A gradient temperature adjustment system for a tray forming mold

Abstract

The utility model relates to Tray forming mould field discloses a gradient temperature adjusting system of Tray forming mould, including lower mould, upper mould, cavity, heat insulating plate, first heat dissipation hole, second heat dissipation hole, through -hole, the upper mould sets up in the top of lower mould, the cavity is set up in the inside of upper mould, the heat insulating plate swing joint is in the inside of cavity, first heat dissipation hole and second heat dissipation hole are set up in the upper and lower sides of upper mould respectively, and the inside of first heat dissipation hole and second heat dissipation hole all is penetrated to cavity, the through -hole sets up in the top of heat insulating plate, and the size and distribution situation of through -hole and first heat dissipation hole and second heat dissipation hole are same. The utility model discloses the size of coinciding part of through -hole and heat dissipation hole can carry out gradient regulation to cooling range, thereby can adjust the cooling time length of work piece according to actual use demand, reached the beneficial effect of improving the applicability of mould.

Description

Technical Field

[0001] This utility model relates to the field of Tray molding molds, and in particular to a gradient temperature control system for Tray molding molds. Background Technology

[0002] Tray forming molds are special molds used to process various pallet products. Their core function is to process raw materials such as plastic into pallet products with specific shapes, sizes and structures through specific molding processes. They mainly include fixed molds and moving molds, and the raw materials are shaped by merging the upper and lower molds and cooling.

[0003] Patent publication number CN206633365U discloses a novel mold temperature regulating machine. This machine includes an indirect heating section comprising a heat transfer tube for media flow and a spiral electric heating tube wrapped around the outer surface of the heat transfer tube. This novel mold temperature regulating machine eliminates direct contact between the electric heating tube and the circulating media, completely preventing damage to the heating tube from deteriorating water quality. The media flows within the stainless steel heat transfer tube, which has no heating tube inside, resulting in low fluid flow resistance and excellent heat transfer, indirectly improving the yield rate of injection molded products. The heating tube can be controlled in sections, saving energy. The square cross-section of the electric heating tube increases the contact area and improves thermal efficiency. Simultaneously, the reduced surface power extends the service life of the heating tube. The use of seamless stainless steel tubing for the heat transfer tube ensures high temperature, high pressure, and corrosion resistance, further extending its service life.

[0004] However, the aforementioned patents only use medium circulation for cooling, so the cooling range is constant and cannot be adjusted in gradient according to actual production needs. This makes it impossible to control the cooling time of the workpiece, resulting in reduced applicability of the mold. Utility Model Content

[0005] The main objective of this invention is to provide a gradient temperature control system for Tray molding dies, which can effectively solve the problem in the above-mentioned patents that only rely on medium circulation for cooling, resulting in a constant cooling range, inability to adjust the cooling range gradient according to actual production needs, and inability to control the cooling time of the workpiece, thus reducing the applicability of the mold.

[0006] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is as follows: A gradient temperature control system for a Tray molding die includes a lower die, an upper die, a cavity, a heat insulation plate, a first heat dissipation hole, a second heat dissipation hole, and a through hole; The upper mold is disposed on top of the lower mold, and the cavity is formed inside the upper mold; The heat insulation plate is movably connected to the inside of the cavity; The first heat dissipation hole and the second heat dissipation hole are respectively opened on the upper and lower sides of the upper mold, and the inner sides of the first heat dissipation hole and the second heat dissipation hole both extend into the cavity; The through hole is located on the top of the heat insulation plate, and the through hole has the same size and distribution as the first heat dissipation hole and the second heat dissipation hole.

[0007] Preferably, a geared motor is installed inside the cavity, and the output shaft of the geared motor is fixedly connected to a lead screw; The heat insulation plate has a threaded hole on its side, and the threaded hole is threadedly connected to the lead screw. A limiting strip is fixedly connected to the side of the heat insulation plate perpendicular to the threaded hole, and a sliding groove is provided on the inner wall of the cavity to be movably connected to the limiting strip.

