Quick positioning device and positioning method for injection mold frame

Abstract

The invention discloses a quick positioning device and method for an injection mold frame. The quick positioning device for the injection mold frame comprises a mold frame, a lower mold plate and an upper mold plate are arranged on the mold frame, a lower mold block is arranged on the lower mold plate, an upper mold block is arranged on the upper mold plate, and cavities capable of being combined with each other are formed in the upper mold block and the lower mold block; a positioning column and a positioning groove are arranged on one side, corresponding to the lower die block, of the lower die plate, and the positioning column can be inserted into the positioning groove; the positioning table is provided with a sliding block, the locking table is provided with a locking column, the locking column is obliquely arranged, the inclination angle of the locking column is the same as the included angle between the axis of the locking column and the upper die plate, the locking column can be inserted into the locking groove, and the diameter of the locking groove is larger than that of the locking column; the side, close to the sliding block, of the reset block is a reset slope, and the reset slope of the reset block can abut against the side, away from the lower module, of the sliding block. The quick positioning device for the injection mold frame and the positioning method have the effect of reducing errors by using the quick positioning device for the injection mold frame.

Description

Technical Field

[0001] The present invention belongs to the technical field of injection molding auxiliary parts, and more specifically, relates to a rapid positioning device and positioning method for an injection molding mold frame. Background Art

[0002] Injection molding is a method for producing industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding, compression molding and die casting. Injection molding machine, referred to as injection machine or injection molding machine, is the main molding equipment for thermoplastic plastics or thermosetting materials using plastic molding molds to make plastic products of various shapes. Injection molding is achieved through injection molding machines and molds. The mold is a tool used to make molded objects. This tool is composed of various parts. Different molds are composed of different parts. It mainly realizes the processing of the object's shape by changing the physical state of the molded material. When performing mold splitting and closing operations, existing molds often need to use positioning devices to quickly and accurately position the movable mold and fixed mold.

[0003] The inventors found that in the prior art, there are various types of workpieces, and there are cases where the surface of the workpiece is not perpendicular to the ground. The main problem to be solved is that when the surface of the workpiece is an inclined surface, the error between the upper mold and the lower mold of the workpiece will be magnified by the angle, thereby resulting in a low molding rate of the injection molded product.

[0004] The Chinese invention patent with publication number CN106273257A discloses an injection mold for injection molding workpieces, which includes an upper mold, a lower mold, a glue feeding mechanism and a material ejection mechanism. The upper mold includes an upper mold base and an upper mold core arranged on the upper mold base, and the lower mold includes a lower mold base and a lower mold core installed on the lower mold base. The upper mold core and the lower mold core cooperate to form a mold cavity. The characteristics are: the glue feeding mechanism includes a wedge block, a glue feeding slider and an oblique pin. The wedge block is fixed to the upper mold base, the glue feeding slider is slidably mounted on the lower mold core and cooperates with the inclined surface of the wedge block, and the glue feeding slider is fixed to the upper mold base. A glue inlet is provided toward one end of the mold cavity to facilitate the glue inlet slider to inject molten plastic into the mold cavity. The oblique pin can movably penetrate the wedge block and the glue inlet slider. The upper mold base can drive the wedge block and the oblique pin to move away from the lower mold base. The glue inlet slider moves away from the mold cavity under the action of the oblique pin. The ejection mechanism can be movably installed in the lower mold to be used for ejecting the molded workpiece out of the mold cavity. The main problem solved is that the traditional method of using a single hot runner to feed glue into the mold will lead to uneven glue feeding, thereby affecting the appearance quality of the injection molded product.

[0005] The inventors found that compared with the comparative documents, the problems solved are different. The comparative documents solve the problem that a single hot runner for feeding glue into the mold will lead to uneven glue feeding, which is essentially different from the problem that the present invention needs to solve, that is, when the surface of the workpiece is an inclined surface, the error between the upper mold and the lower mold of the workpiece will be magnified by the angle. Summary of the Invention

[0006] An object of the present invention is to use a rapid positioning device for an injection mold base to reduce errors.

[0007] In view of the deficiencies in the prior art, the present invention aims to provide a rapid positioning device and positioning method for an injection mold frame.

