Stone plate cutting machine

Abstract

The invention provides a stone plate cutting machine which comprises a cutting table top, a door-shaped support and an electric circular saw, I-shaped steel is adopted on the two sides of the door-shaped support, C-shaped steel is adopted on the upper side of the door-shaped support, a sliding block is connected to the C-shaped steel, the C-shaped steel is further provided with an automatic pressing mechanism, and the automatic pressing mechanism comprises a pressing plate, a first hydraulic cylinder, a second hydraulic cylinder and a sleeve. The first hydraulic cylinder is connected with a first hydraulic disc, the first hydraulic disc is connected with a push rod, the second hydraulic cylinder is connected with a hard connecting pipe and a second hydraulic disc, and the sleeve is connected with a sliding disc. By arranging the automatic pressing mechanism, when the electric circular saw is located at any end of the C-shaped steel, the pressing plate can automatically ascend to loosen a stone plate, so that feeding is convenient, when the electric circular saw moves towards the other end of the C-shaped steel to cut the stone plate, the pressing plate can automatically press the stone plate before cutting, and therefore the stone plate is prevented from loosening in the cutting process.

Description

Technical Field

[0001] The invention belongs to the technical field of stone processing, and in particular relates to a stone slab cutting machine. Background Art

[0002] Slate is a commonly used building material, mostly used for paving roads or walls. It is generally made of marble and granite. During the slate processing process, it is necessary to cut a long slate into several small slates of equal length for easy transportation and use. There are many types of slate cutting devices currently available, such as gantry cutters and manual cutting saws. However, in actual use, these cutting devices have the following shortcomings: ① When cutting, in order to prevent the stone slab from loosening, it needs to be manually pressed and fixed, which is inconvenient to use; ② After cutting, the material needs to be pushed in manually, which is not convenient to use and has certain safety risks. Summary of the Invention

[0003] The purpose of the present invention is to provide a stone slab cutting machine for solving the above-mentioned problems.

[0004] In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows: A slate cutting machine includes a cutting table, a gate-shaped bracket, and an electric circular saw. The gate-shaped bracket has I-beams on both sides and is fixed to the cutting table. The upper side of the gate-shaped bracket uses C-shaped steel and is connected and fixed to the I-beams on both sides. A slider is slidably connected to the inner side of the C-shaped steel. A transverse reciprocating drive mechanism is also installed on the top of the C-shaped steel. The transverse reciprocating drive mechanism is used to drive the slider to reciprocate inside the top of the gate-shaped bracket. A connecting piece is provided between the electric circular saw and the slider. The cutting table is provided with a cutting groove corresponding to the electric circular saw, the cutting table located in front of the electric circular saw is the discharge end, the cutting table located behind the electric circular saw is the feed end, and a plurality of rollers are installed in the middle of the cutting table; The C-shaped steel is also provided with an automatic pressing mechanism, which includes a pressing plate, a first hydraulic cylinder, a second hydraulic cylinder and a sleeve. The pressing plate is located at the feeding end. There are two first hydraulic cylinders fixed side by side in the middle of the C-shaped steel. The inner walls of the tops of the two first hydraulic cylinders are connected to the first hydraulic disc through a first spring, and the lower ends of the two first hydraulic discs are connected to the pressing plate through a push rod. There are two second hydraulic cylinders and they are respectively fixed at both ends of the C-shaped steel. The second hydraulic cylinder is connected to a hard connecting pipe at one end close to the first hydraulic cylinder, and the hard connecting pipe is communicated with the top of the first hydraulic cylinder. There are two sleeves and they are respectively fixed at both ends of the inner side of the C-shaped steel. A U-shaped connecting rod is commonly provided between the second hydraulic cylinder and the sleeve on the same side. A second hydraulic disc is slidably connected inside the second hydraulic cylinder, and a sliding disc is slidably connected inside the sleeve. One end of the U-shaped connecting rod is connected and fixed to the second hydraulic disc and the other end is connected and fixed to the sliding disc. A second spring is fixedly connected between the sliding disc and the sleeve. A through hole is provided on the facing sides of the two sleeves, and cross bars are fixedly connected on both sides of the slider, and the cross bars match the through holes.

[0005] Preferably, the first hydraulic cylinder and the second hydraulic cylinder have the same specifications, the first hydraulic cylinder, the second hydraulic cylinder and the hard connecting pipe are filled with hydraulic oil, and the spring coefficient k of the first spring and the spring coefficient k' of the second spring satisfy the relationship: k<k'<2k.

