A mold capable of monitoring material shrinkage

Abstract

The present application relates to the field of mold technology, and specifically discloses a mold capable of monitoring the shrinkage of a material, including a lower mold mechanism and an upper mold mechanism that can be molded on the lower mold mechanism, the upper mold mechanism and the lower mold mechanism are used for the production of parts; and also includes: a cavity wall is arranged in the inner wall of the upper mold mechanism and the lower mold mechanism, and is used for the molding of the finished product area of ​​the part; the edge blocking protrusion is fixedly arranged in the upper mold mechanism in an enclosed form; a monitoring component can be telescopically arranged in one of the upper mold mechanism or the lower mold mechanism; wherein the monitoring component is located in the inner cavity of the upper mold mechanism in the molding state of the part, and does not enter the cavity wall; the monitoring component extends into the inner cavity of the cavity wall in the cooling state of the part, contacts the edge of the part, and monitors the shrinkage change information of the part in all directions, and finds defective products according to the shrinkage change information. The present invention ensures the dimensional accuracy and shape stability after molding, and controls the yield rate.

Description

Technical Field

[0001] The invention relates to the technical field of moulds, in particular to a mould capable of monitoring the shrinkage of materials. Background Art

[0002] In modern industrial manufacturing, with the rapid development of intelligent connected vehicles and other advanced products, the demand for parts with complex structures and multifunctionality is gradually increasing. Especially in the field of plastic mold technology, how to accurately control the cooling and shrinkage of materials during the molding process has become a technical problem that needs to be solved urgently; existing mold technology usually faces quality problems caused by inaccurate component deformation monitoring, insufficient cooling control, and uneven shrinkage; in addition, traditional plastic parts molds cannot adapt well to the needs of parts with complex geometric shapes. There is a lack of deformation monitoring mechanism in the material molding of automobile seat supports. The existing technology is difficult to ensure the dimensional accuracy and shape stability after molding, and the yield rate is difficult to control. Summary of the invention

[0003] The embodiment of the present application provides a mold that can monitor the shrinkage of materials, the main purpose of which is to ensure the dimensional accuracy and shape stability after molding and to control the yield rate.

[0004] To achieve the above-mentioned purpose, the present application provides a mold capable of monitoring the shrinkage of a material, comprising a lower mold mechanism and an upper mold mechanism capable of clamping on the lower mold mechanism, wherein the upper mold mechanism and the lower mold mechanism are used for producing parts; and further comprising:

[0005] A cavity wall, arranged in the inner wall of the upper mold mechanism and the lower mold mechanism, for forming the finished product area of ​​the component;

[0006] The edge blocking protrusion is fixedly arranged in the upper mold mechanism in an enclosed form and is located outside the cavity wall to form the boundary of the waste edge of the component;

[0007] A monitoring component, which is telescopically arranged in the upper mold mechanism or the lower mold mechanism, and is located between the cavity wall and the edge blocking protrusion, and can be telescopically moved toward the component;

[0008] When the component is in a molding state, the monitoring component is located in the inner cavity of the upper mold mechanism and does not enter the cavity wall; when the component is in a cooling state, the monitoring component extends into the inner cavity of the cavity wall, contacts the edge of the component, and monitors the shrinkage change information of the component in all directions, and detects defective products based on the shrinkage change information.

[0009] In a feasible embodiment, an oil cooling mechanism is also provided in the upper mold mechanism, and the oil cooling mechanism is used to cool the upper mold mechanism and the lower mold mechanism. The oil cooling mechanism includes: a plurality of liquid cooling columns, which are arranged in the inner wall of the mold cavity wall in sequence and equidistantly along the edge direction of the mold cavity wall; a liquid inlet pipe, one end of which is connected to the inner cavity of the liquid cooling column; a liquid return pipe, one end of which is connected to the inner cavity of the liquid cooling column, and the other end of which is connected to the liquid inlet pipe to a heat exchanger device and a circulating pump.

[0010] In a feasible embodiment, the monitoring component includes: a support frame bar, which is arranged in the inner cavity of the upper mold mechanism and can move towards or away from the cavity wall; a deformation monitoring piece, which is fixedly installed on one side of the support frame bar close to the cavity wall; and can be retracted and arranged in the inner wall of the upper mold mechanism; a telescopic device, including a telescopic end, and the telescopic end of the telescopic device is connected to the support frame bar.

