Lifting system for rubber cutting

Abstract

The invention discloses a lifting system for rubber cutting, and relates to the field of rubber block transportation, the lifting system comprises a conveying assembly, a hoisting lifting frame and a pair of cutters which are arranged above the conveying assembly and pushing and positioning assemblies, and a lifting assembly arranged at the tail end of the conveying assembly in the length direction of a rubber block, and the pushing and positioning assemblies are arranged on the two sides of the conveying assembly correspondingly; the lifting assembly comprises a first lifting seat and a positioning mounting seat which are arranged in parallel, a driving roller and a relay roller are arranged on the positioning mounting seat, a lifting roller is arranged at the lifting end of the first lifting seat, a first conveying belt sleeves the outer sides of the driving roller, the relay roller and the lifting roller, and a first shifting plate is arranged on the first conveying belt; the rubber block cutting device has the technical advantages that a pair of cutters is arranged to cut a rubber block in the length direction, positioning of the rubber block before cutting can be achieved through the pushing and pressing positioning assemblies on the two sides, and meanwhile sequential transferring in the later cutting period can also be achieved; and fixed-height lifting and sending out of the cut rubber blocks can be achieved through the conveying assembly and the lifting assembly.

Description

Technical Field

[0001] This application relates to the field of rubber block transportation, and particularly to a lifting system for rubber cutting. Background Art

[0002] Rubber, together with petroleum, steel, and coal, is known as the world's four major industrial raw materials and is an important strategic resource indispensable for national defense and industrial construction. Rubber is mainly divided into natural rubber and synthetic rubber. Natural rubber refers to the natural latex collected from the Hevea brasiliensis tree and is an elastic solid made through processes such as coagulation and drying. Synthetic rubber is an artificially synthesized highly elastic polymer, also known as synthetic elastomer. Broadly speaking, it refers to rubber manufactured by chemical methods, to distinguish it from natural rubber produced from rubber trees. The types of synthetic rubber products are more diverse and refined than natural rubber, and their good comprehensive performance makes them perform more excellently in terms of special properties. Therefore, in addition to being able to partially replace natural rubber, in actual production, synthetic rubber is mostly used in combination with natural rubber to improve the final use performance of rubber products. Currently, China is the world's largest consumer of natural rubber and the world's largest tire producer. The rapid development of the tire industry has driven the rapid growth of natural rubber consumption.

[0003] According to the requirements of the import and export rubber inspection rules, it is necessary to conduct sampling inspections on the quality of imported and exported rubber, including important indicators such as rubber plasticity, nitrogen content, volatile matter, and ash content. The representativeness and accuracy of the test results of these indicators are based on the rubber samples taken. Therefore, whether the samples taken are uniform and standardized will directly determine the quality determination results of imported and exported rubber; according to standards such as ISO1795-2017, GB / T15340-2008, and SN / T0541.1-2010, it is necessary to use a lubricant-free tool to cut through two diagonals of the rubber bale perpendicular to the largest surface of the rubber bale to obtain a sample weighing 150g - 1500g; in actual operation, due to the toughness and hardness of the rubber block, the resistance suffered when manually holding the tool to cut back and forth is relatively large, and it becomes more laborious the deeper the cut, resulting in it being difficult to ensure that the cut is always perpendicular to the largest surface during the process. Manual sampling is not only time-consuming and laborious, but the samples taken are also difficult to meet the standard requirements. Summary of the Invention

[0004] This system provides a lifting system for rubber cutting, and the specific implementation is as follows:

[0005] A lifting system for rubber cutting includes:

[0006] A conveying component for conveying rubber blocks along the length direction, and push-pressing positioning components acting inwardly on the width direction of the rubber blocks are respectively arranged on both sides of the conveying component;

[0007] A hoisting lifting frame and a pair of cutting knives arranged above the conveying assembly and the pushing and positioning assembly. The cutting knives cut off the middle section of the rubber block. The surface of the conveyor belt of the conveying assembly is provided with second shifting plates at intervals;

