Rubber fender forming extrusion device

Abstract

The invention relates to the technical field of rubber fender forming, and discloses a rubber fender forming extrusion device which comprises a base, an extrusion mechanism and a mold mechanism are arranged on the base, the extrusion mechanism comprises a screw extruder, a feeding port and a discharging port are formed in the screw extruder, the mold mechanism comprises a discharging pipe arranged on the discharging port, and the discharging pipe is connected with the screw extruder. A die orifice is formed in the discharging pipe, and the rubber material is extruded and formed through the die orifice to obtain the rubber fender; a vibrating mechanism, a driving mechanism and an adjusting mechanism are further arranged on the base, the vibrating mechanism is used for controlling the discharging pipe to swing back and forth based on the axis so as to form shearing force on the sizing material to assist discharging, and the driving mechanism is used for driving the vibrating mechanism to operate. According to the rubber fender forming extrusion device, the fluid form of molten colloid is changed and the viscosity of the colloid is reduced by additionally arranging a mechanical vibration device on the head of the extruder, so that the extrusion pressure is reduced, the power consumption is reduced, the extrusion rate is improved, and the vibration frequency can be intelligently adjusted according to the extrusion speed.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber fender forming, and particularly to an extrusion device for rubber fender forming. Background Art

[0002] A fender is an elastic buffer device used at the edge of a dock or a ship, usually made of rubber. The fender is mainly used to reduce the impact force during the process of a ship berthing or mooring to or with a dock, and to reduce or eliminate damage to the ship and the dock. Rubber fenders can be processed by extrusion molding. After putting rubber raw materials into an extruder, the rubber is extruded and formed through a die to obtain a rubber fender.

[0003] In the prior art, the most commonly used are various types of screw extruders. The screw extruder uses the extrusion and heating systems of the screw to make the input rubber material form a polymer melt. During the process of the melt being extruded and formed through the die orifice, the extrusion speed and power are affected by the melt viscosity, resulting in too high extrusion pressure and power consumption.

[0004] Therefore, in order to solve the above technical problems existing in the prior art, an extrusion device for rubber fender forming is proposed. Summary of the Invention

[0005] The present invention provides an extrusion device for rubber fender forming, which has the beneficial effects of changing the fluid form of the molten colloid by adding a mechanical vibration device at the head of the extruder, reducing the colloid viscosity, thereby reducing the extrusion pressure, reducing the power consumption, increasing the extrusion rate, and the vibration frequency can be intelligently adjusted according to the extrusion speed, and solves the problem that in the prior art mentioned in the above background art, in the process of the screw extruder using the extrusion and heating systems of the screw to make the input rubber material form a polymer melt and the melt being extruded and formed through the die orifice, the extrusion speed and power are affected by the melt viscosity, resulting in too high extrusion pressure and power consumption.

[0006] The present invention provides the following technical solution: An extrusion device for rubber fender forming, including a base, an extrusion mechanism and a die mechanism are arranged on the base. The extrusion mechanism includes a screw extruder, a feed inlet and a discharge outlet are arranged on the screw extruder. The die mechanism includes a discharge pipe arranged on the discharge outlet, a die orifice is arranged on the discharge pipe, and the rubber material is extruded and formed through the die orifice to obtain a rubber fender;

[0007] A vibration mechanism, a driving mechanism and an adjusting mechanism are also arranged on the base. The vibration mechanism is used to control the discharge pipe to make a reciprocating swing based on the axis to form a shear force on the rubber material to assist in discharging. The driving mechanism is used to drive the vibration mechanism to operate. The adjusting mechanism is used to adjust the reciprocating swing frequency of the discharge pipe according to the extrusion speed of the rubber fender.

[0008] As an alternative solution of the rubber fender forming and extruding device described in the present invention, wherein: the extrusion mechanism further includes a screw and a first motor, the screw is rotatably arranged in the screw extruder, and the output shaft of the first motor is connected to the screw through a first speed reducer;

[0009] The die mechanism further includes two shock-absorbing brackets and a first mounting seat arranged on the base, the discharge pipe is rotatably arranged on the two shock-absorbing brackets, a die core is arranged on the first mounting seat, and the die core cooperates with the die orifice to form a notch on the rubber fender.

[0010] As an alternative solution of the rubber fender forming and extruding device described in the present invention, wherein: the die orifice includes a die and a filter screen arranged on one of the shock-absorbing brackets, and a mold groove consistent with the contour of the rubber fender is formed on the die.

