A forming die for automobile door interior trim panel

Abstract

The present invention discloses a molding die for an automobile door interior panel, and relates to the technical field of automobile door interior panel molding equipment, comprising a molding machine body, wherein the molding machine body comprises a molding rod, wherein the molding rod is slidably connected to the inner wall of the molding machine body through a driving assembly, an upper base plate is fixedly connected to the bottom of the molding rod, a lower base frame is fixedly connected to the surface of the molding machine body, the upper base plate and the lower base frame are arranged opposite to each other, and a mold changing mechanism is arranged on one side of the molding machine body; the mold changing mechanism comprises a replacement unit, wherein the replacement unit is arranged on one side of the molding machine body, and the replacement unit is used for quickly replacing the mold. The molding die for the automobile door interior panel avoids manual intervention through the coordinated use of the replacement unit, the clamping unit and the lower mold positioning unit, realizes automatic mold replacement, shortens mold replacement time, increases convenience of mold replacement, and improves production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of automobile door interior trim panel forming equipment, in particular to an automobile door interior trim panel forming die. Background Art

[0002] Car door interior panels are an important part of car interiors, which are not only related to the appearance and ride comfort of the vehicle, but also involve safety performance and functional practicality. The soft interior panels can protect the metal structure inside the door panels and prevent damage caused by impact or friction. In the event of a side collision, the door interior panels can provide a certain amount of energy absorption protection and reduce the impact on passengers. The interior panels are usually filled with sound-absorbing materials to reduce noise during vehicle driving.

[0003] When molding the soft interior panels of automobiles, the selected materials are first cut into sizes suitable for the molds. If the materials are multi-layered, they need to be laminated. The materials are then placed on the molds, heated and softened, and then pressed into the shape of the molds by pressure. The molded interior panels are taken out after cooling. When molding the interior panels, molds of different shapes are replaced according to the required shapes. The molds are usually positioned in the molding equipment by a large number of bolts. A lot of time is needed to remove the bolts during disassembly, which prolongs the time for changing the molds, increases the inconvenience of changing the molds, and reduces the efficiency of molding the interior panels of automobile doors.

[0004] Combining the above problems, it is found that it is difficult to avoid the above problems at the same time when using the existing automobile door interior panel forming molds on the market, and even if they can be solved, they need to be solved through the cooperation of external tools, so that the desired effect cannot be achieved. Therefore, a automobile door interior panel forming mold is proposed. Summary of the invention

[0005] The object of the present invention is to provide a forming die for an automobile door interior trim panel to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: a molding die for an automobile door interior trim panel, comprising a molding machine body, the molding machine body comprising a molding rod, the molding rod being slidably connected to the inner wall of the molding machine body through a driving assembly, the bottom of the molding rod being fixedly connected to an upper base plate, the surface of the molding machine body being fixedly connected to a lower base frame, the upper base plate and the lower base frame being arranged opposite to each other, and a mold changing mechanism being arranged on one side of the molding machine body;

[0007] The mold changing mechanism includes a replacement unit, which is arranged on one side of the molding machine body and is used to quickly replace the mold;

[0008] The mold changing mechanism includes a clamping unit, which is arranged inside the base plate and is used in conjunction with the replacement unit. The clamping unit is used to position the replaced upper mold at the bottom of the upper base plate;

[0009] The mold changing mechanism also includes a lower mold positioning unit, which is arranged inside the molding machine body and is used in conjunction with the replacement unit and the clamping unit. The lower mold positioning unit is used to position the lower mold in the lower base frame.

[0010] Preferably, the replacement unit comprises a storage box, which is fixedly connected to one side of the molding machine body, the inner cavity of the storage box is fixedly connected with a vertical partition, and a U-shaped rod is slidably connected between the vertical partition and the opposite side of the storage box, and two multiple hydraulic rods are fixedly connected to the inner bottom of the storage box, and the two multiple hydraulic rods are arranged opposite to each other, and the telescopic ends of the two multiple hydraulic rods are respectively slidably connected to the bottom of the U-shaped rod, the surface of the storage box is fixedly connected to a support frame, the inner wall of the support frame is fixedly connected with a first hydraulic rod, the telescopic end of the first hydraulic rod is fixedly connected with a metal frame, and a first electromagnet is slidably sleeved on the surface of the metal frame, one side of the first electromagnet is fixedly connected to the surface of the U-shaped rod, and a plurality of transverse partitions are fixedly connected to one side of the vertical partition, and a mold group is placed on the top of each transverse partition, and two support plates are fixedly connected to the top of the U-shaped rod, and the opposite sides of the two support plates are fixedly connected with second hydraulic rods, and the telescopic ends of the two second hydraulic rods are fixedly connected with blocks, and the blocks are in contact with the inner wall of the mold group.

[0011] Preferably, the inner wall of the storage box is provided with two track grooves, which are arranged opposite to each other, and the track groove includes two vertical grooves and a plurality of horizontal grooves, and the horizontal groove is vertically connected to the two vertical grooves. A guide rod is fixedly connected to the side of the U-shaped rod, and the guide rod is slidably connected to the inner cavity of the track groove. The surface of the guide rod is rotatably connected to a roller through a bearing, and the surface of the roller contacts the inner wall of the track groove.

