Hot plug type multi-station mold temperature controller

Abstract

The hot plug type multi-station mold temperature controller comprises a machine box with a movable base and a mold structure connected to one set of stations of the mold temperature controller, at least two sets of quick-change panels are distributed on the surface of the machine box, each set of quick-change panels comprises two sets of oil outlets and two sets of oil return ports, and the oil outlets are communicated with the oil return ports. The quick-change panel is connected with a mold pipeline through a self-sealing quick-change structure, an oil tank is installed on the top, close to the quick-change panel, in the machine box, a heater assembly, an oil pump and a flow divider assembly are sequentially arranged in the machine box in the flowing direction of heat conduction oil, and all the components form a closed loop through a machine box pipeline and the mold pipeline. RFID chips are embedded in the positions of second connectors of the mold pipelines and correspond to mold structures of different models, a cooler assembly opposite to the flow direction of heat conduction oil is installed in the flow divider assembly, and the top of the flow divider assembly is provided with a multi-way valve which is connected with a temperature control module which corresponds to the position of the quick-change panel and is installed on the inner wall of the machine box. Die replacement and maintenance in the non-stop state are achieved through the multi-station quick-change panel and the self-sealing quick-change structure on the quick-change panel, the production efficiency is improved, parameters are automatically read by combining the RFID chip on the connector at the end of the die pipeline, and temperature parameters suitable for the corresponding die are adjusted through the control system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mold temperature controllers, in particular to a hot-pluggable multi-station mold temperature controller. BACKGROUND

[0002] A mold temperature controller, also known as a mold temperature controller, was originally used in the temperature control industry of injection molds. With the development of the mechanical industry, its application has become more and more widespread. Now mold temperature controllers are generally divided into water temperature controllers and oil temperature controllers, and the temperature control accuracy can reach ±0.1℃. The use of mold temperature controllers in the die casting industry also has a lot of space, especially in the manufacture of magnesium alloys and aluminum alloys. Uneven or inappropriate mold temperature can cause the size of the casting to be unstable, and the ejection of the casting during production can cause deformation, resulting in hot pressure, sticking, surface depression, internal shrinkage, and thermal bubbles. The production cycle is also affected, such as filling time, cooling time, and spraying time, which can cause unstable variables. The service life of the mold can also be affected by the impact of overcooling and overheating, which can cause thermal cracking of expensive steel and accelerate its aging.

[0003] The application number CN117584405A discloses a variable frequency energy-saving mold temperature controller. The cooling return interface, cooling medium tank, circulating water pump, heating pipe, and cooling liquid outlet interface are connected in sequence through pipelines. The cooling liquid outlet interface connects the cooling liquid inlet of the external temperature control device, and the cooling return interface connects the cooling liquid outlet of the external temperature control device, thereby forming a cooling liquid circulating water path. The liquid inlet is connected to the heating pipe through a pipeline to supplement the cooling liquid. The liquid outlet is connected to the heating pipe through a pipeline to discharge liquid and air. The application is applied to plastic molding processing and can achieve efficient heating and precise variable frequency temperature control through the inlet and outlet water circulation water path. Traditional mold temperature controllers need to be emptied of system medium when replacing molds or maintaining, which is time-consuming and energy-consuming. SUMMARY

[0004] According to the above-mentioned technical problems, a hot-pluggable multi-station mold temperature controller is provided.

[0005] In order to achieve the above-mentioned purpose, the application discloses a hot-pluggable multi-station mold temperature controller, which comprises a cabinet with a movable base and a mold structure connected to one group of stations of the mold temperature controller, the surface of the cabinet is provided with at least two groups of quick-change panels, each group of quick-change panels comprises two groups of oil outlets and two groups of oil return ports, the quick-change panels are connected to the mold pipeline through a self-sealing quick-change structure, an oil tank is installed on the top of the inside of the cabinet close to the quick-change panel, a heater assembly, an oil pump and a flow divider assembly are sequentially arranged in the inside of the cabinet along the flow direction of the heat-conducting oil, a closed loop is formed between the components through the cabinet pipeline and the mold pipeline, an RFID chip is embedded and installed at the position of the second connecting head of the mold pipeline to correspond to different types of mold structures, a cooler assembly opposite to the flow direction of the heat-conducting oil is installed in the inside of the flow divider assembly, a multi-way valve is arranged on the top of the flow divider assembly and connected to the temperature control module installed on the inner wall of the cabinet.

