Floor safety door structure of die casting machine and die casting equipment

Abstract

The application belongs to the technical field of casting equipment, and provides a floor safety door structure of a die casting machine, which comprises a fixed door, a guide rail assembly and a movable door. An extension arm extending outward is arranged on one side of the fixed door. The guide rail assembly is arranged on the body and the extension arm of the fixed door. The guide rail assembly comprises a driving assembly and a double-layer guide rail arranged horizontally. The driving assembly is arranged between the double-layer guide rail. A connecting arm matched with the extension arm in position is arranged on one side of the movable door. A connecting part and a pulley block arranged on the double-layer guide rail are arranged on the connecting arm. The connecting part is connected with the driving assembly. The driving assembly is used to drive the connecting arm to move on the double-layer guide rail, so as to drive the movable door to unfold or overlap on the fixed door. The application also provides a die casting equipment with the floor safety door structure. The application aims to solve the technical problem that the floor safety door structure of the existing die casting machine is easy to cause the movable door to droop and is easy to cause damage to the guide rail assembly.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of casting equipment, and particularly relates to a floor safety door structure of a die casting machine and a die casting equipment. BACKGROUND

[0002] A common safety door of a die casting machine is a floor door structure arranged on both sides of a die casting machine body to shield and protect. The safety door generally comprises a fixed door and a movable door, and a guide rail assembly is arranged on the fixed door and the movable door to cooperate with each other, so that the movable door can translate on the fixed door, thereby realizing the opening and closing actions.

[0003] On the floor safety door of the prior art die casting machine, the guide rail assembly is a movable mechanism that cooperates with each other and has a certain volume. In order to avoid interference with the die casting machine body and structures or workpieces thereon, the guide rail assembly is generally arranged on the top of the safety door, thereby ensuring the normal operation of the die casting machine. However, in actual application, when the movable door is fully unfolded (i.e. in a state of shielding the die casting machine body), the distal end of the movable door lacks support, thereby increasing the lever stress borne by the proximal end of the movable door and the connecting part of the fixed door, and after long-time use in this way, the movable door is prone to sagging, and even the guide rail assembly is damaged. SUMMARY

[0004] The purpose of the embodiments of the application is to provide a floor safety door structure of a die casting machine and a die casting equipment, so as to solve the technical problem that the floor safety door structure of the prior art die casting machine is prone to causing the movable door to sag and is prone to damaging the guide rail assembly.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the application is as follows:

[0006] In a first aspect, the embodiments of the application provide a floor safety door structure of a die casting machine, comprising:

[0007] A fixed door, one side of the fixed door being provided with an extension arm extending outward;

[0008] A guide rail assembly arranged on the body of the fixed door and the extension arm, the guide rail assembly comprising a driving assembly and a double-layer guide rail arranged transversely, the driving assembly being arranged between the double-layer guide rail;

[0009] A movable door, one side of the movable door being provided with a connecting arm matched in position with the extension arm, the connecting arm being provided with a connecting part and a pulley block arranged on the double-layer guide rail, the connecting part being mounted and connected with the driving assembly; the driving assembly is used to drive the connecting arm to move on the double-layer guide rail, thereby driving the movable door to unfold or overlap on the fixed door.

[0010] The press casting machine floor safety door structure provided by the application has the beneficial effects that: compared with the prior art, the press casting machine floor safety door structure improves the structure on the fixed door and the movable door, an extension arm extending outward is additionally arranged on one side of the fixed door, and a connecting arm is arranged on the same side of the movable door. The guide rail assembly on the fixed door comprises a double-layer guide rail and a driving assembly, and the double-layer guide rail is laid on the body of the fixed door and the extension arm. The connecting arm on the movable door is installed on the guide rail assembly through a connecting part and a pulley set. When the driving assembly is started, the movable door can be driven to move on the fixed door to realize the opening and closing door action.

