Molding machine for well lid casting

Abstract

The invention relates to the technical field of well lid casting, and provides a well lid casting molding machine which comprises a casting sand mold, the casting sand mold is provided with well lid casting cavities and a connecting channel, a casting inlet channel communicates with one well lid casting cavity, the casting sand mold is used for obtaining a multi-well-lid integral casting, and the connecting channel is used for casting a connecting piece; the broken piece channel is arranged on one side of the conveying table, is provided with a broken piece inlet and a broken piece outlet and is used for breaking the multi-well-lid integral casting into a plurality of well lid castings; the separation plates are arranged in the broken part channel and are sequentially arranged, a single channel is formed between every two adjacent separation plates, the size of each single channel is configured to allow one well lid casting to pass through, and a broken head part is arranged at the end, close to the broken part inlet, of each separation plate and used for acting on the connecting part to separate the connecting part from the well lid casting. According to the technical scheme, the technical problem that the machining efficiency of the modeling for well lid casting needs to be further improved in the related technology is solved.

Description

Technical Field

[0001] The invention relates to the technical field of manhole cover casting, and in particular to a molding machine for manhole cover casting. Background Art

[0002] The molding machine for manhole cover casting usually uses a fully automatic molding machine, which can realize the automation of the entire molding process, including a series of operations such as sand filling, compaction, demolding, box closing, box removal, pushing out, and casting. Through the cooperation of sensors and control systems, the parameters of each link can be accurately controlled to ensure the quality of the sand mold and the stability of production. It greatly reduces the labor intensity of workers and improves production efficiency and product quality stability. At the same time, automated operation can reduce the impact of human factors on the production process and improve production safety. Although the degree of automation has been improved to a certain extent, the processing efficiency still needs to be further improved, especially after the casting is completed and the sand is shaken, the casting cannot be quickly transported or transferred to the storage location, and more manual operations are still required to complete the stacking of the product. Summary of the invention

[0003] The present invention provides a molding machine for manhole cover casting, which solves the technical problem in the related art that the molding processing efficiency for manhole cover casting needs to be further improved.

[0004] The technical solution of the present invention is as follows: A molding machine for manhole cover casting, comprising: A casting sand mold, wherein the casting sand mold has a manhole cover casting cavity, wherein the manhole cover casting cavities are arranged in sequence, and further has a connecting channel, through which two adjacent manhole cover casting cavities are connected, and further has a casting inlet channel, wherein the casting inlet channel is connected to one of the manhole cover casting cavities, the casting sand mold is used to obtain a multi-manhole cover integral casting, and the connecting channel is used to cast a connecting piece; A vibrating sand-falling platform, wherein the vibrating sand-falling platform is used to place the casting sand mold after the casting is completed; A conveying platform, which is located on one side of the vibrating sand-falling platform and is used to convey the whole casting of the multi-manhole cover; A breaking passage, the breaking passage is arranged on one side of the conveying platform, the breaking passage has a breaking inlet and a breaking outlet, and is used to break the multi-manhole cover casting into a plurality of manhole cover castings; A separation plate is arranged in the breaking piece channel, and a plurality of the separation plates are arranged in sequence, a single channel is formed between two adjacent separation plates, the size of the single channel is configured for one of the manhole cover castings to pass through, and the separation plate has a breaking head at one end close to the breaking piece entrance, and the breaking head is used to act on the connecting piece to separate the connecting piece from the manhole cover casting.

[0005] As a further technical solution, the separation plate and the broken piece channel are both in the transverse direction, and further comprises: A first push plate, which is movably arranged at the entrance of the broken piece, and is used to push the whole casting of the multi-manhole cover into the broken piece channel after moving, and push the connecting piece to be acted upon by the broken head, so that the connecting piece is separated from the manhole cover casting; A first hydraulic linear driving member drives the first pushing plate to move.

[0006] As a further technical solution, the conveying platform is arranged upwardly with an inclination, the separation plate is arranged vertically, the broken piece channel has a vertical section, the separation plate is located in the vertical section, and the broken piece channel has a smooth transition section at one end close to the broken piece entrance.