[0008] A lifting assembly arranged at the end of the conveying assembly along the length direction of the rubber block, which includes a first lifting seat and a positioning and mounting seat arranged in parallel. A driving roller and a relay roller are arranged on the positioning and mounting seat. A lifting roller is arranged at the lifting end of the first lifting seat. A first conveyor belt is sleeved outside the driving roller, the relay roller and the lifting roller. And a first shifting plate is arranged along the conveying direction of the first conveyor belt. The middle section of the cut rubber block is lifted and conveyed outwards through the second shifting plate and the first shifting plate, and the lifting height is adjustable through the first lifting seat.

[0009] Based on the above technical solutions, the cutting of the rubber block along the length direction is realized by setting a pair of cutting knives. And through the pushing and positioning assemblies on both sides, the positioning of the rubber block before cutting can be realized, and at the same time, the sequential transfer after cutting can also be realized; the fixed-height lifting and sending out of the cut rubber block can be realized through the conveying assembly and the lifting assembly. The first shifting plate and the second shifting plate realize the transfer and pushing of the cut rubber block along the width direction; the pair of cutting knives are of equal length and the spacing can be freely adjusted.

[0010] Preferably, a distance adjusting structure and a driving assembly are arranged on the hoisting lifting frame. The pair of cutting knives are both slidably connected to the hoisting lifting frame through sliding plates; the driving assembly includes a first motor, the output end of which is connected with a driving gear, and the sliding plates are respectively meshed with the upper and lower sides of the driving gear through racks.

[0011] Preferably, a closing and opening assembly acting on the cutting knives is further included, which includes a positioning rod connected to the sliding plate. The cutting knives are arranged at the ends of the positioning rod; on the positioning rod, closing and opening plates are arranged on both sides of the cutting knives through a linkage member, and the sides of the two closing and opening plates facing the knife handle of the cutting knife are in a shape of expanding diameter.

[0012] Preferably, the linkage member includes a sliding sleeve slidably arranged outside the positioning rod, and a first positioning sleeve and a second positioning sleeve fixedly arranged outside the positioning rod; the first positioning sleeve and the second positioning sleeve are respectively rotatably connected to the closing and opening plates through a first connecting rod and a third connecting rod, and a spring is arranged between the second positioning sleeve and the sliding sleeve.

[0013] Based on the above technical solution, a folding and unfolding component with an elastic effect is provided. When the cutting knife cuts into the rubber block and generates a cut, the folding and unfolding plates on both sides will quickly come into play. The folding and unfolding plates themselves are endowed with elastic properties. When the cutting knife completes the cutting action, the folding and unfolding plates rely on their elastic potential energy to immediately apply an outward acting force to both sides of the cut. This elastic action is not a rigid extrusion or pulling, but a gentle and continuous expanding force, enabling the cut to be expanded smoothly and evenly. As the cut expands, the originally tightly fitting cross-section of the rubber block is moderately separated, which reduces the resistance faced by the cutting knife in the subsequent cutting process. When the cutting knife cuts in again, it no longer needs to overcome the strong friction generated by the tight fitting of the rubber block material and can penetrate deeper into the rubber block more smoothly, greatly shortening the cutting time. The expansion of the cut effectively releases the stress inside the rubber block, avoiding problems such as unsmooth cutting or uneven cuts caused by stress concentration. Through the effective expansion of the cut by this elastic folding and unfolding component, the entire cutting process becomes more efficient and stable.

[0014] Preferably, the positioning rod is a cavity structure with a cylinder built-in. The linkage member is slidably disposed on the positioning rod through a sliding cylinder, and the sliding sleeve, the first positioning sleeve, and the second positioning sleeve are all connected to the sliding cylinder. A conduction groove is opened on the side of the positioning rod, and the sliding cylinder passes through the conduction groove and is provided with a connecting plate inward, and the output end of the cylinder is connected to the connecting plate.