[0012] Preferably, two sliding grooves are provided at the bottom of the U-shaped rod, the telescopic ends of the two multiple hydraulic rods are fixedly connected to sliding blocks, and the sliding grooves are slidably connected to the surfaces of the sliding blocks.

[0013] Preferably, two guide grooves are provided on the top of the U-shaped rod, and the bottoms of the two clamping blocks are fixedly connected with guide blocks, and the two guide blocks are respectively slidably connected to the inner cavities of the two guide grooves.

[0014] Preferably, the clamping unit includes a clamping groove group, which is opened at the bottom of the upper substrate, and the clamping groove group includes four straight grooves and one dovetail groove. The mold group includes an upper mold and a lower mold. The top of the upper mold is configured to be a convex shape used in conjunction with the straight groove and the dovetail groove. The inner walls of the straight groove and the dovetail groove are fixedly connected with a second electromagnet, and the contact surface between the top of the upper mold and the second electromagnet is fixedly connected with a magnetic block. The upper mold and the lower mold are respectively provided with clamping grooves on both sides, and the inner cavity of the clamping groove is in contact with the surface of the clamping block.

[0015] Preferably, two guide rails are fixedly connected to the bottom of the upper base plate, and the inner walls of the two guide rails are fixedly connected with clamping pads, and the clamping pads are arranged in an inclined shape. The inner wall of the upper mold is provided with four pulley groups, and the pulley groups include a first pulley and a second pulley, and the first pulley and the second pulley are respectively rotatably connected to the inner wall of the upper mold through a rotating shaft, and the diameter of the first pulley is smaller than the diameter of the second pulley. The first pulley and the second pulley are both in contact with the clamping pads, and two retaining grooves are provided on the top of the upper mold, and a limit block used in conjunction with the two retaining grooves is fixedly connected to one side of the upper base plate.

[0016] Preferably, the lower mold positioning unit includes a placement groove opened on the surface of the molding machine body, the placement groove is located directly below the upper base plate, the inner cavity of the placement groove is fixedly connected with a sleeve rod, the top of the sleeve rod is slidably connected with a sleeve, the inner cavity of the sleeve is fixedly connected with a threaded sleeve, the inner cavity of the threaded sleeve is threadedly connected with a threaded rod, one end of the threaded rod penetrates to the bottom of the sleeve rod and is rotatably connected to the inner wall of the sleeve rod, the threaded sleeve is slidably connected to the inner wall of the sleeve rod, three first inclined blocks are fixedly connected to the surface of the threaded sleeve, the top of the sleeve rod is slidably connected with a second inclined block used in conjunction with the first inclined block, one side of the three second inclined blocks is fixedly connected with a positioning plate, the surface of the sleeve is provided with an arc hole used in conjunction with the positioning plate, the bottom of the lower mold is configured to be conical, the bottom of the lower mold is provided with a receiving groove, the sleeve is used in conjunction with the receiving groove, the inner wall of the receiving groove is provided with a positioning groove used in conjunction with the positioning plate, the inner wall of the placement groove is fixedly connected with a motor, and the output end of the motor is fixedly connected to one end of the threaded rod.

[0017] Preferably, two moving grooves are provided on the surface of the sleeve rod, and a moving block used in conjunction with the moving grooves is fixedly connected to the inner wall of the sleeve.

[0018] Preferably, three movable grooves are provided on the top of the sleeve rod, the inner cavity of the movable groove is fixedly connected to a connecting rod, the surface of the connecting rod is slidably connected to a movable block, the top of the movable block is fixedly connected to the bottom of the second inclined block, and a spring is slidably sleeved on the surface of the connecting rod, and both ends of the spring are respectively fixedly connected to one side of the movable block and the inner wall of the movable groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention provides a mold changing mechanism and a replacement unit, so that the mold group required for the molding of the interior trim panel can be stored in a storage box. When the mold group needs to be replaced, the required mold group is pushed by the U-shaped rod in cooperation with the second hydraulic rod, so that the mold group is smoothly embedded in the upper base plate; the clamping unit is provided, so that the upper mold can be stably limited at the bottom of the upper base plate, and the clamping groove group is used in coordination with the convex shape of the top of the upper mold to achieve rapid docking of the mold group; the lower mold positioning unit is provided, so that the lower mold can be automatically positioned so that the lower mold can be quickly positioned in the lower base frame; the replacement unit, the clamping unit and the lower mold positioning unit are used in coordination, so that manual participation is avoided, automatic mold replacement is achieved, and the disassembly and assembly of a large number of bolts are replaced, thereby shortening the mold replacement time, increasing the convenience of mold replacement, and improving the molding efficiency of the automobile door interior trim panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a partial three-dimensional schematic diagram of the replacement unit of the present invention;

[0023] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0024] Figure 4 It is a three-dimensional schematic diagram of the vertical partition and the horizontal partition of the present invention;

[0025] Figure 5 It is a three-dimensional schematic diagram of the multiple hydraulic rod of the present invention;

[0026] Figure 6 It is a schematic diagram of the cooperation between the sliding groove and the sliding block of the present invention;

[0027] Figure 7 It is a three-dimensional disassembled schematic diagram of the clamping unit of the present invention;

[0028] Figure 8 It is a three-dimensional schematic diagram of the pulley block and the clamping pad of the present invention;

[0029] Fig. 9 It is a partial three-dimensional schematic diagram of the lower mold positioning unit of the present invention;

[0030] Fig.10 It is a cross-sectional stereoscopic schematic diagram of the lower mold positioning unit of the present invention;

[0031] Fig.11 for Fig.10 The enlarged schematic diagram of point B in the middle;

[0032] Fig.12 It is a three-dimensional schematic diagram of the moving groove and the moving block of the present invention.