[0011] In a feasible embodiment, the component has at least one bending portion to form a component area with at least two different extension directions; the monitoring component includes: at least two support frame bars, both of which can be close to or away from the component areas with different extension directions and are arranged in the inner cavity of the upper mold mechanism; a deformation monitoring piece, fixedly installed on one side of the support frame bar close to the cavity wall; and can be retracted and arranged in the inner wall of the upper mold mechanism; a crossbeam, fixedly arranged in the middle of each of the support frame bars; a first tilting rod, fixedly connected to one of the crossbeams and perpendicular to the corresponding component area; a second tilting rod, fixedly connected On the other crossbeam, and perpendicular to the corresponding component area; a first connecting seat, fixedly mounted on the first tilting rod at an angle perpendicular to the lower mold mechanism; a second connecting seat, fixedly mounted on the second tilting rod at an angle perpendicular to the lower mold mechanism; a moving rod, with both ends movably connected to the first connecting seat and the second connecting seat respectively; the moving rod can move vertically in the inner cavity of the upper mold mechanism; a telescopic device, fixed on the upper mold mechanism, the telescopic end of the telescopic device is connected to the moving rod, so that the deformation monitoring piece can move perpendicular to the corresponding component area and contact the waste edge of the component.

[0012] In a feasible implementation manner, a movement gap is provided between the two support frame bars, and the movement gap corresponds to the position of the bending portion; and the deformation monitoring pieces at the two movement gaps are provided with inclined notches.

[0013] In a feasible embodiment, the deformation monitoring sheet also includes: a sheet body, each of which has a sharp edge facing the cavity wall, and the sheet body contacts or penetrates into the waste edge under the monitoring state, and the deformation monitoring sheet moves through the waste edge after the monitoring is completed; a plurality of resistive stress sensing parts, which are arranged in the inner wall of the sheet body and located on the side away from the cavity wall, and can monitor the cooling shrinkage parameters of the component; a signal line, which is located in the inner cavity of the support frame bar, and the signal line is used to transmit the monitoring signals of the plurality of resistive stress sensing parts.

[0014] In a feasible embodiment, a plurality of piercing portions are equidistantly arranged on the sheet body, the piercing portions protrude from the sheet body, and the outer ends of the piercing portions are sharp sheet structures; the resistive stress sensing portion is arranged between the piercing portions and the sheet body, and the piercing portions are used to obtain the cooling shrinkage parameters of the component in the form of penetration, and to provide a pulling force in the opposite direction of the shrinkage to maintain the contraction shape of the component.

[0015] In a feasible embodiment, the upper mold mechanism is also provided with a data interface and a control module connected to the data interface, and the control module is connected to the signal line for obtaining monitoring signals of all the resistive stress sensing parts; a deformation variable monitoring threshold is provided in the control module, and the control module is also connected to a buzzer.

[0016] The present application provides a mold capable of monitoring material shrinkage, which introduces a monitoring component, a cavity wall and an edge sealing protrusion, thereby realizing multi-directional real-time monitoring and precise control of the material forming process; enabling the monitoring component to extend into the cavity during the cooling process of the component, contact the edge of the waste material, and capture the deformation information caused by cooling shrinkage in real time, thereby ensuring the accuracy of monitoring the shrinkage of the component edges; effectively improving the real-time feedback on changes in component shrinkage, so that the system can promptly judge and discover unqualified finished products, avoiding the errors caused by traditional reliance on manual inspection; in addition, through the sealing effect of the edge sealing protrusion and the cavity wall, the mold can form a stable spatial boundary in the material process, ensuring precise control of the component forming size; on the whole, the present technical solution greatly improves the efficiency of mold production and the stability of product quality, reduces the scrap rate, optimizes the production process, and is particularly suitable for the production of components with complex shapes and high requirements for the cooling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the exploded structure of a mold capable of monitoring material shrinkage provided in an embodiment of the present application is shown;

[0018] Figure 2 A schematic structural diagram of an upper mold mechanism provided in an embodiment of the present application is shown;

[0019] Figure 3 A schematic diagram of the structure of an oil cooling assembly provided in an embodiment of the present application is shown;

[0020] Figure 4 A schematic diagram showing the position of a monitoring component provided in an embodiment of the present application is shown;

[0021] Figure 5 A schematic diagram of the structure of the monitoring component provided in an embodiment of the present application is shown;

[0022] Figure 6 A schematic diagram of the structure of the telescopic device and components provided in an embodiment of the present application is shown;

[0023] Figure 7 A schematic diagram of the structure of the crossbeam provided in an embodiment of the present application is shown;

[0024] Figure 8 A schematic diagram showing the structure of a sheet provided in an embodiment of the present application is shown;

[0025] Fig. 9 A schematic diagram of the structure of the piercing portion provided in an embodiment of the present application is shown;

[0026] Fig.10 A schematic diagram showing the contraction direction of a component provided in an embodiment of the present application is shown.

