Adjustable mold for trapezoidal sleeper production

Abstract

The utility model discloses an adjustable mold for trapezoidal sleeper production, in the mold, four side plates are arranged for each sleeper longitudinal beam, namely a lower inner side plate, a lower outer side plate, an upper inner side plate and an upper outer side plate, the relative positions of the side plates are adjustable, so that the mold can adapt to sleeper longitudinal beams with different width sizes, and the distance between the two groups of side plates is adjustable, so that the production efficiency is improved, and the production cost is reduced. The distance between the inner side faces of the sleeper longitudinal beams is adjusted, and a plurality of positions and through holes for installing and fixing the movable end plates are preset so that the movable end plates can be placed at the preset positions on the basis of the length of the sleeper; and then rail bearing groove plates of different sizes and models are arranged, and the rail bearing groove plate adjusting device is selectively installed and arranged according to needs to transversely move the rail bearing groove plates, so that the horizontal vector of the trapezoidal sleeper is adjusted, and the positions of the nail holes are changed.

Description

Technical Field

[0001] The invention relates to the technical field of trapezoidal rail sleeper production and manufacturing, and in particular to an adjustable mould for trapezoidal rail sleeper production. Background Art

[0002] At present, the molds used in the production of trapezoidal sleepers can only be used for a single structural size and adapt to a single type of fasteners. The molds are not very versatile and have a low utilization rate. The mold manufacturing cost is high, and a special warehouse is required to store the molds, which increases management and storage costs.

[0003] Based on the above problems, the inventors have conducted in-depth research on the production mold of trapezoidal sleepers, hoping to design a universal and adjustable mold that can be used to produce trapezoidal sleepers of various common specifications. Summary of the invention

[0004] In order to overcome the above-mentioned problems, the inventors have conducted intensive research and designed an adjustable mold for the production of trapezoidal sleepers, in which four side panels are provided for each sleeper longitudinal beam, namely, a lower inner panel, a lower outer panel, an upper inner panel and an upper outer panel, and the relative position between the side panels is adjustable so as to adapt to sleeper longitudinal beams of different widths, and the distance between the two groups of side panels is adjustable so as to adjust the spacing between the inner sides of the sleeper longitudinal beams, and then a plurality of positions and through holes for installing and fixing movable end plates are preset so as to place the movable end plates at preset positions based on the sleeper length; and then rail groove plates of different sizes and models are provided and selected for installation as needed, and a rail groove plate adjustment device is provided to move the rail groove plates laterally so as to adjust the horizontal inclination of the trapezoidal sleeper and change the position of the nail holes, thereby completing the utility model.

[0005] Specifically, the object of the present invention is to provide an adjustable mold for producing a trapezoidal sleeper, the mold comprising a base 1, on which a lower inner plate 2 and a lower outer plate 3 extending in the length direction are arranged,

[0006] An upper inner plate 4 extending in the length direction is mounted on the lower inner plate 2.

[0007] An upper outer plate 5 extending in the length direction is mounted on the lower outer plate 3;

[0008] The width of the sleeper produced by the mold for producing the trapezoidal sleeper is adjusted by setting the distance between the lower outer plate 3 and the lower inner plate 2 and moving the upper outer plate 5 in the width direction;

[0009] Two movable end plates 6 extending in the width direction are installed between the upper outer plate 5 and the upper inner plate 4, and the length of the trapezoidal sleeper produced by the mold can be adjusted by adjusting the distance between the two movable end plates 6;

[0010] Below the upper outer plate 4, the upper inner plate 5 and the movable end plate 6, a detachable rail bearing groove plate 7 is provided between the lower inner plate 2 and the lower outer plate 3, and the horizontal angle of the trapezoidal sleeper produced by the mold can be adjusted by moving the rail bearing groove plate 7 along the width direction;

[0011] The lower inner plate 2 and the lower outer plate 3 are both provided with two strips;

[0012] The distance between the inner sides of the longitudinal beams of the sleepers for producing the trapezoidal sleepers by the mold is adjusted by setting the distance between the two lower inner plates 2 and moving the upper inner plate 4 along the width direction.

[0013] The lower inner plate 2 and the lower outer plate 3 both include a lower vertical plate 25 arranged vertically.