[0006] Preferably, the C-shaped steel is provided with a strip groove running through it from top to bottom, the horizontal reciprocating drive mechanism includes a motor, a threaded screw and a connecting block, the connecting member is a first vertical connecting rod, the lower end of the first vertical connecting rod is fixedly connected to the electric circular saw, the upper end of the first vertical connecting rod passes through the strip groove and is fixedly connected to the slider and the connecting block in turn, the motor is installed on the top of the C-shaped steel and its output shaft is fixedly installed with the threaded screw, the threaded screw passes through the connecting block and is threadedly connected to the connecting block.

[0007] Preferably, the top of the C-shaped steel is further provided with a first mounting seat corresponding to one end of the threaded screw.

[0008] Preferably, a limiting mechanism is also provided at the feed end of the cutting table, and the limiting mechanism includes two second mounting seats, two screws and two limiting blocks. The two second mounting seats are symmetrically installed on both sides of the cutting table, and the two screws respectively pass through the second mounting seats on both sides and are threadedly connected to the second mounting seats. The facing ends of the two screws are respectively rotatably connected to the two limiting blocks, and the bottoms of the two limiting blocks are in contact with any one of the rotating rollers.

[0009] Preferably, both ends of the screw are provided with manual wheels.

[0010] Preferably, an automatic feeding mechanism is further included, the automatic feeding mechanism including a guide rod, an inclined guide rail, a connecting seat, an air pressure component and an inflation component, the guide rod is mounted and fixed on the pressure plate, the lower end of the inclined guide rail is obliquely connected to the connecting seat and can be rotatably fixed, the height difference between the guide rod and the lower end of the inclined guide rail is equal to the maximum movement distance of the pressure plate, the cutting table is slidably connected to a connecting bracket, the connecting bracket is fixedly connected to the connecting seat, the guide rod extends and is inserted into the inclined guide rail, and a vertical air duct is opened inside the connecting seat; The pneumatic assembly includes an upper plate, a membrane and a lower plate. The upper plate is fixedly connected to the bottom of the connecting seat and is connected to the vertical airway. The upper plate and the lower plate form a closed structure through the membrane. The bottom of the lower plate is made of rubber with a high friction coefficient. The inflation assembly includes a piston cylinder fixed to one of the first hydraulic cylinders, a piston disk is slidably connected to the inside of the piston cylinder, a second vertical connecting rod is fixedly connected to the bottom of the piston disk, the lower end of the second vertical connecting rod is fixed to the guide rod, a first one-way valve is installed on the upper side of the piston cylinder, a second one-way valve corresponding to the vertical airway is installed on the top of the connecting seat, an air pipe is connected between the top of the piston cylinder and the second one-way valve, and the air pipe is provided with a section of flexible hose.

[0011] Preferably, the automatic feeding mechanism is also provided with an exhaust component, which includes a sliding rod that slides horizontally and passes through the connecting seat, and a through groove is provided at one end of the inclined guide rail close to the connecting seat, and one end of the sliding rod passes through the through groove and enters into the inclined guide rail, and the other end of the sliding rod is elastically connected to the connecting seat by a third spring; the outer diameter of the sliding rod is smaller than the inner diameter of the vertical airway, and an L-shaped exhaust channel is provided inside the sliding rod, and the sliding rod is pushed under the elastic force of the third spring so that the vertical section of the L-shaped exhaust channel and the connecting seat are in a closed state.

[0012] Preferably, the membrane is also equipped with a manual exhaust valve.

[0013] Preferably, a turntable is fixedly connected to one side of the inclined guide rail, and the turntable is rotatably connected to the connecting seat. A plurality of limiting holes are opened on the side of the turntable, and the connecting seat is installed with a locking bolt. By screwing the locking bolt into different limiting holes, the inclined guide rail can be tilted at different angles.