[0027] In the figure: 1. lower mold mechanism, 2. upper mold mechanism, 3. component, 4. oil cooling mechanism, 5. data interface, 21. cavity wall, 22. edge sealing protrusion, 23. monitoring component, 31. good area, 32. waste edge, 33. puncture hole, 34. cutting part, 41. liquid cooling column, 42. liquid inlet pipe, 43. liquid return pipe, 231. support frame bar, 232. deformation monitoring sheet, 233. crossbeam, 234. first tilting rod, 235. second tilting rod, 236. first connecting seat, 237. second connecting seat, 238. moving rod, 239. telescopic device, 2321. sheet body, 2322. puncture part, 2323. resistive stress sensing part, 2324. signal line. DETAILED DESCRIPTION

[0028] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0029] 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 that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.

[0030] In modern industrial manufacturing, with the rapid development of intelligent connected vehicles and other advanced products, the demand for parts with complex structures and multifunctionality is gradually increasing. Especially in the field of plastic mold technology, how to accurately control the cooling and shrinkage of materials during the molding process has become a technical problem that needs to be solved urgently. Existing mold technology usually faces quality problems caused by inaccurate component deformation monitoring, insufficient cooling control, and uneven shrinkage. In addition, traditional plastic parts molds cannot adapt well to the needs of parts with complex geometric shapes, especially for parts with multiple bends. Existing technology makes it difficult to ensure dimensional accuracy and shape stability after molding, and the yield rate is difficult to control.

[0031] In view of this, an embodiment of the present application provides a mold that can monitor the shrinkage of materials, the main purpose of which is to ensure the dimensional accuracy and shape stability after molding and to control the yield rate.

[0032] See also Figures 1 to 10 As shown, a mold capable of monitoring material shrinkage according to an embodiment of the present application comprises a lower mold mechanism 1 and an upper mold mechanism 2 capable of being clamped on the lower mold mechanism 1, and the upper mold mechanism 2 and the lower mold mechanism 1 are used for the production of a component 3;

[0033] The mold also includes: a cavity wall 21, an edge blocking protrusion 22 and a monitoring component 23. The cavity wall 21 is arranged in the inner walls of the upper mold mechanism 2 and the lower mold mechanism 1, and is used for molding the finished product area of ​​the component 3; the edge blocking protrusion 22 is fixedly arranged in the upper mold mechanism 2 in an enclosed form, and is located on the outside of the cavity wall 21, and is used to form the boundary of the waste edge 32 of the component 3; the monitoring component 23 can be telescopically arranged in the upper mold mechanism 2 or the lower mold mechanism 1, and is located between the cavity wall 21 and the edge blocking protrusion 22, and can be telescopically moved toward the component 3; wherein the monitoring component 23 is located in the inner cavity of the upper mold mechanism 2 when the component 3 is in the molding state, and does not enter the cavity wall 21; the monitoring component 23 extends into the inner cavity of the cavity wall 21 when the component 3 is in the cooling state, contacts with the edge of the component 3, and monitors the multi-directional shrinkage change information of the component 3, and detects defective products based on the shrinkage change information.

