A production mold for a lining segment

Abstract

The embodiment of the application provides a lining segment production mold, and belongs to the field of lining segment production.The first side mold connecting leg upper end is fixedly connected with the first side mold, the second side mold connecting leg upper end is fixedly connected with the second side mold, the first side mold connecting leg and the second side mold connecting leg lower end are movably connected with the bottom mold; the first roller is movably connected with the first vertical column upper end, the second roller is movably connected with the second vertical column upper end, and the first vertical column and the second vertical column lower end are connected with the support.The first side mold guide plate is fixed on the first side mold, and the first roller rolls along the first guide track surface of the first side mold guide plate; the second side mold guide plate is fixed on the second side mold, and the second roller rolls along the second guide track surface of the second side mold guide plate.The bottom mold is placed on the support, and the lifting end of the lifting mechanism moves up and down after penetrating through the support to push the bottom mold, so that the first side mold and the second side mold are automatically opened and closed, manpower and time are saved, and the production efficiency of the lining segment is improved.

Description

Technical Field

[0001] This application relates to the field of lining segment production, specifically to a lining segment production mold. Background Technology

[0002] Tube lining segments are a key component in shield tunneling construction. With the widespread application of shield tunneling in tunnel and subway construction, the market demand for tube lining segments is increasing year by year. Tube lining segments are made of high-strength, impermeable concrete. During production, concrete is poured into closed segment molds to form the lining segments. After forming, the closed molds are opened for demolding to obtain the lining segments.

[0003] Currently, the main components of segment molds on the market include two opposing side molds, two opposing end molds, and a bottom mold. When closing the mold, fastening bolts are used to lock the side molds to the bottom mold, the end molds to the bottom mold, and the end molds to the side molds. When opening the mold, these fastening bolts are loosened one by one.

[0004] However, the number of fastening bolts used on the segment mold is large, and tightening or loosening these bolts one by one requires a lot of manpower and time, resulting in high labor costs and low production efficiency of lining segments. Summary of the Invention

[0005] In view of the above problems, this application provides a mold for producing lining segments, which overcomes or at least partially solves the above problems.

[0006] According to one aspect of the embodiments of this application, a lining segment production mold is provided, comprising: a first side mold, a second side mold, a first side mold connecting leg, a second side mold connecting leg, a bottom mold, a first end mold, a second end mold, a first roller, a first column, a second roller, a second column, a first side mold guide plate, a second side mold guide plate, a bracket, and a lifting mechanism;

[0007] The first side mold and the second side mold are positioned opposite each other. The upper end of the connecting leg of the first side mold is fixedly connected to the first side mold, and the upper end of the connecting leg of the second side mold is fixedly connected to the second side mold. The lower ends of the connecting legs of the first side mold and the second side mold are both movably connected to the bottom mold. The first end mold and the second end mold are positioned opposite each other. A cavity for accommodating the lining segments is formed between the first side mold, the second side mold, the first end mold, the second end mold, and the bottom mold.

[0008] The first roller is movably connected to the upper end of the first column, and the second roller is movably connected to the upper end of the second column. The lower ends of both the first and second columns are fixedly connected to the bracket. The first side mold guide plate is fixed to the outer surface of the first side mold via a first fixed surface. The outer surface of the first side mold is the surface of the first side mold furthest from the second side mold. The first side mold guide plate has a first guide trajectory surface. The first fixed surface and the first guide trajectory surface are two opposing surfaces on the first side mold guide plate. The distance between the upper part of the first guide trajectory surface and the first fixed surface is greater than that between the upper part of the first guide trajectory surface and the first fixed surface. The distance between the lower part of the first fixed surface and the first fixed surface is such that the first roller rolls along the first guide trajectory surface; the second side mold guide plate is fixed to the outer side surface of the second side mold through the second fixed surface, the outer side surface of the second side mold is the surface of the second side mold that is far away from the first side mold, the second side mold guide plate has a second guide trajectory surface, the second fixed surface and the second guide trajectory surface are two opposite surfaces on the second side mold guide plate, the distance between the upper part of the second guide trajectory surface and the second fixed surface is greater than the distance between the lower part of the second guide trajectory surface and the second fixed surface, and the second roller rolls along the second guide trajectory surface;

[0009] The bottom mold is placed on a support frame, which has a hollow structure. The lifting end of the lifting mechanism passes through the hollow part of the support frame and pushes the bottom mold up and down.

[0010] In one alternative embodiment, the lining segment production mold further includes: a first end mold connecting leg, a second end mold connecting leg, a third roller, a third column, a fourth roller, a fourth column, a first end mold guide plate, and a second end mold guide plate;

[0011] The upper end of the first end mold connecting leg is fixedly connected to the first end mold, the upper end of the second end mold connecting leg is fixedly connected to the second end mold, and the lower ends of both the first end mold connecting leg and the second end mold connecting leg are movably connected to the bottom mold.

[0012] The third roller is movably connected to the upper end of the third column, and the fourth roller is movably connected to the upper end of the fourth column. The lower ends of both the third and fourth columns are fixedly connected to the bracket. The first end mold guide plate is fixed to the outer surface of the first end mold via a third fixed surface. The outer surface of the first end mold is the surface furthest from the second end mold. The first end mold guide plate has a third guide trajectory surface. The third fixed surface and the third guide trajectory surface are two opposing surfaces on the first end mold guide plate. The distance between the upper part of the third guide trajectory surface and the third fixed surface is greater than that between the upper part of the third guide trajectory surface and the third fixed surface. The distance between the lower part of the second end mold and the third fixed surface is greater than the distance between the lower part of the second end mold and the third fixed surface. The third roller rolls along the third guide track surface. The second end mold guide plate is fixed to the outer side of the second end mold by the fourth fixed surface. The outer side of the second end mold is the surface of the second end mold that is far away from the first end mold. The second end mold guide plate has a fourth guide track surface. The fourth fixed surface and the fourth guide track surface are two opposite surfaces on the second end mold guide plate. The distance between the upper part of the fourth guide track surface and the fourth fixed surface is greater than the distance between the lower part of the fourth guide track surface and the fourth fixed surface. The fourth roller rolls along the fourth guide track surface.

[0013] In one alternative embodiment, the lining segment production mold further includes: a first pin and a first side mold hinge seat;

[0014] The lower end of the first side mold connecting leg is provided with a first through hole, which penetrates the side wall of the first side mold connecting leg.

[0015] The first side mold hinge is fixed on the bottom mold. The first side mold hinge has a receiving part. Two second through holes with opposite positions are provided on the side wall of the receiving part. The lower end of the first side mold connecting leg is located in the receiving part. The first pin passes through the second through hole and the first through hole to realize the movable connection between the lower end of the first side mold connecting leg and the bottom mold.

[0016] In one alternative embodiment, the lining segment production mold further includes: a first ear plate, a second ear plate, and a second pin.

[0017] The first roller has a third through hole along the axial direction;

[0018] One end of the first ear plate and the second ear plate are fixedly connected to the upper end of the first column. The first ear plate and the second ear plate are respectively provided with a fourth through hole and a fifth through hole, and the fourth through hole and the fifth through hole are positioned opposite each other. The first roller is located between the first ear plate and the second ear plate. The second pin passes through the fifth through hole, the third through hole and the fourth through hole to realize the movable connection between the first roller and the upper end of the first column.

[0019] In one alternative embodiment, the first side formwork includes a first arc-shaped stiffening plate, a second arc-shaped stiffening plate, a first side plate, and a first vertical stiffening plate;

[0020] The first end face of the first side plate is fixedly connected to the surface of the first arc-shaped rib, and the second end face of the first side plate is fixedly connected to the surface of the second arc-shaped rib. The surfaces of the first arc-shaped rib and the second arc-shaped rib are opposite to each other.