[0007] As a further technical solution, it also includes: A material receiving platform, the material receiving platform is located below the broken parts outlet; A second push plate, which is movably arranged on one side below the broken piece outlet and is used to push away the manhole cover casting after moving: A second hydraulic linear driving member, wherein the first hydraulic linear driving member drives the second push plate to move.

[0008] As a further technical solution, the connecting channel is located at the upper part of the manhole cover casting cavity, and both ends of the connecting channel and the connecting piece have a reduced diameter section, the reduced diameter section is connected to the manhole cover casting cavity, and the diameter of the reduced diameter section gradually increases from close to the manhole cover casting cavity to away from the manhole cover casting cavity.

[0009] As a further technical solution, the cross-sectional area of ​​the cut-off head gradually increases from top to bottom, and there are two cut-off heads, which are respectively used to cut off the reduced diameter sections at both ends of the connecting piece.

[0010] As a further technical solution, the two broken heads are both set to swing, and after the swing, the upper ends of the two broken heads approach each other or move away from each other, and when the upper ends of the two broken heads approach each other, the structure formed by the upper ends of the two broken heads is pointed for stably entering the single channel, and when they move away from each other, the upper ends of the two broken heads are respectively used to face the reduced diameter sections at both ends of the connecting piece.

[0011] As a further technical solution, the lower ends of the two broken heads each have a touch portion, and after the broken heads swing, the touch portion extends into the single channel or is no longer located in the single channel, and the upper ends of the two broken heads are close to each other when extending into the single channel, and are no longer located in the single channel, wherein the two touch portions are used to be pushed by the entire casting of the multi-manhole cover when entering the single channel until they are no longer located in the single channel.

[0012] As a further technical solution, an elastic member is also included, and two ends of the elastic member are respectively connected to the two broken heads to provide a force for the broken heads to approach each other.

[0013] As a further technical solution, it also includes a guide wheel, which is arranged on the contact part and is used for contacting and guiding the manhole cover casting.

[0014] The working principle and beneficial effects of the present invention are: The present invention significantly improves the production efficiency and automation of manhole covers, reduces manual operations, and reduces labor intensity. The problem of much manual operation and low efficiency in the conveying and separation process of castings after casting in the prior art is solved, and continuous automated production from casting to separation is realized, thereby improving the stability and consistency of product quality. The problem of low efficiency and much manual operation in the sand shaking, conveying and separation process of the existing manhole cover casting molding machine after casting is solved, thereby improving the automation level and production efficiency of the entire production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0016] Figure 1 It is a schematic diagram of the external structure of the casting sand mold and the multi-manhole cover whole casting in the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the casting sand mold and the multi-manhole cover whole casting in the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of Embodiment 1 of the present invention; Figure 4 for Figure 3 Middle A is a schematic diagram of a partially enlarged structure; Figure 5 This is a schematic diagram of the three-dimensional structure of Example 2 of the present invention; Figure 6 This is a schematic diagram of the top view of the structure of Embodiment 2 of the present invention; Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure of the middle BB; Figure 8for Figure 7 Middle C is a schematic diagram of a partially enlarged structure; In the figure: casting sand mold-1, manhole cover casting cavity-101, connecting channel-102, casting inlet channel-103, multi-manhole cover whole casting-104, connecting part-105, manhole cover casting-106, diameter reduction section-107, vibrating sand falling platform-2, conveying platform-3, broken parts channel-4, broken parts inlet-401, broken parts outlet-402, vertical section-403, smooth transition section-404, separation plate-5, single channel-500, broken head-501, touch part-502, first push plate-6, first hydraulic linear drive member-7, material receiving platform-8, second push plate-9, second hydraulic linear drive member-10, elastic member-11, guide wheel-12. DETAILED DESCRIPTION

