Vertical die casting machine

Abstract

The utility model discloses a vertical die-casting machine which comprises a support, a fixed die plate, a movable die plate and a pull rod, the pull rod is vertically installed at the top end of the support, the fixed die plate is fixedly installed at the bottom of the pull rod, and the movable die plate is driven by a die moving mechanism to move up and down along the pull rod. An opening and closing device is arranged on the top face of the movable mold plate and comprises a brake block and an opening and closing drive, the mold locking device comprises a wedge block, a mold locking wedge and a mold locking drive, a plurality of protruding teeth are arranged on the outer wall of the opening and closing block, and a plurality of transverse grooves meshed with the protruding teeth in a matched mode are formed in the pull rod. The opening and closing drive drives the opening and closing block to move in the direction perpendicular to the pull rod so as to mesh the protruding teeth with the transverse groove. The mold locking drive drives the mold locking wedge to move in the direction perpendicular to the pull rod, so that the mold locking wedge is gradually wedged to the wedge block, and the movable mold plate is gradually pressed to be locked on the back side of the movable mold plate. Mould locking is achieved through wedge caulking, direct pressing of a traditional large oil cylinder is replaced, the mould locking speed can be increased, the wedge has the force increasing effect, and the size specification of the oil cylinder can be greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection molding machine, die casting machine technical field, specifically, relate to a vertical die casting machine. BACKGROUND

[0002] Die casting machine is used for pressure casting equipment, under the action of pressure melt metal liquid injection to mold cooling forming, open mold after getting solid casting, including vertical and horizontal two kinds. The current traditional vertical die casting machine has the following shortcomings:

[0003] The movable die plate is usually driven by a large-diameter locking oil cylinder to open and close the mold, and a certain pressure is maintained until the product cools down after closing the mold to prevent the mold from expanding. Since it is a long-stroke large oil cylinder, the running speed is very slow.

[0004] Therefore, the utility model is provided. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, and a vertical die casting machine is provided. To solve the above technical problems, the basic concept of the technical scheme of the utility model is:

[0006] A vertical die casting machine comprises a support, a fixed die plate, a movable die plate and a plurality of tie rods. The tie rods are vertically installed at the top end of the support, the top ends between adjacent tie rods are connected by a tie rod connecting beam, the fixed die plate is fixedly installed at the bottom of the tie rod, the movable die plate is slidably connected with the tie rod, and the movable die plate is driven by a mold moving mechanism to move up and down along the tie rod.

[0007] The top surface of the movable die plate is provided with an opening and closing brake device and a locking device. The opening and closing brake device comprises an opening and closing brake block and an opening and closing brake drive. The locking device comprises a wedge block, a locking wedge and a locking drive. The wedge block and the locking drive are installed on the movable die plate together with the opening and closing brake drive. The outer wall of the opening and closing brake block is provided with a plurality of protruding teeth. A plurality of horizontal grooves matched with the protruding teeth are arranged on the tie rod. The opening and closing brake drive drives the opening and closing brake block to move in the direction perpendicular to the tie rod to engage the protruding teeth with the horizontal grooves.

[0008] The locking wedge is clamped by the opening and closing brake block and the wedge block and is slidably connected with the two. The locking drive drives the locking wedge to move in the direction perpendicular to the tie rod, so that the locking wedge is gradually wedged with the wedge block. The movable die plate is gradually pressed and closed to be locked at the back side of the movable die plate.

[0009] Further, a vertical sliding groove is arranged in the middle of the tie rod. The movable die plate is provided with a protruding block which extends into the sliding groove and is slidably connected with the sliding groove in the vertical direction. The wedge block is installed on the top surface of the protruding block. The horizontal grooves are arranged on the two side walls of the sliding groove.

[0010] Further, the support is a triangular truss, and the tie rods are three, which are arranged at the three corner points of the triangular truss, respectively.

[0011] Further, the support is a square truss, and the pull rods are four, respectively arranged at four corner points of the rectangle.

[0012] Further, the support is a truss, and the cross section of the truss is a regular N-polygon, and the pull rods are N, respectively arranged at the corner points of the regular N-polygon.

[0013] Further, the pull rods are M, M>3, and the M pull rods are distributed along the horizontal circumference of the top of the support.