[0008] In order to achieve the aforementioned purpose of the invention, the technical solution adopted by the present invention includes a mold frame, a lower template and an upper template are provided on the mold frame, a lower module is provided on the lower template, an upper module is provided on the upper template, and both the upper module and the lower module are provided with cavities that can be combined with each other; a positioning device is provided on one side of the lower template corresponding to the lower module, the positioning device includes a positioning column and a positioning groove, and the positioning column can be inserted into the positioning groove; a sliding block is provided on the positioning platform, and the sliding direction of the sliding block is to move in the direction of approaching the lower module and moving in the direction of moving away from the lower module; a locking column is provided on the locking platform, and the locking column is tilted. The inclination angle is the same as the angle between the axis of the locking column and the upper template, the locking column can be inserted into the locking groove, and the diameter of the locking groove is larger than the diameter of the locking column; the reset block is arranged on the locking platform, and the side of the reset block close to the sliding block is a reset inclined surface, and the reset inclined surface of the reset block can abut against the side of the sliding block away from the lower module; the positioning block is provided with a reset device on the side of the sliding block corresponding to the sliding block, and the reset device includes a reset plate, and a spring is provided between the reset plate and the sliding block; when the spring is stretched, the sliding block tends to slide in the direction close to the lower module, and the spring has a force to pull the sliding block to move in the direction away from the lower module.

[0009] Optionally, a guide rod with a vertical axis is provided on the mold frame; guide holes are opened at positions of the upper template and the lower template corresponding to the guide rod, and the guide holes are coaxially arranged with the guide rod.

[0010] Optionally, the locking post is tilted in a direction away from the upper module.

[0011] Optionally, the reset slope has the same inclination angle as that of the locking post.

[0012] Optionally, calibrators are provided on both sides of the lower module, and the two calibrators are in contact with the upper module. Electromagnet 1 is provided on one side of the lower module, and electromagnet 2 is provided at the position corresponding to electromagnet 1 in the upper module. Electromagnet 1 and electromagnet 2 can cooperate with each other, and electromagnet 1 and electromagnet 2 are connected to a control system.

[0013] Optionally, S201: mold closing process; The driving cylinder is started, and the output shaft of the driving cylinder pushes the upper template to slide downward along the axis of the guide rod; the upper template drives the locking platform and the locking column to move downward synchronously, and the semicircular end of the locking column gradually approaches the sliding block; when the locking column contacts the sliding block, the semicircular end of the locking column and the locking groove of the sliding block, the reset inclined surface and the sliding block abut against each other, and when the reset block moves downward, it guides the sliding block to slide horizontally in the direction close to the lower module; at the same time, the positioning column is inserted into the positioning groove to realize the initial axial positioning of the lower module and the upper module.

[0014] S301: locking process; As the upper mold plate continues to move downward, the locking pin is fully inserted into the locking groove, forming a mechanical locking structure; during this process, the spring is stretched, storing elastic potential energy, and providing continuous preload force for the reset device; the wedge-shaped engagement structure between the locking pin and the sliding block forms a mechanical self-locking effect, ensuring that the locking mechanism maintains a stable locking state during the injection molding process.

[0015] S302: detection and adjustment; The level detector monitors the flatness of the contact surface between the lower module and the upper module in real time. If any tilt or deviation is detected on the contact surface, the level detector feeds the signal back to the control system. The control system automatically adjusts the pressure or speed of the drive cylinder based on the feedback signal to compensate for the deviation and ensure precise contact between the modules.

[0016] S401: mold opening process; After the injection molding is completed, the cylinder is driven to move in the opposite direction, pulling the upper mold plate to slide upward along the axis of the guide rod; the locking pin is pulled out of the locking groove, and the sliding block slides horizontally away from the lower mold plate under the action of the spring, returning to its initial position; after the upper mold plate is completely separated from the lower mold plate, the operator can remove the injection molded part and proceed to the next step.

[0017] Optionally, before step S201, step S101 is additionally performed; S101: Preparation stage; the operator first checks whether all parts of the mold frame are intact, and confirms that the lower mold plate, upper mold plate, drive cylinder, guide rod, etc. are in normal working condition; checks the positioning device, including the positioning table, positioning column, locking table, positioning groove, sliding block, locking column and reset block to ensure that there is no damage or abnormal wear; calibrates the level detector to confirm that its detection accuracy meets the requirements and is in normal working condition.

[0018] Optionally, before step S401, step S402 is additionally performed; S402: Maintenance and care; regularly inspect positioning devices, guide rods and other components, and replace damaged or severely worn components in a timely manner; clean the mold base, lower template, upper template, and residues on the surface of the upper and lower modules to keep the equipment clean and prevent impurities from affecting positioning accuracy; regularly calibrate the level detector to ensure that its detection accuracy meets the requirements and ensure product quality stability.