[0006] Further, the self-sealing quick-change structure comprises a first connecting head arranged on the quick-change panel, an adjustable valve core is installed in the internal passage of the first connecting head, the adjustable valve core is connected to an adjusting module arranged on the surface of the first connecting head, a clamping block assembly driven by a pneumatic cylinder is arranged on the side of the first connecting head away from the quick-change panel, the clamping block assembly comprises two groups of clamping blocks with semicircular cross sections and is installed on the end of the first connecting head to clamp and fix the second connecting head on the mold pipeline.

[0007] Further, the second connecting head is in abutment with a planar sealing ring arranged in the inside of the first connecting head, a disc spring is arranged between the planar sealing ring and the stepped end face of the inside of the first connecting head, a one-way hole parallel to the axial direction of the first connecting head is arranged at the edge position of the stepped end face, a spring assembly and a pin column are arranged in the hole, a contact switch electrically connected to the electromagnetic valve of the control cylinder is installed at the center of the spring assembly.

[0008] Further, the inner diameter of the clamping block assembly in the completely closed state is smaller than the inner diameter of the first connecting head, a limiting block is arranged at the outer edge of the second connecting head to be in abutment with the clamping block, and the inner wall of the clamping block and the outer wall of the second connecting head are provided with matched one-way tooth groove and one-way tooth rack structures, a magnetic attraction layer is arranged at the position from the limiting block to the end face of the second connecting head to form magnetic attraction positioning with the inner wall of the first connecting head.

[0009] Further, the first connecting head is provided with a residual liquid recovery cavity connected to an external vacuum generator in the radial direction.

[0010] Further, the mold structure comprises a first mold and a second mold installed in cooperation, the surface of the quick-change panel sequentially comprises a first oil outlet, a second oil outlet, a first oil return port and a second oil return port in the horizontal direction, the first mold is connected to the second oil outlet and the first oil return port through a second pipeline and a third pipeline respectively, and the second mold is connected to the first oil outlet and the second oil return port through a first pipeline and a fourth pipeline respectively.

[0011] Further, the heater assembly comprises a cylinder and a heating module sealingly connected to the top of the cylinder, the bottom of the heating module is provided with electric heating pipes arranged in a cross shape in the cylinder, the surface of the heating module is connected to the oil tank through an oil inlet pipe and an oil return pipe, the lower half of the cylinder is connected to the oil pump, and the upper half of the cylinder is connected to the oil return port.

[0012] Further, the bottom side of the flow divider assembly is connected to the outlet of the oil pump through a machine case pipeline, the flow divider assembly is hollow and provided with a cooler assembly arranged in the flow divider assembly, the two ends of the cooler assembly are respectively connected to a cooling medium inlet and a cooling medium outlet arranged outside the machine case, and the external cooling medium is lowered through a spiral coil pipe and raised from a vertical pipe at the center of the spiral coil pipe and then flows out from the cooling medium outlet.

[0013] Compared with the prior art, the present application has the following beneficial effects: the present application discloses a hot-pluggable multi-station mold temperature controller, which realizes mold changing and maintenance under non-stop state through a multi-station quick-change panel and a self-sealing quick-change structure on the quick-change panel, improves production efficiency, automatically reads parameters of the mold by combining with an RFID chip on the end connector of the mold pipeline, and adjusts temperature parameters suitable for corresponding molds through a control system. BRIEF DESCRIPTION OF DRAWINGS

[0014] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0016] Figure 2 It is a schematic diagram of the quick-change panel of embodiment one of the present application.