[0014] Compared with the existing technology, the beneficial effects of the present invention are: The present invention is provided with an automatic pressing mechanism. When the electric circular saw is at either end of the C-shaped steel, the pressing plate can automatically rise to loosen the stone slab, thereby facilitating feeding. When the electric circular saw moves toward the other end of the C-shaped steel to cut the stone slab, the pressing plate can automatically press the stone slab before cutting, thereby preventing the stone slab from loosening during the cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of Embodiment 1 of the present invention; Figure 2 for Figure 1 A magnified schematic diagram of the structure at A; Figure 3 This is a schematic diagram of a partial cross-sectional structure of the electric circular saw according to the first embodiment of the present invention when it is located at one end of a C-shaped steel; Figure 4 for Figure 3 A magnified schematic diagram of the structure at B; Figure 5 for Figure 3 A magnified schematic diagram of the structure at C; Figure 6 for Figure 3 A magnified schematic diagram of the structure at D; Figure 7 This is a schematic diagram of a partial cross-section of the structure of the crossbar of the first embodiment of the present invention when it is disengaged from the sleeve and the electric circular saw enters the position for cutting stone slabs; Figure 8 for Figure 7 A magnified schematic diagram of the structure at E; Figure 9 for Figure 7 A magnified schematic diagram of the structure at F; Figure 10 This is a structural diagram of embodiment 2 of the present invention; Figure 11 for Figure 10 A magnified schematic diagram of the structure at G; Figure 12 This is a schematic diagram of a partial cross-sectional structure of a second embodiment of the present invention; Figure 13 for Figure 12 A magnified schematic diagram of the structure at H; Description of reference numerals: Cutting table 100, portal bracket 101, electric circular saw 102, I-beam 103, C-beam 104, strip groove 1041, slider 105, crossbar 1051, cutting groove 106, roller 107, pressing plate 110, first hydraulic cylinder 111, first spring 1111, first hydraulic disc 1112, push rod 1113, second hydraulic cylinder 112, hard connecting pipe 1121, second hydraulic disc 1122, sleeve 113, sliding disc 1131, second spring 1132, through hole 1133, U-shaped connecting rod 114, motor 120, threaded screw 121, connecting block 122, first vertical connecting rod 123, first mounting seat 124, second mounting seat 130, screw 131, limit block 132, manual rotary wheel 133; Guide rod 200, inclined guide rail 201, connecting seat 202, connecting bracket 203, vertical air duct 204, upper plate 205, membrane 206, lower plate 207, piston cylinder 210, piston disc 211, second vertical connecting rod 212, first one-way valve 213, second one-way valve 214, air pipe 215, hose 216, sliding rod 220, third spring 221, L-shaped exhaust channel 222, turntable 230, limiting hole 231, locking bolt 232. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0017] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance; in addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or a communication between the internal parts of two components. For those skilled in the art, the specific meanings of the terms in the present invention can be understood according to specific circumstances.

[0018] Example 1 like Figures 1 to 9The slate cutting machine shown includes a cutting table 100, a gantry support 101, and an electric circular saw 102. I-beams 103 are used on both sides of the gantry support 101 and are fixed to the cutting table 100. C-shaped steel 104 is used on the upper side of the gantry support 101 and is connected and fixed to the I-beams 103 on both sides. A slider 105 is slidably connected to the inner side of the C-shaped steel 104. A transverse reciprocating drive mechanism is also installed on the top of the C-shaped steel 104. The transverse reciprocating drive mechanism is used to drive the slider 105 to reciprocate inside the top of the gantry support 101. A connecting member is provided between the electric circular saw 102 and the slider 105. The cutting table 100 is provided with a cutting groove 106 corresponding to the electric circular saw 102. The cutting table 100 is located in front of the electric circular saw 102 as the discharge end, and the cutting table 100 is located behind the electric circular saw 102 as the feed end. A plurality of rollers 107 are installed in the middle of the cutting table 100. The C-shaped steel 104 is also provided with an automatic pressing mechanism, which includes a pressing plate 110, a first hydraulic cylinder 111, a second hydraulic cylinder 112 and a sleeve 113. The pressing plate 110 is at the feeding end. There are two first hydraulic cylinders 111 fixed side by side in the middle of the C-shaped steel 104. The top inner walls of the two first hydraulic cylinders 111 are fixedly connected to the first hydraulic disc 1112 through the first spring 1111. The lower ends of the two first hydraulic discs 1112 are fixedly connected to the pressing plate 110 with a push rod 1113. There are two second hydraulic cylinders 112 and they are fixed at both ends of the C-shaped steel 104 respectively. One end of the second hydraulic cylinder 112 close to the first hydraulic cylinder 111 is connected to a hard connecting pipe 1121, and the hard connecting pipe 1121 is connected to the top of the first hydraulic cylinder 111. There are two sleeves 113 and they are fixed at both ends of the inner side of the C-shaped steel 104 respectively. A U-shaped connecting rod 114 is provided between the second hydraulic cylinder 112 and the sleeve 113 on the same side. The second hydraulic cylinder 112 slides inside. A second hydraulic disc 1122 is connected, a sliding disc 1131 is slidably connected inside the sleeve 113, one end of the U-shaped connecting rod 114 is fixedly connected to the second hydraulic disc 1122 and the other end is fixedly connected to the sliding disc 1131, a second spring 1132 is fixedly connected between the sliding disc 1131 and the sleeve 113, and a through hole 1133 is opened on the side facing each other of the two sleeves 113. Both sides of the slider 105 are fixedly connected to a cross bar 1051, and the cross bar 1051 matches the through hole 1133. Figure 8 As shown; The first hydraulic cylinder 111 and the second hydraulic cylinder 112 have the same specifications. The first hydraulic cylinder 111, the second hydraulic cylinder 112 and the hard connecting pipe 1121 are filled with hydraulic oil. The spring coefficient k of the first spring 1111 and the spring coefficient k' of the second spring 1132 satisfy the relationship: k<k'<2k.