[0011] Therefore, due to the cooperation of the double-layer guide rail and the pulley set, the movable connection part between the connecting arm and the guide rail assembly is increased, the moving stability of the connecting arm on the double-layer guide rail is effectively improved, the upper and lower widths of the guide rail assembly are increased, the support area is increased, and the support effect on the movable door is improved. In addition, the extension arm on the fixed door and the connecting arm on the movable door are positionally matched, when the movable door is completely unfolded on the fixed door, the connecting arm is on the fixed door, the connecting area and the counterweight between the proximal end of the movable door and the fixed door are increased by the connecting arm, the support strength on the movable door is effectively improved, the lever stress borne by the proximal end of the movable door due to the lack of support on the distal end of the movable door is offset, the drooping condition of the movable door is eliminated, the guide rail assembly is prevented from being damaged, and the service life is prolonged.

[0012] The setting position of the guide rail assembly is improved, and in the height direction of the fixed door, the guide rail assembly is arranged in the middle region of the fixed door. Therefore, the setting position of the guide rail assembly is adjusted, which is beneficial to adapt to the use requirements of the floor safety door of different specifications.

[0013] The structure of the double-layer guide rail is improved, the double-layer guide rail comprises upper and lower guide rails extending in parallel, the pulley set comprises upper and lower rollers, the upper roller is installed on the upper guide rail, and the lower roller is installed on the lower guide rail; the upper roller and the lower roller are arranged in an upper and lower alignment or an upper and lower misalignment on the connecting arm. Therefore, the upper and lower two groups of movable connection structures are formed between the connecting arm and the guide rail assembly, which can improve the moving stability of the connecting arm on the guide rail assembly and form two groups of stress support points to bear the lever force when the movable door is unfolded, thereby improving the support effect.

[0014] The structure of the driving assembly is improved, the driving assembly comprises a transmission belt and a driving motor, the driving motor is used to drive the transmission belt to operate in forward and reverse directions, the connecting part is a clamping device arranged on the connecting arm, and the connecting arm is connected to the transmission belt through the connecting part. Therefore, the driving assembly drives the transmission belt to operate by the driving motor, thereby driving the movable door to move back and forth on the fixed door to realize the opening and closing door action.

[0015] In one embodiment, the transmission belt is a metal chain. The structural strength and wear resistance of the metal chain allow the transmission belt to maintain a stable working state and effectively prolong the service life of the transmission belt.

[0016] The structure of the movable door is improved, the upper end and the lower end of the movable door are respectively provided with guide grooves, and the fixed door is provided with guide wheels for being respectively installed in the guide grooves. In this way, the guide wheels not only play a guiding role, but also increase the connection positions of the upper end and the lower end of the movable door with the fixed door, which is beneficial to improve the supporting effect.

[0017] The cooperation structure between the fixed door and the movable door is improved, and the floor safety door structure further includes a first sensing assembly for detecting that the movable door is unfolded to a position and a second sensing assembly for detecting that the movable door is reset to a position. The first sensing assembly includes a sensor and a trigger protrusion for mutual touch cooperation. The sensor is arranged on the side of the fixed door away from the extension arm. The trigger protrusion is arranged on the side of the movable door with the connecting arm. The second sensing assembly includes a micro switch and a trigger piece. A bracket is arranged on the side of the fixed door with the extension arm. The micro switch is arranged on the bracket, and a sensing head on the micro switch extends outward. The trigger piece is arranged on the side of the movable door with the connecting arm and is in touch cooperation with the sensing head of the micro switch. In this way, the first sensing assembly and the second sensing assembly are used to detect that the movable door is unfolded to a position or reset to a position, so that the driving assembly can be timely controlled to start and stop, and the movement stroke of the movable door on the fixed door is effectively limited.

[0018] In one embodiment, the connecting arm is further provided with a detachable mounting plate. The mounting plate has a plurality of mounting grooves extending along the length direction of the mounting plate. The trigger piece is selectively arranged on the mounting grooves of the mounting plate, so as to improve the installation flexibility of the trigger piece.

[0019] In one embodiment, the connecting arm of the movable door is further provided with a buffer piece, and the two sides of the fixed door are respectively provided with anti-collision pieces in touch cooperation with the buffer piece. This is beneficial to eliminate the inertial force when the movable door is unfolded or reset, and effectively improve the protection effect of the safety door.

