Injection molding full-flow mold temperature controller

Abstract

The embodiment of the invention provides an injection molding full-flow mold temperature controller, and relates to the technical field of mold temperature controllers, the injection molding full-flow mold temperature controller comprises a machine body, a circulating pump is fixedly installed in the machine body, a water inlet pipe and a water outlet pipe are connected to the circulating pump, a water tank is installed in the machine body, a mold return pipe is connected to the water tank, the water inlet pipe communicates with the water tank, and a mold water inlet pipe is connected to the water outlet pipe; a circulating pipe is installed in the water tank, a heat exchange medium is arranged in the circulating pipe, the two ends of the circulating pipe extend out of the machine body, and the circulating pipe is connected with the corresponding cooler or heater according to actual needs; an installation hopper pulled out from the side face of the water tank is slidably arranged at the bottom of the water tank; a through groove communicated with the corresponding water inlet pipe is formed in the bottom of the installation hopper; and a filtering system for filtering water in the water tank is arranged in the mounting hopper, and a sealing mechanism is arranged on the filtering system, so that the normal use of the mold temperature controller is not influenced in the process of pulling out the mounting hopper and replacing the filtering system. The device has the advantages that the water temperature is convenient to adjust, and normal use of the device is not affected when the filtering system is replaced.

Description

Technical Field

[0001] The present invention relates to the technical field of mold temperature controllers, and particularly to an injection molding full-flow mold temperature controller. Background Art

[0002] When plastic raw materials are injected into a mold, the temperature of the mold directly affects the cooling rate and curing process of the plastic. If the mold temperature is too high, the plastic cools too slowly, which may cause component deformation or dimensional instability; if the mold temperature is too low, the plastic cools too quickly, which may cause an increase in internal stress of the component and affect its mechanical properties. Therefore, a mold temperature controller ensures uniform cooling of the plastic by precisely controlling the temperature, thereby improving the quality and consistency of the components.

[0003] A mold temperature controller mainly controls the temperature of the mold by circulating heating (usually oil or water). During operation, a heater heats the heat exchange medium to a set temperature, and then a pump transports the heat exchange medium to the mold for heating. When it is necessary to lower the mold temperature, a cooler cools the heat exchange medium, and then the pump sends the heat exchange medium back to the mold for cooling.

[0004] In existing mold temperature controllers, a cooler or a heater is usually separately provided in the mold temperature controller, and the heat exchange medium is heated and cooled by the cooler and the heater. Since a large amount of heat is generated during the operation of the cooler and the heater, it will affect the temperature of the heat exchange medium during cooling or heating, and a separate heat dissipation system needs to be provided to ensure the normal operation of the cooler and the heater. At the same time, when cleaning the internal circulation pipeline of the mold in an existing mold temperature controller, the mold temperature controller needs to be stopped first, and then disassembled for internal cleaning, which not only affects the normal operation of the equipment, but also has the problems of large operation difficulty and troublesome cleaning. Summary of the Invention

[0005] In order to solve the above problems, the present application provides an injection molding full-flow mold temperature controller.

[0006] The injection molding full-flow mold temperature controller provided by the present application adopts the following technical solutions:

[0007] An injection molding full-flow mold temperature controller, including a machine body, a circulation pump is fixedly installed in the machine body, a water inlet pipe and a water outlet pipe are connected to the circulation pump, a water tank is installed in the machine body, and a mold return pipe for returning the heat exchange medium to the water tank is connected to the water tank. The water inlet pipe is communicated with the water tank, and a mold water inlet pipe for allowing the heat exchange medium to enter the mold is connected to the water outlet pipe. A circulation pipe is installed in the water tank, a heat exchange medium is arranged in the circulation pipe, the circulation pipe extends outside the machine body at both ends and is connected to a corresponding cooler or heater according to actual needs. A mounting bucket that can be pulled out from the side of the water tank is slidably arranged at the bottom of the water tank, a through groove communicated with the corresponding water inlet pipe is opened at the bottom of the mounting bucket, and a filtering system for filtering the water in the water tank is arranged in the mounting bucket. A sealing mechanism is arranged on the filtering system, and the normal use of the mold temperature controller is not affected during the process of pulling out the mounting bucket and replacing the filtering system.