[0019] The I-beams 103 on both sides and the C-shaped steel 104 on the upper side together form a gate-shaped bracket 101. The space inside the C-shaped steel 104 is used to slide a slider 105 therein. The slider 105 is connected to the electric circular saw via a connecting piece. Therefore, the slider 105 can be driven to slide by a transverse reciprocating drive mechanism, so that the electric circular saw 102 can reciprocate to cut the stone. During the specific cutting, the device is as follows Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 as well as Figure 6 The status shown is as follows: ① The horizontal reciprocating drive mechanism drives the slider 105 to move to one end of the C-shaped steel 104, so that the electric circular saw 102 stops at the side of the cutting table 100; ② The crossbar 1051 on one side of the slider 105 passes through the through hole 1133 of the sleeve 113 on the side of the C-shaped steel 104 and is inserted into the sleeve 113. The crossbar 1051 on the side pushes the sliding plate 1131 inside the sleeve 113 on the side, overcoming the elastic force of the second spring 1132. As a result, under the transmission of the U-shaped connecting rod 114, the second hydraulic plate 1122 inside the second hydraulic cylinder 112 moves synchronously, and at this time, negative pressure is formed in the second hydraulic cylinder 112. Since the first hydraulic cylinder 111 and the second hydraulic cylinder 112 have the same specifications, it can be seen that when the hydraulic oil in the first hydraulic cylinder 111 and the second hydraulic cylinder 112 is transferred, the hydraulic oil pushes the first hydraulic disc 1112 and the second hydraulic disc 1122 to the same amount of movement, thereby making the deformation of the first spring 1111 and the second spring 1132 the same. Furthermore, since the second spring 1132 on this side is deformed by the external thrust of the crossbar 1051 of the slider 105 driven by the transverse reciprocating drive mechanism, and the spring coefficient k of the first spring 1111 and the spring coefficient k' of the second spring 1132 satisfy the relationship: k<k'<2k, under the joint action of the two first springs 1111 of the first hydraulic cylinder 111, the force will be greater than the force of the second spring 1132 in the sleeve 113 on the other side of the C-shaped steel 104. Therefore, the two first springs 1111 are deformed to pull up the two first hydraulic discs 1112 respectively, so that the hydraulic oil in the two first hydraulic cylinders 111 is respectively collected into the second hydraulic cylinders 112 on both sides, and the two push rods 1113 pull the pressure plate 110 to the highest position; In the initial state, the stone slab to be cut is put in from the feed end, and the stone slab is pushed and transported forward by the multiple rollers 107 of the cutting table until the distance between the front end of the stone slab and the cutting groove 106 reaches the required cutting length. Then the cutting begins, and the electric circular saw 102 is driven by the horizontal reciprocating drive mechanism to move from one end of the C-shaped steel 104 to the other end. During this process, the device will first enter the following Figures 7 to 9 The status shown is as follows: ① The transverse reciprocating drive mechanism drives the slider 105 to move toward the other end of the C-shaped steel 104, so that the crossbar 1051 of the slider 105 gradually disengages from the sleeve 113 on this side. In this embodiment, after the crossbar 1051 of the slider 105 disengages from the sleeve 113, the slider 105 drives the electric circular saw 102 to enter the position for cutting the stone slab. Since the spring coefficient k of the first spring 1111 and the spring coefficient k' of the second spring 1132 satisfy the relationship: k<k'<2k, the force of the second spring 1132 is greater than the force of the first spring 1111, so that the U-shaped connecting rods 114 on both sides re-press the hydraulic oil in the second hydraulic cylinder 112 into the first hydraulic cylinder 111, so that the push rod 1113 in the first hydraulic cylinder 111 pushes the pressure plate 110 downward, pressing the stone slab against the cutting table 100, and preventing the stone slab from loosening during the cutting process; ② Until the electric circular saw 102 moves completely to the other end of the C-shaped steel 104, the stone slab has been cut. At the same time, as mentioned above, the push rod 1113 will rise again, so that the pressure plate 110 no longer presses the stone slab against the cutting table, and people can push the stone slab to feed for the next cutting.

[0020] The present invention is provided with an automatic pressing mechanism. When the electric circular saw is at either end of the C-shaped steel, the pressing plate can automatically rise to loosen the stone slab, thereby facilitating feeding. When the electric circular saw moves toward the other end of the C-shaped steel to cut the stone slab, the pressing plate can automatically press the stone slab before cutting, thereby preventing the stone slab from loosening during the cutting process.