[0014] The side opposite to each other of the lower vertical plate 25 of the lower inner plate 2 and the lower vertical plate 25 of the lower outer plate 3 is the front side, and the side opposite thereto is the back side. Two connecting plates are horizontally arranged on the back side. The connecting plate located at the bottom is called the first connecting plate 21, and the connecting plate located at the top is called the second connecting plate 22.

[0015] Wherein, the upper inner plate 4 and the upper outer plate 5 both include an upper vertical plate 26 arranged vertically, and the upper vertical plate 26 participates in enclosing a casting space for casting the trapezoidal sleeper;

[0016] The surface of the upper vertical plate 26 in the casting space is the front side, and the surface opposite thereto is the back side. Two connecting plates are horizontally arranged on the back side. The connecting plate located at the bottom is called the third connecting plate 23, and the connecting plate located at the top is called the fourth connecting plate 24.

[0017] Wherein, the mold further includes a side plate adjustment device 81;

[0018] The side plate adjusting device 81 is disposed at the contact position between the lower inner plate 2 and the upper inner plate 4, and the upper inner plate 4 is moved along the width direction by the side plate adjusting device 81;

[0019] The side plate adjusting device 81 is also disposed at the contact position between the lower outer plate 3 and the upper outer plate 5 , and the upper outer plate 5 is moved along the width direction by the side plate adjusting device 81 .

[0020] A waist-shaped through hole 811 is provided on the second connecting plate 22 along the width direction.

[0021] The side plate adjusting device 81 comprises:

[0022] A connecting block 812 is vertically arranged, and its bottom end passes through the third connecting plate 23, and can drive the third connecting plate 23 to reciprocate in the horizontal direction; the bottom end of the connecting block 812 extends through the waist-shaped through hole 811 to the bottom of the second connecting plate 22, and a horizontal threaded hole begins to be formed on the bottom end portion below the second connecting plate 22;

[0023] The first adjusting screw 813 is horizontally installed below the second connecting plate 22 and fixed to the second connecting plate 22; the end of the first adjusting screw 813 is provided with an external thread and can be screwed into the threaded hole, and the first adjusting screw 813 is rotated to drive the connecting block 812 and the third connecting plate 23 to move back and forth along the waist-shaped through hole 811.

[0024] The mold further includes a rail groove plate adjustment device 82;

[0025] The rail support groove plate adjusting device 82 is arranged on the lower outer plate 3 and connected to the rail support groove plate 7. The rail support groove plate 7 is moved along the width direction by the rail support groove plate adjusting device 82.

[0026] Wherein, a support platform 821 is provided on both the lower inner plate 2 and the lower outer plate 3, and both ends of the rail support groove plate 7 are overlapped on the support platform 821;

[0027] A groove 822 is provided at the bottom of one end of the rail support groove plate 7.

[0028] The rail bearing groove plate adjustment device 82 comprises a second adjustment screw 823 horizontally mounted on the lower vertical plate 25 of the lower outer plate 3;

[0029] One end of the second adjustment screw 823 is a screwing head 824, which is exposed on the outside of the vertical plate 25; the middle part of the second adjustment screw 823 is screwed together with the vertical plate 25; the other end of the second adjustment screw 823 is provided with an outwardly protruding round table 825, and the round table 825 is embedded in the groove 822; by screwing the screwing head 824, the round table 825 drives the groove 822 and the rail groove plate 7 to move along the width direction.

[0030] Wherein, the mold further includes a height adjustment device 83;

[0031] The height adjustment device 83 is installed on the upper outer plate 5, and the height adjustment device 83 is used to control the thickness of the trapezoidal sleepers produced by the mold.

[0032] Among them, the height adjustment device 83 includes a height adjustment plate 831 vertically arranged above the fourth connecting plate 24 of the upper outer plate 4, and a waist-shaped hole 832 is opened on the height adjustment plate 831. The horizontally arranged third adjustment screw 833 passes through the waist-shaped hole 832 and is screwed into the threaded hole of the height adjustment block 834; the height adjustment plate 831 and the height adjustment block 834 are tightened and fixed by the third adjustment screw 833, so that the height adjustment block 833 is at the expected height position, thereby controlling the thickness of the trapezoidal sleepers produced by the mold.

[0033] Wherein, at the position of the limiting boss of the mold production trapezoidal sleeper, a notch 51 is provided on the upper upright plate 26 of the upper outer plate 5, and a support plate 52 and a slope plate 53 are provided outside the notch 51;

[0034] Among them, two inclined plates 53 are provided, arranged along the width direction and located on both sides; one support plate 52 is provided, arranged along the length direction, and the support plate 52 and the two inclined plates 53 together enclose a casting space for the trapezoidal sleeper limiting boss.

