Single-cylinder-driven multi-bin pressing type oil press and using method thereof

Abstract

The invention provides a single-cylinder-driven multi-bin pressing type oil press and a using method thereof, and belongs to the technical field of hydraulic oil pressing. The problem that an existing oil press is low in productivity is solved. The oil press comprises a pressure-bearing frame, a hydraulic cylinder, a plurality of pushing-pressing plates, a plurality of pushing-pressing pistons and a plurality of pressure-bearing bins, the hydraulic cylinder is arranged at the top end of the pressure-bearing frame, the output end of the hydraulic cylinder is connected with the pushing-pressing plates, the pushing-pressing pistons are connected to the lower portions of the pushing-pressing plates, and the pressure-bearing bins are connected to the lower portions of the pushing-pressing plates. The multiple pressure-bearing bins are correspondingly arranged below the multiple pushing and pressing pistons in position, each pressure-bearing bin is of a tubular structure, a plurality of oil outlet holes are formed in the side wall of each tubular structure, the multiple pressure-bearing bins are connected through a connecting plate, and the pushing and pressing plates and the connecting plates are slidably connected with the pressure-bearing frame in the vertical direction; connecting inserting plates are arranged on the two sides of the pushing and pressing plate, a connector is arranged on the connecting plate, and a positioner is arranged on the connecting plate. The device is mainly used for efficient oil pressing.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydraulic oil pressing, and particularly relates to a single-cylinder driven multi-chamber pressing oil press and a using method thereof. Background Art

[0002] Currently, traditional hydraulic oil pressing equipment generally adopts a working mode of single hydraulic cylinder driving a single pressure-bearing chamber. Although the traditional multi-cake peripheral oil outlet type oil press in one chamber can achieve multi-layer cake material stacking pressing, this equipment uses steel ring enclosures or perforated cylinders to restrain materials, and it is necessary to manually stack oil material packages layer by layer and rely on edge infiltration to drain oil. This process causes the oil in the center of the material to need to complete a long-distance radial infiltration before it can precipitate. When the applied pressure is insufficient, the oil cannot be effectively separated, and when the pressure is too high, the oil path is instead compacted and closed to form an oil seal effect, resulting in a decrease in the oil yield. More seriously, a single pressing operation needs to last for more than 12 hours to complete the oil infiltration, and the manual loading and unloading links occupy most of the working time, greatly restricting the industrial production efficiency.

[0003] Existing mainstream oil pressing schemes have not been able to break through the structural limitation of single hydraulic cylinder and single pressure-bearing chamber, forming an irreconcilable contradiction among oil output efficiency, production capacity scale and production cost. There is an urgent need in the industry to develop a new pressing structure to achieve the coordinated improvement of throughput and production efficiency on the premise of ensuring the oil yield, which has great practical significance for promoting the technological upgrading of the edible oil processing industry. Summary of the Invention

[0004] In view of this, the present invention aims to propose a single-cylinder driven multi-chamber pressing oil press and a using method thereof to solve the problem of low production capacity of existing oil presses.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A single-cylinder driven multi-chamber pressing oil press, which includes a pressure-bearing frame, a hydraulic cylinder, a push plate, a push piston and a pressure-bearing chamber. The pressure-bearing frame is of a vertical structure and is arranged along the vertical direction. The hydraulic cylinder is arranged at the top of the pressure-bearing frame, and the output end of the hydraulic cylinder is connected to the push plate. The number of the push pistons and the pressure-bearing chambers are both multiple. A plurality of push pistons are connected below the push plate, and a plurality of pressure-bearing chambers are correspondingly arranged below the plurality of push pistons. The pressure-bearing chamber is of a tubular structure, and a plurality of oil outlet holes are opened on the side wall of the tubular structure. The plurality of pressure-bearing chambers are arranged on the pressure-bearing frame, and the plurality of pressure-bearing chambers are connected by a connecting plate. The push plate and the connecting plate are both slidably connected to the pressure-bearing frame along the vertical direction. Connecting inserts are arranged on both sides of the push plate, a connector is arranged on the connecting plate, and a locator is arranged on the connecting plate.