[0015] Based on the above technical solution, to effectively protect the cutting knife and prevent it from being damaged by bumps after the cutting operation, an intelligent protection mechanism is adopted. A cylinder is installed inside the positioning rod and is paired with a pressure sensor. During the entire cutting process, the pressure sensor always remains in a working state, constantly capturing the subtle changes in the pressure borne by the folding and unfolding plates. As the cutting operation progresses, when approaching the end of the rubber block cutting, since the remaining part of the rubber block continuously decreases, the pressure acting on the folding and unfolding plates will show a sharp drop. This pressure change signal is captured by the pressure sensor. After receiving the signal, the controller quickly responds, and the cylinder pushes the sliding cylinder outwards, and the two folding and unfolding plates connected to it start to move forward. During the movement, the two folding and unfolding plates gradually close, forming a relatively enclosed space, and the two folding and unfolding plates wrap the cutting knife in the internal space.

[0016] Preferably, the pushing and positioning assembly includes a bottom plate and a translation positioning plate slidably disposed above the bottom plate, and a sliding driving structure is built in the bottom plate.

[0017] Preferably, the translation positioning plate is in a U-shaped structure, and its two sides are set as L-shaped telescopic structures through driving parts.

[0018] Based on the above technical solutions, the driving part and the sliding driving structure are both conventional cylinder or electric drive lead screw structures; the U-shaped of the translation positioning plate can be set as a cover structure, so that the rubber block also has a vertical positioning effect; electric clamping plates can also be arranged at the ends of the translation positioning plate to position the four corner edges of the rubber block to assist in separating and cutting the rubber sample.

[0019] Preferably, the hoisting and lifting frame includes a hoisting seat, the hoisting seat is connected with a lifting plate downward through an automatic telescopic member, and the first motor is vertically installed on the lifting plate.

[0020] In summary, the present application includes the following beneficial technical effects:

[0021] 1. The present invention realizes the cutting of the rubber block along the length direction by setting a pair of cutting knives, and the positioning of the rubber block before cutting can be realized through the pushing and positioning components on both sides, and the sequential transfer in the later stage of cutting can also be realized; the cut rubber block can be lifted and sent out at a fixed height through the conveying component and the lifting component, and the first shifting plate and the second shifting plate realize the transfer and pushing of the cut rubber block along the width direction;

[0022] 2. In the present invention, by setting the opening and closing component with an elastic effect, after the cutting knife generates a cut on the rubber block, the opening and closing plates on both sides elastically act on the cut, so that the cut is expanded, thereby effectively improving the cutting efficiency;

[0023] 3. In the present invention, by installing a cylinder in the positioning rod and sensing the pressure change of the opening and closing plate with the help of a pressure sensor, when cutting to the end, the pressure of the rubber block acting on the opening and closing plate drops suddenly, and then the sliding cylinder is pushed out by the cylinder, so that the two opening and closing plates move forward and close to enclose the cutting knife, preventing the cutting knife from being knocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the structural schematic of the present invention Figure 1 ;

[0025] Figure 2 is the structural schematic of the present invention Figure 2 ;

[0026] Figure 3 is the structural schematic of the present invention Figure 3 ;

[0027] Figure 4 is the enlarged structural view of the opening and closing component in the present invention;

[0028] Figure 5 is the structural schematic of the hoisting and lifting frame and the opening and closing component in the present invention Figure 1 ;

[0029] Figure 6 is the structural schematic of the hoisting and lifting frame and the opening and closing component in the present inventionFigure 2 ;

[0030] Figure 7 is an exploded structural schematic diagram of the opening and closing assembly in the present invention;

[0031] Figure 8 is a structural schematic diagram of the opening and closing assembly in the present invention.

