Multi-pump glue supply machine

Abstract

The utility model provides a multi-pump glue supply machine. The multi-pump glue supply machine comprises a base plate, two tank bodies are arranged on the base plate, automatic material supplementing mechanisms are arranged in the tank bodies, and each automatic material supplementing mechanism comprises an isolation box, a floating ball, a U-shaped transmission rod, a fixing box, a magnetic block, a magnetic control switch, a feeding pipe and a first valve. The floating ball is arranged in the isolation box, the U-shaped transmission rod is installed on the top of the tank body in a sliding mode, and one end of the U-shaped transmission rod extends into the isolation box and is connected with the top of the isolation box in a sliding mode. The multi-pump glue supply machine provided by the utility model has the advantages that the automatic material supplementing mechanism is arranged to ensure that raw materials are sufficient, the temperature control mechanism and the annular weighing device are arranged to ensure that the device can monitor the temperature of glue in the tank body and accurately discharge the glue, and the mixing mechanism and the staggered extrusion mechanism are arranged to ensure that the glue is stably output.

Description

Technical Field

[0001] The utility model belongs to the technical field of glue supply, in particular to a multi-pump glue supply machine. Background Art

[0002] At present, in the fields of hollow glass, lamps, ships, automobiles, building materials, etc., glue guns and other glue-spraying equipment are needed to glue and seal. The machinery for supplying glue to the glue-spraying equipment generally has a structure of a single glue pump matched with a single-component glue barrel, that is, one component of glue is sucked out from the glue with a glue pump, and then mixed with another one or more components of glue. The glue cylinder is divided into two chambers by a piston, the one with a piston rod is called the front chamber, and the other without a piston rod is called the rear chamber. The glue pump discharges glue from the front chamber, and the glue discharge point is in the direction of the piston rod of the glue pump. It is easy to glue from the glue piston rod. Since the piston action frequency is too fast, the service life of the glue pump is short. When the single glue pump supplies glue, there are dead points during operation, which cause mixing fluctuations and unstable gluing. In addition, since the inner bottom of the glue is flat, the entire glue is placed under the equipment and a suction method is used, it is easy to leave a lot of glue at the bottom of the barrel, causing waste.

[0003] After searching, in the related technology, the patent document with authorization publication number CN201404901Y discloses a machine for supplying glue to gluing equipment, especially a multi-pump glue supply machine. The technical solution is: it includes a glue barrel, a frame, multiple glue pumps arranged in parallel, and a glue supply pipeline. The glue barrel and the glue pump are arranged on the frame. The glue inlets of the multiple glue pumps are connected to a glue barrel of a component through a pipeline, and the glue outlets of the multiple glue pumps are connected to the glue supply pipeline to form multiple glue pumps arranged in parallel. The glue inlet and the glue outlet of the glue pump are arranged in the back chamber of the glue pump. The beneficial effects of the utility model are that there is no glue leakage and the service life of the glue pump is extended. The multiple glue pumps arranged in parallel move in an interlaced relay to avoid the generation of working dead points and ensure stable glue supply. At the same time, the glue is discharged smoothly to avoid waste caused by residual glue in the barrel.

[0004] With respect to the above-mentioned related technologies, the inventor believes that the following defects exist: the glue in the device needs to be manually controlled and replenished, and the quantity and temperature of the glue output from the device cannot be controlled.

[0005] Therefore, it is necessary to provide a new multi-pump glue supply machine to solve the above technical problems. Utility Model Content

[0006] The technical problem solved by the utility model is to provide a multi-pump glue supply machine which ensures sufficient raw materials by arranging an automatic feeding mechanism, monitors the temperature of glue in the tank by arranging a temperature control mechanism and a ring weigher, and discharges the glue accurately by arranging a mixing mechanism and a staggered extrusion mechanism, and ensures stable output of glue.

[0007] In order to solve the above technical problems, the multi-pump glue supply machine provided by the utility model includes: a base plate, two tank bodies are arranged on the base plate, and automatic feeding mechanisms are arranged in the tank bodies, and the automatic feeding mechanisms include an isolation box, a float, a U-shaped transmission rod, a fixed box, a magnetic block, a magnetic control switch, a feeding pipe and a valve. The isolation box is fixedly installed on an inner wall of one side of the tank body, the float is arranged in the isolation box, the U-shaped transmission rod is slidably installed on the top of the tank body, one end of the U-shaped transmission rod extends into the isolation box and is slidably connected with the top of the isolation box, the fixed box is fixedly installed on an outer wall of one side of the tank body, the other end of the U-shaped transmission rod extends into the fixed box, the magnetic block is slidably installed in the fixed box, the magnetic control switch is fixedly installed on the bottom inner wall of the fixed box, the magnetic block is adapted to the magnetic control switch, and one end of the U-shaped transmission rod extending into the fixed box is fixedly connected with the top of the magnetic block, the feeding pipe is fixedly installed on the top of the tank body and is connected with the tank body, and the valve is arranged on the feeding pipe.