[0034] The setting of the mold provided in the present application completes the molding and monitoring of the component 3 through the cooperation of the upper mold mechanism 2 and the lower mold mechanism 1, and is specifically used for the production of the support structure under the car seat; specifically, the cavity wall 21 is located inside the inner wall of the upper and lower mold mechanisms 1, and is used to form the finished product area of ​​the component 3, ensuring that the shape of the component 3 is accurately molded into the target shape; the edge blocking protrusion 22 is fixed to the outer side of the upper mold mechanism 2, and when the material (for example, polyurethane material) is released into the cavity wall 21, the mold is quickly closed to form a sealing structure, and the edge blocking protrusion 22 plays the role of blocking the edge of the cavity, defining the spatial range of the molding; the monitoring component 23 is installed between the upper mold mechanism 2 or the lower mold mechanism 1, and when the mold is closed, the monitoring component 23 is installed between the upper mold mechanism 2 and the lower mold mechanism 1. It remains in a retracted state during the molding process of component 3 and does not interfere with the molding; after component 3 is cooled, the monitoring component 23 extends into the cavity wall 21, contacts the edge of component 3, especially contacts the waste edge 32, and detects in real time the changes of component 3, especially the edges at different positions of component 3 due to shrinkage during the cooling process; through this contact monitoring, the device can capture the multi-directional shrinkage information of component 3, and judge whether component 3 has defects or unqualified conditions through changes in shrinkage; therefore, the mold has a monitoring function, which can detect defective products in the finished product in time through dynamic monitoring and precise positioning, avoid errors in subsequent manual inspection, and significantly improve production efficiency and the stability of finished product quality.

[0035] like Figures 1 to 3As shown, in some examples, further, an oil cooling mechanism 4 is provided in the upper mold mechanism 2, and the oil cooling mechanism 4 is used to cool the upper mold mechanism 2 and the lower mold mechanism 1, and the oil cooling mechanism 4 includes: a plurality of liquid cooling columns 41, a liquid inlet pipe 42 and a liquid return pipe 43, and the plurality of liquid cooling columns 41 are arranged in the inner wall of the cavity wall 21 in sequence and equidistantly along the edge direction of the cavity wall 21; one end of the liquid inlet pipe 42 is connected to the inner cavity of the liquid cooling column 41; one end of the liquid return pipe 43 is connected to the inner cavity of the liquid cooling column 41, and the other end is connected to the liquid inlet pipe 42 to the heat exchanger device and the circulating pump.

[0036] In the mold provided in this example, the oil cooling mechanism 4 effectively cools the upper and lower mold mechanisms 1 through multiple liquid cooling columns 41, liquid inlet pipes 42 and liquid return pipes 43; the liquid cooling columns 41 are evenly arranged in the upper and lower mold cavity walls 21 along the edges of the cavity walls 21, and local heat exchange is achieved through the internal liquid circulation, thereby enabling the entire upper mold mechanism 2 and the lower mold mechanism 1 to achieve an overall uniform cooling function, thereby facilitating the molding of the component 3 and its removal from the mold; the liquid inlet pipe 42 introduces the cooling liquid into the inner cavity of the liquid cooling column 41, and the cooling liquid absorbs the heat generated by the mold in the liquid cooling column 41. After the heat is released, it flows back through the return pipe 43 to form a closed loop; the return pipe 43 then sends the hot liquid to the heat exchanger device for cooling, and with the help of the circulating pump, the cooled liquid is pumped back into the liquid inlet pipe 42 to ensure the continuous flow of the coolant; in this way, through the distributed cooling setting of multiple liquid cooling columns 41, the high temperature in the mold forming process can be quickly taken away, local overheating can be avoided, and the thermal stability of the mold can be improved; the uniformity of the molding quality of component 3 is ensured, and poor shrinkage and structural defects of component 3 caused by uneven temperature are prevented, thereby improving production efficiency and finished product qualification rate.

[0037] like Figure 2 , Figures 4 to 10 As shown, in some examples, further, the monitoring component 23 includes: a support frame bar 231, a deformation monitoring piece 232 and a telescopic device 239; the support frame bar 231 is arranged in the inner cavity of the upper mold mechanism 2 and can move towards or away from the cavity wall 21; the deformation monitoring piece 232 is fixedly installed on the side of the support frame bar 231 close to the cavity wall 21; and can be retracted and arranged in the inner wall of the upper mold mechanism 2; the telescopic device 239 includes a telescopic end, and the telescopic end of the telescopic device 239 is connected to the support frame bar 231.

