A rubber filter gum machine driven by a gear pump

Abstract

The present invention relates to the technical field of rubber processing, and particularly to a rubber filtering machine driven by a gear pump, which includes a machine base, a control box and a machine body. The control box and the machine body are both installed on the upper surface of the machine base, and the machine body is kept horizontal. It further includes a gear pump, a feeder and a filtering mechanism. The gear pump is fixedly connected to the left side of the machine body and is electrically connected to the control box, and the screw rod in the machine body is driven to rotate by the gear pump; the feeder is installed on the top of the machine body and is electrically connected to the control box; the filtering mechanism is fixedly connected to the right end of the machine body; a support seat is fixedly connected to the right end of the machine body, a flow channel is provided inside the support seat, and an installation groove is provided on the right side of the inner cavity of the support seat. It has the function of automatically cooling rubber, preventing the rubber from coking due to too high temperature, avoiding rubber deterioration, protecting the filter screen, monitoring the permeability of the filter screen, enabling the filter screen to be cleaned in time, and improving the rubber filtering efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber processing, and in particular, to a rubber filtering machine driven by a gear pump. Background Art

[0002] A rubber filtering machine is a machine that uses the pushing and conveying action of a screw to remove impurities in rubber materials or reclaimed rubber. It mainly consists of a screw, a barrel, a rubber filtering head, a transmission device, etc.

[0003] The gear pump rotates the screw, conveys the rubber to move towards the rubber filtering head in the barrel, the filter screen filters out solid impurities in the rubber, and then the rubber is extruded through the head to achieve rubber impurity removal. During the process of extruding rubber, the rubber filtering head will gradually heat up. Once the rubber overheats, coking will occur, the plasticity of the rubber material will decrease, and the fluidity will be lost. This will not only cause the rubber to deteriorate, but also affect rubber filtration. As the impurities blocked by the filter screen increase, the permeability of the filter screen decreases. Once the filter screen cannot ensure normal rubber filtration, the rubber pressure increases, easily damaging the filter screen and resulting in out-of-control rubber filtration. Therefore, a rubber filtering machine driven by a gear pump is proposed. Summary of the Invention

[0004] In order to overcome the disadvantages in the prior art that the rubber filtering temperature cannot be controlled and the rubber cannot be depressurized, the present invention provides a rubber filtering machine driven by a gear pump.

[0005] To achieve the above object, the present invention provides the following technical solution: A rubber filtering machine driven by a gear pump, including a machine base, a control box, and a machine body. The control box and the machine body are both installed on the upper surface of the machine base, and the machine body is kept horizontal. It further includes a gear pump, a feeder, and a filtering mechanism. The gear pump is fixedly connected to the left side of the machine body and is electrically connected to the control box, and the gear pump drives the screw in the machine body to rotate; the feeder is installed on the top of the machine body and is electrically connected to the control box; the filtering mechanism is fixedly connected to the right end of the machine body.

[0006] Preferably, the filtering mechanism includes a support base, a flow channel, an installation groove, a filter screen, a head, a temperature control component, a conduit, and an explosion-proof component. The support base is fixedly connected to the right end of the machine body. A flow channel is opened inside the support base, and an installation groove is opened on the right side of the inner cavity of the support base; the filter screen is inserted into the inner cavity of the installation groove; one side of the head is connected to the front of the support base through a hinge, and the other side is locked with the support base through a bolt; the temperature control component is horizontally embedded at the bottom end of the left side wall of the support base; one end of the conduit is installed on the outer wall of the temperature control component, and the other end is communicated with the flow channel; the explosion-proof component is vertically embedded at the bottom end of the support base.

[0007] Preferably, both ends of the flow channel are chamfered.

[0008] Preferably, there is a gap between the filter screen and the head.

[0009] Preferably, the temperature control component includes a copper tube, an expansion body, a first piston, a piston rod, a valve body, a spring, a valve core and a diversion hole. The copper tube is horizontally embedded in the bottom end of the left side wall of the support seat; the expansion body is filled in the right side of the inner cavity of the copper tube; the first piston is inserted in the middle of the inner cavity of the copper tube and can slide left and right; one end of the piston rod is installed at the left end of the first piston; the valve body is fixedly connected to the left end of the copper tube, the front of the valve body is connected to the conduit, and a cold water pipe is connected to the rear side of the valve body; the spring and the valve core are respectively inserted into the left and right sides of the inner cavity of the valve body, and the valve core is connected to the other end of the piston rod. Under the elastic force of the spring, the valve core is pushed to move rightward, and a diversion hole is opened on the outer wall of the valve core.

[0010] Preferably, the material of the expansion body is mercury.

