Bar stock pellet dual state forming machine

Abstract

The application discloses a kind of bar granule bimorph forming machine, it is related to material forming technical field, including rack, the upper end of rack is equipped with bunker, the upper end of rack is located below bunker and is equipped with forming device, forming device includes left bar forming mechanism and right granule forming mechanism independent of each other, both are communicated with the outlet of bunker bottom by spiral feeding device, left bar forming mechanism includes left forming oil cylinder and left connecting seat, and bar forming die is installed in left connecting seat other end by quick connection structure, bar forming die adopts upper and lower separation type structure and is equipped with anti-blocking structure in bottom, discharge port is equipped with adjustable pressure bar plugging component, the application adopts left and right double-station independent forming structure, can realize bar and granule double form synchronous forming, unilateral fault does not affect the continuous production of other side, while bar forming pressure can be flexibly adjusted, with anti-blocking function, effectively improve the applicability and production efficiency of equipment.

Description

Technical Field

[0001] This invention relates to the field of material forming technology, specifically to a rod-particle dual-state forming machine, which is applied to the resource recycling of powdery and granular waste materials. Background Technology

[0002] In the industrial production processes such as tobacco, a large amount of powdery and granular waste is continuously generated. These loose materials have low bulk density, occupy a large area, and are extremely easy to spread dust, which not only causes on-site environmental pollution but also leads to the waste of a large amount of recyclable material resources. In order to realize the resource recycling, centralized storage and secondary utilization of such materials, while improving the working environment and reducing material loss, material pressing and molding technology has become the core process for powder processing in the industry, and the corresponding powder molding equipment is also widely used in industrial processing production lines.

[0003] However, existing traditional powder forming equipment has the following technical defects in practical applications:

[0004] 1. Traditional equipment has poor flexibility in adjusting the forming pressure during the forming process. When faced with different batches of dusty materials with different particle sizes and humidity, it is easy to encounter problems such as material blockage, loose forming and falling off of the material, resulting in a low finished product qualification rate.

[0005] 2. Existing powder forming equipment only supports the forming and processing of materials in a single form, and cannot meet the production needs of forming both rods and granules at the same time. For diversified material forming operation scenarios, enterprises need to equip themselves with a variety of forming machines with different functions, which greatly increases costs.

[0006] 3. Traditional hydraulic dual-head forming assemblies mostly adopt an integrated linkage hydraulic structure, with the two forming heads being interconnected and unable to operate independently. During equipment operation, if one of the forming heads malfunctions, leaks, or jams, the entire hydraulic system will not function properly, leading to production line interruption.

[0007] Therefore, developing a molding equipment with adjustable bar forming pressure, capable of independent continuous operation, and capable of both bar and granule forming is a pressing technical problem that needs to be solved. Summary of the Invention

[0008] (a) Technical issues

[0009] This invention provides a dual-state molding machine for bar stock and pellets, which aims to solve the technical problems of existing powder molding equipment, such as the single molding form, machine shutdown due to single-end failure, and inconvenience in adjusting the molding pressure of bar stock.

[0010] (II) Technical Content

[0011] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: a dual-state forming machine for rods and pellets, including a frame, a hopper fixedly provided at the upper end of the frame, a material stirring device provided at the bottom of the hopper, a forming device fixedly provided at the upper end of the frame and below the hopper, the forming device including a left rod forming mechanism and a right pellet forming mechanism that are independent of each other, the left rod forming mechanism and the right pellet forming mechanism being connected to the bottom outlet of the hopper through a screw conveying device respectively; the left rod forming mechanism includes a left forming cylinder and a left connecting seat fixedly provided at the upper end of the frame in sequence, the left connecting seat having a cavity inside and its rear side connected to the screw conveying device, one end of the left connecting seat being connected to the left forming cylinder and the other end being fixedly installed with a rod forming mold through a quick-connect structure; the rod forming mold adopts an upper and lower separation structure and its bottom is fixedly provided with an anti-blocking material structure for closing or separating the rod forming mold, and an adjustable pressure rod sealing component is fixedly provided at the outlet of the rod forming mold.

[0012] Furthermore, the bar forming die includes a lower die groove and an upper die cover. The lower die groove is fixedly disposed at one end of the left connecting seat via a quick-connect structure. The upper die cover abuts against the lower die groove, and the bottom of the lower die groove is fixedly provided with the anti-blocking material structure for driving the upper die cover to move upward and separate.

