Template melt pressurizing runner

Abstract

The utility model belongs to the technical field of hot runners, and particularly relates to a template melt pressurizing runner which comprises a main runner, a connecting plate body and a splitter plate body are arranged on the main runner, a sub-runner is arranged in the splitter plate body, an air cylinder is fixedly arranged on the connecting plate body, a piston, an extension rod, a blocking block and a dredging rod are arranged at the telescopic end of the air cylinder, and the piston is connected with the extension rod. A material injection pipe, a heater, a protective sleeve and a booster pump are arranged on the splitter plate body, and an electric heating wire is arranged on the outer wall of the material injection pipe. The connecting plate body is arranged on the main runner, the air cylinder corresponding to the material injection pipe is installed on the connecting plate body, the air cylinder controls the extension rod and the dredging rod to move in the pipe to dredge melt in the pipe, and meanwhile, the piston is arranged at the top of the pipe, so that the melt can be prevented from leaking, pressure can be applied downwards to extrude out the melt, and the material injection pipe is convenient to use. And the spiral electric heating wires with the same length are arranged on each pipe wall and controlled by the same heater, so that the melts in the pipes are heated at the same time, and the plastic melts are ensured not to be solidified.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runner, in particular to a template melt boosting runner. Background Technique

[0002] A melt boosting runner generally refers to a channel system in an injection mold or polymer processing equipment for transporting, boosting, and maintaining the flow of plastic melt under specific temperature and pressure conditions. This system combines the functions of hot runner technology and a melt boosting pump to ensure that the plastic melt can flow into the mold cavity efficiently and stably, thereby producing high-quality plastic products.

[0003] The existing runners are usually multi-channel systems. Therefore, when injecting plastic melt into the mold, if the runners are heated unevenly, the plastic melt in some runners may gradually solidify, resulting in blockage of the runner pipes.

[0004] To solve the above problems, a template melt boosting runner is proposed in this application. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides a template melt boosting runner, which includes a main runner. A feeding pump, a connecting plate body, and a manifold plate body are fixedly arranged on the main runner. A diversion channel is arranged in the manifold plate body. A valve is rotatably arranged in the diversion channel. A control handle is fixedly arranged on the valve. A cylinder is fixedly arranged on the connecting plate body. A piston is fixedly arranged on the telescopic end of the cylinder. An extension rod is fixedly arranged at the bottom of the piston. A blocking block is fixedly arranged at the end of the extension rod. A dredging rod is fixedly arranged at the bottom of the blocking block. A feeding pipe, a heater, a protective sleeve, and a boosting pump are fixedly arranged on the manifold plate body. An electric heating wire is fixedly arranged on the outer wall of the feeding pipe.

[0006] Preferably, four electric heating wires are fixedly connected to the heater. The four electric heating wires are of equal length. The piston, the extension rod, the blocking block, and the dredging rod are slidably connected in the feeding pipe. The diameter of the piston is equal to the diameter of the feeding pipe. The diameter of the extension rod is smaller than the diameter of the feeding pipe. The bottom diameter of the blocking block is equal to the diameter of the opening of the feeding pipe. The shape of the dredging rod is spiral.

[0007] Preferably, four diversion channels are arranged on the manifold plate body. The four diversion channels are all communicated with the bottom of the main runner. The valve is rotatably installed in the diversion channel. The control handle is fixedly connected to the valve. The control handle is rotatably connected to the upper surface of the connecting plate body.

[0008] Preferably, the connecting plate body is fixedly connected to the side wall of the main runner. The feeding pump is located on the upper surface of the connecting plate body. The cylinder is fixedly installed on the lower surface of the connecting plate body.

[0009] Preferably, the material injection pipe, the heater and the protective sleeve are all fixedly connected to the lower surface of the flow dividing plate body. The heating wire is spirally wound around the outer wall of the material injection pipe. The protective sleeve surrounds both the material injection pipe and the heating wire. Both ends of the heating wire are fixedly connected to the interfaces of the heater.