[0038] In this example, it should be noted that the monitoring component 23 realizes accurate monitoring of the deformation of the internal component 3 of the mold through the cooperation of the support frame bar 231, the deformation monitoring piece 232 and the telescopic device 239; specifically, the support frame bar 231, under the push of the telescopic device 239, can approach or move away from the component 3 along the direction of the cavity wall 21, wherein in the link before the component 3 is formed, the deformation monitoring piece 232 and the support frame bar 231 are both located in the upper mold mechanism 2, ensuring that the monitoring piece enters the cavity after the component 3 is formed to monitor its deformation; the deformation monitoring piece 232 is fixed on the support frame bar 231 on the side close to the cavity wall 21, and when the component 3 is in a cooling state, the support frame bar 231 is extended under the action of the telescopic device 239, and the monitoring piece is close to the edge of the component 3, so as to capture the deformation information generated during the cooling process of the component 3 in real time; the telescopic end of the telescopic device 239 is directly connected to the supporting frame bar 231, and the movement of the monitoring piece is controlled by the telescopic action, so as to drive the deformation monitoring piece 232 to be in the corresponding working position before and after the molding of the component 3, so as to complete the deformation monitoring without affecting the normal molding of the component 3; therefore, through the setting of the deformation monitoring piece 232, the shrinkage change of the component 3 can be collected, defective products can be found in time, the real-time and accuracy of the monitoring can be improved, the errors of manual detection can be avoided, the stability of product quality can be ensured, and the overall production efficiency can be improved.

[0039] like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, in some examples, further, the component 3 has at least one bending portion, forming a region of the component 3 having at least two different extension directions; Figure 1 and Figure 6 As shown, the molding of component 3 is not a flat shape, but is adapted to the shape of the car seat to produce a wrapping structure that better fits the human body.

[0040] In this example, the monitoring assembly 23 includes: at least two support frame bars 231, a deformation monitoring piece 232, a crossbeam 233, a first tilting rod 234, a second tilting rod 235, a first connecting seat 236, a second connecting seat 237, a moving rod 238 and a telescopic device 239, at least two support frame bars 231 can be close to or away from the component 3 area with different extension directions, and are arranged in the inner cavity of the upper mold mechanism 2; the deformation monitoring piece 232 is fixedly installed on one side of the support frame bar 231 close to the cavity wall 21; and can be retracted and arranged in the inner wall of the upper mold mechanism 2; the crossbeam 233 is fixedly arranged in the middle of each support frame bar 231; the first tilting rod 234 is fixedly connected to one of the crossbeams 233, and is perpendicular to the corresponding part Part 3 area; the second tilting rod 235 is fixedly connected to another crossbeam 233 and is perpendicular to the corresponding part 3 area; the first connecting seat 236 is fixedly mounted on the first tilting rod 234 at an angle perpendicular to the lower mold mechanism 1; the second connecting seat 237 is fixedly mounted on the second tilting rod 235 at an angle perpendicular to the lower mold mechanism 1; the two ends of the moving rod 238 are respectively movably connected to the first connecting seat 236 and the second connecting seat 237; the moving rod 238 can move vertically in the inner cavity of the upper mold mechanism 2; the telescopic device 239 is fixed on the upper mold mechanism 2, and the telescopic end of the telescopic device 239 is connected to the moving rod 238, so that the deformation monitoring piece 232 can move perpendicular to the corresponding part 3 area and contact the waste edge 32 of the part 3.

[0041] In this example, a deformation monitoring solution suitable for complex components 3 with multiple bending parts is further proposed; specifically, it includes multiple support frame bars 231 respectively approaching or moving away from the component 3 areas in different directions. If there are three components 3 in different directions, there are three corresponding strip support frames, and they correspond one to one with the positions of the components 3 in different directions. Through the adjustment of the support frame bars 231, the deformation monitoring piece 232 can accurately approach or move away from the area where the component 3 is formed, ensuring comprehensive monitoring in different extension directions of the component 3; the crossbeam 233 is fixed in the middle of each support frame bar 231 to provide stability for the support frame bar 231, and the first inclined rod 234 and the second inclined rod 235 are respectively connected to different crossbeams 233, perpendicular to their respective corresponding component 3 areas, so that the deformation monitoring piece 232 can maintain verticality with the components 3 in different directions. Direct contact and synchronous control; the first connecting seat 236 and the second connecting seat 237 are respectively fixed on the two tilting rods to ensure the vertical connection between the tilting rods and the lower mold mechanism 1, forming a stable synchronous drive structure; the two ends of the moving rod 238 are respectively movably connected to the two connecting seats, and the deformation monitoring piece 232 is vertically moved to the area of ​​the component 3 in each direction through the telescopic action control of the telescopic device 239, ensuring that the deformation monitoring piece 232 can accurately contact the waste edge 32 of the component 3 during the cooling process, and collect the deformation data of the component 3 according to the actual contact point; in this way, the solution provided in this example can cover multiple different directions of the component 3, and improve the detection accuracy of the complex-shaped component 3 through multi-directional deformation monitoring, especially the deformation monitoring of the bending part, which can better identify local defects caused by cooling or other factors, and effectively improve the quality control and qualified rate of the finished product.

