Full-automatic annular backflow production equipment for pouring polyurethane products

Abstract

The invention discloses full-automatic annular backflow production equipment for polyurethane product pouring, which comprises a marching auxiliary device, a conveying device and a mold carrying device, the marching auxiliary device comprises a conveying area and a wiring mechanism, the wiring mechanism comprises a line concentration frame, a slip ring assembly, a drag chain and a moving frame, the line concentration frame is arranged in the conveying area, and the slip ring assembly is arranged in the conveying area. The sliding ring assembly and the drag chain are arranged on the line concentration frame, the sliding ring assembly is in sliding connection with the line concentration frame and connected with the drag chain, an outgoing line of the sliding ring assembly extends and is fixed to the movable frame, the movable frame is fixedly connected to the conveying device, and the conveying device does annular motion in the conveying area. The mold carrying device is arranged on the conveying device and connected with a cable fixed to the movable frame. A plurality of mold loading assemblies can be assembled on the conveying device, a plurality of foaming molds are allowed to carry out foaming operation at the same time, and the wiring mechanism is matched with the moving frame through the sliding ring assembly, the drag chain and the moving frame, so that the problems that wiring and wiring are complex, and cables are prone to being twisted and broken are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of foaming production lines, and particularly to a fully automatic annular reflux production device for pouring polyurethane products. Background Art

[0002] In existing foaming production lines, foaming is usually carried out for a single mold for transportation, resulting in low production capacity. Although some production lines can transport multiple groups of molds, since the mold closing and mold locking of each mold cart require power on, air supply, etc. for driving to achieve automation, the energy supply in some production line bodies is not continuous and needs to be manually plugged in, that is, a quick plug is inserted into the energy pipeline interface on the mold rack in each section, which is very inconvenient. And in some production line bodies, due to the lack of rationality in the layout of the wiring mechanism, the pipeline layout is complex and messy, and the corresponding pipelines are easily damaged or entangled during movement, resulting in easy occurrence of faults. Once a fault occurs, the entire line needs to stop production, the fault troubleshooting is difficult, the repair time is long, it is easy to cause the scrapping of multiple products, resulting in a high scrap rate and large losses. Summary of the Invention

[0003] An object of the present invention is to overcome the deficiencies in the prior art and provide a fully automatic annular reflux production device for pouring polyurethane products that allows multiple foaming molds to perform foaming operations simultaneously and has simple wiring and connection.

[0004] The object of the present invention is achieved by the following technical solutions:

[0005] A fully automatic annular reflux production device for pouring polyurethane products, comprising: a traveling auxiliary device, a conveying device, and a mold-carrying device. The traveling auxiliary device includes a conveying area and a wiring mechanism. The wiring mechanism includes a cable rack, a slip ring assembly, a drag chain, and a moving frame. The cable rack is arranged in the conveying area, the slip ring assembly and the drag chain are arranged on the cable rack, the slip ring assembly is slidably connected to the cable rack, the slip ring assembly is connected to the drag chain, the outgoing line of the slip ring assembly extends and is fixed on the moving frame, and the movement of the moving frame drives the slip ring assembly and the drag chain to move forward or backward on the cable rack; the conveying device is arranged in the conveying area, the conveying device makes a circular motion in the conveying area, and the moving frame is fixedly connected to the conveying device; the mold-carrying device is arranged on the conveying device and is used for loading foaming molds, and the mold-carrying device is connected to the cables fixed on the moving frame.

[0006] In an embodiment, the traveling auxiliary device further includes an annular backing plate and an annular guide rail. The annular backing plate encloses the outside of the conveying area, the annular guide rail is laid on the annular backing plate, and the conveying device is slidably connected to the annular guide rail.

[0007] In one embodiment, the annular gasket is formed by arc portions at two ends and straight portions at two sides, and both ends of the straight portion are respectively connected to the arc portions.

[0008] In one embodiment, the straight portion is composed of a plurality of linear pads connected in sequence.

[0009] In one embodiment, there are two circular guide rails, one of which is laid along the travel track of the conveying device, and the other of which is laid along the travel track of the mold carrying device.

[0010] In one embodiment, the cable hub includes a frame body, a drag chain bracket and a drag chain groove, the drag chain brackets are arranged on the frame body at intervals, the drag chain groove is installed on the drag chain bracket, a slide rail is arranged on the drag chain groove, the drag chain is arranged in the drag chain groove, and the slip ring assembly is slidably connected to the slide rail, and when sliding, it drives the drag chain to move in the drag chain groove.

[0011] In one embodiment, the slip ring assembly includes a base and a slip ring, the base is symmetrically provided with pulley blocks on two opposite sides, the pulley blocks slide on the slide rail, and the slip ring is connected to the base.

[0012] In one embodiment, positioning wheels are symmetrically arranged on two opposite sides of the base, and positioning wheel pressing plates are symmetrically arranged above and below the positioning wheels on the inner side of the base.

[0013] In one embodiment, the slip ring includes a fixed part and a rotating part, the fixed part is connected to the base via a flange, the rotating part is rotatably connected to the fixed part, a driving ring handle is provided between the rotating part and the fixed part, and the driving ring handle is used to ensure the concentricity of the relative rotation between the rotating part and the fixed part.

[0014] In one embodiment, the mold carrier and the movable rack are both provided in plurality, and the mold carrier and the movable rack are arranged on the conveying device at intervals.