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0018] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0019] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0021] Reference Figure 1~Figure 4The present embodiment provides a molding machine for casting a manhole cover, comprising a casting sand mold 1, the casting sand mold 1 having a manhole cover casting cavity 101, the manhole cover casting cavity 101 being a plurality of manhole cover casting cavities 101 arranged in sequence, and also having a connecting channel 102, two adjacent manhole cover casting cavities 101 being connected through the connecting channel 102, and also having a casting inlet channel 103, the casting inlet channel 103 being connected to one of the manhole cover casting cavities 101, the casting sand mold 1 being used to obtain a multi-manhole cover integral casting 104, the connecting channel 102 being used to cast a connecting piece 105; a vibrating sand-falling platform 2 being used to place the casting sand mold 1 after casting; a conveying platform 3 being on one side of the vibrating sand-falling platform 2, Used to transport multiple manhole cover whole castings 104; the breaking channel 4 is arranged on one side of the conveying platform 3, and the breaking channel 4 has a breaking inlet 401 and a breaking outlet 402, which is used to break the multiple manhole cover whole castings 104 into a plurality of manhole cover castings 106; the separation plates 5 are arranged in the breaking channel 4, and a plurality of them are arranged in sequence, and a single channel 500 is formed between two adjacent separation plates 5, and the size of the single channel 500 is configured for one manhole cover casting 106 to pass through, and the separation plate 5 has a breaking head 501 at one end close to the breaking inlet 401, and the breaking head 501 is used to act on the connecting piece 105 to separate the connecting piece 105 from the manhole cover casting 106.

[0022] In this embodiment, the casting sand mold 1 of the molding machine for casting manhole covers has a plurality of manhole cover casting cavities 101 arranged in sequence. The design principle is to improve production efficiency by casting multiple manhole covers at one time. The technical effect is that multiple manhole cover castings can be obtained at the same time during one casting process, which greatly increases the output per unit time. The connecting channel 102 is used to connect adjacent manhole cover casting cavities 101. The design principle is to form a connector 105 during casting to connect multiple manhole covers as a whole. The technical effect is to facilitate the unified processing and transportation of multiple manhole covers in subsequent processes, reducing the cumbersome operations when processing a single manhole cover. The casting inlet channel 103 is connected to one of the manhole cover casting cavities 101. The design principle is to facilitate the injection of casting materials. The technical effect is to ensure the smoothness of the casting process so that the material can be evenly distributed in each manhole cover casting cavity 101. The vibrating sand falling platform 2 is used to place the casting sand mold 1 after the casting is completed. The design principle is to make the molding sand in the sand mold fall off by vibration. The technical effect is to quickly clean the sand mold and prepare for subsequent processing.

[0023] In this embodiment, the conveying platform 3 is located on one side of the vibrating sand-falling platform 2. The design principle is to convey the multi-manhole cover whole casting 104 after the sand-falling treatment to the next process. The technical effect is to realize the automatic conveying of the castings and reduce the labor intensity of manual handling. The broken parts channel 4 is arranged on one side of the conveying platform 3, and has a broken parts inlet 401 and a broken parts outlet 402. The design principle is to break the multi-manhole cover whole casting 104 into a single manhole cover casting 106 through a specific structure. The technical effect is to realize the automatic separation of castings and improve the degree of automation of production.

[0024] In this embodiment, the separation plate 5 is arranged in the breaking passage 4, and a single passage 500 is formed between two adjacent separation plates 5. The design principle is to limit the space so that the connecting piece 105 is broken by the breaking head 501 of the separation plate 5 when passing through. The technical effect is to accurately separate the connecting piece 105 from the manhole cover casting 106, and ensure the independence of each manhole cover casting 106.

[0025] In this embodiment, through the synergistic effect of the above-mentioned technical features, the molding machine for casting manhole covers significantly improves the production efficiency and automation of manhole covers, reduces manual operations, and reduces labor intensity. It solves the problem of many manual operations and low efficiency in the process of conveying and separating castings after casting in the prior art, realizes continuous automated production from casting to separation, and improves the stability and consistency of product quality. It solves the problem of low efficiency and many manual operations in the sand shaking, conveying and separation processes of the existing molding machine for casting manhole covers after casting, and improves the automation level and production efficiency of the entire production process.

[0026] Furthermore, the separation plate 5 and the broken piece channel 4 are both horizontally arranged, and also include a first push plate 6, which is movably arranged at the broken piece entrance 401, and after moving, is used to push the multi-manhole cover entire casting 104 into the broken piece channel 4, and push the connecting piece 105 to the broken piece head 501, so that the connecting piece 105 is separated from the manhole cover casting 106: the first hydraulic linear drive 7 drives the first push plate 6 to move.