[0019] Compared with the prior art, the advantages of the present invention include: The present invention provides a rapid positioning device and positioning method for an injection mold frame. To address the problem of angle error amplification caused by the inclined surface of the mold during mold processing, this technical solution achieves error suppression and precise control through the following measures: The inclination of the mold contact surface is monitored in real time using a level detector, and the compensation amount of the drive cylinder is adjusted in real time using an error compensation algorithm, effectively suppressing angular errors. Simultaneously, an adaptive positioning mechanism is designed, including a ball-end conical positioning column and a floating positioning table, which allows for adaptive adjustment to a certain inclination and corrects normal errors on the contact surface. Furthermore, the wedge-shaped locking mechanism is optimized, employing a variable-section locking column and a prestressed spring assembly to create a progressive engagement and provide continuous lateral force compensation. Finally, an intelligent guide system is introduced, ensuring the verticality of the motion trajectory through cross-verification of guide rods and guide columns. These measures work together to effectively overcome the problem of angular error amplification caused by mold tilt, achieve precise positioning and locking, and improve mold processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is an overall schematic diagram of a rapid positioning device for an injection mold frame according to the present invention; Figure 2 This is an overall schematic diagram of a rapid positioning device for an injection mold frame according to the present invention; Figure 3 Schematic cross-sectional view of a rapid positioning device for an injection mold frame according to the present invention; Figure 4 This is a partial schematic diagram of a protruding sliding block of a rapid positioning device for an injection mold frame according to the present invention; Figure 5 A partial schematic diagram of a protruding calibrator for a rapid positioning device for an injection mold frame in the present invention Figure markings: 1. mold frame; 11. lower template; 12. lower module; 13. upper template; 14. upper module; 15. cavity; 21. driving cylinder; 22. guide rod; 23. guide hole; 3. positioning device; 31. positioning platform; 32. positioning column; 33. locking platform; 34. positioning groove; 35. sliding block; 36. locking column; 37. locking groove; 4. reset block; 41. reset slope; 5. reset device; 51. reset plate; 52. spring; 53. level detector; 6. calibrator; 61. electromagnetic block one; 62. electromagnetic block two.

[0022] In the drawings, the same components are denoted by the same reference numerals; the drawings are not drawn to scale. DETAILED DESCRIPTION

[0023] In view of the deficiencies in the prior art, the inventors of this case have proposed the technical solution of the present invention after long-term research and extensive practice. The following will further explain the technical solution, its implementation process and principles, etc. in conjunction with the drawings in the embodiments of this application and specific implementation cases.

[0024] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, the present invention covers any substitution, modification, equivalent method and scheme made within the spirit, principle and scope of the present invention defined by the claims. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] In the description of this application, "first", "second", "third" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "a" or "an" and other similar words do not indicate a quantity limitation, but rather indicate the existence of at least one. "Include" or "comprising" and other similar words mean that the elements or objects appearing before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0026] In the description of the present application, the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, when using two sides, outer side, up and down and other positional terms, it should be understood that they are only used for the convenience of understanding and description, considering that the structure can be facing other positions.

[0027] In the description of the present application, unless otherwise explicitly specified and limited, the technical terms or scientific terms used should be understood as the general meaning understood by those skilled in the art to which the present application belongs, and the terms "mounting", "connection", "connection" and the like should be understood in a broad sense, for example, it can be fixed connection, it can also be detachable connection, it can also be in contact connection or integral connection; For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] The embodiment of the present application aims to introduce and explain the structural composition of the rapid positioning device 3 and the positioning method for the injection mold frame 1 and the matching relationship between each component structure, unless otherwise specified, the size, material and manufacturing process of each component in the rapid positioning device 3 and the positioning method for the injection mold frame 1 in the embodiment of the present application can be selected according to the specific circumstances, which is not particularly limited and described here.

[0029] Further, in order for the public to have a better understanding of the present application, in the following detailed description of the present application, some specific details are described in detail. The present application can also be completely understood without the description of these details by those skilled in the art.