[0011] As an alternative solution of the rubber fender forming and extruding device described in the present invention, wherein: the vibration mechanism includes two second mounting seats arranged on the base, the two second mounting seats are symmetrically distributed based on the discharge pipe, lifting seats are slidably arranged on the two second mounting seats, and first connecting seats are arranged on the two lifting seats;

[0012] Two first connecting rods are symmetrically arranged on the discharge pipe, second connecting rods are slidably arranged on the two first connecting rods, and the two second connecting rods are respectively movably hinged to the two first connecting seats through hinge shafts. The discharge pipe is driven to swing reciprocally based on the axis by the reciprocating lifting movements of the two lifting seats with the same frequency and opposite movement directions.

[0013] As an alternative solution of the rubber fender forming and extruding device described in the present invention, wherein: the vibration mechanism further includes a third mounting seat arranged on the base, a rotating cylinder is rotatably arranged on the third mounting seat, a first rotating shaft is arranged on the rotating cylinder, two cams are symmetrically arranged on the first rotating shaft, the two cams are respectively slidably connected to the two lifting seats, and the installation directions of the two cams are opposite.

[0014] As an alternative solution of the rubber fender forming and extruding device described in the present invention, wherein: the driving mechanism includes a turntable arranged on the first rotating shaft, a first sprocket is arranged on the turntable, a second motor is arranged on the base, the output shaft of the second motor is connected to a second rotating shaft through a second speed reducer, a second sprocket is arranged on the second rotating shaft, and the first sprocket and the second sprocket are connected by a chain drive.

[0015] As an alternative solution of the rubber fender forming and extruding device described in the present invention, wherein: the driving mechanism further includes a tensioning assembly, the tensioning assembly includes a third sprocket, and the third sprocket meshes with the chain;

[0016] A fourth mounting seat is arranged on the base, a third rotating shaft is rotatably arranged on the fourth mounting seat, a support plate is arranged on the third rotating shaft, a fourth rotating shaft is rotatably arranged on the support plate, and the third sprocket is arranged on the fourth rotating shaft;

[0017] The tensioning assembly further includes a torsion spring, and two ends of the torsion spring are respectively connected to the fourth mounting seat and the support plate.

[0018] As an alternative solution of the rubber fender forming and extruding device described in the present invention, wherein: the adjusting mechanism includes a fifth mounting seat arranged on the base, a fifth rotating shaft is rotatably arranged on the fifth mounting seat, a conveying wheel is arranged on the fifth rotating shaft, and the rubber fender is slidably connected to the conveying wheel;

[0019] The adjusting mechanism further includes a first transmission assembly and a second transmission assembly. When the rotation speed of the conveying wheel increases, the rotation speed of the turntable is reduced through the transmission of the first transmission assembly and the second transmission assembly, thereby reducing the swing frequency of the discharge pipe.

[0020] As an alternative solution of the rubber fender forming and extruding device described in the present invention, wherein: the first sprocket includes a plurality of arc-shaped tooth parts circumferentially arranged on the turntable, and a complete sprocket is formed by the plurality of arc-shaped tooth parts;

[0021] A plurality of chutes are circumferentially formed on the turntable, sliders are arranged on the plurality of arc-shaped tooth parts, and the plurality of sliders are respectively slidably connected to the plurality of chutes. When the output of the second motor is constant, the rotation speed of the turntable is adjusted by adjusting the transmission ratio between the second sprocket and the first sprocket;

[0022] The first transmission assembly includes a first sliding rod slidably arranged on the rotating cylinder, a connecting ring is arranged on the first sliding rod, a plurality of second connecting seats are circumferentially arranged on the connecting ring, and a third connecting seat is arranged on each of the plurality of sliders;

[0023] The first transmission assembly further includes a plurality of third connecting rods, one ends of the plurality of third connecting rods are respectively movably hinged to the plurality of second connecting seats through hinge shafts, and the other ends of the plurality of third connecting rods are respectively movably hinged to the plurality of third connecting seats through hinge shafts.