[0006] Furthermore, the pressure-bearing frame includes a pressure-bearing upper cover, connecting columns, and a pressure-bearing base. The pressure-bearing upper cover is arranged above the pressure-bearing base, and the pressure-bearing upper cover and the pressure-bearing base are connected by a plurality of connecting columns. The hydraulic cylinder is connected to the pressure-bearing upper cover, and the plurality of pressure-bearing chambers are arranged on the pressure-bearing base. Both the push plate and the connecting plate are slidably connected to the connecting columns.

[0007] Furthermore, the connecting plate includes an upper connecting plate and a lower connecting plate. The upper connecting plate is arranged at the upper end of the pressure-bearing chamber, and the lower connecting plate is arranged at the lower end of the pressure-bearing chamber.

[0008] Furthermore, both the connector and the locator are of a sliding bolt type structure or a structure where an electric motor drives a bolt to slide. A plurality of connecting holes are vertically formed in the connecting plug plate, and the connecting holes correspond to the positions of the connectors. A plurality of positioning holes are vertically formed in the connecting columns, and the locators correspond to the positions of the positioning holes.

[0009] Furthermore, a connector is arranged on the upper connecting plate, and locators are arranged on both the upper connecting plate and the lower connecting plate.

[0010] Furthermore, a feed bin is arranged above the plurality of pressure-bearing chambers.

[0011] Furthermore, a feeding mechanism is arranged on one side of the feed bin, and the feeding mechanism is a conveyor belt or an auger.

[0012] Furthermore, a pushing hydraulic cylinder is arranged on one side of the pressure-bearing base, and a feeding conveyor belt is arranged on the other side.

[0013] Furthermore, the inner diameter of the pressure-bearing chamber is 6 - 8 cm, the length is 60 - 80 cm, and the wall thickness is 1 - 2 cm. The oil outlet hole is a tapered oil outlet hole with a smaller inner diameter and a larger outer diameter, with an inner diameter of 1.5 - 2 mm, an outer diameter of 5 - 6 mm, and a hole pitch of 1 - 2 cm.

[0014] The present invention also provides a usage method of a single-cylinder driven multi-chamber squeezing oil press, which includes the following steps:

[0015] Step 1: The output end of the hydraulic cylinder moves upward, driving all the push pistons to be lifted upward through the push plate until the distance between the bottom of the push piston and the pressure-bearing chamber is 15 cm, and the oil material is put into the pressure-bearing chamber from above.

[0016] Step 2: Start the hydraulic cylinder, and the output end of the hydraulic cylinder moves downward, driving all the push pistons to press downward through the push plate, so that the push pistons squeeze the oil material in the pressure-bearing chamber for oil pressing. The squeezed oil flows out through the oil outlet hole until no oil can be squeezed out from the oil material.

[0017] Step 3: Connect the connector to the connection plate. The hydraulic cylinder drives the push plate to rise. Under the action of the connector and the connection plate, all the pressure-bearing bins are driven to rise simultaneously. After rising to the set height, connect the positioner to the pressure-bearing frame, control the connector to disconnect from the connection plate, and the hydraulic cylinder drives all the push pistons to descend, pushing out the pressed oil from the bottom of the pressure-bearing bin and transporting it away to complete the unloading.

[0018] Step 4: Connect the connector to the connection plate, control the positioner to disconnect from the pressure-bearing frame, and the hydraulic cylinder drives the push plate to descend, simultaneously driving all the pressure-bearing bins to descend until the pressure-bearing bins return to their original positions.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] The present invention adopts a single hydraulic cylinder and multi-bin synchronous pressing structure, fundamentally breaking through the production capacity bottleneck of traditional equipment. Through 6 - 8 independent pressure-bearing bins arranged vertically to achieve parallel operation, the single processing capacity reaches 8 times that of the traditional multi-cake model with one bin, and the production capacity is increased by 20 times compared with the one-cake-one-bin model. With the coordinated control among components, each pressure-bearing bin can synchronously complete the feeding, pressing, and unloading processes. The one-time operation time is reduced from the original 12 hours to 8 minutes. Combined with the automated system composed of a conveyor belt and a pusher hydraulic cylinder, the manual intervention amount is reduced by 85%, realizing continuous industrial production.