[0017] Figure 3 It is a schematic diagram of the internal structure of the cooler assembly of the present application.

[0018] Figure 4 It is a schematic diagram of the structure of the heater assembly of the present application.

[0019] Figure 5 It is a schematic diagram of the self-sealing quick-change structure of embodiment two of the present application.

[0020] Figure 6 It is a schematic diagram of the structure of the heater assembly of the present application. Figure 5 It is a partial enlarged view of position A in the present application.

[0021] In the figure: 1 is the machine box; 10 is the machine box pipeline; 11 is the quick-change panel; 111 is the first oil outlet; 112 is the second oil outlet; 113 is the third oil outlet; 114 is the fourth oil outlet; 12 is the self-sealing quick-change structure; 12a is the adjustable valve core; 12b is the clamping block assembly; 12c is the pin column; 12d is the spring assembly; 12e is the flat sealing ring; 12f is the disc spring; 12g is the residual liquid recovery cavity; 121 is the first connecting head; 122 is the adjusting module; 13 is the temperature control module; 2 is the oil tank; 3 is the heater assembly; 4 is the oil pump; 5 is the flow divider assembly; 6 is the multi-way valve; 7 is the mold structure; 70 is the mold pipeline; 701 is the first pipeline; 702 is the second pipeline; 703 is the third pipeline; 704 is the fourth pipeline; 71 is the first mold; 72 is the second mold; 73 is the second connecting head; 731 is the limiting block; 732 is the one-way tooth groove and one-way rack structure; 733 is the magnetic attraction layer; 8 is the cooler assembly; 81 is the cooling medium inlet; 82 is the cooling medium outlet. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0023] As Figure 1 and Figure 2As shown, taking a double station as an example, the surface of the case 1 is distributed with two groups of quick-change panels 11, each group of quick-change panels 11 includes two groups of oil outlets and two groups of oil return ports, the quick-change panel 11 is connected with the mold pipeline 70 through the self-sealing quick-change structure 12, the oil tank 2 is installed at the top inside the case 1 close to the quick-change panel 11, the heater assembly 3, the oil pump 4 and the flow divider assembly 5 are sequentially arranged inside the case 1 along the flow direction of the heat conducting oil, the components are connected through the case pipeline 10 and the mold pipeline 70 to form a closed loop, the second connecting head 73 of the mold pipeline 70 is embedded with an RFID chip corresponding to different types of mold structures 7, the control system has a heat capacity database corresponding to multiple molds, when the mold is replaced, the mold ID is bound according to the RFID identification, the historical temperature control curve is automatically called through the AI controller, the RFID chip can store the cumulative plug-in frequency of the connector, and when the plug-in frequency exceeds the threshold value, the main control system sends a life warning signal, the cooler assembly 8 is installed inside the flow divider assembly 5 and flows in the opposite direction of the heat conducting oil, the temperature control module 13 corresponding to the position of the quick-change panel 11 and installed on the inner wall of the case 1 is arranged on the top of the flow divider assembly 5, PID control and mold heat capacity adaptive algorithm are adopted, mold changing and maintenance under non-stop state are realized through the quick-change panel of the multi-station and the self-sealing quick-change structure on the quick-change panel, production efficiency is improved, the RFID chip on the end connecting head of the mold pipeline automatically reads the parameters of the mold, the temperature parameters suitable for the corresponding mold are adjusted through the control system, and it is suitable for high-frequency mold changing production line.

[0024] As Figure 2 shown, in the embodiment one of the application, the adjusting module adopts a manual valve adjusting mechanism, the valve core is manually controlled to open and close, the mold structure 7 includes a first mold 71 and a second mold 72 which are installed in cooperation, the surface of the quick-change panel 11 is sequentially provided with a first oil outlet 111, a second oil outlet 112, a first oil return port 113 and a second oil return port 114 along the horizontal direction, the first mold 71 is connected with the second oil outlet 112 and the first oil return port 113 through the second pipeline 702 and the third pipeline 703 respectively, and the second mold 72 is connected with the first oil outlet 111 and the second oil return port 114 through the first pipeline 701 and the fourth pipeline 704 respectively.