[0035] The beneficial effects of the present invention include:

[0036] (1) According to the adjustable mold for producing trapezoidal sleepers provided by the present invention, the mold can be used to produce various trapezoidal sleepers with different widths, thicknesses, lengths and horizontal angles, and at the same time, the rail support platform of the sleeper can be compatible with different types of fasteners;

[0037] (2) The adjustable mold for producing trapezoidal sleepers provided by the present invention can be customized according to design requirements, suitable fastener types, line conditions and other factors;

[0038] (3) The adjustable mold for producing trapezoidal sleepers provided by the present invention can save mold costs, improve mold utilization, reduce workers' labor intensity, and promote the development of prefabrication of products in the field of rail transit vibration reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram showing a top view of the structure of an adjustable mold for producing a trapezoidal sleeper of the present application;

[0040] Figure 2 Show Figure 1 A partial enlarged view of the upper left corner;

[0041] Figure 3 Show Figure 1 Middle AA section view;

[0042] Figure 4 Show Figure 3 A partial enlarged view of the middle B area;

[0043] Figure 5 Show Figure 3 A partial enlarged view of the middle C area;

[0044] Figure 6 Show Figure 3 A partial enlarged view of the D area in the middle;

[0045] Figure 7 A schematic top view of the movable end plate connection is shown.

[0046] Description of Reference Numerals

[0047] 1- Base

[0048] 11-Roller mechanism

[0049] 2-Lower inner panel

[0050] 21-First connecting plate

[0051] 22- Second connecting plate

[0052] 23-Third connecting plate

[0053] 24-Fourth connecting plate

[0054] 25-Lower stand

[0055] 26-Upper stand

[0056] 3-Lower lateral plate

[0057] 4-Upper inner panel

[0058] 5-Upper lateral plate

[0059] 51-Gap

[0060] 52-Backboard

[0061] 53-slope plate

[0062] 6-Active end plate

[0063] 61-Connecting angle steel

[0064] 62-Connecting screw

[0065] 7-Rail groove plate

[0066] 81-Side panel adjustment device

[0067] 811-Waist-Shaped Through Hole

[0068] 812-Connection Block

[0069] 813-First adjustment screw

[0070] 82-Rail groove plate adjustment device

[0071] 821-supporting platform

[0072] 822-Groove

[0073] 823-Second adjustment screw

[0074] 824-Screw head

[0075] 825-Round Table

[0076] 826-Nut

[0077] 827-Stop Washer

[0078] 83-Height adjustment device

[0079] 831-Height Adjustment Plate

[0080] 832-Waist-Shaped Hole

[0081] 833-Third adjustment screw

[0082] 834-Raise the block DETAILED DESCRIPTION

[0083] The present invention will be further described in detail below through the accompanying drawings and embodiments. Through these descriptions, the characteristics and advantages of the present invention will become more clear and distinct.

[0084] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise noted.

[0085] In the present application, the length direction refers to the length direction of the trapezoidal sleeper, and the width direction refers to the direction perpendicular to the length direction on the horizontal plane, that is, the extension direction of the connecting steel pipe on the trapezoidal sleeper.

[0086] The present invention provides an adjustable mold for producing a trapezoidal sleeper, such as Figure 1 , Figure 2 and Figure 3 As shown in , the mold includes a base 1, on which a lower inner plate 2 and a lower outer plate 3 extending in the length direction are arranged.

[0087] An upper inner plate 4 extending in the length direction is mounted on the lower inner plate 2.

[0088] An upper outer plate 5 extending in the length direction is installed on the lower outer plate 3; in the present application, the outer plate is located at the edge of the base 1, the inner plate is located in the middle of the base 1, and the gap between a group of inner plates and outer plates is the forming space of the sleeper longitudinal beam.

[0089] The width of the trapezoidal sleepers produced by the mold is adjusted by setting the distance between the lower outer plate 3 and the lower inner plate 2 and moving the upper outer plate 5 along the width direction; so that the width of the trapezoidal sleepers produced by the mold includes at least four specifications of 580mm, 600mm, 620mm and 680mm.