[0010] Preferably, four booster pumps are fixedly installed in the flow dividing plate body, and the four booster pumps respectively correspond to the four flow dividing channels.

[0011] The above technical solution of the present utility model has the following beneficial technical effects:

[0012] In the present utility model, by providing a connecting plate body on the main flow channel, installing a cylinder corresponding to the material injection pipe on the connecting plate body, and controlling the extension rod and the spiral dredging rod to move inside and at the pipe orifice through the cylinder, the effect of dredging the plastic melt inside the pipe is achieved. At the same time, a piston is provided at the top of the pipe, which can not only prevent the plastic melt from leaking, but also exert pressure downward to extrude the melt, thus completing the injection molding. Then, heating wires spirally wound with the same length are provided on each pipe wall and controlled by the same heater, so that each part of the melt in the pipe can be evenly heated, ensuring that the plastic melt will not solidify. The heating wire is surrounded by a protective sleeve to prevent the staff from being injured by the heating wire by mistake; at the same time, four booster pumps corresponding to the flow dividing channels are provided in the flow dividing plate body to achieve independent pressurization of each flow dividing channel, enabling the staff to adjust the pressure inside each flow dividing channel according to the actual situation, thereby changing the flow rate and flow of the melt in the flow dividing channel, making the device applicable to the injection molding operation of molds with irregular shapes. Description of the Drawings

[0013] Figure 1 is a schematic cross-sectional structure diagram of the present utility model;

[0014] Figure 2 is a schematic side view structure diagram of the present utility model;

[0015] Figure 3 is a schematic bottom view structure diagram of the present utility model.

[0016] Reference Signs:

[0017] 1, main flow channel; 101, material injection pump; 102, connecting plate body; 103, flow dividing plate body; 104, flow dividing channel; 2, control handle; 201, valve; 3, cylinder; 301, piston; 302, extension rod; 303, blocking block; 304, dredging rod; 4, material injection pipe; 5, heater; 501, heating wire; 6, protective sleeve; 7, booster pump. Detailed Embodiments

[0018] To make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following descriptions, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0019] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model.

[0020] Some embodiments of the present utility model will be described below with reference to the accompanying drawings to provide a template melt pressure boosting runner.

[0021] Embodiment 1:

[0022] Combined with Figures 1-3As shown in the figure, a template melt boosting runner provided by the utility model includes a main runner 1. A feeding pump 101, a connecting plate body 102 and a flow dividing plate body 103 are fixedly arranged on the main runner 1. A flow dividing channel 104 is formed in the flow dividing plate body 103. A valve 201 is rotatably arranged in the flow dividing channel 104. A control handle 2 is fixedly arranged on the valve 201. A cylinder 3 is fixedly arranged on the connecting plate body 102. A piston 301 is fixedly arranged on the telescopic end of the cylinder 3. An extension rod 302 is fixedly arranged at the bottom of the piston 301. A blocking block 303 is fixedly arranged at the end of the extension rod 302. A dredging rod 304 is fixedly arranged at the bottom of the blocking block 303. A feeding pipe 4, a heater 5, a protective sleeve 6 and a boosting pump 7 are fixedly arranged on the flow dividing plate body 103. An electric heating wire 501 is fixedly arranged on the outer wall of the feeding pipe 4. Four electric heating wires 501 are fixedly connected to the heater 5. The lengths of the four electric heating wires 501 are equal. The piston 301, the extension rod 302, the blocking block 303 and the dredging rod 304 are slidably connected in the feeding pipe 4. The diameter of the piston 301 is equal to the diameter of the feeding pipe 4. The diameter of the extension rod 302 is smaller than the diameter of the feeding pipe 4. The bottom diameter of the blocking block 303 is equal to the diameter of the opening of the feeding pipe 4. The shape of the dredging rod 304 is spiral. Four flow dividing channels 104 are formed in the flow dividing plate body 103. The four flow dividing channels 104 are all communicated with the bottom of the main runner 1. The valve 201 is rotatably installed in the flow dividing channel 104. The control handle 2 is fixedly connected to the valve 201. The control handle 2 is rotatably connected to the upper surface of the connecting plate body 102. The connecting plate body 102 is fixedly connected to the side wall of the main runner 1. The feeding pump 101 is located on the upper surface of the connecting plate body 102. The cylinder 3 is fixedly installed on the lower surface of the connecting plate body 102. The feeding pipe 4, the heater 5 and the protective sleeve 6 are all fixedly connected to the lower surface of the flow dividing plate body 103. The electric heating wire 501 is spirally wound around the outer wall of the feeding pipe 4. The protective sleeve 6 surrounds both the feeding pipe 4 and the electric heating wire 501. Both ends of the electric heating wire 501 are fixedly connected to the interfaces of the heater 5. Four boosting pumps 7 are fixedly installed in the flow dividing plate body 103. The four boosting pumps 7 respectively correspond to the four flow dividing channels 104.