[0011] Preferably, the explosion-proof component includes a box body, a pressure relief hole, a rotating shaft, a gear, a turntable, a connecting rod, a second piston, a counterweight, a rack and a proximity switch. The box body is vertically embedded in the bottom end of the support seat; the number of pressure relief holes is at least two, and they are equidistantly opened at the top of the outer wall of the box body; the rotating shaft is installed in the middle of the inner cavity of the box body along the front-rear direction through a bearing; the gear and the turntable are respectively installed at the front and rear ends of the rotating shaft; one end of the connecting rod is connected to the outer edge of the outer wall of the turntable through a pin shaft; the second piston is inserted into the top of the inner cavity of the box body and can slide up and down, and the bottom end of the second piston is connected to the other end of the connecting rod through a pin shaft; the counterweight is inserted into the bottom of the inner cavity of the box body and can slide up and down; the rack is vertically installed on the top of the counterweight, and the rack is meshed with the gear. Under the action of the gravity of the counterweight, the rack descends, and then the gear drives the turntable to rotate counterclockwise; the proximity switch is horizontally embedded in the bottom end of the left side wall of the box body, and the proximity switch is electrically connected to the controller.

[0012] Preferably, the gravity of the counterweight can drive the rack to move downward. Under the transmission of the rack and the gear, the turntable rotates counterclockwise, so that the connecting rod pulls the second piston to move upward.

[0013] Preferably, a rubber pad is bonded to the bottom of the inner cavity of the box body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, the expansion body rises as the temperature of the support seat rises. The expansion body squeezes the first piston to the left. At the same time, the piston rod pushes the valve core to move leftward, and the diversion hole can increase the flow rate of cold water, improve the flow rate of cold water passing through the flow channel, and improve the cooling efficiency of the support seat. As the temperature of the support seat drops, the volume of the expansion body decreases, and the spring pushes the valve core to move rightward under its own elastic force, and the flow rate of cold water passing through the diversion hole decreases, reducing the cooling efficiency of the support seat. Therefore, it has an automatic rubber cooling function, prevents the rubber from overheating and coking, avoids rubber deterioration, and protects the filter screen.

[0016] 2. In the present invention, the second piston receives the rubber pressure. When the rubber treatment by the filter screen is overloaded, the rubber pressure increases, prompting the second piston to descend. Under the drive of the rack and gear, the counterweight rises. The second piston opens the pressure relief hole, and the rubber is discharged from the pressure relief hole, realizing the rubber pressure relief in the support seat. The proximity switch is blocked by the counterweight and triggered, and the control box makes a sound alarm to monitor the permeability of the filter screen, enabling the filter screen to be cleaned in time and improving the rubber filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 of the present invention Figure 1 is a partial enlarged view;

[0019] Figure 3 is a schematic structural diagram of the filtering mechanism of the present invention;

[0020] Figure 4 is a front sectional view of the filtering mechanism of the present invention;

[0021] Figure 5 is a left sectional view of the support seat of the present invention;

[0022] Figure 6 is a front sectional view of the temperature control component of the present invention;

[0023] Figure 7 is a front sectional view of the explosion-proof component of the present invention.

[0024] In the figure: 1, machine base; 2, control box; 3, fuselage; 4, gear pump; 5, feeder; 6, filtering mechanism; 61, support seat; 62, flow channel; 63, installation groove; 64, filter screen; 65, head; 66, temperature control component; 67, conduit; 68, explosion-proof component; 661, copper tube; 662, expansion body; 663, first piston; 664, piston rod; 665, valve body; 666, valve core; 667, diversion hole; 668, spring; 681, box body; 682, pressure relief hole; 683, rotating shaft; 684, gear; 685, turntable; 686, connecting rod; 687, second piston; 688, counterweight; 689, rack; 6810, proximity switch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] 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.

[0026] The present invention provides a technical solution: a rubber rubber filtering machine driven by a gear pump, as Figures 1 - 7 shown, which includes a machine base 1, a control box 2 and a fuselage 3. The control box 2 and the fuselage 3 are both installed on the upper surface of the machine base 1. A gear pump 4 is installed at the left end of the fuselage 3. The gear pump 4 drives the screw inside the fuselage 3 to rotate, conveying the rubber from left to right. The gear pump 4 is electrically connected to the control box 2. A feeder 5 is fixedly connected to the top of the fuselage 3, and the rubber is put into the inner cavity of the fuselage 3 through the feeder 5. A filtering mechanism 6 is fixedly connected to the right end of the fuselage 3.

