Automobile plastic part forming and demolding mechanism

Abstract

The utility model discloses an automobile plastic part forming and demolding mechanism, which relates to the technical field of injection molds and comprises a worktable, a lower mold is fixedly connected to the top of the worktable, a support is fixedly connected to one side of the top of the worktable, and a first cylinder is fixedly mounted at the top end of the support. The bottom end of the first air cylinder is fixedly connected with an upper mold, a jacking mechanism is installed in the lower mold, and a separating mechanism is installed on one side of the top of the upper mold. And air can be blown between the automobile plastic part and the upper mold in the lifting process of the upper mold, so that the automobile plastic part is separated from the upper mold.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is a kind of automobile plastic parts forming demolding mechanism. BACKGROUND

[0002] The automobile plastic parts are the plastic parts of automobile, which are all plastic parts except the frame of automobile, and the existing demolding mechanism for forming automobile plastic parts is provided with a corresponding stripper plate, which is used to push out the formed plastic upward for taking material. According to the search, a patent with the patent number CN220242290U discloses a demolding mechanism for forming automobile plastic parts, which comprises a processing table, a lower mold fixedly installed at the middle of the top end of the processing table, a top plate movably installed at the middle of the bottom end of the inner cavity of the lower mold, a push frame movably installed at the back left side of the lower mold on the top of the processing table, and a moving groove formed at the lower right side of the push frame on the top of the processing table.

[0003] The above technical solution sets the push frame, the driving motor and the collection frame, which facilitates the demolding of the formed automobile plastic parts and the subsequent taking. However, when in use, the water gate material connected with the automobile plastic parts is often formed in the injection hole, which affects the demolding of the automobile plastic parts from the upper mold, thereby affecting the normal demolding effect. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a demolding mechanism for forming automobile plastic parts, which solves the problems raised in the background art.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a demolding mechanism for forming automobile plastic parts, comprising a workbench, a lower mold fixedly connected to the top of the workbench, a bracket fixedly connected to one side of the top of the workbench, a first air cylinder fixedly installed at the top end of the bracket, an upper mold fixedly connected to the bottom end of the first air cylinder, a lifting mechanism installed in the lower mold, a separation mechanism installed on one side of the top of the upper mold, a rectangular injection hole formed on one side of the top of the upper mold, and a cutting mechanism installed through the outer surface of the upper mold and matched with the rectangular injection hole.

[0006] The separation mechanism comprises a gas hole formed on the upper surface of the upper mold, a connecting pipe fixedly connected to the gas hole on the upper surface of the upper mold, a third air cylinder fixedly installed at the top end of the connecting pipe, a sealing column fixedly connected to the bottom end of the third air cylinder and matched with the gas hole, and a gas pump fixedly communicated on one side of the connecting pipe.

[0007] Preferably, the jacking mechanism comprises a top plate embedded and slidingly connected in the lower mold, a T-shaped rod slidingly connected with the lower mold is fixedly connected to the bottom end of the top plate, springs are fixedly connected between the T-shaped rod and the lower mold, and a second air cylinder matched with the T-shaped rod is fixedly installed on the lower surface of the workbench, so that the formed automobile plastic part can be jacked up.

[0008] Preferably, an electric push rod is fixedly installed on one side of the upper surface of the workbench, and a push plate is fixedly connected to one end of the electric push rod, so that the automobile plastic part can be pushed.

[0009] Preferably, the cutting mechanism comprises a mounting groove formed in one side of the inner wall of the rectangular injection molding hole, a fourth air cylinder is fixedly connected to one side of the mounting groove, and a cutting knife is fixedly connected to one end of the fourth air cylinder, so that the water gate material in the rectangular injection molding hole can be conveniently cut off.

[0010] Preferably, a plugging block matched with the rectangular injection molding hole is arranged in the mounting groove, protrusions are fixedly connected to the outer surface of the plugging block on both sides, travel grooves matched with the protrusions are formed in the inner walls of the mounting groove on both sides, so that one side of the mounting groove can be conveniently plugged to prevent material from entering the mounting groove during injection molding.

[0011] Preferably, a fifth air cylinder is fixedly installed through the top of the mounting groove, a T-shaped block is fixedly connected to the bottom end of the fifth air cylinder, and a T-shaped groove matched with the T-shaped block is formed in the top of the plugging block, so that the plugging block can be conveniently moved.

[0012] The utility model provides a kind of automobile plastic part forming demolding mechanism. With the following beneficial effects:

[0013] 1, the automobile plastic part forming demolding mechanism, by the separation mechanism being arranged, in the process of upper die lifting, third air cylinder operation drives sealing column to move out of air hole, then air pump operation can be inflated to air hole, can be blown to automobile plastic part and upper die, to separate automobile plastic part and upper die.

