Low-pressure casting intelligent control quick mold changing device

Abstract

The application discloses a low-pressure casting intelligent control quick mold changing device, which comprises a trolley body, a mold loading platform, a connecting piece mechanism and a correction mechanism.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of die changing tools, and discloses a low-pressure casting intelligent control rapid die changing device. BACKGROUND

[0002] In modern injection molding or die casting production, the key to improving production efficiency lies in shortening non-production time. Among them, die changing is one of the main stoppage links. The traditional die changing operation usually relies on the crane to lift the mold, and the pull rod, positioning ring and other structures on the equipment are guided and aligned by manual operation. The operation is complicated, time-consuming and has safety hazards, and it is difficult to meet the requirements of rapid die changing. At the same time, in the production process, detecting the quality of the molded product is an important means to ensure production stability and product consistency. The traditional method is to take the product out by hand after demolding and send it to an independent detection table for weighing or inspection. This method is low in efficiency and increases the labor intensity.

[0003] In order to solve the above problems, an automatic mode needs to be adopted. In the prior art, a mold loading trolley is used to realize mold transfer, but its function is usually single, and it is only used as a mobile carrier for the mold between the equipment and the storage area. When changing the mold, the relative position of the trolley and the movable mold plate of the equipment still needs to be adjusted repeatedly, and the precision and efficiency are not high. In addition, such trolleys generally lack the function of product weight detection integrated in the production rhythm, and the production and detection links are separated from each other. Therefore, improvement is needed to make the trolley have the functions of die changing and product weight detection, and to correct the position of the product falling into the mold loading trolley, so as to facilitate subsequent automatic loading and transportation. SUMMARY

[0004] The application aims to provide a low-pressure casting intelligent control rapid die changing device.

[0005] To achieve the above object, the technical scheme adopted by the present application is as follows: a low-pressure casting intelligent control rapid mold changing device, comprising: a trolley body, the trolley body is suitable for moving in a horizontal direction from an initial position to a rack, the rack is provided with a first stop position and a second stop position; a mold loading platform, the mold loading platform is fixedly arranged on the upper surface of the trolley body, the mold loading platform is used for carrying a mold, when mold changing is needed, after the trolley body moves to the second stop position, the movable mold plate on the rack is lowered to be attached to the upper surface of the mold, the mold is clamped by the mold clamp arranged on the movable mold plate, and the mold changing operation is completed; a receiving mechanism, the receiving mechanism is arranged on the side of the trolley body close to the rack, a weight detection device is arranged in the receiving mechanism, during production, when the trolley body moves to the first stop position in the direction of the rack, a product falls into the receiving mechanism, and the weight detection device is suitable for detecting the weight of the product; a correction mechanism, the correction mechanism is arranged in the receiving mechanism, after the product falls into the receiving mechanism, the correction mechanism operates to correct the product to a centered position, and after the trolley body returns to the initial position, the correction mechanism resets.

[0006] As a preferred, the receiving mechanism comprises a fixed plate, a receiving tray and a buffer device, the fixed plate is fixedly arranged on the side of the trolley body close to the rack, the receiving tray is arranged above the fixed plate, the receiving tray and the fixed plate are connected through the buffer device, and the buffer device is suitable for providing elastic support and absorbing the impact generated when the product falls.

[0007] Further preferably, the buffer device comprises a first fixing seat, a buffer spring, a spring support and a first adjusting screw, the first fixing seat is fixedly arranged on the lower surface of the receiving tray, the spring support is fixedly arranged on the upper surface of the fixed plate, the first adjusting screw is connected with the first fixing seat after penetrating through the spring support, and the buffer spring is sleeved on the first adjusting screw and located between the first fixing seat and the spring support; after the trolley body moves to the first stop position, the receiving tray is below the movable mold plate, the product is ejected from the movable mold plate and falls into the receiving tray, the receiving tray generates vertical displacement and compresses the buffer spring under the impact of the falling product, the buffer spring absorbs the impact by generating deformation, and buffering is achieved.