[0021] Furthermore, the transverse reciprocating drive mechanism in this embodiment is further described as follows: Figure 1 and Figure 3As shown, the C-shaped steel 104 is provided with a strip groove 1041 running through it from top to bottom, and the horizontal reciprocating drive mechanism includes a motor 120, a threaded screw 121 and a connecting block 122. The connecting piece is a first vertical connecting rod 123. The lower end of the first vertical connecting rod 123 is fixedly connected to the electric circular saw 102, and the upper end of the first vertical connecting rod 123 passes through the strip groove 1041 and is fixedly connected to the slider 105 and the connecting block 122 in turn. The motor 120 is installed on the top of the C-shaped steel 104 and its output shaft is fixedly installed with the threaded screw 121. The threaded screw 121 passes through the connecting block 122 and is threadedly connected to the connecting block 122. The top of the C-shaped steel 104 is also provided with a first mounting seat 124 corresponding to the other end of the threaded screw 121.

[0022] By means of the provided strip groove 1041 and the provided first vertical connecting rod 123, the slider 105, the electric circular saw 102 and the connecting block 122 form a whole. When in use, the output shaft of the motor 120 rotates, causing the threaded rod 121 to rotate. Since the threaded rod 121 passes through the connecting block 122 and is threadedly connected to the connecting block 122, the connecting block 122 can move relative to the threaded rod 121. In this embodiment, a switch for controlling the direction of the output shaft of the motor 120 can be provided. The switch is used to control the direction of the output shaft of the motor 120, thereby enabling the connecting block 122 to reciprocate, thereby driving the electric circular saw 102 to reciprocate along the C-shaped steel 104 to cut the stone slab. At the same time, the other end of the threaded screw rod 121 is rotatably mounted on the first mounting seat 124 through the first mounting seat 124 , thereby making the installation of the threaded screw rod 121 more stable.

[0023] Furthermore, the position limitation of the stone slab in this embodiment is further explained, as shown in FIG. Figures 1 to 2 As shown, a limiting mechanism is further provided at the feed end of the cutting table 100, which includes two second mounting seats 130, two screws 131, and two limiting blocks 132. The two second mounting seats 130 are symmetrically mounted on both sides of the cutting table 100. The two screws 131 respectively penetrate the second mounting seats 130 on both sides and are threadedly connected to the second mounting seats 130. The facing ends of the two screws 131 are respectively rotatably connected to the two limiting blocks 132. The bottoms of the two limiting blocks 132 abut against any one of the rollers 107. The ends of the two screw rods 131 are each provided with a manual rotating wheel 133 .

[0024] After placing the stone slab on the roller 107 of the cutting table 100, the two manual wheels 133 are rotated respectively to make the two screws 131 rotate relative to the two second mounting seats 130. Since the screw 131 is threadedly connected to the second mounting seat 130, the screw 131 can move relative to the second mounting seat 130, thereby pushing the limit blocks 132 on both sides to limit the two sides of the stone slab. In addition, on the basis of pressing the stone slab from above by the pressure plate 110, the two sides of the stone slab are further limited by the limit blocks 132 on both sides, further ensuring that the stone slab will not loosen during cutting.

[0025] Example 2 is a further improvement made on the basis of Example 1 in order to facilitate automatic feeding and reduce manual labor. Figures 10 to 13 As shown, it also includes an automatic feeding mechanism, which includes a guide rod 200, an inclined guide rail 201, a connecting seat 202, a pneumatic component and an inflation component. The guide rod 200 is fixed to the pressing plate 110, and the lower end of the inclined guide rail 201 is obliquely connected to the connecting seat 202 and can be rotatably fixed. The height difference between the guide rod 200 and the lower end of the inclined guide rail 201 is equal to the maximum movement distance of the pressing plate 110. The cutting table 100 is slidably connected to the connecting bracket 203, and the connecting bracket 203 is fixedly connected to the connecting seat 202. The guide rod 200 extends and is inserted into the inclined guide rail 201. A vertical air channel 204 is opened inside the connecting seat 202. like Figure 11-12 As shown, the pneumatic assembly includes an upper plate 205, a membrane 206 and a lower plate 207. The upper plate 205 is fixedly connected to the bottom of the connecting seat 202 and is connected to the vertical air channel 204. The upper plate 205 and the lower plate 207 form a closed structure through the membrane 206. The bottom of the lower plate 207 is made of rubber with a high friction coefficient. The inflation assembly includes a piston cylinder 210 fixed to one of the first hydraulic cylinders 111, a piston disc 211 slidably connected inside the piston cylinder 210, a second vertical connecting rod 212 fixedly connected to the bottom of the piston disc 211, the lower end of the second vertical connecting rod 212 is fixed to the guide rod 200, a first one-way valve 213 is installed on the upper side of the piston cylinder 210, a second one-way valve 214 corresponding to the vertical airway 204 is installed on the top of the connecting seat 202, an air pipe 215 is connected between the top of the piston cylinder 210 and the second one-way valve 214, and the air pipe 215 is provided with a section of flexible hose 216; The automatic feeding mechanism is also provided with an exhaust assembly, which includes a slide rod 220 that slides horizontally and passes through the connecting seat 202. A through slot is provided at one end of the inclined guide rail 201 close to the connecting seat 202. One end of the slide rod 220 passes through the through slot and enters the inclined guide rail 201. The other end of the slide rod 220 is elastically connected to the connecting seat 202 by a third spring 221. The outer diameter of the slide rod 220 is smaller than the inner diameter of the vertical airway 204. An L-shaped exhaust channel 222 is provided inside the slide rod 220. The slide rod 220 is pushed under the elastic force of the third spring 221 so that the vertical section of the L-shaped exhaust channel 222 and the connecting seat 202 are in a closed state. The membrane 206 is also equipped with a manual exhaust valve.