[0032] Description of the reference numerals in the drawings:

[0033] 1, lifting assembly; 2, pushing and positioning assembly; 3, conveying assembly; 4, hoisting and lifting frame; 5, opening and closing assembly; 6, driving assembly; 7, cutting knife; 10, rubber block

[0034] 101, first lifting seat; 102, positioning and mounting seat; 103, first conveyor belt; 104, first shifting plate; 201, bottom plate; 202, translation positioning plate; 301, second shifting plate; 401, lifting plate; 402, automatic telescopic member; 403, hoisting seat; 501, opening and closing plate; 502, positioning rod; 503, sliding plate; 504, rack; 505, cylinder; 506, sliding cylinder; 507, linkage member; 508, spring; 5021, conduction groove; 5061, connecting plate; 5071, first positioning sleeve; 5072, second positioning sleeve; 5073, sliding sleeve; 5074, first connecting rod; 5075, second connecting rod; 5076, third connecting rod; 601, driving gear; 602, first motor. Detailed implementation manners

[0035] The following describes the specific implementation manners of the present invention in conjunction with the drawings and embodiments:

[0036] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present invention. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present invention can cover.

[0037] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear narration, and are not used to limit the implementation scope of the present invention. The change or adjustment of their relative relationship, without substantial change of the technical content, should also be regarded as the scope that the present invention can implement.

[0038] The following further elaborates on Figure 1-8 this application for a more detailed description.

[0039] An embodiment of this application discloses a lifting system for rubber cutting.

[0040] Example 1

[0041] Reference Figures 1 to 6 , this embodiment discloses a lifting system for rubber cutting, which includes a conveying component 3 for conveying rubber blocks 10 in the length direction, a hoisting and lifting frame 4 arranged above the conveying component 3 and the pushing and positioning component 2, and a pair of cutting knives 7, and a lifting component 1 arranged at the end of the conveying component 3 along the length direction of the rubber block 10. Pushing and positioning components 2 acting inwardly in the width direction of the rubber block 10 are respectively arranged on both sides of the conveying component 3. The cutting knife 7 cuts off the middle section of the rubber block 10, and second shifting plates 301 are arranged at intervals on the surface of the conveyor belt of the conveying component 3.

[0042] The lifting component 1 includes a first lifting seat 101 and a positioning and mounting seat 102 arranged in parallel. A driving roller and a relay roller are arranged on the positioning and mounting seat 102. A lifting roller is arranged at the lifting end of the first lifting seat 101. A first conveyor belt 103 is sleeved outside the driving roller, the relay roller and the lifting roller, and a first shifting plate 104 is arranged along the conveying direction of the first conveyor belt 103. The middle section of the cut rubber block 10 is lifted and conveyed outwards through the second shifting plate 301 and the first shifting plate 104, and the lifting height is adjustable through the first lifting seat 101.

[0043] A distance adjusting structure and a driving component 6 are arranged on the hoisting and lifting frame 4. A pair of cutting knives 7 are both slidably connected to the hoisting and lifting frame 4 through sliding plates 503. In this structure, the driving component 6 includes a first motor 602, and the output end of the first motor is connected with a driving gear 601. The sliding plates 503 are respectively meshed with the upper and lower sides of the driving gear 601 through racks 504. The hoisting and lifting frame 4 includes a hoisting seat 403, and the hoisting seat 403 is downwardly connected with a lifting plate 401 through an automatic telescopic member 402, and the first motor 602 is vertically installed on the lifting plate 401.

[0044] The pushing and positioning component 2 includes a bottom plate 201 and a translation and positioning plate 202 slidably arranged above the bottom plate 201. A sliding driving structure is arranged inside the bottom plate 201. In this structure, the translation and positioning plate 202 has a U-shaped structure, and its two sides are set as L-shaped telescopic structures through driving parts.