[0021] The two ends of the first vertical rib are fixedly connected to the plate surface of the first arc-shaped rib and the plate surface of the second arc-shaped rib, respectively. Alternatively, the side of the first vertical rib is fixedly connected to the outer plate surface of the first side plate. The outer plate surface of the first side plate is the plate surface of the first side plate that is far away from the second side plate. The second side plate is located on the second side mold and is opposite to the position of the first side plate.

[0022] In one alternative embodiment, the lining segment production mold further includes: a first spring;

[0023] The first end of the first spring is connected to the first side mold connecting leg to form a first connection point, and the second end of the first spring is connected to the first column to form a second connection point; when the first spring is in a relaxed state, the vertical distance between the first connection point and the second connection point is not greater than a first threshold.

[0024] In one alternative approach, the lower portion of the first guide trajectory surface includes at least a first part and a second part from top to bottom, wherein the distance between the first part and the first fixed surface is greater than the distance between the second part and the first fixed surface.

[0025] In one alternative approach, the maximum distance between the first guide track surface and the second guide track surface is a first gap, and the first roller and the second roller have a second gap, which is smaller than the first gap.

[0026] In one alternative approach, the maximum distance between the third guide track surface and the fourth guide track surface is a third gap, and there is a fourth gap between the third roller and the fourth roller, which is smaller than the third gap.

[0027] In one alternative approach, the vertical dimensions of the upper portions of the third and fourth guide trajectory surfaces are both greater than the vertical dimensions of the upper portions of the first and second guide trajectory surfaces.

[0028] In this embodiment, the bottom mold is placed on a support. When the lifting mechanism pushes the bottom mold upwards or moves it downwards, the first roller rolls downwards / upwards along the upper / lower portion of the first guide track surface. Simultaneously, the second roller rolls downwards / upwards along the upper / lower portion of the second guide track surface. Since the lower end of the first side mold connecting leg is movably connected to the bottom mold, the distance between the upper portion of the first guide track surface and the first fixed surface is greater than the distance between the lower portion of the first guide track surface and the first fixed surface. Therefore, when the first roller rolls downwards / upwards along the upper / lower portion of the first guide track surface, the first side mold will rotate around the connection point between the first side mold connecting leg and the bottom mold in a direction away from / closer to the second side mold. Similarly, since the lower end of the second side mold connecting leg is movably connected to the bottom mold, the distance between the upper part of the second guide track surface and the second fixed surface is greater than the distance between the lower part of the second guide track surface and the second fixed surface. Therefore, when the second roller rolls down / up along the upper / lower part of the second guide track surface, the second side mold will rotate around the connection point between the second side mold connecting leg and the bottom mold in a direction away from / closer to the first side mold. In this way, the automatic opening / closing of the first and second side molds can be achieved. Compared with related technologies that manually loosen / tighten the fastening bolts one by one to open / close the side molds, this saves manpower and time, and improves the production efficiency of the lining segments.

[0029] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a three-dimensional structural schematic diagram of a lining segment production mold provided in an embodiment of this application.

[0032] Figure 2 This is a front view of a lining segment production mold provided in an embodiment of this application.

[0033] Figure 3 for Figure 2 A sectional view of section AA in the middle.

[0034] Figure 4This application provides a schematic diagram of a structure for realizing the movable connection between the first roller and the upper end of the first column.

[0035] Figure 5 A front view of a first side mold provided in an embodiment of this application.

[0036] Figure 6 This is a schematic diagram showing the spacing between a first side mold guide plate and a second side mold guide plate, as well as a first roller and a second roller, provided in an embodiment of this application.

[0037] Figure 7 This is a schematic diagram showing the spacing between a first end mold guide plate, a second end mold guide plate, a third roller, and a fourth roller, provided in an embodiment of this application.

[0038] Figure 8 This is a schematic diagram of the mold opening of a first side mold and a second side mold provided in an embodiment of this application.

[0039] Figure 9 This is a schematic diagram of the mold opening of a first end mold and a second end mold provided in an embodiment of this application.

[0040] The reference numerals in the attached figures are explained as follows:

[0041] 01 Support 16 Third Column

[0042] 02 Bottom mold 17 First end mold connecting leg

[0043] 03 First side mold 18 Second end mold connecting leg

[0044] 031 First arc-shaped stiffener 19 First end mold guide plate

[0045] 032 Second arc-shaped stiffener 191 Third guide trajectory surface

[0046] 033 First side plate 20 Second end mold guide plate

[0047] 034 First vertical rib 201 Fourth guide trajectory surface

[0048] 04 Second side mold 21 First pin

[0049] 05 First side mold connecting leg 22 First side mold hinge seat

[0050] 06 First end mold 23 First ear plate

[0051] 07 First roller 24 Second ear plate

[0052] 08 First column 25 Second pin

[0053] 09 Second roller 26 Third pin

[0054] 10 Second column 27 First end mold hinge seat

[0055] 11 First side mold guide plate 28 Fourth pin

[0056] 111 First guide trajectory surface 29 Second end mold hinge seat

[0057] 12 Third roller 30 First spring

[0058] 13 Fourth column 31 Second side mold connecting leg

[0059] 14 Fourth roller 32 Second side mold guide plate

[0060] 15 Lifting mechanism 321 Second guide trajectory surface. Detailed Implementation

[0061] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0063] The terms "comprising" and "having," and any variations thereof, used in the specification, claims, and drawings of this application are intended to cover without excluding other meanings. The words "a" or "an" do not exclude the presence of multiples.

[0064] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0065] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0066] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the lining segment production mold of this application. For example, in the description of this application, the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0067] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0068] In the description of this application, unless otherwise stated, "multiple" means two or more (including two), and similarly, "multiple groups" means two or more (including two groups).

[0069] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, "connection" or "linkage" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. In circuit structures, "connection" or "linkage" can refer not only to a physical connection but also to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate component, as long as the circuit is connected; it can also refer to the internal connection of two components. Signal connection can refer not only to signal connection through a circuit but also to signal connection through a media, such as radio waves. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0070] This application provides a mold for producing lining segments, the mold being as follows: Figure 1 The diagram shows a bracket 01, a bottom mold 02, a first side mold 03, a second side mold 04, a first side mold connecting leg 05, a first end mold 06, a first roller 07, a first column 08, a second roller 09, a second column 10, a first side mold guide plate 11, and so on. Figure 2 The lifting mechanism 15 shown is as follows: Figure 6 The second side mold connecting leg 31, the second side mold guide plate 32, and the second end mold (not shown in the figure) are shown.

[0071] The first side mold 03 and the second side mold 04 are positioned opposite each other. The upper end of the first side mold connecting leg 05 is fixedly connected to the first side mold 03, and the upper end of the second side mold connecting leg 31 is fixedly connected to the second side mold 04. The lower ends of both the first side mold connecting leg 05 and the second side mold connecting leg 31 are movably connected to the bottom mold 02. The first end mold 06 and the second end mold are positioned opposite each other. A cavity for accommodating the lining segments is formed between the first side mold 03, the second side mold 04, the first end mold 06, the second end mold, and the bottom mold 02.

[0072] It should be noted that the connection between the upper end of the first side mold connecting leg 05 and the first side mold 03, and the connection between the upper end of the second side mold connecting leg 31 and the second side mold 04, can both be welding.

[0073] To achieve a movable connection between the lower end of the first side mold connecting leg 05 and the bottom mold 02, one possible approach is as follows: Figure 2 As shown, the lining segment production mold may further include a first pin 21 and a first side mold hinge seat 22. The lower end of the first side mold connecting leg 05 is provided with a first through hole, which penetrates the side wall of the first side mold connecting leg 05; the first side mold hinge seat 22 is fixed on the bottom mold 02, and the first side mold hinge seat 22 has a receiving part, on the side wall of the receiving part are provided with two second through holes in opposite positions, the lower end of the first side mold connecting leg 05 is located in the receiving part, and the first pin 21 passes through the second through hole and the first through hole.

