A plastic mold that is blown and injected at the same time

Abstract

The utility model discloses a plastic mold that can be blown and injected at the same time in the mold, and relates to the field of demoulding technology, including an overall device, wherein the overall device includes a base, and the upper surface of the base is fixedly connected to a cavity, and a driving machine is arranged inside the cavity. The utility model drives the lifting plate to move up and down through a telescopic rod in cooperation with a telescopic cylinder, drives the push rod to move upward through a fixed column in cooperation with a fixed frame, and discharges the air inside the first slot by cooperating with a first piston and a first fixed cylinder, and drives the tooth block to move up and down through the mutual cooperation of a connecting rod and a fixed rod, and drives the gear to rotate through the tooth block, and the gear drives the threaded sleeve to rotate through a rotating rod, and drives the threaded rod to move through the threaded sleeve, so as to cooperate with the second piston to squeeze out the gas inside the second slot, thereby assisting the demoulding of the mold through the mutual cooperation of the first air outlet and the second air outlet, thereby improving the efficiency of demoulding and facilitating use.

Description

Technical Field

[0001] The utility model relates to the technical field of demoulding, in particular to a plastic mold capable of blowing and injecting plastics in a mold. Background Art

[0002] Plastic mold is the abbreviation of a combined mold used for compression molding, extrusion molding, injection molding, blow molding and low-foaming molding. The coordinated changes of the mold convex and concave molds and the auxiliary molding system can process a series of plastic parts of different shapes and sizes. It is composed of several groups of parts, and there is a molding cavity in this combination. During injection molding, the mold is clamped on the injection molding machine, and the molten plastic is injected into the molding cavity and cooled and shaped in the cavity. Then the upper and lower molds are separated, and the product is ejected from the mold cavity by the ejection system. Finally, the mold is closed for the next injection molding. The entire injection molding process is carried out in a cycle.

[0003] The existing demoulding mechanism demoulds the mold by using a push pin, but the demoulding efficiency is low and it is inconvenient to use.

[0004] The existing patent (Announcement No.: CN207190193U) discloses a demolding machine for plastic molds, which uses a demolding mechanism to eject the product in the plastic mold through several ejectors. The product is evenly stressed and not easily damaged, and is suitable for products of different shapes. When the ejection of the product is blocked, the pressure sensor will detect it and remind the workers through the alarm to prevent forced ejection from causing damage to the product. The mechanism is also equipped with a timer, which does not require human supervision and will automatically eject the product after a certain period of time.

[0005] However, the above technical solution still has certain defects. When the injection mold is demolding, it is detected by a pressure sensor, and is used in conjunction with a timer to drive the top plate to move with the telescopic column. The top plate is used in conjunction with the ejector pin. After a certain period of time, several ejectors in the demolding mechanism automatically eject the mold. When the ejection of the product is blocked, the worker can be reminded by an alarm to prevent the product from being damaged during ejection. Therefore, a plastic mold that can be blown and injected at the same time in the mold is proposed. Utility Model Content

[0006] Based on this, the purpose of the utility model is to provide a plastic mold that can perform air blowing and injection molding in the mold to solve the technical problems raised in the above background.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic mold for in-mold blowing and injection molding, comprising an overall device, the overall device comprising a base, a cavity is fixedly connected to the upper surface of the base, a driving mechanism is arranged inside the cavity, transmission mechanisms are arranged on both sides of the driving mechanism, and a mold cavity is arranged on the upper surface of the cavity;

[0008] The driving mechanism comprises a lifting plate, a telescopic column is provided on the lower surface of the lifting plate, a fixed column is fixedly connected to the upper surface of the lifting plate, a fixed frame is provided above the fixed column, a plurality of push rods are fixedly connected to the upper surface of the fixed frame, and a first fixed cylinder is provided above the plurality of push rods;

[0009] A telescopic rod is movably provided on the telescopic column, the top end of the telescopic rod is fixedly connected to the lower surface of the lifting plate, the bottom end of the telescopic column is fixedly connected to the inner upper surface of the cavity, the top end of the fixed column is fixedly connected to a fixed block, and the upper surface of the fixed block is fixedly connected to the lower surface of the fixed frame.

[0010] As an optimal technical solution for a plastic mold that performs in-mold blowing and injection molding in the utility model, the transmission mechanism includes a connecting rod, the upper surface of the other end of the connecting rod is fixedly connected to a fixing rod, the two side surfaces of the top end of the fixing rod are fixedly connected to connecting blocks, the other end of the connecting block is fixedly connected to a tooth block, the other side of the tooth block is meshed with a gear, one side of the gear is provided with a threaded sleeve, the inner wall of the threaded sleeve is threadedly connected to a threaded rod, and one end of the threaded rod is provided with a second fixing cylinder.