[0045] The specific implementation process is as follows: Place the rubber block 10 directly above the bottom plate 201 and the conveying component 3; Translate the positioning plate 202 inward to clamp and position it on the rubber block 10; Start the first motor 602, and the two racks 504 act synchronously to complete the adjustment of the distance between the pair of cutting knives 7; Start the hoisting lifting frame 4, and the two cutting knives 7 act downward on the rubber block 10 to cut off the middle section of the rubber block 10. Start the conveying component 3, and the second shifting plate 301 conveys the middle section of the rubber block 10 to the first conveyor belt 103. After the first conveyor belt 103 starts, the first shifting plate 104 continues to send the middle section of the rubber block 10 away; Subsequently, the two side translation positioning plates 202 step by step send the remaining rubber blocks 10 into the conveying component 3 and transport them out through the lifting component 1 in sequence.

[0046] Embodiment 2

[0047] Referring to Figures 5 to 8 , and based on the above embodiment, this embodiment also provides a lifting system for rubber cutting, which further includes three opening and closing components 5 acting on the cutting knife 7. The opening and closing components 5 include a positioning rod 502 connected to the sliding plate 503, and the cutting knife 7 is arranged at the end of the positioning rod 502. In this structure, expansion plates 501 are arranged on both sides of the cutting knife 7 through a linkage member 507 on the positioning rod 502, and the sides of the two expansion plates 501 facing the handle of the cutting knife 7 are in a shape of increasing diameter.

[0048] The linkage member 507 includes a sliding sleeve 5073 slidably arranged on the outer side of the positioning rod 502, and a first positioning sleeve 5071 and a second positioning sleeve 5072 fixedly arranged on the outer side of the positioning rod 502. In this structure, the first positioning sleeve 5071 and the second positioning sleeve 5072 are respectively rotatably connected to the expansion plate 501 through a first connecting rod 5074 and a third connecting rod 5076, and a spring 508 is arranged between the second positioning sleeve 5072 and the sliding sleeve 5073.

[0049] Embodiment 3

[0050] Referring to Figures 5 to 8 , and based on the above embodiment, this embodiment also provides a lifting system for rubber cutting. The positioning rod 502 is a cavity structure with a built-in cylinder 505. The linkage member 507 is slidably arranged on the positioning rod 502 through a sliding cylinder 506. The sliding sleeve 5073, the first positioning sleeve 5071 and the second positioning sleeve 5072 are all connected to the sliding cylinder 506. In this structure, a pressure sensor is integrated on the second positioning sleeve 5072 and is sensed through the expansion plate 501.

[0051] A conduction groove 5021 is opened on the side of the positioning rod 502. The sliding cylinder 506 passes through the conduction groove 5021 and is provided with a connecting plate 5061 inward, and the output end of the cylinder 505 is connected to the connecting plate 5061.

[0052] The specific implementation process is as follows: during the cutting of the rubber block 10 by the cutting knife 7, after the incision is formed, the rubber block 10 at the incision acts on the opening and closing plate 501. The opening and closing plate 501 produces an elastic effect through the linkage 507 and the spring 508. One end of the two opening and closing plates 501 abuts against the side of the cutting knife 7, and the other end of the opening and closing plate 501 acts on the incision. During this period, the two act on the incision repeatedly to expand it, thereby improving the cutting efficiency of the cutting knife 7 on the rubber block 10.

[0053] When the rubber block 10 is almost cut, the pressure sensor on the second positioning sleeve 5072 detects a decrease in pressure, and the air cylinder 505 is activated. The sliding cylinder 506 and the linkage 507 are pushed out. Under the action of the spring 508, one end of the two opening and closing plates 501 closes at the front of the cutting knife 7 to seal the cutting knife 7.

[0054] Many other changes and modifications can be made without departing from the spirit and scope of the present invention. It should be understood that the present invention is not limited to a specific implementation manner, and the scope of the present invention is defined by the appended claims.