[0015] Compared with the prior art, the present invention has at least the following advantages:

[0016] 1. The fully automatic circular reflux production equipment for casting polyurethane products of the present invention places the wiring hub in the wiring mechanism in the transmission area without occupying additional space. The wiring hub is provided with a slip ring assembly and a drag chain linkage. The outgoing line of the slip ring assembly is extended and fixed on the mobile frame, and the mobile frame is fixed on the transmission device and moves in a circular motion with the transmission device to ensure the consistency of the relative position of the mobile frame and the mold carrier. This avoids the problem of fixed wiring or using a drag chain to move alone, which is complicated in wiring and easily causes cable twisting and breakage, and troublesome energy access to the mold carrier. The entire production line of the present invention is compact, stable in operation, and highly efficient. The slip ring assembly and the drag chain are modularly designed and can be quickly disassembled and replaced.

[0017] 2. The full-automatic annular reflux production equipment for pouring polyurethane products of the present invention can be equipped with multiple mold-carrying components on the conveying device, thereby allowing multiple foaming molds to perform foaming operations simultaneously during the conveying process. At the same time, the moving frame and the mold-carrying device are arranged at intervals on the conveying device, facilitating the access of wiring according to production requirements and enhancing the flexibility of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below.

[0019] Figure 1 It is a schematic structural diagram of the full-automatic annular reflux production equipment for pouring polyurethane products of the present invention;

[0020] Figure 2 It is a schematic structural diagram of the wiring mechanism in an embodiment of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the slip ring assembly in an embodiment of the present invention;

[0022] Figure 4 It is a schematic structural diagram of the conveying device in an embodiment of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the assembly module of the conveying device in an embodiment of the present invention;

[0024] Figure 6 It is a schematic structural diagram of the mold-carrying device in an embodiment of the present invention;

[0025] Figure 7 It is a schematic structural diagram of the top-tightening driving part of the mold-carrying device in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The embodiments of the present application will be described in more detail with reference to the drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0027] It should be understood that, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] The technical solutions of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0029] Please refer to Figure 1 、 Figure 2 For the embodiments of Figure 1 and Figure 2 , a fully automatic annular reflux production device for polyurethane product casting includes: a traveling assistance device 500, a conveying device 600 and a mold carrying device 700. The traveling assistance device 500 includes a conveying area 510 and a wiring mechanism 520. The wiring mechanism 520 includes a cable rack 521, a slip ring assembly 522, a drag chain 523 and a moving frame 524. The cable rack 521 is arranged in the conveying area 510. The slip ring assembly 522 and the drag chain 523 are arranged on the cable rack 521. The slip ring assembly 522 is slidably connected to the cable rack 521. The slip ring assembly 522 is connected to the drag chain 523. The outgoing line of the slip ring assembly 522 is extended and fixed on the moving frame 524. The movement of the moving frame 524 drives the slip ring assembly 522 and the drag chain 523 to move forward or backward on the cable rack 521. The conveying device 600 is arranged in the conveying area 510. The conveying device 600 is slidably connected to the annular guide rail 520. The moving frame 524 is fixedly connected to the conveying device 600. The mold carrying device 700 is connected to the conveying device 600 and is used for loading the foaming mold. The mold carrying device 700 is connected to the cable fixed on the moving frame 524.

[0030] It should be noted that the wire collecting rack 521, as a bearing structure, is fixed within the conveying area 510. The slip ring assembly 522 is slidably connected to the wire collecting rack 521 and can move flexibly along the wire collecting rack 521. During the circular conveying process, cables such as gas, electricity, and water are integrated within the drag chain 523. The drag chain 523 is stably arranged on the wire collecting rack 521, and its wire outlet end is connected to the wire inlet end of the slip ring assembly 522. When the slip ring assembly 522 slides on the wire collecting rack 521, it drives the drag chain 523 to move synchronously, thus solving the problems of cable transmission and layout for gas, electricity, water, etc. during the circular conveying process. This not only ensures the stable connection of the lines but also avoids damage to the lines caused by bending and winding. The conveying device 600 provides reliable power support for the circular conveying of the mold-carrying device 700. The moving frame 524 is fixedly connected to the conveying device 600. When the conveying device 600 starts and begins circular conveying, the moving frame 524 moves synchronously therewith, enabling the moving frame 524 to accurately follow the trajectory of the conveying device 600, thereby ensuring that the movement of the slip ring assembly 522 and the drag chain 523 is highly consistent with the operation of the conveying device 600. The mold-carrying device 700 is connected to the conveying device 600, and the foaming mold is loaded on the mold-carrying device 700. Along with the circular conveying of the conveying device 600, the mold-carrying device 700 also performs circular motion, and during the circular motion process, a series of processes such as mold loading, mold closing, mold locking, glue injection, unlocking, and mold unloading for foaming production are completed. At the same time, the mold-carrying device 700 is connected to the cables fixed on the moving frame 524, which enables the mold-carrying device 700 to continuously obtain necessary energy supplies such as gas, electricity, and water during the process of completing the series of foaming production processes, ensuring the normal progress of foaming production during the conveying process. In actual work, when the conveying device 600 starts, it drives the moving frame 524 and the mold-carrying device 700 to convey along the circular guide rail together. The slip ring assembly 522 and the drag chain 523 slide smoothly on the wire collecting rack 521. Cables extending from the wire outlet end of the slip ring assembly 522 are fixed on the moving frame 524. During the movement of the moving frame 524 along with the driving device 600, it drives the slip ring assembly 522 and the drag chain 523 to move forward or backward on the wire collecting rack 521. In this way, during the conveying process, the mold-carrying device 700 obtains energy through the wiring access on the moving frame 524, ensuring the normal operation of the foaming mold. This working mode enables the entire production line to operate efficiently and stably, realizes the automatic circular conveying of the foaming mold, improves production efficiency, reduces labor costs, and at the same time ensures the stability of product quality.