[0020] In the second aspect, the embodiments of the present application also provide a die casting equipment, which includes a die casting machine body. The two sides of the die casting machine body are respectively provided with floor safety door structures of the die casting machine. The floor safety door structures on the two sides are oppositely arranged. A connecting plate is further connected between the floor safety door structures on the two sides, which is beneficial to improve the overall stability of the floor safety doors on the two sides. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0022] Figure 1 The deployment state structure diagram of the floor safety structure provided by the embodiment of the present application;

[0023] Figure 2 The reset state structure diagram of the floor safety structure provided by the embodiment of the present application;

[0024] Figure 3 The perspective structure diagram of the fixed door provided by the embodiment of the present application;

[0025] Figure 4 The perspective structure diagram of the movable door provided by the embodiment of the present application;

[0026] Figure 5 The one setting position view of the guide rail assembly on the fixed door provided by the embodiment of the present application;

[0027] Figure 6 The another setting position view of the guide rail assembly on the fixed door provided by the embodiment of the present application;

[0028] Figure 7 The front view of the fixed door provided by the embodiment of the present application;

[0029] Figure 8 The front view of the movable door provided by the embodiment of the present application;

[0030] Figure 9 The one setting form view of the double-layer guide rail on the fixed door provided by the embodiment of the present application;

[0031] Figure 10 The another setting form view of the double-layer guide rail on the fixed door provided by the embodiment of the present application;

[0032] Figure 11 The partial structure diagram of the connecting arm on the movable door provided by the embodiment of the present application;

[0033] Figure 12 The side view structure diagram of the movable door provided by the embodiment of the present application;

[0034] Figure 13 The partial structure diagram of one side of the fixed door provided by the embodiment of the present application;

[0035] Figure 14A perspective structural schematic view of a second sensing assembly provided for an embodiment of the present application;

[0036] Figure 15 An expanded state structural view of a floor safety door on a die casting equipment provided for an embodiment of the present application;

[0037] Figure 16 A reset state structural view of a floor safety door on a die casting equipment provided for an embodiment of the present application.

[0038] In the drawings, various reference numbers refer to:

[0039] 100 - guide rail assembly;

[0040] 200 - die casting machine body;

[0041] 300 - floor safety door structure;

[0042] 1 - fixed door; 11 - extension arm; 12 - guide wheel; 13 - connecting lug; 14 - support; 15 - anti-collision piece;

[0043] 2 - moving door; 21 - connecting arm; 211 - connecting rib; 212 - fixed plate; 22 - connecting part; 221 - clamping part; 23 - pulley set; 231 - upper roller; 232 - lower roller; 24 - guide slot; 241 - surrounding frame; 25 - mounting plate; 251 - mounting slot; 26 - buffer piece;

[0044] 3 - drive assembly; 31 - transmission belt; 32 - drive motor;

[0045] 4 - double-layer guide rail; 41 - upper guide rail; 42 - lower guide rail;

[0046] 5 - first sensing assembly; 51 - sensor; 52 - trigger protrusion;

[0047] 6 - second sensing assembly; 61 - micro switch; 611 - sensing head; 62 - trigger piece;

[0048] 7 - connecting plate;

[0049] 8 - protection box. DETAILED DESCRIPTION

[0050] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0051] It is to be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

[0052] It is to be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate directions or positions based on the directions or positions shown in the drawings, and are used for convenience of description and simplification of description only, and do not indicate or imply that the referred device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the application.

[0053] In addition, the terms "first", "second", are used only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0054] The landing safety door on the conventional die casting equipment is generally composed of a movable door and a fixed door. The movable door is arranged on the fixed door through a guide rail assembly, so that the movable door can move on the fixed door, thereby realizing the opening and closing actions. In the structure of the landing safety door, in order to avoid interference with the die casting machine body and structures or workpieces thereon, the guide rail assembly is generally arranged at the top of the safety door, thereby ensuring the normal operation of the die casting machine.

[0055] However, in actual application, when the movable door is fully unfolded (i.e. when the die casting machine body is shielded), the distal end of the movable door lacks support, thereby causing the lever stress borne by the connection part between the proximal end of the movable door and the fixed door to increase. After long-time use in this way, the movable door is prone to sagging, and even the guide rail assembly can be damaged and cannot be used.