[0024] As an alternative solution of the rubber fender forming and extruding device described in the present invention, wherein: the second transmission assembly includes two second sliding rods symmetrically and slidably arranged on the fifth rotating shaft, and both of the two second sliding rods are elastically connected to the fifth rotating shaft through springs. A fourth connecting rod is slidably arranged on the third mounting seat, and the first sliding rod is rotatably connected to the fourth connecting rod;

[0025] A rotating rod is also rotatably arranged on the fourth connecting rod. The second transmission assembly further includes two fifth connecting rods. One ends of the two fifth connecting rods are respectively movably hinged to the two second sliding rods through hinge shafts, and the other ends of the two fifth connecting rods are both movably hinged to the rotating rod through hinge shafts.

[0026] The present invention has the following beneficial effects:

[0027] 1. For the rubber fender forming and extruding device, a discharge pipe is installed at the head part of the screw extruder. The discharge pipe can rotate based on the axial direction, and through the mechanical transmission of the vibration mechanism, the discharge pipe makes a reciprocating swing that alternates between clockwise rotation and counterclockwise rotation. When the rubber melt passes through the discharge pipe part, it is subjected to the periodic vibration field formed by the reciprocating swing on the melt, which will change the rheological state of the melt, resulting in a decrease in the viscosity of the polymer, a decrease in the pressure required to extrude the melt, an increase in the average extrusion flow rate, and a decrease in the extrusion power. The vibration also improves the physical and mechanical properties of the product.

[0028] 2. For the rubber fender forming and extruding device, both ends of the discharge pipe are connected to the discharge port and the die orifice through shock-absorbing brackets. The shock-absorbing brackets can play a shock-absorbing role, controlling the vibration generated by the swing of the discharge pipe within the range between the two shock-absorbing brackets, reducing the impact of the vibration on the main body of the screw extruder, and reducing the reduction of the service life of the mechanical device due to vibration.

[0029] 3. For the rubber fender forming and extruding device, a conveying wheel is also used to intelligently sense the extrusion speed of the rubber fender. When the forming and extruding rate of the rubber fender is relatively high, there is no need for excessive vibration assistance. At this time, due to the decrease in the rotation speed of the conveying wheel, the rotation speed of the first rotating shaft that drives the discharge pipe to reciprocate swing will be reduced through transmission, thereby reducing the vibration frequency of the discharge pipe. On the contrary, when the extrusion rate of the rubber fender decreases, the vibration frequency of the discharge pipe is actively increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic structural diagram of the whole of the present invention.

[0031] Figure 2 It is a schematic structural diagram of the extrusion mechanism in the present invention.

[0032] Figure 3 It is a schematic cross-sectional structural diagram of the die mechanism in the present invention.

[0033] Figure 4 For the present invention Figure 3 is a schematic diagram of a partially enlarged structure at position A in the present invention.

[0034] Figure 5 is a schematic cross-sectional structure diagram of the vibration mechanism in the present invention.

[0035] Figure 6 is an exploded structure diagram of the adjustment mechanism in the present invention.

[0036] Figure 7 is an exploded structure diagram of the drive mechanism in the present invention.

[0037] Figure 8 is an exploded structure diagram of the first transmission assembly in the present invention.

[0038] Figure 9 is a schematic structure diagram of the tensioning and loosening assembly in the present invention.

[0039] In the figure: 100, base; 200, extrusion mechanism; 210, screw extruder; 220, feed inlet; 230, discharge outlet; 240, screw; 250, first motor; 260, first reducer; 300, die mechanism; 310, discharge pipe; 320, die orifice; 321, die; 322, mold cavity; 323, filter screen; 330, shock-absorbing bracket; 340, first mounting seat; 350, die core; 400, rubber fender; 410, notch; 500, vibration mechanism; 510, second mounting seat; 520, lifting seat; 530, first connecting seat; 540, first connecting rod; 550, second connecting rod; 560, third mounting seat; 570, rotating cylinder; 580, first rotating shaft; 590, cam; 600, drive mechanism; 610, turntable; 620, first sprocket; 621, arc-shaped tooth part; 622, chute; 623, slider; 630, second rotating shaft; 640, second sprocket; 650, chain; 660, second motor; 670, second reducer; 680, tensioning and loosening assembly; 681, fourth mounting seat; 682, third rotating shaft; 683, support plate; 684, fourth rotating shaft; 685, third sprocket; 686, torsion spring; 700, adjustment mechanism; 710, fifth mounting seat; 720, fifth rotating shaft; 730, conveying wheel; 740, first transmission assembly; 741, first slide bar; 742, connecting ring; 743, second connecting seat; 744, third connecting seat; 745, third connecting rod; 750, second transmission assembly; 751, second slide bar; 752, spring; 753, fourth connecting rod; 754, rotating rod; 755, fifth connecting rod. Detailed implementation manners