[0008] Further preferably, the weight detection device is arranged between the adapter tray and the fixed plate, and comprises a second fixing seat, a second adjusting screw and a gravity sensing sensor. The second fixing seat is fixedly arranged at the center of the lower surface of the adapter tray. The second adjusting screw is threadedly arranged at the lower side of the second fixing seat. The gravity sensing sensor is fixedly arranged on the upper surface of the fixed plate and located directly below the second adjusting screw. When the product falls into the adapter tray, the adapter tray is lowered by the gravity of the product, and the second adjusting screw is synchronously lowered. The gravity sensing sensor outputs corresponding weight data by detecting the displacement of the second adjusting screw.

[0009] As a preferred embodiment, a plurality of positioning grooves are arranged on the mold mounting platform, and positioning keys are arranged in the positioning grooves.

[0010] As a preferred embodiment, the rack bottom is provided with a track, the trolley body moves along the track, and a first travel switch, a second travel switch and a third travel switch are sequentially arranged on the track. The first travel switch marks the initial position of the trolley body. The second travel switch marks a deceleration position in the moving path of the trolley body towards the rack during mold changing, and also serves as the first stop position of the trolley body during production. The third travel switch marks the second stop position of the trolley body. During production, the trolley body stops when it reaches the second travel switch, and the adapter mechanism is located directly below the movable die plate. When mold changing is needed, the mold is hoisted to the mold mounting platform when the trolley body is at the first travel switch, and the trolley body decelerates and continues to move when it passes the second travel switch, and stops when it reaches the third travel switch, and the mold mounting platform is located directly below the movable die plate.

[0011] Further preferably, the track is further provided with a first limiter and a second limiter at both ends. The first limiter limits the trolley body from continuing to move when the trolley body returns to the first travel switch. The second limiter limits the trolley body from continuing to move when the trolley body moves to the third travel switch.

[0012] As a preferred, the correction mechanism comprises a driving assembly, a synchronous moving assembly, a guide plate and a plurality of push plates, the guide plate is arranged in the connector tray and parallel to the bottom of the connector tray, a plurality of guide grooves are arranged on the guide plate in the centripetal direction, the driving assembly and the synchronous moving assembly are both fixedly arranged on the bottom of the connector tray and below the guide plate, the upper end of the synchronous moving assembly is connected with the push plate after passing through the guide groove, and the driving assembly is suitable for controlling the synchronous moving assembly to operate, so as to control the plurality of push plates to move in the centripetal direction or the centrifugal direction synchronously.

[0013] Further preferably, the synchronous moving assembly comprises a plurality of moving units and a plurality of first connecting rods, the plurality of moving units are circumferentially and uniformly arranged around the center of the connector tray, the moving unit comprises a first moving part, a second moving part and a second connecting rod, the adjacent first moving parts are connected through the first connecting rod, and the second moving part is connected with the first moving part through the second connecting rod, the first moving part is arranged on the bottom of the connector tray, the second moving part is slidably connected on the guide groove, and the driving assembly is connected on one of the first moving parts, when the driving assembly drives the first moving part to move, the remaining first moving parts are driven to move synchronously through the first connecting rod, and the second moving part is simultaneously driven to move along the guide groove synchronously through the second connecting rod.

[0014] Further preferably, the first moving part comprises an arc-shaped sliding rail and a first sliding block, the arc-shaped sliding rails of the plurality of first moving parts are concentrically arranged, and the first sliding block is slidably arranged on the arc-shaped sliding rail, the upper surface of the first sliding block is provided with two first connecting shafts, the two first connecting shafts are suitable for assembling one first connecting rod respectively, so as to realize the linkage connection with the adjacent first sliding block, the driving assembly comprises an electric push rod and a third connecting rod, the electric push rod is hinged with the third connecting rod, the third connecting rod is hinged with one of the first sliding blocks, and the linear reciprocating motion of the electric push rod drives the first sliding block to slide along the arc-shaped sliding rail through the third connecting rod, without causing motion interference.