[0008] Preferably, a water replenishing pipe and a drain pipe are connected to the bottom of the water tank, communication holes communicated with the corresponding water replenishing pipe and drain pipe are opened at the bottom of the mounting bucket, and a switch plate is slidably arranged at the bottom of the mounting bucket for closing the corresponding through groove and communication hole. When the mounting bucket is pulled out, under the action of the friction force at the bottom of the water tank, the switch plate closes the corresponding through groove and communication hole.

[0009] Preferably, the circulation pipe is wound into a spiral structure with multiple inner and outer layers, and a number of arc-shaped protrusions that protrude outward and are used to increase the contact area are arranged on the circulation pipe.

[0010] Preferably, two arc-shaped protrusions on the opposite inner walls of the circulation pipe are taken as a group, and the arc-shaped protrusions in the same group are arranged in a staggered manner along the axis direction of the circulation pipe. The arc-shaped protrusion includes an arc portion and flat portions symmetrically arranged on both sides of the arc portion. The two flat portions are tangent to the arc portion and perpendicular to each other. The plane where the flat portion on the downstream side of the arc-shaped protrusion is perpendicular to the plane where the flat portion on the downstream side of the other arc-shaped protrusion in the same group is located, and this plane passes through the joint of the flat portion on the downstream side of the other arc-shaped protrusion in the same group and the circulation pipe.

[0011] Preferably, the filtering system includes an elastic sponge, a fine filter screen, a medium filter screen and a coarse filter screen which are installed in the mounting bucket from bottom to top.

[0012] Preferably, the sealing mechanism includes a sealing strip embedded in the opening on the side wall of the water tank. The upper end surface at the opening position of the side wall of the water tank is rotatably connected with an abutting roller. The side wall of the abutting roller is rotatably and sealingly connected with the side wall of the opening of the water tank. Sealing grooves are provided on the upper end surfaces of the two side walls of the installation hopper facing the opening. A sealing plate is slidably arranged in the sealing grooves. The sealing plate is slidably and sealingly connected with the sealing grooves. A sealing spring for pushing the sealing plate to move upward is fixed in the sealing grooves. An arc groove for clamping the abutting roller and sealingly connecting with the abutting roller is provided on the upper end surface of the sealing plate. A sealing component is provided on the filtering system to prevent water in the water tank from overflowing from the joint of the abutting roller and the coarse filter screen during the process of pulling out the installation hopper.

[0013] Preferably, the coarse filter screen includes two mutually attached filter plates. A number of through holes penetrating the upper and lower filter plates are provided on the filter plates. The sealing component includes an abutting bolt threadedly connected to the sealing plate. The abutting bolt is rotatably connected to the lower filter plate and drives the lower filter plate to move horizontally. The lower filter plate can move vertically relative to the abutting bolt, so that the through holes on the upper filter plate and the lower filter plate are arranged in a staggered manner. The upper end surface of the upper filter plate is higher than the highest position of the arc groove when the arc groove is sealed with the abutting roller. An arc-shaped guiding surface is provided on the side wall of the upper filter plate. When the installation hopper is pulled outwards towards the outside of the water tank, under the action of the guiding surface, the upper filter plate first moves downwards and then horizontally. The abutting roller abuts against the upper end surface of the upper filter plate to prevent water in the water tank from overflowing.

[0014] Preferably, the end of the die return pipe is connected with a vertically arranged connecting pipe. A number of connecting branch pipes surrounding the circulating pipe are connected to the connecting pipe. A number of water outlet branch pipes are connected to the connecting branch pipes.