[0014] Further, the wedge angle of the locking wedge and the wedge block is 0°-30°.

[0015] Further, the injection device is arranged on the bottom surface of the fixed mold plate.

[0016] Further, the middle part of the pull rod is provided with a transverse pull rod connecting rod, the pull rod connecting rod divides the sliding groove into an upper sliding groove and a lower sliding groove, and the lower surface of the pull rod connecting rod is a wedge surface.

[0017] The fixed mold plate is provided with a second protruding block, the second protruding block extends into the lower sliding groove and is in vertical sliding connection with the lower sliding groove, the upper surface of the second protruding block is provided with an upper mold thickness adjusting plate between the second protruding block and the pull rod connecting rod, the lower surface of the second protruding block is provided with a lower mold thickness adjusting plate between the second protruding block and the lower sliding groove bottom surface, and a clamping block matched with the wedge surface of the pull rod connecting rod is arranged between the upper mold thickness adjusting plate and the pull rod connecting rod.

[0018] Further, the sum of the thicknesses of the upper mold thickness adjusting plate and the lower mold thickness adjusting plate is not less than the tooth pitch of a tooth.

[0019] After the above technical scheme is adopted, the utility model has the following beneficial effects compared with the prior art.

[0020] 1. The structure is simple, the traditional large oil cylinder direct compression is replaced by using the inclined wedge compression, and the locking speed is improved.

[0021] 2. The weight and the up-down movement of the moving mold mechanism balance the weight and the up-down movement, and compared with the traditional large oil cylinder type, the mold opening and closing speed is improved.

[0022] 3. The inclined wedge has a force amplification effect, and the size of the oil cylinder can be greatly reduced.

[0023] The utility model provides force support through the opening and closing blocks, the locking wedge and the wedge block cooperate to exert force to realize locking, thereby replacing the traditional large oil cylinder direct compression, and the locking speed can be improved. The flow required for the movement of the traditional large oil cylinder is also large, and the locking force of the traditional vertical die casting machine is usually small, usually below 500 tons, the inclined wedge of the utility model has a force amplification effect, and the size of the oil cylinder can be greatly reduced, and the 500-ton locking force can be broken through under the same oil cylinder size.

[0024] The utility model discloses a further detailed description of the specific implementation of the utility model is made below in conjunction with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are part of the present application, serve to further understand the utility model, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model but do not constitute improper limitation on the utility model. Obviously, the drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0026] Figure 1 It is the die opening state structure schematic diagram of the utility model embodiment one;

[0027] Figure 2 It is the die closing state structure schematic diagram of the utility model embodiment one;

[0028] Figure 3 It is the utility model embodiment one convex block and draw bar structure schematic diagram;

[0029] Figure 4 It is the utility model embodiment one adjusting plate and clamping block structure schematic diagram;

[0030] Figure 5 It is the utility model embodiment one opening and closing gate device lock mould state schematic diagram;

[0031] Figure 6 It is the utility model embodiment one opening and closing gate device die opening state schematic diagram;

[0032] Figure 7 It is the utility model embodiment one lock mould inclined wedge force analysis schematic diagram;

[0033] Figure 8 It is the utility model embodiment one lock mould inclined wedge section view schematic diagram;

[0034] Figure 9 It is the utility model embodiment two structure schematic diagram;

[0035] Figure 10 It is the utility model embodiment three structure schematic diagram.

[0036] In the drawings:

[0037] 1-support;

[0038] 2-fixed plate;201-fixed die;21-second convex block;

[0039] 3-moving plate;301-moving die;31-convex block;

[0040] 4- shifting mechanism

[0041] 5- tie rod; 51- tie rod connecting beam; 501- transverse groove; 502- tie rod connecting rod;

[0042] 61- opening and closing block; 62- wedge block; 63- opening and closing block drive; 64- locking wedge; 6401- upper wedge surface; 6402- lower wedge surface; 65- locking drive;

[0043] 7- injection device; 81- upper die thickness adjusting plate; 82- lower die thickness adjusting plate; 9- clamping block.