[0031] The above production line places the cable gathering rack 521 in the wiring mechanism 520 inside the conveying area 510, without occupying extra space. A slip ring assembly 522 is arranged on the cable gathering rack 521 and is linked with a drag chain 523. The outgoing line of the slip ring assembly 522 extends and is fixed on a moving rack 524. The moving rack 524 is fixed on a conveying device 600 and makes a circular motion along with the conveying device 600, ensuring the consistent relative position between the moving rack and the mold-carrying device 600, avoiding the problems of complex fixed wiring or separate movement of the drag chain, such as complex wiring, easy cable twisting and breaking, and troublesome energy access of the mold-carrying device 600. The whole production line is compact, operates stably, has high efficiency, and the slip ring assembly and the drag chain are modularly designed and can be quickly disassembled and replaced.

[0032] Furthermore, the traveling assistance device 500 further includes an annular backing plate 530 and an annular guide rail (not marked in the figure). The annular backing plate 530 encloses the outside of the conveying area 510, and the annular guide rail is laid on the annular backing plate 530. The conveying device 600 is slidably connected with the annular guide rail.

[0033] It should be noted that the annular backing plate 530 can be laid on the ground outside the conveying area 510 through anchor bolts, providing a uniform supporting force for the conveying device 600 to drive the moving rack 524 and the mold-carrying device 700 to run circularly, reducing the deviation or jitter of the conveying device 600 caused by uneven ground. Furthermore, an annular guide rail is provided to ensure the stable conveyance of the conveying device 600 along the annular guide rail. According to different specific working conditions and environments, the annular backing plate 530 can also be made of wear-resistant, moisture-proof, sound-absorbing, shock-proof and other materials.

[0034] For the convenience of the production, installation and maintenance of the annular backing plate 530, the annular backing plate 530 is enclosed by arc parts 531 at both ends and straight parts 532 on both sides. The two ends of the straight part 531 are respectively connected with the arc parts 531, that is, the annular backing plate 530 is installed in modules. In this way, when a certain part is damaged, the damaged part can be quickly replaced without replacing the whole, saving time and cost and reducing the maintenance cost. Moreover, different parts can adopt different materials or thicknesses, so as to optimize the local strength of the annular backing plate 530.

[0035] For the convenience of further matching the production capacity requirements in the future, the straight part 531 is divided into multiple sequentially connected straight backing plates. In this way, by increasing the number of straight backing plates, the length of the annular backing plate 530 can be increased, the area of the conveying area 510 increases accordingly, a longer conveying device 600 can be accommodated, the number of mold-carrying devices 700 can be increased, and the production capacity can be expanded.

[0036] Two annular guide rails are provided. One annular guide rail is laid along the traveling track of the conveying device 600, and the other annular guide rail is laid along the traveling track of the mold-carrying device 700.

[0037] It is understandable that the annular guide rail laid along the walking track of the conveying device 600 is responsible for the overall motion control, bears the weights of the conveying device 600, the mold-carrying device 700 and the molds loaded thereon, and the annular guide rail laid along the walking track of the mold-carrying device 700 provides independent support and positioning for the mold-carrying device 600 to ensure that the molds maintain a stable posture during the conveying process. Thus, the two annular guide rails cooperate to further ensure that the conveying device 600 and the mold-carrying device 700 avoid jolting due to uneven ground when walking.

[0038] Refer to Figure 2 , the cable collecting rack 521 includes a rack body 521a, a drag chain bracket 521b and a drag chain groove 521c. The drag chain brackets 521b are arranged on the rack body 521a at intervals, the drag chain groove 521c is installed on the drag chain brackets 521b, a slide rail (not marked in the figure) is arranged on the drag chain groove 521c, the drag chain 523 is arranged in the drag chain groove 521c, and the slip ring assembly 522 is slidably connected with the slide rail. When sliding, it drives the drag chain 523 to move in the drag chain groove 521c.

[0039] It should be noted that the cables are neatly stored inside the drag chain 523. In the initial state, the drag chain 523 is bent and placed in the drag chain groove 521c, such as being bent in an "S" shape or a "C" shape. When the conveying device is started, the slip ring assembly 522 moves along the slide rail, driving the drag chain 523 to extend or contract synchronously. The drag chain groove 521c restricts the moving track of the drag chain 523. When extending, one end of the drag chain 523 close to the slip ring assembly 522 is gradually released, and the other end remains stable. When contracting, one end of the drag chain 523 close to the slip ring assembly 522 moves in the reverse direction, and the other end cooperates to store the redundant chain links.

[0040] Refer to Figure 3 , the slip ring assembly 522 includes a base 522a and a slip ring 522b. Pulley groups 522aa are symmetrically arranged on both opposite sides of the base 522a, and the pulley groups 522aa slide on the slide rail. The slip ring 522b is arranged on the base 522a, and the slip ring 522b is connected to the base 522a.