[0056] Therefore, the embodiments of the present application provide a novel die casting machine landing safety door structure and a die casting equipment with the landing safety door structure. The guide rail structure between the fixed door and the movable door is redesigned, the structural strength of the guide rail assembly is strengthened, and the support strength of the connection part between the proximal end of the movable door and the fixed door is improved. The unfolded state of the movable door can be kept flat, the stability of the movable door is improved, and the technical problem that the landing safety door structure on the conventional die casting machine is prone to cause the movable door to sag and damage the guide rail assembly is effectively solved. The present application will be described in detail.

[0057] Please refer toFigure 1 and Figure 2 The floor safety door structure of the die-casting machine includes a fixed door 1, a movable door 2, and a guide rail assembly 100.

[0058] An outwardly extending arm 11 is provided on one side (left or right) of the fixed door 1. In this embodiment, as... Figure 3 As shown, the extension arm 11 can preferably be a frame extending outward from the side of the fixed door 1; in other embodiments, the extension arm 11 can also be a plate extending outward from the side of the fixed door 1.

[0059] The guide rail assembly 100 is installed on the body of the fixed door 1 and the extension arm 11. It can be understood that the guide rail assembly 100 is laid on the body of the fixed door 1, and part of it is on the extension arm 11.

[0060] The guide rail assembly 100 includes a drive assembly 3 and a horizontally arranged double-layer guide rail 4. The double-layer guide rail 4 is preferably composed of two parallel extending guide rails. A portion of the double-layer guide rail 4 is located on the body of the fixed door 1, and the other portion is located on the extension arm 11.

[0061] The drive assembly 3 is used to drive the sliding door 2 to move and realize the opening and closing action. The drive assembly 3 is set between the two guide rails of the double-layer guide rail 4.

[0062] like Figure 4 As shown, a connecting arm 21 that cooperates with the position of the extension arm 11 is provided on one side of the sliding door 2. The specific shape of the connecting arm 21 can also preferably be a frame or plate structure.

[0063] The connecting arm 21 is provided with a connecting part 22 and a pulley assembly 23. The connecting part 22 is used to install and connect with the drive assembly 3, allowing the sliding door 2 to be connected to and driven by the drive assembly 3 through the connecting arm 21. The pulley assembly 23 is used to be installed on the double-layer guide rail 4, with each set of pulleys installed on the double-layer guide rail 4. Here, the pulley assembly 23 can be understood as consisting of at least two sets of pulleys arranged vertically.

[0064] The drive assembly 3 is used to drive the connecting arm 21 to move on the double-layer guide rail 4, thereby enabling the movable door 2 to unfold or overlap on the fixed door 1, thus realizing the opening and closing action.

[0065] Compared with the prior art, the structure of the safety door of the die casting machine provided by the embodiments of the present application improves the structure on the fixed door 1 and the movable door 2, and an extension arm 11 extending outward is additionally arranged on one side of the fixed door 1, and a connecting arm 21 is also arranged on the same side of the movable door 2 in cooperation. The guide rail assembly 100 on the fixed door 1 comprises a double-layer guide rail 4 and a driving assembly 3, and the double-layer guide rail 4 is arranged on the body of the fixed door 1 and the extension arm 11. When the driving assembly 3 is started, the movable door 2 can be driven to move on the fixed door 1 to realize the opening and closing actions.

[0066] On the one hand, due to the cooperation of the double-layer guide rail 4 and the pulley set 23, the movable connection part between the connecting arm 21 and the guide rail assembly 100 is increased, the moving stability of the connecting arm 21 on the double-layer guide rail 4 is effectively improved, and the upper and lower widths of the guide rail assembly 100 are increased, which is beneficial to increasing the support area and further improving the support effect on the movable door 2.

[0067] On the other hand, the extension arm 11 on the fixed door 1 is positionally matched with the connecting arm 21 on the movable door 2, when the movable door 2 is completely unfolded on the fixed door 1, the connecting arm 21 is arranged on the fixed door 1, the connecting area and the counterweight between the proximal end of the movable door 2 and the fixed door 1 are increased by the connecting arm 21, the support strength on the movable door 2 is effectively improved, the lever stress borne by the proximal end of the movable door 2 due to the lack of support on the distal end of the movable door 2 is offset, the drooping condition of the movable door 2 is eliminated, the guide rail assembly 100 is prevented from being damaged, and the service life is prolonged.