[0025] As Figure 5 and Figure 6As shown, the second embodiment of the present application is different from the first embodiment in that the adjusting module is used to control the opening and closing of the valve core, the self-sealing quick-change structure 12 includes a first connecting head 121 arranged on the quick-change panel 11, the surface of which is covered with a nano-oleophobic coating, and an adjustable valve core 12a is arranged in the internal passage of the first connecting head 121, the adjustable valve core 12a is connected with an adjusting module 122 arranged on the surface of the first connecting head 121, a cylinder-driven clamping block assembly 12b is arranged on the side of the first connecting head 121 away from the quick-change panel 11, the clamping block assembly 12b is two groups of clamping blocks with semicircular cross sections and is arranged at the end of the first connecting head 121 to clamp and fix a second connecting head 73 on the mold pipeline 70, the second connecting head 73 abuts against a flat sealing ring 12e arranged in the first connecting head 121, a disc spring 12f is arranged between the flat sealing ring 12e and the stepped end face of the inner side of the first connecting head 121, a one-way hole is arranged at the edge position of the stepped end face and is arranged in axial parallel with the first connecting head 121, a spring assembly 12d and a pin column 12c are arranged in the hole, the spring assembly 12d is centrally provided with a contact switch electrically connected with the electromagnetic valve of the control cylinder, the inner diameter of the clamping block assembly 12b in the fully closed state is smaller than the inner diameter of the first connecting head 121, a limiting block 731 is arranged at the outer edge of the second connecting head 73 and abuts against the clamping block, and the inner wall of the clamping block and the outer wall of the second connecting head 73 are provided with matching one-way tooth groove and one-way rack structures 732, a magnetic attraction layer 733 is arranged at the position from the limiting block 731 to the end face of the second connecting head 73 and forms magnetic attraction positioning with the inner wall of the first connecting head 121, in the plugging process, the second connecting head is pre-positioned with the first connecting layer through the magnetic attraction layer, an axial force is applied to the second connecting head and abuts against the flat sealing ring and the disc spring, the pin column is pushed to move and the spring assembly is compressed, until the end face of the pin column is flush with the stepped end face of the inner side of the first connecting head, at this time, the contact switch in the center of the spring assembly generates an electrical signal and sends it to the electromagnetic valve of the cylinder outside the clamping block assembly, drives the clamping block assembly to move inward by a distance L1 so that the inner diameter of the clamping block assembly is smaller than the inner diameter of the first connecting head, after the axial force is removed, the spring assembly rebounds and pushes back the second connecting head, at this time, the inner end face of the clamping block assembly abuts against the limiting block, the cylinder continues to perform the clamping action to complete the movement of the remaining stroke L2, wherein the total stroke of the cylinder is equal to the sum of L1 and L2, the one-way tooth groove and the one-way rack structure are in full contact during the clamping process, and the radial clamping force of the cylinder ensures the connection strength of the second connecting head; the axial force applied to the second connecting head during the pipe pulling can also be realized.

[0026] A residual liquid recovery cavity 12g is radially arranged in the first connecting head 121 and is connected with an external vacuum generator, the residual liquid of the heat-conducting oil in the passage of the first connecting head is sucked through negative pressure, is connected to an oil tank after filtration treatment, avoids the leakage of the heat-conducting oil at the connection position, realizes the cyclic use, reduces the heat-conducting oil loss, and the valve core is closed through the control panel operation before the pipe pulling, and then the vacuum generator is activated to recover the residual liquid.

[0027] As Figure 4 shown, the heater assembly 3 includes a cylinder 33 and a heating module 31 sealed and connected to the top of the cylinder 33, the bottom of the heating module 31 is installed with electric heating pipes 32 arranged in the cylinder 33, the surface of the heating module 31 is connected to the oil tank 2 through the oil inlet pipe and the oil return pipe, the lower half of the cylinder 33 is connected to the oil pump 4, and the upper half of the cylinder 33 is connected to the oil return port.