[0026] The connecting bracket 203 is slidably connected to the cutting table 100, and the connecting base 202 is fixed to the connecting bracket 203, so that the connecting base 202 is at a constant height position and can move horizontally in the direction of loading and unloading; When the device is in Figure 10 As shown, when the electric circular saw 102 is at one end of the C-shaped steel 104, it can be seen from the actions in Example 1 that: The push rod 1113 drives the pressure plate 110 to be raised to the highest position, so that the guide rod 200 is on the higher side of the inclined guide rail 201. The second vertical connecting rod 212 connected to the guide rod 200 pushes the piston plate 211 to move upward, and the gas in the piston cylinder 210 passes through the air pipe 215, the second one-way valve 214 and the vertical air channel 204 of the connecting seat 202 in sequence, and enters the enclosed space formed by the upper plate 205, the lower plate 207 and the membrane 206. At the same time as the above, since the guide rod 200 is located on the higher side of the inclined guide rail 201, the elastic force of the third spring 221 allows the slide rod 220 to pass through the through slot at the lower end of the inclined guide rail 201 and extend into the inclined guide rail 201. At this time, the vertical section of the L-shaped exhaust channel 222 opened by the slide rod 220 is closed by the connecting seat 202, and the gas in the piston cylinder 210 can be filled into the closed space formed by the upper plate 205, the lower plate 207 and the membrane 206, so that the air pressure in the closed space formed by the upper plate 205, the lower plate 207 and the membrane 206 increases, thereby pressing the lower plate 207 against the surface of the stone slab. When the horizontal reciprocating drive mechanism drives the electric circular saw 102 to move from one end of the C-shaped steel 104 to the other end, it can be seen from the action in Example 1 that: When the electric circular saw 102 enters the position of cutting the stone slab, the push rod 1113 will move downward, so that the pressure plate 110 at the lower end of the push rod 1113 presses the stone slab tightly. When the pressure plate 110 moves downward, the guide rod 200 moves downward synchronously, and the second vertical connecting rod 212 pulls the piston disc 211 to move downward. The outside air re-enters the piston cylinder 210 through the first one-way valve 213. At the same time, under the guidance of the guide rod 200 and the inclined guide rail 201, the inclined guide rail 201 is 201 moves in the direction of discharging, and the moving distance is the horizontal span size of the inclined guide rail 201, and the connecting seat 202 fixed with the inclined guide rail 201 is made to move in the direction of discharging. In this process, since the lower plate 207 is pressed tightly against the surface of the stone slab, and the bottom of the lower plate 207 is made of rubber with a high friction coefficient, under the action of static friction, when the lower plate 207 moves with the connecting seat 202, it will drive the stone slab to slide on the surface of each roller 107, and each roller 107 and The bottom of the stone slab is rolling friction, and the resistance is very small, which will not affect the lower plate 207 to drive the stone slab to move in the direction of discharging, thereby realizing automatic feeding, until the guide rod 200 completely moves to the lower end of the inclined guide rail 201. Since the height difference between the guide rod 200 and the lower end of the inclined guide rail 201 is equal to the maximum movement distance of the pressing plate 110, when the pressing plate 120 presses the stone slab against the cutting table 100, the guide rod 200 is at the lower end of the inclined guide rail 201, and the guide rod 200 pushes the slide rod 201 to move. 20 is moved out of the inclined guide rail 201, and while the third spring 221 is stretched, the vertical section of the L-shaped exhaust channel 222 of the slide bar 220 enters the vertical air channel 204. Since the outer diameter of the slide bar 220 is smaller than the inner diameter of the vertical air channel 204, the gas filled in the closed space formed by the upper plate 205, the lower plate 207 and the membrane 206 will be connected to the outside atmosphere through the vertical section of the L-shaped exhaust channel 222, so that the gas is discharged and the pressure is released, and the lower plate 207 will no longer be pressed against the stone surface. When the horizontal reciprocating drive mechanism drives the electric circular saw 102 to move to the other end of the C-shaped steel 104, it can be seen from the actions in Example 1 that: The push rod 1113 will rise up together with the pressure plate 110, and the guide rod 200 will move from the lower end of the inclined guide rail 201 to the upper end. Under the guidance of the guide rod 200 and the inclined guide rail 201, the inclined guide rail 201 together with the connecting seat 202 will return in the direction of feeding. At this time, since the lower plate 207 is no longer pressed against the surface of the stone slab, the stone slab will not be returned during the return process, and the inflation component will re-inflate the air pressure component.