[0068] In actual application, different sizes of the floor door body need to be used on die casting machines of different specifications, so that the lever stress borne by the connecting part between the proximal end of the movable door 2 and the fixed door 1 is different for the unfolded movable door 2. Therefore, the structure on the safety door needs to be adjusted according to different specifications of the compressor.

[0069] In one embodiment of the present application, the setting position of the guide rail assembly 100 on the fixed door 1 can be adjusted, please refer to Figure 5 and Figure 6 In the height direction of the fixed door 1, the guide rail assembly 100 can be preferably arranged in the middle area M of the fixed door 1.

[0070] Specifically, the door body of different specifications can also be appropriately fine-tuned. Figure 5 As shown in the figure, the guide rail assembly 100 is arranged in the middle of the fixed door 1, so that the stress on the plate surface of the fixed door 1 is balanced up and down.

[0071] As shown in the figure, the guide rail assembly 100 is arranged in the middle of the fixed door 1, so that the stress on the plate surface of the fixed door 1 is balanced up and down. Figure 6As shown, the guide rail assembly 100 is slightly offset from the upper end of the fixed door 1, so that the guide rail assembly 100 is located on the middle-upper part of the fixed door 1.

[0072] In this way, by adjusting the setting position of the guide rail assembly 100, it is beneficial to adapt to the use requirements on the safety door of different specifications.

[0073] In another embodiment of the present application, the double-layer guide rail 4 structure of the guide rail assembly 100 can also be adjusted. Please refer to Figure 7 and Figure 8 , the double-layer guide rail 4 includes an upper guide rail 41 and a lower guide rail 42 extending in parallel, and the pulley block 23 on the connecting arm 21 includes an upper roller 231 and a lower roller 232, the upper roller 231 is installed on the upper guide rail 41, and the lower roller 232 is installed on the lower guide rail 42.

[0074] In this way, the upper and lower two sets of movable connection structures are formed between the connecting arm 21 and the guide rail assembly 100, which can not only improve the movement stability of the connecting arm 21 on the guide rail assembly 100, but also form two sets of stress support points to simultaneously bear the lever force when the moving door 2 is unfolded, thereby improving the support effect.

[0075] In actual application, since the moving door 2 is a welded part, there will be errors during welding and processing, which can easily affect the smoothness of the moving door 2 on the fixed door 1.

[0076] Therefore, in the embodiment, as shown in Figure 8 , the upper roller 231 can preferably adopt a centering wheel, and the lower roller 232 can preferably adopt a flat heart wheel. In this way, it is beneficial to eliminate the errors of welding and processing, so that the moving door 2 can move smoothly on the fixed door 1, and the jamming is eliminated.

[0077] In addition, in the embodiment, the upper roller 231 and the lower roller 232 are preferably arranged in an upper and lower alignment on the connecting arm 21; in other embodiments, the upper roller 231 and the lower roller 232 can also be arranged in an upper and lower misalignment on the connecting arm 21, which can be set according to the available area on the connecting arm 21. In this way, it is beneficial to improve the connection balance between the connecting arm 21 and the guide rail assembly 100, and to unify the stress of the upper and lower two sets of support points.

[0078] Preferably, please refer to Figure 9 and Figure 10 , the distance L between the upper guide rail 41 and the lower guide rail 42 can also be adjusted. Correspondingly, the upper and lower widths of the connecting arm 21 on the moving door 2 are also adaptively adjusted.

[0079] As shown in Figure 9 , the distance between the upper guide rail 41 and the lower guide rail 42 of the double-layer guide rail 4 is set to be relatively wide, so that the support area of the entire guide rail assembly 100 is increased.

[0080] As shown in Figure 10 , the spacing between the upper rail 41 and the lower rail 42 of the double-layer rail 4 is set to be narrow, so that the support area of the entire rail assembly 100 is reduced.

[0081] In this way, the spacing between the upper rail 41 and the lower rail 42 is adjusted, so as to change the support area of the entire rail assembly 100, which is beneficial to adapt to the use requirements of different specifications of floor safety doors.

[0082] It should be noted that the above-mentioned position adjustment embodiment of the rail assembly 100 and the embodiment of adjusting the spacing between the double-layer rails 4 can be used or combined according to actual use, so as to meet the use requirements of the floor safety door matched on the die casting machine of different specifications.