[0013] Furthermore, the anti-clogging material structure includes an anti-clogging material cylinder, which is fixedly disposed at the bottom of the lower mold groove and its piston end is fixedly connected to the upper mold cover.

[0014] Furthermore, the bar stock sealing assembly includes a bracket fixed to the outlet end of the upper mold cover, a blocking plate is hinged to the bottom of the bracket, and a pressure rod that can rotatably press the blocking plate is installed at the outer end of the bracket via a torsion spring fixing shaft and a torsion spring. One end of the bracket is provided with an eccentric knob structure for adjusting the torsion spring torque.

[0015] Furthermore, the right-side particle forming mechanism includes a right-side forming cylinder and a right-side connecting seat that are fixedly mounted on the upper end of the frame in sequence. The right-side connecting seat has the same structure as the left-side connecting seat, and the right-side forming cylinder has the same structure as the left-side forming cylinder. A particle forming mold is fixedly installed on the outer end of the right-side connecting seat through a quick-connect structure.

[0016] Furthermore, the bottom of the hopper is provided with two outlets corresponding to the left bar forming mechanism and the right pellet forming mechanism, respectively. The bottom of each outlet is connected to the spiral conveying device, and each outlet is equipped with an electromagnetic valve.

[0017] Furthermore, the screw conveying device includes a transverse screw conveyor fixedly mounted on the upper end of the frame, and a material loosening mechanism fixedly mounted on the upper end of the transverse screw conveyor and communicating with its inner cavity.

[0018] Furthermore, the material loosening mechanism includes a loosening chamber, the upper end of which is connected to the outlet of the hopper, and an agitator for loosening materials is installed inside the chamber.

[0019] Furthermore, the side of the silo is provided with a transparent observation window, and the bottom, middle and upper parts of the inner wall of the silo are respectively provided with a material low-level sensor, a material middle-level sensor and a material high-level sensor for monitoring the material position.

[0020] Furthermore, the left forming cylinder is provided with a rod-side port and a rodless port. The rod-side port and the rodless port are connected in one direction through a speed-increasing valve. When oil enters the rodless port and oil exits the rod-side port, the hydraulic oil discharged from the rod-side port enters the rodless port through the speed-increasing valve. When oil enters the rod-side port, the rodless port is connected to the oil tank and the hydraulic oil flowing out of it directly enters the oil tank.

[0021] (III) Technical Effects

[0022] The advantages of this invention compared to the prior art are:

[0023] 1. This invention adopts a dual-station independent forming structure, with the left side being the bar forming mechanism and the right side being the pellet forming mechanism. The two forming mechanisms are independent of each other and do not interfere with each other. If one side fails, the other side can continue production, effectively avoiding the drawback of the traditional integrated linkage structure where a single-end failure leads to the shutdown of the entire machine, and improving the continuity of equipment production.

[0024] 2. This invention provides a bar stock blocking assembly consisting of a support, a blocking plate, a torsion spring, and an eccentric knob structure at the discharge port of the bar stock forming die. The torsion spring torque can be adjusted by rotating the eccentric knob structure according to the material's moisture content and particle size differences, thereby achieving rapid adjustment of the bar stock forming pressure. In conjunction with the anti-blocking hydraulic cylinder, the upper die cover is forcibly separated from the lower die groove when blockage occurs. This solves the technical problems of poor adaptability to materials in different states, easy blockage, and loose forming in traditional equipment, and significantly improves the finished product qualification rate.

[0025] 3. This invention enables quick disassembly and replacement of the bar forming mold by setting a quick-connect structure at the front end of the left connecting seat; the right granule forming mechanism is also equipped with a second quick-connect structure, which can quickly switch between different specifications of granule forming molds according to production needs, realize multi-specification production on one machine, and reduce equipment procurement costs.

[0026] 4. By setting an acceleration valve, the present invention connects the oil port of the rod chamber and the oil port of the rodless chamber in one direction. When oil is introduced into the rodless chamber, the hydraulic oil discharged from the rod chamber is returned to the rodless chamber, which effectively improves the working efficiency of the forming cylinder and shortens the single forming cycle. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of a bar pellet dual-state molding machine according to the present invention.