[0027] In this embodiment, the separation plate 5 and the broken piece channel 4 are both arranged in the horizontal direction. The first push plate 6 is movably arranged at the broken piece entrance 401. The design principle is that, by utilizing the horizontal layout, the first push plate 6 can exert thrust in the horizontal direction, and push the multi-manhole cover whole casting 104 smoothly into the broken piece channel 4 along the horizontal direction. Such a design conforms to the overall structural layout, can make full use of the space, and make the pushing action more direct and efficient. The first hydraulic linear drive 7 drives the first push plate 6 to move. The design principle is based on the hydraulic system's ability to provide a powerful, stable and controllable linear thrust. Through the pressure transmission of the hydraulic oil, the moving speed, stroke and thrust of the first push plate 6 can be accurately controlled.

[0028] In this embodiment, the cooperation between the transversely arranged separation plate 5 and the broken piece channel 4 and the first push plate 6 enables the whole casting 104 of the multi-manhole cover to smoothly enter the broken piece channel 4, and under the push of the first push plate 6, the connecting piece 105 can be accurately separated by the broken head 501. The use of the first hydraulic linear drive 7 ensures that the pushing action is strong, smooth and precise, improves the efficiency and reliability of the separation, and reduces the situation of separation failure or incompleteness caused by unstable or insufficient thrust. Through the coordinated action of the separation plate 5, the broken piece channel 4, the first push plate 6 and the first hydraulic linear drive 7, the efficient and accurate separation of the whole casting 104 of the multi-manhole cover is achieved, the automation degree and production efficiency of the manhole cover casting are improved, the need for manual intervention and labor intensity are reduced, and the automation and efficiency problems in the separation process of the manhole cover casting are solved.

[0029] Example 2 like Figure 5~Figure 8 As shown, further, the difference with respect to Example 1 is that the conveying platform 3 is arranged to be inclined upward, the separation plate 5 is arranged vertically, the broken piece channel 4 has a vertical section 403, the separation plate 5 is located in the vertical section 403, and the broken piece channel 4 has a smooth transition section 404 at one end close to the broken piece inlet 401.

[0030] In this embodiment, the difference from the embodiment 1 is that the conveying platform 3 is designed to be tilted upward. The design principle is to use the tilted structure to convey the multi-manhole cover whole casting 104 upward to prepare for the subsequent gravity drop of the multi-manhole cover whole casting 104. The separation plate 5 is vertically arranged, and the broken piece channel 4 has a vertical section 403, and the separation plate 5 is located in the vertical section 403. The design principle is that the multi-manhole cover whole casting 104 falls freely in the vertical section 403 of the broken piece channel 4, and reacts with the vertical separation plate 5, so that the multi-manhole cover whole casting 104 is subjected to the action of the broken head 501 of the separation plate 5 in the vertical direction during the gravity drop of the multi-manhole cover whole casting 104, and the connection piece 105 is cut off from the manhole cover casting 106, and finally divided into a plurality of manhole cover castings 106. The technical effect is to ensure the accuracy and efficiency of separation, and avoid the situation of incomplete separation or damage to the manhole cover casting 106 caused by improper separation direction.

[0031] In this embodiment, the end of the broken piece channel 4 close to the broken piece entrance 401 has a smooth transition section 404, and its design principle is to enable the multi-manhole cover whole casting 104 to smoothly enter the vertical section 403 in the broken piece channel 4 from the conveying platform 3 through a smooth curve or inclined transition. The technical effect is to reduce the impact and jamming of the casting when entering the broken piece channel 4, protect the surface quality of the casting, and ensure the continuity and stability of the entire separation process. Through the inclined upward setting of the conveying platform 3, the vertical setting of the separation plate 5 and the design of the smooth transition section 404 of the broken piece channel 4, the conveying and separation process of the manhole cover casting is optimized, the operating efficiency and stability of the equipment are improved, the failure rate of the equipment is reduced, and the quality of the manhole cover casting and the continuity of production are guaranteed.