[0033] In the figure: 1, molding machine body; 11, molding rod; 12, upper base plate; 13, lower base frame; 2, mold changing mechanism; 21, replacement unit; 2101, storage box; 2102, vertical partition; 2103, U-shaped rod; 2104, multiple hydraulic rod; 2105, support frame; 2106, first hydraulic rod; 2107, horizontal partition; 2108, mold group; 2109, support plate; 2110, second hydraulic rod Pressure rod; 2111, clamping block; 2112, track groove; 2113, vertical groove; 2114, horizontal groove; 2115, guide rod; 2116, roller; 2117, sliding groove; 2118, sliding block; 2119, guide groove; 2120, guide block; 2121, metal frame; 2122, first electromagnet; 22, clamping unit; 2201, clamping groove group; 2202, straight groove; 2203, swallow tail groove; 2204, upper mold; 2205, lower mold; 2206, second electromagnet; 2207, magnetic block; 2208, slot; 2209, guide rail; 2210, clamping pad; 2211, stop groove; 2212, limit block; 2213, pulley block; 2214, first pulley; 2215, second pulley; 23, lower mold positioning unit; 2301, placement groove; 2302, sleeve rod; 23 03, sleeve; 2304, threaded sleeve; 2305, threaded rod; 2306, first oblique block; 2307, second oblique block; 2308, positioning plate; 2309, arc hole; 2310, storage slot; 2311, positioning slot; 2312, motor; 2313, moving slot; 2314, moving block; 2315, movable slot; 2316, connecting rod; 2317, movable block; 2318, spring. 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] Example 1: Please refer to Figure 1-Figure 12The present invention provides a technical solution: a molding die for an automobile door interior trim panel, comprising a molding machine body 1, the molding machine body 1 comprising a molding rod 11, the molding rod 11 is slidably connected to the inner wall of the molding machine body 1 through a driving assembly, the driving assembly is a hydraulic cylinder, and the extension and retraction of the extension end of the hydraulic cylinder provides the molding rod 11 with a driving force for rising and falling, the bottom of the molding rod 11 is fixedly connected with an upper base plate 12, the surface of the molding machine body 1 is fixedly connected with a lower base frame 13, the upper base plate 12 and the lower base frame 13 are arranged opposite to each other, and a mold changing mechanism 2 is arranged on one side of the molding machine body 1;

[0036] The mold changing mechanism 2 includes a changing unit 21 . The changing unit 21 is disposed on one side of the molding machine body 1 . The changing unit 21 is used for quickly changing the mold.

[0037] As a further limitation of the mold changing mechanism 2 of the present invention, please refer to Figure 1-Figure 6 The replacement unit 21 includes a storage box 2101, which is fixedly connected to one side of the molding machine body 1. The inner cavity of the storage box 2101 is fixedly connected with a vertical partition 2102, and a U-shaped rod 2103 is slidably connected between the vertical partition 2102 and the opposite side of the storage box 2101. Two multiple hydraulic rods 2104 are fixedly connected to the inner bottom of the storage box 2101. The two multiple hydraulic rods 2104 are arranged opposite to each other, and the telescopic ends of the two multiple hydraulic rods 2104 are respectively slidably connected to the bottom of the U-shaped rod 2103. A support frame 2105 is fixedly connected to the surface of the storage box 2101, and a first hydraulic rod 2106 is fixedly connected to the inner wall of the support frame 2105. The telescopic end of the first hydraulic rod 2106 is fixedly connected to a metal frame 2121. A first electromagnet 2122 is slidably sleeved on the surface of the metal frame 2121. One side of the first electromagnet 2122 is fixedly connected to the surface of the U-shaped rod 2103. The vertical partition 2102 A plurality of transverse partitions 2107 are fixedly connected to one side, and a mold group 2108 is placed on the top of each transverse partition 2107. Two support plates 2109 are fixedly connected to the top of the U-shaped rod 2103. The opposite sides of the two support plates 2109 are fixedly connected to the second hydraulic rods 2110. The telescopic ends of the two second hydraulic rods 2110 are fixedly connected to the clamping blocks 2111, and the clamping blocks 2111 are in contact with the inner wall of the mold group 2108. By setting up the replacement unit 21, the mold group 2108 required for the molding of the interior panel can be stored in the storage box 2101. When the mold group 2108 needs to be replaced, the required mold group 2108 is pushed by the U-shaped rod 2103 and the second hydraulic rod 2110, so that the mold group 2108 is smoothly embedded in the upper base plate 12, thereby realizing automatic replacement of the mold, avoiding manual participation, saving the time of mold replacement, increasing the convenience of mold replacement, and improving production efficiency.