[0030] Example 1 Please refer to Figure 1-5 As shown in the drawings, a rapid positioning device and positioning method for injection mold frame, comprising a mold frame 1; The mold frame 1 is provided with a lower mold plate 11, and the lower mold plate 11 is horizontally arranged; The upper surface of the lower mold plate 11 is fixedly provided with a lower module 12; The upper surface of the lower mold plate 11 is fixedly provided with an upper mold plate 13, and the upper mold plate 13 is fixedly provided with an upper mold plate 13; The side of the lower module 12 and the upper module 14 close to each other is provided with a cavity 15, and the two cavities 15 can be combined with each other.

[0031] Please refer to Figure 1-5As shown, a driving cylinder 21 is provided on the mold frame 1 at a position corresponding to the upper mold plate 13, the axis of the driving cylinder 21 is vertically arranged, and the output shaft of the driving cylinder 21 is fixedly connected to the upper mold plate 13; a guide rod 22 with a vertical axis is fixedly connected to the mold frame 1; guide holes 23 are opened at positions of the upper mold plate 13 and the lower mold plate 11 corresponding to the guide rod 22, and the guide hole 23 is coaxially arranged with the guide rod 22.

[0032] When in use, the driving cylinder 21 can push the upper template 13 to slide along the guide rod 22, pushing the upper template 13 to slide toward the lower template 11 until the upper template 13 and the lower template 11 abut against each other, and the cavity 15 between the upper template 13 and the lower template 11 is combined with each other.

[0033] See also Figure 1-5 As shown, the lower template 11 is provided with positioning devices 3 on both sides corresponding to the lower module 12, and the positioning device 3 includes a positioning platform 31, a positioning column 32, a locking platform 33 and a positioning groove 34; the positioning platform 31 is arranged outside the lower module 12, and the positioning platform 31 is an annular rectangular structure, and the positioning platform 31 is fixedly connected to the lower template 11; the positioning platform 31 is provided with positioning columns 32 on both sides corresponding to the lower template 11, the axis of the positioning column 32 is vertically arranged, and the upper end of the positioning column 32 is semicircular; the locking platform 33 is provided outside the upper module 14, and the locking platform 33 is an annular rectangular structure, and the locking platform 33 is fixedly connected to the upper template 13; the locking platform 33 is provided with a positioning groove 34 at the position corresponding to the positioning column 32, and the positioning groove 34 is coaxially arranged with the positioning column 32, and the positioning column 32 can be inserted into the positioning platform 31.

[0034] See also Figure 1-5 As shown, a sliding block 35 is provided on the positioning platform 31, and the sliding block 35 is slidably connected to the positioning platform 31. The sliding direction of the sliding block 35 is to move toward the lower module 12 and toward the lower module 12; a locking column 36 is fixedly connected to the locking platform 33, and the locking column 36 is tilted. The starting point of the locking column 36 is fixedly connected to the locking platform 33, and the locking column 36 is tilted in the direction away from the upper module 14. The inclination angle of the locking column 36 is the same as the angle between the axis of the locking column 36 and the upper template 13. The end of the locking column 36 away from the upper module 14 is semicircular, and the locking column 36 can be inserted into the locking groove 37. The locking column 36 is away from the projection of the upper module 14 from top to bottom and is arranged in the locking groove 37.

[0035] See also Figure 1-5 As shown, the reset block 4 is fixedly arranged on the locking platform 33, and the side of the reset block 4 close to the sliding block 35 is a reset slope 41. The reset slope 41 has the same inclination angle as the locking column 36. The reset slope 41 of the reset block 4 can abut against the side of the sliding block 35 away from the lower module 12.

[0036] See also Figure 1-5As shown, a reset device 5 is provided on one side of the positioning block corresponding to the sliding block 35, and the reset device 5 includes a reset plate 51, the reset plate 51 is vertically arranged, and a spring 52 is provided between the reset plate 51 and the sliding block 35, and the axis of the spring 52 is horizontally arranged; one end of the spring 52 is fixedly connected to the sliding block 35, and the other end of the spring 52 is fixedly connected to the reset plate 51; when not in operation, the spring 52 is not subjected to an action force, and the spring 52 does not deform; when working, the spring 52 is stretched, and the sliding block 35 tends to slide in the direction close to the lower module 12, and the spring 52 has a force to pull the sliding block 35 to move in the direction away from the lower module 12.

[0037] See also Figure 1-5 As shown, a level detector 53 is provided outside the lower module 12 . The detection direction of the level detector 53 is between the lower module 12 and the upper module 14 , and is used to detect the contact point between the lower module 12 and the upper module 14 .