[0041] It should be noted that initially, the pulley groups 522aa are in a static state, and the base 522a remains relatively fixed with respect to the slide rail. When the conveying device 600 is started, the pulley groups 522aa on both sides of the base 522a reduce the resistance through rolling friction and slide synchronously along the slide rail to ensure the smooth movement of the base 522a, thereby driving the slip ring 522b to move. The slip ring 522b is connected to the base 522a, and the slip ring 522b can rotate and adjust according to external requirements during the sliding process to avoid the cables or air pipes from breaking due to torsion.

[0042] To further ensure the stable movement trajectory of the drag chain, positioning wheels 522ab are symmetrically arranged on opposite sides of the base 522a, and positioning wheel pressing plates 522ac are symmetrically arranged above and below the positioning wheels 522ab on the inner side of the base 522a.

[0043] It should be noted that the positioning wheels 522ab are installed on both sides of the base 522a to limit the movement trajectory of the drag chain 523. When the drag chain 523 slides in the drag chain groove 521c, the positioning wheels 522ab maintain the straight-line movement of the drag chain 523 through rolling friction, avoiding lateral deviation and preventing it from shifting or jittering during movement. The positioning wheel pressing plates 522ac enhance the pressing force of the positioning wheels 522ab on the drag chain 523 to prevent the drag chain 523 from bouncing during high-speed movement.

[0044] Through the coordinated action of the pulley set 522aa, the positioning wheels 522ab, and the positioning wheel pressing plates 522ac, the above base forms an efficient dynamic cooperation system with the drag chain 523 and the drag chain groove 521c, ensuring the stable transmission of energy supply in the production line, optimizing friction and vibration control, and extending the service life.

[0045] Specifically, the slip ring 522b is provided with a fixed part 522ba and a rotating part 522bb. The fixed part 522ba is connected to the base 522a through a flange, the rotating part 522bb is rotatably connected to the fixed part 522ba, and a driving ring handle 522bc is arranged between the rotating part 522bb and the fixed part 522ba. The driving ring handle 522bc is used to ensure the concentricity of the relative rotation between the rotating part 522bb and the fixed part 522ba.

[0046] It should be noted that the fixed part 522ba is fixed to the base 522a through a flange, the rotating part 522bb is in a static or initial position. The cables (gas, electricity, water) in the drag chain are connected to the fixed part 522ba, enter from the fixed part 522ba and exit from the rotating part 522bb, and then are transmitted to the moving frame 524 and connected to the mold-carrying device 700. When the conveying device 700 slides along the annular guide rail, the rotating part 522bb rotates synchronously with the movement of the moving frame 524, and the driving ring handle 522bc ensures the concentricity of the relative rotation between the rotating part 522bb and the fixed part 522ba, avoiding cable wear or breakage caused by eccentricity.

[0047] In the above fully automatic annular reflux production equipment for polyurethane product casting, multiple mold-carrying devices 700 and moving frames 524 are provided. The mold-carrying devices 700 and the moving frames 524 are arranged at intervals on the conveying device 600. That is, multiple mold-carrying components can be assembled on the production line, allowing multiple foaming molds to perform foaming operations simultaneously during the conveying process. At the same time, the moving frame and the mold-carrying device are arranged at intervals on the conveying device, facilitating the control of the access to the required energy according to production requirements and enhancing the flexibility of the system.

[0048] Refer to Figure 4 and Figure 5

[0049]

[0050]

[0051] Specifically, the conveying device 600 includes a conveying module 300 and an assembling module 400. The conveying module 300 includes a circulating chain 310, a driving sprocket 320, a driven sprocket 330, and a driving assembly 340. The circulating chain 310 is respectively connected to the driving sprocket 320 and the driven sprocket 330. The driving assembly 340 is connected to the driving sprocket 320, and the driving assembly 340 is used to drive the driving sprocket 320 to rotate, so that the circulating chain 310 performs a circular conveying operation. The assembling module 400 includes a fixed support plate 410, a swinging assembling component 420, and a fixed assembling component 430. The swinging assembling component 420 and the fixed assembling component 430 are arranged at intervals on the circulating chain 310. The fixed support plate 410 is provided with a fixed connecting portion 411 and a swinging connecting portion 412. The fixed connecting portion 411 is connected to the fixed assembling component 430, and the swinging assembling component 420 is rotatably connected to the swinging connecting portion 412.

[0051] It should be noted that, as described above, the swing fixing member 421 is disposed on the circulating chain 310. The swing block 422 has a certain swing amplitude in the horizontal direction through a double-hinged design. When the circulating chain 310 turns, the swing block 422 is affected by the centrifugal force, and the centrifugal force is directed outward. The second end of the swing block 422 inclines toward the outside of the circulating chain 310, driving the fixed support plate 410 to incline synchronously to counteract the centrifugal force. When the centrifugal force is directed inward, the second end of the swing block 422 inclines toward the inside of the circulating chain 310 to ensure that the fixed support plate 410 is parallel to the track. That is, the swing block 422 can adaptively swing according to the direction of the lateral force generated by the turn, thereby alleviating the direct impact of the centrifugal force on the fixed support plate 410 and avoiding the inclination or overturn of the fixed support plate 410 due to excessive centrifugal force.

