Rock plate injection machine and method for forming rock plate using the same

Abstract

The present invention relates to the field of rock slab processing equipment, and specifically to a rock slab injection molding machine and a method for forming a rock slab using the rock slab injection molding machine. The rock slab injection molding machine includes an extrusion molding mechanism, a cutting mechanism, a flattening mechanism and a conveying mechanism. The extrusion molding mechanism includes a shell, a reamer pivotally mounted in the shell, a molding sleeve fixedly mounted at the discharge end of the shell, and a molding head suspended in the molding sleeve. An annular molding cavity is formed between the molding head and the molding sleeve, and an annular discharge port is formed at the discharge end of the annular molding cavity. The powder is continuously produced through the extrusion molding mechanism, the cutting mechanism, the flattening mechanism and the conveying mechanism, with high production efficiency, and is suitable for large-scale production. In the process of extruding the powder in the cavity to the annular discharge port, the powder is evenly diffused and the transition is smooth. Therefore, the stress of the mud in the molding machine cavity in all directions is uniform, the density of the formed blank is uniform, the blank is not easy to crack after firing, and the yield rate is high.

Description

Technical Field

[0001] The present invention relates to the field of rock slab processing equipment, and in particular to a rock slab injection molding machine and a method for forming a rock slab using the rock slab injection molding machine. Background Art

[0002] Ceramic rock slabs are mainly used in the field of home furnishing and kitchen panels. As a new species in the field of home furnishing, rock slab home furnishings have the characteristics of large specifications, strong plasticity, diverse colors, high temperature resistance, wear resistance, anti-penetration, acid and alkali resistance, zero formaldehyde, environmental protection and health compared with other home furnishing products. Ceramic rock slabs are made of natural raw materials through special processes, with the help of presses of more than 10,000 tons (more than 15,000 tons), combined with advanced production technology, and fired at a high temperature of more than 1200℃. It is a new type of porcelain material with large specifications that can withstand cutting, drilling, grinding and other processing processes. The existing rock slab forming method is to place powder in a mold and directly press it into shape, or to extrude a flat plate-shaped blank and then press it under high pressure with a belt press. The existing technology has the following defects: the high-pressure model forming cannot achieve continuous production, the production efficiency is low, and it is not suitable for large-scale production; and in the method of directly extruding a flat plate-shaped blank, since the cross-section of the extrusion molding inner cavity needs to be directly transformed from a circle to a flat shape, the smooth transition of the inner cavity is very difficult in processing, and due to the irregular changes in the shape of the inner cavity, the stress of the mud in all directions in the inner cavity is uneven, which directly leads to uneven overall density, and the blank after firing is prone to cracking, and the yield is low. Summary of the invention

[0003] One purpose of the present invention is to solve at least the above-mentioned problems, and to solve the problems that the existing production equipment cannot produce continuously, the stress of the mud in the molding machine cavity in all directions is uneven, the density of the green body is uneven, it is easy to crack after firing, and the yield is low through the rock plate injection machine.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a rock slab injection molding machine, characterized in that: it includes an extrusion molding mechanism, a cutting mechanism, a flattening mechanism and a conveying mechanism, the cutting mechanism is located between the extrusion molding mechanism and the flattening mechanism, the conveying mechanism is located below the flattening mechanism, the extrusion molding mechanism includes a shell, a reamer pivotally mounted in the shell, a molding sleeve fixed at the discharge end of the shell and a molding head suspended in the molding sleeve, an annular molding cavity is formed between the molding head and the molding sleeve, and the discharge end of the annular molding cavity forms an annular discharge port.

[0005] Preferably, the forming head is rotatably connected to the shaft end of the reamer shaft, the annular discharge port is in a circular ring shape, and the side of the forming head close to the feed end is conical.