[0008] Preferably, a feed pipe is fixedly connected to the top center of the upper mold, the bottom of the feed pipe extends through to the bottom surface of the upper mold, and a valve is provided inside the feed pipe; A slot is provided in the middle of the heat insulation board, and the slot is fitted outside the feed pipe; The bottom of the upper mold is fixedly connected to a positioning post, and the top of the lower mold is provided with a positioning hole that is movably connected to the positioning post. The positioning post is driven by a hydraulic rod.

[0009] The beneficial effects of this utility model are: This invention allows for gradient adjustment of the cooling rate by adjusting the size of the overlapping portion of the through hole and the heat dissipation hole. This enables the adjustment of the cooling time of the workpiece according to actual usage requirements, thereby improving the applicability of the mold. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the gradient temperature control system for this Tray molding die; Figure 2 This is a schematic diagram of the upper mold structure of the gradient temperature control system for this Tray molding die; Figure 3 This is a schematic diagram of the heat insulation plate structure of the gradient temperature control system of this Tray molding die.

[0011] Explanation of reference numerals in the attached drawings: 1. Lower mold; 2. Upper mold; 3. Positioning pin; 4. Feed pipe; 5. First heat dissipation hole; 6. Cavity; 7. Heat insulation plate; 8. Second heat dissipation hole; 9. Through hole; 10. Hole; 11. Limiting strip; 12. Gear motor; 13. Lead screw. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0013] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0014] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0015] This application designs a gradient temperature control system for a Tray molding die, including a lower die 1, an upper die 2, a cavity 6, a heat insulation plate 7, a first heat dissipation hole 5, a second heat dissipation hole 8, and a through hole 9; The upper mold 2 is set on top of the lower mold 1, the cavity 6 is opened inside the upper mold 2, and the lower mold 1 is equipped with a water cooling system for cooling and shaping the workpiece. The heat insulation plate 7 is movably connected inside the cavity 6. The heat insulation plate 7 and the cavity 6 have the same thickness, which can prevent gaps from appearing between the heat insulation plate 7 and the cavity 6, thereby improving the heat insulation effect. The heat insulation plate is used to seal the first heat dissipation hole 5 and the second heat dissipation hole 8 to prevent heat loss and thus reduce the cooling rate. The first heat dissipation hole 5 and the second heat dissipation hole 8 are respectively opened on the upper and lower sides of the upper mold 2, and the inner sides of the first heat dissipation hole 5 and the second heat dissipation hole 8 both penetrate into the cavity 6. The first heat dissipation hole 5 and the second heat dissipation hole 8 are evenly distributed on the surface of the upper mold 2, so that the heat can be dissipated evenly. The through hole 9 is opened on the top of the heat insulation plate 7. The through hole 9 has the same size and distribution as the first heat dissipation hole 5 and the second heat dissipation hole 8. When the through hole 9 coincides with the first heat dissipation hole 5 and the second heat dissipation hole 8, the heat dissipation amplitude is the maximum. By adjusting the position of the through hole 9, the heat insulation plate 7 can cover the first heat dissipation hole 5 and the second heat dissipation hole 8 to different degrees, thereby adjusting the heat dissipation amplitude in a gradient.

[0016] Furthermore, a geared motor 12 is installed inside the cavity 6, and a lead screw 13 is fixedly connected to the output shaft of the geared motor 12. A controller for controlling the geared motor 12 is provided on the outside of the upper mold 2. The heat insulation plate 7 has a threaded hole on its side, which is threaded to the lead screw 13. The heat insulation plate 7 can be moved by the lead screw 13 and the threaded hole, thereby adjusting the position of the through hole 9. A limiting strip 11 is fixedly connected to the side of the heat insulation plate 7 perpendicular to the threaded hole. A sliding groove is provided on the inner wall of the cavity 6, which is movably connected to the limiting strip 11. The limiting strip 11 and the sliding groove limit the heat insulation plate 7, so that the heat insulation plate 7 always maintains a radial translational movement trajectory.