[0038] The inner wall of the storage box 2101 is provided with two track grooves 2112, which are arranged opposite to each other. The track groove 2112 includes two vertical grooves 2113 and a plurality of horizontal grooves 2114, and the horizontal grooves 2114 are vertically connected to the two vertical grooves 2113. A guide rod 2115 is fixedly connected to the side of the U-shaped rod 2103, and the guide rod 2115 is slidably connected to the inner cavity of the track groove 2112. The surface of the guide rod 2115 is rotatably connected to a roller 2116 through a bearing, and the surface of the roller 2116 is connected to the track groove 2112. The inner wall of the track groove 2112 is in contact with the guide rod 2115; by setting the track groove 2112 and the guide rod 2115, the transverse groove 2114 can guide the U-shaped rod 2103 laterally, and the vertical groove 2113 can guide the U-shaped rod 2103 vertically, thereby increasing the stability of the U-shaped rod 2103 during lateral and vertical movement. By setting the roller 2116, the friction of the guide rod 2115 when moving in the track groove 2112 can be reduced through the rolling of the roller 2116, thereby improving the smoothness of the U-shaped rod 2103 during movement.

[0039] Two sliding grooves 2117 are provided at the bottom of the U-shaped rod 2103, and the telescopic ends of the two multiple hydraulic rods 2104 are fixedly connected with sliding blocks 2118, and the sliding grooves 2117 are slidably connected to the surfaces of the sliding blocks 2118; by setting the sliding grooves 2117 and the sliding blocks 2118 for use in conjunction, the sliding of the U-shaped rod 2103 at the telescopic end of the multiple hydraulic rod 2104 can be guided, thereby ensuring the stability of the U-shaped rod 2103 when sliding at the telescopic end of the multiple hydraulic rod 2104.

[0040] Two guide grooves 2119 are provided on the top of the U-shaped rod 2103, and guide blocks 2120 are fixedly connected to the bottoms of the two clamping blocks 2111, and the two guide blocks 2120 are slidably connected to the inner cavities of the two guide grooves 2119 respectively; by setting the guide grooves 2119 and the guide blocks 2120 for coordinated use, the moving trajectory of the guide blocks 2120 can be guided by the guide grooves 2119, thereby ensuring the stability of the clamping block 2111 during movement, and by limiting the guide block 2120 by the guide grooves 2119, the limiting of the clamping block 2111 is achieved.

[0041] The specific implementation of this embodiment is as follows: the device is applied to the automated production line of automobile door interior trim panels. A plurality of mold groups 2108 are stored in the storage box 2101. The shapes pressed and molded by each mold group 2108 are different. When the mold group 2108 needs to be replaced, the molding rod 11 is first controlled by an external power supply to drive the upper base plate 12 to move downward, and the limit of the lower mold positioning unit 23 is cancelled, so that the mold groups 2108 are combined together. In the initial state, the telescopic end of the multiple hydraulic rod 2104 and the telescopic end of the first hydraulic rod 2106 are in the maximum contraction state, that is, at this time, the U-shaped rod 2103 is located at the bottom of the horizontal groove 2114 port of the storage box 2101, and the first electromagnet 2122 is started by an external power supply. The first electromagnet The magnetism of 2122 makes itself closely adsorbed with the metal frame 2121, which is made of iron. Then, the first hydraulic rod 2106 is started by an external power supply. The first hydraulic rod 2106 is positioned on the surface of the storage box 2101 through the support frame 2105. The extension of the telescopic end of the first hydraulic rod 2106 pushes the metal frame 2121, the first electromagnet 2122 and the U-shaped rod 2103 to move in the direction of the upper substrate 12. At this time, the U-shaped rod 2103 moves in the transverse groove 2114 through the guide rod 2115 and the roller 2116 for transverse guidance. When the roller 2116 moves to the end of the transverse groove 2114, the U-shaped rod 2103 drives the block 2111 on its top to move to the set position. The first hydraulic rod 2106 is pushed to move to the upper substrate 12. 6 stops extending further. At this time, the telescopic ends of the two second hydraulic rods 2110 are controlled to extend through an external power supply. The second hydraulic rod 2110 is positioned on the top of the U-shaped rod 2103 through the support plate 2109, and the two clamping blocks 2111 are pushed to embed into the inner wall of the mold group 2108. The clamping blocks 2111 are guided by the guide blocks 2120 and the guide grooves 2119 when moving, so as to clamp the mold group 2108. At this time, the second hydraulic rod 2110 is stopped from extending further. At this time, the two multiple hydraulic rods 2104 are started, and the forming rod 11 is driven to move upward synchronously. After the multiple hydraulic rods 2104 are started, their telescopic ends are extended to push the U-shaped rod 2103 to move upward. The U-shaped rod 2103 is moved upward through the guide rods 2115 and the rollers 2116. The storage box 2101 moves in the vertical groove 2113 on the outer side, which increases the stability of the U-shaped rod 2103 when it moves vertically. At this time, the first electromagnet 2122 is in a power-off state and has no magnetism. When the U-shaped rod 2103 moves vertically, it drives the first electromagnet 2122 to move vertically on the surface of the metal frame 2121. When the U-shaped rod 2103 moves vertically to the transverse groove 2114 port corresponding to the vacant transverse partition 2107 in the storage box 2101, the mold group 2108 moves there synchronously. At this time, the first electromagnet 2122 is restarted to achieve close adsorption of the metal frame 2121 and the first electromagnet 2122, and the clamping unit 22 cancels the clamping of the upper base plate 12 on the mold group 2108, and then the first hydraulic rod 2106 is started.The telescopic end of the first hydraulic rod 2106 begins to be retracted, and the mold group 2108 is driven to gradually leave the inner cavity of the upper base plate 12 through the U-shaped rod 2103, the second hydraulic rod 2110 and the clamping block 2111, and begins to move toward the storage box 2101 until the mold group 2108 is moved to the corresponding transverse partition 2107. At this time, the guide rod 2115 and the roller 2116 move to the vertical groove 2113 on the inner side, and the clamping of the mold group 2108 by the second hydraulic rod 2110 is cancelled. When the U-shaped rod 2103 moves horizontally, the first electromagnet 2122 is in the starting state, and when the U-shaped rod 2103 moves vertically, the first electromagnet 2122 is in the non-working state. Then, the external power supply is controlled The telescopic ends of the two multiple hydraulic rods 2104 are controlled to extend and retract, driving the U-shaped rod 2103 to move vertically, until the U-shaped rod 2103 moves vertically to the port of the transverse groove 2114 corresponding to the required mold group 2108, and the required mold group 2108 is clamped by the clamping block 2111 controlled by the two second hydraulic rods 2110, and then pushed by extending the telescopic end of the first hydraulic rod 2106. Before this, the upper base plate 12 has been vertically moved to the corresponding height by the forming rod 11, and then the mold group 2108 is clamped at the bottom of the upper base plate 12 by the clamping unit 22, thereby realizing the automatic replacement of the mold group 2108, avoiding manual participation, and reducing the time for changing molds.