[0044] It should be noted that the drawings and the written description are not intended to limit the scope of the present application in any way, but are merely to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0046] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0047] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] Embodiment one

[0049] As Figures 1 to 8As shown, the vertical die casting machine described in the embodiment comprises a support 1, a fixed mold plate 2, a movable mold plate 3, a plurality of pull rods 5, an opening and closing brake device, a mold locking device, and a pressure injection device 7. The pull rods 5 are vertically installed at the top end of the support 1, and the top ends between adjacent pull rods 5 are connected by a pull rod connecting beam 51 to connect the pull rods 5 into a whole, forming a frame or truss to ensure the stability of the overall stress. The fixed mold plate 2 is fixedly installed at the bottom of the pull rod 5, and the movable mold plate 3 is slidingly connected with the pull rod 5. The movable mold plate 3 is driven by a mold moving mechanism 4 to move up and down along the pull rod 5, and the movable mold plate 3 and the fixed mold plate 2 form a mold closing mechanism.

[0050] The opening and closing brake device and the mold locking device are both arranged on the top surface of the movable mold plate 3. The opening and closing brake device comprises an opening and closing brake block 61 and an opening and closing brake drive 63, and the mold locking device comprises a wedge block 62, a mold locking wedge 64, and a mold locking drive 65. The wedge block 62 and the mold locking drive 65 are both installed on the movable mold plate 3 and move synchronously with the movable mold plate 3. The outer wall of the opening and closing brake block 61 is provided with a plurality of equidistant protrusions, and the pull rod 5 is provided with a plurality of horizontal grooves 501 matching the protrusions. The opening and closing brake drive 63 drives the opening and closing brake block 61 to move in the direction perpendicular to the pull rod 5 to engage the protrusions with the horizontal grooves 501. When the protrusions are engaged with the horizontal grooves 501, the opening and closing brake block 61 will form a blocking force on the back side of the movable mold plate 3, i.e., a stress receiving mechanism of the rebounding force of the movable mold plate 3. The mold locking wedge 64 is clamped and slidingly connected with the wedge block 62. The mold locking wedge 64 and the wedge block 62 are both provided with wedge surfaces that cooperate with each other. When the mold is locked, the mold locking drive 65 drives the mold locking wedge 64 to move in the direction perpendicular to the pull rod 5, so that the mold locking wedge 64 is gradually wedged with the wedge block 62, and the movable mold plate 3 is gradually pressed and locked at the back side of the movable mold plate 3.

[0051] The opening and closing brake block 61 provides force support, the mold locking wedge 64 cooperates with the wedge block 62 to apply force, and finally keeps the mold closed, replacing the traditional mold closing to mold opening pressure. The wedge has a force amplification effect, which can greatly reduce the size of the oil cylinder, and the wedge replacement improves the mold locking speed, which can improve the mold locking speed and ensure the stability of the mold locking.

[0052] The support 1 here serves as a support, which can be selected according to requirements, and aims to provide a stable support base for the pull rod 5. In combination with the vertical arrangement of the pull rod 5, the support 1 here can adopt a truss, and in this example, the support 1 is a triangular truss, i.e., its cross section is triangular, as shown in the accompanying drawings. The pull rod 5 is also three, and the three pull rods 5 are respectively arranged at the three corners of the triangle. Since the top end of the pull rod 5 is adjacent to the pull rod connecting beam 51 for stable connection, the pull rod 5 as a whole can form a stable frame. The movable mold plate 3 and the fixed mold plate 2 are both located in the enclosed space in the middle of the pull rod 5, i.e., the pull rod 5 is located on the outer side of the mold plate in the circumferential direction, which is beneficial to the stability of the mold plate. The movable mold plate 3 here moves with the movable mold 301, the fixed mold plate 2 is provided with a fixed mold 201, and the injection device 7 is installed on the bottom surface of the fixed mold plate, which can be used for injection molding during mold clamping. The injection device 7 and injection molding are both prior art, and will not be described here.