[0006] Preferably, the extrusion molding machine also includes a motor, a gear transfer case and a vacuum chamber, the shell includes an upper stirring shell and a lower stirring shell, the upper stirring shell and the lower stirring shell are provided with grooves extending along the long direction, the upper stirring shell is provided with a feed hopper, the reamer includes an upper reamer and a lower reamer, the gear transfer case, the upper stirring shell, the vacuum chamber, the lower stirring shell and the molding sleeve are connected in sequence, two upper reamers arranged in parallel are pivotally provided in the upper stirring shell, the lower reamer is pivotally provided in the lower stirring shell, the motor is transmission-connected to the upper reamer and the lower reamer through the gear transfer case, and the axis of the rotating shaft of the upper reamer is located above the axis of the rotating shaft of the lower reamer.

[0007] Preferably, the cutting mechanism includes a cutting gantry, a center-splitting cutter for cutting the annular blank extruded by the extrusion molding mechanism, and a cutting cutter for cutting the annular blank into a fixed length transverse direction. The cutting blade of the center-splitting cutter is along the vertical direction, and the cutting blade of the center-splitting cutter coincides with the longitudinal axis section of the molding head. The top end of the center-splitting cutter is fixedly connected to the cutting gantry, and the bottom end is fixedly connected to the molding head. The center-splitting cutter is linear.

[0008] Preferably, the cutting blade of the cutting tool is along the horizontal direction, and the cutting tool is linear. The cutting mechanism also includes a lifting arm, a lifting guide rod and a lifting drive unit. There are two lifting arms, and the two lifting arms are respectively arranged on the left and right sides of the annular discharge port. The lifting guide rods are respectively fixed on the left and right sides of the cutting gantry. The lifting arm is slidably arranged on the lifting guide rod, and the lifting arm is driven to lift by the lifting drive unit. The two ends of the cutting tool are respectively fixed on the two lifting arms.

[0009] Preferably, the flattening mechanism includes a flattening gantry, a blank support frame, a left transverse driving unit and a right transverse driving unit, the blank support frame includes a left outer ring support frame, a left inner ring support frame, a right outer ring support frame and a right inner ring support frame, and a supporting space that can be interconnected and is used to accommodate and support the annular blank extruded by the extrusion molding mechanism is formed between the left outer ring support frame and the left inner ring support frame, and between the right outer ring support frame and the right inner ring support frame. The left outer ring support frame and the left inner ring support frame move laterally when driven by the left transverse driving unit, and the right outer ring support frame and the right inner ring support frame move laterally when driven by the right transverse driving unit.

[0010] Preferably, the blank support frame also includes a left crossbeam and a right crossbeam, the left outer ring support frame and the left inner ring support frame are fixedly arranged under the left crossbeam, the right outer ring support frame and the right inner ring support frame are fixedly arranged under the right crossbeam, the flattening gantry is provided with parallelly arranged guide rails, the left crossbeam and the right crossbeam are slidably set on the guide rails, the blank support frame is provided with rotatable rollers, the rollers on the left inner ring support frame and the right inner ring support frame are distributed along the circumferential direction, and the distance between the left outer ring support frame and the left inner ring support frame, and the distance between the right outer ring support frame and the right inner ring support frame gradually increase from bottom to top.

[0011] Preferably, the flattening mechanism also includes a proximity sensor, a sensor moving linear guide, a curved anti-roll plate and an anti-roll driving linear guide. The sensor moving linear guide is fixed on the flattening gantry along the horizontal direction, and the anti-roll driving linear guide is fixed on the flattening gantry along the vertical direction. The proximity sensor moves laterally under the drive of the sensor moving linear guide, and the curved anti-roll plate moves longitudinally under the drive of the anti-roll driving linear guide. The proximity sensor and the curved anti-roll plate are located above the joint surface when the left outer ring support frame and the left inner ring support frame are spliced, and the curved anti-roll plate is located directly above the end of the blank support frame close to the forming head.

[0012] Preferably, it also includes a flattening mechanism, the conveying mechanism extends from under the flattening mechanism to under the flattening mechanism, the flattening mechanism includes a flattening shell and a hair dryer fixed on the flattening shell, the channel between the bottom surface of the flattening shell and the conveying surface of the conveying mechanism includes a wedge-shaped channel and a parallel channel, the height of the wedge-shaped channel gradually decreases from the feeding direction to the discharging direction, the bottom surface of the flattening shell corresponds to the wedge-shaped channel and the parallel channel are both provided with air outlets, the air outlets of the bottom surface of the flattening shell corresponding to the wedge-shaped channel are arranged on the left and right sides, and the air outlets of the bottom surface of the flattening shell corresponding to the parallel channel are connected from left to right.