[0014] 2, the automobile plastic part forming demolding mechanism, by the cutting mechanism being arranged, fourth air cylinder can be moved after injection molding is completed, cutting knife can be cut off in the rectangular injection molding hole, convenient for demolding. DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model;

[0016] Figure 2 It is the structure schematic view of the jacking mechanism of the utility model;

[0017] Figure 3 It is the internal structure schematic view of the upper die of the utility model;

[0018] Figure 4 It is the structure schematic view of the plugging block and the fifth cylinder of the utility model;

[0019] Figure 5 It is the internal structure schematic view of the installation groove.

[0020] In the drawing, 1, workbench;2, lower mould;3, support;4, first cylinder;5, upper mould;6, jacking mechanism;61, top plate;62, T-shaped rod;63, spring;64, second cylinder;7, separation mechanism;71, connecting pipe;72, third cylinder;73, sealing column;74, air pump;8, rectangular injection hole;9, cutting mechanism;91, installation groove;92, fourth cylinder;93, cutting knife;94, plugging block;95, protruding block;96, stroke groove;97, fifth cylinder;98, T-shaped block;10, electric push rod;11, push plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0022] Embodiment one, as shown in Figure 1 and Figure 2 A kind of automobile plastic piece forming stripping mechanism, including workbench 1, the top of workbench 1 is fixedly connected with lower mould 2, the top of workbench 1 one side is fixedly connected with support 3, the top of support 3 is fixedly installed with first cylinder 4, the bottom of first cylinder 4 is fixedly connected with upper mould 5, lower mould 2 is installed with jacking mechanism 6 in its interior, jacking mechanism 6 includes top plate 61 embeddedly slidingly connected in the interior of lower mould 2, the bottom of top plate 61 is fixedly connected with T-shaped rod 62 slidingly connected with the interior of lower mould 2, spring 63 is fixedly connected between T-shaped rod 62 and lower mould 2, the lower surface of workbench 1 is fixedly installed with second cylinder 64 matched with T-shaped rod 62. The upper surface of workbench 1 one side is fixedly installed with electric push rod 10, one end of electric push rod 10 is fixedly connected with push plate 11.

[0023] When upper mould 5 rises, second cylinder 64 can be started to lift top plate 61 and the automobile plastic piece formed by T-shaped rod 62, electric push rod 10 can drive push plate 11 to move, and the automobile plastic piece formed can be pushed away.

[0024] Embodiment two, as shown in Figure 1 and Figure 3As shown in the drawings, the top side of the upper die 5 is provided with a separation mechanism 7, which comprises a gas hole formed in the upper surface of the upper die 5, and the upper surface of the upper die 5 is fixedly connected with a connecting pipe 71 in communication with the gas hole, the top end of the connecting pipe 71 is fixedly provided with a third air cylinder 72, the bottom end of the third air cylinder 72 is fixedly connected with a sealing column 73 matched with the gas hole, and one side of the connecting pipe 71 is fixedly provided with an air pump 74 in communication.

[0025] During the lifting of the upper die 5, the third air cylinder 72 drives the sealing column 73 to move out of the gas hole, and then the air pump 74 operates to inflate the gas hole, so that the automobile plastic part can be separated from the upper die 5 by blowing air between the automobile plastic part and the upper die 5.

[0026] As shown in the drawings, Figure 1 , Figure 3 , Figure 4 and Figure 5 the top side of the upper die 5 is provided with a rectangular injection hole 8, and the outer surface of the upper die 5 is fixedly provided with a cutting mechanism 9 matched with the rectangular injection hole 8, the cutting mechanism 9 comprises an installation groove 91 formed in one side of the inner wall of the rectangular injection hole 8, and one side of the installation groove 91 is fixedly connected with a fourth air cylinder 92, and one end of the fourth air cylinder 92 is fixedly connected with a cutting knife 93.

[0027] The fourth air cylinder 92 can drive the cutting knife 93 to move, so that the nozzle material in the rectangular injection hole 8 can be cut off, and the demolding is facilitated.

[0028] The inside of the installation groove 91 is provided with a plugging block 94 matched with the rectangular injection hole 8, the outer surface of the plugging block 94 is fixedly connected with a protrusion 95 on both sides, and the inner wall of the installation groove 91 is provided with a stroke groove 96 matched with the protrusion 95 on both sides. The top of the installation groove 91 is fixedly provided with a fifth air cylinder 97, the bottom end of the fifth air cylinder 97 is fixedly connected with a T-shaped block 98, and the top of the plugging block 94 is provided with a T-shaped groove matched with the T-shaped block 98.