[0015] Further preferably, the second moving part comprises a second sliding block and a second connecting shaft, the second connecting shaft is fixedly arranged on the lower surface of the second sliding block, a third connecting shaft is arranged on the first sliding block, the two ends of the second connecting rod are connected with the second connecting shaft and the third connecting shaft respectively, and the second sliding block is provided with a lug on the side surface, so that the second sliding block is clamped on the guide groove and slides on the guide groove through the pushing of the second connecting rod.

[0016] Compared with the prior art, the application has the following beneficial effects:

[0017] (1) Realize quick and accurate automation die changing: the second stop position is arranged in the rack, the trolley body can automatically run to the position and cooperate with the die clamp to realize automatic die changing, the whole process does not need manual calibration, the problem of repeatedly adjusting the position by manual in the traditional die changing process is avoided, the downtime required for die changing is greatly shortened, and the production efficiency is significantly improved.

[0018] (2) Realize instant weight detection: the connecting piece mechanism is arranged on the trolley body, and the weight detection device is integrated in the connecting piece mechanism, so that the weight detection can be automatically completed immediately after the product is demolded, the real-time monitoring of the product weight is realized, and the unqualified product is screened out in the first time, the time of manual detection is reduced, and the production efficiency is improved.

[0019] (3) Automatically correct the position of the product, facilitate subsequent automatic production: the correcting mechanism is arranged on the connecting piece mechanism, the product falling into the connecting piece tray can be quickly corrected to the central position by the mechanism, the problem of subsequent picking caused by inconsistent falling points of the product is solved, the subsequent mechanical hand or other automatic equipment can quickly and directly grab and carry the product without setting a visual positioning device, and therefore the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the assembly state stereoscopic structure schematic diagram of the application.

[0021] Figure 2 is the assembly state stereoscopic structure schematic diagram of the application.

[0022] Figure 3 is the stereoscopic structure explosion diagram of the application.

[0023] Figure 4 is the connecting piece mechanism schematic diagram of the application.

[0024] Figure 5 is the first stop position and the second stop position schematic diagram of the application.

[0025] Figure 6 is the die clamp schematic diagram of the application.

[0026] Figure 7 is the moving die plate and the die clamp schematic diagram of the application.

[0027] Figure 8 is the correcting mechanism assembly state stereoscopic structure schematic diagram of the application.

[0028] Figure 9 is the correcting mechanism internal schematic diagram of the application.

[0029] Figure 10 is the correcting mechanism internal schematic diagram of the application.

[0030] In the figure: 1, trolley body; 2, die mounting platform; 21, positioning groove; 3, connecting piece mechanism; 31, fixed plate; 32, connecting piece tray; 33, buffer device; 331, first fixed seat; 332, buffer spring; 333, spring support; 334, first adjusting screw; 4, correction mechanism; 41, driving assembly; 411, electric push rod; 412, third connecting rod; 42, synchronous movement assembly; 421, movement unit; 4211, first movement part; 42111, arc-shaped slide rail; 42112, first sliding block; 42113, first connecting shaft; 42114, third connecting shaft; 4212, second movement part; 42121, second sliding block; 42122, protruding block; 4213, second connecting rod; 422, first connecting rod; 43, guide plate; 431, guide groove; 44, push plate; 5, weight detection device; 51, second fixed seat; 52, second adjusting screw; 53, gravity induction sensor; 6, rack; 61, movable die plate; 62, die clamp; 63, track; 64, first travel switch; 65, second travel switch; 66, third travel switch; 67, first limiter; 68, second limiter. DETAILED DESCRIPTION

[0031] Hereinafter, the present application will be further described in conjunction with specific embodiments, and it should be noted that the following described embodiments between or between technical features can be combined to form new embodiments without conflict.

[0032] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The orientation and positional relationship shown in the drawing is based on the orientation or positional relationship shown in the drawing, and is only for the convenience of describing the present application and simplifying the description, and does 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 cannot be understood as limiting the specific protection scope of the present application.

[0033] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily have to describe a particular order or sequence.