[0028] Figure 2 This is a schematic diagram of the structure of the silo and material mixing device in this invention.

[0029] Figure 3 This is a schematic diagram of the molding device in this invention.

[0030] Figure 4 This is an exploded structural diagram of the bar forming mechanism on the left side of this invention.

[0031] Figure 5 This is a schematic diagram of the structure of the bar plugging assembly in this invention.

[0032] Figure 6 This is an exploded structural diagram of the particle forming mechanism on the right side of this invention.

[0033] Figure 7 This is a schematic diagram of the cross-sectional structure of the forming device in this invention.

[0034] Figure 8 This is a three-dimensional structural diagram of the spiral conveying device in this invention.

[0035] Figure 9 This is a schematic diagram of the hydraulic circuit between the right-side forming cylinder and the left-side forming cylinder in this invention.

[0036] Figure 10 This is a schematic diagram of the molding process production line where the bar stock pellet dual-state molding machine of the present invention is located.

[0037] In the diagram: 1. Frame; 2. Hopper; 3. Material mixing device; 4. Forming device; 5. Screw conveyor; 6. Rod chamber port; 7. Rodless chamber port; 8. Speed-increasing valve; 9. Rod chamber port two; 10. Rodless chamber port two; 11. Transparent observation window; 12. Material low-level sensor; 13. Material mid-level sensor; 14. Material high-level sensor; 21. Solenoid valve; 31. Motor; 32. Mixing blades; 41. Left bar forming mechanism; 42. Right pellet forming mechanism; 51. Horizontal screw conveyor; 52. Material loosening mechanism; 411. Left forming cylinder; 412. Left connecting seat; 413. Bar forming mold; 414. Quick-connect structure; 415. Anti-blocking structure; 416. Bar stock 417. Sealing assembly; 421. Connecting plate; 422. Right-side forming cylinder; 423. Right-side connecting seat; 424. Quick-connect structure two; 425. Granule forming mold; 521. Loose chamber; 522. Agitator; 4131. Lower mold groove; 4132. Upper mold cover; 4161. Bracket; 4162. Blocking plate; 4163. Torsion spring fixing shaft; 4164. Torsion spring; 4165. Pressure rod; 4166. Eccentric knob structure; 15. Oil circuit; 16. External hydraulic system; 100. Automatic packaging material conveying system; 200. Roller conveying system; 300. Automatic box sealing system; 400. Weighing system; 500. Automatic coding and real-time data upload system; 600. Belt conveyor; 700. Palletizing robot. Detailed Implementation

[0038] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limiting this invention.

[0039] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] The present invention will now be described in further detail with reference to the accompanying drawings.

[0041] Combined with appendix Figure 1 To be continued Figure 9A dual-state forming machine for bar stock and pellets includes a frame 1, a hopper 2 fixedly mounted on the upper end of the frame 1, and a material stirring device 3 at the bottom of the hopper 2. The material stirring device 3 includes a motor 31 fixedly mounted at the bottom of the hopper 2 and stirring blades 32 rotatably mounted at the bottom of the hopper 2. The motor 31 and stirring blades 32 are drivenly connected. A forming device 4 is fixedly mounted on the upper end of the frame 1 and below the hopper 2. The forming device 4 includes a left bar stock forming mechanism 41 and a right pellet forming mechanism 42, which are independent of each other. The left bar stock forming mechanism 41 and the right pellet forming mechanism 42 are respectively connected to the bottom outlet of the hopper 2 through a screw conveyor 5. The left bar stock forming mechanism 41 includes a left forming cylinder 411 and a left connecting seat 412 fixedly mounted on the upper end of the frame 1. The left connecting seat 412 has a cavity inside and its rear side is connected to the screw conveyor 5. The left connecting seat 412 is connected to the left forming cylinder 411 at one end and the other end is fixedly installed with a bar forming mold 413 via a quick-connect structure 414. The bar forming mold 413 adopts an upper and lower separation structure and its bottom is fixedly provided with an anti-blocking material structure 415 for separating the bar forming mold 413. The discharge port of the bar forming mold 413 is fixedly provided with an adjustable pressure bar sealing component 416. The bottom of the hopper 2 is provided with two outlets corresponding to the left bar forming mechanism 41 and the right granule forming mechanism 42, respectively. The bottom of each outlet is connected to the spiral conveying device 5, and each outlet is provided with an electromagnetic valve 21. The side of the hopper 2 is provided with a transparent observation window 11. The bottom, middle and upper parts of the inner wall of the hopper 2 are respectively provided with a low material level sensor 12, a middle material level sensor 13 and a high material level sensor 14 for monitoring the material position.