[0008] As a further solution of the utility model, a temperature control mechanism is provided in the tank body, and the temperature control mechanism includes a temperature monitor, a temperature probe, a plurality of electric heating wire heating rings and a partition. The temperature monitor is fixedly mounted on the top inner wall of the tank body, the temperature probe is fixedly mounted on the temperature monitor, the plurality of electric heating wire heating rings are all arranged on the inner wall of the tank body, the partition is fixedly mounted in the tank body, and the partition is adapted to the plurality of electric heating wire heating rings.

[0009] As a further solution of the utility model, two mounting frames are fixedly mounted on the base plate, two annular weighing devices are fixedly mounted on the tops of the two mounting frames respectively, and the tops of the annular weighing devices are connected to the bottom of the tank body.

[0010] As a further solution of the utility model, a mixing mechanism is arranged on the base plate, and the mixing mechanism includes a motor 1, a shell, an extrusion screw 1, two extrusion screws 2, a gear 1, two gears 2 and a discharge pipe. The motor 1 is fixedly mounted on the top of the base plate, the shell is fixedly mounted on the top of the base plate, the extrusion screw 1 and the two extrusion screws 2 are both rotatably mounted in the shell, the gear 1 is fixedly sleeved on one end of the extrusion screw 1, the two gears 2 are respectively fixedly sleeved on one end of the two extrusion screws 2, the gear 1 is respectively meshed with the two gears 2, and the discharge pipe is fixedly mounted on one side outer wall of the shell and is communicated with the shell.

[0011] As a further solution of the utility model, a staggered extrusion mechanism is arranged on the substrate, and the staggered extrusion mechanism includes a sleeve, an extrusion barrel, a dividing plate, two tooth plates, two round rods, a second motor, a third gear, two proximity sensors, two conical extrusion heads, a three-way pipe and two second valves. The sleeve and the extrusion barrel are both fixedly mounted on the top of the substrate, two through holes one are provided on one side of the sleeve, and the two through holes one are respectively matched with the two round rods, and two through holes two are provided on one side of the extrusion barrel, and the two through holes two are respectively matched with the two round rods, the two tooth plates are relatively slidably mounted in the sleeve up and down, the two round rods are respectively fixedly connected to the two tooth plates, the second motor is fixedly mounted in the sleeve, and the third gear is fixedly sleeved on the output of the second motor. On the shaft, two tooth plates are respectively meshed with the three-phase gears, two proximity sensors are fixedly mounted on the inner wall of one side of the sleeve, the dividing plate is fixedly mounted in the extrusion barrel, the space in the extrusion barrel is divided into an upper space and a lower space by the dividing plate, two conical extrusion heads are respectively slidably mounted in the upper space and the lower space, one end of the two round rods respectively passes through the corresponding through hole one and the corresponding through hole two and extends into the upper space and the lower space, one end of the two round rods is respectively fixedly connected with the corresponding conical extrusion heads, the three-way pipe is fixedly mounted on one end of the discharge pipe, the feed port of the three-way pipe is connected with the discharge pipe, the two discharge ports of the three-way pipe are respectively connected with the upper space and the lower space, and two valves two are respectively arranged on the two discharge ports of the three-way pipe.

[0012] As a further solution of the utility model, two material guide pipes are fixedly installed on the bottom of the two tank bodies, the two material guide pipes are respectively connected with the two tank bodies, the two material guide pipes respectively pass through two annular weighing devices, two valves three are respectively provided on the two material guide pipes, two cam rotor pumps are respectively fixedly installed on the other ends of the two material guide pipes, two material guide pipes two are respectively fixedly installed on the discharge ports of the two cam rotor pumps, and the other ends of the two material guide pipes two are both connected with the shell.