[0029] The fifth air cylinder 97 can drive the plugging block 94 to move up and down and left and right under the cooperation of the protrusion 95, the stroke groove 96, the T-shaped block 98 and the T-shaped groove, so that one side of the installation groove 91 can be plugged or opened during injection or cutting, so that the material can be prevented from entering the installation groove 91 or the cutting knife 93 can be moved conveniently.

[0030] Working principle: the fifth cylinder 97 runs in the cooperation of the protruding block 95, the stroke groove 96, the T-shaped block 98 and the T-shaped groove, which can drive the blocking block 94 to move up and down and left and right, so that one side of the installation groove 91 can be blocked or opened when injection molding or cutting, which can avoid material entering the installation groove 91 or facilitate the movement of the cutting knife 93, the fourth cylinder 92 runs to drive the cutting knife 93 to move, which can cut off the water gap in the rectangular injection hole 8, facilitating demolding.

[0031] During the lifting of the upper die 5, the third cylinder 72 runs to drive the sealing column 73 to move out of the air hole, and then the air pump 74 runs to inflate the air hole, which can blow air between the automobile plastic part and the upper die 5, so as to separate the automobile plastic part from the upper die 5.

[0032] When the upper die 5 is lifted, the second cylinder 64 is started to lift the top plate 61 and the formed automobile plastic part through the T-shaped rod 62, and the electric push rod 10 runs to drive the push plate 11 to move, which can push away the formed automobile plastic part.

[0033] The above shows and describes the basic principle and main features of the present application and the advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0034] In addition, it should be understood that although the present application is described in the form of embodiments, each embodiment does not contain only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A molding and demolding mechanism for automotive plastic parts, comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly connected to a lower mold (2), and a bracket (3) is fixedly connected to one side of the top of the workbench (1). A first cylinder (4) is fixedly installed at the top of the bracket (3), and an upper mold (5) is fixedly connected to the bottom of the first cylinder (4). A lifting mechanism (6) is installed inside the lower mold (2), and a separation mechanism (7) is installed on one side of the top of the upper mold (5). A rectangular injection hole (8) is opened on one side of the top of the upper mold (5), and a cutting mechanism (9) that cooperates with the rectangular injection hole (8) is installed through the outer surface of the upper mold (5). The separation mechanism (7) includes an air hole on the upper surface of the upper mold (5). A connecting pipe (71) connected to the air hole is fixedly connected to the upper surface of the upper mold (5). A third cylinder (72) is fixedly installed through the top end of the connecting pipe (71). A sealing column (73) that cooperates with the air hole is fixedly connected to the bottom end of the third cylinder (72). An air pump (74) is fixedly connected to one side of the connecting pipe (71).

2. The automotive plastic part molding and demolding mechanism according to claim 1, characterized in that: The lifting mechanism (6) includes a top plate (61) that is embedded and slidably connected inside the lower mold (2). The bottom end of the top plate (61) is fixedly connected to a T-shaped rod (62) that is slidably connected inside the lower mold (2). A spring (63) is fixedly connected between the T-shaped rod (62) and the lower mold (2). A second cylinder (64) that cooperates with the T-shaped rod (62) is fixedly installed on the lower surface of the worktable (1).

3. The demolding mechanism for molding automotive plastic parts according to claim 1, characterized in that: An electric push rod (10) is fixedly installed on one side of the upper surface of the workbench (1), and a push plate (11) is fixedly connected to one end of the electric push rod (10).

4. The demolding mechanism for molding automotive plastic parts according to claim 1, characterized in that: The cutting mechanism (9) includes a mounting groove (91) opened on one side of the inner wall of the rectangular injection hole (8), a fourth cylinder (92) is fixedly connected through one side of the mounting groove (91), and a cutting blade (93) is fixedly connected to one end of the fourth cylinder (92).

5. The demolding mechanism for molding automotive plastic parts according to claim 4, characterized in that: The mounting groove (91) is provided with a sealing block (94) that matches the rectangular injection hole (8). Both sides of the outer surface of the sealing block (94) are fixedly connected with protrusions (95). Both sides of the inner wall of the mounting groove (91) are provided with travel grooves (96) that match the protrusions (95).

6. The demolding mechanism for molding automotive plastic parts according to claim 5, characterized in that: The top of the mounting groove (91) is fixedly installed with a fifth cylinder (97), and the bottom of the fifth cylinder (97) is fixedly connected with a T-shaped block (98). The top of the sealing block (94) is provided with a T-shaped groove that matches the T-shaped block (98).

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