[0040] 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] Embodiment 1. Please refer to Figures 1 - 6 , a rubber fender forming and extruding device, which includes a base 100. An extrusion mechanism 200 and a die mechanism 300 are arranged on the base 100. The extrusion mechanism 200 includes a screw extruder 210. A feed inlet 220 and a discharge outlet 230 are arranged on the screw extruder 210. The die mechanism 300 includes a discharge pipe 310 arranged on the discharge outlet 230. A die orifice 320 is arranged on the discharge pipe 310. The rubber compound is extruded through the die orifice 320 to form a rubber fender 400.

[0042] A vibration mechanism 500, a driving mechanism 600 and an adjusting mechanism 700 are also arranged on the base 100. The vibration mechanism 500 is used to control the discharge pipe 310 to make reciprocating swings based on the axis to form a shearing force on the rubber compound to assist in discharging. The driving mechanism 600 is used to drive the vibration mechanism 500 to operate. The adjusting mechanism 700 is used to adjust the reciprocating swing frequency of the discharge pipe 310 according to the extrusion speed of the rubber fender 400.

[0043] The extrusion mechanism 200 further includes a screw 240 and a first motor 250. The screw 240 is rotatably arranged in the screw extruder 210. The output shaft of the first motor 250 is connected to the screw 240 through a first reducer 260.

[0044] The die mechanism 300 further includes two shock-absorbing brackets 330 and a first mounting seat 340 arranged on the base 100. The discharge pipe 310 is rotatably arranged on the two shock-absorbing brackets 330. A die core 350 is arranged on the first mounting seat 340. The die core 350 cooperates with the die orifice 320 to form a notch 410 on the rubber fender 400.

[0045] The die orifice 320 includes a die 321 and a filter screen 323 arranged on one of the shock-absorbing brackets 330. A mold cavity 322 consistent with the contour of the rubber fender 400 is opened on the die 321.

[0046] In this embodiment: After selecting the rubber raw materials required for manufacturing the rubber fender 400 and proportioning the relevant auxiliary materials, the rubber compound is fed into the screw extruder 210 through the feed port 220. The first motor 250 operates to drive the screw 240 to rotate through the first reducer 260. Heating systems, cooling systems, pressure sensors and other devices are also installed in the screw extruder 210. After being extruded and heated by the screw 240, the rubber compound forms a melt, and the melt comes out from the discharge port 230 and reaches the die orifice 320 through the discharge pipe 310.

[0047] After impurities in the melt are filtered by the filter screen 323, the melt forms the rubber fender 400 through the mold cavity 322. The rubber fender 400 has different specifications and shapes, and the commonly used semi-circular fender is selected here. Usually, the interior of the rubber fender 400 is a hollow structure. Therefore, the first mounting seat 340 and the mold core 350 are detachably installed on the base 100, and the mold core 350 is used to form the notch 410. The finally formed rubber fender 400 can be further processed through steps such as vulcanization, cooling, surface treatment, cutting, etc. to obtain the final product.

[0048] In order to reduce the power and extrusion pressure of the screw extruder 210, an additional section of the discharge pipe 310 is rotatably installed based on two shock-absorbing brackets 330, and sealing rings can be added between the discharge pipe 310 and the discharge port 230 as well as between the discharge pipe 310 and the die orifice 320 to ensure the sealing performance.

[0049] By driving the vibration mechanism 500 to operate through the driving mechanism 600, the discharge pipe 310 makes a reciprocating swing that crosses clockwise and counterclockwise based on its axis, which can add an additional alternating stress to the main shear flow of the melt. The vibration strengthens the physical and chemical change processes of the polymer during processing, changes the rheological state of the polymer melt. At the same time, the periodic pulsating shear force generates a large amount of dissipated heat, resulting in a decrease in the viscosity of the polymer melt. Therefore, the pressure required to extrude the melt decreases, the average extrusion flow rate increases, and the extrusion power decreases. The vibration also improves the physical and mechanical properties of the product.