[0090] Two movable end plates 6 extending in the width direction are installed between the upper outer plate 5 and the upper inner plate 4. The length of the trapezoidal sleepers produced by the mold is adjusted by adjusting the distance between the two movable end plates 6; so that the length of the trapezoidal sleepers produced by the mold includes at least nine specifications: 5900mm, 5800mm, 5300mm, 4700mm, 4100mm, 3500mm, 3400mm, 2900mm, and 2800mm.

[0091] Below the upper outer plate 4, the upper inner plate 5 and the movable end plate 6, a detachable rail bearing groove plate 7 is provided between the lower inner plate 2 and the lower outer plate 3, and the horizontal angle of the trapezoidal sleeper produced by the mold can be adjusted by moving the rail bearing groove plate 7 along the width direction;

[0092] The lower inner plate 2 and the lower outer plate 3 are both provided with two strips;

[0093] The inner side spacing of the longitudinal beams of the trapezoidal sleepers produced by the mold is adjusted by setting the distance between the two lower inner plates 2 and moving the upper inner plate 4 along the width direction; so that the inner side spacing of the longitudinal beams of the trapezoidal sleepers produced by the mold includes at least five specifications: 840mm, 911mm, 931mm, 936mm, and 940mm.

[0094] In a preferred embodiment, Figure 4 , Figure 5 and Figure 6 As shown in FIG. 1 , the lower inner plate 2 and the lower outer plate 3 both include a lower vertical plate 25 arranged vertically.

[0095] The side opposite to each other of the lower vertical plate 25 of the lower inner plate 2 and the lower vertical plate 25 of the lower outer plate 3 is the front side, and the side opposite thereto is the back side. Two connecting plates are horizontally arranged on the back side. The connecting plate located at the bottom is called the first connecting plate 21, and the connecting plate located at the top is called the second connecting plate 22.

[0096] Preferably, the upper inner plate 4 and the upper outer plate 5 both include an upper vertical plate 26 arranged vertically, and the upper vertical plate 26 participates in enclosing a casting space for casting the trapezoidal sleeper;

[0097] The surface of the upper vertical plate 26 in the casting space is the front side, and the surface opposite thereto is the back side. Two connecting plates are horizontally arranged on the back side. The connecting plate located at the bottom is called the third connecting plate 23, and the connecting plate located at the top is called the fourth connecting plate 24.

[0098] In a preferred embodiment, Figure 6 As shown in , the mold also includes a side plate adjustment device 81;

[0099] The side plate adjusting device 81 is disposed at the contact position between the lower inner plate 2 and the upper inner plate 4, and the upper inner plate 4 is moved along the width direction by the side plate adjusting device 81;

[0100] The side plate adjusting device 81 is also disposed at the contact position between the lower outer plate 3 and the upper outer plate 5 , and the upper outer plate 5 is moved along the width direction by the side plate adjusting device 81 .

[0101] Preferably, a waist-shaped through hole 811 is provided on the second connecting plate 22 along the width direction.

[0102] The side plate adjusting device 81 comprises:

[0103] A connecting block 812 is vertically arranged, and its bottom end passes through the third connecting plate 23, and can drive the third connecting plate 23 to reciprocate in the horizontal direction; the bottom end of the connecting block 812 extends through the waist-shaped through hole 811 to the bottom of the second connecting plate 22, and a horizontal threaded hole begins to be formed on the bottom end portion below the second connecting plate 22;

[0104] The first adjusting screw 813 is horizontally installed below the second connecting plate 22 and fixed to the second connecting plate 22; the end of the first adjusting screw 813 is provided with an external thread and can be screwed into the threaded hole, and the first adjusting screw 813 is rotated to drive the connecting block 812 and the third connecting plate 23 to move back and forth along the waist-shaped through hole 811.

[0105] The mold also includes a side panel fastening device; the side panel fastening device includes bolts that penetrate the second connecting plate 22 and the third connecting plate 23 from top to bottom, and the penetration portion is a round hole or a waist-shaped hole, that is, a round hole is opened on the second connecting plate 22, and a waist-shaped hole is opened on the third connecting plate 23, or a waist-shaped hole is opened on the second connecting plate 22, and a round hole is opened on the third connecting plate 23, so that after adjusting the position of the upper inner plate 4 or the upper outer plate 5 by the side plate adjustment device 81, the upper side plate and the lower side plate can still be fastened by tightening the bolts. The upper side plate in this application refers to the upper inner plate or the upper outer plate, and the lower side plate in this application refers to the lower inner plate or the lower outer plate.