[0013] The rock plate forming method is produced by using the above-mentioned rock plate injection molding machine, and is characterized in that it includes the following steps:

[0014] Step a, extrusion molding: the raw material is added into the upper stirring shell from the feed port of the extrusion molding mechanism, stirred, extruded and conveyed by the upper reamer of the double shaft, and then enters the vacuum chamber, where the air is evacuated to remove the vacuum chamber, and then enters the lower stirring shell, where it is further extruded under the action of the lower reamer, and enters the molding sleeve, and is extruded through the annular molding cavity and the annular discharge port to form an annular tube-shaped blank, and the extruded annular tube-shaped blank is supported by a blank support frame;

[0015] Step b, cutting: while the annular tube-shaped blank is extruded from the annular discharge port, the top of the annular tube-shaped blank is cut by a center-cutting tool, and when the annular tube-shaped blank reaches a set length, the cutting tool cuts the blank transversely;

[0016] Step c, flattening: the left outer ring support frame and the left inner ring support frame move to the left, and the right outer ring support frame and the right inner ring support frame move to the right, and the separation process drives the blank to unfold, and the blank is gradually flattened onto the conveying mechanism;

[0017] Step d: Flattening: The flattened blank is transported by the conveying mechanism and enters the flattening mechanism to be further flattened.

[0018] From the above description, it can be seen that the rock slab injection machine provided by the present invention has the following beneficial effects: the powder is continuously produced through the extrusion molding mechanism, the cutting mechanism, the flattening mechanism and the conveying mechanism, with high production efficiency and suitable for large-scale production; a circular molding cavity and a circular discharge port are formed between the molding head and the molding sleeve, and the side of the molding head close to the feed end is tapered, so that in the process of the powder in the cavity being extruded toward the annular discharge port, the powder is evenly diffused and the transition is smooth. Therefore, the stress of the mud material in the molding machine cavity in all directions is uniform, the density of the molded blank is uniform, the blank is not easy to crack after firing, and the yield is high; the blank support frame of the flattening mechanism supports the blank during the molding process to prevent the blank from deformation. During the expansion of the blank support frame, the annular blank is driven by the roller to be flattened smoothly, and the flattening mechanism further flattens the flattened blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the rock plate injection molding machine of the present invention.

[0020] Figure 2 for Figure 1 Side view of.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the extrusion molding mechanism and the cutting mechanism.

[0022] Figure 4 for Figure 3 sectional view of .

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the flattening mechanism.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the flattening mechanism.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the blank support frame.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the flattening mechanism.

[0027] Fig. 9 for Figure 8 Top view of the .

[0028] Fig.10This is a schematic diagram of the rock plate injection molding machine in the cutting state.

[0029] Fig.11 This is a schematic diagram of the rock plate injection molding machine in a flattened state.

[0030] Fig.12 This is a schematic diagram of the rock plate injection molding machine in a flattened state. DETAILED DESCRIPTION

[0031] The present invention is further described below through specific implementation modes.

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] like Figure 1 and 2 As shown, the rock slab injection molding machine of the present invention includes an extrusion molding mechanism 1, a cutting mechanism 2, a flattening mechanism 3, a conveying mechanism 4 and a flattening mechanism 5.

[0034] The cutting mechanism 2 is located between the extrusion molding mechanism 1 and the flattening mechanism 3, and the conveying mechanism 4 is located below the flattening mechanism 3. The conveying mechanism 4 extends from below the flattening mechanism 3 to below the flattening mechanism 5. The extrusion molding mechanism 1 is used to form the powder into a circular tubular blank 100 by stirring, vacuuming, and pressurizing. The cutting mechanism 2 cuts the top of the circular tubular blank 100 and cuts it horizontally. The flattening mechanism 3 unfolds the circular tubular blank 100 cut in the middle into a flat shape and conveys it through the conveying mechanism 4. The flattening mechanism 5 further flattens the blank 100. The powder is continuously produced through the extrusion molding mechanism 1, the cutting mechanism 2, the flattening mechanism 3, and the conveying mechanism 4. The production efficiency is high, which is suitable for large-scale production and is used in conjunction with the high-pressure belt conveyor at the rear. The conveying mechanism 4 adopts a traditional belt conveyor.