[0021] The tubular pressure-bearing bin structure of the present invention combined with the conical oil outlet hole design effectively optimizes the hydrodynamic characteristics of oil penetration. It is convenient for the oil to quickly shift from the oil material to the outside of the pressure-bearing bin during extrusion. The oil migration distance is shortened. Combined with the conical oil outlet hole with a smaller inner diameter and a larger outer diameter to form a gradient pressure release channel, the oil path closure effect can be avoided, reducing the residual oil rate of the material and increasing the oil yield by more than 3%. The unique piston pressing plate stroke control ensures uniform application of pressure and reduces the amount of oil residue overflow.

[0022] The present invention realizes the movement of the pressure-bearing bin through the cooperation of the connector and the positioner, and the effective operation time of the equipment is improved compared with the traditional model. Through actual testing, the daily processing capacity of a single 600-ton-level equipment is equivalent to the production capacity of 20 traditional 1000-ton-level equipment, and the energy consumption is lower than that of the traditional model, reducing the production cost while increasing the production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0024] Figure 1 It is the front view structural schematic diagram of a single-cylinder-driven multi-bin pressing oil press described in the present invention;

[0025] Figure 2For the present invention Figure 1 Schematic diagram of the A-A sectional structure;

[0026] Figure 3 Schematic diagram of the vertical sectional structure of a single-cylinder driven multi-bin squeezing oil press according to the present invention;

[0027] Figure 4 Schematic diagram of the enlarged structure of the oil outlet hole according to the present invention;

[0028] Figure 5 Schematic diagram of the usage method of a single-cylinder driven multi-bin squeezing oil press according to the present invention Figure 1 ;

[0029] Figure 6 Schematic diagram of the usage method of a single-cylinder driven multi-bin squeezing oil press according to the present invention Figure 2 ;

[0030] Figure 7 Schematic diagram of the usage method of a single-cylinder driven multi-bin squeezing oil press according to the present invention Figure 3 ;

[0031] Figure 8 Schematic diagram of the usage method of a single-cylinder driven multi-bin squeezing oil press according to the present invention Figure 4 .

[0032] In the figure:

[0033] 1 - hydraulic cylinder, 2 - pressure-bearing upper cover, 3 - push plate, 4 - connecting column, 5 - push piston, 6 - connecting plug, 7 - connecting upper plate, 8 - connecting lower plate, 9 - feed bin, 10 - pressure-bearing bin, 11 - pressure-bearing base, 12 - connecting hole, 13 - connector, 14 - positioning hole, 15 - positioner, 16 - oil outlet hole. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0035] See Figures 1-4Description of this embodiment: A single-cylinder driven multi-chamber squeezing oil press, which includes a pressure-bearing frame, a hydraulic cylinder 1, a push plate 3, a push piston 5, and a pressure-bearing chamber 10. The pressure-bearing frame is of a vertical structure and is arranged in the vertical direction. The hydraulic cylinder 1 is arranged at the top of the pressure-bearing frame. The output end of the hydraulic cylinder 1 is connected to the push plate 3. The number of the push pistons 5 and the pressure-bearing chambers 10 are both multiple. A plurality of push pistons 5 are connected below the push plate 3, and a plurality of pressure-bearing chambers 10 are correspondingly arranged below the plurality of push pistons 5. The pressure-bearing chamber 10 is of a tubular structure, and a plurality of oil outlet holes 16 are opened on the side wall of the tubular structure. The plurality of pressure-bearing chambers 10 are arranged on the pressure-bearing frame, and the plurality of pressure-bearing chambers 10 are connected by a connecting plate. The push plate 3 and the connecting plate are both slidably connected to the pressure-bearing frame in the vertical direction. Connecting plug plates 6 are arranged on both sides of the push plate 3, a connector 13 is arranged on the connecting plate, and a positioner 15 is arranged on the connecting plate.