[0034] The terms "comprise" and "comprising", and any variations thereof, as used in the specification and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of steps or elements does not necessarily comprise only those steps or elements but can include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] As shown in one preferred embodiment of the present application, Figures 1 to 10 A low-pressure casting intelligent control rapid mold changing device includes a trolley body 1, the trolley body 1 is adapted to move in a horizontal direction from an initial position to a rack 6, the rack 6 is provided with a first stop position and a second stop position; a mold loading platform 2 is fixedly arranged on the upper surface of the trolley body 1, the mold loading platform 2 is used for carrying a mold, when mold changing is needed, after the trolley body 1 moves to the second stop position, a movable mold plate 61 on the rack 6 is lowered to be attached to the upper surface of the mold, the mold is clamped by a mold clamp 62 arranged on the movable mold plate 61, and the mold changing operation is completed, without manual calibration throughout the process, avoiding the problem of manual repeated adjustment of alignment in the traditional mold changing process, greatly shortening the downtime required for mold changing, and significantly improving the production efficiency; a receiving mechanism 3 is arranged on one side of the trolley body 1 close to the rack 6, the receiving mechanism 3 is provided with a weight detection device 5, during production, after the trolley body 1 moves to the first stop position in the direction of the rack 6, a product falls into the receiving mechanism 3, and the weight detection device 5 is adapted to detect the weight of the product, the weight detection device 5 is integrated in the receiving mechanism 3, and the weight detection can be automatically completed immediately after the product is demolded, realizing real-time monitoring of the weight of the product, so that unqualified products can be screened out in the first time, reducing the time of manual detection, and improving the production efficiency; a correction mechanism 4 is arranged in the receiving mechanism 3, after the product falls into the receiving mechanism 3, the correction mechanism 4 operates to correct the product to a centered position, solving the problem of subsequent picking caused by inconsistent landing points of the product, realizing that a subsequent mechanical hand or other automatic equipment can quickly and directly grab and carry the product without the need to set a visual positioning device, thereby improving the production efficiency, and the correction mechanism 4 resets after the trolley body 1 returns to the initial position.

[0036] In this embodiment, the receiving mechanism 3 includes a fixed plate 31, a receiving tray 32, and a buffer device 33, the fixed plate 31 is fixedly arranged on one side of the trolley body 1 close to the rack 6, the receiving tray 32 is arranged above the fixed plate 31, the receiving tray 32 and the fixed plate 31 are connected through the buffer device 33, and the buffer device 33 is adapted to provide elastic support and absorb the impact generated when the product falls.

[0037] The connecting mechanism 3 of the application is a conventional connecting tray 32, which is provided with a buffering device 33, so that the connecting tray 32 can be floated up and down, the flexible connection of the product is realized, the impact of the product falling on the connecting tray 32 can be effectively reduced, the damage of the product and the connecting tray 32 is avoided, and the production quality and the equipment life are improved.

[0038] In order to realize the buffering of the product, in the embodiment, specifically, the buffering device 33 includes a first fixing seat 331, a buffering spring 332, a spring support 333 and a first adjusting screw 334, the first fixing seat 331 is fixedly arranged on the lower surface of the connecting tray 32, the spring support 333 is fixedly arranged on the upper surface of the fixed plate 31, the first adjusting screw 334 is connected with the first fixing seat 331 after penetrating through the spring support 333, and the buffering spring 332 is sleeved on the first adjusting screw 334 and located between the first fixing seat 331 and the spring support 333; after the trolley body 1 moves to the first stop position, the connecting tray 32 is below the movable mold plate 61, the product is ejected from the movable mold plate 61 and falls into the connecting tray 32, the connecting tray 32 is vertically displaced and the buffering spring 332 is compressed under the impact of the product falling, the buffering spring 332 absorbs the impact by deformation, and buffering is realized.

[0039] Among them, the buffering capacity of the connecting mechanism 3 can be adjusted according to different products, the distance between the fixed plate 31 and the connecting tray 32 can be adjusted through the first adjusting screw 334, and the compression amount of the buffering spring 332 is also adjusted synchronously, so that different products can match different buffering distances, and effective buffering of products of different specifications is realized.