[0052] Furthermore, the swing fixing member 421 includes a swing connecting screw (not marked in the figure) and a swing assembly convex block 421a. The swing assembly convex block 421a is disposed on the circulating chain 310. The swing connecting screw is connected to the swing assembly convex block 421a. The first end of the swing block 422 is hinged to the swing connecting screw. The swing connecting portion 412 includes a swing mounting piece 412a. The swing mounting piece 412a is disposed on one side of the fixed support plate 410. The second end of the swing block 422 is connected to the swing mounting piece 412a through a screw member (not marked in the figure).

[0053] It should be noted that, as Figure 5As shown, there are two swing assembly bumps 421a, which are symmetrically arranged up and down on the circulating chain 310. Swing connection screws are respectively connected to the two swing assembly bumps 421a. The first end of the swing block 422 is hinged to the swing connection screw. There are also two swing mounting pieces 412a, which are symmetrically arranged up and down on one side of the fixed support plate 410. The second end of the swing block 422 is respectively connected to the two swing mounting pieces 412a through screw connectors. In this way, the two swing assembly bumps 421a serve as the base of the swing system, providing vertical support. The swing connection screws are connected to the two swing assembly bumps 421a, and the swing block 422 is hinged to the swing connection screw. Thus, the swing block 422 can rotate around its hinge point to form a revolute pair. At the same time, the two swing assembly bumps 421a also limit the displacement of the swing block 422 in the vertical direction, ensuring that the swing block 422 always remains perpendicular to the swing connection screw during the swinging process. The swing mounting piece 412a is connected to the swing block through a screw connector, enabling a rotatable connection between the swing block 422 and the fixed support plate 410. That is, the swing block 422 forms a virtual hinge through a double-hinge design, converting the lateral movement of the fixed support plate 410 under centrifugal force into the rotational movement of the swing block 422. The first end of the swing block 422 rotates around the swing connection screw, and the second end of the swing block 422 drives the fixed support plate 410 to swing synchronously through the screw connector. Thus, the swing angle of the swing block 422 adaptively matches the turning radius and the magnitude of the lateral force. The lateral force is transmitted to the swing block 422 through the swing mounting piece 412a, and then dispersed to the swing assembly bump 421a and the circulating chain 310 through the swing connection screw, converting the lateral force into the tension of the circulating chain 310 to offset the tilting trend of the fixed support plate 410 and ensure that the support plate remains horizontal during turning.

[0054] The fixed assembly component 430 includes a fixed assembly bump 431, which is arranged on the circulating chain 310. The fixed connection part 411 is connected to the fixed assembly bump 431 through a bolt component. The fixed connection part 411 includes a fixed mounting piece 411a, which is arranged on one side of the fixed support plate 410, and the fixed mounting piece 411a is fixedly connected to the fixed assembly bump 431.

[0055] It should be noted that in this specific facility, there are also two fixed assembly bumps 431. The two fixed assembly bumps 431 are symmetrically arranged up and down on the circulating chain 310. The fixed assembly bumps 431 are connected to the fixed connection part 411 through bolt parts to form a rigid connection. When the fixed assembly component 430 turns, there will be no relative sliding between it and the circulating chain 310. That is to say, the fixed assembly component 430 can be firmly installed on the circulating chain 310, and the fixed mounting piece 411a is connected and fixed to the fixed assembly bump 431, thereby reducing the displacement of the fixed support plate 410 caused by the vibration or impact of the circulating chain 310, making the position of the fixed support plate 410 relative to the circulating chain 310 stable during the turning process and not slipping.

[0056] It can be understood that, as described above, the swing assembly component 420 adjusts the balance centrifugal moment through the swing of the swing block 422 to reduce the influence of the lateral force during the turning of the circulating chain 310 on the fixed support plate 410 and the carried object. The fixed assembly component 430 maintains the relative position of the fixed support plate 410 and the circulating chain 310 fixed through a rigid connection. Thus, the fixed assembly component 430 and the swing assembly component 420 jointly achieve the dynamic adaptation and stability balance between the fixed support plate 410 and the circulating chain 310, and the two cooperate to provide buffering for the fixed support plate 410 and its carried object when turning along with the circulating chain 310.

[0057] To better improve the flexibility and stability during turning, the fixed connection part 411 and the swing connection part 412 are located on the same side of the fixed support plate 410, and the length of the fixed connection part 411 is greater than that of the swing connection part 412. Through the design of the length difference between the fixed connection part 411 and the swing connection part 412, the overall center of gravity distribution of the fixed support plate 410 and its supported object is optimized to avoid rollover or slipping caused by the center of gravity offset during turning. The longer fixed connection part 411 can provide a greater leverage effect, which helps to resist the centrifugal force and keep the position of the fixed support plate 410 stable. The shorter swing connection part 412 makes it easier to adjust the connection angle along with the swing of the swing block 422, reducing the increase in the swing amplitude caused by the excessive length of the swing connection part 412. In addition, it improves the flexibility and stability during turning.

[0058] The fixed ear blocks 311 are arranged at intervals on the circulating chain 310, and the swing assembly bump 421a and the fixed assembly bump 411a are connected to the fixed ear blocks 311. In this solution, the swing assembly component 420 and the fixed assembly component 430 are respectively connected to the circulating chain 310 through the swing assembly bump 421a and the fixed assembly bump 411a, and the fixed ear blocks 311 are arranged at intervals on the circulating chain 310. In this way, the bearing capacity received by the fixed support plate 410 is transmitted to different fixed ear blocks 311 through the swing assembly component 420 and the fixed assembly component 430. The fixed ear blocks 311 disperse the received bearing capacity and transmit it to a larger area of the circulating chain, avoiding damage to the circulating chain caused by stress concentration.

