate 2117 is fixedly connected to a mounting block 2208, and the threaded rod 2206 One end of the threaded rod 2206 is fixedly connected to one side of the mounting block 2208. By setting the conversion unit 22, when the core is pulled, the cylinder 2201 is started by using an external control switch to move the tooth plate 2202. Since the tooth plate 2202 is engaged with the teeth 2207, the threaded sleeve 2205 is rotated. Since one end of the threaded rod 2206 is fixedly connected to the mounting block 2208, the threaded rod 2206 is moved. Since the threads of the two threaded rods 2206 are in opposite directions, the threaded rod 2206 will drive the two mounting blocks 2208 and the two mounting plates 2117 to move to the opposite side, thereby achieving the effect of driving the core pulling part 2104 to move. In addition, the conversion unit 22 can reduce the space occupied by the cylinder 2201 and reduce the arrangement space of the mold.

[0043] An L-shaped rod 2209 is fixedly connected to one side of the slider 2110, and one end of the L-shaped rod 2209 is fixedly connected to the surface of the cylinder 2201. By setting the L-shaped rod 2209, when the slider 2110 is moved, the cylinder 2201 will be driven to move, thereby achieving the effect of keeping the tooth plate 2202 in contact with the teeth 2207.

[0044] The specific implementation method of this embodiment is as follows: when core pulling is performed, the cylinder 2201 is started by using an external control switch to move the tooth plate 2202. Since the tooth plate 2202 is meshed with the teeth 2207, the threaded sleeve 2205 is rotated. Since one end of the threaded rod 2206 is fixedly connected to the mounting block 2208, the threaded rod 2206 is moved. Since the threads of the two threaded rods 2206 are in opposite directions, the threaded rod 2206 will drive the two mounting blocks 2208 and the two mounting plates 2117 to move to opposite sides. When the extrusion block 2116 cancels the extrusion of the adjusting rod 2112 and the arc rod 2111, the cylinder 2201 is stopped to open the movable mold 1 and the static mold 11, and then the cylinder 2201 is started again to achieve the effect of core pulling.

[0045] Embodiment 3: Please refer to Figures 1 to 12. The present invention provides a technical solution: a core pulling mechanism of a mold for producing automotive interior parts. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. A smearing mechanism 3 is provided on one side of the buffer unit 21. The smearing mechanism 3 is used in conjunction with the core pulling structure 2. The smearing mechanism 3 is used to assist the core pulling.

[0046] The smearing mechanism 3 includes a liquid storage tank 31 fixedly connected to one side of the mounting plate 2117, a liquid extraction shell 32 fixedly connected to one side of the liquid storage tank 31, a cavity 33 is provided in the inner cavity of the liquid extraction shell 32, a sealing ring 34 is slidably connected to the inner cavity of the cavity 33, a liquid guide tube 35 is fixedly connected to one side of the sealing ring 34, a fixed tube 36 is slidably connected to the inner cavity of the liquid guide tube 35, one end of the fixed tube 36 is fixedly connected to a first one-way valve 37, a sealing ring 38 is fixedly connected to the surface of the first one-way valve 37, and the surface of the sealing ring 38 is tightly connected to the inner cavity of the liquid guide tube 35. The fixing tube 36 is in contact with the fixing plate 2108, one end of the fixing tube 36 is fixedly connected to the limiting plate 39, the side of the limiting plate 39 close to the fixing plate 2108 is fixedly connected to the fixing plate 2108, the bottom of the limiting plate 39 is fixedly connected to the bellows 310, one end of the bellows 310 is fixedly connected to the top of the slider 2110, the inner cavity of the slider 2110 is provided with a drainage hole 311, the inner wall of the slider 2110 is fixedly connected to a smearing rubber block 312, the number of the smearing rubber blocks 312 is several, the number of the drainage holes 311 is several, and the drainage holes 311 are connected through the bellows 310. 10. The limit plate 39, the fixed tube 36, and the first one-way valve 37 are in communication with the cavity 33. One side of the liquid extraction shell 32 is fixedly connected with a second one-way valve 313 in communication with the cavity 33. One end of the second one-way valve 313 is fixedly connected with a connecting tube 314. One end of the connecting tube 314 penetrates the inner wall of the liquid storage tank 31. By setting the smearing mechanism 3, when the core is pulled, the mounting plate 2117 will drive the liquid extraction shell 32 to move, the liquid guide tube 35 and the sealing ring 34 move in the cavity 33, and the fixed tube 36 and the sealing ring 38 are in the liquid guide tube. The inner cavity of the liquid storage tank 31 moves, so that the demoulding agent in the liquid storage tank 31 is sucked into the cavity 33 through the second one-way valve 313. When the core pulling part 2104 is reset, the liquid guide tube 35 and the sealing ring 34 move in the opposite direction in the cavity 33, and the fixed tube 36 and the sealing ring 38 move in the opposite direction in the inner cavity of the liquid guide tube 35, so that the demoulding agent can be squeezed from the first one-way valve 37 into the fixed tube 36, the limit plate 39, and the bellows 310 and discharged from the drainage hole 311, thereby achieving the effect of applying the demoulding agent to the core pulling part 2104.