[0053] In this example, the middle part of the pull rod 5 is provided with a vertical sliding groove, in combination with the accompanying drawings, the movable mold plate 3 is provided with a protruding block 31, the protruding block 31 extends into the sliding groove and is connected with the sliding groove in the vertical direction, the wedge block 62 is installed on the top surface of the protruding block 31, the horizontal groove 501 is arranged on the two side walls of the sliding groove, and the mold moving mechanism 4 can be installed in the sliding groove, which can adopt a screw rod, a telescopic rod, a hydraulic rod, etc. When the movable mold plate 3 moves up and down, the protruding block 31 is guided and limited to move by the sliding groove, which ensures the stable movement of the movable mold plate. When the movable mold plate 3 needs to be clamped, the mold is clamped between the protruding block 31 and the sliding groove. The rigidity of the pull rod 5 itself can guarantee the reliability of the reverse supporting force, and the engagement adjustment of the protrusion and the horizontal groove 501 can be fine to a tooth pitch, which is beneficial to the adjustment of different mold thicknesses. It should be noted here that the number of horizontal grooves 501 should be greater than the number of protrusions, so as to guarantee the engagement at different positions, and thus facilitate the adaptation to different mold thicknesses.

[0054] When the mold thickness changes, the locking position of the protrusion will also change. For example, the thickness change of the mold is C, when C is equal to the multiple of the distance between the protrusion or the horizontal groove, the protrusion and the horizontal groove can still be engaged; when C is not equal to the multiple of the distance between the protrusion or the horizontal groove, the locking position needs to be adjusted. One is to fix the position of the pull rod and adjust the position of the fixed mold plate and the movable mold plate, and the other is to fix the position of the fixed mold plate and adjust the position of the pull rod. Both ways can be used. In this example, the first way is adopted, i.e., the position of the pull rod is fixed and the position of the fixed mold plate is adjusted. The specific implementation scheme is as follows:

[0055] A horizontal connecting rod 502 is provided in the middle of the pull rod 5, which divides the sliding groove into an upper sliding groove and a lower sliding groove. The lower surface of the connecting rod 502 is a wedge surface. The fixed template 2 is provided with a second protrusion 31, which extends into the lower sliding groove and can slide vertically therewith. An upper mold thickness adjustment plate 81 is placed between the upper surface of the second protrusion 31 and the connecting rod 502, and a lower mold thickness adjustment plate 82 is placed between the lower surface of the second protrusion 31 and the bottom surface of the lower sliding groove. A clamping block 9 is provided between the upper mold thickness adjustment plate 81 and the connecting rod 502, which matches and weds the wedge surface of the connecting rod 502. The purpose of wedging the clamping block 9 is to fix the fixed template 2. Both the upper and lower mold thickness adjustment plates can be replaced with different thicknesses. The clamping block 9 can be used to quickly lock the fixed template 2 after replacement. (See attached diagram) Figure 4 The diagram illustrates that the fixed template 2, via the second protrusion 31 and the pull rod, forms a limiting movement, allowing adjustment in the vertical direction. For example, the thickness of the upper mold thickness adjustment plate 81 is A, and the thickness of the lower film thickness adjustment plate 82 is B. The adjustable thickness range is A+B, where A+B must be greater than the spacing of a tooth or transverse groove (different thickness models can be selected according to film thickness adjustment requirements). When the mold thickness change C is not equal to a multiple of the tooth or transverse groove spacing, the tooth can be aligned with the transverse groove by replacing the upper and lower mold thickness adjustment plates with different thicknesses. For example, if a tooth spacing is defined as M, and C is 0.3M, meaning the mold thickness increases by 0.3M and the tooth moves upward by 0.3M, then reducing B by 0.3M and increasing A by 0.3M effectively moves the fixed template 2 downward by 0.3M. This can be considered as the mold moving downward by 0.3M and the tooth moving downward by 0.3M, thus aligning the tooth with the transverse groove.

[0056] Referring to the attached diagram, three opening and closing devices are set for the three pull rods 5, one for each pull rod 5. The engagement of the teeth on each pull rod 5 with the transverse groove 501 ensures uniform reverse support force, thereby ensuring uniform and stable mold locking force. Referring to the attached diagram, in this example, the top surface of the mold locking wedge 64 is a plane, and the bottom surface is a wedge surface. The opening and closing block 61 moves along the top plane of the mold locking wedge 64. The wedge surface of the wedge block 62 engages with the bottom surface (wedge surface) of the mold locking wedge 64. In the mold-opening state, the retraction stroke of the opening and closing block 61 is greater than the length of the sliding groove. During retraction, the opening and closing block 61 disengages from the sliding groove. During mold locking, the teeth of the opening and closing block 61 align and engage with the transverse groove 501 at a certain position, and the mold locking wedge 64 gradually weds with the wedge block 62 to achieve mold locking.