[0059] Further, sliding members can be provided on one side of the circulating chain 310 and the bottom surface of the fixed support plate 410. During the annular transmission of the transmission device 600, the sliding members slide on the annular guide rail.

[0060] In this embodiment, a plurality of assembly modules 400 are provided, and each assembly module 400 is arranged in a ring along the transmission direction of the circulating chain 310. It can be understood that a mold-carrying device 700 is installed on the fixed support plate 410 of the assembly module 400. After loading the mold, the mold-carrying device 700 is transmitted together with the assembly module 400 by the transmission module 300.

[0061] Refer to Figure 6 、 Figure 7 , the mold-carrying device includes a fixing mechanism 100 and a pressing mechanism 200. The fixing mechanism 100 includes a fixing table 110, a pressing and fixing block 120, and a pressing driving module 130. A lower mold installation area is provided on the fixing table 110, an upper mold installation area is provided on the pressing and fixing block 120, and the pressing driving module 130 is connected to the pressing and fixing block 120. The pressing driving module 130 is used to drive the pressing and fixing block 120 to perform a mold-closing and locking operation in the direction of the lower mold installation area. The pressing mechanism 200 includes a jacking plate 210, an inflatable member 220, and a jacking driving member 230. The inflatable member 220 is arranged on the fixing table 110, and the inflatable member 220 is located below the jacking plate 210. The inflatable member 220 is connected to the jacking driving member 230. The jacking driving member 230 is used to drive the inflatable member 220 to perform a jacking and pressurizing operation in the direction of the jacking plate 210, and the jacking plate 210 is used to perform a pressing operation in the direction of the lower mold installation area.

[0062] It should be noted that in the initial state of the foaming mold fixing and locking device, the lower mold installation area on the fixing table 110 is in a vacant state for subsequent installation of the lower mold. The pressing drive module 130 is in the initial lifting position, and the upper mold installation area of the pressing fixing block 120 does not install the upper mold and maintains the maximum distance of the mold closing stroke from the lower mold installation area. The pressing drive module 130 is in an unpressurized state and does not apply a force to the pressing fixing block 120. The inflating member 220 is in an uninflated state, and the jacking drive member 230 is in an unjacked state.

[0063] Furthermore, the pressing drive module 130 is connected to a drive such as a hydraulic cylinder or a pneumatic cylinder, and energy is supplied to the drive through the cable on the moving frame 524 to achieve the automation of driving the pressing fixing block 120 to perform the mold closing and locking operation in the direction of the lower mold installation area.

[0064] During use, install the lower mold in the lower mold installation area of the fixing table 110 and ensure accurate positioning. Subsequently, install the upper mold in the upper mold installation area of the pressing fixing block 120 and check the alignment accuracy of the upper and lower molds. Then, an external drive pushes the pressing drive module 130 at a set pressure and closing speed to drive the upper mold installed on the pressing fixing block 120 to move towards the lower mold installed in the lower mold installation area until the mold closing surfaces are completely fitted. During the mold closing process, multi-stage pressure control can be set to pressurize the pressing fixing block 120. Initially, it is slowly closed in the low-pressure stage to avoid strong collisions caused by rapid mold closing. When the molds come into contact, it is then switched to the preset high-pressure stage. The pressing drive module 130 continues to apply a force to the pressing fixing block 120 to make the mold closing surfaces completely fitted, and the mold closing force between the upper and lower molds becomes larger and larger. When the mold closing force between the upper and lower molds reaches the preset threshold, the pressing drive module 130 is locked with the fixing table 110 to ensure tightness. Thus, the mold closing and locking operation is completed. Furthermore, a pressure sensor can be used to monitor the mold closing force during the foaming process in real time. If the detected mold closing force drops, the pressure is automatically compensated to the set value.

[0065] When foaming is carried out in the mold clamping and locking state, the foaming material is restricted in the closed space of the mold. When the foaming agent releases gas, the gas cannot escape freely, resulting in a rapid increase in the pressure inside the bubbles, exerting a huge force on the mold wall. As a result, gaps are likely to appear at the mold clamping surface, especially at the edges, causing the foaming material to overflow and affecting the quality of the product obtained after foaming is completed. The tightening mechanism 200 provided in this device forms a dynamic sealing system during the foaming process through the coordinated action of the jacking plate 210, the inflatable member 220, and the jacking driving member 230. When the internal expansion force in the mold increases during foaming, and the mold continues to be subjected to the pressure exerted by the pressing drive module 130, the force exerted by the internal expansion force on the mold wall is transmitted towards the lower mold installation area and the edge of the mold clamping surface. The jacking plate 210 and the inflatable member 220 provided below the jacking plate 210 are squeezed. The jacking driving member 230 supports the inflatable member 220 and communicates with the inflatable member to inflate it, causing the inflatable member 220 to jack and pressurize towards the jacking plate 210. The jacking plate 210 then tightens towards the lower mold installation area, ensuring that the mold clamping surface remains sealed during foaming. After foaming is completed, the inflatable member 220 is depressurized, and the jacking plate 210 returns to its initial position. The pressing drive module 130 and the fixed table 110 are unlocked for the smooth separation of the mold. The jacking plate 210 also serves as a component directly contacting the mold. The inflatable member 220 expands under the drive of the jacking driving member 230, pushing the jacking plate 210 to closely adhere to the surface of the lower mold and tighten the mold during foaming, preventing gaps from occurring at the mold clamping surface and the foaming material from overflowing.