[0015] Preferably, a Venturi tube is connected to the water supply pipe. One end of the Venturi tube is connected to the water supply pipe and the other end is connected to the die return pipe. A three-way solenoid valve is connected to the joint of the water supply pipe and the Venturi tube. During normal operation, the water tank, the Venturi tube and the die return pipe are communicated, and the water in the water tank flows to the die return pipe under the action of the Venturi tube.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: Under the action of the circulation pump, the water in the water tank enters the mold, heats or cools the mold, and then flows back into the water tank. According to actual production needs, the corresponding heater or cooler is selected, and through the circulation pipe, the internal heat exchange medium exchanges heat with the water in the water tank to make the water in the water tank meet the usage requirements. An arc-shaped protrusion is provided on the circulation pipe to improve the heat exchange efficiency. Since the water in the water tank needs to be filtered regularly, during the filtering process, by pulling the installation bucket and driving the filtering system to move out of the water tank, when pulling the installation bucket, the through holes on the filter plate are closed, and the abutting rollers are pressed tightly against the upper end surfaces of the filter plate and the installation bucket to prevent the water in the water tank from overflowing. After replacing the filtering system, the installation bucket is pushed to the designated position in the water tank. During the process of replacing the filtering system, the normal use of the device will not be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of an embodiment of the present application.

[0018] Figure 2 is the structural schematic diagram for showing the circulation pipe in the machine body.

[0019] Figure 3 is the cross-sectional view of the circulation pipe.

[0020] Figure 4 is the overall structural schematic diagram of the water tank.

[0021] Figure 5 is Figure 4 the enlarged structural schematic diagram of part A in

[0022] DESCRIPTION OF THE REFERENCE NUMERALS: 1, machine body; 2, water tank; 3, mold return pipe; 4, circulation pump; 5, water inlet pipe; 6, water outlet pipe; 7, mold water inlet pipe; 8, circulation pipe; 9, arc-shaped protrusion; 10, installation bucket; 11, elastic sponge; 12, fine filter screen; 13, medium filter screen; 14, filter plate; 15, abutting roller; 16, sealing plate; 17, sealing spring; 18, abutting bolt; 19, connecting pipe; 20, connecting branch pipe; 21, water outlet branch pipe; 22, make-up water pipe; 23, drain pipe; 24, switch plate; 25, Venturi tube; 26, three-way solenoid valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The terms used in the following embodiments are for the purpose of describing specific embodiments only and are not intended to limit the present application. As used in the specification and appended claims of the present application, the singular forms "a", "an", "the", "above-mentioned", "said", and "this" are also intended to include expressions such as "one or more", unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of the present application, "at least one" and "one or more" mean one, two, or more than two. The term "and / or" is used to describe the association relationship of associated objects and indicates that three relationships can exist; for example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0024] Reference to "one embodiment" or "some embodiments" described in this specification means that a specific feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the present application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc., which appear in different places in this specification, do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "comprising", "including", "having", and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0025] The following is further described in detail with reference to the attached Figures 1-5 This application is further described in detail.

[0026] An injection molding full-flow mold temperature controller, comprising a machine body 1 and Figure 2 , a water tank 2 is installed on the machine body 1, a mold return pipe 3 is connected to the water tank 2, a circulation pump 4 is fixedly installed in the machine body 1 by bolts, a water inlet pipe 5 and a water outlet pipe 6 are connected to the circulation pump 4, the water inlet pipe 5 communicates with the water tank 2 at the bottom of the water tank 2, a mold water inlet pipe 7 is connected to the water outlet pipe 6, and under the action of the circulation pump 4, the water in the water tank 2 sequentially enters the mold from the water outlet pipe 6 and the mold water inlet pipe 7, and then returns to the water tank 2 through the mold return pipe 3.