[0083] For the specific structure of the driving assembly 3 arranged between the double-layer rails 4, in an embodiment of the present application, please refer to Figure 7 and Figure 8 , the driving assembly 3 includes a transmission belt 31 and a driving motor 32, and the driving motor 32 is used to drive the transmission belt 31 to run forward or reversely, so as to drive the moving door 2 to move back and forth on the fixed door 1.

[0084] The connecting portion 22 on the connecting arm 21 can be preferably a clamping device, and the connecting arm 21 is connected to the transmission belt 31 through the connecting portion 22.

[0085] In the embodiment, as shown in Figure 11 , the connecting arm 21 is preferably a frame structure, and the frame opening of the frame is provided with triangular connecting ribs 211, which is beneficial to reduce the weight of the connecting arm 21 and ensure the balance of the two sides of the moving door 2. Among them, the two adjacent connecting ribs 211 are connected with a fixed plate 212, and the connecting portion 22 on the connecting arm 21 is preferably a clamping device arranged on the fixed plate 212, and the clamping device has a clamping portion 221 and is fixed to at least part of the transmission belt 31 through the clamping portion 221. When the driving motor 32 drives the transmission belt 31 to run, the position of the connecting portion 22 can be changed, so as to drive the moving door 2.

[0086] In this way, the driving assembly 3 drives the transmission belt 31 to run through the driving motor 32, so as to drive the moving door 2 to move back and forth on the fixed door 1, and realize the opening and closing action.

[0087] In actual application, the transmission belt 31 generally adopts a belt. However, after the safety door operates for a period of time, the belt is easy to be worn and loose. In this case, the driving motor 32 is difficult to drive the moving door 2 to move through the loose belt, which leads to the failure of the operation of the safety door.

[0088] In one embodiment of the present application, the transmission belt 31 can be preferably a metal chain. Since the die casting machine works in a high temperature environment, the metal chain can be preferably made of a high temperature resistant metal material.

[0089] In this way, the metal chain has structural strength and wear resistance, so that the transmission belt 31 can maintain a stable working state, effectively prolonging the service life of the transmission belt 31.

[0090] For the structure on the moving door 2, in one embodiment of the present application, please refer to Figure 12 and Figure 13 , the upper end and the lower end of the moving door 2 are respectively provided with guide grooves 24, and the fixed door 1 is provided with guide wheels 12 for being respectively installed on the guide grooves 24.

[0091] In this embodiment, as shown in Figure 12 , the upper end and the lower end of the moving door 2 respectively have guide grooves 24 composed of surrounding frames 241, which are arranged along the length direction of the moving door 2. Correspondingly, as shown in Figure 13 , the fixed door 1 is provided with a positionally matched connecting lug 13, and the connecting lug 13 is provided with a guide wheel 12 capable of being embedded in the guide groove 24.

[0092] In this way, when the moving door 2 moves on the fixed door 1, the guide wheel 12 can move in the guide groove 24, which not only plays a guiding role, but also increases the connecting position of the upper end and the lower end of the moving door 2 with the fixed door 1, which is conducive to improving the supporting effect.

[0093] For the floor safety door structure provided by the embodiment of the present application, a mutually matched sensing structure needs to be arranged between the fixed door 1 and the moving door 2, which is conducive to limiting the moving stroke of the moving door 2 on the fixed door 1.

[0094] In this embodiment of the present application, please refer to Figure 7 , Figure 11 , Figure 13 and Figure 14 , the floor safety door structure of the embodiment of the present application further comprises a first sensing assembly 5 and a second sensing assembly 6.

[0095] The first sensing assembly 5 is used for detecting the unfolding of the moving door 2 to position, as shown in Figure 11 and Figure 13As shown in the drawings, the first sensing assembly 5 comprises a sensor 51 and a trigger protrusion 52 for mutual touch cooperation, the sensor 51 is arranged on the side of the fixed door 1 away from the extension arm 11, and the trigger protrusion 52 is arranged on the side of the movable door 2 with the connecting arm 21. When the movable door 2 is about to be fully unfolded to the position on the fixed door 1, the trigger protrusion 52 on the movable door 2 and the sensor 51 on the fixed door 1 are mutually touched, so that the sensor 51 generates a detection signal to make the driving assembly 3 stop in time.