[0074] For example, the first side mold hinge seat 22 can be fixed to both sides of the bottom mold 02, or it can be fixed to the upper surface of the bottom mold 02, and the fixing method can be welding. Figure 3 As shown, the horizontal height of the connection point of the first side mold hinge seat 22 on the bottom mold 02 is located between the center of gravity M of the first side mold 03 and the lower surface of the bottom mold 02, so that the first side mold 03 can rotate around the connection point.

[0075] The number of first side mold connecting legs 05 can be one or more. The number of first pins 21 and first side mold hinge seats 22 is equal to the number of first side mold connecting legs 05, and the first pins 21, first side mold hinge seats 22 and first side mold connecting legs 05 correspond one-to-one. In practical applications, when the length of the first side mold is short, the number of first side mold connecting legs 05 can be set to be less; when the length of the first side mold is long, the number of first side mold connecting legs 05 can be set to be more. Figure 2 The structure is shown when there are two first side mold connecting legs 05, first pin 21 and first side mold hinge 22. It can achieve the movable connection between the lower end of the first side mold connecting leg 05 and the bottom mold 02 without increasing the manufacturing difficulty.

[0076] In another possible embodiment, the lining segment production mold may also include a hinge to achieve a movable connection between the lower end of the first side mold connecting leg 05 and the bottom mold 02. Specific implementation methods for achieving the movable connection between the lower end of the first side mold connecting leg 05 and the bottom mold 02 via a hinge can be found in related technologies and will not be described in detail here.

[0077] It should also be noted that the implementation method of the movable connection between the lower end of the second side mold connecting leg 31 and the bottom mold 02 can be referred to the relevant description of the movable connection between the lower end of the first side mold connecting leg 05 and the bottom mold 02, and will not be described in detail here.

[0078] The first roller 07 is movably connected to the upper end of the first column 08, and the second roller 09 is movably connected to the upper end of the second column 10. The lower ends of both the first column 08 and the second column 10 are fixedly connected to the bracket 01. The first side mold guide plate 11 is fixed to the outer surface of the first side mold 03 via a first fixed surface. The outer surface of the first side mold 03 is the surface of the first side mold 03 furthest from the second side mold 04, such as... Figure 3 As shown, the first side mold guide plate 11 has a first guide trajectory surface 111. The first fixed surface and the first guide trajectory surface 111 are two opposing surfaces on the first side mold guide plate 11. The distance between the upper part of the first guide trajectory surface 111 and the first fixed surface is greater than the distance between the lower part of the first guide trajectory surface 111 and the first fixed surface. The first roller 07 rolls along the first guide trajectory surface 111. The second side mold guide plate 32 is fixed to the outer surface of the second side mold 04 by the second fixed surface. The outer surface of the second side mold 04 is the surface of the second side mold 04 that is far away from the first side mold 03, as shown. Figure 6 As shown, the second side mold guide plate 32 has a second guide trajectory surface 321. The second fixed surface and the second guide trajectory surface 321 are two opposing surfaces on the second side mold guide plate 32. The distance between the upper part of the second guide trajectory surface 321 and the second fixed surface is greater than the distance between the lower part of the second guide trajectory surface 321 and the second fixed surface. The second roller 09 rolls along the second guide trajectory surface 321.

[0079] The first roller 07 and the first column 08 are located outside the first side mold. The number of first rollers 07 and first columns 08 is equal, and each can be one or more. In practical applications, when the length of the first side mold is short, the number of first rollers 07 and first columns 08 can be set to be less; when the length of the first side mold is long, the number of first rollers 07 and first columns 08 can be set to be more. Figure 1 The structure is shown when there are two first rollers 07 and first columns 08, which can achieve the movable connection between the upper ends of the first rollers 07 and the first columns 08 without increasing the manufacturing difficulty.

[0080] To achieve the movable connection between the upper end of the first roller 07 and the first column 08, one possible approach is as follows: Figure 4 As shown, the lining segment production mold may also include a first ear plate 23, a second ear plate 24, and a second pin 25.

[0081] The first roller 07 has a third through hole along the axial direction. One end of the first ear plate 23 and the second ear plate 24 are fixedly connected to the upper end of the first column 08. The first ear plate 23 and the second ear plate 24 are respectively provided with a fourth through hole and a fifth through hole, which are positioned opposite each other. The first roller 07 is located between the first ear plate 23 and the second ear plate 24, and the second pin 25 passes through the fifth through hole, the third through hole and the fourth through hole.

[0082] It should be noted that the fixed connection between one end of the first ear plate 23 and the second ear plate 24 and the upper end of the first column 08 can both be welded. Specifically, when the first ear plate 23 is fixedly connected to the upper end of the first column 08, it can be the end face of the first ear plate 23, or a portion of the surface of the first ear plate 23, that is fixedly connected to the upper end of the first column 08. Similarly, when the second ear plate 24 is fixed to the upper end of the first column 08, it can be the end face of the second ear plate 24, or a portion of the surface of the second ear plate 24, that is fixedly connected to the upper end of the first column 08.

[0083] In another possible approach, a sixth through hole can be provided axially on the first roller 07, a groove can be provided at the upper end of the first column 08, and two seventh through holes positioned opposite each other can be provided on the side wall of the groove. Then, the first roller 07 is placed in the groove, and a pin is passed through the sixth and seventh through holes to achieve a movable connection between the first roller 07 and the upper end of the first column 08.

[0084] It should also be noted that the second roller 09 and the second column 10 are located outside the second side mold. The number of second rollers 09 and second columns 10 is equal, and each can be one or more. The implementation of the movable connection between the second roller 09 and the second column 10 can be referred to the relevant description of the movable connection between the upper end of the first roller 07 and the first column 08, which will not be described in detail here.

[0085] The lower ends of the first column 08 and the second column 10 can both be fixed to the bracket 01 by welding.

[0086] The upper part and the lower part of the first guide trajectory surface 111 can be a plane or a curved surface, respectively. As long as the distance between the upper part of the first guide trajectory surface 111 and the first fixed surface is greater than the distance between the lower part of the first guide trajectory surface 111 and the first fixed surface, the first side mold 03 will not be opened when the lining segment production mold is vibrated by external interference, causing the bottom mold 02 to be temporarily separated from the support 01.

[0087] Similarly, the upper part of the second guide trajectory surface 321 and the lower part of the second guide trajectory surface 321 can be a plane or a curved surface, respectively. As long as the distance between the upper part of the second guide trajectory surface 321 and the second fixed surface is greater than the distance between the lower part of the second guide trajectory surface 321 and the second fixed surface, the second side mold 04 will not be opened when the lining segment production mold is vibrated by external interference, causing the bottom mold 02 to be temporarily separated from the support 01.

[0088] The bottom mold 02 is placed on the support 01, which has a hollow structure. The lifting end of the lifting mechanism 15 passes through the hollow part of the support 01 and pushes the bottom mold 02 to move up and down.

[0089] Among them, the support 01 can be a frame structure with interconnected horizontal and vertical plates inside, used to place the bottom mold 02.

[0090] The lifting mechanism 15 can be a lifting hydraulic cylinder, a lifting air cylinder, a lifting airbag, or a jack, etc. There can be one or more lifting mechanisms 15, as long as they can maintain the vertical movement of the bottom mold 02. Of course, to save costs while ensuring the smooth vertical movement of the bottom mold 02 by the lifting mechanism 15, such as... Figure 2 As shown, there can be four lifting mechanisms 15, which can be evenly distributed below the bottom mold 02. In specific implementation, the lifting mechanisms 15 can be vertically installed on the mold opening and closing station of the tube sheet production line, and the lower ends of the lifting mechanisms 15 are all fixed to the foundation. After the lifting end of the lifting mechanism 15 passes through the hollow part of the bracket 01, it can push the bottom mold 02 to move up and down, so as to realize the smooth lifting of the bottom mold 02.