[0047] The inner wall of the liquid storage tank 31 is fixedly connected to a concave block 315, and one end of the connecting tube 314 is fixedly connected to an extension tube 316. One end of the extension tube 316 is located at the bottom of the inner wall of the liquid storage tank 31, and the surface of the extension tube 316 is in contact with the inner wall of the concave block 315. By arranging the extension tube 316 and the concave block 315 for use together, one end of the extension tube 316 is placed at the bottom of the inner cavity of the liquid storage tank 31, thereby ensuring that the release agent is sucked into the cavity 33.

[0048] The top of the liquid storage tank 31 is fixedly connected to a liquid inlet pipe 317, and a sealing cover 318 is threadedly connected to the surface of the liquid inlet pipe 317. By arranging the liquid inlet pipe 317 and the sealing cover 318 for use together, the sealing cover 318 can be rotated, and then the release agent can be added from the liquid inlet pipe 317. After the addition, the liquid inlet pipe 317 is blocked by the sealing cover 318 to prevent the release agent from leaking.

[0049] The specific implementation of this embodiment is as follows: when the core is pulled, the mounting plate 2117 drives the liquid extraction shell 32 to move, the liquid guide tube 35 and the sealing ring 34 move in the cavity 33, the fixed tube 36 and the sealing ring 38 move in the inner cavity of the liquid guide tube 35, so that the demoulding agent in the liquid storage tank 31 is sucked into the cavity 33 through the second one-way valve 313, and when the core pulling member 2104 is reset, the liquid guide tube 35 and the sealing ring 34 move in the opposite direction in the cavity 33, the fixed tube 36 and the sealing ring 38 move in the opposite direction in the inner cavity of the liquid guide tube 35, so that the demoulding agent can be squeezed from the first one-way valve 37 into the fixed tube 36, the limit plate 39, the bellows 310 and discharged from the drainage hole 311, thereby achieving the effect of applying the demoulding agent to the core pulling member 2104, wherein a chamber is arranged inside the slider 2110, and several drainage holes 311 are connected to the chamber, and the bellows 310 is also connected to the chamber.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A core pulling mechanism for a mold for producing automotive interior parts, comprising a core pulling structure (2) arranged on one side of a movable mold (1), characterized in that: A static mold (11) for use with the dynamic mold (1) is provided on one side of the dynamic mold (1); an injection groove (12) for use with the core-pulling structure (2) is provided on a side of the static mold (11) close to the dynamic mold (1); the number of the injection grooves (12) is several; an injection hole (13) is provided in the inner cavity of the injection groove (12); the core-pulling structure (2) comprises a buffer unit (21); the buffer unit (21) is used to separate the automobile interior decoration part from the dynamic mold (1) and reduce the impact force when the mold is closed; The core pulling structure (2) further comprises a conversion unit (22), wherein the conversion unit (22) is used in conjunction with the buffer unit (21), and the conversion unit (22) is used to reduce the arrangement space of the mold; A coating mechanism (3) is provided on one side of the buffer unit (21); the coating mechanism (3) is used in conjunction with the core-pulling structure (2); the coating mechanism (3) is used to assist in core-pulling.

2. The core-pulling mechanism of a mold for producing automotive interior parts according to claim 1, characterized in that: The buffer unit (21) comprises a movable plate (2101) movably connected to one side of the movable mold (1); a groove (2102) for use with the injection molding groove (12) is provided on one side of the movable plate (2101); a circular ring (2103) is fixedly connected to the inner cavity of the groove (2102); a core pulling member (2104) is slidably connected to the inner cavity of the circular ring (2103); and a placement groove (2104) for use with the groove (2102) is provided on one side of the movable mold (1). 2105), a damping telescopic rod (2106) is fixedly connected to one side of the movable plate (2101), the surface of the damping telescopic rod (2106) is slidably connected to the inner cavity of the movable mold (1), the surface of the damping telescopic rod (2106) is movably sleeved with a first spring (2107), one end of the first spring (2107) is fixedly connected to the damping telescopic rod (2106), and the other end of the first spring (2107) is fixedly connected to the inner wall of the movable mold (1).

3. The core-pulling mechanism of a mold for producing automotive interior parts according to claim 2, characterized in that: The core pulling part (2104) comprises fixed plates (2108) respectively fixedly connected to two sides of the movable mold (1), the movable plate (2101) is located between the two fixed plates (2108) and contacts the fixed plates (2108), a slide groove (2109) is provided on one side of the fixed plate (2108), a slider (2110) is slidably connected to the inner cavity of the slide groove (2109), one side of the slider (2110) is fixedly connected to the ring (2103), the inner cavity of the ring (2103) is slidably connected to three arc rods (2111) and three adjustment rods (2112), the three adjustment rods (2112) and the three arc rods (2111) ) to form a cylindrical shape, one end of the three adjustment rods (2112) and the three arc-shaped rods (2111) are fixedly connected to the guide rod (2113), one end of the six guide rods (2113) are slidably connected to the cylindrical rod (2114), the inner cavity of the cylindrical rod (2114) is slidably connected to the push rod (2115), one end of the push rod (2115) is fixedly connected to the extrusion block (2116), the extrusion block (2116) is arranged in a conical shape, the surface of the extrusion block (2116) is in contact with the arc-shaped rod (2111) and the adjustment rod (2112), and one end of the push rod (2115) is fixedly connected to the mounting plate (2117).