[0042] In this embodiment, as a preferred technical solution, the bar forming mold 413 includes a lower mold groove 4131 and an upper mold cover 4132. The lower mold groove 4131 is fixedly disposed at one end of the left connecting seat 412 via a quick-connect structure 414. The upper mold cover 4132 abuts against the lower mold groove 4131, and the bottom of the lower mold groove 4131 is fixedly provided with the anti-blocking material structure 415 for driving the upper mold cover 4132 to move upward and separate. The anti-blocking material structure 415 includes an anti-blocking material cylinder, which is fixedly disposed in the lower mold groove 413. The bottom of the lower mold groove 4131 and the piston end of the upper mold cover 4132 are fixedly connected. The bottom of the lower mold groove 4131 and the top of the upper mold cover 4132 are both fixedly provided with connecting plates 417 with arc-shaped inner surfaces. The anti-blocking material cylinder is fixedly installed on the connecting plate at the bottom of the lower mold groove 4131 and its piston end is fixed to the connecting plate at the top of the upper mold cover 4132. When the anti-blocking material cylinder is started, its piston end pushes the upper mold cover 4132 to move upward and separate from the lower mold groove 4131. When the anti-blocking material cylinder is reset, it drives the upper mold cover 4132 to move downward and close with the lower mold groove 4131.

[0043] In this embodiment, as a preferred technical solution, the bar stock sealing assembly 416 includes a bracket 4161 fixed to the outlet end of the upper mold cover 4132. A blocking plate 4162 is hinged to the bottom of the bracket 4161. A pressure rod 4165 that can rotatably press the blocking plate 4162 is installed on the outer end of the bracket 4161 through a torsion spring fixing shaft 4163 and a torsion spring 4164. One end of the bracket 4161 is provided with an eccentric knob structure 4166 for adjusting the torque of the torsion spring 4164. The eccentric knob structure 4166 is composed of... The device consists of a knob and an eccentric wheel that drives it. The knob drives the eccentric wheel to rotate, and the eccentric wheel contacts one end of a torsion spring. As the eccentric wheel rotates, the distal end of the eccentric wheel pushes the end of the torsion spring, thereby changing the compression or deformation angle of the torsion spring and increasing its torque. Reversing the rotation reduces the torque of the torsion spring. With this structure, the operator can adjust the pressure of the bar forming at any time according to the characteristics of the material or the bar forming situation. The knob and eccentric wheel structure are existing technologies and are generally known to those skilled in the art, so they will not be described in detail in this embodiment.

[0044] In this embodiment, as a preferred technical solution, the right-side pellet forming mechanism 42 includes a right-side forming cylinder 421 and a right-side connecting seat 422 that are sequentially fixed on the upper end of the frame 1. The right-side connecting seat 422 has the same structure as the left-side connecting seat 412, and the right-side forming cylinder 421 has the same structure as the left-side forming cylinder 411. The outer end of the right-side connecting seat 422 is fixedly installed with a pellet forming mold 424 through a quick-connect structure 423. The quick-connect structure 423 and quick-connect structure 414 have the same structure. In this embodiment, a flange bolt structure is used to make the pellet forming mold 424 or the bar forming mold 413 detachable and replaceable.

[0045] In this embodiment, as a preferred technical solution, the screw conveying device 5 includes a transverse screw conveyor 51 fixedly mounted on the upper end of the frame 1, and a material loosening mechanism 52 fixedly mounted on the upper end of the transverse screw conveyor 51 and communicating with its inner cavity. The transverse screw conveyor 51 is prior art and typically includes a conveying pipe, an auger, and a drive motor, which will not be described in detail in this embodiment. The material loosening mechanism 52 includes a loosening chamber 521, the upper end of which is connected to the outlet of the hopper, and an agitator 522 for loosening materials is installed inside it. The agitator is prior art and typically includes a drive motor, a stirring shaft, and a stirring rod, which will not be described in detail in this embodiment.