[0042] like Figure 6 As shown, in some examples, further, a movement gap is provided between the two support frame bars 231, and the movement gap corresponds to the position of the bending portion; and the deformation monitoring pieces 232 at the two movement gaps are provided with inclined notches.

[0043] It can be understood that in this example, by setting a movement gap between the two support frame bars 231, the mutual interference between the support frame bars 231 and the deformation monitoring pieces 232 during the movement process is effectively avoided; the movement gap corresponds to the position of the bending part of the component 3, ensuring that the support frame bars 231 can bypass the complex bending parts during the extension and retraction process without affecting the accurate monitoring of the component 3; at the same time, the deformation monitoring piece 232 located at the movement gap is provided with an inclined notch. The setting of the inclined notch notches not only prevents the collision between the deformation monitoring pieces 232, but also ensures that after the monitoring pieces are fully extended, the two deformation monitoring pieces 232 can contact each other on the surface of the waste edge 32 of the component 3, thereby achieving full coverage monitoring of the waste edge 32; through this scheme, the monitoring piece can act more comprehensively on the surface areas of different positions of the waste edge 32 of the component 3, thereby improving the accuracy and integrity of deformation monitoring, and helping to capture the slight shrinkage changes of the component 3 during the cooling process, and ultimately ensuring the overall quality of the component 3 and the consistency of the molding effect.

[0044] like Figures 8 to 10 As shown, in some examples, further, the deformation monitoring sheet 232 also includes: a sheet body 2321, a plurality of resistive stress sensing parts 2323 and a signal line 2324, each sheet body 2321 has a sharp edge facing the cavity wall 21, the sheet body 2321 contacts or penetrates into the waste edge 32 in the monitoring state, and the deformation monitoring sheet 232 moves through the waste edge 32 after the monitoring is completed; a plurality of resistive stress sensing parts 2323 are arranged in the inner wall of the sheet body 2321 and are located on the side away from the cavity wall 21, so as to monitor the cooling shrinkage parameters of the component 3; the signal line 2324 is located in the inner cavity of the support frame bar 231, and the signal line 2324 is used to transmit the monitoring signals of the plurality of resistive stress sensing parts 2323.

[0045] It is worth mentioning that the deformation monitoring sheet 232 provided in this example realizes accurate monitoring of the shrinkage deformation of the component 3 during the cooling process through the sheet 2321, the resistive stress sensing part 2323 and the signal line 2324; specifically, the edge of the sheet 2321 is sharp, ensuring that it can accurately contact or penetrate into a part of the waste edge 32 of the component 3 under the monitoring state, and the sheet 2321 is perpendicular to the shrinkage direction of the component 3, and can capture accurate deformation data; a plurality of resistive stress sensing parts 2323 are arranged in the sheet 2321, which are arranged on the outer wall of the sheet 2321 on the side with better sensing direction, corresponding to the shrinkage direction, through The shrinkage parameters of component 3 during the cooling process are detected by sensing stress changes; when component 3 shrinks during cooling, the resistance of the sensing part changes accordingly, recording the stress changes of component 3 during cooling; the signal line 2324 is hidden in the inner cavity of the support frame bar 231, responsible for transmitting the monitoring signals of multiple resistive stress sensing parts 2323 to the external control system, thereby forming data feedback; finally, real-time monitoring of the cooling process of component 3 is achieved, especially in shrinkage detection of edges and complex shapes; this structure ensures real-time control feedback of the quality of the finished product during the cooling and shrinking process, and enhances the intelligent monitoring capability of the production line;

[0046] It can also be understood that the sharp setting of the sheet 2321 in the deformation monitoring sheet 232 in the present device, in addition to the above-mentioned ability to penetrate into part of the waste edge 32 to achieve better monitoring function, can also be directly used as a tool for cutting the waste edge 32. When the present device completes the monitoring of the shrinkage amount of the component 3, the monitoring result is qualified, and the current component 3 is a good part, then the sheet 2321 can continue to extend under the control of the telescopic device 239, and complete the cutting action according to the position of the cutting part 34, and completely cut the waste edge 32 from the good area 31, and then the upper mold mechanism 2 is opened, and the staff can directly obtain a complete molded component 3, thereby improving the production efficiency of the component 3 processing.