[0038] During use, the axial insertion and engagement of the positioning post 32 with the positioning slot 34 achieves preliminary positioning of the upper and lower modules 14, 12. The semicircular end of the positioning post 32 forms linear contact with the inner wall of the positioning slot 34, automatically correcting minor deviations during mold closing. Simultaneously, the inclined locking structure of the locking post 36 and the sliding block 35 further ensures positioning accuracy. The tilt angle of the locking post 36 matches the angle of the reset bevel 41 of the sliding block 35, allowing the two to fit tightly together when in contact, providing dual positioning assurance. This design ensures that the cavities 15 of the upper and lower modules 14, 12 are precisely aligned after mold closing, avoiding defects in the molded parts caused by inaccurate positioning.

[0039] See also Figure 1-5 As shown, calibrators 6 are provided on both sides of the lower module 12 in mirror images, and the two calibrators 6 are in contact with the upper module 14. An electromagnet 1 61 is provided on one side of the lower module 12, and an electromagnet 2 62 is provided at a position corresponding to the electromagnet 1 61 on the upper module 14. The electromagnet 1 61 and the electromagnet 2 62 can cooperate with each other. The electromagnet 1 61 and the electromagnet 2 62 are connected to a control system, and the size of the magnetic force is adjusted proportionally by the injection pressure.

[0040] During use, due to the temperature change during injection molding, there is a thermal expansion error in the lower module 12 and the upper module 14. When manufacturing a workpiece with an inclined plane, the temperature of the mold is detected by a temperature sensor, and the compensation amount of the lower module 12 and the upper module 14 is adjusted by the calibrator 6 set on both sides of the lower module 12. At the same time, the electromagnet 1 61 and the electromagnet 2 62 adjust the magnetic force according to the injection pressure detected by the control system, so that the lower module 12 and the upper module 14 are relatively stable during injection molding.

[0041] Optimized mold closing efficiency: The driving cylinder 21 pushes the upper mold plate 13 in a linear sliding motion along the guide rod 22, achieving fast and stable mold closing. The precise fit between the guide rod 22 and the guide hole 23 ensures smooth sliding of the upper mold plate 13. Furthermore, the automatic engagement of the locking pin 36 with the sliding block 35 allows the locking pin 36 to automatically engage the locking groove 37 of the sliding block 35 during the mold closing process, forming a mechanical lock. This design combines the positioning and locking steps into a single, combined action, significantly shortening the mold closing cycle and improving production efficiency.

[0042] Enhanced locking reliability: Spring 52 provides a continuous preload for the locking mechanism. During the mold closing process, spring 52 is stretched, storing elastic potential energy. When injection pressure acts on the module, the preload of spring 52 partially offsets this pressure, maintaining the stability of the locking mechanism. Furthermore, the wedge-shaped engagement between the locking post 36 and the sliding block 35 creates a mechanical self-locking effect, further enhancing locking reliability. This ensures that the locking mechanism maintains a stable locking state during the injection molding process, preventing module separation or molded part defects caused by insecure locking.

[0043] Compared with the comparative documents of the background technology: the comparative documents use one-way sliding positioning, while the present invention realizes two-way sliding through springs, and this mechanism can automatically compensate for mold closing deviation; the locking column of the comparative documents is vertically inserted or simply wedge-shaped, while the inclination angle of the locking column of the present invention is consistent with the angle of the upper template, and the diameter of the locking groove is larger than the column diameter, forming a "continuous overlap of horizontal projections" mechanical self-locking, which can effectively prevent template separation caused by injection pressure; self-locking without additional power source is achieved through geometric parameter matching, thereby improving locking reliability.

[0044] See also Figure 1-5 As shown, a positioning method for an injection mold frame 1 using a rapid positioning device 3: S101: Preparation stage; The operator first checks whether the various components of the mold frame 1 are intact, and confirms that the lower template 11, upper template 13, drive cylinder 21, guide rod 22, etc. are in normal working condition; checks the positioning device 3, including the positioning platform 31, positioning column 32, locking platform 33, positioning groove 34, sliding block 35, locking column 36 and reset block 4, to ensure that there is no damage or abnormal wear; calibrates the level detector 53 to confirm that its detection accuracy meets the requirements and is in normal working condition.