[0106] In a preferred embodiment, Figure 5 As shown in , the mold also includes a rail groove plate adjustment device 82;

[0107] The rail support groove plate adjusting device 82 is arranged on the lower outer plate 3 and connected to the rail support groove plate 7. The rail support groove plate 7 is moved along the width direction by the rail support groove plate adjusting device 82.

[0108] Preferably, a support platform 821 is provided on both the lower inner plate 2 and the lower outer plate 3, and both ends of the support rail groove plate 7 are overlapped on the support platform 821;

[0109] A groove 822 is provided at the bottom of one end of the rail support groove plate 7.

[0110] The rail bearing groove plate adjustment device 82 comprises a second adjustment screw 823 horizontally mounted on the lower vertical plate 25 of the lower outer plate 3;

[0111] One end of the second adjustment screw 823 is a screwing head 824, which is exposed on the outside of the vertical plate 25; the middle part of the second adjustment screw 823 is screwed together with the vertical plate 25; the other end of the second adjustment screw 823 is provided with an outwardly protruding round table 825, and the round table 825 is embedded in the groove 822; by screwing the screwing head 824, the round table 825 drives the groove 822 and the rail groove plate 7 to move along the width direction.

[0112] On the second adjustment screw 823, a nut 826 is further provided between the middle part and the round table 825, and a stop washer 827 is further provided between the nut 826 and the groove 822. The second adjustment screw 823 is locked by the stop washer 827 and the nut 826 to prevent the second adjustment screw 823 from being accidentally triggered or rotated. In the present application, since the rail bearing plate 7 is overlapped on the supporting platform, the rail bearing plate 7 may be carefully moved or deflected under the action of the pouring mortar. By providing the stop washer 827 and the nut 826, it can be ensured that the rail bearing plate 7 is stable and reliable during the pouring process, and will not accidentally move.

[0113] In the present application, when the rail bearing groove plate 7 needs to be replaced, the stop washer 827 needs to be removed first and the nut 826 needs to be loosened.

[0114] In the present application, the rail groove plate 7 includes an inclined cover plate, on which a plurality of through holes are provided for accommodating the rail groove mold. The inclination of the cover plate varies unevenly, so that when the rail groove plate 7 is moved horizontally, the horizontal vector of the mold for producing trapezoidal sleepers can be adjusted.

[0115] In the present application, nail holes are provided on the rail groove mold, and the positions of the nail holes can be adjusted by laterally moving the rail groove plate 7, so that the trapezoidal sleepers produced by the mold have an offset suitable for the curved section.

[0116] In a preferred embodiment, Figure 4As shown in , the mold also includes a height adjustment device 83;

[0117] The height adjustment device 83 is installed on the upper outer plate 5, and the height adjustment device 83 is used to control the thickness of the trapezoidal sleepers produced by the mold.

[0118] Preferably, the height adjustment device 83 includes a height adjustment plate 831 vertically arranged above the fourth connecting plate 24 of the upper outer plate 4, a waist-shaped hole 832 is opened on the height adjustment plate 831, and a third adjustment screw 833 arranged horizontally passes through the waist-shaped hole 832 and is screwed into the threaded hole of the height adjustment block 834; the height adjustment plate 831 and the height adjustment block 834 are tightened and fixed by the third adjustment screw 833, so that the height adjustment block 834 is at a desired height position, thereby controlling the thickness of the sleepers of the trapezoidal sleepers produced by the mold. Specifically, in the present application, the thickness of the sleepers is adjusted by controlling the replacement of height adjustment blocks 834 of different sizes, so that the thickness of the sleepers produced by the mold is 169mm or 185mm.

[0119] In a preferred embodiment, Figure 2 As shown in the figure, at the position of the limiting boss of the mold production trapezoidal sleeper, a notch 51 is provided on the upper upright plate 26 of the upper outer plate 5, and a backing plate 52 and a slope plate 53 are provided outside the notch 51;

[0120] Among them, two inclined plates 53 are provided, arranged along the width direction and located on both sides; one support plate 52 is provided, arranged along the length direction, and the support plate 52 and the two inclined plates 53 together enclose a casting space for the trapezoidal sleeper limiting boss.