[0091] In this embodiment, the bottom mold 02 is placed on the support 01. When the lifting mechanism 15 pushes the bottom mold 02 upward, the first roller 07 rolls downward along the upper part of the first guide track surface 111, and at the same time, the second roller 09 rolls downward along the upper part of the second guide track surface 321. Since the lower end of the first side mold connecting leg 05 is movably connected to the bottom mold 02, the distance between the upper part of the first guide track surface 111 and the first fixed surface is greater than the distance between the lower part of the first guide track surface 111 and the first fixed surface. Therefore, when the first roller 07 rolls downward along the upper part of the first guide track surface 111, the first side mold 03 will rotate away from the second side mold 04 around the connection point between the first side mold connecting leg 05 and the bottom mold 02. Similarly, since the lower end of the second side mold connecting leg 31 is movably connected to the bottom mold 02, and the distance between the upper part of the second guide track surface 321 and the second fixed surface is greater than the distance between the lower part of the second guide track surface 321 and the second fixed surface, when the second roller 09 rolls downward along the upper part of the second guide track surface 321, the second side mold 04 will rotate away from the first side mold 03 around the connection point between the second side mold connecting leg 31 and the bottom mold 02. In this way, the first side mold 03 and the second side mold 04 can be automatically opened. Compared with related technologies that manually loosen the fastening bolts one by one to open the side molds, this saves manpower and time, and improves the production efficiency of the lining segments.

[0092] Furthermore, when the lifting mechanism 15 moves downward, the first roller 07 rolls upward along the lower part of the first guide track surface 111, and the first side mold 03 rotates around the connection point between the first side mold connecting leg 05 and the bottom mold 02 towards the second side mold 04. Simultaneously, the second roller 09 rolls upward along the lower part of the second guide track surface 321, and the second side mold 04 rotates around the connection point between the second side mold connecting leg 31 and the bottom mold 02 towards the first side mold 03. In this way, the automatic closing of the first side mold 03 and the second side mold 04 can be achieved. Compared to related technologies that require manual tightening of bolts one by one to close the side molds, this saves manpower and time, and improves the production efficiency of the lining segments.

[0093] In some embodiments, the lining segment production mold provided in this application can not only automatically open and close the first side mold 03 and the second side mold 04, but also automatically open and close the first end mold 06 and the second end mold. When automatically opening and closing the first end mold 06 and the second end mold, as follows... Figure 1 and Figure 2 As shown, the lining segment production mold may further include: a first end mold connecting leg 17, a second end mold connecting leg 18, a third roller 12, a third column 16, a fourth roller 14, a fourth column 13, a first end mold guide plate 19, and a second end mold guide plate 20.

[0094] The upper end of the first end mold connecting leg 17 is fixedly connected to the first end mold 06, the upper end of the second end mold connecting leg 18 is fixedly connected to the second end mold, and the lower ends of the first end mold connecting leg 17 and the second end mold connecting leg 18 are both movably connected to the bottom mold 02.

[0095] It should be noted that the connection between the upper end of the first end mold connecting leg 17 and the first end mold 06, and the connection between the upper end of the second end mold connecting leg 18 and the second end mold, can both be welding.

[0096] To achieve a movable connection between the lower end of the first end mold connecting leg 17 and the bottom mold 02, in one possible manner, such as Figure 2 As shown, the lining segment production mold may also include a third pin 26 and a first end mold hinge seat 27.

[0097] It should be noted that the structure and description of the first end mold connecting leg 17, the third pin 26 and the first end mold hinge seat 27 can be referred to the first side mold connecting leg 05, the first pin 21 and the first side mold hinge seat 22 respectively, and will not be described in detail here.

[0098] It should also be noted that the implementation method of the movable connection between the lower end of the first end mold connecting leg 17 and the bottom mold 02 can be referred to the relevant description of the movable connection between the lower end of the first side mold connecting leg 05 and the bottom mold 02, and will not be described in detail here.

[0099] To achieve a movable connection between the lower end of the second end mold connecting leg 18 and the bottom mold 02, one possible approach is as follows: Figure 2 As shown, the lining segment production mold may also include a fourth pin 28 and a second end mold hinge seat 29.

[0100] It should be noted that the structure and description of the second end mold connecting leg 18, the fourth pin 28 and the second end mold hinge seat 29 can be referred to the first end mold connecting leg 17, the third pin 26 and the first end mold hinge seat 27 respectively, and will not be described in detail here.

[0101] It should also be noted that the number of the second end mold connecting legs 18 is equal to the number of the first end mold connecting legs 17. The implementation method of the movable connection between the lower end of the second end mold connecting leg 18 and the bottom mold 02 can be referred to the relevant description of the movable connection between the lower end of the first side mold connecting leg 05 and the bottom mold 02, which will not be described in detail here.

[0102] The third roller 12 is movably connected to the upper end of the third column 16, the fourth roller 14 is movably connected to the upper end of the fourth column 13, and the lower ends of the third column 16 and the fourth column 13 are both fixedly connected to the bracket 01.

[0103] The first end mold guide plate 19 is fixed to the outer surface of the first end mold 06 via a third fixing surface. The outer surface of the first end mold 06 is the surface of the first end mold 06 that is furthest from the second end mold. Figure 2 As shown, the first end mold guide plate 19 has a third guide trajectory surface 191. The third fixed surface and the third guide trajectory surface 191 are two opposing surfaces on the first end mold guide plate 19. The distance between the upper part of the third guide trajectory surface 191 and the third fixed surface is greater than the distance between the lower part of the third guide trajectory surface 191 and the third fixed surface. The third roller 12 rolls along the third guide trajectory surface 191. The second end mold guide plate 20 is fixed to the outer surface of the second end mold by a fourth fixed surface. The outer surface of the second end mold is the surface of the second end mold that is far away from the first end mold 06. The second end mold guide plate 20 has a fourth guide trajectory surface 201. The fourth fixed surface and the fourth guide trajectory surface 201 are two opposing surfaces on the second end mold guide plate 20. The distance between the upper part of the fourth guide trajectory surface 201 and the fourth fixed surface is greater than the distance between the lower part of the fourth guide trajectory surface 201 and the fourth fixed surface. The fourth roller 14 rolls along the fourth guide trajectory surface 201.

[0104] It should be noted that the third roller 12 and the third column 16 are located outside the first end mold 06. The number of third rollers 12 and third columns 16 is equal, and each can be one or more. In practical applications, when the length of the first end mold 06 is short, the number of third rollers 12 and third columns 16 can be set to be less; when the length of the first end mold 06 is long, the number of third rollers 12 and third columns 16 can be set to be more. Figure 1 and Figure 2 The structure is shown when there are two third rollers 12 and three columns 16, which can achieve a movable connection between the upper ends of the third rollers 12 and the third columns 16 without increasing the manufacturing difficulty.

[0105] It should also be noted that the fourth roller 14 and the fourth column 14 are located outside the second end mold. The number of the fourth roller 14 and the fourth column 14 are equal, and each can be one or more.

[0106] The implementation method of the movable connection between the third roller 12 and the third column 16, and the implementation method of the movable connection between the fourth roller 14 and the fourth column 14, can be found in the relevant description of the movable connection between the upper end of the first roller 07 and the first column 08, and will not be described in detail here.

[0107] The lower ends of the third column 16 and the fourth column 14 can both be fixed to the bracket 01 by welding.

[0108] The upper part and the lower part of the third guide trajectory surface 191 can be either a plane or a curved surface. As long as the distance between the upper part of the third guide trajectory surface 191 and the third fixed surface is greater than the distance between the lower part of the third guide trajectory surface 191 and the third fixed surface, the first end mold 06 will not be opened when the lining segment production mold is vibrated by external interference, causing the bottom mold 02 to briefly separate from the support 01.

