Continuous forming device for mold part machining

Abstract

The utility model relates to the technical field of mold processing, in particular to a continuous forming device for mold part processing, which comprises a horizontal injection molding machine, a case I is arranged on the horizontal injection molding machine, a material making mechanism is mounted on the case I, the material making mechanism comprises a melting screw machine, a port of the melting screw machine is connected with an injection molding head, and the injection molding head is connected with a die. Raw materials flow along the coiled pipe after being extruded, injection molding is conducted on the corresponding cavity through the first injection molding pipe, sufficient injection molding pressure is guaranteed, the first electromagnetic valve is controlled to be opened after the first cavity is filled, the raw materials continue to flow to the second injection molding pipe, and it is guaranteed that the second cavity is filled with sufficient injection molding pressure; and by parity of reasoning, it is guaranteed that only one empty cavity is used for injecting raw materials during injection molding each time, so that the injection molding stability is improved, and the problems that when injection molding is conducted in multiple cavities at the same time, pressure distribution is not uniform, and pressure is not stable are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold processing, in particular to a continuous forming device for processing mold parts. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In short, molds are tools used to make molded objects. Such tools are composed of various parts, and different molds are composed of different parts. Molds that continuously mold parts can continuously process parts.

[0003] According to the Chinese patent publication number CN212400121U, the patent provides a continuous molding device for mold parts processing, including a base and a support plate, the support plate is movably arranged above the base, a first installation cavity is arranged on one side of the base, a servo electric cylinder and a movably connected support frame are arranged inside the first installation cavity, an injection molding mechanism is arranged on the top of the support frame, and a motor is arranged inside the base on one side of the first installation cavity. By arranging the support plate, the first installation cavity, the servo electric cylinder, the support frame, the injection molding mechanism, the motor, the first processing mold and the second processing mold, injection molding of multiple first processing molds and second processing molds can be realized, the operation is convenient and fast, and the injection molding mechanism can ensure that the injection molding operation can be accurately performed on molds in different positions. The operation is convenient and fast, and the parts processing efficiency is high.

[0004] The above-mentioned technical center aims to improve processing efficiency by increasing the number of injection molds and thus increasing the single processing volume. However, the extrusion pressure of the injection molding machine when performing multi-mold injection molding from a single injection port is biased, making it difficult to ensure the actual injection quality, resulting in an increase in defective products under continuous processing conditions. In view of this, we propose a continuous molding device for mold part processing. Utility Model Content

[0005] The utility model aims to provide a continuous molding device for processing mold parts, which solves the problem that when an injection molding machine performs multi-mold injection molding from a single injection port, the extrusion pressure is deviated and unstable, resulting in an increase in defective products under continuous processing conditions.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A continuous forming device for processing mold parts, including a horizontal injection molding machine, a chassis 1 is provided on the horizontal injection molding machine, a material making mechanism is installed on the chassis 1, the material making mechanism includes a melting screw machine, a port of the melting screw machine is connected to an injection molding head, the injection molding head is connected to one end of a serpentine tube, the serpentine tube is connected to four injection molding tubes in sequence, four solenoid valves are installed on the serpentine tube in sequence, the end of the serpentine tube away from the injection molding head is connected to a reflux pipe, the end of the reflux pipe away from the serpentine tube is connected to a lifting pump, the outlet of the lifting pump is connected to the lifting pipe, the melting screw machine is installed with an upper hopper, and the end of the lifting pipe away from the lifting pump is connected to the upper hopper.

[0008] Preferably, a first heater is installed on the melting screw machine, and a second heater is installed on the reflux pipe.

[0009] Preferably, a mounting plate is provided on the top of the horizontal injection molding machine, and the melting screw machine is installed between the chassis 1 and the mounting plate.

[0010] Preferably, a second chassis is installed on the side of the mounting plate away from the melting screw machine, a control panel is provided on the front of the second chassis, a heat preservation hole is opened on the side wall of the second chassis, and the injection head passes through the mounting plate and extends into the heat preservation hole.

[0011] Preferably, a clamping device is provided on the top of the horizontal injection molding machine, a fixed mold and a movable mold are provided in the clamping device, the fixed mold is installed on the inner wall of the insulation hole, and a groove is provided on one side of the fixed mold close to the injection head.