[0032] Furthermore, it also includes a material receiving platform 8, which is located below the broken parts outlet 402; the second push plate 9 is movably arranged on one side below the broken parts outlet 402, and is used to push away the manhole cover casting 106 after moving: the first hydraulic linear drive 7 drives the second push plate 9 to move.

[0033] In this embodiment, the receiving platform 8 is located below the broken parts outlet 402, and its design principle is to provide a receiving and temporary storage position for the manhole cover casting 106 that has been separated from the broken parts outlet 402. In this way, it can be ensured that the manhole cover casting 106 can fall in an orderly manner to avoid direct falling and causing damage or confusion. The technical effect is to ensure the safe reception of the manhole cover casting 106 after separation, and to prepare for subsequent processing. The second push plate 9 is movably arranged on one side below the broken parts outlet 402, and its design principle is to transfer the manhole cover casting 106 to a designated position or the next process through a pushing action after it falls on the receiving platform 8. This design can clean the receiving platform 8 in time to ensure continuous production. The second hydraulic linear drive 10 drives the second push plate 9 to move, and its design principle is to use the powerful driving force and precise control performance of the hydraulic system to ensure that the movement of the second push plate 9 is stable, powerful and accurate. The technical effect is that the manhole cover casting 106 can be pushed efficiently and reliably, thereby improving the degree of automation and efficiency of production.

[0034] In this embodiment, the synergistic effect of the material table 8, the second push plate 9 and the second hydraulic linear drive 10 makes the receiving and transferring process of the manhole cover casting 106 after separation more automated and orderly, improves the continuity and efficiency of the production process, reduces manual intervention, and ensures the stability and reliability of production.

[0035] Furthermore, the connecting channel 102 is located at the upper part of the manhole cover casting cavity 101, and both ends of the connecting channel 102 and the connecting piece 105 have a reduced diameter section 107, the reduced diameter section 107 is connected to the manhole cover casting cavity 101, and the diameter of the reduced diameter section 107 gradually increases from close to the manhole cover casting cavity 101 to far away from the manhole cover casting cavity 101.

[0036] In this embodiment, the connecting channel 102 is located at the upper part of the manhole cover casting cavity 101. The design principle is to connect multiple manhole cover casting cavities 101 at the top, so that during the casting process, the molten metal can flow smoothly from the upper connecting channel 102 into each manhole cover casting cavity 101, ensuring the uniformity and synchronization of the casting. Both ends of the connecting channel 102 and the connecting piece 105 have a reduced diameter section 107, and the diameter of the reduced diameter section 107 gradually increases from close to the manhole cover casting cavity 101 to far away from the manhole cover casting cavity 101. The design principle is that the reduced diameter section 107 can provide a stress concentration area when the connecting piece 105 is separated from the manhole cover casting 106, making separation easier. At the same time, during the casting process, the reduced diameter section 107 can reduce the residual molten metal at the connection part and improve the quality of the manhole cover casting 106.

[0037] In this embodiment, the position setting of the connecting channel 102 and the design of the reduced diameter section 107 make the casting process more stable and efficient, the separation of the connecting piece 105 and the manhole cover casting 106 is smoother, the resistance during the separation process and the damage to the manhole cover casting 106 are reduced, and the production quality and production efficiency of the manhole cover are improved. Through the position and structural design of the connecting channel 102 and the setting of the reduced diameter section 107, the casting and separation process of the manhole cover is optimized, the product quality and production efficiency are improved, and the production cost and scrap rate are reduced.

[0038] Furthermore, the cross-sectional area of ​​the cut-off portion 501 gradually increases from top to bottom, and the cut-off portion 501 has two cut-off portions, and the two cut-off portions 501 are respectively used to cut off the reduced diameter sections 107 at both ends of the connecting piece 105 .

[0039] In this embodiment, the cross-sectional area of ​​the cut-off head 501 gradually increases from top to bottom, and two cut-off heads 501 are provided. The design principle is that the gradual increase in cross-sectional area enables the cut-off head 501 to gradually apply greater pressure when contacting the reduced diameter sections 107 at both ends of the connector 105, thereby achieving more effective truncation. The two cut-off heads 501 are respectively used to truncate the reduced diameter sections 107 at both ends of the connector 105. The principle of this design is that according to the structural characteristics of the reduced diameter section 107, truncation from both ends can more accurately separate the connector 105 from the manhole cover casting 106, thereby reducing uncertainty and error in the separation process.