[0036] In this embodiment, a single hydraulic cylinder 1 drives a plurality of push pistons 5, and the plurality of push pistons 5 respectively press the oil materials in the plurality of pressure-bearing chambers 10 to realize oil pressing. After the oil pressing is completed, under the action of the connector 13 and the connecting plug plate 6, all the pressure-bearing chambers 10 are driven to move upward by the hydraulic cylinder 1. After the positions of the pressure-bearing chambers 10 are locked by the positioner 15, the pressed oil materials can be pushed out by the push pistons 5 to complete unloading. Through the solution of this application, an integrated production solution for oil pressing and unloading can be realized, and the working efficiency is high.

[0037] In this embodiment, the pressure-bearing frame includes a pressure-bearing upper cover 2, connecting columns 4, and a pressure-bearing base 11. The pressure-bearing upper cover 2 is arranged above the pressure-bearing base 11. The pressure-bearing upper cover 2 and the pressure-bearing base 11 are connected by a plurality of connecting columns 4. The hydraulic cylinder 1 is connected to the pressure-bearing upper cover 2. The plurality of pressure-bearing chambers 10 are arranged on the pressure-bearing base 11. The push plate 3 and the connecting plate are both slidably connected to the connecting columns 4. The pressure-bearing upper cover 2 and the pressure-bearing base 11 are used for the installation of other components. The connecting columns 4 not only play a role in connecting the pressure-bearing upper cover 2 and the pressure-bearing base 11, but also can guide the sliding of the push plate 3 and the connecting plate.

[0038] In this embodiment, the connecting plate includes a connecting upper plate 7 and a connecting lower plate 8. The connecting upper plate 7 is arranged at the upper end of the pressure-bearing chamber 10, and the connecting lower plate 8 is arranged at the lower end of the pressure-bearing chamber 10. The plurality of pressure-bearing chambers 10 are connected into a whole structure by the connecting upper plate 7 and the connecting lower plate 8 to realize the synchronous up and down sliding of all the pressure-bearing chambers 10.

[0039] In this embodiment, both the connector 13 and the locator 15 are of a sliding bolt type structure or a structure where a motor drives the bolt to slide. A plurality of connection holes 12 are provided in the connection plugboard 6 in the vertical direction, and the connection holes 12 correspond to the positions of the connectors 13. A plurality of positioning holes 14 are provided in the connection column 4 in the vertical direction, and the locator corresponds to the positions of the positioning holes 14. Inserting the bolt of the connector 13 into the connection hole 12 of the connection plugboard 6 can achieve the connection between the push plate 3 and the connection plate, thereby driving all the pressure-bearing bins 10 to move synchronously. Inserting the bolt of the locator 15 into the positioning hole 14 can achieve the locking of the position of the connection column 4 and the connection plate, thereby realizing the position locking of all the pressure-bearing bins 10 and the pressure-bearing frame. When the push piston 5 moves downward, the position of the pressure-bearing bin 10 remains unchanged, so that the pressed oil is pushed out from the pressure-bearing bin 10 to complete the discharging.

[0040] In this embodiment, the connector 13 is provided on the upper connection plate 7, and the locator 15 is provided on both the upper connection plate 7 and the lower connection plate 8 to ensure stable connection.

[0041] In this embodiment, a feed bin 9 is provided above the plurality of pressure-bearing bins 10. The feed bin 9 surrounds the oil inlets at the upper ends of all the pressure-bearing bins 10, enabling the oil to better enter the pressure-bearing bins 10. A feeding mechanism is provided on one side of the feed bin 9, and the feeding mechanism is a conveyor belt or a screw conveyor. The oil is conveyed through the feeding mechanism and enters the pressure-bearing bins 10 through the feed bin 9.

[0042] A push rod hydraulic cylinder is provided on one side of the pressure-bearing base 11, and a feeding conveyor belt is provided on the other side. After the push piston 5 pushes the pressed oil out of the pressure-bearing bin 10 and it lands on the pressure-bearing base 11, the push rod hydraulic cylinder pushes the pressed oil off the pressure-bearing base 11, making it land on the feeding conveyor belt. The pressed oil is transported out through the feeding conveyor belt to start a new round of oil pressing work.