[0057] When the clamping wedge 64 and wedge block 62 are tightened, they stop the moving template 3 and prevent it from retracting. The angle of the inclined surfaces of the clamping wedge 64 and wedge block 62 affects the force applied. Figure 7 As shown, the formula for calculating clamping force is:

[0058]

[0059] in: For the thrust of the mold-locking drive 65 device, The locking force generated by a single locking wedge 64 For the number of mold-locking components, The angle of friction between the wedge and the column or moving mold mounting plate. The friction angle between the wedge surfaces. The wedge angle of the mold-locking wedge is 64. The smaller the value, the greater the force amplification effect of the mold-locking drive 65.

[0060] As can be seen from the above formula, the magnitude of the clamping force / opening force can be freely set by changing the side clamping / opening pressure, the number of clamping / opening components, and the wedge angle of wedge 62 to adapt to different die-casting processes. The clamping thrust is provided by a drive source, which can be provided by a hydraulic cylinder or by a motor providing thrust through a lead screw, etc. The clamping force is adjusted by changing the motor torque to change the thrust. In practical applications, the number of clamping devices generally remains constant, so the clamping force is adjusted by adjusting the wedge angle. Generally, the adjustment range of the wedge angle is 0° to 30°. The smaller the angle, the greater the precision of the clamping force fine-tuning during the locking process. For molds of different thicknesses, it is necessary to adjust the mold closing position. There are two methods: one is to adjust the thickness of the clamping wedge 64 or wedge 62, and the other is to change the locking position.

[0061] Combined with appendix Figure 8 As shown, the locking wedge 64 and the wedge block 62 are respectively provided with two pairs of wedge surfaces (only the upper wedge surface 6401 and the lower wedge surface 6402 of the locking wedge 64 are marked in the figure). When locking the mold, the lower wedge surface contacts and transmits pressure, while the upper wedge surface leaves a small gap. When the mold is opened with force, the upper wedge surface contacts and transmits tension, while the lower wedge surface leaves a small gap. After the mold is opened with force, the mold moving mechanism 4 continues to drive the template 3 to move upward to open the mold.

[0062] Example 2

[0063] like Figure 9 As shown, the difference between this embodiment and the first embodiment described above is that the support 1 in this example is a square truss (not shown in the attached drawings), and there are four tie rods 5, which are respectively set at the four corner points of the rectangle. Correspondingly, there are four opening and closing devices, each corresponding to a tie rod 5. Referring to the attached drawings, the four opening and closing drive 63 and the mold locking drive 65 form a cross shape. Preferably, the opening and closing drive 63 and the mold locking drive 65 of the four opening and closing devices can be linked or use the same drive mechanism, which can be selected according to actual needs. This is more conducive to controlling the synchronization of the opening and closing devices, and thus to the uniformity of force during mold locking or opening.

[0064] Example 3

[0065] likeFigure 10 The difference between the present embodiment and the above-mentioned embodiment one is that the four pull rods 5 are arranged in two rows, two in each row, and the support 1 can adopt a truss with a rectangular cross section. As shown in the drawings, the two pull rods 5 in the front row and the two pull rods 5 in the rear row are each provided with an open-close gate device, and the open-close gate drive 63 and the mold locking drive 65 in the same row can be coaxial, preferably, the same drive can be adopted, that is, the driving mechanism is synchronously driven on the left and right sides, for example, the mold locking drive 65 adopts a hydraulic cylinder, and the hydraulic cylinder has a piston rod with the same structure on the left and right sides, and the piston rods are coaxial, and when the hydraulic cylinder works, the left and right sides are synchronously extended and retracted, and the same pressure is applied, thereby ensuring the synchronization of the left and right sides.

[0066] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with reference to the preferred embodiment, it is not intended to limit the present application, and any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, and any simple modification, equivalent change and modification of the above-mentioned embodiment according to the technical essence of the present application still belong to the scope of the present application.