[0012] Preferably, the embedding groove corresponds to the serpentine tube, the serpentine tube is embedded in the inner wall of the embedding groove, and the fixed mold is provided with embedding holes corresponding to the injection tubes, and each of the injection tubes passes through the corresponding embedding holes.

[0013] Preferably, a cavity corresponding to the injection tube is formed on a side of the movable mold close to the fixed mold, and a cooling plate is installed on a side of the movable mold away from the cavity.

[0014] By means of the above technical solution, the utility model provides a continuous forming device for processing mold parts, which has at least the following beneficial effects:

[0015] (1) The utility model allows the raw material to flow along the serpentine tube after being extruded, and first passes through the first injection tube to be injection molded into the corresponding cavity to ensure sufficient injection pressure. After the first cavity is filled, the first solenoid valve is controlled to open, so that the raw material continues to flow to the second injection tube and ensures sufficient injection pressure to fill the second cavity. This is done by analogy to ensure that there is only one empty cavity to inject the raw material each time during injection molding, thereby improving the stability of injection molding and avoiding the problem of uneven pressure distribution and unstable pressure when multiple cavities are injected at the same time.

[0016] (2) The utility model uses a lifting pump to suck the residual raw materials in the serpentine tube along the reflux pipe, and recycles them into the upper hopper through the lifting pipe for secondary processing, thereby avoiding the problem of raw material waste. The heater can provide a secondary heating effect on the flowing raw materials, thereby avoiding the problem of blockage caused by cooling of the raw materials in the reflux pipe. The insulation hole is sealed by the mounting plate and the fixed mold, which further ensures the heat of the raw materials when flowing in the serpentine tube and reduces the heat loss efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

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

[0019] Figure 2 It is a structural schematic diagram of the heat preservation tank in the utility model;

[0020] Figure 3 It is a connection diagram of the melting screw machine and the fixed mold in the utility model;

[0021] Figure 4 It is an exploded view of the melting screw machine and the fixed mold in the utility model;

[0022] Figure 5 This is a cavity structure diagram of the movable mold in the utility model;

[0023] Figure 6 This is a structural diagram of the other side of the movable mold in the utility model.

[0024] In the figure: 1. horizontal injection molding machine; 2. chassis 1; 3. material preparation mechanism; 31. melting screw machine; 32. injection head; 33. serpentine pipe; 34. injection pipe; 35. solenoid valve; 36. return pipe; 37. lifting pump; 38. lifting pipe; 39. upper hopper; 4. heater 1; 5. heater 2; 6. mounting plate; 7. chassis 2; 8. insulation hole; 9. clamping device; 10. fixed mold; 11. embedding groove; 12. movable mold; 13. cavity; 14. refrigeration plate. DETAILED DESCRIPTION

[0025] 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.

[0026] Embodiment 1

[0027] See also Figure 1-6 The utility model provides a continuous molding device for processing mold parts, including a horizontal injection molding machine 1, a chassis 2 is arranged on the horizontal injection molding machine 1, a material making mechanism 3 is installed on the chassis 2, the material making mechanism 3 includes a melting screw machine 31, the melting screw machine 31 is one of the components of the horizontal injection molding machine 1, the port of the melting screw machine 31 is connected to an injection head 32, the injection head 32 is connected to one end of a serpentine tube 33, the serpentine tube 33 is sequentially connected to four injection tubes 34, four solenoid valves 35 are sequentially installed on the serpentine tube 33, and the end of the serpentine tube 33 away from the injection head 32 is connected to the injection head 32. A reflux pipe 36 is connected, and a lifting pump 37 is connected to the end of the reflux pipe 36 away from the serpentine pipe 33. The outlet of the lifting pump 37 is connected to a lifting pipe 38. An upper hopper 39 is installed on the melting screw machine 31. The end of the lifting pipe 38 away from the lifting pump 37 is connected to the upper hopper 39. The lifting pump 37 sucks the residual raw material in the serpentine pipe 33 back into the upper hopper 39 for secondary processing. A heater 4 is installed on the melting screw machine 31. At the set temperature of the heater 4, the temperature in the barrel of the melting screw machine 31 is increased to the melting point of the raw material. A heater 2 5 is installed on the reflux pipe 36.