[0066] Refer to Figure 6 , the pressing drive module 130 includes a support frame 131, an opening and closing frame 132, and a locking frame 133. The support frame 131 is connected to the fixed table 110. One end of the opening and closing frame 132 is hinged to the support frame 131, and the other end of the opening and closing frame 132 is hinged to the locking frame 133. The pressing fixed block 120 is arranged on the opening and closing frame 132, and the pressing fixed block 120 is located between the support frame 131 and the locking frame 133. When the opening and closing frame 132 rotates relative to the support frame 131, it is used to drive the pressing fixed block 120 to move closer to or away from the lower mold installation area. When the locking frame 133 rotates relative to the opening and closing frame 132, it is used to lock or unlock with the fixed table 110.

[0067] It can be understood that the opening and closing frame 132 and the locking frame 133 are respectively connected with external drives. The opening and closing frame 132 rotates relative to the support frame 131 under the external drive. During the mold closing and locking operation, the opening and closing frame 132 drives the pressing and fixing block 120 and the upper mold mounted thereon to approach the lower mold installation area. The locking frame 133 rotates relative to the opening and closing frame 132 in a direction away from the fixed table 110 to avoid collision with the fixed table 110. In this way, until the upper mold fits with the lower mold mounted on the lower mold installation area and the mold closing force reaches the set threshold, the locking frame 133 rotates in a direction close to the fixed table 110 and locks with the fixed table 110. After foaming is completed, the locking frame 133 rotates relative to the opening and closing frame 132 to unlock from the fixed table 110, and the opening and closing frame 132 drives the pressing and fixing block 120 and the upper mold mounted thereon to move away from the lower mold installation area, and the molds are separated.

[0068] It should be noted that the locking frame 133 and the fixed table 110 can be locked by means of mechanical buckles, hydraulic self-locking or magnetic adsorption to maintain the mold closing state.

[0069] To better maintain the mold closing and locking state, ensure the molding quality and safety, two locking frames 133 are provided, and the two locking frames 133 are arranged in parallel. The two locking frames 133 arranged in parallel can share the load, and the force borne by each is reduced, avoiding deformation caused by single-point stress, the structure is more stable, and the stability of mold closing and locking is increased. When the mold is large, the parallel design may make the operation more convenient. For example, locking from both sides at the same time, the two locking frames can cover a wider area and reduce the risk of warping or misalignment. In addition, when one locking frame 133 has a problem, the other can still function, improving the reliability.

[0070] Furthermore, two pressing and fixing blocks 120 are provided. The two pressing and fixing blocks 120 are spaced apart on the opening and closing frame 132. In this specific implementation, the pressing and fixing block 120 fixes the upper mold on the one hand, and on the other hand, when performing the mold closing and locking operation, it applies pressure to the closed mold along with the pressurization of the pressing drive module 130. Two pressing and fixing blocks 120 are arranged at different positions on the opening and closing frame 132. When the opening and closing frame 132 closes towards the lower mold installation area, the two pressing and fixing blocks 120 press different positions of the mold, apply force to multiple points of the mold, and increase the contact area between the mold and the pressing block, thereby improving the overall stability of the device, reducing vibration or displacement. During the foaming molding process, the mold generates internal stress due to the expansion pressure of the foaming material. The two pressing and fixing blocks 120 can balance these stresses and reduce the risk of mold warping.

[0071] To adapt to different-sized molds, adjustment slots 132a are provided on the opening and closing frame 132. The two pressing and fixing blocks 120 are connected to the adjustment slots 132a through bolt fasteners. In this way, according to molds of different sizes, the positions of the two pressing and fixing blocks 120 are adjusted for mold alignment and installation. At the same time, it can also better balance the internal stress of different molds and improve the flexibility of the device application.

[0072] Referring to Figure 7 , the jacking driving member 230 includes an inflatable support plate 231. The inflatable support plate 231 is arranged on the fixed table 110. The inflatable support plate 231 is located below the inflatable member 220. An inflatable channel 231a is provided on the inflatable support plate 231, and the inflatable channel 231a communicates with the inflatable member 220.

[0073] It should be noted that during the foaming process, when the internal expansion force of the mold increases, the expansion force exerts a force on the inner wall of the mold. The jacking plate 210 and the inflatable member 220 arranged below the jacking plate 210 are squeezed. The jacking driving member 230 inflates the inflatable member 220 through the inflatable channel 231a of the inflatable support plate 231 according to the pressure received by the inflatable member 220. Due to the support of the inflatable support plate 231, the inflatable member 220 is kept jacked and pressurized in the direction of the jacking plate 210. That is, it has a guiding effect on the deformation of the inflatable member 220, keeping the inflatable member 220 expanding in the direction of the jacking plate 210. The jacking plate 210 is then tightened in the direction of the lower mold installation area, so that the mold clamping surface remains sealed during the foaming process.