4. The core-pulling mechanism of a mold for producing automotive interior parts according to claim 3, characterized in that: The conversion unit (22) comprises a cylinder (2201) slidably connected to one side of a fixed plate (2108); a toothed plate (2202) is fixedly connected to the telescopic end of the cylinder (2201); a through hole (2203) is provided on one side of the movable mold (1) and the fixed plate (2108); a moving rod (2204) is slidably connected to the inner cavity of the through hole (2203); a threaded sleeve (2205) is rotatably connected to the inner cavity of the moving rod (2204); and the threaded sleeve (2205) is rotatably connected to the inner cavity of the moving rod (2204). 05) is threadedly connected to an inner cavity with two threaded rods (2206), the threads on the surfaces of the two threaded rods (2206) are opposite, the surface of the threaded sleeve (2205) is fixedly connected with teeth (2207) used in conjunction with the tooth plate (2202), the number of the teeth (2207) is several, one side of the mounting plate (2117) is fixedly connected with a mounting block (2208), and one end of the threaded rod (2206) is fixedly connected to one side of the mounting block (2208).

5. The core-pulling mechanism of a mold for producing automotive interior parts according to claim 4, characterized in that: An L-shaped rod (2209) is fixedly connected to one side of the sliding block (2110), and one end of the L-shaped rod (2209) is fixedly connected to the surface of the cylinder (2201).

6. The core-pulling mechanism of a mold for producing automotive interior parts according to claim 3, characterized in that: One end of the guide rod (2113) is fixedly connected to a dovetail block (2118), the surface of the dovetail block (2118) is slidably connected to the inner cavity of the cylindrical rod (2114), one side of the dovetail block (2118) is fixedly connected to a tension spring (2119), and one end of the tension spring (2119) is fixedly connected to the inner wall of the cylindrical rod (2114).

7. The core-pulling mechanism of a mold for producing automotive interior parts according to claim 3, characterized in that: A clamping block (2120) is fixedly connected to one side of the static mold (11), and a clamping groove (2121) for use with the clamping block (2120) is provided on the surface of the cylindrical rod (2114).

8. The core-pulling mechanism of a mold for producing automotive interior parts according to claim 3, characterized in that: The smearing mechanism (3) comprises a liquid storage tank (31) fixedly connected to one side of the mounting plate (2117); a liquid extraction shell (32) is fixedly connected to one side of the liquid storage tank (31); a cavity (33) is provided in the inner cavity of the liquid extraction shell (32); a sealing ring (34) is slidably connected to the inner cavity of the cavity (33); a liquid guide tube (35) is fixedly connected to one side of the sealing ring (34); a fixed tube (36) is slidably connected to the inner cavity of the liquid guide tube (35); one end of the fixed tube (36) is fixedly connected to a first one-way valve (37); a sealing ring (38) is fixedly connected to the surface of the first one-way valve (37); the surface of the sealing ring (38) is in close contact with the inner cavity of the liquid guide tube (35); one end of the fixed tube (36) is fixedly connected to a limiting plate (39); a side of the limiting plate (39) close to the fixing plate (2108) is fixedly connected to the fixing plate (2108). The bottom of the limit plate (39) is fixedly connected to a bellows (310), one end of the bellows (310) is fixedly connected to the top of the slider (2110), the inner cavity of the slider (2110) is provided with a drainage hole (311), the inner wall of the slider (2110) is fixedly connected to a smear rubber block (312), the number of the smear rubber blocks (312) is multiple, the number of the drainage holes (311) is multiple, the drainage holes (311) are connected to the cavity (33) through the bellows (310), the limit plate (39), the fixed pipe (36), and the first one-way valve (37), one side of the liquid extraction shell (32) is fixedly connected to a second one-way valve (313) connected to the cavity (33), one end of the second one-way valve (313) is fixedly connected to a connecting pipe (314), one end of the connecting pipe (314) passes through the inner wall of the liquid storage tank (31).

9. The core-pulling mechanism of a mold for producing automotive interior parts according to claim 8, characterized in that: The inner wall of the liquid storage tank (31) is fixedly connected to a concave block (315), one end of the connecting pipe (314) is fixedly connected to an extension pipe (316), one end of the extension pipe (316) is located at the bottom of the inner wall of the liquid storage tank (31), and the surface of the extension pipe (316) is in contact with the inner wall of the concave block (315).

10. The core-pulling mechanism of a mold for producing automotive interior parts according to claim 8, characterized in that: The top of the liquid storage box (31) is fixedly connected to a liquid inlet pipe (317), and the surface of the liquid inlet pipe (317) is threadedly connected to a sealing cover (318).

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