[0035] like Figure 3 and 4As shown, the extrusion molding mechanism 1 includes a housing, a reamer pivotally mounted in the housing, a molding sleeve 11 fixedly mounted at the discharge end of the housing, and a molding head 12 suspended in the molding sleeve 11. An annular molding cavity 111 is formed between the molding head 12 and the molding sleeve 11, and an annular discharge port 112 is formed at the discharge end of the annular molding cavity 111. The molding head 12 is rotatably connected to the shaft end of the reamer shaft, and the molding head 12 is connected to the shaft end of the reamer shaft through a bearing. The annular discharge port 112 is in the shape of a circular ring, and the side of the molding head 12 close to the feed end is conical. A circular molding cavity 111 and a circular discharge port 112 are formed between the molding head 12 and the molding sleeve 11. The side of the molding head 12 close to the feed end is tapered, so that during the process of the powder in the cavity being extruded toward the annular discharge port 112, the powder is evenly diffused and the transition is smooth. Therefore, the stress of the mud in the molding machine cavity is uniform in all directions, the density of the molded blank 100 is uniform, the blank 100 is not easy to crack after firing, and the yield rate is high.

[0036] The extrusion molding machine also includes a motor 13, a gear transfer case 14 and a vacuum chamber 15. The shell includes an upper mixing shell 16 and a lower mixing shell 17. The upper mixing shell 16 and the lower mixing shell 17 are provided with grooves extending along the long direction (axial direction) to prevent the mud from rotating when the reamer is working. A feed hopper is provided on the upper mixing shell 16. The reamer includes an upper reamer 18 and a lower reamer 19. The gear transfer case 14, the upper mixing shell 16, the vacuum chamber 15, the lower mixing shell 17 and the molding sleeve 11 are connected in sequence. Two upper reamers 18 arranged in parallel are pivotally provided in the upper mixing shell 16. The lower reamer 19 is pivotally provided in the lower mixing shell 17. The motor 13 is connected to the upper reamer 18 and the lower reamer 19 through the gear transfer case 14. The axis of the rotating shaft of the upper reamer 18 is located above the axis of the rotating shaft of the lower reamer 19. The powder enters the upper mixing shell 16 through the feed port, is mixed, extruded and transported into the vacuum chamber 15 by the double-axis upper reamer 18, the vacuum chamber 15 is connected to the vacuum pipe and is provided with a vacuum gauge, the raw material is evacuated in the vacuum chamber 15 to remove air, then enters the lower mixing shell 17, enters the forming sleeve 11 driven by the lower reamer 19, and finally is extruded to form an annular tube-shaped blank 100.

[0037] like Figure 3 and 4As shown, the cutting mechanism 2 includes a cutting gantry 21, a center-splitting cutter 22 for center-splitting the annular tube-shaped blank 100 extruded by the extrusion molding mechanism 1, and a cutting cutter 23 for horizontally cutting the annular tube-shaped blank 100 at a fixed length. The cutting blade of the center-splitting cutter 22 is along the vertical direction, and the cutting blade of the center-splitting cutter 22 coincides with the longitudinal axial section of the molding head 12. The top end of the center-splitting cutter 22 is fixedly connected to the cutting gantry 21, and the bottom end is fixedly connected to the molding head 12, and the center-splitting cutter 22 is linear. Since the molding head 12 is pivotally connected to the axial end of the reamer shaft, and the upper and lower ends of the center-splitting cutter 22 are respectively fixedly connected to the cutting gantry 21 and the molding head 12, the molding head 12 is limited by the tightened and fixed center-splitting cutter 22 and does not rotate with the lower reamer 19.