[0045] S201: mold closing process; The driving cylinder 21 is started, and the output shaft of the driving cylinder 21 pushes the upper template 13 to slide downward along the axis of the guide rod 22; the upper template 13 drives the locking platform 33 and the locking column 36 to move downward synchronously, and the semicircular end of the locking column 36 gradually approaches the sliding block 35; when the locking column 36 contacts the sliding block 35, the semicircular end of the locking column 36 and the locking groove 37 of the sliding block 35, the reset inclined surface 41 and the sliding block 35 abut each other, and when the reset block 4 moves downward, it guides the sliding block 35 to slide horizontally in the direction close to the lower module 12; at the same time, the positioning column 32 is inserted into the positioning groove 34 to realize the preliminary axial positioning of the lower module 12 and the upper module 14.

[0046] S301: locking process; As the upper template 13 continues to move downward, the locking column 36 is fully inserted into the locking groove 37 to form a mechanical locking structure; during this process, the spring 52 is stretched, storing elastic potential energy, and providing continuous pre-tightening force for the reset device 5; the wedge-shaped interlocking structure of the locking column 36 and the sliding block 35 forms a mechanical self-locking effect, ensuring that the locking mechanism maintains a stable locking state during the injection molding process.

[0047] S302: detection and adjustment; The level detector 53 monitors the flatness of the contact surface between the lower module 12 and the upper module 14 in real time; if a tilt or deviation is detected on the contact surface, the level detector 53 feeds back the signal to the control system; the control system automatically adjusts the pressure or speed of the drive cylinder 21 according to the feedback signal to compensate for the deviation and ensure precise contact between the modules.

[0048] S401: mold opening process; After the injection molding is completed, the cylinder 21 is driven to move in the reverse direction, pulling the upper mold plate 13 to slide upward along the axis of the guide rod 22; the locking column 36 is pulled out of the locking groove 37, and the sliding block 35 slides horizontally away from the lower mold plate 12 under the action of the spring 52, returning to its initial position; after the upper mold plate 13 is completely separated from the lower mold plate 11, the operator can remove the injection molded part and proceed to the next step.

[0049] S402: Maintenance and care; Regularly inspect the positioning device 3, guide rod 22 and other components, and replace damaged or severely worn components in a timely manner; clean the residues on the surface of the mold frame 1, lower template 11, upper template 13, upper module 14 and lower module 12 to keep the equipment clean and prevent impurities from affecting the positioning accuracy; regularly calibrate the level detector 53 to ensure that its detection accuracy meets the requirements and ensure the stability of product quality.

[0050] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make some simple deductions or substitutions without departing from the concept of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A rapid positioning device for an injection mold frame, characterized in that: The mold frame (1) comprises a lower mold plate (11) and an upper mold plate (13), the lower mold plate (11) is provided with a lower module (12), the upper mold plate (13) is provided with an upper module (14), and the upper module (14) and the lower module (12) are both provided with a cavity (15) capable of being combined with each other; A positioning device (3) is provided on one side of the lower template (11) corresponding to the lower module (12), and the positioning device (3) includes a positioning column (32) and a positioning groove (34), and the positioning column (32) can be inserted into the positioning groove (34); A sliding block (35) is provided on the positioning platform (31), and the sliding direction of the sliding block (35) is to move toward the lower module (12) and to move away from the lower module (12); A locking column (36) is provided on the locking platform (33), and the locking column (36) is tilted. The tilt angle of the locking column (36) is the same as the angle between the axis of the locking column (36) and the upper template (13). The locking column (36) can be inserted into the locking groove (37). The diameter of the locking groove (37) is larger than the diameter of the locking column (36). The horizontal projection of the locking column (36) can be continuously set in the locking groove (37). The reset block (4) is arranged on the locking platform (33), and the side of the reset block (4) close to the sliding block (35) is a reset inclined surface (41), and the reset inclined surface (41) of the reset block (4) can abut against the side of the sliding block (35) away from the lower module (12); A reset device (5) is provided on one side of the positioning block corresponding to the sliding block (35), and the reset device (5) includes a reset plate (51). A spring (52) is provided between the reset plate (51) and the sliding block (35); when the spring (52) is stretched, the sliding block (35) slides in a direction close to the lower module (12), and the spring (52) has a force that pulls the sliding block (35) to move in a direction away from the lower module (12).

2. A rapid positioning device for an injection mold frame according to claim 1, characterized in that: A guide rod (22) with a vertical axis is provided on the mold frame (1); guide holes (23) are provided at positions corresponding to the guide rod (22) on the upper mold plate (13) and the lower mold plate (11), and the guide holes (23) are coaxially arranged with the guide rod (22).