[0027] Refer to Figure 1 and Figure 2, a circulation pipe 8 is installed in the water tank 2, a heat exchange medium is arranged in the circulation pipe 8, the circulation pipe 8 is wound into a spiral structure with multiple inner and outer layers, both ends of the circulation pipe 8 extend outside the machine body 1 and are connected to corresponding coolers or heaters outside the machine body 1. According to the needs of the mold, the corresponding cooler and heater outside the machine body 1 are selected for connection. During the connection process, the heat exchange medium in the circulation pipe 8 can be exported, and the heat exchange medium with a similar temperature can be replaced. Or the cooler and heater can be connected in the same circulation loop, and the corresponding cooler or heater is controlled to work according to the needs, so as to achieve the purpose of controlling the temperature of the heat exchange medium.

[0028] Refer to Figure 2 and Figure 3 , a number of outwardly convex arc-shaped protrusions 9 are arranged on the circulation pipe 8. The arc-shaped protrusions 9 are used to increase the contact area between the heat exchange medium in the cooling circulation pipe 8 and the water in the water tank 2, and improve the heat exchange rate. Two relatively arc-shaped protrusions 9 on the inner wall of the circulation pipe 8 are a group, and the arc-shaped protrusions 9 in the same group are arranged in a staggered manner along the axis direction of the circulation pipe 8. The arc-shaped protrusion 9 includes an arc portion and flat portions symmetrically arranged on both sides of the arc portion. The two flat portions are tangent to and perpendicular to the arc portion. The plane of the flat portion on the downstream side of the arc-shaped protrusion 9 is perpendicular to the plane of the flat portion on the downstream groove side of another arc-shaped protrusion 9 in the same group, and this plane passes through the joint of the downstream flat portion of another arc-shaped protrusion 9 in the same group and the circulation pipe 8.

[0029] When the heat exchange medium flows in the circulation pipe 8, part of the heat exchange medium enters the arc-shaped protrusion 9. The heat exchange medium impacts the downstream flat portion of the arc-shaped protrusion 9 and moves along this flat portion towards the arc-shaped protrusion 9 downstream in the same group. During the flow process, it will push the heat exchange medium at the middle position of the circulation pipe 8 towards the downstream inner arc-shaped protrusion 9, converting the laminar heat exchange medium into a turbulent state, increasing the contact time between the heat exchange medium and the inner wall of the circulation pipe 8, and thus improving the heat exchange efficiency of the heat exchange medium.

[0030] Refer to Figure 2 and Figure 4 , an opening is provided on the bottom side wall of the water tank 2, and an installation hopper 10 is slidably arranged at the bottom of the water tank 2. The installation hopper 10 can be pulled out from the opening on the side wall of the water tank 2. A through groove is opened at the bottom of the installation hopper 10, and the through groove is communicated with the water inlet pipe 5. A filtering system for filtering the water in the water tank 2 is arranged in the installation hopper 10, and a sealing mechanism is arranged on the filtering system. During the process of pulling out the installation hopper 10, the sealing mechanism prevents the water in the water tank 2 from flowing out from the side wall opening position, facilitating the replacement of the filtering system.

[0031] Refer to Figure 4 and Figure 5, the filtration system includes an elastic sponge 11, a fine filter screen 12, a medium filter screen 13, and a coarse filter screen that are installed in the installation hopper 10 from bottom to top. The pore sizes of the fine filter screen 12, the medium filter screen 13, and the coarse filter screen decrease sequentially from bottom to top. The sealing mechanism includes a sealing strip embedded in the inner wall of the opening on the side of the water tank 2. The upper end surface of the opening position on the side wall of the water tank 2 is rotatably connected with a contact roller 15. The inner wall of the opening of the water tank 2 is in sealing and rotational connection with the upper side wall of the contact roller 15. The two end surfaces of the contact roller 15 are in sealing and rotational connection with the inner side wall of the opening of the water tank 2. Sealing grooves are provided on the upper end surfaces of the two side walls of the installation hopper 10 facing the opening. A sealing plate 16 is slidably arranged in the sealing groove. The sealing plate 16 is in sliding and sealing connection with the sealing groove. A sealing spring 17 is fixed in the sealing groove. The upper end of the sealing spring 17 is fixed on the sealing plate 16 and pushes the sealing plate 16 to move upward. An arc-shaped groove is provided on the upper end surface of the sealing plate 16. When the installation hopper 10 is installed in the water tank 2, under the action of the sealing spring 17, the sealing plate 16 moves upward, and the contact roller 15 is located in the arc-shaped groove. The contact roller 15 is in sealing connection with the sealing groove. For further sealing, sealing strips are provided on the upper end surface of the installation hopper 10 and inside the sealing groove to prevent water leakage during relative movement.