[0023] Specifically, a feeding pump 101 is fixedly installed on the sprue 1 so that the feeding pump 101 can control the melt in the sprue 1 to enter the bottom runner 104. A connecting plate body 102 is fixedly welded on the side wall of the sprue 1. A control handle 2 is rotatably installed on the connecting plate body 102, and the bottom of the control handle 2 is fixedly connected to a valve 201 located in the runner 104, so that the rotation of the control handle 2 can control the rotation of the valve 201 in the runner 104, thereby controlling the opening and closing of the four runners 104. The device can not only complete single-runner injection molding but also multiple-runner injection molding. A feeding pipe 4 is fixedly connected to the bottom of the runner plate body 103, and the feeding pipe 4 communicates with the corresponding runner 104. Four cylinders 3 corresponding to the runners 104 are installed at the bottom of the connecting plate body 102. A piston 301 is fixedly connected to the telescopic end of the cylinder 3, and the diameter of the piston 301 is equal to the diameter of the feeding pipe 4, so that the piston 301 can prevent the melt from leaking upward. At the same time, as the piston 301 moves up and down, the melt in the feeding pipe 4 can also be squeezed downward to complete the injection molding operation. An extension rod 302 is fixedly connected to the bottom of the piston 301, and a blocking block 303 is fixedly connected to the bottom of the extension rod 302. The diameter of the bottom of the blocking block 303 is equal to the diameter of the opening of the feeding pipe 4, so that when the feeding pipe 4 is not in use, the cylinder 3 can be used to control the blocking block 303 to reach the opening of the feeding pipe 4, thereby blocking the opening of the feeding pipe 4 and preventing the melt from remaining at the opening and solidifying to cause blockage, ensuring normal use next time. A dredging rod 304 is fixedly connected to the bottom of the blocking block 303, and the dredging rod 304 is spiral. When the melt in the feeding pipe 4 is extruded out of the feeding pipe 4, the dredging rod 304 can also dredge the opening to avoid blockage affecting use. Electric heating wires 501 are spirally wound around the outer wall of the feeding pipe 4, and the lengths of the four electric heating wires 501 are equal. Each electric heating wire 501 is connected to the interface of a heater 5, so that the heater 5 can control the four electric heating wires 501 to generate heat simultaneously. The spiral electric heating wires 501 can uniformly heat the melt in the feeding pipe 4 to prevent the melt from solidifying and affecting the use of the runner 104 and the feeding pipe 4. Four protective sleeves 6 surrounding the electric heating wires 501 are fixedly welded to the bottom of the runner plate body 103 to protect the electric heating wires 501 and prevent staff from being injured by accidentally touching the electric heating wires 501. Four booster pumps 7 communicating with the corresponding runners 104 are installed on the runner plate body 103, so that the booster pumps 7 can control the pressure in their respective runners 104, thereby changing the flow rate and velocity of the melt in the runners 104. At the same time, the melt in the feeding pipe 4 can also be extruded out of the pipe orifice to complete the melt injection molding.