[0038] The cutting blade of the cutting tool 23 is along the horizontal direction, and the cutting tool 23 is linear. The cutting mechanism 2 also includes a lifting arm 24, a lifting guide rod 25 and a lifting drive unit 26. There are two lifting arms 24, and the two lifting arms 24 are respectively arranged on the left and right sides of the annular discharge port 112. The left and right sides of the cutting gantry 21 are respectively fixed with lifting guide rods 25. The lifting arm 24 is slidably arranged on the lifting guide rod 25. The lifting arm 24 is driven to lift and lower by the lifting drive unit 26. In this embodiment, the lifting drive unit 26 is a cylinder. In other embodiments, the lifting drive unit 26 can be a linear guide rail, a linear motor 13 or other driving form. The two ends of the cutting tool 23 are respectively fixed on the two lifting arms 24, and the lifting drive unit 26 drives the cutting tool 23 to move longitudinally, thereby horizontally cutting the annular tube-shaped blank 100.

[0039] like Figures 5 to 7 As shown, the flattening mechanism 3 includes a flattening gantry 31, a blank support frame, a left transverse drive unit 32 and a right transverse drive unit 33. The blank support frame includes a left outer ring support frame 34, a left inner ring support frame 35, a right outer ring support frame 36 and a right inner ring support frame 37. Support spaces that are interconnected and used to accommodate and support the annular tube-shaped blank 100 extruded by the extrusion molding mechanism 1 are formed between the left outer ring support frame 34 and the left inner ring support frame 35, and between the right outer ring support frame 36 and the right inner ring support frame 37. When the blank support frame is closed, the support spaces on both sides are connected at the bottom and the top, so that the extruded annular tube-shaped blank 100 can enter the support space and be supported by the blank support frame. The left outer ring support frame 34 and the left inner ring support frame 35 move laterally under the drive of the left transverse drive unit 32, and the right outer ring support frame 36 and the right inner ring support frame 37 move laterally under the drive of the right transverse drive unit 33.

[0040] The blank support frame also includes a left crossbeam 38 and a right crossbeam 39. The left outer ring support frame 34 and the left inner ring support frame 35 are fixedly arranged below the left crossbeam 38. The right outer ring support frame 36 and the right inner ring support frame 37 are fixedly arranged below the right crossbeam 39. The flattening gantry 31 is provided with parallel guide rails, and the left crossbeam 38 and the right crossbeam 39 are slidably arranged on the guide rails. The blank support frame is provided with rotatable rollers 310. When the left inner ring support frame 35 and the right inner ring support frame 37 are closed, the rollers 310 thereon are distributed along the annular direction. The distance between the frame 34 and the left inner ring support frame 35, and the distance between the right outer ring support frame 36 and the right inner ring support frame 37 gradually increase from bottom to top, and the support space is wide at the top and narrow at the bottom, so as to facilitate the rapid and smooth unfolding of the annular tube-shaped blank 100 that is cut in the middle. During the separation of the left outer ring support frame 34, the left inner ring support frame 35, the right outer ring support frame 36, and the right inner ring support frame 37, the middle of the blank 100 first falls onto the belt of the conveying mechanism 4, and then the blank 100 slides down along the roller 310 and gradually unfolds onto the conveying mechanism 4.