[0074] In this specific implementation, the outer dimension of the inflatable support plate 231 is smaller than the outer dimension of the inflatable member 220. A number of concave notches 231b are provided on both opposite sides of the inflatable support plate 231. Referring to Figure 1 、 Figure 3 , the outer dimension of the support plate is smaller than the outer dimension of the inflatable member 220. There are support spaces left at both ends of the inflatable member 220, so that the inflatable member 220 has greater freedom when expanding. When the inflatable member 220 expands, the area not covered by the inflatable support plate 231 can have a larger deformation space. The inflatable support plate 231 only restricts the deformation of a part of the inflatable member 220. The area of the inflatable member 220 not supported is not restricted by the inflatable support plate 231, reducing the restriction on the overall deformation of the inflatable member 220 and avoiding stress concentration or rupture of the inflatable member 220 caused by excessive restraint. A number of concave notches 231b are provided on both opposite sides of the inflatable support plate 231. Thus, when the inflatable member 220 expands and deforms, while being supported and restricted on both opposite sides of the inflatable support plate 231, a buffer structure can also be formed at the concave notches 231b, enabling the inflatable member 220 to expand upward and uniformly as a whole, avoiding shape deviation caused by instantaneous disorderly expansion, making the deformation more controllable. In this way, after the inflatable member 220 deforms, it exerts a more uniform pressure on the jacking plate 210 for jacking.

[0075] Further, two inflatable members 220 are provided. The two inflatable members 220 are arranged below the opposite sides of the jacking plate 210. Uniform jacking forces are applied to the jacking plate 210 from both sides through the two inflatable members 220, so as to avoid the inclination of the jacking plate 210 caused by unilateral force, make the jacking of the mold more stable, make the pressure distribution on the contact surface between the jacking plate 210 and the mold more uniform, and avoid excessive local pressure from affecting the effective sealing of the mold clamping surface.

[0076] The above embodiments only represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it cannot be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent shall be subject to the appended claims.

Claims

1. An automatic ring-shaped reflux production device for casting polyurethane products, characterized in that, Comprising: A traveling assistance device, the traveling assistance device includes a conveying area and a wiring mechanism, the wiring mechanism includes a cable rack, a slip ring assembly, a drag chain and a moving frame, the cable rack is arranged in the conveying area, the slip ring assembly and the drag chain are arranged on the cable rack, the slip ring assembly is slidably connected with the cable rack, the slip ring assembly is connected with the drag chain, the outgoing line of the slip ring assembly extends and is fixed on the moving frame, and the movement of the moving frame drives the slip ring assembly and the drag chain to move forward or backward on the cable rack; A conveying device, arranged in the conveying area, the conveying device makes a circular conveying movement in the conveying area, and the moving frame is fixedly connected to the conveying device; A mold loading device, arranged on the conveying device, for loading a foaming mold, and the mold loading device is connected with the cable fixed on the moving frame.

2. The fully automatic annular reflux production equipment for pouring polyurethane products according to claim 1, characterized in that, The traveling assistance device further includes an annular backing plate and an annular guide rail, the annular backing plate encloses the outside of the conveying area, the annular guide rail is laid on the annular backing plate, and the conveying device is slidably connected with the annular guide rail.

3. The full-automatic annular reflux production equipment for polyurethane product casting according to claim 2, characterized in that The annular backing plate is enclosed by arc portions at both ends and straight portions on both sides, and both ends of the straight portions are respectively connected to the arc portions.

4. The fully automatic annular reflux production equipment for pouring polyurethane products according to claim 3, wherein, The straight portion is composed of a plurality of sequentially connected straight backing plates.

5. The full-automatic annular reflux production equipment for polyurethane product pouring according to claim 1, characterized in that, There are two annular guide rails, one annular guide rail is laid along the traveling track of the conveying device, and the other annular guide rail is laid along the traveling track of the mold loading device.

6. The full-automatic annular reflux production equipment for polyurethane product casting according to claim 1, characterized in that, The cable rack includes a rack body, a drag chain support and a drag chain groove, the drag chain supports are arranged on the rack body at intervals, the drag chain groove is installed on the drag chain support, a slide rail is arranged on the drag chain groove, the drag chain is arranged in the drag chain groove, and the slip ring assembly is slidably connected with the slide rail. When sliding, the drag chain is driven to move in the drag chain groove.

7. An automatic annular reflux production device for pouring polyurethane products according to claim 1, characterized in that, The slip ring assembly includes a base and a slip ring, pulley groups are symmetrically arranged on opposite sides of the base, the pulley groups slide on the slide rail, and the slip ring is connected with the base.

8. An automatic annular reflux production device for polyurethane product casting according to claim 7, characterized in that Positioning wheels are also symmetrically arranged on opposite sides of the base, and positioning wheel pressing pieces are symmetrically arranged above and below the positioning wheels on the inner side of the base.

9. An automatic ring-shaped reflux production device for polyurethane product casting according to claim 8, characterized in that, The slip ring includes a fixed part and a rotating part, the fixed part is connected with the base through a flange, the rotating part is rotatably connected with the fixed part, and a driving ring handle is arranged between the rotating part and the fixed part, and the driving ring handle is used to ensure the concentricity of the relative rotation of the rotating part and the fixed part.

10. The fully automatic annular reflux production equipment for polyurethane product casting according to claim 1, characterized in that, A plurality of the mold loading devices and the moving frames are provided, and the mold loading devices and the moving frames are arranged on the conveying device at intervals.

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