[0096] The second sensing assembly 6 is used for detecting the reset of the movable door 2 to the position, as shown in Figure 11 and Figure 14 The second sensing assembly 6 comprises a micro switch 61 and a trigger 62, the fixed door 1 with the extension arm 11 is provided with a bracket 14 on one side, the micro switch 61 is arranged on the bracket 14, and the sensing head 611 on the micro switch 61 extends outward. The trigger 62 can be preferably a trigger block on the movable door, and the trigger 62 is arranged on the side of the movable door 2 with the connecting arm 21 and is in touch cooperation with the sensing head 611 of the micro switch 61. When the movable door 2 is about to be reset to the position on the fixed door 1, the sensing head 611 of the micro switch 61 and the trigger 62 on the movable door 2 are mutually touched to make the micro switch 61 generate a detection signal to make the driving assembly 3 stop in time.

[0097] In this way, the first sensing assembly 5 and the second sensing assembly 6 are respectively used for detecting the unfolding or resetting of the movable door 2 to the position, so that the driving assembly 3 can be timely controlled to start and stop, and the movement stroke of the movable door 2 on the fixed door 1 is effectively limited.

[0098] In actual application, the movable door 2 is a large sheet metal part, and the position cooperation between the components on the movable door 2 and the components on the fixed door 1 is prone to dimensional tolerance, especially for the trigger 62 and the micro switch 61 which have high position cooperation requirements. When there is a tolerance, it will be difficult to adjust, resulting in the need to repair or even scrap the entire movable door 2, causing economic losses.

[0099] Therefore, in an embodiment of the present application, please refer to Figure 11 and Figure 14 The connecting arm 21 of the movable door 2 is further provided with a detachable mounting plate 25, the mounting plate 25 has a plurality of mounting grooves 251 for mounting the trigger 62, and the plurality of mounting grooves 251 are arranged along the length direction of the mounting plate 25, so that the trigger 62 can be selectively arranged on the corresponding mounting groove 251 of the mounting plate 25.

[0100] Therefore, the installation groove 251 at the corresponding position on the installation plate 25 can be selected, and the trigger 62 is arranged at a position on the selected installation groove 251, so that the position adaptability between the trigger 62 and the micro switch 61 is improved. In addition, when the arrangement position of the micro switch 61 on the fixed door 1 changes, the installation plate 25 can be detached from the movable door 2 and reassembled at a position that can be matched, so that the installation flexibility is effectively improved.

[0101] In another embodiment of the present application, referring to Figure 7 and Figure 11 the connecting arm 21 of the movable door 2 is further provided with a buffer 26, and the two sides of the fixed door 1 are respectively provided with an anti-collision member 15 that is in touch cooperation with the buffer 26.

[0102] In the embodiment, the buffer 26 on the movable door 2 and the anti-collision member 15 on the fixed door 1 can both be preferably made of rubber material, so that both of them have buffer elasticity. The anti-collision members 15 on the two sides of the fixed door 1 are oppositely arranged and are at the same height as the buffer 26 on the movable door 2.

[0103] Therefore, the two side ends of the buffer 26 are respectively in touch cooperation with the two anti-collision members 15 on the fixed door 1, which is beneficial to eliminate the inertial force when the movable door 2 is unfolded or reset, and effectively improves the protection effect on the safety door.

[0104] Referring to Figure 15 and Figure 16 the present application further provides a die casting equipment, which comprises a die casting machine body 200, and the two sides of the die casting machine body 200 are respectively provided with the die casting machine floor safety door structure 300 of the embodiment of the present application, and the floor safety door structures 300 on the two sides are oppositely arranged. When the movable doors 2 on the two safety doors are unfolded, the die casting machine body 200 is shielded from both sides, so that foreign matters are effectively prevented from entering the range of the die casting machine body 200.

[0105] The two floor safety door structures 300 are further connected with a connecting plate 7, and the two ends of the connecting plate 7 are respectively connected with the top of the fixed door 1 on the two safety doors, which is beneficial to improve the connection strength of the two floor safety doors and the overall stability of the two floor safety doors.