[0032] Refer to Figure 4 and Figure 5 , a sealing component is provided on the filtration system to prevent water in the water tank 2 from overflowing from the joint of the contact roller 15 and the coarse filter screen during the process of extracting the installation hopper 10. The coarse filter screen includes two mutually fitting filter plates 14, which are in sliding and sealing connection between the upper and lower filter plates 14 to prevent water from flowing out between the two filter plates 14. A number of through holes penetrating the upper and lower filter plates 14 are provided on the filter plates 14. The sealing component includes a contact bolt 18 threadedly connected to the sealing plate 16. The contact bolt 18 horizontally penetrates the sealing plate 16. The end of the contact bolt 18 is rotatably connected to the lower filter plate 14, and the lower filter plate 14 can move in the vertical direction relative to the contact filter. By rotating the contact bolt 18, the contact bolt 18 drives the lower filter plate 14 to move in the horizontal direction. The through holes on the upper filter plate 14 and the lower filter plate 14 are arranged in a staggered manner for closing the through holes.

[0033] When the installation hopper 10 is installed, the upper end surface of the upper filter plate 14 is higher than the highest position of the arc-shaped groove when it is sealed with the abutting roller 15. An arc-shaped guiding surface is provided on the side wall of the upper filter plate 14. When the installation hopper 10 is pulled outwards towards the outside of the water tank 2, under the action of the guiding surface, the upper filter plate 14 first moves downwards and then moves horizontally along with the installation hopper 10. The abutting roller 15 always abuts against the upper end of the upper filter plate 14, and the abutting roller 15 rolls relative to the filter plate 14. On the one hand, it is used to seal the joint between the abutting roller 15 and the filter plate 14. On the other hand, the setting of the abutting roller 15 converts sliding into rolling, avoiding scraping all the impurities above the filter plate 14 to the bottom of the water tank 2 during the process of removing the installation hopper 10. When the filtration system is transferred outside the water tank 2, the sealing plate 16 on the other side of the installation hopper 10 closely fits with the abutting roller 15 under the action of the sealing spring 17 to prevent the water in the water tank 2 from overflowing. After replacing the filtration system and then pushing the installation hopper 10 back to the starting position, the through holes on the upper and lower filter plates 14 are aligned. Even if there is a small amount of water overflowing from the side wall of the water tank 2, it will not affect the normal operation of the mold temperature controller.

[0034] Refer to Figure 3 and Figure 4 , a water replenishing pipe 22 and a drain pipe 23 are connected to the bottom of the water tank 2. Communication holes communicating with the corresponding water replenishing pipe 22 and drain pipe 23 are provided at the bottom of the installation hopper 10. A switch plate 24 abuting against the bottom wall of the water tank 2 is slidably arranged at the bottom of the installation hopper 10. The switch plate 24 is used to close the corresponding communication holes and through grooves. When the installation hopper 10 is pulled outwards towards the outside of the water tank 2, under the action of the frictional force, the switch plate 24 moves in the direction of closing the communication holes and through grooves to prevent water from flowing out from the positions of the communication holes and through grooves. During the installation process of the installation hopper 10, under the action of the frictional force, the switch plate 24 moves in the reverse direction of opening the communication holes and through grooves.