[0040] In order to realize demolding and weighing, the embodiment integrates a weight detection device 5, the weight detection device 5 is arranged between the connecting tray 32 and the fixed plate 31, the weight detection device 5 includes a second fixing seat 51, a second adjusting screw 52 and a gravity sensing sensor 53, the second fixing seat 51 is fixedly arranged at the central position of the lower surface of the connecting tray 32, the second adjusting screw 52 is installed on the lower side of the second fixing seat 51 through thread cooperation, and the gravity sensing sensor 53 is fixedly arranged on the upper surface of the fixed plate 31 and located directly below the second adjusting screw 52; after the product falls into the connecting tray 32, the connecting tray 32 is lowered under the gravity of the product, the second adjusting screw 52 is synchronously lowered, and the gravity sensing sensor 53 outputs corresponding weight data by detecting the displacement of the second adjusting screw 52.

[0041] Of course, when different products are produced, the displacement amount of the second adjusting screw 52 will change due to the different weights of the products, so the gap between the lower end of the second adjusting screw 52 and the gravity sensing sensor 53 can be adjusted to adapt to the quality detection of different products.

[0042] In the embodiment, the positioning slots 21 are arranged on the mold loading platform 2, and the positioning keys are arranged in the positioning slots 21, and the mold is positioned and fixed at the center of the mold loading platform 2 by the positioning keys.

[0043] In the embodiment, the track 63 is arranged at the bottom of the rack 6, the trolley body 1 moves along the track 63, the first travel switch 64, the second travel switch 65 and the third travel switch 66 are sequentially arranged on the track 63, the initial position of the trolley body 1 is marked by the first travel switch 64, the deceleration position in the moving path of the trolley body 1 to the rack 6 direction in the mold changing process is marked by the second travel switch 65, and the second travel switch 65 also serves as the first stop position of the trolley body 1 in the production process, and the second stop position of the trolley body 1 is marked by the third travel switch 66; in the production process, the trolley body 1 stops when moving to the second travel switch 65, and at this time, the connecting piece mechanism 3 is located directly below the movable die plate 61; when the mold needs to be changed, the mold is hoisted to the mold loading platform 2 when the trolley body 1 is at the first travel switch 64, the trolley body 1 decelerates and continues to move when passing the second travel switch 65, and stops when moving to the third travel switch 66, at this time, the mold loading platform 2 is located directly below the movable die plate 61, and the first limiter 67 and the second limiter 68 are further arranged at both ends of the track 63, the first limiter 67 limits the trolley body 1 from continuing to move when the trolley body 1 returns to the first travel switch 64, and the second limiter 68 limits the trolley body 1 from continuing to move when the trolley body 1 moves to the third travel switch 66.

[0044] More specifically, in the mold changing process, the first limiter 67 limits the trolley body 1 from moving at the initial position of the trolley body 1, the first travel switch 64 monitors the position of the trolley body 1, then the mold is hoisted on the trolley body 1, the mold is positioned and fixed at the center of the mold loading platform 2 by the positioning keys, the trolley body 1 moves to the rack 6 direction at a first speed after the mold is fixed, the trolley body 1 collides with the second travel switch 65, the second travel switch 65 feeds back the position of the trolley body 1, and the trolley body 1 continues to move to the right at a second speed by the PLC control at this time, the second speed is less than the first speed, so that the trolley body 1 can be accurately stopped at the second stop position and the impact on the second limiter 68 can be avoided because the speed is too fast, the third travel switch 66 feeds back the signal to the PLC when the trolley body 1 collides with the third travel switch 66, at this time, the trolley body 1 reaches the second stop position, the trolley body 1 stops moving, and the second stop position can prevent the trolley body 1 from continuing to move to the right under the action of inertia; after the trolley body 1 stops, the movable die plate 61 descends and is attached to the upper surface of the mold, the mold clamp 62 works to clamp the mold, then the movable die plate 61 rises, the trolley body 1 returns to the initial position, and the mold changing of the equipment is completed. Through the above arrangement, the application solves the problems of inaccurate positioning when manually hoisting the mold, difficulty in operation and high danger when the mold is heavy, and greatly improves the mold changing efficiency of the equipment.