[0047] like Fig. 9 As shown, based on the previous example, further, a plurality of piercing portions 2322 are equidistantly arranged on the sheet 2321, the piercing portions 2322 protrude from the sheet 2321, and the outer ends of the piercing portions 2322 are sharp sheet structures; the resistive stress sensing portion 2323 is arranged between the piercing portion 2322 and the sheet 2321, and the piercing portion 2322 is used to obtain the cooling shrinkage parameters of the component 3 in the form of penetration, and to provide a pulling force in the opposite direction of the shrinkage to maintain the contraction shape of the component 3.

[0048] In this example, a plurality of piercing portions 2322 are further provided on the sheet body 2321 to further enhance the monitoring accuracy of the deformation monitoring sheet 232 on the cooling and shrinkage of the component 3; the piercing portion 2322 protrudes from the sheet body 2321, and the outer end is a sharp sheet structure, ensuring that it can completely pierce the surface of the waste edge 32 when the component 3 is cooled to form a puncture hole 33, and the puncture hole 33 is in the cutting portion 34, so that the waste edge 32 and the internal good product form a virtual connection state, but still maintain a partial connection relationship, so that with the help of the dual effects of this connection relationship and the location of the piercing portion 2322, a better monitoring effect can be directly obtained to obtain more accurate shrinkage parameters; specifically, when the piercing portion 2322 penetrates the component 3, the sensing portion senses the degree of cooling and shrinkage of the component 3 by measuring the stress change on the piercing portion 2322.

[0049] In addition, the piercing portion 2322 also has an auxiliary shape maintenance effect for the forming of component 3, that is, when component 3 shrinks, the piercing portion 2322 helps to maintain the correct shape of component 3 in the mold through a reaction pulling force in the direction of shrinkage, and prevents it from deforming due to uneven stress during the cooling process; this pulling force ensures the shape stability of component 3 during the cooling process, and avoids structural defects caused by improper shrinkage. Similarly, after the device completes the monitoring of the shrinkage of component 3, the monitoring result is qualified, and the current component 3 is a good part, then the sheet 2321 can continue to extend under the control of the telescopic device 239, and completely cut off the cutting portion 34, and completely cut the waste edge 32 from the good area 31, so as to simplify and quickly complete multiple processes such as shrinkage monitoring, shape maintenance and precise cutting under special shapes.

[0050] In some examples, further, a data interface 5 and a control module connected to the data interface 5 are also provided on the upper mold mechanism 2, and the control module is connected to the signal line 2324 for obtaining the monitoring signals of all resistive stress sensing parts 2323; a shape variable monitoring threshold is set in the control module, and the control module is also connected to a buzzer.

[0051] It is worth mentioning that in this example, the data interface 5, the control module and the buzzer are linked to realize real-time monitoring and early warning of the cooling and shrinkage state of the component 3; the data interface 5 on the upper mold mechanism 2 is connected to the control module, and the control module obtains the monitoring signals from the multiple resistive stress sensing parts 2323 through the signal line 2324, and centrally processes these signals to calculate the deformation of the component 3 in real time; a deformation monitoring threshold is set inside the control module, and when the shrinkage detected by the sensing part exceeds the preset threshold, the control module will respond immediately; at this time, the control module sends an audible alarm through the buzzer to remind the operator that there may be defective products or abnormal cooling shrinkage; by setting the deformation threshold, the automatic abnormality detection function is realized, which can detect problems early in the cooling process and prevent defective products from flowing into subsequent processes; this automated monitoring method not only improves the real-time performance of the production process, but also reduces the subsequent production costs caused by cooling shrinkage problems.

[0052] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or electronic 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, commodity or electronic device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or electronic device including the elements.