[0028] In this embodiment, after the raw material is extruded, it flows along the serpentine tube 33, and first passes through the first injection tube 34 to be injection molded into the corresponding cavity 13 to ensure sufficient injection pressure. After the first cavity 13 is filled, the first solenoid valve 35 is controlled to open, so that the raw material continues to flow to the second injection tube 34 and ensures sufficient injection pressure to fill the second cavity 13, and so on, until all four cavities 13 are filled. The lifting pump 37 sucks the residual raw material in the serpentine tube 33 along the reflux pipe 36, and is recovered into the upper hopper 39 through the lifting pipe 38 for secondary processing. The heater 25 can provide a secondary heating effect on the flowing raw material to avoid blockage caused by cooling of the raw material in the reflux pipe 36.

[0029] Embodiment 2

[0030] See also Figure 1-6On the basis of the first embodiment, the utility model provides a technical solution: preferably, a mounting plate 6 is arranged on the top of the horizontal injection molding machine 1, a melting screw machine 31 is installed between the chassis 1 2 and the mounting plate 6, a chassis 2 7 is installed on the side of the mounting plate 6 away from the melting screw machine 31, a control panel is arranged on the front of the chassis 2 7, a heat preservation hole 8 is opened on the side wall of the chassis 2 7, an injection head 32 passes through the mounting plate 6 and extends into the heat preservation hole 8, a clamping device 9 is arranged on the top of the horizontal injection molding machine 1, the clamping device 9 is one of the components of the horizontal injection molding machine 1, and a fixed mold 10 and a movable mold are arranged in the clamping device 9 12. The fixed mold 10 is installed on the inner wall of the insulation hole 8. A groove 11 is provided on the side of the fixed mold 10 close to the injection head 32. The groove 11 corresponds to the serpentine tube 33. The serpentine tube 33 is embedded in the inner wall of the groove 11. The fixed mold 10 is provided with embedding holes corresponding to the injection tubes 34. Each injection tube 34 passes through the corresponding embedding holes. A cavity 13 corresponding to the injection tube 34 is provided on the side of the movable mold 12 close to the fixed mold 10. A cooling plate 14 is installed on the side of the movable mold 12 away from the cavity 13. The cooling plate 14 adopts a semiconductor cooling sheet, and its heat exchange end is located outside the movable mold 12 for heat dissipation and air replacement.

[0031] In this embodiment, a sealed state is formed in the insulation hole 8 through the mounting plate 6 and the fixed mold 10, which further ensures the heat of the raw material flowing in the serpentine tube 33. The serpentine tube 33 is installed in the embedded groove 11 to improve the stability of the installation of the serpentine tube 33 and avoid the problem of shaking caused by pressure during injection molding.

[0032] Working principle: The horizontal injection molding machine 1 uses CNC technology to melt plastics, which is a prior art equipment. The raw materials are put into the melting screw machine 31 from the upper hopper 39, and the motor in the chassis 2 is used to control the screw to rotate and push the raw materials. The temperature in the barrel of the melting screw machine 31 is raised to the melting point of the raw materials at the set temperature of the heater 4, and the raw materials are extruded through the injection head 32. The movable mold 12 is combined with the fixed mold 10 in the clamping device 9. The clamping device 9 is a part of the horizontal injection molding machine 1 and belongs to the prior art. After the raw materials are extruded, they flow along the serpentine tube 33 and first pass through the first The injection tube 34 performs injection molding into the corresponding cavity 13 to ensure sufficient injection pressure. After the first cavity 13 is filled, the first solenoid valve 35 is controlled to open, so that the raw material continues to flow to the second injection tube 34 and ensures sufficient injection pressure to fill the second cavity 13, and so on, until all four cavities 13 are filled. Each cavity 13 is blocked by the solenoid valve 35 during the injection molding process to ensure that there is only one empty cavity 13 to inject raw material each time injection molding, thereby improving the stability of injection molding and avoiding the problem of uneven pressure distribution and unstable pressure when injecting multiple cavities 13 at the same time.