[0043] Preferably, in this embodiment, the inner diameter of the pressure-bearing bin 10 is 6 - 8 cm, the length is 60 - 80 cm, and the wall thickness is 1 - 2 cm. The oil outlet hole 16 is a tapered oil outlet hole with a smaller inner diameter and a larger outer diameter, with an inner diameter of 1.5 - 2 mm, an outer diameter of 5 - 6 mm, and a hole pitch of 1 - 2 cm. This is to facilitate the rapid displacement of the oil from the oil material to the outside of the pressure-bearing bin 10 during extrusion.

[0044] See Figures 5-8 To illustrate this embodiment, the present invention also provides a method for using a single-cylinder driven multi-bin oil press, which includes the following steps:

[0045] Step 1: The output end of the hydraulic cylinder 1 moves upward, driving all the push pistons 5 to be lifted upward through the push plate 3 until the distance between the bottom of the push piston 5 and the pressure-bearing bin 10 is 15 cm, and the oil material is put into the pressure-bearing bin 10 from above;

[0046] Step 2: Start the hydraulic cylinder 1. The output end of the hydraulic cylinder 1 moves downward, drives all the pressing pistons 5 to press downward through the pressing plate 3, so that the pressing pistons 5 squeeze the oil material in the pressure-bearing bin 10 for oil extraction. The extracted oil flows out through the oil outlet hole 16 until no oil can be squeezed out from the oil material;

[0047] Step 3: Connect the connector 13 with the connection plug board 6. The hydraulic cylinder 1 drives the pressing plate 3 to rise. Under the action of the connector 13 and the connection plug board 6, all the pressure-bearing bins 10 are driven to rise together. After rising to the set height, connect the positioner 15 with the pressure-bearing frame, control the connector 13 to disconnect from the connection plug board 6, and the hydraulic cylinder 1 drives all the pressing pistons 5 to descend, push out the pressed oil material from the bottom of the pressure-bearing bin 10 and transport it away to complete unloading;

[0048] Step 4: Connect the connector 13 with the connection plug board 6, control the positioner 15 to disconnect from the pressure-bearing frame, and the hydraulic cylinder 1 drives the pressing plate 3 to descend, and at the same time drives all the pressure-bearing bins 10 to descend together until the pressure-bearing bins 10 return to their original positions again.

[0049] The specific embodiments of the present invention disclosed above are only used to help illustrate the present invention. The specific embodiments do not describe all the details in detail, nor limit the invention to the specific embodiments described. According to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention.

Claims

1. A single-cylinder driven multi-compartment press oil press, characterized in that: It comprises a pressure-bearing frame, a hydraulic cylinder (1), a pushing plate (3), a pushing piston (5) and a pressure-bearing chamber (10); the pressure-bearing frame is a vertical structure and is arranged in the vertical direction; the hydraulic cylinder (1) is arranged at the top of the pressure-bearing frame; the output end of the hydraulic cylinder (1) is connected to the pushing plate (3); the pushing pistons (5) and the pressure-bearing chamber (10) are both multiple in number; multiple pushing pistons (5) are connected below the pushing plate (3); and the positions of multiple pressure-bearing chambers (10) are correspondingly arranged at multiple pushing pistons (5). Below the plug (5), the pressure-bearing chamber (10) is a tubular structure, and a plurality of oil outlet holes (16) are opened on the side wall of the tubular structure. The plurality of pressure-bearing chambers (10) are arranged on a pressure-bearing frame, and the plurality of pressure-bearing chambers (10) are connected via a connecting plate. The push plate (3) and the connecting plate are both slidably connected to the pressure-bearing frame in a vertical direction. Connecting plug plates (6) are arranged on both sides of the push plate (3), a connector (13) is arranged on the connecting plate, and a positioner (15) is arranged on the connecting plate.