Claims

1. A lifting system for rubber cutting, characterized in that, Comprising: A conveying assembly (3) for conveying rubber blocks (10) in the length direction, with pressing and positioning assemblies (2) acting inwardly on the width direction of the rubber blocks (10) respectively arranged on both sides of the conveying assembly (3); A hoisting and lifting frame (4) and a pair of cutting knives (7) arranged above the conveying assembly (3) and the pressing and positioning assemblies (2), the cutting knives (7) cutting off the middle section of the rubber blocks (10), and second shifting plates (301) being arranged at intervals on the surface of the conveyor belt of the conveying assembly (3); A lifting assembly (1) arranged at the end of the conveying assembly (3) along the length direction of the rubber blocks (10), which includes a first lifting seat (101) and a positioning and mounting seat (102) arranged in parallel, a driving roller and a relay roller being arranged on the positioning and mounting seat (102), a lifting roller being arranged at the lifting end of the first lifting seat (101), a first conveyor belt (103) being sleeved outside the driving roller, the relay roller and the lifting roller, and a first shifting plate (104) being arranged on the first conveyor belt (103) along its conveying direction, the middle section of the cut rubber blocks (10) being lifted and conveyed outwards through the second shifting plates (301) and the first shifting plates (104), and the lifting height being adjustable through the first lifting seat (101).

2. The lifting system for rubber cutting according to claim 1, wherein A distance adjusting structure and a driving assembly (6) are arranged on the hoisting and lifting frame (4), and a pair of the cutting knives (7) are slidably connected to the hoisting and lifting frame (4) through sliding plates (503); The driving assembly (6) includes a first motor (602), the output end of which is connected with a driving gear (601), and the sliding plates (503) are respectively meshed with the upper and lower sides of the driving gear (601) through racks (504).

3. The lifting system for rubber cutting according to claim 2, characterized in that, It further includes a closing and opening assembly (5) acting on the cutting knives (7), which includes a positioning rod (502) connected to the sliding plate (503), and the cutting knives (7) are arranged at the ends of the positioning rod (502); On the positioning rod (502), closing and opening plates (501) are arranged on both sides of the cutting knives (7) through a linkage member (507), and the sides of the two closing and opening plates (501) facing the knife handles of the cutting knives (7) are in a shape of increasing diameter.

4. A lifting system for rubber cutting according to claim 3, characterized in that, The linkage member (507) includes a sliding sleeve (5073) slidably arranged outside the positioning rod (502), and a first positioning sleeve (5071) and a second positioning sleeve (5072) fixedly arranged outside the positioning rod (502); The first positioning sleeve (5071) and the second positioning sleeve (5072) are respectively rotatably connected to the closing and opening plates (501) through a first connecting rod (5074) and a third connecting rod (5076), and a spring (508) is arranged between the second positioning sleeve (5072) and the sliding sleeve (5073).

5. The lifting system for rubber cutting according to claim 4, characterized in that, The positioning rod (502) has a cavity structure with a cylinder (505) built therein. The linkage member (507) is slidably disposed on the positioning rod (502) through a sliding cylinder (506). The sliding sleeve (5073), the first positioning sleeve (5071), and the second positioning sleeve (5072) are all connected to the sliding cylinder (506). A conduction groove (5021) is formed in the side of the positioning rod (502). The sliding cylinder (506) passes through the conduction groove (5021) and is provided with a connecting plate (5061) inward. The output end of the cylinder (505) is connected to the connecting plate (5061).

6. The lifting system for rubber cutting according to claim 1, wherein, The pushing and positioning assembly (2) includes a bottom plate (201) and a translation positioning plate (202) slidably disposed above the bottom plate (201). A sliding driving structure is built in the bottom plate (201).

7. The lifting system for rubber cutting according to claim 6, wherein, The translation positioning plate (202) has a U-shaped structure, and its two sides are set as L-shaped telescopic structures through driving parts.

8. The lifting system for rubber cutting according to claim 2, characterized in that, The hoisting and lifting frame (4) includes a hoisting seat (403). The hoisting seat (403) is connected with a lifting plate (401) downward through an automatic telescopic member (402). The first motor (602) is vertically installed on the lifting plate (401).

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