[0033] The raw materials flow in sequence in a serpentine tube 33 to inject multiple cavities 13, which can improve the efficiency of continuous processing and the quality of the finished products of continuous processing. After the four cavities 13 are filled, the refrigeration plate 14 is used for active and efficient cooling. The refrigeration end of the refrigeration plate 14 covers the four cavities 13 at the same time and can be cooled synchronously, reducing the cooling time error and ensuring the cooling quality of each product when the one-time discharge is performed. After the injection molding is completed, the four solenoid valves 35 are opened, and the melting screw machine 31 no longer pushes the raw materials to generate pressure. Therefore, the lifting pump 37 can be used to suck the residual raw materials in the serpentine tube 33 along the reflux pipe 36, and the raw materials are recovered to the upper hopper 39 through the lifting pipe 38 for secondary processing, avoiding the problem of raw material waste. The heater 2 5 can provide a secondary heating effect on the flowing raw materials to avoid the problem of blockage caused by the cooling of the raw materials in the reflux pipe 36. The insulation hole 8 forms a sealed state through the mounting plate 6 and the fixed mold 10, which further ensures the heat of the raw materials when flowing in the serpentine tube 33, reduces the heat loss efficiency, and prevents the risk of raw materials cooling in the tube.

[0034] 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", "comprises" or any other variations 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.

[0035] 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 continuous molding device for mold parts processing, comprising a horizontal injection molding machine (1), characterized in that: The horizontal injection molding machine (1) is provided with a machine box (2), and a material making mechanism (3) is installed on the machine box (2). The material making mechanism (3) comprises a melting screw machine (31), and a port of the melting screw machine (31) is connected to an injection molding head (32), and the injection molding head (32) is connected to one end of a serpentine tube (33), and the serpentine tube (33) is connected to four injection molding tubes (34) in sequence, and four electric A magnetic valve (35), a reflux pipe (36) is connected to one end of the serpentine pipe (33) away from the injection head (32), a lift pump (37) is connected to one end of the reflux pipe (36) away from the serpentine pipe (33), a lift pipe (38) is connected to the outlet of the lift pump (37), an upper hopper (39) is installed on the melting screw machine (31), and the end of the lift pipe (38) away from the lift pump (37) is connected to the upper hopper (39).

2. A continuous forming device for mold parts processing according to claim 1, characterized in that: The melting screw machine (31) is provided with a heater 1 (4), and the reflux pipe (36) is provided with a heater 2 (5).

3. A continuous forming device for mold parts processing according to claim 2, characterized in that: A mounting plate (6) is provided on the top of the horizontal injection molding machine (1), and the melting screw machine (31) is installed between the machine case 1 (2) and the mounting plate (6).

4. A continuous forming device for mold parts processing according to claim 3, characterized in that: A second chassis (7) is installed on the side of the mounting plate (6) away from the melting screw machine (31), a control panel is arranged on the front of the second chassis (7), a heat preservation hole (8) is opened on the side wall of the second chassis (7), and the injection head (32) passes through the mounting plate (6) and extends into the heat preservation hole (8).

5. A continuous forming device for mold parts processing according to claim 4, characterized in that: A mold clamping device (9) is arranged on the top of the horizontal injection molding machine (1), a fixed mold (10) and a movable mold (12) are arranged inside the mold clamping device (9), the fixed mold (10) is installed on the inner wall of the heat preservation hole (8), and an embedding groove (11) is opened on the side of the fixed mold (10) close to the injection head (32).

6. A continuous molding device for mold parts processing according to claim 5, characterized in that: The embedding groove (11) corresponds to the serpentine tube (33), the serpentine tube (33) is embedded in the inner wall of the embedding groove (11), and the fixed mold (10) is provided with embedding holes corresponding to the injection tubes (34), and each of the injection tubes (34) passes through the corresponding embedding holes.

7. A continuous forming device for mold parts processing according to claim 6, characterized in that: A cavity (13) corresponding to the injection tube (34) is provided on a side of the movable mold (12) close to the fixed mold (10), and a cooling plate (14) is installed on a side of the movable mold (12) away from the cavity (13).

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