[0046] In this embodiment, as a preferred technical solution, the left forming cylinder 411 is provided with a rod-side port 6 and a rodless port 7. The rod-side port 6 and the rodless port 7 are connected unidirectionally by a speed-increasing valve 8, which is connected to the oil circuit between the rod-side port 6 and the rodless port 7. When oil enters the rodless port 7 and oil exits the rod-side port 6, the hydraulic oil discharged from the rod-side port 6 enters the rodless port 7 through the speed-increasing valve 8. When oil enters the rod-side port 6, the hydraulic oil flowing out of the rodless port 7 directly enters the oil tank. Similarly, the right forming cylinder 421... The device has a rod-side port 9 and a rodless-side port 10, which are connected in one direction by a speed-increasing valve. When oil enters the rodless-side port 10 and oil exits the rod-side port 9, the hydraulic oil discharged from the rod-side port 9 enters the rodless-side port 10 through the speed-increasing valve. When oil enters the rod-side port 9, the hydraulic oil flowing out of the rodless-side port 10 directly enters the oil tank. It should be noted that the left forming cylinder 411 and the right forming cylinder 421 move in opposite directions, that is, when the left forming cylinder 411 extends, the right forming cylinder 421 retracts.

[0047] It should be noted that, since this invention is applied to the molding and processing of powdery and granular materials, the working environment of the equipment is at risk of dust explosion. Based on explosion-proof safety considerations, the drive motors of the motor 31, the transverse screw conveyor 51, and the agitator 522 in this embodiment are all explosion-proof motors. At the same time, a flameless explosion relief device (not shown in the figure) is installed on the hopper 2. This flameless explosion relief device is a mature existing technology and is widely used in the field of tobacco powder waste treatment equipment. Its function is to quickly relieve pressure and block the spread of flame when a dust explosion occurs inside the hopper. Its specific structure and working principle are well known in the field, so they will not be described in detail in this embodiment.

[0048] The working principle of the dual-station independent forming machine for bar stock pellets of this invention is as follows:

[0049] After being stored in silo 2, the material is continuously stirred by material stirring device 3 to prevent bridging. The two outlets at the bottom of silo 2 convey the material quantitatively to the left bar forming mechanism 41 and the right granule forming mechanism 42 via screw conveyor device 5. The left forming cylinder 411 and the right forming cylinder 421 alternately move in opposite directions, pushing the material into their respective forming molds. After being compressed and compacted in the forming cavity of the mold, the material is extruded from the outlet to form bars and granules respectively. The outlet of the left bar forming mold 413 is equipped with a bar sealing component 416, which is connected by a torsion spring 4164 and a pressure rod. The 4165 clamping blockage plate 4162 provides molding back pressure, and the eccentric knob structure 4166 can adjust the torsion spring torque to achieve rapid adjustment of molding pressure. When blockage occurs, the operator can activate the anti-blockage structure 415 to drive the upper mold cover 4132 to separate from the lower mold groove 4131 and clear the blockage material. The hydraulic circuit of the left molding cylinder 411 is equipped with a speed-increasing valve 8, which returns the hydraulic oil discharged from the rod chamber port 6 to the rodless chamber port 7 to achieve differential speed increase, shorten the single molding time, and improve the working efficiency of the molding cylinder. The same applies to the right molding cylinder 421.

[0050] The working process of the bar stock pellet dual-state forming machine of the present invention is as follows:

[0051] 1. The material is put into the silo 2 for centralized storage. The material low-level sensor 12, material mid-level sensor 13 and material high-level sensor 14 installed on the inner wall of the silo 2 monitor the material level in the silo in real time and feed back the detection signal to the external controller (which can be a PLC controller). When the material is consumed to the position of the low-level sensor 12, the external feeding device is activated to replenish the material in the silo 2. The material stirring device 3 at the bottom of the silo 2 continuously stirs the material in the silo 2 to prevent the material from arching or bridging due to moisture, and to ensure that the material can fall smoothly to the two outlets at the bottom of the silo 2.