[0011] As an optimal technical solution for a plastic mold that performs in-mold blowing and injection molding in the utility model, a rotating rod is fixedly connected to a surface of one side of the gear, the other end of the rotating rod is fixedly connected to a threaded sleeve, one end of the threaded rod is fixedly connected to a second piston, a second slot is provided on the second fixed sleeve, and the second piston is inserted into the second slot.

[0012] As an optimal technical solution for a plastic mold that performs in-mold blowing and injection molding in the utility model, the other end of the push rod is fixedly connected to a first piston, a first groove is provided on the first fixed cylinder, the first piston is inserted into the first groove, the outer wall of the second piston is fitted to the inner wall of the second groove, and the outer wall of the first piston is fitted to the inner wall of the first groove.

[0013] As an optimal technical solution for a plastic mold that performs in-mold blowing and injection molding according to the utility model, multiple groups of first air outlet holes are provided on the upper surface of the cavity, and multiple groups of second air outlet holes are provided on both side surfaces of the cavity. The other end of the connecting rod is fixedly connected to the two ends of the lifting plate, and two groups of openings are provided on both side surfaces of the cavity. The connecting rod is inserted into the opening, and the fixing rod is located on both sides of the cavity. The other end of the second fixing tube is fitted with the first air outlet, and the other end of the first slot is fitted with the second air outlet.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] The utility model drives the lifting plate to move up and down by cooperating with the telescopic rod and the telescopic cylinder, drives the push rod to move upward by cooperating with the fixing column and the fixing frame, discharges the air inside the first slot by cooperating with the first piston and the first fixing cylinder, and drives the tooth block to move up and down by cooperating with the connecting rod and the fixing rod, drives the gear to rotate by the tooth block, drives the threaded sleeve to rotate by the rotating rod, drives the threaded rod to move by the threaded sleeve, thereby cooperating with the second piston to squeeze out the gas inside the second slot, thereby assisting the demoulding of the mold by cooperating with the first air outlet and the second air outlet, thereby improving the demoulding efficiency and facilitating the use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a disassembled schematic diagram of the transmission structure of the utility model;

[0018] Figure 3 It is a bottom view structural diagram of the driving mechanism and transmission mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the local structure of the driving mechanism of the utility model;

[0020] Figure 5 It is a schematic diagram of the disassembled structure of the first push rod and the first fixing cylinder of the utility model.

[0021] Figure 6 This is a schematic diagram of the cavity and connecting rod structure of the utility model

[0022] In the figure: 100, the device as a whole; 110, the base; 120, the cavity; 121, the opening; 130, the driving mechanism; 131, the lifting plate; 132, the telescopic column; 1321, the telescopic rod; 133, the fixed column; 1331, the fixed block; 134, the fixed frame; 135, the push rod; 1351, the first piston; 136, the first fixed cylinder; 1361, the first slot; 140, the transmission mechanism; 141, the connecting rod; 142, the fixed rod; 143, the connecting block; 1431, the gear block; 144, the gear; 1441, the rotating rod; 145, the threaded sleeve; 146, the threaded rod; 1461, the second piston; 147, the second fixed cylinder; 1471, the second slot; 150, the cavity; 151, the first air outlet; 152, the second air outlet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0024] The following describes an embodiment of the utility model based on its overall structure.

[0025] A plastic mold that is blown and injected at the same time, such as Figure 1-6 As shown, the device as a whole 100 includes a base 110, the upper surface of the base 110 is fixedly connected to a cavity 120, a driving mechanism 130 is provided inside the cavity 120, transmission mechanisms 140 are provided on both sides of the driving mechanism 130, and a mold cavity 150 is provided on the upper surface of the cavity 120.

[0026] The telescopic column 132 cooperates with the telescopic rod 1321 to drive the lifting plate 131 to move upward, and the lifting plate 131 cooperates with the fixed column 133 and the fixed block 1331 to drive the fixed frame 134 to move, so that the push rod 135 is driven upward through the fixed frame 134, and the push rod 135 cooperates with the first piston 1351 to squeeze the air inside the first slot 1361, and at the same time, the lifting plate 131 cooperates with the connecting rod 141 to drive the fixed rod 142 to move, and the fixed rod 142 drives the tooth block 1431 to move through the connecting block 143, and the gear 144 is adjusted to rotate through the tooth block 1431, and the gear 144 cooperates with the rotating rod 1441 to drive the threaded sleeve 145 to rotate, and the threaded rod 146 is driven by the threaded sleeve 145 to move inside the threaded sleeve 145, so that the second piston 1461 is driven by the threaded rod 146 to move inside the second slot 1471, so that the internal air is discharged, and the mold is demoulded by cooperating with the first air outlet 151 and the second air outlet 152.