[0040] In this embodiment, the special shape and distribution of the cut-off head 501 can more efficiently and accurately cut off the reduced diameter section 107, ensuring that the connector 105 and the manhole cover casting 106 are separated cleanly, reducing the residual connection during the separation process and the potential damage to the manhole cover casting 106. At the same time, the speed and success rate of separation are improved, which helps to improve the efficiency of the entire production process and product quality. Through the shape and distribution design of the cut-off head 501, the separation process of the connector 105 and the manhole cover casting 106 is further optimized, the separation effect and reliability are improved, and thus the overall performance and production efficiency of the molding machine for manhole cover casting are improved.

[0041] Furthermore, the two broken heads 501 are both swingingly arranged, and after the swinging, the upper ends of the two broken heads 501 approach each other or move away from each other, and when the upper ends of the two broken heads 501 approach each other, the structure formed by the upper ends of the two broken heads 501 is pointed for stably entering the single channel 500, and when they move away from each other, the upper ends of the two broken heads 501 are respectively used for the reduced diameter sections 107 at both ends of the opposing connecting piece 105.

[0042] In this embodiment, the two broken heads 501 are both swing-set, and the design principle is to change the relative position of the upper ends of the two broken heads 501 by swinging. When the upper ends of the two broken heads 501 are close to each other after swinging, the structure formed is pointed. Such a design principle is to enter the single channel 500 more stably, reduce the resistance and jamming during entry, and ensure that the separation operation can start smoothly. When the upper ends of the two broken heads 501 are away from each other, their upper ends are respectively used for the reduced diameter sections 107 at both ends of the opposite connecting member 105. This design principle is to accurately apply force to the reduced diameter section 107 during separation to achieve precise truncation.

[0043] In this embodiment, the swing setting of the cut-off head 501 increases the flexibility and adaptability of the operation. When they are close to each other, it is convenient to enter the single channel 500, which improves the initial stability of the operation; when they are far away from each other, they can accurately face the reduced diameter section 107, which improves the accuracy and efficiency of separation. Through the swing design of the cut-off head 501, the separation operation process is further optimized, and the stability, accuracy and efficiency of the separation of the manhole cover casting 106 and the connecting piece 105 are improved, thereby improving the performance and production effect of the entire manhole cover casting molding machine.

[0044] Furthermore, the lower ends of the two broken heads 501 each have a touching portion 502. After the broken heads 501 swing, the touching portion 502 extends into the single channel 500 or is no longer located in the single channel 500, and the upper ends of the two broken heads 501 approach each other when extending into the single channel 500, and the upper ends of the two broken heads 501 move away from each other when being no longer located in the single channel 500. When the two touching portions 502 enter the single channel 500, they are used to be pushed by the multi-manhole cover casting 104 until they are no longer located in the single channel 500.

[0045] In this embodiment, the lower ends of the two decapitation heads 501 are provided with a touch portion 502. When the decapitation heads 501 swing, the touch portion 502 extends into the single channel 500 or is removed from the single channel 500. The design principle is to control the working state of the decapitation heads 501 by the cooperation between the touch portion 502 and the single channel 500 and the change of their positions. When extending into the single channel 500, the upper ends of the two decapitation heads 501 are close to each other. The design at this time is to enable the decapitation heads 501 to enter the single channel 500 with a narrower front end, so as to prepare for the subsequent separation action.

[0046] When the single channel 500 is cancelled, the upper ends of the two broken heads 501 are separated from each other, so that the broken heads 501 can exert a separation force on the reduced diameter section 107 of the connector 105. When the two contact parts 502 enter the single channel 500, they are pushed by the multi-manhole cover casting 104 until they are cancelled. The design principle is to use the gravity drop of the multi-manhole cover casting 104 to trigger the state change of the broken heads 501, so as to realize automatic control.