[0024] Working principle and usage process of the present utility model: First, introduce the plastic melt into the main runner 1, and inject the melt into the sub-runners 104 at a uniform speed through the injection pump 101. Rotate the corresponding control handle 2 according to the injection molding requirements to open the valve 201 in the corresponding sub-runner 104, so that the melt enters the injection pipe 4 through the sub-runner 104. Subsequently, start the cylinder 3 and the booster pump 7. The cylinder 3 drives the piston 301, the extension rod 302, the blocking block 303, and the dredging rod 304 to perform lifting and lowering movements to dredge and extrude the melt in the injection pipe 4. At the same time, the booster pump 7 changes the pressure in the sub-runner 104 to change the flow rate and velocity of the melt in the injection pipe 4. Finally, the melt will come out from the opening of the injection pipe 4 under the action of pressure to complete the injection molding operation of the irregular mold.

[0025] It should be understood that the above specific embodiments of the present utility model are only used for exemplary illustration or explanation of the principle of the present utility model, and do not constitute a limitation to the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present utility model shall be included within the protection scope of the present utility model. In addition, the appended claims of the present utility model are intended to cover all changes and modifications that fall within the scope and boundary of the appended claims, or equivalent forms of such scope and boundary.

Claims

1. A template melt boosting runner, comprising a main runner (1), characterized in that, A charging pump (101), a connecting plate body (102) and a flow dividing plate body (103) are fixedly arranged on the main runner (1). A flow dividing channel (104) is formed in the flow dividing plate body (103). A valve (201) is rotatably arranged in the flow dividing channel (104). A control handle (2) is fixedly arranged on the valve (201). A cylinder (3) is fixedly arranged on the connecting plate body (102). A piston (301) is fixedly arranged on the telescopic end of the cylinder (3). An extension rod (302) is fixedly arranged at the bottom of the piston (301). A blocking block (303) is fixedly arranged at the end of the extension rod (302). A dredging rod (304) is fixedly arranged at the bottom of the blocking block (303). A charging pipe (4), a heater (5), a protective sleeve (6) and a booster pump (7) are fixedly arranged on the flow dividing plate body (103). An electric heating wire (501) is fixedly arranged on the outer wall of the charging pipe (4).

2. The pressure-boosting runner for template melt according to claim 1, characterized in that, Four electric heating wires (501) are fixedly connected to the heater (5). The four electric heating wires (501) are equal in length. The piston (301), the extension rod (302), the blocking block (303) and the dredging rod (304) are slidably connected in the charging pipe (4). The diameter of the piston (301) is equal to the diameter of the charging pipe (4). The diameter of the extension rod (302) is smaller than the diameter of the charging pipe (4). The bottom diameter of the blocking block (303) is equal to the diameter of the opening of the charging pipe (4). The shape of the dredging rod (304) is spiral.

3. The pressure-boosting runner for template melt according to claim 1, wherein Four flow dividing channels (104) are formed in the flow dividing plate body (103). The four flow dividing channels (104) are all communicated with the bottom of the main runner (1). The valve (201) is rotatably installed in the flow dividing channel (104). The control handle (2) is fixedly connected to the valve (201). The control handle (2) is rotatably connected to the upper surface of the connecting plate body (102).

4. A template melt pressure-increasing runner according to claim 1, characterized in that The connecting plate body (102) is fixedly connected to the side wall of the main runner (1). The charging pump (101) is located on the upper surface of the connecting plate body (102). The cylinder (3) is fixedly installed on the lower surface of the connecting plate body (102).

5. The pressure-boosting runner for template melt according to claim 1, wherein The charging pipe (4), the heater (5) and the protective sleeve (6) are all fixedly connected to the lower surface of the flow dividing plate body (103). The electric heating wire (501) is spirally wound around the outer wall of the charging pipe (4). The protective sleeve (6) surrounds both the charging pipe (4) and the electric heating wire (501). Both ends of the electric heating wire (501) are fixedly connected to the interfaces of the heater (5).

6. The pressure-increasing runner for template melt according to claim 1, characterized in that Four booster pumps (7) are fixedly installed in the flow dividing plate body (103). The four booster pumps (7) correspond to the four flow dividing channels (104) respectively.

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