[0109] Similarly, the upper part and the lower part of the fourth guide trajectory surface 201 can be planes or curved surfaces, respectively. As long as the distance between the upper part of the fourth guide trajectory surface 201 and the fourth fixed surface is greater than the distance between the lower part of the fourth guide trajectory surface 201 and the fourth fixed surface, the second end mold will not open when the lining segment production mold vibrates due to external interference, causing the bottom mold 02 to briefly separate from the support 01.

[0110] In this embodiment, the bottom mold 02 is placed on the support 01. When the lifting mechanism 15 pushes the bottom mold 02 upward, the third roller 12 rolls downward along the upper part of the third guide track surface 191, and at the same time, the fourth roller 14 rolls downward along the upper part of the fourth guide track surface 201. Since the lower end of the first end mold connecting leg 17 is movably connected to the bottom mold 02, the distance between the upper part of the third guide track surface 191 and the third fixed surface is greater than the distance between the lower part of the third guide track surface 191 and the third fixed surface. Therefore, when the third roller 12 rolls downward along the upper part of the third guide track surface 191, the first end mold 06 will rotate away from the second end mold around the connection point between the first end mold connecting leg 17 and the bottom mold 02. Similarly, since the lower end of the second end mold connecting leg 18 is movably connected to the bottom mold 02, and the distance between the upper part of the fourth guide track surface 201 and the fourth fixed surface is greater than the distance between the lower part of the fourth guide track surface 201 and the fourth fixed surface, when the fourth roller 14 rolls from the upper part to the lower part of the fourth guide track surface 201, the second end mold will rotate away from the first end mold 06 around the connection point between the second end mold connecting leg 18 and the bottom mold 02. In this way, the first end mold 06 and the second end mold can be automatically opened. Compared to related technologies that require manual loosening of bolts to open the end molds, this saves manpower and time, and improves the production efficiency of the lining segments.

[0111] Furthermore, when the lifting mechanism moves downward, the third roller 12 rolls upward along the lower part of the third guide track surface 191, causing the first end mold 06 to rotate towards the second end mold around the connection point between the first end mold connecting leg 17 and the bottom mold 02. Simultaneously, the fourth roller 14 rolls upward along the lower part of the fourth guide track surface 201, causing the second end mold to rotate towards the first end mold 06 around the connection point between the second end mold connecting leg 18 and the bottom mold 02. This allows for the automatic closing of the first and second end molds. Compared to related technologies that require manual tightening of bolts to close the end molds, this method saves manpower and time, and improves the production efficiency of the lining segments.

[0112] In some embodiments, such as Figure 5 As shown, in the embodiments of this application, the first side mold 03 may further include a first arc-shaped rib plate 031, a second arc-shaped rib plate 032, a first side plate 033, and a first vertical rib 034.

[0113] The first end face of the first side plate 033 is fixedly connected to the surface of the first arc-shaped rib plate 031, and the second end face of the first side plate 033 is fixedly connected to the surface of the second arc-shaped rib plate 032. The surfaces of the first arc-shaped rib plate 031 and the second arc-shaped rib plate 032 are opposite to each other. The two ends of the first vertical rib 034 are fixedly connected to the surfaces of the first arc-shaped rib plate 031 and the second arc-shaped rib plate 032, respectively. Alternatively, the side of the first vertical rib 034 is fixedly connected to the outer surface of the first side plate 033. The outer surface of the first side plate 033 is the surface of the first side plate 033 that is farthest from the second side plate. The second side plate is located on the second side mold 04 and is opposite to the position of the first side plate 033.

[0114] It should be noted that the number of first vertical ribs 034 can be one or more. The first vertical ribs 034 are used to increase the structural connection strength of the first side mold 03. In practical applications, when the length of the first side mold 03 is short, the number of first vertical ribs 034 can be set to be less, and when the length of the first side mold 03 is long, the number of first vertical ribs 034 can be set to be more. This application embodiment does not limit this.

[0115] In some embodiments of this application, the second side mold 04 may further include a third arc-shaped rib, a fourth arc-shaped rib, a second side plate, and a second vertical rib.

[0116] It should be noted that the structure and description of the third arc-shaped stiffener, the fourth arc-shaped stiffener, the second side plate, and the second vertical stiffener can be referred to the first arc-shaped stiffener 031, the second arc-shaped stiffener 032, the first side plate 033, and the first vertical stiffener 034, and will not be described in detail here.

[0117] In some embodiments, the first end mold 06 in this application may further include a fifth arc-shaped rib, a sixth arc-shaped rib, a third side plate, and a third vertical rib. The first end face of the third side plate is fixedly connected to the surface of the fifth arc-shaped rib, the second end face of the third side plate is fixedly connected to the surface of the sixth arc-shaped rib, the surface of the fifth arc-shaped rib is opposite to the surface of the sixth arc-shaped rib, the two ends of the third vertical rib are fixedly connected to the surface of the fifth arc-shaped rib and the surface of the sixth arc-shaped rib respectively, or the side of the third vertical rib is fixedly connected to the outer surface of the third side plate, the outer surface of the third side plate is the surface of the third side plate that is away from the fourth side plate, and the fourth side plate is located on the second end mold and is opposite to the position of the third side plate.

[0118] It should be noted that there can be one or more third vertical ribs, which are used to increase the structural connection strength of the first end mold 06. In practical applications, when the length of the first end mold 06 is short, the number of third vertical ribs can be set to be less, and when the length of the first end mold 06 is long, the number of third vertical ribs can be set to be more. This application embodiment does not limit this.

[0119] In some embodiments of this application, the second end mold further includes a seventh arc-shaped rib, an eighth arc-shaped rib, a fourth side plate, and a fourth vertical rib.

[0120] It should be noted that the structure and description of the seventh arc-shaped rib, the eighth arc-shaped rib, the fourth side plate and the fourth vertical rib can be referred to the fifth arc-shaped rib, the sixth arc-shaped rib, the third side plate and the third vertical rib, and will not be described in detail here.

[0121] In some embodiments, such as Figure 3 As shown in the embodiment of this application, the lining segment production mold may further include a first spring 30. The first end of the first spring 30 is connected to the first side mold connecting leg 05 to form a first connection point, and the second end of the first spring 30 is connected to the first column 08 to form a second connection point. When the first spring 30 is in a relaxed state, the vertical distance between the first connection point and the second connection point is not greater than a first threshold value.

[0122] It should be noted that the first connection point can be located at any part of the first side mold connecting leg 05, and the second connection point can be located at any part of the first column 08, as long as the vertical distance between the first connection point and the second connection point is not greater than the first threshold when the first spring 30 is in a relaxed state. The first threshold can be set according to actual needs, as long as the first spring 30 is in an extended state when the lifting mechanism 15 pushes the bottom mold 02 up and down. Figure 3 The diagram shows a structure where the first connection point is located in the middle of the first side mold connecting leg 05, and the second connection point is located in the middle of the first column 08.

[0123] The lining segment production mold provided in this application embodiment has a first spring 30 installed between the first side mold connecting leg 05 and the first column 08. When the lifting mechanism 15 pushes the bottom mold 02 upward, the first roller 07 rolls downward along the upper part of the first guide track surface 111, and the first spring 30 is stretched. Under the tension of the first spring 30, the first roller 07 can maintain close contact with the upper part of the first guide track surface 111. As the first roller 07 continues to roll downward along the first guide track surface 111 to the lower part of the first guide track surface 111, the tension of the first spring 30 gradually increases. Then, when the lifting mechanism 15 continues to push the bottom mold 02 upward, the first spring 30 can cause the first side mold 03 to rotate around the connection point between the first side mold connecting leg 05 and the bottom mold 02 in a direction away from the second side mold 04, thereby improving the efficiency of opening the first side mold 03.