[0121] Preferably, a fixing plate is provided outside the support plate 52 and the slope plate 53, and the fixing plate is welded and fixed to the upper vertical plate 26 to determine the specific position of the limiting boss, and then the support plate 52 and the slope plate 53 are fixed to the fixing plate by bolts to form a trapezoidal rail sleeper limiting boss casting space whose size and position meet the requirements. The slope plate 53 is provided in this application mainly to assist in the subsequent demoulding of the rail sleeper, especially when demoulding is difficult, the demoulding can be assisted by removing the slope plate 53 and the support plate 52 connected thereto.

[0122] In a preferred embodiment, a roller mechanism 11 is provided at the bottom of the base 1 , and the mold is moved along the length direction by the roller mechanism 11 .

[0123] In the present application, slots for connecting steel pipes to pass through are also opened at appropriate positions of the upper vertical plate 26. In order to adapt to trapezoidal sleepers of different sizes, multiple slots are provided. In the specific pouring process, in order to prevent mortar from leaking from unused slots and other holes on the wall, plugging plates are used in advance to block these unused slots and other holes.

[0124] Preferably, a crowbar support point is provided at the base and the ends of the lower inner plate and the lower outer plate, and a knocking block is provided on the fourth connecting plate 24 of the inner plate to facilitate demoulding.

[0125] In a preferred embodiment, the movable end plate 6 is provided with a variety of sizes to facilitate adaptation to trapezoidal sleepers of different size requirements. After the specific size is selected, it is connected and fixed to the upper vertical plate 26 of the upper inner plate and the upper outer plate by connecting angle steel 61 and connecting screws 62.

[0126] The present invention has been described above in conjunction with preferred embodiments, but these embodiments are only exemplary and serve only as an illustration. On this basis, the present invention may be subjected to a variety of substitutions and improvements, all of which fall within the scope of protection of the present invention.

Claims

1. An adjustable mold for producing trapezoidal sleepers, characterized in that: The mold comprises a base (1), on which a lower inner plate (2) and a lower outer plate (3) extending in a length direction are arranged. An upper inner plate (4) extending in the length direction is mounted on the lower inner plate (2). An upper outer plate (5) extending in the length direction is mounted on the lower outer plate (3); The width of the trapezoidal sleeper produced by the mold is adjusted by setting the distance between the lower outer plate (3) and the lower inner plate (2) and moving the upper outer plate (5) along the width direction; Two movable end plates (6) extending in the width direction are installed between the upper outer side plate (5) and the upper inner side plate (4), and the length of the trapezoidal sleeper produced by the mold can be adjusted by adjusting the distance between the two movable end plates (6); A detachable rail support groove plate (7) is provided below the upper outer plate (5), the upper inner plate (4) and the movable end plate (6), and between the lower inner plate (2) and the lower outer plate (3), and the horizontal angle of the trapezoidal sleeper produced by the mold can be adjusted by moving the rail support groove plate (7) along the width direction; Wherein, a support platform (821) is provided on both the lower inner plate (2) and the lower outer plate (3), and both ends of the rail support groove plate (7) are overlapped on the support platform (821); A groove (822) is provided at the bottom of one end of the rail support groove plate (7). The mold further comprises a rail groove plate adjustment device (82); the rail groove plate adjustment device (82) comprises a second adjustment screw (823) arranged horizontally; the end of the second adjustment screw (823) is overlapped to pull the support platform (821) to move in the width direction; The lower inner plate (2) and the lower outer plate (3) are both provided with two strips; The distance between the two lower inner plates (2) and the upper inner plate (4) is moved along the width direction to adjust the inner side spacing of the sleeper longitudinal beams of the trapezoidal sleeper produced by the mold.

2. The adjustable mold for producing trapezoidal sleepers according to claim 1, characterized in that: The lower inner plate (2) and the lower outer plate (3) both include a lower vertical plate (25) arranged vertically. The side of the lower vertical plate (25) of the lower inner plate (2) and the side of the lower vertical plate (25) of the lower outer plate (3) facing each other is the front side, and the side opposite thereto is the back side. Two connecting plates are horizontally arranged on the back side. The connecting plate located at the bottom is called the first connecting plate (21), and the connecting plate located at the top is called the second connecting plate (22).