[0050] In addition, furthermore, due to the complex composition of the melt, its specific extrusion efficiency is in a non-standard state affected by various working conditions. Therefore, an adjustment mechanism 700 is also provided to perform negative feedback adjustment according to the specific extrusion rate of the rubber fender 400 and change the swing frequency of the discharge pipe 310.

[0051] Embodiment 2 is an improved description based on Embodiment 1. Specifically, please refer to Figures 1 - 6 The vibration mechanism 500 includes two second mounting seats 510 arranged on the base 100. The two second mounting seats 510 are symmetrically distributed based on the discharge pipe 310. Lifting seats 520 are slidably arranged on the two second mounting seats 510, and first connecting seats 530 are arranged on the two lifting seats 520.

[0052] Two first connecting rods 540 are symmetrically arranged on the discharge pipe 310, and second connecting rods 550 are slidably arranged on the two first connecting rods 540. The two second connecting rods 550 are respectively hinged to the two first connecting seats 530 through hinge shafts, and the two lifting seats 520 perform reciprocating lifting motions with the same frequency and opposite movement directions to drive the discharge pipe 310 to swing back and forth based on the axis.

[0053] The vibration mechanism 500 also includes a third mounting seat 560 arranged on the base 100, and a rotating drum 570 is rotatably arranged on the third mounting seat 560, and a first rotating shaft 580 is arranged on the rotating drum 570. Two cams 590 are symmetrically arranged on the first rotating shaft 580. The two cams 590 are respectively slidably connected to the two lifting seats 520, and the installation directions of the two cams 590 are opposite.

[0054] In this embodiment: Figure 6 For example, the tips of the two cams 590 are set at 180 degrees. As shown in the figure, the tip of the left cam 590 points to the front, and the tip of the right cam 590 points to the back. At this time, the two lifting seats 520 are lifted by the two cams 590 and are in the same horizontal position.

[0055] When the rotating drum 570 and the first rotating shaft 580 rotate clockwise, in the first semicircular cycle, the radius of the point where the left cam 590 contacts the left lifting seat 520 from the center of the circle of the left cam 590 decreases, and the left lifting seat 520 descends, while the radius of the point where the right cam 590 contacts the right lifting seat 520 increases, and the right lifting seat 520 is lifted, and the discharge pipe 310 rotates counterclockwise. In the second semicircular cycle, the left lifting seat 520 rises, and the right lifting seat 520 descends, and the discharge pipe 310 rotates clockwise. The two are repeatedly alternating, so that the left first connecting seat 530 and the right first connecting seat 530 perform reciprocating lifting and lowering motions in opposite directions. At this time, the transmission of the first connecting seat 530 and the first connecting rod 540 causes the discharge pipe 310 to rotate alternately clockwise and counterclockwise, achieving a reciprocating swing effect.

[0056] Embodiment 3: This embodiment is an improvement made on the basis of Embodiment 2. For details, please refer to Figures 1 - 9 The driving mechanism 600 includes a turntable 610 arranged on the first rotating shaft 580, a first sprocket 620 is arranged on the turntable 610, a second motor 660 is arranged on the base 100, the output shaft of the second motor 660 is connected to the second rotating shaft 630 through a second reducer 670, a second sprocket 640 is arranged on the second rotating shaft 630, and the first sprocket 620 and the second sprocket 640 are connected by a chain 650.

[0057] The driving mechanism 600 includes a turntable 610 arranged on the first rotating shaft 580, a first sprocket 620 is arranged on the turntable 610, a second motor 660 is arranged on the base 100, the output shaft of the second motor 660 is connected to the second rotating shaft 630 through a second reducer 670, a second sprocket 640 is arranged on the second rotating shaft 630, and the first sprocket 620 and the second sprocket 640 are connected through a chain 650.

[0058] The drive mechanism 600 further includes a tensioning assembly 680 , which includes a third sprocket 685 , which is engaged with the chain 650 .

[0059] A fourth mounting seat 681 is disposed on the base 100 , a third rotating shaft 682 is rotatably disposed on the fourth mounting seat 681 , a supporting plate 683 is disposed on the third rotating shaft 682 , a fourth rotating shaft 684 is rotatably disposed on the supporting plate 683 , and a third sprocket 685 is disposed on the fourth rotating shaft 684 .

[0060] The tensioning assembly 680 further includes a torsion spring 686 , two ends of which are respectively connected to the fourth mounting seat 681 and the support plate 683 .

