Plastic mold for plastic part production

Abstract

The utility model discloses a plastic mold for plastic part production, belongs to the technical field of plastic molds, and solves the problems that a pipeline is blocked by plastic of an existing device, the plastic in the pipeline needs to be cleaned regularly, and the production and processing efficiency is reduced. A feeding hole is formed in the top face of the upper mold in a penetrating mode, a feeding mechanism is arranged in the feeding hole and comprises a feeding pipe fixedly arranged in the feeding hole in a sleeved mode, the outer surface of the feeding pipe is fixedly sleeved with a heating sleeve, and the output end of a micro motor penetrates through the top face of the feeding pipe and is fixedly connected with a spiral auger. The feeding pipe is heated through the heating sleeve, plastic adhering to the inner wall of the feeding pipe can be prevented from being solidified, the micro motor drives the spiral auger to rotate, the plastic adhering to the inner wall of the feeding pipe is scraped and conveyed into the mold, the situation that the plastic blocks the interior of the feeding pipe is avoided, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to a plastic mold for producing plastic parts. Background Art

[0002] In the production process of plastic parts, molten plastic is generally injected into the mold through a pipe, and then processed into a plastic workpiece after cooling. However, the molten plastic will adhere to the inner wall of the pipe. During the cooling process of the molten plastic in the mold, the temperature of the molten plastic in the pipe drops and solidifies on the inner wall of the pipe, which then causes the pipe to be blocked.

[0003] After searching, the application with patent application number CN202320320983.1 discloses a plastic mold for producing plastic parts, including a plastic mold lower mold, a mold guide rod is provided on the plastic mold lower mold, and a plastic mold upper mold is provided on the upper end of the mold guide rod, and a plastic inlet is provided on the upper surface of the plastic mold upper mold, and a feeding mechanism is connected to the plastic inlet, and the feeding mechanism includes a sealing end cover, a reset spring, a connecting leg, a feeding pipe and a docking port, the feeding pipe is connected to the plastic inlet, a docking port is provided on the side wall of the feeding pipe, a sealing end cover is provided at the upper end of the feeding pipe, a reset spring is provided at the upper end of the feeding pipe, connecting legs are provided at both ends of the reset spring, and an isolation mechanism is provided at the lower end of the feeding pipe.

[0004] Although the plastic mold for producing plastic parts drives the isolation plug to move through the reset spring, thereby isolating the molten plastic in the mold from the molten plastic in the pipe to prevent the molten plastic in the pipe from solidifying, the molten plastic in the pipe of the plastic mold for producing plastic parts will gradually cool down and finally gather inside the pipe, causing the pipe to be blocked. The plastic in the pipe needs to be cleaned regularly, which reduces the production and processing efficiency.

[0005] Therefore, we propose a plastic mold for producing plastic parts. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a plastic mold for producing plastic parts, which solves the problem that the plastic in the prior device will clog the pipe, and the plastic in the pipe needs to be cleaned regularly, which reduces the production and processing efficiency.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: A plastic mold for producing plastic parts, comprising a lower mold, an upper mold is arranged above the lower mold, and a feed hole is opened through the top surface of the upper mold;

[0008] A feeding mechanism is arranged inside the feeding hole;

[0009] The feeding mechanism includes a feeding pipe fixedly sleeved inside the feeding hole, a heating sleeve fixedly sleeved on the outer surface of the feeding pipe, a connecting pipe connected to the top of the feeding pipe, a micro motor fixedly installed on the top surface of the feeding pipe, and an output end of the micro motor passes through the top surface of the feeding pipe and is fixedly connected to a spiral auger.

[0010] Preferably, the outer surface of the feed tube is provided with at least twenty grooves distributed in an array, and the blades of the spiral auger are in contact with the inner wall of the feed tube, wherein the heating efficiency of the heating sleeve on the feed tube is increased by the grooves, and the spiral auger is driven to rotate by a micro motor, thereby being able to transport the plastic on the inner wall of the feed tube to the inside of the mold.