[0042] Example 2: Please refer to Figure 7 and Figure 8 The present invention provides a technical solution: a car door interior panel forming mold. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The mold changing mechanism 2 includes a clamping unit 22, which is arranged inside the base plate. The clamping unit 22 is used in conjunction with the replacement unit 21. The clamping unit 22 is used to position the replaced upper mold at the bottom of the upper base plate 12.

[0043] As a further limitation of the mold changing mechanism 2 of the present invention, the clamping unit 22 includes a clamping groove group 2201, the clamping groove group 2201 is opened at the bottom of the upper base plate 12, the clamping groove group 2201 includes four straight grooves 2202 and a dovetail groove 2203, the mold group 2108 includes an upper mold 2204 and a lower mold 2205, the top of the upper mold 2204 is set to be convex for use with the straight groove 2202 and the dovetail groove 2203, the inner walls of the straight groove 2202 and the dovetail groove 2203 are fixedly connected with a second electromagnet 2206, and the upper mold 220 The contact surface between the top and the second electromagnet 2206 is fixedly connected with a magnetic block 2207. The upper mold 2204 and the lower mold 2205 are provided with a clamping groove 2208 on both sides. The inner cavity of the clamping groove 2208 contacts the surface of the clamping block 2111. By providing the clamping unit 22, the upper mold 2204 can be stably limited at the bottom of the upper substrate 12, and the clamping groove group 2201 and the convex shape on the top of the upper mold 2204 are used in combination to achieve rapid docking of the mold group 2108, thereby accelerating the replacement speed of the mold and improving the production efficiency.

[0044] The bottom of the upper substrate 12 is fixedly connected with two guide rails 2209, and the inner walls of the two guide rails 2209 are fixedly connected with clamping pads 2210, which are arranged in an inclined shape. The inner wall of the upper mold 2204 is provided with four pulley groups 2213, and the pulley group 2213 includes a first pulley 2214 and a second pulley 2215. The first pulley 2214 and the second pulley 2215 are respectively rotatably connected to the inner wall of the upper mold 2204 through a rotating shaft. The diameter of the first pulley 2214 is smaller than the diameter of the second pulley 2215, and the first pulley 2214 and the second pulley 2215 are both in contact with the clamping pad 2210. Two retaining grooves 2211 are provided on the top of the upper mold 2204, and a limit block 2212 used in conjunction with the two retaining grooves 2211 is fixedly connected to one side of the upper substrate 12; by setting the guide rail 2209, the clamping pad 2210 and the pulley group 2213, the friction between the upper mold 2204 and the upper substrate 12 is increased, thereby increasing the stability of the upper mold 2204 after installation; by setting the retaining groove 2211 and the limit block 2212, the maximum distance that the upper mold 2204 is embedded in the upper substrate 12 can be limited through the contact between the retaining groove 2211 and the limit block 2212.