[0061] In this embodiment, the second motor 660 drives the second rotating shaft 630 and the second sprocket 640 to rotate clockwise through the second reducer 670 , and the second sprocket 640 drives the first sprocket 620 , the rotating disk 610 , the rotating drum 570 and the first rotating shaft 580 to rotate clockwise through the chain 650 .

[0062] The first sprocket 620 is not a complete sprocket of fixed size, but a sprocket that is approximately an integral whole composed of a plurality of arc-shaped teeth 621, and plays the same role as the second sprocket 640 in chain transmission. However, the size of the first sprocket 620 is adjustable, and the transmission ratio between the first sprocket 620 and the second sprocket 640 can be adjusted by controlling the plurality of arc-shaped teeth 621 and the slider 623 to synchronously slide in the slide grooves 622 respectively provided along the plurality of equally divided radial directions of the rotating disk 610 to perform radial expansion or radial contraction movements.

[0063] When the diameter of the first sprocket 620 decreases, since the output of the second motor 660 remains unchanged, the linear velocity of the second sprocket 640 remains unchanged, but the angular velocity of the first sprocket 620 increases, so the rotation speed of the turntable 610 increases and the swing frequency of the discharge pipe 310 increases.

[0064] On the contrary, when the diameter of the first sprocket 620 increases, the rotation speed of the turntable 610 decreases, and the swing frequency of the discharge pipe 310 decreases.

[0065] The tensioning component 680 uses the elastic force provided by the torsion spring 686 to press the support plate 683 towards the chain 650 as much as possible. The third sprocket 685 rotates with the transmission of the chain 650, which plays a role in enabling the chain 650 to still be normally transmitted after the diameter of the first sprocket 620 changes.

[0066] Embodiment 4 is an improved description based on Embodiment 3. Specifically, please refer to Figures 1 - 8 , the adjusting mechanism 700 includes a fifth mounting seat 710 arranged on the base 100. A fifth rotating shaft 720 is rotatably arranged on the fifth mounting seat 710. A conveying wheel 730 is arranged on the fifth rotating shaft 720. The rubber fender 400 is slidably connected to the conveying wheel 730.

[0067] The adjusting mechanism 700 further includes a first transmission component 740 and a second transmission component 750. When the rotation speed of the conveying wheel 730 increases, the rotation speed of the turntable 610 is reduced through the transmission of the first transmission component 740 and the second transmission component 750, thereby reducing the swinging frequency of the discharge pipe 310.

[0068] The first sprocket 620 includes a plurality of arc-shaped tooth parts 621 circumferentially arranged on the turntable 610, and a complete sprocket is formed by the plurality of arc-shaped tooth parts 621.

[0069] A plurality of sliding grooves 622 are circumferentially formed on the turntable 610. Sliders 623 are arranged on the plurality of arc-shaped tooth parts 621. The plurality of sliders 623 are respectively slidably connected in the plurality of sliding grooves 622. When the output of the second motor 660 is constant, the rotation speed of the turntable 610 is adjusted by adjusting the transmission ratio between the second sprocket 640 and the first sprocket 620.

[0070] The first transmission component 740 includes a first sliding rod 741 slidably arranged on the rotating cylinder 570. A connecting ring 742 is arranged on the first sliding rod 741. A plurality of second connecting seats 743 are circumferentially arranged on the connecting ring 742. Third connecting seats 744 are arranged on the plurality of sliders 623.

[0071] The first transmission component 740 further includes a plurality of third connecting rods 745. One ends of the plurality of third connecting rods 745 are respectively movably hinged to the plurality of second connecting seats 743 through hinge shafts, and the other ends of the plurality of third connecting rods 745 are respectively movably hinged to the plurality of third connecting seats 744 through hinge shafts.

[0072] The second transmission component 750 includes two second sliding rods 751 symmetrically slidably arranged on the fifth rotating shaft 720. The two second sliding rods 751 are elastically connected to the fifth rotating shaft 720 through springs 752. A fourth connecting rod 753 is slidably arranged on the third mounting seat 560. The first sliding rod 741 is rotatably connected to the fourth connecting rod 753.

[0073] A rotating rod 754 is also rotatably arranged on the fourth connecting rod 753. The second transmission assembly 750 further includes two fifth connecting rods 755. One ends of the two fifth connecting rods 755 are respectively movably hinged to the two second sliding rods 751 through hinge shafts, and the other ends of the two fifth connecting rods 755 are both movably hinged to the rotating rod 754 through hinge shafts.