[0027] Please refer to Figure 3 , Figure 4 , Figure 5 The driving mechanism 130 includes a lifting plate 131, a telescopic column 132 is provided on the lower surface of the lifting plate 131, a fixed column 133 is fixedly connected to the upper surface of the telescopic column 132, a fixed frame 134 is provided above the fixed column 133, a plurality of push rods 135 are fixedly connected to the upper surface of the fixed frame 134, and a first fixed cylinder 136 is provided above the plurality of push rods 135.

[0028] The push rod 135 is driven by the fixing frame 134 to move up and down, and the push rod 135 cooperates with the first piston 1351 to move inside the first slot 1361 to be used.

[0029] Please refer to Figure 3 and Figure 4A telescopic rod 1321 is movably provided on the telescopic column 132, the top end of the telescopic rod 1321 is fixedly connected to the lower surface of the lifting plate 131, the bottom end of the telescopic column 132 is fixedly connected to the inner upper surface of the cavity 120, the top end of the fixed column 133 is fixedly connected to a fixed block 1331, and the upper surface of the fixed block 1331 is fixedly connected to the lower surface of the fixed frame 134.

[0030] The telescopic column 132 cooperates with the telescopic rod 1321 to drive the lifting plate 131 to move up and down for use, and the lifting plate 131 cooperates with the fixed column 133 and the fixed block 1331 to drive the fixed frame 134 to use the push rod 135.

[0031] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 The transmission mechanism 140 includes a connecting rod 141, a fixing rod 142 is fixedly connected to the upper surface of the other end of the connecting rod 141, connecting blocks 143 are fixedly connected to the two side surfaces of the top of the fixing rod 142, the other end of the connecting block 143 is fixedly connected to a tooth block 1431, the other side of the tooth block 1431 is meshed with a gear 144, a threaded sleeve 145 is provided on one side of the gear 144, a threaded rod 146 is threadedly connected to the inner wall of the threaded sleeve 145, and a second fixed cylinder 147 is provided at one end of the threaded rod 146.

[0032] The connecting rod 141 cooperates with the fixing rod 142 to drive the connecting block 143 to move, and the connecting block 143 drives the tooth block 1431 to move for use, and the tooth block 1431 drives the gear 144 to rotate, and the gear 144 drives the rotating rod 1441 to rotate for use.

[0033] Please refer to Figure 1 , Figure 2 , Figure 3 A rotating rod 1441 is fixedly connected to one side surface of the gear 144, the other end of the rotating rod 1441 is fixedly connected to the threaded sleeve 145, one end of the threaded rod 146 is fixedly connected to the second piston 1461, and a second groove 1471 is formed on the second fixed cylinder 147, and the second piston 1461 is inserted into the second groove 1471.

[0034] The gear 144 cooperates with the rotating rod 1441 to rotate, the rotating rod 1441 drives the threaded sleeve 145 to rotate, the threaded sleeve 145 drives the threaded rod 146 to rotate, and the threaded rod 146 cooperates with the second piston 1461 to squeeze out the air inside the second slot 1471 for demolding.

[0035] Please refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 The other end of the push rod 135 is fixedly connected to the first piston 1351, the first fixed cylinder 136 is provided with a first groove 1361, the first piston 1351 is inserted into the first groove 1361, the outer wall of the second piston 1461 is attached to the inner wall of the second groove 1471, and the outer wall of the first piston 1351 is attached to the inner wall of the first groove 1361.

[0036] The push rod 135 cooperates with the first piston 1351 to push out the air in the first slot 1361 on the first fixed cylinder 136, and the threaded rod 146 cooperates with the second piston 1461 to push out the air in the second slot 1471 on the second fixed cylinder 147, thereby facilitating demoulding.

[0037] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , multiple groups of first air outlet holes 151 are opened on the upper surface of the cavity 150, and multiple groups of second air outlet holes 152 are opened on the two side surfaces of the cavity 150. The other end of the connecting rod 141 is fixedly connected to the two ends of the lifting plate 131, and two groups of openings 121 are opened on the two side surfaces of the cavity 120. The connecting rod 141 is inserted into the opening 121, and the fixing rod 142 is located on both sides of the cavity 150. The other end of the second fixing tube 147 is in contact with the first air outlet hole 151, and the other end of the first slot 1361 is in contact with the second air outlet hole 152.