[0035] Refer to Figure 1 and Figure 3 , a vertically arranged connecting pipe 19 is connected to the end of the mold return pipe 3. A plurality of connecting branch pipes 20 are connected to the connecting pipe 19. The plurality of connecting branch pipes 20 surround the circulation pipe 8. A plurality of water outlet branch pipes 21 are connected to the connecting branch pipes 20. The water flowing back from the mold return pipe 3 flows out from the connecting branch pipes 20 and comes into full contact with the circulation pipe 8 to improve the heat exchange efficiency.

[0036] Refer to Figure 1 and Figure 2, a water replenishing pipe 22 is connected with a Venturi tube 25. One end of the Venturi tube 25 is connected to the water replenishing pipe 22, and the other end is connected to the mold return pipe 3. A three-way solenoid valve 26 is connected to the joint of the water replenishing pipe 22 and the Venturi tube 25. During normal operation, the water tank 2, the Venturi tube 25 and the mold return pipe 3 are communicated. Under the action of the Venturi effect, the water in the water tank 2 flows back into the mold return pipe 3 through the Venturi tube 25. On the one hand, it is convenient to stir the water in the water tank 2. On the other hand, it makes the water cycle and fully conducts heat exchange. When the water in the water tank 2 is insufficient, the three-way solenoid valve 26 can be opened to directly replenish water into the water tank 2 through the water replenishing pipe 22, or water can enter the Venturi tube 25 through the water replenishing pipe 22 and then flow into the water tank 2 through the mold return pipe 3.

[0037] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. Any equivalent modification or change made by those of ordinary skill in the art according to the content disclosed in the present invention shall be included in the protection scope recorded in the claims.

Claims

1. An injection molding full-flow mold temperature controller, comprising a machine body (1), a circulation pump (4) is fixedly installed inside the machine body (1), a water inlet pipe (5) and a water outlet pipe (6) are connected to the circulation pump (4), and it is characterized in that: A water tank (2) is installed inside the machine body (1). A mold return pipe (3) for returning the heat exchange medium to the water tank (2) is connected to the water tank (2). The water inlet pipe (5) communicates with the water tank (2). A mold water inlet pipe (7) for allowing the heat exchange medium to enter the mold is connected to the water outlet pipe (6). A circulation pipe (8) is installed inside the water tank (2). A heat exchange medium is arranged inside the circulation pipe (8). The circulation pipe (8) extends outside the machine body (1) at both ends and is connected to a corresponding cooler or heater according to actual needs. A mounting hopper (10) that can be pulled out from the side of the water tank (2) is slidably arranged at the bottom of the water tank (2). A through groove communicating with the corresponding water inlet pipe (5) is formed at the bottom of the mounting hopper (10). A filtering system for filtering the water in the water tank (2) is arranged inside the mounting hopper (10). A sealing mechanism is arranged on the filtering system, so that the normal use of the mold temperature controller is not affected during the process of pulling out the mounting hopper (10) and replacing the filtering system.

2. The injection molding full-flow mold temperature controller according to claim 1, wherein: A water replenishing pipe (22) and a drain pipe (23) are connected to the bottom of the water tank (2). Communication holes communicating with the corresponding water replenishing pipe (22) and drain pipe (23) are formed at the bottom of the mounting hopper (10). A switch plate (24) is slidably arranged at the bottom of the mounting hopper (10) for closing the corresponding through groove and communication hole. When the mounting hopper (10) is pulled out, under the friction force at the bottom of the water tank (2), the switch plate (24) closes the corresponding through groove and communication hole.

3. The all-flow mold temperature controller for injection molding according to claim 2, wherein: The circulation pipe (8) is wound into a spiral structure with multiple inner and outer layers. A number of arc-shaped protrusions (9) that protrude outwards and are used for increasing the contact area are arranged on the circulation pipe (8).