Claims

1. A vertical die casting machine, comprising a support (1), a fixed mold plate (2), a movable mold plate (3), and a plurality of tie rods (5), the tie rods (5) being vertically installed at the top end of the support (1), the top ends between adjacent tie rods (5) being connected by a tie rod connecting beam (51), the fixed mold plate (2) being fixedly installed at the bottom of the tie rods (5), and the movable mold plate (3) being slidably connected with the tie rods (5), the movable mold plate (3) being driven by a mold moving mechanism (4) to move up and down along the tie rods (5), characterized in that: the top surface of the movable mold plate (3) is provided with an opening and closing gate device and a mold locking device, the opening and closing gate device comprises an opening and closing gate block (61) and an opening and closing gate drive (63), the mold locking device comprises a wedge block (62), a mold locking wedge (64), and a mold locking drive (65), the wedge block (62), the mold locking drive (65), and the opening and closing gate drive (63) are all installed on the movable mold plate (3), the outer wall of the opening and closing gate block (61) is provided with a plurality of protruding teeth, the tie rod (5) is provided with a plurality of horizontal grooves (501) matching the protruding teeth, and the opening and closing gate drive (63) drives the opening and closing gate block (61) to move in a direction perpendicular to the tie rod (5) to engage the protruding teeth with the horizontal grooves (501); the mold locking wedge (64) is clamped and slidably connected with the opening and closing gate block (61) and the wedge block (62), and the mold locking drive (65) drives the mold locking wedge (64) to move in a direction perpendicular to the tie rod (5), so that the mold locking wedge (64) is gradually wedged with the wedge block (62), and the movable mold plate (3) is gradually pressed and locked at the back side of the movable mold plate (3). the middle part of the tie rod (5) is provided with a vertical sliding groove, the movable mold plate (3) is provided with a protruding block (31), the protruding block (31) extends into the sliding groove and is slidably connected with the sliding groove in the vertical direction, the wedge block (62) is installed on the top surface of the protruding block (31), and the horizontal grooves (501) are arranged on the two side walls of the sliding groove.

2. A vertical die casting machine according to claim 1, characterized in that: the support (1) is a triangular truss, and the tie rods (5) are three, which are respectively arranged at the three corner points of the triangular truss.

3. A vertical die casting machine according to claim 2, characterized in that: the support (1) is a square truss, and the tie rods (5) are four, which are respectively arranged at the four corner points of the square.

4. A vertical die casting machine according to claim 2, characterized in that: the support (1) is a truss, the cross section of which is a regular N-polygon, and the tie rods (5) are N, which are respectively arranged at the corner points of the regular N-polygon.

5. A vertical die casting machine according to claim 2, characterized in that: the tie rods (5) are M, M > 3, and the M tie rods (5) are distributed along the horizontal circumference of the top of the support (1).

6. A vertical die casting machine according to claim 2, characterized in that: the wedge angle between the mold locking wedge (64) and the wedge block (62) is 0°-30°.

7. A vertical die casting machine according to claim 1, characterized in that: a shot device (7) is further included, and the shot device (7) is installed on the bottom surface of the fixed mold plate (2).

8. A vertical die casting machine according to claim 1, characterized in that: the middle part of the tie rod (5) is provided with a horizontal tie rod connecting rod (502), the tie rod connecting rod (502) divides the sliding groove into an upper sliding groove and a lower sliding groove, and the lower surface of the tie rod connecting rod (502) is a wedge surface.

9. A vertical die casting machine according to claim 2, characterized in that: ​ The fixed mold plate (2) is provided with a second protruding block (31) which extends into the lower sliding groove and is in sliding connection with the lower sliding groove in the vertical direction, the upper surface of the second protruding block (31) is provided with an upper mold thickness adjusting plate (81) between the upper surface and the pull rod connecting rod (502), the lower surface is provided with a lower mold thickness adjusting plate (82) between the lower surface and the bottom surface of the lower sliding groove, and a clamping block (9) is arranged between the upper mold thickness adjusting plate (81) and the pull rod connecting rod (502) and is matched and tightly clamped with the wedge surface of the pull rod connecting rod (502).

10. A vertical die casting machine according to claim 9, characterized in that: The sum of the thicknesses of the upper mold thickness adjusting plate (81) and the lower mold thickness adjusting plate (82) is not less than the tooth pitch of a protruding tooth.

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