[0124] When the lifting mechanism 15 supports the bottom mold 02 to move downward, the first roller 07 rolls upward along the lower part of the first guide track surface 111. Under the tension of the first spring 30, the first roller 07 can maintain close contact with the lower part of the first guide track surface 111. When the lifting mechanism 15 supports the bottom mold 02 to continue to move downward, the first spring 30 can cause the first side mold 03 to rotate around the connection point between the first side mold connecting leg 05 and the bottom mold 02 towards the second side mold 04, thereby improving the efficiency of closing the first side mold 03.

[0125] It should be noted that the lining segment production mold provided in this application embodiment can not only provide a first spring 30 between the first side mold connecting leg 05 and the first column 08, but also between other side mold connecting legs and their corresponding columns, and between the end mold connecting leg and its corresponding column. For specific setting methods, please refer to the above description of providing a first spring 30 between the first side mold connecting leg 05 and the first column 08, which will not be repeated here.

[0126] In some embodiments, the lower portion of the first guide trajectory surface 111 in this application includes at least a first portion and a second portion from top to bottom, and the distance between the first portion and the first fixed surface is greater than the distance between the second portion and the first fixed surface. The descriptions of the second guide trajectory surface 321, the third guide trajectory surface 191, and the fourth guide trajectory surface 201 can be found in the description of the first guide trajectory surface 111, and will not be described in detail here.

[0127] For example, the lower part of the first guide trajectory surface 111 is divided into a first part and a second part. The first part can be any plane with an angle between 30° and 60° with the vertical plane, and the second part can be any plane with an angle between 0° and 60° with the vertical plane. Regardless of how the lower part of the first guide trajectory surface 111 is divided, the transition between adjacent parts is achieved using an arc surface. The first guide trajectory surface 111 is not limited to a plane and can also be a multi-segment curved surface. The structure and description of the second guide trajectory surface 321, the third guide trajectory surface 191, and the fourth guide trajectory surface 201 can be referred to the structure and description of the first guide trajectory surface 111, and will not be described in detail here.

[0128] In some embodiments of this application, the maximum distance between the first guide track surface 111 and the second guide track surface 321 is a first gap, and there is a second gap between the first roller 07 and the second roller 09, which is smaller than the first gap.

[0129] For example, such as Figure 6 As shown, the maximum distance between the first guide track surface 111 and the second guide track surface 321 is C, and the distance between the first roller 07 and the second roller 09 is C-Δd, where C-Δd is less than C.

[0130] In this embodiment, the second spacing is smaller than the first spacing. Thus, when the first side mold 03 and the second side mold 04 are in a closed state, the first roller 07 can apply an appropriate clamping force to the first side mold 03, so that the first roller 07 and the first guide track surface 111 are always in contact. In addition, the second roller 09 can apply an appropriate clamping force to the second side mold 04, so that the second roller 09 and the second guide track surface 321 are always in contact.

[0131] In some embodiments of this application, the maximum distance between the third guide track surface 191 and the fourth guide track surface 201 is a third spacing, and the third roller 12 and the fourth roller 14 have a fourth spacing.

[0132] The fourth spacing is smaller than the third spacing.

[0133] For example, such as Figure 7 As shown, in this embodiment of the application, the maximum distance between the third guide track surface 191 and the fourth guide track surface 201 is D, and the distance between the third roller 12 and the fourth roller 14 is D-Δd, where D-Δd is less than D.

[0134] In this embodiment, the fourth spacing is smaller than the third spacing. Thus, when the first end mold 06 and the second end mold are in a closed state, the third roller 12 can apply an appropriate clamping force to the first end mold 06, so that the third roller 12 and the third guide track surface 191 are always in contact. In addition, the fourth roller 14 can apply an appropriate clamping force to the second end mold, so that the fourth roller 14 and the fourth guide track surface 201 are always in contact.

[0135] In some embodiments, the vertical dimensions of the upper portions of the third guide trajectory surface 191 and the fourth guide trajectory surface 201 are both larger than the vertical dimensions of the upper portions of the first guide trajectory surface 111 and the second guide trajectory surface 321. In this case, when the lifting mechanism pushes the bottom mold 02 upwards, when the first roller 07 has moved to the lower portion along the upper portion of the first guide trajectory surface 111, and the second roller 09 has moved to the lower portion along the upper portion of the second guide trajectory surface 321, the third roller 12 is still moving downwards in the upper portion of the third guide trajectory surface 191, and the fourth roller 14 is still moving downwards in the upper portion of the fourth guide trajectory surface 201. Therefore, it can be ensured that the first side mold 03 and the second side mold 04 are opened first, followed by the first end mold 06 and the second end mold; that is, the side molds are opened first, followed by the end molds, avoiding mold opening interference. For ease of understanding, the following is combined with... Figure 8 and Figure 9 The automatic mold opening and closing process of the lining segment production mold provided in the embodiments of this application is described as follows:

[0136] The process of automatic side mold opening: as follows Figure 8As shown, both the first guide track surface 111 and the second guide track surface 321 include an upper part and a lower part, and the lower part includes both a first part and a second part. The lifting end of the lifting mechanism 15 moves upward, contacts and pushes the bottom mold 02 relative to the support 01, raising it and causing the bottom mold 02 and the support 01 to gradually separate. The first roller 07 begins to roll from the upper part to the lower part along the first guide track surface 111, and the second roller 09 begins to roll from the upper part to the lower part along the second guide track surface 321. When the first roller 07 rolls downward from the upper part of the first guide track surface 111, the first side mold 03 remains closed. When the second roller 09 rolls downward from the upper part of the second guide track surface 321, the second side mold 04 remains closed. During this process, the first spring 30 is gradually stretched. Under the tension of the first spring 30, the first roller 07 can maintain close contact with the upper part of the first guide track surface 111, and the second roller 09 can maintain close contact with the upper part of the second guide track surface 321. As the lifting end of the lifting mechanism 15 continues to move upward, the first roller 07 rolls on the first part of the first guide track surface 111, and the second roller 09 rolls on the first part of the second guide track surface 321. During this process, the first spring 30 continues to be stretched, causing the first side mold 03 to rotate away from the second side mold 04 around the connection point between the first side mold connecting leg 05 and the bottom mold 02 under the combined action of gravity and spring tension. The second side mold 04 also rotates away from the first side mold 03 around the connection point between the second side mold connecting leg 31 and the bottom mold 02 under the combined action of gravity and spring tension. When the first roller 07 moves to the second part of the first guide track surface 111, the first side mold 03 opens to its maximum, achieving automatic opening of the first side mold 03. Simultaneously, the second roller 09 moves to the second part of the second guide track surface 321, and the second side mold 04 opens to its maximum, achieving automatic opening of the second side mold 04.

[0137] The process of automatic opening of the end mold: such as Figure 9 As shown, the third guide trajectory surface 191 and the fourth guide trajectory surface 201 are both divided into upper and lower parts. The opening process of the first end mold 06 and the second end mold is similar to the opening process of the first side mold 03 and the second side mold 04. However, in order to avoid mold opening interference, the upper parts of the third guide trajectory surface 191 and the fourth guide trajectory surface 201 are set to be longer than the upper parts of the first guide trajectory surface 111 and the second guide trajectory surface 321. In this way, when opening the mold, the first side mold 03 and the second side mold 04 of the lining tube segment production mold will be opened first, and then the first end mold 06 and the second end mold will be opened.