[0041] The flattening mechanism 3 further includes a proximity sensor 311, a sensor moving linear guide 312, an arc-shaped anti-roll plate 313 and an anti-roll driving linear guide 314. The sensor moving linear guide 312 is fixedly arranged on the flattening gantry 31 along the horizontal direction, and the anti-roll driving linear guide 314 is fixedly arranged on the flattening gantry 31 along the vertical direction. The proximity sensor 311 moves laterally under the drive of the sensor moving linear guide 312, and the arc-shaped anti-roll plate 313 moves longitudinally under the drive of the anti-roll driving linear guide 314. The proximity sensor 311 and the arc-shaped anti-roll plate 313 are located above the joint surface when the left outer ring support frame 34 and the left inner ring support frame 35 are spliced, and the arc-shaped anti-roll plate 313 is located directly above the end of the blank support frame close to the forming head 12. The proximity sensor 311 is used to detect the annular tubular blank 100. The proximity sensor 311 can sense the distance change of the object. The capacitive proximity sensor 311 (such as BS-M18D) can detect metal and non-metal. When the annular tube-shaped blank 100 is not unfolded, although it is cut, the two ends are not separated. After the proximity sensor 311 detects the blank 100, the forming mechanism stops feeding. The position of the proximity sensor 311 is adjustable, so the cutting length of the annular tube-shaped blank 100 can be adjusted within a certain range to meet different production requirements. After the proximity sensor 311 senses the blank 100, the arc anti-tilt plate 313 is driven by the anti-tilt driving linear guide 314 to move longitudinally to 1-2mm above the annular tube-shaped blank 100, and the lifting drive unit 26 drives the truncation cutter 23 to move longitudinally, and then the annular tube-shaped blank 100 is horizontally truncated. During the truncation process, the arc anti-tilt plate 313 limits the end of the annular tube-shaped blank 100, which can prevent the annular tube-shaped blank 100 from tilting upward, resulting in a transitional tilt of the cut end face. After truncation, the arc anti-tilt plate 313 rises, and the blank support frame separates, driving the blank 100 to unfold and flatten.

[0042] The flattening mechanism 5 includes a flattening shell 51 and a blower 52 fixed on the flattening shell 51. The channel between the bottom surface of the flattening shell 51 and the conveying surface of the conveying mechanism 4 includes a wedge-shaped channel 54 and a parallel channel. The height of the wedge-shaped channel gradually decreases from the feeding direction to the discharging direction. The wedge-shaped channel and the parallel channel corresponding to the bottom surface of the flattening shell 51 are both provided with air outlets 53. The air outlets 53 corresponding to the wedge-shaped channel 54 on the bottom surface of the flattening shell 51 are arranged on the left and right sides, and the air outlets 53 corresponding to the parallel channel on the bottom surface of the flattening shell 51 are connected left and right. When the blank 100 passes through the wedge-shaped channel 54, the two ends of the upward warping effect are pressed down by the air outlet 53 to fit the belt. When passing through the parallel channel, the whole body is pressed down by the air outlet 53 to fit the belt.

[0043] The rock plate forming method is produced by using the above-mentioned rock plate injection molding machine, and comprises the following steps:

[0044] Step a, extrusion molding: the raw material is added into the upper stirring shell from the feed port of the extrusion molding mechanism 1, and is stirred, extruded and conveyed by the upper reamer of the double shaft, and then enters the vacuum chamber, where the air is evacuated to remove the air, and then enters the lower stirring shell, is further extruded under the action of the lower reamer, and enters the molding sleeve 11, and is extruded through the annular molding cavity and the annular discharge port to form an annular tube-shaped blank 100, and the extruded annular tube-shaped blank 100 is supported by a blank support frame;

[0045] Step b, cutting: Fig.10 As shown, while the annular tube-shaped blank 100 is extruded from the annular discharge port, the top of the annular tube-shaped blank 100 is cut by the center cutter 22. When the annular tube-shaped blank 100 reaches a set length, the cutter cuts the blank 100 transversely.

[0046] Step c, flatten: Fig.11 As shown, the left outer ring support frame 34 and the left inner ring support frame 35 move to the left, and the right outer ring support frame 36 and the right inner ring support frame 37 move to the right, and the blank 100 is driven to unfold during the separation process, and the blank 100 is gradually laid flat on the conveying mechanism;

[0047] Step d: Flattening: Fig.12 As shown, the flattened blank 100 is conveyed by the conveying mechanism 4 and enters below the flattening mechanism for further flattening.