[0045] Since there is deviation in the position of the product each time it falls off the movable mold plate 61 and falls into the connector tray 32, it cannot be guaranteed that the product is in the same position of the connector tray 32, which will bring difficulty to the automatic grabbing of the subsequent mechanical hand. Conventionally, a visual recognition device needs to be set to recognize the specific position and direction of the product in the connector tray 32, and then the angle of the mechanical hand is adjusted to realize precise grabbing. However, this way needs to set an additional visual recognition device, which increases the cost of the equipment. In addition, the identification time and the adjustment time of the mechanical hand will greatly affect the production efficiency during the entire production process. Therefore, in order to improve the efficiency and reduce the cost, the product can be corrected by the correction mechanism 4 after falling into the connector tray 32, and then the mechanical hand can directly grab the product without adjusting the angle.

[0046] A specific setting of the correction mechanism 4 is provided in the embodiment. The correction mechanism 4 includes a driving assembly 41, a synchronous moving assembly 42, a guide plate 43, and a plurality of push plates 44. The guide plate 43 is arranged in the connector tray 32 and is arranged in parallel with the bottom of the connector tray 32. A plurality of guide grooves 431 are arranged on the guide plate 43 in the centripetal direction. The driving assembly 41 and the synchronous moving assembly 42 are both fixedly arranged on the bottom of the connector tray 32 and below the guide plate 43. The upper end of the synchronous moving assembly 42 is connected with the push plate 44 after passing through the guide groove 431. The driving assembly 41 is suitable for controlling the operation of the synchronous moving assembly 42, so as to control the synchronous movement of the plurality of push plates 44 in the centripetal direction or the centrifugal direction.

[0047] In order to realize it at a lower cost, the embodiment adopts the synchronous moving assembly 42, that is, a driving source drives the synchronous operation of each mechanism. In the above structure, the synchronous movement of the plurality of push plates 44 is realized by a single driving assembly 41, so as to ensure the consistency of the position correction of the product. The synchronous moving assembly 42 can adopt the following specific setting. The synchronous moving assembly 42 includes a plurality of moving units 421 and a plurality of first connecting rods 422. The plurality of moving units 421 are arranged uniformly in the circumferential direction around the center of the connector tray 32. The moving unit 421 includes a first moving part 4211, a second moving part 4212, and a second connecting rod 4213. The adjacent first moving parts 4211 are connected by the first connecting rod 422. The second moving part 4212 is connected with the first moving part 4211 by the second connecting rod 4213. The first moving part 4211 is arranged on the bottom of the connector tray 32. The second moving part 4212 is slidably connected on the guide groove 431. The driving assembly 41 is connected on one of the first moving parts 4211. When the driving assembly 41 drives the movement of the first moving part 4211, the remaining first moving parts 4211 are driven to move synchronously by the first connecting rod 422. At the same time, the second moving part 4212 is pushed to move synchronously along the guide groove 431 by the second connecting rod 4213.