4. The injection molding full-flow mold temperature controller according to claim 3, wherein: Two arc-shaped protrusions (9) opposite to each other on the inner wall of the circulation pipe (8) form a group. The arc-shaped protrusions (9) in the same group are arranged in a staggered manner along the axis direction of the circulation pipe (8). The arc-shaped protrusion (9) includes an arc portion and flat portions symmetrically arranged on both sides of the arc portion. The two flat portions are tangent to the arc portion and perpendicular to each other. The plane where the downstream flat portion of the arc-shaped protrusion (9) is located is perpendicular to the plane where the downstream flat portion of another arc-shaped protrusion (9) in the same group is located, and this plane passes through the joint of the downstream flat portion of another arc-shaped protrusion (9) in the same group and the circulation pipe (8).

5. The injection molding full-flow mold temperature controller according to claim 4, characterized in that: The filtering system includes an elastic sponge (11), a fine filter mesh (12), a medium filter mesh (13) and a coarse filter mesh which are installed in the mounting hopper (10) from bottom to top.

6. The all-flow mold temperature controller for injection molding according to claim 5, characterized in that: The sealing mechanism includes a sealing strip embedded in the opening on the side wall of the water tank (2). The upper end surface at the opening position of the side wall of the water tank (2) is rotatably connected with an abutting roller (15). The side wall of the abutting roller (15) is rotatably and sealingly connected with the side wall of the opening of the water tank (2). Sealing grooves are formed in the upper end surfaces of the two side walls of the mounting hopper (10) facing the opening. A sealing plate (16) is slidably arranged in the sealing grooves. The sealing plate (16) is slidably and sealingly connected with the sealing grooves. A sealing spring (17) for pushing the sealing plate (16) to move upward is fixed in the sealing grooves. An arc-shaped groove for clamping and sealingly connecting with the abutting roller (15) is formed in the upper end surface of the sealing plate (16). A sealing component is arranged on the filtering system to prevent water in the water tank (2) from overflowing from the joint between the abutting roller (15) and the coarse filter screen during the process of pulling out the mounting hopper (10).

7. The all-flow mold temperature controller for injection molding according to claim 6, wherein: The coarse filter screen includes two mutually attached filter plates (14). A number of through holes penetrating the upper and lower filter plates (14) are formed in the filter plates (14). The sealing component includes an abutting bolt (18) threadedly connected to the sealing plate (16). The abutting bolt (18) is rotatably connected to the lower filter plate (14) and drives the lower filter plate (14) to move horizontally, so that the through holes on the upper filter plate (14) and the lower filter plate (14) are arranged in a staggered manner. The lower filter plate (14) can move vertically relative to the abutting bolt (18). The upper end surface of the filter plate (14) located above is higher than the highest position of the arc-shaped groove when the arc-shaped groove is sealed with the abutting roller (15). An arc-shaped guiding surface is formed on the side wall of the filter plate (14) located above. When pulling the mounting hopper (10) to move outward from the water tank (2), under the action of the guiding surface, the upper filter plate (14) first moves downward and then horizontally. The abutting roller (15) abuts against the upper end surface of the upper filter plate (14) to prevent water in the water tank (2) from overflowing.

8. The injection molding full-flow mold temperature controller according to claim 7, wherein: The end of the die return pipe (3) is connected with a vertically arranged connecting pipe (19). A number of connecting branch pipes (20) surrounding the circulating pipe (8) are connected to the connecting pipe (19). A number of water outlet branch pipes (21) are connected to the connecting branch pipes (20).

9. The injection molding full-flow mold temperature controller according to claim 8, wherein: A Venturi tube (25) is connected to the water supply pipe (22). One end of the Venturi tube (25) is connected to the water supply pipe (22), and the other end is connected to the die return pipe (3). A three-way solenoid valve (26) is connected to the joint of the water supply pipe (22) and the Venturi tube (25). During normal operation, the water tank (2), the Venturi tube (25) and the die return pipe (3) are communicated, and the water in the water tank (2) flows to the die return pipe (3) under the action of the Venturi tube (25).

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