[0052] 2. Both outlets at the bottom of the silo 2 are equipped with electromagnetic valves 21. The external controller independently controls the opening and closing of the two electromagnetic valves 21 according to the actual working conditions of the left and right forming mechanisms. The material enters the loosening chamber 521 from the outlet. The agitator 522 disperses the material, further breaking up the agglomeration of the material and making the material uniformly loose. Then, the material is fed into the left bar forming mechanism 41 through the rear inlet of the left connecting seat 412 by the auger in the transverse screw conveyor 51 in a quantitative manner. The material is then fed into the right granule forming mechanism 42 through the right connecting seat 422.

[0053] 3. The external hydraulic system drives the left forming cylinder 411 and the right forming cylinder 421 to perform alternating reciprocating motions. Taking the left forming cylinder 411 as an example, when the hydraulic system supplies oil to the rodless chamber port 7 and the rod chamber port 6 returns oil, the piston rod extends forward, pushing the material that has entered the cavity of the left connecting seat 412 into the cavity of the bar forming mold 413. Under the continuous advancement of the piston rod, the material is compressed and compacted in the cavity and continuously extruded from the outlet to form bar stock. Similarly, when the right forming cylinder 421 extends, it squeezes the material on the right side. The right granule forming mold 424 adopts a multi-hole extrusion die, so granules are extruded from the outlet. The left and right forming cylinders operate alternately to achieve continuous forming operation.

[0054] 4. A bar stock blocking assembly 416 is installed at the discharge port of the left bar stock forming mechanism 413. This assembly uses a torsion spring 4164 to apply elastic force to drive the pressure rod 4165 to press the blocking plate 4162, so that the blocking plate 4162 is tightly against the end face of the discharge port, thereby forming a blocking resistance at the discharge port. When the left forming cylinder 411 pushes the material into the forming cavity, the material is continuously pushed forward under the action of extrusion force and squeezes the blocking plate 4162. When the extrusion force is greater than the clamping force of the torsion spring 4164, the blocking plate 4162 is pushed open, and the dense bar stock is discharged from the discharge port. This blocking resistance ensures that the material has sufficient compression and compaction time in the cavity, avoiding loose forming. When encountering materials with different humidity and particle size, the operator can drive the eccentric wheel to rotate by rotating the eccentric knob structure 4166. The eccentric wheel squeezes one end of the torsion spring 4164, thereby changing the torque of the torsion spring and realizing the rapid adjustment of the molding pressure. The knob is locked after rotation by the friction of the damping pad or the ratchet structure.

[0055] 5. If material gets stuck inside the bar forming mold 413 during the bar forming process, the anti-blocking cylinder can be activated. The piston end of the anti-blocking cylinder extends upward and pushes the upper mold cover 4132 upward through the connecting plate 417, so that the upper mold cover 4132 is forcibly separated from the lower mold groove 4131. After the blockage is cleared, the anti-blocking cylinder resets, drives the upper mold cover 4132 to move downward and re-close tightly with the lower mold groove 4131, and the equipment resumes normal forming operation.

[0056] 6. After the left forming cylinder 411 completes the extrusion molding and retracts, the left material screw conveyor 5 replenishes the material into the left connecting seat 412 again, waiting for the next molding cycle; the right granule forming mechanism 42 is the same.

[0057] Reference Appendix Figure 10This is a schematic diagram of the molding process production line where the dual-state molding machine of the present invention is located. The automatic packaging material conveying system 100, roller conveying system 200, automatic box sealing system 300, weighing system 400, automatic coding and real-time data uploading system 500, belt conveyor 600, and palletizing robot 700 shown in the figure are all process supporting equipment other than those of the present invention. They are only used to help understand the overall process of the present invention, so their structures are not described in detail.

[0058] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A dual-state molding machine for rod pellets, comprising a frame (1), a hopper (2) fixedly disposed at the upper end of the frame (1), a material stirring device (3) disposed at the bottom of the hopper (2), and a molding device (4) fixedly disposed at the upper end of the frame (1) and below the hopper (2), characterized in that: The forming device (4) includes a left bar forming mechanism (41) and a right granule forming mechanism (42) that are independent of each other. The left bar forming mechanism (41) and the right granule forming mechanism (42) are respectively connected to the bottom outlet of the hopper (2) through a screw conveyor (5); The left bar forming mechanism (41) includes a left forming cylinder (411) and a left connecting seat (412) fixedly mounted on the upper end of the frame (1). The left connecting seat (412) has a cavity inside and its rear side is connected to the screw conveyor (5). One end of the left connecting seat (412) is connected to the left forming cylinder (411) and the other end is fixedly mounted with a bar forming mold (413) through a quick-connect structure (414). The bar forming mold (413) adopts an upper and lower separation structure and its bottom is fixedly provided with an anti-blocking material structure (415) for closing or separating the bar forming mold (413). The discharge port of the bar forming mold (413) is fixedly provided with an adjustable pressure bar sealing component (416).