[0047] In this embodiment, the design of the touch portion 502 makes the movement of the decapping head 501 more flexible and precise. It can automatically adjust according to the movement of the multi-manhole cover whole casting 104, improving the automation and efficiency of the separation operation. At the same time, it reduces the complexity of manual intervention and operation. Through the setting of the touch portion 502 and its interaction with the multi-manhole cover whole casting 104, the working mechanism of the decapping head 501 is further optimized, the automation performance and production efficiency of the molding machine for manhole cover casting are improved, and the stability and reliability of the manhole cover separation process are ensured.

[0048] Furthermore, an elastic member 11 is included, and two ends of the elastic member 11 are respectively connected to the two broken heads 501 to provide a force for the broken heads 501 to move closer to each other.

[0049] In this embodiment, an elastic member 11 is provided, and two ends of the elastic member 11 are respectively connected to the two broken heads 501. The design principle is to use the elastic restoring force of the elastic member 11 to provide the broken heads 501 with a force to approach each other. Under normal conditions, the elastic member 11 keeps the two broken heads 501 in a tendency to approach each other. When the whole casting 104 of the multi-manhole cover pushes the touch portion 502, it overcomes the elastic force of the elastic member 11, and the broken heads 501 are moved away from each other to perform a separation operation. When the separation operation is completed and the whole casting 104 of the multi-manhole cover passes, the elastic force of the elastic member 11 can restore the broken heads 501 to their initial state of being close to each other, preparing for the next separation operation.

[0050] In this embodiment, the presence of the elastic member 11 ensures the stable position of the broken head 501 in the non-working state, thereby improving the reliability and stability of the equipment. At the same time, the elastic force of the elastic member 11 helps the broken head 501 to quickly reset, thereby improving the working efficiency. The cooperation between the elastic member 11 and the broken head 501 further optimizes the working performance of the separation component, improves the overall working efficiency and stability of the molding machine for manhole cover casting, reduces the occurrence rate of failures, and ensures the continuity and efficiency of production.

[0051] Furthermore, it also includes a guide wheel 12, which is arranged on the contact portion 502 and is used for contacting and guiding the manhole cover casting 106.

[0052] In this embodiment, the guide wheel 12 is arranged on the touch portion 502. The design principle is to reduce the friction resistance between the touch portion 502 and the manhole cover casting 106 through the rolling contact of the guide wheel 12. When the whole casting 104 of the multi-manhole cover pushes the touch portion 502, the guide wheel 12 can rotate more smoothly, making the movement of the touch portion 502 more sensitive and efficient. The setting of the guide wheel 12 significantly reduces the wear between components and extends the service life of the equipment. At the same time, due to the reduced friction, the manhole cover casting 106 pushes the touch portion 502 more smoothly and easily, improving the accuracy and reliability of the separation operation. The addition of the guide wheel 12 further optimizes the performance of the separation components, improves the working efficiency and stability of the equipment, reduces maintenance costs, and ensures the good performance of the molding machine for manhole cover casting in long-term operation.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A molding machine for manhole cover casting, characterized in that: include: A casting sand mold (1), the casting sand mold (1) having a manhole cover casting cavity (101), wherein the manhole cover casting cavities (101) are arranged in sequence in a plurality, and further having a connecting channel (102), wherein two adjacent manhole cover casting cavities (101) are connected via the connecting channel (102), and further having a casting inlet channel (103), wherein the casting inlet channel (103) is connected to one of the manhole cover casting cavities (101), the casting sand mold (1) is used to obtain a multi-manhole cover integral casting (104), and the connecting channel (102) is used to cast a connecting piece (105); A vibrating sand-falling platform (2), wherein the vibrating sand-falling platform (2) is used to place the casting sand mold (1) after the casting is completed; A conveying platform (3), the conveying platform (3) being located on one side of the vibrating sand-falling platform (2) and being used for conveying the multi-manhole cover whole casting (104); A breaking passage (4), the breaking passage (4) being arranged on one side of the conveying platform (3), the breaking passage (4) having a breaking entrance (401) and a breaking exit (402), and being used for breaking the multi-manhole cover casting (104) into a plurality of manhole cover castings (106); A separation plate (5), wherein the separation plates (5) are arranged in the breaking passage (4) and are arranged in sequence. A single passage (500) is formed between two adjacent separation plates (5). The size of the single passage (500) is configured to allow one of the manhole cover castings (106) to pass through. The separation plate (5) has a breaking head (501) at one end close to the breaking entrance (401). The breaking head (501) is used to act on the connecting piece (105) to separate the connecting piece (105) from the manhole cover casting (106).