[0106] Preferably, in the embodiment, a plurality of connecting plates 7 are connected between the two floor safety door structures 300, and the plurality of connecting plates 7 constitute a reinforcing keel, which further improves the structural strength and the fixing effect.

[0107] In one embodiment of the present application, referring to Figure 15 and Figure 16The protection box 8 is arranged on the extension arm 11 of the fixed door 1, and the driving motor 32 in the driving assembly 3 can be accommodated in the protection box 8. The side of the protection box 8 facing the moving door 2 has an opening (not shown), so that the connecting arm 21 on the moving door 2 can extend into the protection box 8 and overlap with the extension arm 11. In this way, the protection effect of the driving assembly 3 on the floor safety door structure 300 is improved.

[0108] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A floor safety door structure of a die casting machine, characterized by, The application relates to a floor safety door structure comprising: a fixed door, one side of which is provided with an outwardly extending extension arm; a guide rail assembly arranged on the body of the fixed door and the extension arm, the guide rail assembly comprising a driving assembly and a transversely arranged double-layer guide rail, the driving assembly being arranged between the double-layer guide rail; a movable door, one side of which is provided with a connecting arm matched with the position of the extension arm, the connecting arm being provided with a connecting part and a pulley set arranged on the double-layer guide rail, the connecting part being connected with the driving assembly; the driving assembly is used for driving the connecting arm to move on the double-layer guide rail, so as to drive the movable door to unfold or overlap on the fixed door.

2. The drop safety door structure of the die casting machine according to claim 1, wherein: In the height direction of the fixed door, the guide rail assembly is arranged in the middle area of the fixed door.

3. The safety door structure of the die casting machine according to claim 1, wherein: The double-layer guide rail comprises parallel extending upper and lower guide rails; the pulley set comprises upper and lower rollers, the upper roller being arranged on the upper guide rail, and the lower roller being arranged on the lower guide rail; the upper roller and the lower roller are arranged in up-down alignment or up-down misalignment on the connecting arm.

4. The safety door structure of the die casting machine according to claim 1, wherein: The driving assembly comprises a transmission belt and a driving motor, the driving motor being used for driving the transmission belt to run in positive and reverse directions; the connecting part is a clamping device arranged on the connecting arm, and the connecting arm is connected to the transmission belt through the connecting part.

5. The drop safety door structure of the die casting machine according to claim 4, wherein: The transmission belt is a metal chain.

6. The drop safety door structure of the die casting machine according to claim 1, wherein: Upper and lower ends of the movable door are respectively provided with guide grooves, and the fixed door is provided with guide wheels arranged in the guide grooves.

7. The safety door structure of the die casting machine according to claim 1, wherein: The floor safety door structure further comprises a first sensing assembly for detecting that the movable door is unfolded to a position and a second sensing assembly for detecting that the movable door is reset to a position, The first sensing assembly comprises a sensor and a trigger convex part for mutual touch cooperation, the sensor being arranged on one side of the fixed door away from the extension arm, and the trigger convex part being arranged on one side of the movable door with the connecting arm; The second sensing assembly comprises a micro switch and a trigger piece, a support is arranged on one side of the fixed door with the extension arm, the micro switch is arranged on the support, and a sensing head on the micro switch extends outwardly; the trigger piece is arranged on one side of the movable door with the connecting arm and is in touch cooperation with the sensing head of the micro switch.

8. The drop safety door structure of the die casting machine according to claim 7, wherein: The connecting arm is further provided with a detachable mounting plate, the mounting plate is provided with a plurality of mounting grooves extending along the length direction of the mounting plate, and the trigger piece is selectively arranged in the mounting grooves of the mounting plate.

9. The drop safety door structure of a die casting machine according to any one of claims 1 to 8, characterized in that: The connecting arm of the movable door is further provided with a buffer piece, and the two sides of the fixed door are respectively provided with anti-collision pieces in touch cooperation with the buffer piece.

10. A die casting apparatus characterized by comprising: The application further relates to a die casting machine body, two sides of the die casting machine body are respectively provided with the floor safety door structure of the die casting machine according to any one of claims 1 to 9, the floor safety door structures on the two sides are oppositely arranged, and a connecting plate is further connected between the floor safety door structures on the two sides.

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