[0048] From the above description, it can be seen that the rock slab injection machine provided by the present invention has the following beneficial effects: the powder is continuously produced through the extrusion molding mechanism 1, the cutting mechanism 2, the flattening mechanism 3 and the conveying mechanism 4, with high production efficiency and suitable for large-scale production; a circular molding cavity 111 and a circular discharge port 112 are formed between the molding head 12 and the molding sleeve 11, and the side of the molding head 12 close to the feed end is conical, so that in the process of the powder in the cavity being extruded toward the annular discharge port 112, the powder is evenly diffused and the transition is smooth. Therefore, the stress of the mud in all directions in the molding machine cavity is uniform, the density of the molded blank 100 is uniform, and the blank 100 is not easy to crack after firing, and the yield rate is high; the blank support frame of the flattening mechanism 3 supports the blank 100 during the molding process to prevent the blank 100 from deformation. During the expansion of the blank support frame, the annular tubular blank 100 is driven by the roller 310 to be smoothly flattened, and the flattening mechanism 5 further flattens the flattened blank 100.

[0049] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships 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, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Matters not described in detail in this specification belong to the prior art known to professional and technical personnel in the field.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or connected or set in one piece; "pivot" or "pivot connection" refers to a connection between two parts that can rotate relative to each other along a rotating axis. The models of electrical appliances provided in the present invention are for reference only. For ordinary technicians in this field, different models of electrical appliances with the same functions can be replaced according to actual usage. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The above are only some specific implementation methods of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. Rock plate injection molding machine, characterized by: The invention comprises an extrusion molding mechanism, a cutting mechanism, a flattening mechanism and a conveying mechanism, wherein the cutting mechanism is located between the extrusion molding mechanism and the flattening mechanism, and the conveying mechanism is located below the flattening mechanism. The extrusion molding mechanism comprises a shell, a reamer pivotally mounted in the shell, a molding sleeve fixedly mounted at the discharge end of the shell and a molding head suspended in the molding sleeve, an annular molding cavity is formed between the molding head and the molding sleeve, and an annular discharge port is formed at the discharge end of the annular molding cavity, the molding head is rotatably connected to the axial end of the reamer shaft, the annular discharge port is in the shape of a circular ring, and the side of the molding head close to the feed end is conical, the flattening mechanism comprises a flattening gantry, a blank support frame, a left transverse driving unit and a right transverse driving unit, the blank support frame comprises a left outer ring support frame, a left inner ring support frame, a right outer ring support frame and a right inner ring support frame, and the left outer ring support frame and the left inner ring support frame, and the right outer ring support frame and the right inner ring support frame are between the left outer ring support frame and the left inner ring support frame, and between the right outer ring support frame and the right inner ring A supporting space that is interconnected and is used to accommodate and support the annular blank extruded by the extrusion molding mechanism is formed between the support frames, the left outer ring support frame and the left inner ring support frame move laterally under the drive of the left transverse driving unit, and the right outer ring support frame and the right inner ring support frame move laterally under the drive of the right transverse driving unit, the blank support frame also includes a left crossbeam and a right crossbeam, the left outer ring support frame and the left inner ring support frame are fixedly arranged under the left crossbeam, and the right outer ring support frame and the right inner ring support frame are fixedly arranged under the right crossbeam, the flattening gantry is provided with parallelly arranged guide rails, the left crossbeam and the right crossbeam are slidably arranged on the guide rails, the blank support frame is provided with rotatable rollers, the rollers on the left inner ring support frame and the right inner ring support frame are distributed along the circumferential direction, and the distance between the left outer ring support frame and the left inner ring support frame, and the distance between the right outer ring support frame and the right inner ring support frame gradually increase from bottom to top.

2. The rock plate injection molding machine according to claim 1, characterized in that: The extrusion molding machine also includes a motor, a gear transfer case and a vacuum chamber, the shell includes an upper stirring shell and a lower stirring shell, the upper stirring shell and the lower stirring shell are provided with grooves extending along the long direction, the upper stirring shell is provided with a feed hopper, the reamer includes an upper reamer and a lower reamer, the gear transfer case, the upper stirring shell, the vacuum chamber, the lower stirring shell and the molding sleeve are connected in sequence, the upper stirring shell is pivotally provided with two upper reamers arranged in parallel, the lower reamer is pivotally provided in the lower stirring shell, the motor is transmission-connected to the upper reamer and the lower reamer through the gear transfer case, and the axis of the rotating shaft of the upper reamer is located above the axis of the rotating shaft of the lower reamer.