[0038] When in use, the telescopic column 132 cooperates with the telescopic rod 1321 to drive the lifting plate 131 to move upward, and the lifting plate 131 cooperates with the fixed column 133 and the fixed block 1331 to drive the fixed frame 134 to move, so that the fixed frame 134 drives the push rod 135 to move upward, and the push rod 135 cooperates with the first piston 1351 to squeeze the air inside the first slot 1361, and at the same time, the lifting plate 131 cooperates with the connecting rod 141 to drive the fixing rod 142 to move, and the fixing rod 142 drives the tooth block 1431 to move through the connecting block 143. The gear 144 is rotated by the tooth block 1431, and the threaded sleeve 145 is rotated by the gear 144 in cooperation with the rotating rod 1441, and the threaded sleeve 145 drives the threaded rod 146 to move inside the threaded sleeve 145, so that the second piston 1461 is driven by the threaded rod 146 to move inside the second groove 1471, so that the internal air is discharged, and the mold is demolded by cooperating with the first air outlet 151 and the second air outlet 152. The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology.

[0039] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A plastic mold for in-mold blowing and injection molding, comprising a device as a whole (100), characterized in that: The device as a whole (100) comprises a base (110), the upper surface of the base (110) is fixedly connected to a cavity (120), a driving mechanism (130) is provided inside the cavity (120), transmission mechanisms (140) are provided on both sides of the driving mechanism (130), and a mold cavity (150) is provided on the upper surface of the cavity (120); The driving mechanism (130) comprises a lifting plate (131), a telescopic column (132) is provided on the lower surface of the lifting plate (131), a fixed column (133) is fixedly connected to the upper surface of the telescopic column (132), a fixed frame (134) is provided above the fixed column (133), a plurality of push rods (135) are fixedly connected to the upper surface of the fixed frame (134), a first fixed cylinder (136) is provided above the plurality of push rods (135); A telescopic rod (1321) is movably provided on the telescopic column (132), the top end of the telescopic rod (1321) is fixedly connected to the lower surface of the lifting plate (131), the bottom end of the telescopic column (132) is fixedly connected to the inner upper surface of the cavity (120), the top end of the fixed column (133) is fixedly connected to a fixed block (1331), and the upper surface of the fixed block (1331) is fixedly connected to the lower surface of the fixed frame (134).

2. The plastic mold for in-mold blowing and injection molding according to claim 1, characterized in that: The transmission mechanism (140) comprises a connecting rod (141), the upper surface of the other end of the connecting rod (141) is fixedly connected to a fixing rod (142), the top and side surfaces of the fixing rod (142) are fixedly connected to connecting blocks (143), the other end of the connecting block (143) is fixedly connected to a tooth block (1431), the other side of the tooth block (1431) is meshed with a gear (144), one side of the gear (144) is provided with a threaded sleeve (145), the inner wall of the threaded sleeve (145) is threadedly connected to a threaded rod (146), and one end of the threaded rod (146) is provided with a second fixing sleeve (147).

3. The plastic mold for in-mold blowing and injection molding according to claim 2, characterized in that: A rotating rod (1441) is fixedly connected to one side surface of the gear (144), the other end of the rotating rod (1441) is fixedly connected to a threaded sleeve (145), one end of the threaded rod (146) is fixedly connected to a second piston (1461), a second slot (1471) is provided on the second fixed sleeve (147), and the second piston (1461) is inserted into the second slot (1471).

4. The plastic mold for in-mold blowing and injection molding according to claim 3, characterized in that: The other end of the push rod (135) is fixedly connected to the first piston (1351), the first fixed cylinder (136) is provided with a first groove (1361), the first piston (1351) is inserted into the first groove (1361), the outer wall of the second piston (1461) is in contact with the inner wall of the second groove (1471), and the outer wall of the first piston (1351) is in contact with the inner wall of the first groove (1361).

5. The plastic mold for in-mold blowing and injection molding according to claim 4, characterized in that: The upper surface of the mold cavity (150) is provided with a plurality of first air outlet holes (151), and the two side surfaces of the mold cavity (150) are provided with a plurality of second air outlet holes (152). The other end of the connecting rod (141) is fixedly connected to the two ends of the lifting plate (131), and the two side surfaces of the cavity (120) are provided with two groups of openings (121). The connecting rod (141) is inserted into the opening (121), and the fixing rod (142) is located on both sides of the mold cavity (150). The other end of the second fixing tube (147) is in contact with the first air outlet hole (151), and the other end of the first slot (1361) is in contact with the second air outlet hole (152).

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