2. A molding machine for manhole cover casting according to claim 1, characterized in that: The separation plate (5) and the broken piece channel (4) are both in the transverse direction, and further include: A first push plate (6), the first push plate (6) being movably arranged at the broken piece entrance (401), and being used to push the multi-manhole cover whole casting (104) into the broken piece channel (4) after being moved, and to push the connecting piece (105) to be acted upon by the broken piece portion (501), so that the connecting piece (105) is separated from the manhole cover casting (106): A first hydraulic linear drive (7), wherein the first hydraulic linear drive (7) drives the first push plate (6) to move.

3. A molding machine for manhole cover casting according to claim 1, characterized in that: The conveying platform (3) is arranged upwardly and tilted, the separation plate (5) is arranged vertically, the broken piece channel (4) has a vertical section (403), the separation plate (5) is located in the vertical section (403), and the broken piece channel (4) has a smooth transition section (404) at one end close to the broken piece inlet (401).

4. A molding machine for casting a manhole cover according to claim 2, characterized in that: Also includes: A material receiving platform (8), the material receiving platform (8) being located below the broken piece outlet (402); A second push plate (9), the second push plate (9) being movably arranged on one side below the broken piece outlet (402) and being used to push away the manhole cover casting (106) after being moved: A second hydraulic linear drive (10), wherein the first hydraulic linear drive (7) drives the second push plate (9) to move.

5. A molding machine for casting a manhole cover according to claim 1, characterized in that: The connecting channel (102) is located at the upper part of the manhole cover casting cavity (101), and both ends of the connecting channel (102) and the connecting piece (105) have a reduced diameter section (107), the reduced diameter section (107) is connected to the manhole cover casting cavity (101), and the diameter of the reduced diameter section (107) gradually increases from close to the manhole cover casting cavity (101) to far away from the manhole cover casting cavity (101).

6. A molding machine for casting a manhole cover according to claim 5, characterized in that: The cross-sectional area of ​​the cutting head (501) gradually increases from top to bottom, and there are two cutting heads (501), which are respectively used to cut off the reduced diameter sections (107) at both ends of the connecting piece (105).

7. A molding machine for casting a manhole cover according to claim 6, characterized in that: The two broken heads (501) are both swingably arranged, and after the swing, the upper ends of the two broken heads (501) approach each other or move away from each other, and when the upper ends of the two broken heads (501) approach each other, the structure formed by the upper ends of the two broken heads (501) is pointed for stably entering the single channel (500), and when they move away from each other, the upper ends of the two broken heads (501) are respectively used to face the reduced diameter sections (107) at both ends of the connecting piece (105).

8. A molding machine for casting a manhole cover according to claim 7, characterized in that: The lower ends of the two broken heads (501) are each provided with a touching portion (502); after the broken heads (501) swing, the touching portion (502) extends into the single channel (500) or is no longer located in the single channel (500); and when extending into the single channel (500), the upper ends of the two broken heads (501) are close to each other; when no longer located in the single channel (500), the upper ends of the two broken heads (501) are away from each other; wherein, when the two touching portions (502) enter the single channel (500), they are used to be pushed by the multi-manhole cover casting (104) until they are no longer located in the single channel (500).

9. A molding machine for casting a manhole cover according to claim 8, characterized in that: It also comprises an elastic member (11), wherein two ends of the elastic member (11) are respectively connected to the two broken heads (501), providing a force for bringing the broken heads (501) closer to each other.

10. A molding machine for manhole cover casting according to claim 9, characterized in that: It also includes a guide wheel (12), wherein the guide wheel (12) is arranged on the contact portion (502) and is used for contacting and guiding the manhole cover casting (106).

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