[0027] This process can be repeated to achieve automatic feeding of stone slabs. In the present embodiment, the lower end of the inclined guide rail 201 is rotatably fixed to the connecting seat 202. Since the height position of the connecting seat 202 is fixed, the lateral span of the inclined guide rail 201 can be changed when the inclined guide rail 201 is rotated and adjusted, thereby adjusting different feeding lengths. The section of hose 216 provided in the air pipe 215 can adapt to the change of the lateral span of the inclined guide rail 201.

[0028] At the same time, in this embodiment, a manual exhaust valve is installed on the membrane 206, so that exhaust can be performed by manually opening it.

[0029] Furthermore, the structure of the lower end of the inclined guide rail 201 and the connecting seat 202 being rotatably fixed in this embodiment is further described. Figure 13 As shown, a turntable 230 is fixedly connected to one side of the inclined guide rail 201, and the turntable 230 is rotatably connected to the connecting seat 202. A plurality of limiting holes 231 are opened on the side of the turntable 230, and the connecting seat 202 is installed with a locking bolt 232. By screwing the locking bolt 232 into different limiting holes 231, the inclined guide rail 201 can be tilted at different angles.

[0030] When the inclined guide rail 201 is rotated, the turntable 230 will rotate synchronously. By locking the locking bolt 232 installed on the connecting seat 202 into the corresponding limiting hole 231 on the side of the turntable 230, the rotation fixation between the connecting seat 202 and the inclined guide rail 201 can be completed. The operation is simple and the processing is convenient.

[0031] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A slab cutting machine comprising a cutting table, a gate-shaped bracket, and an electric circular saw, wherein the gate-shaped bracket has I-beams on both sides and is fixed to the cutting table, and the upper side of the gate-shaped bracket is C-shaped steel and is connected and fixed to the I-beams on both sides, characterized in that: A slider is slidably connected to the inner side of the C-shaped steel, and a transverse reciprocating drive mechanism is also installed on the top of the C-shaped steel. The transverse reciprocating drive mechanism is used to drive the slider to reciprocate inside the top of the door-shaped bracket, and a connecting piece is provided between the electric circular saw and the slider; The cutting table is provided with a cutting groove corresponding to the electric circular saw, the cutting table located in front of the electric circular saw is the discharge end, the cutting table located behind the electric circular saw is the feed end, and a plurality of rollers are installed in the middle of the cutting table; The C-shaped steel is also provided with an automatic pressing mechanism, which includes a pressing plate, a first hydraulic cylinder, a second hydraulic cylinder and a sleeve. The pressing plate is located at the feeding end. There are two first hydraulic cylinders fixed side by side in the middle of the C-shaped steel. The inner walls of the tops of the two first hydraulic cylinders are connected to the first hydraulic disc through a first spring, and the lower ends of the two first hydraulic discs are connected to the pressing plate through a push rod. There are two second hydraulic cylinders and they are respectively fixed at both ends of the C-shaped steel. The second hydraulic cylinder is connected to a hard connecting pipe at one end close to the first hydraulic cylinder, and the hard connecting pipe is communicated with the top of the first hydraulic cylinder. There are two sleeves and they are respectively fixed at both ends of the inner side of the C-shaped steel. A U-shaped connecting rod is commonly provided between the second hydraulic cylinder and the sleeve on the same side. A second hydraulic disc is slidably connected inside the second hydraulic cylinder, and a sliding disc is slidably connected inside the sleeve. One end of the U-shaped connecting rod is connected and fixed to the second hydraulic disc and the other end is connected and fixed to the sliding disc. A second spring is fixedly connected between the sliding disc and the sleeve. A through hole is provided on the facing sides of the two sleeves, and cross bars are fixedly connected on both sides of the slider, and the cross bars match the through holes.