[0048] The first moving part 4211 comprises an arc-shaped sliding rail 42111 and a first sliding block 42112. The arc-shaped sliding rails 42111 of the plurality of first moving parts 4211 are concentrically arranged. The first sliding block 42112 is slidingly arranged on the arc-shaped sliding rail 42111. The upper surface of the first sliding block 42112 is provided with two first connecting shafts 42113. The two first connecting shafts 42113 are adapted to assemble a first connecting rod 422 respectively, so as to realize linkage connection with an adjacent first sliding block 42112. The driving assembly 41 comprises an electric push rod 411 and a third connecting rod 412. The electric push rod 411 is hingedly connected with the third connecting rod 412. The third connecting rod 412 is hingedly connected with one of the first sliding blocks 42112. The linear reciprocating motion of the electric push rod 411 drives the first sliding block 42112 to slide along the arc-shaped sliding rail 42111 through the third connecting rod 412, without causing motion interference. The second moving part 4212 comprises a second sliding block 42121 and a second connecting shaft. The second connecting shaft is fixedly arranged on the lower surface of the second sliding block 42121. The first sliding block 42112 is provided with a third connecting shaft 42114. The two ends of the second connecting rod 4213 are connected with the second connecting shaft and the third connecting shaft 42114 respectively. The second sliding block 42121 is provided with a protrusion 42122 on the side surface, so as to be clamped on the guide groove 431 and slide on the guide groove 431 through the pushing of the second connecting rod 4213.

[0049] The path of the sliding rail and sliding block mechanism is unique. The linkage of a plurality of sliding rail and sliding block mechanisms is realized through a plurality of connecting rods. The structure is simple, the cost is low, the motion is reliable, the synchronous movement of a plurality of components can be realized through one driving source. The above structure arranged in the accessory tray 32 can realize the accuracy and consistency of product position correction under the premise of low cost.

[0050] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments. The above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application. These changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A low-pressure casting intelligent control rapid mold changing device, characterized in that, include: A trolley body, adapted to move horizontally from an initial position into a frame, the frame having a first stop position and a second stop position; a mold loading platform, fixedly mounted on the upper surface of the trolley body, used to support the mold; when mold changing is required, after the trolley body moves to the second stop position, the moving template on the frame descends to fit against the upper surface of the mold, and the mold is clamped by a clamping device on the moving template, completing the mold changing operation; a receiving mechanism, located on the side of the trolley body near the frame, equipped with a weight detection device; during production, after the trolley body moves towards the frame to the first stop position, the product falls onto the receiving mechanism, the weight detection device being adapted to detect the weight of the product; and a straightening mechanism, located within the receiving mechanism; after the product falls onto the receiving mechanism, the straightening mechanism operates, straightening the product to a centered position; when the trolley body returns to the initial position, the straightening mechanism resets.

2. The intelligent control rapid mold changing device for low-pressure casting as described in claim 1, characterized in that, The receiving mechanism includes a fixed plate, a receiving tray, and a buffer device. The fixed plate is fixed to the side of the trolley body near the frame. The receiving tray is disposed above the fixed plate. The receiving tray and the fixed plate are connected by the buffer device. The buffer device is adapted to provide elastic support and absorb the impact generated when the product falls.

3. The intelligent control rapid mold changing device for low-pressure casting as described in claim 2, characterized in that, The buffer device includes a first fixed seat, a buffer spring, a spring support, and a first adjusting screw. The first fixed seat is fixed to the lower surface of the receiving tray, and the spring support is fixed to the upper surface of the fixed plate. The first adjusting screw passes through the spring support and connects to the first fixed seat. The buffer spring is sleeved on the first adjusting screw and located between the first fixed seat and the spring support. After the trolley body moves to the first stop position, the receiving tray is below the moving template. The product is pushed out from the moving template and falls into the receiving tray. Due to the impact of the product falling, the receiving tray undergoes vertical displacement and compresses the buffer spring. The buffer spring absorbs the impact by deforming, thus achieving buffering.

4. The intelligent control rapid mold changing device for low-pressure casting as described in claim 2, characterized in that, The weight detection device is disposed between the receiving tray and the fixing plate. The weight detection device includes a second fixing seat, a second adjusting screw, and a gravity sensor. The second fixing seat is fixed at the center of the lower surface of the receiving tray. The second adjusting screw is threadedly installed on the lower side of the second fixing seat. The gravity sensor is fixed on the upper surface of the fixing plate and located directly below the second adjusting screw. When the product falls into the receiving tray, the receiving tray moves downward under the weight of the product, causing the second adjusting screw to move downward synchronously. The gravity sensor outputs the corresponding weight data by detecting the displacement of the second adjusting screw.