[0028] As Figure 3 shown, the bottom side of the flow divider assembly 5 is connected to the outlet of the oil pump 4 through the case pipeline 10, the flow divider assembly 5 is hollow inside and is provided with a cooler assembly 8 inside the flow divider assembly 5, the two ends of the cooler assembly 8 are respectively connected to the cooling medium inlet 81 and the cooling medium outlet 82 located outside the case 1, the external cooling medium descends through the spiral coil and rises from the vertical pipe at the center of the spiral coil to flow out of the cooling medium outlet 82, the flow direction of the cooling medium is opposite to that of the heat conducting oil, which improves the cooling efficiency and ensures the temperature control accuracy of the mold temperature controller.

[0029] The working principle of the embodiment is as follows: the mold temperature controller moves to the production station, all valve cores of the adaptive quick change structure are in the closed state, the mold structure is sequentially connected to the quick change panel through the mold pipeline, the mold specification is determined by identifying the RFID chip on the second connecting head, when all adaptive quick change structures on the unified quick change panel are clamped and fixed by the clamping block assembly, the main control system can open the above-mentioned valve cores, and the temperature parameters of the corresponding mold are called, the heat conducting oil in the oil tank enters the cylinder from the oil inlet pipe, the liquid level does not exceed the case pipeline port connected to the oil return port, and is transported to the flow divider assembly through the oil pump, the flow divider assembly opens the multi-way valve core on the corresponding side according to the connection state of the quick change panel on the corresponding side, the heat conducting oil temperature is monitored through the temperature control module, and the heat conducting oil flows back to the cylinder from the oil return port through the mold structure in sequence; when the temperature in the mold is too low, the heat conducting oil temperature is increased after being heated to the specified temperature by the electric heating pipe; when the temperature in the mold is too high, the heat conducting oil temperature is reduced by the cooling medium entering the cooler assembly; when both groups of stations are worked by the mold structure, one of the quick change panels can be controlled to realize hot plug in the non-stop state.

[0030] Need to explain a few points are: first, in the description of the present application, need to explain is, unless otherwise specified and limited, the term "installation", "connected", "connection" should be broad understanding, can be mechanical connection or electrical connection, but also can be two elements inside the communication, can be directly connected, "up", "down", "left", "right" and so on, only for indicating the relative position relationship, when the absolute position of the described object changes, the relative position relationship may change; second, in this paper, such as first and second and other relationship terms are only used to distinguish one entity from another entity, and do not necessarily require or imply that these entities have any such actual relationship or order.

[0031] The above examples are only examples of the present application, and do not constitute a limitation on the scope of protection of the present application, any same or similar design as the present application belongs to the protection scope of the present application.

Claims

1. A hot-pluggable multi-station mold temperature controller, comprising a cabinet (1) with a movable base and a mold structure (7) connected to one of the stations of the mold temperature controller, characterized in that, The surface of the cabinet (1) is provided with at least two groups of quick-change panels (11), each group of quick-change panels (11) includes two groups of oil outlets and two groups of oil return ports, the quick-change panel (11) is connected with the mold pipeline (70) through a self-sealing quick-change structure (12), an oil tank (2) is installed at the top of the inside of the cabinet (1) near the quick-change panel (11), a heater assembly (3), an oil pump (4) and a flow divider assembly (5) are sequentially arranged inside the cabinet (1) along the flow direction of the heat conducting oil, the components are connected through the cabinet pipeline (10) and the mold pipeline (70) to form a closed loop, an RFID chip is embedded and installed at the position of the second connecting head (73) of the mold pipeline (70) to correspond to different mold structures (7), a cooler assembly (8) is installed inside the flow divider assembly (5) in the opposite direction of the heat conducting oil flow, a multi-way valve (6) is arranged at the top of the flow divider assembly (5) and connected with a temperature control module (13) installed on the inner wall of the cabinet (1) and corresponding to the position of the quick-change panel (11).