3. The adjustable mold for producing trapezoidal sleepers according to claim 2, characterized in that: The upper inner plate (4) and the upper outer plate (5) both include an upper vertical plate (26) arranged vertically, and the upper vertical plate (26) participates in enclosing a casting space for casting the trapezoidal sleeper; The surface of the upper vertical plate (26) in the casting space is the front side, and the surface opposite to it is the back side. Two connecting plates are horizontally arranged on the back side. The connecting plate located at the bottom is called the third connecting plate (23), and the connecting plate located at the top is called the fourth connecting plate (24).

4. The adjustable mold for producing trapezoidal sleepers according to claim 3, characterized in that: The mold also includes a side plate adjustment device (81); The side plate adjusting device (81) is arranged at a contact position between the lower inner plate (2) and the upper inner plate (4), and the upper inner plate (4) is moved along the width direction by the side plate adjusting device (81); The side plate adjusting device (81) is also arranged at the contact position between the lower outer plate (3) and the upper outer plate (5), and the upper outer plate (5) is moved along the width direction by the side plate adjusting device (81).

5. The adjustable mold for producing trapezoidal sleepers according to claim 4, characterized in that: A waist-shaped through hole (811) is provided on the second connecting plate (22) along the width direction. The side plate adjusting device (81) comprises: A connecting block (812) is vertically arranged, the bottom end of which passes through the third connecting plate (23) and is capable of driving the third connecting plate (23) to reciprocate in the horizontal direction; the bottom end of the connecting block (812) extends through the waist-shaped through hole (811) to the bottom of the second connecting plate (22), and a horizontal threaded hole is formed on the bottom end portion below the second connecting plate (22); A first adjusting screw (813) is horizontally mounted below the second connecting plate (22) and fixed to the second connecting plate (22); an end of the first adjusting screw (813) is provided with an external thread and can be screwed into the threaded hole, and the first adjusting screw (813) is rotated to drive the connecting block (812) and the third connecting plate (23) to reciprocate along the waist-shaped through hole (811).

6. The adjustable mold for producing trapezoidal sleepers according to claim 3, characterized in that: The rail bearing groove plate adjustment device (82) is arranged on the lower outer side plate (3) The second adjusting screw (823) of the rail groove plate adjusting device (82) is horizontally mounted on the lower vertical plate (25) of the lower outer plate (3); one end of the second adjusting screw (823) is a screwing head (824) exposed on the outer side of the vertical plate (25); the middle part of the second adjusting screw (823) is screwed with the vertical plate (25) thread; the other end of the second adjusting screw (823) is provided with a round table (825) protruding outward, and the round table (825) is embedded in the groove (822); by screwing the screwing head (824), the round table (825) drives the groove (822) and the rail groove plate (7) to move along the width direction.

7. The adjustable mold for producing trapezoidal sleepers according to claim 3, characterized in that: The mold also includes a height adjustment device (83); The height adjustment device (83) is installed on the upper outer side plate (5), and the thickness of the trapezoidal sleeper produced by the mold is controlled by the height adjustment device (83).

8. The adjustable mold for producing trapezoidal sleepers according to claim 7, characterized in that: The height adjustment device (83) comprises a height adjustment plate (831) vertically arranged above the fourth connecting plate (24) of the upper outer plate (5), a waist-shaped hole (832) being provided on the height adjustment plate (831), and a third adjustment screw (833) arranged horizontally passing through the waist-shaped hole (832) and then screwed into a threaded hole of the height adjustment block (834); The height adjustment plate (831) and the height adjustment block (834) are tightened and fixed by the third adjustment screw (833), so that the height adjustment block (834) is at a desired height position, thereby controlling the thickness of the trapezoidal sleepers produced by the mold.

9. The adjustable mold for producing trapezoidal sleepers according to claim 3, characterized in that: At the position of the limiting boss of the mold for producing the trapezoidal sleeper, a notch (51) is provided on the upper upright plate (26) of the upper outer plate (5), and a support plate (52) and a slope plate (53) are provided outside the notch (51); Two inclined plates (53) are provided, arranged along the width direction and located on both sides; one support plate (52) is provided, arranged along the length direction, and the support plate (52) and the two inclined plates (53) together enclose a casting space for the trapezoidal sleeper limiting boss.

10. The adjustable mold for producing trapezoidal sleepers according to claim 1, characterized in that: A roller mechanism (11) is provided at the bottom of the base (1), and the mold is moved along the length direction by means of the roller mechanism (11).

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