[0138] Specifically, the lifting end of the lifting mechanism 15 moves upward, pushing the bottom mold 02 up relative to the support 01, causing the bottom mold 02 and the support 01 to gradually separate. The third roller 12 begins to roll downward along the upper part of the third guide track surface 191, and the fourth roller 14 begins to roll downward along the upper part of the fourth guide track surface 201. When the third roller 12 rolls downward along the upper part of the third guide track surface 191, the first end mold 06 remains closed. When the fourth roller 14 rolls downward along the upper part of the fourth guide track surface 201, the second end mold remains closed. Only when the first roller 07 rolls a certain distance to the first part of the first guide track surface 111, and the second roller rolls a certain distance to the first part of the second guide track surface 321, does the third roller 12 begin to roll to the lower part of the third guide track surface 191, and the fourth roller 14 also begins to roll to the lower part of the fourth guide track surface 201. As the lifting end of the lifting mechanism 15 continues to move upward, the third roller 12 continues to roll along the lower part of the third guide track surface 191. Under the action of gravity, the first end mold 06 rotates away from the second end mold around the connection point between the first end mold connecting leg 17 and the bottom mold 02 until the lifting end of the lifting mechanism 15 moves upward to its maximum distance, and the first end mold 06 opens to its maximum, thus achieving automatic opening of the first end mold. At the same time, the fourth roller 14 continues to roll along the lower part of the fourth guide track surface 201. Under the action of gravity, the second end mold rotates away from the first end mold 06 around the connection point between the second end mold connecting leg 18 and the bottom mold 02 until the lifting end of the lifting mechanism 15 moves upward to its maximum distance, and the second end mold opens to its maximum, thus achieving automatic opening of the second end mold.

[0139] When the first side mold 03, the second side mold 04, the first end mold 06, and the second end mold are all opened, the cast lining segments can be removed from the cavity containing the lining segments. Then, the mold closing process begins. After the mold is closed, the casting of other lining segments can proceed.

[0140] The mold closing sequence of the lining segment production mold provided in this application embodiment is the reverse of the mold opening sequence. When opening the mold, the first side mold 03 and the second side mold 04 are opened first, and then the first end mold 06 and the second end mold are opened. Therefore, when closing the mold, the first end mold 06 and the second end mold are closed first, and then the first side mold 03 and the second side mold 04 are closed. The mold closing process of the lining segment production mold will be described in detail below.

[0141] The automatic closing process of the end molds: The lifting end of the lifting mechanism 15 moves downward, the bottom mold 02 descends under the action of gravity, and the distance between it and the support 01 gradually decreases. The third roller 12 begins to move upward along the lower part of the third guide track surface 191. Under the action of gravity, the first end mold 06 rotates around the connection point between the first end mold connecting leg 17 and the bottom mold 02 towards the second end mold, and the first end mold 06 slowly closes. At the same time, the fourth roller 14 also begins to move upward along the lower part of the fourth guide track surface 201. Under the action of gravity, the second end mold rotates around the connection point between the second end mold connecting leg 18 and the bottom mold 02 towards the first end mold 06, and the second end mold slowly closes. As the lifting end of the lifting mechanism 15 continues to move downward, the third roller 12 rolls to the upper part of the third guide track surface 191, and the first end mold 06 closes. At the same time, the fourth roller 14 rolls to the upper part of the fourth guide track surface 201, and the second end mold closes.

[0142] It should be noted that, in this embodiment of the application, springs can also be provided between the first end mold connecting leg 17 and the third column 16, and between the second end mold connecting leg 18 and the fourth column 13. The way the springs are set here is similar to the way the first spring 30 is set between the first side mold connecting leg 05 and the first column 08. The way the springs are set here will not be described in detail here.

[0143] When springs are also installed between the first end mold connecting leg 17 and the third column 16, and between the second end mold connecting leg 18 and the fourth column 13, the first end mold 06 will rotate around the connection point between the first end mold connecting leg 17 and the bottom mold 02 in a direction away from / closer to the second end mold under the combined action of gravity and the tension of the spring, thus improving the efficiency of opening / closing the first end mold 06. Similarly, the second end mold will rotate around the connection point between the second end mold connecting leg 18 and the bottom mold 02 in a direction away from / closer to the first end mold 06 under the combined action of gravity and the tension of the spring, thus improving the efficiency of opening / closing the second end mold.

[0144] The automatic closing process of the side mold: The lifting end of the lifting mechanism 15 moves downward, the bottom mold 02 descends under the action of gravity, and the distance between it and the support 01 gradually decreases. The first roller 07 begins to move upward along the second part of the first guide track surface 111, and the second roller 09 begins to move upward along the second part of the second guide track surface 321. The tension of the first spring 30 gradually decreases. When the first roller 07 rolls to the first part of the first guide track surface 111, the first side mold 03, under the combined action of gravity and the tension of the spring, rotates around the connection point between the first side mold connecting leg 05 and the bottom mold 02 towards the second side mold 04, and the first side mold 03 slowly closes. Similarly, when the second roller 09 rolls to the first part of the second guide track surface 321, the second side mold 04, under the combined action of gravity and the tension of the spring, rotates around the connection point between the second side mold connecting leg 31 and the bottom mold 02 towards the first side mold 03, and the second side mold 04 slowly closes. The lifting end of the lifting mechanism 15 continues to move downward. When the first roller 07 rolls upward along the first part of the first guide track surface 111 to the upper part of the first guide track surface 111, the first side mold 03 is closed. At the same time, when the second roller 09 rolls upward along the first part of the second guide track surface 321 to the upper part of the second guide track surface 321, the second side mold 04 is closed.

[0145] After the first end mold 06, the second end mold, the first side mold 03, and the second side mold 04 are all closed, the lifting end of the lifting mechanism 15 continues to move downwards until the bottom mold 02 returns to the support 01. Finally, the lifting end of the lifting mechanism 15 continues to move downwards and can disengage from the bottom mold 02. The lining segment production mold is kept closed by gravity and the constraint of the support 01.

[0146] As the lifting mechanism 15 moves downwards until the bottom mold 02 returns to the support 01, the first roller 07 continues to move upwards relative to the bottom mold 02 along the first guide track surface 111, and the second roller 09 continues to move upwards relative to the bottom mold 02 along the second guide track surface 321. The spring tension of the first spring 30, the clamping force of the first roller 07 on the first side mold 03, and the clamping force of the second roller 09 on the second side mold 04 ensure that the first roller 07 and the first guide track surface 111, as well as the second roller 09 and the second guide track surface 321, remain in good contact throughout this process. Similarly, the third roller 12 and the third guide track surface 191, and the fourth roller 14 and the fourth guide track surface 201 also remain in good contact throughout this process.

[0147] In summary, in this embodiment, the bottom mold is placed on the support. When the lifting mechanism pushes the bottom mold upwards / moves downwards, the first roller rolls downwards / upwards along the upper / lower portion of the first guide track surface. Simultaneously, the second roller rolls downwards / upwards along the upper / lower portion of the second guide track surface. Since the lower end of the first side mold connecting leg is movably connected to the bottom mold, the distance between the upper portion of the first guide track surface and the first fixed surface is greater than the distance between the lower portion of the first guide track surface and the first fixed surface. Therefore, when the first roller rolls downwards / upwards along the upper / lower portion of the first guide track surface, the first side mold will rotate around the connection point between the first side mold connecting leg and the bottom mold in a direction away from / closer to the second side mold. Similarly, since the lower end of the second side mold connecting leg is movably connected to the bottom mold, and the distance between the upper part of the second guide track surface and the second fixed surface is greater than the distance between the lower part of the second guide track surface and the second fixed surface, when the second roller rolls down / up along the upper / lower part of the second guide track surface, the second side mold will rotate around the connection point between the second side mold connecting leg and the bottom mold in a direction away from / closer to the first side mold. In this way, the automatic opening / closing of the first and second side molds can be achieved. Compared to related technologies that manually loosen / tighten bolts one by one to open / close the side molds, this saves manpower and time, and improves the production efficiency of the lining segments. In some embodiments, the lining segment production mold provided in this application can not only achieve the automatic opening and closing of the first and second side molds, but also the automatic opening and closing of the first and second end molds. Compared to related technologies that manually loosen / tighten bolts one by one to open / close the end molds, this saves manpower and time, and improves the production efficiency of the lining segments. In addition, in this embodiment, a first spring can be provided between the first side mold connecting leg and the first column, and between the second side mold connecting leg and the second column, to improve the efficiency of opening and closing the side mold. A first spring can also be provided between the first end mold connecting leg and the third column, and between the second end mold connecting leg and the fourth column, to improve the efficiency of opening and closing the end mold.