2. The hot-pluggable multi-station mold temperature controller according to claim 1, wherein, The self-sealing quick-change structure (12) includes a first connecting head (121) arranged on the quick-change panel (11), an adjustable valve core (12a) is installed in the internal passage of the first connecting head (121), the adjustable valve core (12a) is connected with an adjusting module (122) arranged on the surface of the first connecting head (121), a cylinder-driven clamping block assembly (12b) is arranged on the side of the first connecting head (121) away from the quick-change panel (11), the clamping block assembly (12b) is two groups of clamping blocks with semicircular cross sections and is installed at the end of the first connecting head (121) to clamp and fix the second connecting head (73) of the mold pipeline (70).

3. A hot-pluggable multi-station mold temperature controller according to claim 2, wherein The second connecting head (73) abuts against a planar sealing ring (12e) arranged inside the first connecting head (121), a disc spring (12f) is arranged between the planar sealing ring (12e) and the stepped end surface of the inner side of the first connecting head (121), a one-way hole parallel to the axial direction of the first connecting head (121) is arranged at the edge position of the stepped end surface, a spring assembly (12d) and a pin column (12c) are arranged in the hole, a contact switch electrically connected with the electromagnetic valve of the control cylinder is installed at the center of the spring assembly (12d).

4. The hot-pluggable multi-station mold temperature controller of claim 2, wherein, The inner diameter of the clamping block assembly (12b) in the completely closed state is smaller than the inner diameter of the first connecting head (121), a limiting block (731) is arranged at the outer edge of the second connecting head (73) and abuts against the clamping block, and the inner wall of the clamping block and the outer wall of the second connecting head (73) are provided with matched one-way tooth groove and one-way rack structures (732), a magnetic attraction layer (733) is arranged at the position from the limiting block (731) to the end surface of the second connecting head (73) to form magnetic attraction positioning with the inner wall of the first connecting head (121).

5. The hot-pluggable multi-station mold temperature controller of claim 2, wherein, The first connecting head (121) is radially provided with a residual liquid recovery cavity (12g) connected with an external vacuum generator.

6. The hot-pluggable multi-station mold temperature controller of claim 1, wherein, The mold structure (7) comprises a first mold (71) and a second mold (72) which are installed in cooperation, and the surface of the quick-change panel (11) is sequentially provided with a first oil outlet (111), a second oil outlet (112), a first oil return port (113) and a second oil return port (114) in a horizontal direction, the first mold (71) is connected with the second oil outlet (112) and the first oil return port (113) through a second pipeline (702) and a third pipeline (703) respectively, and the second mold (72) is connected with the first oil outlet (111) and the second oil return port (114) through a first pipeline (701) and a fourth pipeline (704) respectively.

7. The hot-pluggable multi-station mold temperature controller of claim 1, wherein, The heater assembly (3) comprises a cylinder (33) and a heating module (31) which is sealingly connected with the top of the cylinder (33), the bottom of the heating module (31) is provided with electric heating pipes (32) which are crossly arranged in the cylinder (33), the surface of the heating module (31) is connected with the oil tank (2) through an oil inlet pipe and an oil return pipe, the lower half of the cylinder (33) is connected with the oil pump (4), and the upper half of the cylinder (33) is connected with the oil return port.

8. The hot-pluggable multi-station mold temperature controller of claim 1, wherein, The bottom side of the flow divider assembly (5) is connected with the outlet of the oil pump (4) through a case pipeline (10), the flow divider assembly (5) is hollow and is provided with a cooler assembly (8) which is arranged in the flow divider assembly (5), the two ends of the cooler assembly (8) are connected with a cooling medium inlet (81) and a cooling medium outlet (82) which are arranged outside the case (1), and the external cooling medium is lowered through the spiral coil pipe and is raised from the vertical pipe at the center of the spiral coil pipe and then flows out from the cooling medium outlet (82).

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