[0045] The specific implementation of this embodiment is as follows: when the upper mold 2204 is docked with the upper substrate 12, the U-shaped rod 2103 pushes to provide a lateral driving force for the upper mold 2204. Before embedding, the clamping groove group 2201 and the convex shape on the top of the upper mold 2204 are in a one-to-one corresponding state. The upper mold 2204 is pushed to move horizontally by the lateral movement of the U-shaped rod 2103. When the upper mold 2204 moves horizontally, the convex shape on its top is correspondingly embedded in the straight groove 2202 and the dovetail groove 2203. When one end of the retaining groove 2211 contacts one side of the limit block 2212, the U-shaped rod 2103 stops moving horizontally. At this time, the second electromagnet 2206 is started by an external power supply. The strong magnetism generated by the second electromagnet 2206 The magnetic block 2207 is adsorbed, and the first pulley 2214 and the second pulley 2215 both follow the movement of the upper mold 2204, moving from the thin end to the thick end of the clamping pad 2210. As the thickness of the clamping pad 2210 increases, the friction between the first pulley 2214 and the clamping pad 2210 gradually increases. The clamping pad 2210 is made of silicone material, and the diameter of the second pulley 2215 is larger than the diameter of the first pulley 2214, so that the second pulley 2215 and the thin end of the clamping pad 2210 form a sufficiently large friction, thereby increasing the stability of the connection between the upper mold 2204 and the upper substrate 12. Subsequently, the mold group 2108 is moved down to the lowest position by moving the molding rod 11 downward and cooperating with the contraction of the multiple hydraulic rods 2104.

[0046] Example 3: Please refer to Figure 9-12 The present invention provides a technical solution: a car door interior panel molding die. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The mold changing mechanism 2 also includes a lower mold positioning unit 23, which is arranged inside the molding machine body 1. The lower mold positioning unit 23 is used in conjunction with the replacement unit 21 and the clamping unit 22. The lower mold positioning unit 23 is used to position the lower mold in the lower base frame 13.

[0047] As a further limitation of the mold changing mechanism 2 of the present invention, the lower mold positioning unit 23 includes a placement groove 2301 opened on the surface of the molding machine body 1, the placement groove 2301 is located directly below the upper base plate 12, the inner cavity of the placement groove 2301 is fixedly connected with a sleeve rod 2302, the top of the sleeve rod 2302 is slidably connected with a sleeve tube 2303, the inner cavity of the sleeve tube 2303 is fixedly connected with a threaded sleeve 2304, the inner cavity of the threaded sleeve 2304 is threadedly connected with a threaded rod 2305, one end of the threaded rod 2305 passes through the bottom of the sleeve rod 2302 and is rotatably connected to the inner wall of the sleeve rod 2302, the threaded sleeve 2304 is slidably connected to the inner wall of the sleeve rod 2302, the surface of the threaded sleeve 2304 is fixedly connected with three first inclined blocks 2306, and the top of the sleeve rod 2302 is slidably connected with a third inclined block 2306 used in conjunction with the first inclined block 2306 Two inclined blocks 2307, one side of the three second inclined blocks 2307 is fixedly connected with a positioning plate 2308, the surface of the sleeve 2303 is provided with an arc hole 2309 used in conjunction with the positioning plate 2308, the bottom of the lower mold 2205 is set to be conical, the bottom of the lower mold 2205 is provided with a storage groove 2310, the sleeve 2303 is used in conjunction with the storage groove 2310, the inner wall of the storage groove 2310 is provided with a positioning groove 2311 used in conjunction with the positioning plate 2308, the inner wall of the placement groove 2301 is fixedly connected with a motor 2312, and the output end of the motor 2312 is fixedly connected to one end of the threaded rod 2305; by setting the lower mold positioning unit 23, the automatic positioning of the lower mold 2205 can be realized, so that the lower mold 2205 can be quickly positioned in the lower base frame 13, thereby improving the mold replacement speed.

[0048] Two movable grooves 2313 are provided on the surface of the sleeve rod 2302, and a movable block 2314 used in conjunction with the movable grooves 2313 is fixedly connected to the inner wall of the sleeve 2303; by setting the movable grooves 2313 and the movable blocks 2314 for use in conjunction with each other, the sleeve 2303 is guided to move vertically on the surface of the sleeve rod 2302, and the sleeve 2303 and the threaded sleeve 2304 are prevented from rotating with the threaded rod 2305.

[0049] Three movable grooves 2315 are provided at the top of the sleeve rod 2302, and the inner cavity of the movable groove 2315 is fixedly connected with a connecting rod 2316, and the surface of the connecting rod 2316 is slidably connected with a movable block 2317, and the top of the movable block 2317 is fixedly connected to the bottom of the second inclined block 2307, and the surface of the connecting rod 2316 is slidably sleeved with a spring 2318, and the two ends of the spring 2318 are respectively fixedly connected to one side of the movable block 2317 and the inner wall of the movable groove 2315; by setting the movable groove 2315, the connecting rod 2316 and the movable block 2317 are used in coordination, the moving trajectory of the second inclined block 2307 can be guided, and the automatic resetting of the second inclined block 2307 can be achieved by setting the spring 2318.