[0053] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0054] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A mold capable of monitoring the shrinkage of a material, comprising a lower mold mechanism and an upper mold mechanism capable of clamping on the lower mold mechanism, wherein the upper mold mechanism and the lower mold mechanism are used for the production of parts; characterized in that: Also includes: A cavity wall, arranged in the inner wall of the upper mold mechanism and the lower mold mechanism, for forming the finished product area of ​​the component; The edge blocking protrusion is fixedly arranged in the upper mold mechanism in an enclosed form and is located outside the cavity wall to form the boundary of the waste edge of the component; A monitoring component, which is telescopically arranged in the upper mold mechanism or the lower mold mechanism, and is located between the cavity wall and the edge blocking protrusion, and can be telescopically moved toward the component; The monitoring component is located in the inner cavity of the upper mold mechanism when the component is in the molding state, and does not enter the cavity wall; the monitoring component extends into the inner cavity of the cavity wall when the component is in the cooling state, contacts the edge of the component, and monitors the shrinkage change information of the component in multiple directions, and finds defective products based on the shrinkage change information; The component has at least one bend, forming component regions with at least two different extension directions; The monitoring components include: At least two support frame bars, both of which can be close to or away from the component areas in different extension directions, and are arranged in the inner cavity of the upper mold mechanism; A deformation monitoring piece is fixedly mounted on one side of the support frame bar close to the cavity wall and can be retracted and arranged in the inner wall of the upper mold mechanism; A crossbeam fixedly disposed in the middle of each of the supporting frame bars; A first tilting rod, fixedly connected to one of the cross beams and perpendicular to the corresponding component area; A second tilting rod, fixedly connected to another of the beams and perpendicular to the corresponding component area; A first connecting seat is fixedly mounted on the first tilting rod at an angle perpendicular to the lower mold mechanism; A second connecting seat is fixedly mounted on the second tilting rod at an angle perpendicular to the lower mold mechanism; A moving rod, both ends of which are movably connected to the first connecting seat and the second connecting seat respectively; the moving rod can move vertically in the inner cavity of the upper mold mechanism; A telescopic device is fixed on the upper mold mechanism, and the telescopic end of the telescopic device is connected to the moving rod so that the deformation monitoring piece can move perpendicularly to the corresponding component area and contact the waste edge of the component.

2. The mold capable of monitoring material shrinkage according to claim 1, characterized in that: The upper mold mechanism is also provided with an oil cooling mechanism, which is used to cool the upper mold mechanism and the lower mold mechanism, and the oil cooling mechanism includes: A plurality of liquid cooling columns are arranged in sequence and equidistantly in the inner wall of the cavity wall along the edge direction of the cavity wall; A liquid inlet pipe, one end of which is connected to the inner cavity of the liquid cooling column; A liquid return pipe has one end connected to the inner cavity of the liquid cooling column, and the other end is connected to the heat exchanger device and the circulating pump through the liquid inlet pipe.

3. The mold capable of monitoring material shrinkage according to claim 1, characterized in that: A movement gap is provided between the two support frame bars, and the movement gap corresponds to the position of the bending portion; The deformation monitoring pieces at the two movement gaps are provided with inclined notches.

4. The mold capable of monitoring material shrinkage according to claim 3, characterized in that: The deformation monitoring piece also includes: Sheet, each of the sheet has a sharp edge facing the cavity wall, the sheet contacts or penetrates into the waste edge in the monitoring state, and the deformation monitoring sheet moves through the waste edge after the monitoring is completed; A plurality of resistive stress sensing parts are arranged in the inner wall of the sheet body and are located on a side away from the cavity wall, and can monitor the cooling shrinkage parameters of the component; A signal line is located in the inner cavity of the support frame bar, and the signal line is used to transmit monitoring signals of the plurality of resistive stress sensing parts.

5. The mold capable of monitoring material shrinkage according to claim 4, characterized in that: The sheet body is also provided with a plurality of piercing portions at equal intervals, the piercing portions protrude from the sheet body, and the outer ends of the piercing portions are sharp sheet-like structures; the resistive stress sensing portion is arranged between the piercing portions and the sheet body, and the piercing portions are used to obtain the cooling shrinkage parameters of the component in the form of penetration, and to provide a pulling force in the opposite direction of the shrinkage to maintain the contraction shape of the component.

6. The mold capable of monitoring material shrinkage according to claim 4, characterized in that: The upper mold mechanism is also provided with a data interface and a control module connected to the data interface. The control module is connected to the signal line and is used to obtain monitoring signals of all the resistive stress sensing parts. A deformation variable monitoring threshold is set in the control module, and the control module is also connected to a buzzer.

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