2. A stone slab cutting machine according to claim 1, characterized in that: The first hydraulic cylinder and the second hydraulic cylinder have the same specifications. The first hydraulic cylinder, the second hydraulic cylinder and the hard connecting pipe are filled with hydraulic oil. The spring coefficient k of the first spring and the spring coefficient k' of the second spring satisfy the relationship: k<k'<2k.

3. The stone cutting machine according to claim 1, characterized in that: The C-shaped steel is provided with a strip groove running through it from top to bottom. The horizontal reciprocating drive mechanism includes a motor, a threaded screw and a connecting block. The connecting member is a first vertical connecting rod. The lower end of the first vertical connecting rod is fixedly connected to the electric circular saw. The upper end of the first vertical connecting rod passes through the strip groove and is fixedly connected to the slider and the connecting block in turn. The motor is installed on the top of the C-shaped steel and its output shaft is fixedly installed with the threaded screw. The threaded screw passes through the connecting block and is threadedly connected to the connecting block.

4. A stone slab cutting machine according to claim 3, characterized in that: The top of the C-shaped steel is also provided with a first mounting seat corresponding to one end of the threaded screw rod.

5. The stone slab cutting machine according to claim 1, characterized in that: The feeding end of the cutting table is also provided with a limiting mechanism, which includes two second mounting seats, two screws and two limiting blocks. The two second mounting seats are symmetrically installed on both sides of the cutting table, and the two screws respectively pass through the second mounting seats on both sides and are threadedly connected to the second mounting seats. The facing ends of the two screws are respectively rotatably connected to the two limiting blocks, and the bottoms of the two limiting blocks are in contact with any one of the rotating rollers.

6. The stone slab cutting machine according to claim 5, characterized in that: Both ends of the screw are provided with manual rotating wheels.

7. The stone cutting machine according to claim 1, characterized in that: It also includes an automatic feeding mechanism, which includes a guide rod, an inclined guide rail, a connecting seat, an air pressure component and an inflation component. The guide rod is mounted on and fixed to the pressure plate. The lower end of the inclined guide rail is obliquely connected to the connecting seat and can be rotatably fixed. The height difference between the guide rod and the lower end of the inclined guide rail is equal to the maximum movement distance of the pressure plate. The cutting table is slidably connected to a connecting bracket, which is fixedly connected to the connecting seat. The guide rod extends and is inserted into the inclined guide rail. A vertical air duct is opened inside the connecting seat. The pneumatic assembly includes an upper plate, a membrane and a lower plate. The upper plate is fixedly connected to the bottom of the connecting seat and is connected to the vertical airway. The upper plate and the lower plate form a closed structure through the membrane. The bottom of the lower plate is made of rubber with a high friction coefficient. The inflation assembly includes a piston cylinder fixed to one of the first hydraulic cylinders, a piston disk is slidably connected to the inside of the piston cylinder, a second vertical connecting rod is fixedly connected to the bottom of the piston disk, the lower end of the second vertical connecting rod is fixed to the guide rod, a first one-way valve is installed on the upper side of the piston cylinder, a second one-way valve corresponding to the vertical airway is installed on the top of the connecting seat, an air pipe is connected between the top of the piston cylinder and the second one-way valve, and the air pipe is provided with a section of flexible hose.

8. The stone slab cutting machine according to claim 7, characterized in that: The automatic feeding mechanism is also provided with an exhaust component, which includes a sliding rod that slides horizontally through the connecting seat, and a through groove is provided at one end of the inclined guide rail close to the connecting seat. One end of the sliding rod passes through the through groove and enters the inclined guide rail, and the other end of the sliding rod is elastically connected to the connecting seat by a third spring; the outer diameter of the sliding rod is smaller than the inner diameter of the vertical airway, and an L-shaped exhaust channel is provided inside the sliding rod. The sliding rod is pushed under the elastic force of the third spring so that the vertical section of the L-shaped exhaust channel and the connecting seat are in a closed state.

9. The stone slab cutting machine according to claim 7, characterized in that: The membrane is also equipped with a manual exhaust valve.

10. The stone slab cutting machine according to claim 7, characterized in that: A turntable is fixedly connected to one side of the inclined guide rail, and the turntable is rotatably connected to the connecting seat. A plurality of limiting holes are opened on the side of the turntable, and a locking bolt is installed on the connecting seat. By screwing the locking bolt into different limiting holes, the inclined guide rail can be tilted at different angles.

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