2. A single-cylinder driven multi-compartment oil press according to claim 1, characterized in that: The pressure-bearing frame comprises a pressure-bearing upper cover (2), a connecting column (4) and a pressure-bearing base (11); the pressure-bearing upper cover (2) is arranged above the pressure-bearing base (11); the pressure-bearing upper cover (2) and the pressure-bearing base (11) are connected via a plurality of connecting columns (4); the hydraulic cylinder (1) is connected to the pressure-bearing upper cover (2); the plurality of pressure-bearing chambers (10) are arranged on the pressure-bearing base (11); and the push plate (3) and the connecting plate are both slidably connected to the connecting column (4).

3. The single-cylinder driven multi-compartment oil press according to claim 2, characterized in that: The connecting plate comprises an upper connecting plate (7) and a lower connecting plate (8); the upper connecting plate (7) is arranged at the upper end of the pressure-bearing bin (10), and the lower connecting plate (8) is arranged at the lower end of the pressure-bearing bin (10).

4. The single-cylinder driven multi-compartment oil press according to claim 3, characterized in that: The connector (13) and the positioner (15) are both of a sliding pin type structure or a motor-driven pin sliding type structure; the connecting plug plate (6) is provided with a plurality of connecting holes (12) in a vertical direction, the connecting holes (12) and the connector (13) are located in corresponding positions; the connecting column (4) is provided with a plurality of positioning holes (14) in a vertical direction, the positioner and the positioning holes (14) are located in corresponding positions.

5. The single-cylinder driven multi-compartment oil press according to claim 4, characterized in that: A connector (13) is provided on the upper connection plate (7), and positioners (15) are provided on both the upper connection plate (7) and the lower connection plate (8).

6. The single-cylinder driven multi-compartment oil press according to claim 1, characterized in that: A feed bin (9) is arranged above the multiple pressure bins (10).

7. The single-cylinder driven multi-compartment oil press according to claim 6, characterized in that: A feeding mechanism is arranged on one side of the feed bin (9), and the feeding mechanism is a conveyor belt or an auger.

8. The single-cylinder driven multi-compartment oil press according to claim 2, characterized in that: A material pushing hydraulic cylinder is arranged on one side of the pressure bearing base (11), and a material feeding conveyor belt is arranged on the other side.

9. The single-cylinder driven multi-compartment oil press according to claim 1, characterized in that: The pressure chamber (10) has an inner diameter of 6-8 cm, a length of 60-80 cm, and a wall thickness of 1-2 cm. The oil outlet holes (16) are tapered oil outlet holes that are smaller inside and larger outside, with an inner diameter of 1.5-2 mm, an outer diameter of 5-6 mm, and a hole spacing of 1-2 cm.

10. A method for using the single-cylinder driven multi-compartment oil press as claimed in claim 1, characterized in that: It includes the following steps: Step 1: The output end of the hydraulic cylinder (1) moves upward, and drives all the pushing pistons (5) to be lifted upward through the pushing plate (3), until the distance between the bottom of the pushing piston (5) and the pressure chamber (10) is 15 cm, and the oil is put into the pressure chamber (10) from the top; Step 2: Start the hydraulic cylinder (1), the output end of the hydraulic cylinder (1) moves downward, and drives all the pushing pistons (5) to press downward through the pushing plate (3), so that the pushing pistons (5) squeeze the oil in the pressure chamber (10) to squeeze the oil, and the squeezed oil flows out through the oil outlet hole (16) until no more oil can be squeezed out of the oil; Step 3: Connect the connector (13) to the connecting plug plate (6), and the hydraulic cylinder (1) drives the push plate (3) to rise. Under the action of the connector (13) and the connecting plug plate (6), all the pressure bins (10) are driven to rise together. After rising to the set height, the positioner (15) is connected to the pressure frame, and the connector (13) is controlled to release the connection with the connecting plug plate (6). The hydraulic cylinder (1) drives all the push pistons (5) to descend, and the squeezed oil is pushed out from the bottom of the pressure bin (10) and transported away, completing the unloading; Step 4: Connect the connector (13) to the connecting plug plate (6), control the positioner (15) to release the connection with the pressure frame, and the hydraulic cylinder (1) drives the push plate (3) to descend, and at the same time drives all the pressure chambers (10) to descend together until the pressure chambers (10) return to their original positions.

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