3. The rock plate injection molding machine according to claim 1, characterized in that: The cutting mechanism includes a cutting gantry, a center-splitting cutter for cutting the annular blank extruded by the extrusion molding mechanism, and a cutting cutter for cutting the annular blank into a fixed length transverse direction. The cutting blade of the center-splitting cutter is along the vertical direction, and the cutting blade of the center-splitting cutter coincides with the longitudinal axis section of the molding head. The top end of the center-splitting cutter is fixedly connected to the cutting gantry, and the bottom end is fixedly connected to the molding head. The center-splitting cutter is linear.

4. The rock plate injection molding machine according to claim 3, characterized in that: The cutting blade of the cutting tool is along the horizontal direction, and the cutting tool is linear. The cutting mechanism also includes a lifting arm, a lifting guide rod and a lifting drive unit. There are two lifting arms, and the two lifting arms are respectively arranged on the left and right sides of the annular discharge port. The lifting guide rods are respectively fixed on the left and right sides of the cutting gantry. The lifting arm is slidably arranged on the lifting guide rod. The lifting arm is driven to lift and lower by the lifting drive unit, and the two ends of the cutting tool are respectively fixed on the two lifting arms.

5. The rock plate injection molding machine according to claim 1, characterized in that: The flattening mechanism also includes a proximity sensor, a sensor moving linear guide, an arc-shaped anti-roll plate and an anti-roll driving linear guide. The sensor moving linear guide is fixed on the flattening gantry along the horizontal direction, and the anti-roll driving linear guide is fixed on the flattening gantry along the vertical direction. The proximity sensor moves laterally under the drive of the sensor moving linear guide, and the arc-shaped anti-roll plate moves longitudinally under the drive of the anti-roll driving linear guide. The proximity sensor and the arc-shaped anti-roll plate are located above the joint surface when the left outer ring support frame and the left inner ring support frame are spliced, and the arc-shaped anti-roll plate is located directly above the end of the blank support frame close to the forming head.

6. The rock plate injection molding machine according to claim 1, characterized in that: It also includes a flattening mechanism, the conveying mechanism extends from under the flattening mechanism to under the flattening mechanism, the flattening mechanism includes a flattening shell and a hair dryer fixed on the flattening shell, the channel between the bottom surface of the flattening shell and the conveying surface of the conveying mechanism includes a wedge-shaped channel and a parallel channel, the height of the wedge-shaped channel gradually decreases from the feeding direction to the discharging direction, the bottom surface of the flattening shell corresponds to the wedge-shaped channel and the parallel channel are both provided with air outlets, the air outlets of the bottom surface of the flattening shell corresponding to the wedge-shaped channel are arranged on the left and right sides, and the air outlets of the bottom surface of the flattening shell corresponding to the parallel channel are connected from left to right.

7. A method for forming a rock plate, using the rock plate injection molding machine according to any one of claims 1 to 6, characterized in that: The steps include: Step a, extrusion molding: the raw material is added into the upper stirring shell from the feed port of the extrusion molding mechanism, stirred, extruded and conveyed by the upper reamer of the double shaft, and then enters the vacuum chamber, where the air is evacuated to remove the vacuum chamber, and then enters the lower stirring shell, where it is further extruded under the action of the lower reamer, and enters the molding sleeve, and is extruded through the annular molding cavity and the annular discharge port to form an annular tube-shaped blank, and the extruded annular tube-shaped blank is supported by a blank support frame; Step b, cutting: while the annular tube-shaped blank is extruded from the annular discharge port, the top of the annular tube-shaped blank is cut by a center-cutting tool, and when the annular tube-shaped blank reaches a set length, the cutting tool cuts the blank transversely; Step c, flattening: the left outer ring support frame and the left inner ring support frame move to the left, and the right outer ring support frame and the right inner ring support frame move to the right, and the separation process drives the blank to unfold, and the blank is gradually flattened onto the conveying mechanism; Step d: Flattening: The flattened blank is transported by the conveying mechanism and enters the flattening mechanism to be further flattened.

Images