[0027] As a preferred solution, further, the filtering mechanism 6 includes a support seat 61 fixedly connected to the right end of the fuselage 3. A flow channel 62 is provided inside the support seat 61. Both ends of the flow channel 62 are chamfered, which is beneficial for cold water to pass through and can also prevent vibration generated when the cold water flows. The rear opening of the flow channel 62 is connected to a cold water return pipe. An installation groove 63 is provided on the right side of the inner cavity of the support seat 61. A filter screen 64 is inserted into the inner cavity of the installation groove 63. Solid impurities in the rubber are filtered out through the filter screen 64. One end of the machine head 65 is connected to the support seat 61 through a hinge, and the other end of the machine head 65 is locked to the rear side of the support seat 61 through a bolt. There is a gap between the filter screen 64 and the machine head 65, so that the filtered rubber can be extruded through the machine head 65. A temperature control component 66 is horizontally embedded at the bottom end of the left side wall of the support seat 61. One end of a conduit 67 is installed on the front surface of the temperature control component 66, and the other end of the conduit 67 is connected to the front opening of the flow channel 62. An explosion-proof component 68 is embedded at the bottom of the support seat 61.

[0028] As a preferred solution, further, the temperature control component 66 includes a copper tube 661 horizontally embedded at the bottom end of the left side wall of the support seat 61. An expansion body 662 is filled in the right side of the inner cavity of the copper tube 661. The material of the expansion body 662 is mercury. A first piston 663 that can slide left and right is inserted into the middle of the inner cavity of the copper tube 661. Heat conduction is achieved between the copper tube 661 and the support seat 61. The temperature of the expansion body 662 rises as the temperature of the support seat 61 rises. The volume of mercury is proportional to the temperature, and the mercury can squeeze the first piston 663 to move left. One end of a piston rod 664 is installed at the left end of the first piston 663. A valve body 665 is fixedly connected to the left end of the copper tube 661. The front surface of the valve body 665 is connected to the conduit 67. A cold water pipe is externally connected to the rear side of the valve body 665. A spring 668 and a valve core 666 are respectively inserted into the left and right ends of the inner cavity of the valve body 665. The right end of the valve body 665 is connected to the left end of the piston rod 664. Under the elastic force of the spring 668, the valve core 666 is pushed to move right. A diversion hole 667 is provided on the front surface of the valve core 666. As the valve core 666 moves left, the cross-sectional area of the diversion hole 667 communicating with the cold water pipe increases, and the water cooling flow rate gradually increases.

[0029] As a preferred solution, further, the explosion-proof component 68 includes a box body 681 vertically embedded at the bottom of the support base 61. At least two pressure relief holes 682 are equidistantly arranged at the top of the outer wall of the box body 681. The pressure relief holes 682 can discharge rubber to reduce the rubber pressure in the support base 61. A rotating shaft 683 is installed in the middle of the inner cavity of the box body 681 in the front-back direction through a bearing. A gear 684 and a turntable 685 are respectively installed at the front and rear ends of the rotating shaft 683. One end of a connecting rod 686 is connected to the outer edge of the front surface of the turntable 685 through a pin shaft. The other end of the connecting rod 686 is connected to a second piston 687 inserted into the top of the inner cavity of the box body 681 through a pin shaft. A counterweight 688 that can slide up and down is inserted into the bottom of the inner cavity of the box body 681. A rack 689 meshed with the gear 684 is installed at the top of the counterweight 688. The gravity of the counterweight 688 drives the rack 689 to move downward. Under the transmission of the rack 689 and the gear 684, the turntable 685 rotates counterclockwise, so that the connecting rod 686 pulls the second piston 687 to move upward. A rubber pad is bonded to the bottom of the inner cavity of the box body 681 to play a buffering role in the descent of the counterweight 688.

[0030] Working principle:

[0031] Step 1, the filtered rubber is put into the feeder 5. The rubber is introduced into the machine body 3 through the feeder 5. The gear pump 4 drives the screw in the machine body 3 to rotate, so that the rubber moves from left to right. The filter screen 64 filters the rubber to remove solid impurities in the rubber, and then the rubber is extruded from the die head 65 to realize the rubber filtering process;

[0032] Step 2, as the filter screen 64 filters the rubber, the pressure of the rubber in the support base 61 increases, resulting in a temperature rise. Under the heat conduction condition between the support base 61 and the copper pipe 661, the temperature of the expansion body 662 rises. The volume of the expansion body 662 increases with the increase of temperature. When the volume of the expansion body 662 expands, it squeezes the first piston 663 to the left, prompting the valve core 666 to move leftward. The diversion hole 667 gradually increases the cold water flow rate. The cold water flows through the flow channel 62 to cool the rubber. When the temperature drops, the volume of the expansion body 662 decreases, and the elastic force of the spring 668 pushes the valve core 666 to move rightward. The conduction area of the diversion hole 667 decreases, reducing the cold water flow rate. Therefore, the automatic temperature control of the support base 61 is realized to prevent the rubber from being coked due to excessive temperature;

[0033] Step 3: As the impurities blocked by the filter net 64 increase and the permeability of the filter net 64 gradually decreases, when the pressure in the support base 61 increases accordingly, the rubber can squeeze the second piston 687 downward, prompting the connecting rod 686 to pull the turntable 685 to rotate clockwise. Driven by the gear 684 and the rack 689, the counterweight 688 rises. The second piston 687 connects the pressure relief hole 682 with the support base 61, and the rubber can be discharged from the pressure relief hole 682 to relieve the pressure on the rubber and avoid potential safety hazards. The counterweight 688 blocks the proximity switch 6810, and the proximity switch 6810 feeds an electrical signal back to the control box 2, and the control box 2 gives an alarm to prompt the staff that the filter net 64 needs to be cleaned.