[0017] Furthermore, a feed pipe 4 is fixedly connected to the top center of the upper mold 2. The bottom of the feed pipe 4 extends through to the bottom surface of the upper mold 2. A valve is installed inside the feed pipe 4. The feed pipe 4 is used to inject molten raw materials into the lower mold 1, and the flow rate is regulated and sealed through the valve. A slot 10 is provided in the middle of the heat insulation plate 7. The slot 10 is fitted outside the feed pipe 4. The slot 10 can prevent the heat insulation plate 7 from colliding with the feed pipe 4. The bottom of the upper mold 2 is fixedly connected to a positioning post 3, and the top of the lower mold 1 is provided with a positioning hole that is movably connected to the positioning post 3. The positioning post 3 is driven by a hydraulic rod.

[0018] Working principle: Molten raw materials are injected into the lower mold 1 through the feed pipe 4. Then, the positioning pin 3 descends to merge the upper mold 2 and the lower mold 1, and the cooling and molding process begins. At this time, the first heat dissipation hole 5 and the second heat dissipation hole 8 are in contact with the closed part of the heat insulation plate 7, so that the first heat dissipation hole 5 and the second heat dissipation hole 8 are in a closed state. When it is necessary to increase the cooling range, the reduction motor 12 drives the lead screw 13 to rotate, which drives the heat insulation plate 7 to move through the threaded hole, so that the through hole 9 gradually moves to the position that communicates with the first heat dissipation hole 5 and the second heat dissipation hole 8, thereby providing auxiliary heat dissipation through the first heat dissipation hole 5 and the second heat dissipation hole 8. The gradient temperature can be adjusted by adjusting the size of the overlapping part of the through hole 9 and the first heat dissipation hole 5 and the second heat dissipation hole 8.

[0019] The above embodiments are only some embodiments of this utility model, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the protection scope of this utility model.

Claims

1. A gradient temperature control system for a tray molding die, characterized in that: Includes a lower mold (1), an upper mold (2), a cavity (6), a heat insulation plate (7), a first heat dissipation hole (5), a second heat dissipation hole (8), and a through hole (9); The upper mold (2) is located on top of the lower mold (1), and the cavity (6) is opened inside the upper mold (2); The heat insulation plate (7) is movably connected to the inside of the cavity (6); The first heat dissipation hole (5) and the second heat dissipation hole (8) are respectively opened on the upper and lower sides of the upper mold (2), and the inner sides of the first heat dissipation hole (5) and the second heat dissipation hole (8) both penetrate into the cavity (6). The through hole (9) is opened on the top of the heat insulation plate (7), and the through hole (9) is the same in size and distribution as the first heat dissipation hole (5) and the second heat dissipation hole (8).

2. The gradient temperature control system for a Tray molding die according to claim 1, characterized in that... A geared motor (12) is installed inside the cavity (6), and a lead screw (13) is fixedly connected to the output shaft of the geared motor (12). The heat insulation plate (7) has a threaded hole on its side, and the threaded hole is threadedly connected to the lead screw (13); The heat insulation plate (7) is fixedly connected to a limiting strip (11) on the side perpendicular to the threaded hole, and the inner wall of the cavity (6) is provided with a sliding groove that is movably connected to the limiting strip (11).

3. The gradient temperature control system for a Tray molding die according to claim 2, characterized in that... The upper mold (2) is fixedly connected to the middle of the top of the upper mold (2), and the bottom of the upper mold (2) extends through to the bottom surface of the upper mold (2). A valve is provided inside the upper mold (2). A slot (10) is provided in the middle of the heat insulation plate (7), and the slot (10) is fitted outside the feed pipe (4); The bottom of the upper mold (2) is fixedly connected to a positioning column (3), and the top of the lower mold (1) is provided with a positioning hole that is movably connected to the positioning column (3). The positioning column (3) is driven by a hydraulic rod.

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