5. The intelligent control and rapid mold changing device for low-pressure casting as described in claim 1, characterized in that, The mold mounting platform is provided with several positioning slots, and the positioning slots are suitable for installing positioning keys. The mold is positioned and fixed at the center position of the mold mounting platform by the positioning keys.

6. The intelligent control rapid mold changing device for low-pressure casting as described in claim 1, characterized in that, The bottom of the frame is provided with a track, and the trolley body moves along the track. A first limit switch, a second limit switch, and a third limit switch are sequentially arranged on the track. The first limit switch marks the initial position of the trolley body, the second limit switch marks the deceleration position of the trolley body moving towards the frame during mold changing, and also serves as the first stop position of the trolley body during production. The third limit switch marks the second stop position of the trolley body. During production, the trolley body stops when it reaches the second limit switch, at which point the receiving mechanism is located directly below the moving template. When mold changing is required, when the trolley body is at the first limit switch, the mold is hoisted onto the mold mounting platform. When the trolley body passes the second limit switch, it decelerates and continues to move until it reaches the third limit switch and stops, at which point the mold mounting platform is located directly below the moving template.

7. The intelligent control rapid mold changing device for low-pressure casting as described in claim 6, characterized in that, The track is also equipped with a first limiter and a second limiter at each end. When the trolley body returns to the first limit switch, the first limiter restricts the trolley body from continuing to move. When the trolley body moves to the third limit switch, the second limiter restricts the trolley body from continuing to move.

8. The intelligent control rapid mold changing device for low-pressure casting as described in claim 2, characterized in that, The correction mechanism includes a drive assembly, a synchronous movement assembly, a guide plate, and several push plates. The guide plate is disposed inside the receiving tray and is parallel to the bottom of the receiving tray. Several guide grooves are provided on the guide plate along the centripetal direction. The drive assembly and the synchronous movement assembly are both fixedly disposed at the bottom of the receiving tray and located below the guide plate. The upper end of the synchronous movement assembly passes through the guide groove and connects to the push plate. The drive assembly is adapted to control the operation of the synchronous movement assembly, thereby controlling the several push plates to move synchronously along the centripetal or centrifugal direction.

9. A low-pressure casting intelligent control rapid mold changing device as described in claim 8, characterized in that, The synchronous movement component includes several moving units and several first connecting rods. The moving units are evenly arranged around the center of the receiving tray. Each moving unit includes a first moving part, a second moving part, and a second connecting rod. Adjacent first moving parts are connected by the first connecting rods. The second moving part is connected to the first moving part by the second connecting rod. The first moving part is located at the bottom of the receiving tray. The second moving part is slidably connected to the guide groove. The drive component is connected to one of the first moving parts. When the drive component drives the first moving part to move, it drives the remaining first moving parts to move synchronously through the first connecting rods. At the same time, it pushes the second moving part to move synchronously along the guide groove through the second connecting rods.

10. A low-pressure casting intelligent control rapid mold changing device as described in claim 9, characterized in that, The first moving part includes an arc-shaped slide rail and a first slider. Several arc-shaped slide rails of the first moving parts are concentrically arranged. The first slider is slidably mounted on the arc-shaped slide rail. Two first connecting shafts are provided on the upper surface of the first slider. Each of the two first connecting shafts is adapted to assemble a first connecting rod, thereby achieving a linkage connection with an adjacent first slider. The driving assembly includes an electric push rod and a third connecting rod. The electric push rod is hinged to the third connecting rod, and the third connecting rod is hinged to one of the first sliders. The linear reciprocating motion of the electric push rod drives the first slider to slide along the arc-shaped slide rail through the third connecting rod without causing motion interference. The second moving part includes a second slider and a second connecting shaft. The second connecting shaft is fixedly mounted on the lower surface of the second slider. The first slider is provided with a third connecting shaft. The two ends of the second connecting rod are respectively connected to the second connecting shaft and the third connecting shaft. A protrusion is provided on the side of the second slider to engage with the guide groove and slide on the guide groove by the push of the second connecting rod.

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