[0074] In this embodiment: After the rubber fender 400 is extruded from the die orifice 320, the feeding wheel 730 naturally rotates under the frictional force of the rubber fender 400, and the rotation speed of the feeding wheel 730 is related to the extrusion speed of the rubber fender 400. When the extrusion speed of the rubber fender 400 increases, the rotation speed of the feeding wheel 730 increases.

[0075] When the rotation speed of the feeding wheel 730 increases, the centrifugal forces received by the two second sliding rods 751 increase, so the two second sliding rods 751 will move radially away from each other based on the radial direction of the fifth rotating shaft 720. At this time, through the transmission of the two fifth connecting rods 755, the rotating rod 754 and the fourth connecting rod 753 will move to the right, and the fourth connecting rod 753 will drive the first sliding rod 741 to move to the right. When the first sliding rod 741 moves to the right, through the transmission of several third connecting rods 745, it will drive several arc-shaped teeth 621 to move radially away from each other based on the radial direction of the turntable 610. Then the diameter of the first sprocket 620 increases, the rotation speed of the turntable 610 decreases, and the swinging frequency of the discharge pipe 310 decreases.

[0076] Conversely, when the extrusion speed of the rubber fender 400 decreases, the swinging frequency of the discharge pipe 310 increases.

[0077] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0078] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A rubber fender molding extrusion device, comprising a base (100), characterized in that: An extrusion mechanism (200) and a mold mechanism (300) are arranged on the base (100); the extrusion mechanism (200) comprises a screw extruder (210); the screw extruder (210) is provided with a feed port (220) and a discharge port (230); the mold mechanism (300) comprises a discharge pipe (310) arranged on the discharge port (230); the discharge pipe (310) is provided with a die opening (320); the rubber material is extruded through the die opening (320) to obtain a rubber fender (400); The base (100) is also provided with a vibration mechanism (500), a driving mechanism (600) and an adjustment mechanism (700); the vibration mechanism (500) is used to control the discharge pipe (310) to oscillate back and forth based on an axis to generate shear force on the rubber material to assist in discharging; the driving mechanism (600) is used to drive the vibration mechanism (500) to operate; and the adjustment mechanism (700) is used to adjust the reciprocating oscillation frequency of the discharge pipe (310) according to the extrusion speed of the rubber fender (400).

2. A rubber fender forming and extrusion device according to claim 1, characterized in that: The extrusion mechanism (200) further comprises a screw (240) and a first motor (250), wherein the screw (240) is rotatably disposed in the screw extruder (210), and an output shaft of the first motor (250) is connected to the screw (240) via a first reducer (260); The mold mechanism (300) further comprises two shock-absorbing brackets (330) and a first mounting seat (340) arranged on the base (100); the discharge pipe (310) is rotatably arranged on the two shock-absorbing brackets (330); a mold core (350) is arranged on the first mounting seat (340); the mold core (350) cooperates with the mold opening (320) to form a notch (410) on the rubber fender (400).

3. A rubber fender forming and extruding device according to claim 2, characterized in that: The die opening (320) comprises a mold (321) and a filter screen (323) arranged on one of the shock-absorbing brackets (330); a groove (322) consistent with the contour of the rubber fender (400) is provided on the mold (321).

4. A rubber fender forming and extruding device according to claim 1, characterized in that: The vibration mechanism (500) comprises two second mounting seats (510) arranged on the base (100), the two second mounting seats (510) are symmetrically distributed based on the discharge pipe (310), the two second mounting seats (510) are both slidably provided with a lifting seat (520), and the two lifting seats (520) are both provided with a first connecting seat (530); Two first connecting rods (540) are symmetrically arranged on the discharge pipe (310), and a second connecting rod (550) is slidably arranged on the two first connecting rods (540). The two second connecting rods (550) are respectively hinged to the two first connecting seats (530) through hinge shafts, and the two lifting seats (520) perform reciprocating lifting motions with the same frequency and opposite movement directions to drive the discharge pipe (310) to swing back and forth based on the axis.