[0034] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber filtering and kneading machine driven by a gear pump, comprising a machine base (1), a control box (2) and a machine body (3). The control box (2) and the machine body (3) are both installed on the upper surface of the machine base (1), and the machine body (3) is kept horizontal. It is characterized in that, The rubber filter gum machine driven by a gear pump further includes: A gear pump (4), fixedly connected to the left side of the fuselage (3), and the gear pump (4) is electrically connected to the control box (2), and the screw in the fuselage (3) is driven to rotate by the gear pump (4); A feeder (5), installed on the top of the fuselage (3), and the feeder (5) is electrically connected to the control box (2); A filtering mechanism (6), fixedly connected to the right end of the fuselage (3); The filtering mechanism (6) includes: A support seat (61), fixedly connected to the right end of the fuselage (3), a flow channel (62) is opened inside the support seat (61), and an installation groove (63) is opened on the right side of the inner cavity of the support seat (61); A filter screen (64), inserted into the inner cavity of the installation groove (63); A machine head (65), one side is connected to the front of the support seat (61) through a hinge, and the other side is locked to the support seat (61) through a bolt; A temperature control component (66), horizontally embedded at the bottom end of the left side wall of the support seat (61); A conduit (67), one end is installed on the outer wall of the temperature control component (66), and the other end is communicated with the flow channel (62); An explosion-proof component (68), vertically embedded at the bottom end of the support seat (61); The explosion-proof component (68) includes: A box body (681), vertically embedded at the bottom end of the support seat (61); At least two pressure relief holes (682), equidistantly opened at the top of the outer wall of the box body (681); A rotating shaft (683), installed in the middle of the inner cavity of the box body (681) along the front-rear direction through a bearing; A gear (684) and a turntable (685), respectively installed at the front and rear ends of the rotating shaft (683); A connecting rod (686), one end is connected to the outer edge of the outer wall of the turntable (685) through a pin shaft; A second piston (687), slidably inserted into the top of the inner cavity of the box body (681), and the bottom end of the second piston (687) is connected to the other end of the connecting rod (686) through a pin shaft; A counterweight (688), slidably inserted into the bottom of the inner cavity of the box body (681); A rack (689), vertically installed on the top of the counterweight (688), and the rack (689) is meshed with the gear (684), and under the action of the gravity of the counterweight (688), the rack (689) descends, and then the gear (684) drives the turntable (685) to rotate counterclockwise; A proximity switch (6810), horizontally embedded at the bottom end of the left side wall of the box body (681), and the proximity switch (6810) is electrically connected to the control box (2).

2. A rubber filtering and kneading machine driven by a gear pump according to claim 1, characterized in that Both ends of the flow channel (62) are chamfered.

3. A rubber filtering and mixing machine driven by a gear pump according to claim 2, characterized in that There is a gap between the filter screen (64) and the machine head (65).

4. A rubber filter rubber machine driven by a gear pump according to claim 3, characterized in that, The temperature control component (66) includes: A copper tube (661), horizontally embedded at the bottom end of the left side wall of the support seat (61); An expansion body (662), filled in the right side of the inner cavity of the copper tube (661); A first piston (663), slidably inserted into the middle of the inner cavity of the copper tube (661); A piston rod (664), one end is installed on the left end of the first piston (663); The valve body (665) is fixedly connected to the left end of the copper pipe (661). The front surface of the valve body (665) is connected to the conduit (67), and a cold water pipe is connected to the rear side of the valve body (665). The spring (668) and the valve core (666) are respectively inserted into the left and right sides of the inner cavity of the valve body (665). The valve core (666) is connected to the other end of the piston rod (664). Under the elastic force of the spring (668), the valve core (666) is pushed to move rightward. A diversion hole (667) is formed in the outer wall of the valve core (666).

5. A rubber filter gum machine driven by a gear pump according to claim 4, characterized in that, The material of the expansion body (662) is mercury.

6. A rubber filter rubber machine driven by a gear pump according to claim 5, characterized in that The gravity of the counterweight (688) can drive the rack (689) to move downward. Under the transmission of the rack (689) and the gear (684), the turntable (685) rotates counterclockwise, so that the connecting rod (686) pulls the second piston (687) to move upward.

7. A rubber filtering and mixing machine driven by a gear pump according to claim 6, wherein A rubber pad is adhered to the bottom of the inner cavity of the box body (681).

Images