3. A rapid positioning device for an injection mold frame according to claim 1, characterized in that: The locking post (36) is tilted in a direction away from the upper module (14).

4. A rapid positioning device for an injection mold frame according to claim 1, characterized in that: The reset inclined surface (41) and the locking post (36) have the same inclination angle.

5. The rapid positioning device for an injection mold frame according to claim 1, characterized in that: Calibrators (6) are provided on both sides of the lower module (12), and the two calibrators (6) are in contact with the upper module (14). One side of the lower module (12) is provided with an electromagnet 1 (61), and the upper module (14) is provided with an electromagnet 2 (62) at a position corresponding to the electromagnet 1 (61). The electromagnet 1 (61) and the electromagnet 2 (62) can cooperate with each other, and the electromagnet 1 (61) and the electromagnet 2 (62) are connected to a control system.

6. A positioning method for a rapid positioning device for an injection mold frame, based on the rapid positioning device (3) for an injection mold frame (1) according to any one of claims 1 to 5, characterized in that: The steps include: S201: mold closing process; The driving cylinder (21) is started, and the output shaft of the driving cylinder (21) pushes the upper template (13) to slide downward along the axis direction of the guide rod (22); the upper template (13) drives the locking platform (33) and the locking column (36) to move downward synchronously, and the semicircular end of the locking column (36) gradually approaches the sliding block (35); when the locking column (36) contacts the sliding block (35), the semicircular end of the locking column (36) and the locking groove (37) of the sliding block (35) abut against each other, and when the reset block (4) moves downward, the sliding block (35) is guided to slide horizontally in the direction close to the lower module (12); at the same time, the positioning column (32) is inserted into the positioning groove (34) to achieve preliminary axial positioning of the lower module (12) and the upper module (14); S301: locking process; As the upper mold plate (13) continues to move downward, the locking column (36) is completely inserted into the locking groove (37), forming a mechanical locking structure; during this process, the spring (52) is stretched, storing elastic potential energy, and providing a continuous pre-tightening force for the reset device (5); the wedge-shaped interlocking structure of the locking column (36) and the sliding block (35) forms a mechanical self-locking effect, ensuring that the locking mechanism maintains a stable locking state during the injection molding process; S302: detection and adjustment; The level detector (53) monitors the flatness of the contact surface between the lower module (12) and the upper module (14) in real time; if the contact surface is detected to be tilted or deviated, the level detector (53) feeds back a signal to the control system; the control system automatically adjusts the pressure or speed of the driving cylinder (21) according to the feedback signal to compensate for the deviation and ensure accurate contact between the modules; S401: mold opening process; After the injection molding is completed, the cylinder (21) is driven to move in the reverse direction, pulling the upper mold plate (13) to slide upward along the axis of the guide rod (22); the locking column (36) is pulled out of the locking groove (37), and the sliding block (35) slides horizontally in the direction away from the lower mold plate (12) under the action of the spring (52) to restore the initial position; after the upper mold plate (13) and the lower mold plate (11) are completely separated, the operator can take out the injection molded part and proceed to the next step.

7. A positioning method for a rapid positioning device for an injection mold frame according to claim 6, characterized in that: Before step S201, step S101 is performed additionally; S101: Preparation stage; the operator first checks whether the various components of the mold frame (1) are intact, and confirms that the lower mold plate (11), the upper mold plate (13), the driving cylinder (21), the guide rod (22), etc. are in normal working condition; checks the positioning device (3), including the positioning platform (31), the positioning column (32), the locking platform (33), the positioning groove (34), the sliding block (35), the locking column (36) and the reset block (4), to ensure that there is no damage or abnormal wear; calibrates the level detector (53) to confirm that its detection accuracy meets the requirements and is in normal working condition.

8. A positioning method for a rapid positioning device for an injection mold frame according to claim 7, characterized in that: Before step S401, step S402 is performed additionally; S402: Maintenance and care; Regularly inspect the positioning device (3), guide rod (22) and other components, and replace damaged or severely worn components in a timely manner; clean the mold frame (1), lower template (11), upper template (13) and the surface of the upper module (14) and lower module (12) to keep the equipment clean and prevent impurities from affecting the positioning accuracy; regularly calibrate the level detector (53) to ensure that its detection accuracy meets the requirements and ensure the stability of product quality.

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