5. A rubber fender forming and extruding device according to claim 4, characterized in that: The vibration mechanism (500) further comprises a third mounting seat (560) arranged on the base (100), a rotating drum (570) being rotatably arranged on the third mounting seat (560), a first rotating shaft (580) being arranged on the rotating drum (570), two cams (590) being symmetrically arranged on the first rotating shaft (580), the two cams (590) being respectively slidably connected to the two lifting seats (520), and the installation directions of the two cams (590) are opposite.

6. A rubber fender forming and extruding device according to claim 5, characterized in that: The driving mechanism (600) comprises a rotating disk (610) arranged on the first rotating shaft (580), a first sprocket (620) being arranged on the rotating disk (610), a second motor (660) being arranged on the base (100), an output shaft of the second motor (660) being connected to a second rotating shaft (630) via a second reducer (670), a second sprocket (640) being arranged on the second rotating shaft (630), and the first sprocket (620) and the second sprocket (640) being connected by a chain (650).

7. A rubber fender forming and extruding device according to claim 6, characterized in that: The driving mechanism (600) further comprises a tensioning assembly (680), wherein the tensioning assembly (680) comprises a third sprocket (685), and the third sprocket (685) is meshed with the chain (650); A fourth mounting seat (681) is arranged on the base (100), a third rotating shaft (682) is rotatably arranged on the fourth mounting seat (681), a supporting plate (683) is arranged on the third rotating shaft (682), a fourth rotating shaft (684) is rotatably arranged on the supporting plate (683), and the third sprocket (685) is arranged on the fourth rotating shaft (684); The tensioning assembly (680) further comprises a torsion spring (686), and two ends of the torsion spring (686) are respectively connected to the fourth mounting seat (681) and the support plate (683).

8. The rubber fender molding extrusion device according to claim 6, characterized in that: The adjustment mechanism (700) comprises a fifth mounting seat (710) arranged on the base (100), a fifth rotating shaft (720) is rotatably arranged on the fifth mounting seat (710), a supporting wheel (730) is arranged on the fifth rotating shaft (720), and the rubber fender (400) is slidably connected to the supporting wheel (730); The adjustment mechanism (700) further includes a first transmission assembly (740) and a second transmission assembly (750). When the rotation speed of the conveying wheel (730) increases, the rotation speed of the turntable (610) is reduced through the transmission of the first transmission assembly (740) and the second transmission assembly (750), thereby reducing the swing frequency of the discharge pipe (310).

9. A rubber fender forming and extruding device according to claim 8, characterized in that: The first sprocket (620) comprises a plurality of arc-shaped teeth (621) circumferentially arranged on the rotating disk (610), and a complete sprocket is formed by the plurality of arc-shaped teeth (621); A plurality of slide grooves (622) are provided on the rotating disk (610) in a circumferential direction, and a plurality of the arc-shaped tooth portions (621) are provided with sliders (623), and the sliders (623) are respectively slidably connected to the plurality of slide grooves (622). When the output of the second motor (660) is constant, the rotation speed of the rotating disk (610) is adjusted by adjusting the transmission ratio between the second sprocket (640) and the first sprocket (620); The first transmission assembly (740) comprises a first sliding rod (741) slidably arranged on the rotating drum (570), a connecting ring (742) is arranged on the first sliding rod (741), a plurality of second connecting seats (743) are circumferentially arranged on the connecting ring (742), and a third connecting seat (744) is arranged on each of the plurality of sliding blocks (623); The first transmission assembly (740) also includes a plurality of third connecting rods (745), one end of each of the third connecting rods (745) is hinged to a plurality of second connecting seats (743) via hinges, and the other end of each of the third connecting rods (745) is hinged to a plurality of third connecting seats (744) via hinges.

10. A rubber fender forming and extruding device according to claim 9, characterized in that: The second transmission assembly (750) comprises two second sliding rods (751) symmetrically slidably arranged on the fifth rotating shaft (720), the two second sliding rods (751) are elastically connected to the fifth rotating shaft (720) via springs (752), a fourth connecting rod (753) is slidably arranged on the third mounting seat (560), and the first sliding rod (741) is rotatably connected to the fourth connecting rod (753); A rotating rod (754) is also rotatably arranged on the fourth connecting rod (753), and the second transmission assembly (750) also includes two fifth connecting rods (755), one end of the two fifth connecting rods (755) is respectively hinged to the two second sliding rods (751) through a hinge shaft, and the other end of the two fifth connecting rods (755) is hinged to the rotating rod (754) through a hinge shaft.

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