2. The bar stock pellet dual-state forming machine according to claim 1, characterized in that: The bar forming die (413) includes a lower die groove (4131) and an upper die cover (4132). The lower die groove (4131) is fixedly disposed at one end of the left connecting seat (412) via a quick-connect structure (414). The upper die cover (4132) abuts against the lower die groove (4131), and the bottom of the lower die groove (4131) is fixedly provided with the anti-blocking material structure (415) for driving the upper die cover (4132) to move upward and separate.

3. The dual-state forming machine for bar stock pellets according to claim 2, characterized in that: The anti-blocking material structure (415) includes an anti-blocking material cylinder, which is fixedly located at the bottom of the lower mold groove (4131) and its piston end is fixedly connected to the upper mold cover (4132).

4. The bar stock pellet dual-state forming machine according to claim 2, characterized in that: The bar stock sealing assembly (416) includes a bracket (4161) fixed to the outlet end of the upper mold cover (4132). A blocking plate (4162) is hinged to the bottom of the bracket (4161). A pressure rod (4165) that can rotatably press the blocking plate (4162) is installed on the outer end of the bracket (4161) through a torsion spring fixing shaft (4163) and a torsion spring (4164). One end of the bracket (4161) is provided with an eccentric knob structure (4166) for adjusting the torque of the torsion spring (4164).

5. The bar stock pellet dual-state forming machine according to claim 1, characterized in that: The right-side pellet forming mechanism (42) includes a right-side forming cylinder (421) and a right-side connecting seat (422) that are fixedly mounted on the upper end of the frame (1). The right-side connecting seat (422) has the same structure as the left-side connecting seat (412), and the right-side forming cylinder (421) has the same structure as the left-side forming cylinder (411). The outer end of the right-side connecting seat (422) is fixedly mounted with a pellet forming mold (424) through a quick-connect structure two (423).

6. The bar stock pellet dual-state forming machine according to claim 1, characterized in that: The bottom of the hopper (2) is provided with two outlets corresponding to the left bar forming mechanism (41) and the right granule forming mechanism (42), respectively. The bottom of each outlet is connected to the spiral conveying device (5), and each outlet is provided with an electromagnetic valve (21).

7. A bar stock pellet dual-state forming machine according to claim 6, characterized in that: The screw conveying device (5) includes a transverse screw conveyor (51) fixedly mounted on the upper end of the frame (1), and a material loosening mechanism (52) fixedly mounted on the upper end of the transverse screw conveyor (51) and communicating with its inner cavity.

8. A bar stock pellet dual-state forming machine according to claim 7, characterized in that: The material loosening mechanism (52) includes a loosening chamber (521), the upper end of which is connected to the outlet of the silo and a stirrer (522) for loosening materials is installed inside it.

9. A bar stock pellet dual-state forming machine according to claim 1, characterized in that: The silo (2) has a transparent observation window (11) on its side. The bottom, middle and upper parts of the inner wall of the silo (2) are respectively equipped with a material low-level sensor (12), a material middle-level sensor (13) and a material high-level sensor (14) for monitoring the material position.

10. A bar stock pellet dual-state forming machine according to claim 5, characterized in that: The left forming cylinder (411) is provided with a rod chamber port (6) and a rodless chamber port (7). The rod chamber port (6) and the rodless chamber port (7) are connected in one direction through a speed-increasing valve (8). When oil enters the rodless chamber port (7) and oil exits the rod chamber port (6), the hydraulic oil discharged from the rod chamber port (6) enters the rodless chamber port (7) through the speed-increasing valve (8). When oil enters the rod chamber port (6), the rodless chamber port (7) is connected to the oil tank and the hydraulic oil flowing out of it directly enters the oil tank.

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