[0011] Preferably, a heat insulation board is fixedly installed on the top surface of the lower mold, and the feed hole passes through the top surface of the heat insulation board. The material of the heat insulation board can be a rock wool board or a vacuum insulation board, wherein the heat generated by the heating sleeve can be prevented from being conducted to the interior of the upper mold through the heat insulation board, thereby preventing the heating sleeve from affecting the cooling molding rate of the molten plastic inside the lower mold and the upper mold.

[0012] Preferably, the inner spiral sleeve of the heating sleeve is provided with a heating wire, and a large amount of heat can be generated by connecting the heating sleeve to a power source.

[0013] Preferably, the lower mold and the upper mold match each other, and four limiting holes located at four corners are respectively opened on the surfaces of the lower mold and the upper mold opposite to each other, wherein the molten plastic is plasticized by the lower mold and the upper mold.

[0014] Preferably, the internal fixing sleeve of the limiting hole is provided with two ends of a telescopic rod, and the length of the telescopic rod when contracted is smaller than the depth of the limiting hole, wherein the telescopic rod enables the lower mold and the upper mold to not shift when being opened and closed, thereby improving the precision of the lower mold and the upper mold when they are closed.

[0015] The utility model provides a plastic mold for producing plastic parts, which has the following beneficial effects:

[0016] 1. The plastic mold for producing plastic parts heats the feed pipe through the heating sleeve to prevent the plastic adhering to the inner wall of the feed pipe from solidifying, and then starts the micro motor to drive the spiral auger to rotate, scraping the plastic adhering to the inner wall of the feed pipe and transporting it to the cavity of the lower mold and the upper mold, thereby preventing the plastic from clogging the inside of the feed pipe, improving the processing efficiency, and solving the problem that the existing device will block the pipe with plastic, and the plastic in the pipe needs to be cleaned regularly, which reduces the production and processing efficiency;

[0017] 2. The plastic mold used for the production of plastic parts increases the heating efficiency of the heating sleeve on the feed pipe through the groove, and the heat generated by the heating sleeve can be prevented from being transferred to the inside of the upper mold through the heat insulation plate, thereby preventing the heating sleeve from affecting the cooling molding rate of the molten plastic inside the lower mold and the upper mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a side view structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the disassembled structure of the feeding mechanism of the utility model;

[0021] Figure 4 This is a schematic diagram of the feed pipe structure of the utility model.

[0022] In the figure: 1. lower mold; 2. upper mold; 3. limit hole; 4. telescopic rod; 5. heat insulation board; 6. feed hole; 7. feed mechanism; 71. feed pipe; 72. groove; 73. connecting pipe; 74. micro motor; 75. spiral auger; 76. heating sleeve. 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] like Figure 1-4As shown: it includes a lower mold 1, an upper mold 2 is arranged above the lower mold 1, a feed hole 6 is penetrated through the top surface of the upper mold 2, a feed mechanism 7 is arranged inside the feed hole 6, the feed mechanism 7 includes a feed pipe 71 fixedly sleeved inside the feed hole 6, a heating sleeve 76 is fixedly sleeved on the outer surface of the feed pipe 71, a connecting pipe 73 is connected to the top of the feed pipe 71, a micro motor 74 is fixedly installed on the top surface of the feed pipe 71, and the output end of the micro motor 74 penetrates the top surface of the feed pipe 71 and is fixedly connected with a spiral auger 75, the feed pipe 71 is heated by the heating sleeve 76, so that the plastic adhered to the inner wall of the feed pipe 71 can be prevented from solidifying, and then the micro motor 74 is started to drive the spiral auger 75 to rotate, so that the plastic adhered to the inner wall of the feed pipe 71 is scraped off and transported to the mold cavity of the lower mold 1 and the upper mold 2, so as to avoid the plastic being blocked inside the feed pipe 71 and improve the processing efficiency;

[0026] Embodiment 2:

[0027] like Figure 1-4 As shown: the outer surface of the feed pipe 71 is provided with at least twenty grooves 72 distributed in an array, the blades of the spiral auger 75 are fitted with the inner wall of the feed pipe 71, the top surface of the lower mold 1 is fixedly installed with a heat insulation board 5, and the feed hole 6 passes through the top surface of the heat insulation board 5. The material of the heat insulation board 5 can be a rock wool board or a vacuum insulation board. The inner spiral sleeve of the heating sleeve 76 is provided with a heating wire. The heating efficiency of the heating sleeve 76 for the feed pipe 71 is increased by the groove 72. The heat generated by the heating sleeve 76 can be prevented from being conducted to the inside of the upper mold 2 through the heat insulation board 5, thereby preventing the heating sleeve 76 from affecting the cooling molding rate of the molten plastic inside the lower mold 1 and the upper mold 2;

[0028] Embodiment 3:

[0029] like Figure 1-2 As shown: the lower mold 1 and the upper mold 2 match each other, and four limiting holes 3 are opened on the opposite surfaces of the lower mold 1 and the upper mold 2 at their four corners, and the two ends of the telescopic rod 4 are fixedly mounted inside the limiting holes 3. The length of the telescopic rod 4 when contracted is less than the depth of the limiting holes 3. The telescopic rod 4 can prevent the lower mold 1 and the upper mold 2 from deviating when they are opened and closed, thereby improving the accuracy of the lower mold 1 and the upper mold 2 when they are closed.

[0030] Working principle and use process of the utility model: When using the plastic mold for producing plastic parts, the connecting pipe 73 is connected to the injection pipe, and the molten plastic is transported to the inside of the feed pipe 71 through the connecting pipe 73, and then enters the mold cavity of the lower mold 1 and the upper mold 2 through the feed pipe 71. At the same time, the heating sleeve 76 is energized and started to prevent the plastic adhering to the inner wall of the feed pipe 71 from solidifying, and then the micro motor 74 is started to drive the spiral auger 75 to rotate, and the plastic attached to the inner wall of the feed pipe 71 is scraped off and transported to the inside of the mold cavity of the lower mold 1 and the upper mold 2 to avoid the plastic clogging in the feed pipe 71. The lower mold 1 and the upper mold 2 are cooled, so that the plastic parts are cooled and formed.

[0031] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A plastic mold for producing plastic parts, comprising a lower mold (1), an upper mold (2) is arranged above the lower mold (1), and a feed hole (6) is opened through the top surface of the upper mold (2); Features: A feeding mechanism (7) is arranged inside the feeding hole (6); The feeding mechanism (7) comprises a feeding pipe (71) fixedly sleeved inside the feeding hole (6); a heating sleeve (76) is fixedly sleeved on the outer surface of the feeding pipe (71); the top end of the feeding pipe (71) is connected to a connecting pipe (73); a micro motor (74) is fixedly mounted on the top surface of the feeding pipe (71); and the output end of the micro motor (74) passes through the top surface of the feeding pipe (71) and is fixedly connected to a spiral auger (75).

2. A plastic mold for producing plastic parts according to claim 1, characterized in that: The outer surface of the feed pipe (71) is provided with at least twenty grooves (72) distributed in an array, and the blades of the spiral auger (75) are in contact with the inner wall of the feed pipe (71).

3. A plastic mold for producing plastic parts according to claim 1, characterized in that: A heat insulation board (5) is fixedly mounted on the top surface of the lower mold (1), and the feed hole (6) passes through the top surface of the heat insulation board (5). The material of the heat insulation board (5) can be a rock wool board or a vacuum insulation board.

4. A plastic mold for producing plastic parts according to claim 1, characterized in that: The inner spiral of the heating sleeve (76) is provided with a heating wire.

5. A plastic mold for producing plastic parts according to claim 1, characterized in that: The lower mold (1) and the upper mold (2) match each other, and four limiting holes (3) located at the four corners are respectively provided on the surfaces opposite to each other of the lower mold (1) and the upper mold (2).

6. A plastic mold for producing plastic parts according to claim 5, characterized in that: The two ends of the telescopic rod (4) are fixedly mounted inside the limiting hole (3), and the length of the telescopic rod (4) when contracted is less than the depth of the limiting hole (3).

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