[0050] The specific implementation of this embodiment is as follows: when the mold set 2108 moves down to the lowest point following the forming rod 11 and the U-shaped rod 2103, the sleeve 2303 is embedded in the inner cavity of the receiving groove 2310 at the bottom of the lower mold 2205, and the embedding of the block 2111 and the groove 2208 is cancelled, so that the upper mold 2204 and the lower mold 2205 are separated, and the output end of the motor 2312 drives the threaded rod 2305 to rotate by the external electric starter motor 2312, and the rotation of the threaded rod 2305 drives the threaded sleeve 2304 and the threaded sleeve 2305 to rotate. The sleeve 2303 fixedly connected to the sleeve 2304 moves downward. Before this, the sleeve 2303 is at the highest point in the vertical direction, and the top is flush with the top of the lower base frame 13 to ensure stable docking with the lower mold 2205. When the sleeve 2303 moves downward, the moving groove 2313 cooperates with the moving block 2314 to provide vertical guidance, thereby increasing the stability of the sleeve 2303 when it moves vertically on the surface of the sleeve rod 2302. As the threaded sleeve 2304 moves downward, the first inclined block 2306 on its surface moves downward, and the first inclined block 2306 moves downward to connect with the second inclined block 2307. When the sleeve 2303 is inserted into the receiving groove 2310, the arc hole 2309 is connected with the positioning groove 2311, and the inner bottom wall of the arc hole 2309 is lower than the inner bottom wall of the positioning groove 2311, which provides sufficient distance for the lateral movement of the second oblique block 2307. When it moves down to the lowest point, the second inclined block 2307 has the maximum pushing distance, so that the second inclined block 2307 pushes the positioning plate 2308 through the arc hole 2309 and embeds into the inner cavity of the positioning groove 2311, so as to realize the rapid positioning of the lower mold 2205. The contact surface between the inner cavity of the positioning groove 2311 and the positioning plate 2308 is a gradually shrinking shape. The shape of the positioning plate 2308 matches the shape of the positioning groove 2311, and the inner wall of the positioning groove 2311 is provided with an anti-slip pad, which increases the stability of the positioning plate 2308 in positioning the lower mold 2205.

[0051] 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.

[0052] 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 molding die for an automobile door interior panel, comprising a molding machine body (1), the molding machine body (1) comprising a molding rod (11), the molding rod (11) being slidably connected to an inner wall of the molding machine body (1) via a driving assembly, characterized in that: The bottom of the molding rod (11) is fixedly connected to an upper base plate (12), the surface of the molding machine body (1) is fixedly connected to a lower base frame (13), the upper base plate (12) and the lower base frame (13) are arranged opposite to each other, and a mold changing mechanism (2) is arranged on one side of the molding machine body (1); The mold changing mechanism (2) comprises a replacement unit (21), wherein the replacement unit (21) is arranged on one side of the molding machine body (1), and the replacement unit (21) is used to quickly replace the mold; The mold changing mechanism (2) comprises a clamping unit (22), the clamping unit (22) being arranged inside the base plate, the clamping unit (22) being used in conjunction with the replacement unit (21), the clamping unit (22) being used to position the replaced upper mold at the bottom of the upper base plate (12); The die changing mechanism (2) further comprises a lower die positioning unit (23), the lower die positioning unit (23) being arranged inside the molding machine body (1), the lower die positioning unit (23) being used in conjunction with the replacement unit (21) and the clamping unit (22), the lower die positioning unit (23) being used to position the lower die inside the lower base frame (13); The replacement unit (21) comprises a storage box (2101), wherein the storage box (2101) is fixedly connected to one side of a molding machine body (1), the inner cavity of the storage box (2101) is fixedly connected to a vertical partition (2102), a U-shaped rod (2103) is slidably connected between the vertical partition (2102) and the opposite side of the storage box (2101), the inner bottom of the storage box (2101) is fixedly connected to two multiple hydraulic rods (2104), the two multiple hydraulic rods (2104) are arranged opposite to each other, the telescopic ends of the two multiple hydraulic rods (2104) are respectively slidably connected to the bottom of the U-shaped rod (2103), the surface of the storage box (2101) is fixedly connected to a support frame (2105), the inner wall of the support frame (2105) is fixedly connected to a first hydraulic rod (2106), and the first The telescopic end of the hydraulic rod (2106) is fixedly connected to a metal frame (2121); a first electromagnet (2122) is slidably sleeved on the surface of the metal frame (2121); one side of the first electromagnet (2122) is fixedly connected to the surface of the U-shaped rod (2103); one side of the vertical partition (2102) is fixedly connected to a plurality of transverse partitions (2107); a mold group (2108) is placed on the top of each transverse partition (2107); two support plates (2109) are fixedly connected to the top of the U-shaped rod (2103); opposite sides of the two support plates (2109) are fixedly connected to second hydraulic rods (2110); the telescopic ends of the two second hydraulic rods (2110) are fixedly connected to clamping blocks (2111); the clamping blocks (2111) are in contact with the inner wall of the mold group (2108).

2. The automobile door interior trim molding die according to claim 1, characterized in that: The inner side wall of the storage box (2101) is provided with two track grooves (2112), the two track grooves (2112) are arranged opposite to each other, the track groove (2112) comprises two vertical grooves (2113) and a plurality of horizontal grooves (2114), the horizontal grooves (2114) are vertically connected to the two vertical grooves (2113), the side of the U-shaped rod (2103) is fixedly connected with a guide rod (2115), the guide rod (2115) is slidably connected to the inner cavity of the track groove (2112), the surface of the guide rod (2115) is rotatably connected with a roller (2116) via a bearing, and the surface of the roller (2116) contacts the inner wall of the track groove (2112).