[0148] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0149] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A mold for producing lining segments, characterized in that, The lining segment production mold includes: a first side mold, a second side mold, a first side mold connecting leg, a second side mold connecting leg, a bottom mold, a first end mold, a second end mold, a first roller, a first column, a second roller, a second column, a first side mold guide plate, a second side mold guide plate, a bracket, and a lifting mechanism; The first side mold and the second side mold are positioned opposite each other. The upper end of the connecting leg of the first side mold is fixedly connected to the first side mold, and the upper end of the connecting leg of the second side mold is fixedly connected to the second side mold. The lower ends of the connecting legs of the first side mold and the second side mold are both movably connected to the bottom mold. The first end mold and the second end mold are positioned opposite each other. A cavity for accommodating the lining segments is formed between the first side mold, the second side mold, the first end mold, the second end mold, and the bottom mold. The first roller is movably connected to the upper end of the first column, and the second roller is movably connected to the upper end of the second column. The lower ends of both the first and second columns are fixedly connected to the bracket. The first side mold guide plate is fixed to the outer surface of the first side mold via a first fixing surface. The outer surface of the first side mold is the surface furthest from the second side mold. The first side mold guide plate has a first guide trajectory surface. The first fixing surface and the first guide trajectory surface are two opposing surfaces on the first side mold guide plate. The distance between the upper part of the first guide trajectory surface and the first fixing surface is greater than the distance between the upper part of the first guide trajectory surface and the first fixing surface. The distance between the lower part of the surface and the first fixed surface, the first roller rolls along the first guide trajectory surface; the second side mold guide plate is fixed to the outer side surface of the second side mold by the second fixed surface, the outer side surface of the second side mold is the surface of the second side mold away from the first side mold, the second side mold guide plate has a second guide trajectory surface, the second fixed surface and the second guide trajectory surface are two opposite surfaces on the second side mold guide plate, the distance between the upper part of the second guide trajectory surface and the second fixed surface is greater than the distance between the lower part of the second guide trajectory surface and the second fixed surface, the second roller rolls along the second guide trajectory surface; The bottom mold is placed on the support, which has a hollow structure. The lifting end of the lifting mechanism passes through the hollow part of the support and pushes the bottom mold to move up and down.

2. The lining segment production mold according to claim 1, characterized in that, The lining segment production mold also includes: a first end mold connecting leg, a second end mold connecting leg, a third roller, a third column, a fourth roller, a fourth column, a first end mold guide plate, and a second end mold guide plate; The upper end of the first end mold connecting leg is fixedly connected to the first end mold, the upper end of the second end mold connecting leg is fixedly connected to the second end mold, and the lower ends of both the first end mold connecting leg and the second end mold connecting leg are movably connected to the bottom mold. The third roller is movably connected to the upper end of the third column, and the fourth roller is movably connected to the upper end of the fourth column. The lower ends of both the third and fourth columns are fixedly connected to the bracket. The first end mold guide plate is fixed to the outer surface of the first end mold via a third fixing surface. The outer surface of the first end mold is the surface furthest from the second end mold. The first end mold guide plate has a third guide trajectory surface. The third fixing surface and the third guide trajectory surface are two opposing surfaces on the first end mold guide plate. The distance between the upper part of the third guide trajectory surface and the third fixing surface is greater than the distance between the upper part of the third guide trajectory surface and the third fixing surface. The distance between the lower part of the surface and the third fixed surface, the third roller rolls along the third guide trajectory surface; the second end mold guide plate is fixed to the outer side of the second end mold by the fourth fixed surface, the outer side of the second end mold is the surface of the second end mold away from the first end mold, the second end mold guide plate has a fourth guide trajectory surface, the fourth fixed surface and the fourth guide trajectory surface are two opposite surfaces on the second end mold guide plate, the distance between the upper part of the fourth guide trajectory surface and the fourth fixed surface is greater than the distance between the lower part of the fourth guide trajectory surface and the fourth fixed surface, the fourth roller rolls along the fourth guide trajectory surface.

3. The lining segment production mold according to claim 1, characterized in that, The lining segment production mold also includes: a first pin and a first side mold hinge seat; The lower end of the first side mold connecting leg is provided with a first through hole, which penetrates the side wall of the first side mold connecting leg. The first side mold hinge is fixed on the bottom mold. The first side mold hinge has a receiving part. Two second through holes with opposite positions are provided on the side wall of the receiving part. The lower end of the first side mold connecting leg is located in the receiving part. The first pin passes through the second through hole and the first through hole to realize the movable connection between the lower end of the first side mold connecting leg and the bottom mold.

4. The lining segment production mold according to claim 1, characterized in that, The lining segment production mold also includes: a first ear plate, a second ear plate, and a second pin. The first roller has a third through hole along the axial direction; One end of the first ear plate and the second ear plate are fixedly connected to the upper end of the first column. The first ear plate and the second ear plate are respectively provided with a fourth through hole and a fifth through hole, and the fourth through hole and the fifth through hole are positioned opposite each other. The first roller is located between the first ear plate and the second ear plate. The second pin passes through the fifth through hole, the third through hole and the fourth through hole to realize the movable connection between the first roller and the upper end of the first column.

5. The lining segment production mold according to claim 1, characterized in that, The first side mold includes a first arc-shaped stiffening plate, a second arc-shaped stiffening plate, a first side plate, and a first vertical stiffening plate; The first end face of the first side plate is fixedly connected to the surface of the first arc-shaped rib, and the second end face of the first side plate is fixedly connected to the surface of the second arc-shaped rib. The surfaces of the first arc-shaped rib and the second arc-shaped rib are opposite to each other. The two ends of the first vertical rib are fixedly connected to the surface of the first arc-shaped rib and the surface of the second arc-shaped rib, respectively. Alternatively, the side of the first vertical rib is fixedly connected to the outer surface of the first side plate. The outer surface of the first side plate is the surface of the first side plate that is far away from the second side plate. The second side plate is located on the second side mold and is opposite to the position of the first side plate.

6. The lining segment production mold according to claim 1, characterized in that, The mold for producing the lining segments also includes: a first spring; The first end of the first spring is connected to the first side mold connecting leg to form a first connection point, and the second end of the first spring is connected to the first column to form a second connection point; when the first spring is in a relaxed state, the vertical distance between the first connection point and the second connection point is not greater than a first threshold.

7. The lining segment production mold according to claim 1, characterized in that, The lower part of the first guide trajectory surface includes at least a first part and a second part from top to bottom, and the distance between the first part and the first fixed surface is greater than the distance between the second part and the first fixed surface.

8. The lining segment production mold according to claim 1, characterized in that, The maximum distance between the first guide track surface and the second guide track surface is the first gap, and there is a second gap between the first roller and the second roller, which is smaller than the first gap.

9. The lining segment production mold according to claim 2, characterized in that, The maximum distance between the third guide track surface and the fourth guide track surface is the third gap, and there is a fourth gap between the third roller and the fourth roller, which is smaller than the third gap.

10. The lining segment production mold according to claim 2, characterized in that, The vertical dimensions of the upper portion of the third guide trajectory surface and the upper portion of the fourth guide trajectory surface are both greater than the vertical dimensions of the upper portion of the first guide trajectory surface and the upper portion of the second guide trajectory surface.

Images