3. The automobile door interior trim molding die according to claim 1, characterized in that: Two sliding grooves (2117) are provided at the bottom of the U-shaped rod (2103), and the telescopic ends of the two multi-hydraulic rods (2104) are fixedly connected to sliding blocks (2118), and the sliding grooves (2117) are slidably connected to the surfaces of the sliding blocks (2118).

4. The automobile door interior trim molding die according to claim 1, characterized in that: Two guide grooves (2119) are provided at the top of the U-shaped rod (2103), and guide blocks (2120) are fixedly connected to the bottoms of the two clamping blocks (2111), and the two guide blocks (2120) are respectively slidably connected to the inner cavities of the two guide grooves (2119).

5. The automobile door interior trim molding die according to claim 1, characterized in that: The clamping unit (22) comprises a clamping slot group (2201), the clamping slot group (2201) is opened at the bottom of the upper base plate (12), the clamping slot group (2201) comprises four straight slots (2202) and a dovetail slot (2203), the mold group (2108) comprises an upper mold (2204) and a lower mold (2205), the top of the upper mold (2204) is configured to cooperate with the straight slots (2202) and the dovetail slot (2203). The convex shape used is that the inner walls of the straight groove (2202) and the dovetail groove (2203) are fixedly connected with the second electromagnet (2206), the contact surface between the top of the upper mold (2204) and the second electromagnet (2206) is fixedly connected with a magnetic block (2207), and the upper mold (2204) and the lower mold (2205) are respectively provided with a card slot (2208), and the inner cavity of the card slot (2208) is in contact with the surface of the card block (2111).

6. The automobile door interior trim molding die according to claim 5, characterized in that: The bottom of the upper base plate (12) is fixedly connected to two guide rails (2209), the inner walls of the two guide rails (2209) are fixedly connected to clamping pads (2210), the clamping pads (2210) are arranged in an inclined shape, and the inner wall of the upper mold (2204) is provided with four pulley groups (2213), the pulley group (2213) includes a first pulley (2214) and a second pulley (2215), the first pulley (2214) and the second pulley (2215) are respectively provided with a first pulley (2214) and a second pulley (2215). ) are rotatably connected to the inner wall of the upper mold (2204) through a rotating shaft, the diameter of the first pulley (2214) is smaller than the diameter of the second pulley (2215), the first pulley (2214) and the second pulley (2215) are both in contact with the clamping pad (2210), the top of the upper mold (2204) is provided with two retaining grooves (2211), and one side of the upper base plate (12) is fixedly connected with a limit block (2212) used in conjunction with the two retaining grooves (2211).

7. The automobile door interior trim molding die according to claim 5, characterized in that: The lower mold positioning unit (23) comprises a placement groove (2301) provided on the surface of the molding machine body (1), the placement groove (2301) being located directly below the upper base plate (12), the inner cavity of the placement groove (2301) being fixedly connected to a sleeve rod (2302), the top of the sleeve rod (2302) being slidably connected to a sleeve tube (2303), the inner cavity of the sleeve tube (2303) being fixedly connected to a threaded sleeve (2304), the inner cavity of the threaded sleeve (2304) being threadedly connected to a threaded rod (2305), one end of the threaded rod (2305) passing through the bottom of the sleeve rod (2302) and being rotatably connected to the inner wall of the sleeve rod (2302), the threaded sleeve (2304) being slidably connected to the inner wall of the sleeve rod (2302), the surface of the threaded sleeve (2304) being fixedly connected to three first inclined blocks (2306), the sleeve rod (2302) The top of the lower mold (2205) is slidably connected to a second inclined block (2307) used in conjunction with the first inclined block (2306), one side of each of the three second inclined blocks (2307) is fixedly connected to a positioning plate (2308), the surface of the sleeve (2303) is provided with an arc hole (2309) used in conjunction with the positioning plate (2308), the bottom of the lower mold (2205) is configured to be conical, the bottom of the lower mold (2205) is provided with a receiving groove (2310), the sleeve (2303) is used in conjunction with the receiving groove (2310), the inner wall of the receiving groove (2310) is provided with a positioning groove (2311) used in conjunction with the positioning plate (2308), the inner wall of the placement groove (2301) is fixedly connected to a motor (2312), and the output end of the motor (2312) is fixedly connected to one end of the threaded rod (2305).

8. The automobile door interior trim molding die according to claim 7, characterized in that: Two movable grooves (2313) are provided on the surface of the sleeve rod (2302), and a movable block (2314) for use in conjunction with the movable grooves (2313) is fixedly connected to the inner wall of the sleeve (2303).

9. The automobile door interior trim molding die according to claim 7, characterized in that: The top of the sleeve rod (2302) is provided with three movable grooves (2315), the inner cavity of the movable groove (2315) is fixedly connected to a connecting rod (2316), the surface of the connecting rod (2316) is slidably connected to a movable block (2317), the top of the movable block (2317) is fixedly connected to the bottom of the second inclined block (2307), the surface of the connecting rod (2316) is slidably sleeved with a spring (2318), and the two ends of the spring (2318) are respectively fixedly connected to one side of the movable block (2317) and the inner wall of the movable groove (2315).

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