[0013] Compared with the related art, the multi-pump glue supply machine provided by the utility model has the following beneficial effects:

[0014] 1. The utility model is provided with an automatic feeding mechanism, so that the device can automatically replenish the remaining glue in the tank to ensure sufficient raw materials;

[0015] 2. The utility model is provided with a temperature control mechanism and a ring weigher, so that the device can monitor the temperature of the glue in the tank, and control the amount of glue output from each tank, so as to discharge the material accurately;

[0016] 3. The utility model extrude and mix the output glue by setting a mixing mechanism and a staggered extrusion mechanism to ensure the stable output of the glue. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the multi-pump glue supply machine of the utility model;

[0019] Figure 2 It is a cross-sectional schematic diagram of a part of the structure of the multi-pump glue supply machine of the utility model;

[0020] Figure 3 It is a partial three-dimensional structural schematic diagram of the multi-pump glue supply machine of the utility model;

[0021] Figure 4 It is a schematic diagram of the partial structural assembly of the multi-pump glue supply machine of the utility model;

[0022] Figure 5 This is a schematic diagram of the partial structural disassembly of the multi-pump glue supply machine of the utility model.

[0023] In the figure: 1, substrate; 2, tank; 3, isolation box; 4, float; 5, U-shaped transmission rod; 6, fixing box; 7, magnetic block; 8, magnetic control switch; 9, feed pipe; 10, valve one; 11, temperature monitor; 12, temperature probe; 13, electric heating wire heating ring; 14, partition; 15, mounting frame; 16, ring weigher; 17, motor one; 18, housing; 19, extrusion screw one; 20, extrusion screw two; 21, gear one; 22, gear two; 23, discharge pipe; 24, sleeve; 25, extrusion barrel; 26, dividing plate; 27, tooth plate; 28, round rod; 29, motor two; 30, gear three; 31, proximity sensor; 32, conical extrusion head; 33, three-way pipe; 34, valve two; 35, guide pipe; 36, valve three; 37, cam rotor pump; 38, guide pipe two. DETAILED DESCRIPTION

[0024] Please refer to Figures 1 to 5 ,in, Figure 1 It is a three-dimensional structural schematic diagram of the multi-pump glue supply machine of the utility model; Figure 2 It is a cross-sectional schematic diagram of a part of the structure of the multi-pump glue supply machine of the utility model; Figure 3 It is a partial three-dimensional structural schematic diagram of the multi-pump glue supply machine of the utility model; Figure 4 It is a schematic diagram of the partial structural assembly of the multi-pump glue supply machine of the utility model; Figure 5The schematic diagram of partial structural disassembly of the multi-pump glue feeding machine of the utility model. The multi-pump glue feeding machine comprises: a base plate 1, two tank bodies 2 are arranged on the base plate 1, and automatic feeding mechanisms are arranged in the tank bodies 2, and the automatic feeding mechanisms include an isolation box 3, a floating ball 4, a U-shaped transmission rod 5, a fixed box 6, a magnetic block 7, a magnetic control switch 8, a feeding pipe 9 and a valve 10. The isolation box 3 is fixedly installed on the inner wall of one side of the tank body 2, the floating ball 4 is arranged in the isolation box 3, the U-shaped transmission rod 5 is slidably installed on the top of the tank body 2, and one end of the U-shaped transmission rod 5 extends into the isolation box 3 and is connected to the isolation box 3. The fixed box 6 is fixedly mounted on one side outer wall of the tank body 2, the other end of the U-shaped transmission rod 5 extends into the fixed box 6, the magnetic block 7 is slidably mounted in the fixed box 6, the magnetic control switch 8 is fixedly mounted on the bottom inner wall of the fixed box 6, the magnetic block 7 is adapted to the magnetic control switch 8, one end of the U-shaped transmission rod 5 extending into the fixed box 6 is fixedly connected to the top of the magnetic block 7, the feeding pipe 9 is fixedly mounted on the top of the tank body 2 and is connected to the tank body 2, and the valve 10 is arranged on the feeding pipe 9.

[0025] Through the cooperation between the float 4 and the U-shaped transmission rod 5, the device can automatically replenish the remaining glue in the tank 2 to ensure sufficient raw materials.

[0026] A temperature control mechanism is provided in the tank body 2, and the temperature control mechanism includes a temperature monitor 11, a temperature probe 12, a plurality of electric heating wire heating rings 13 and a partition 14. The temperature monitor 11 is fixedly mounted on the top inner wall of the tank body 2, the temperature probe 12 is fixedly mounted on the temperature monitor 11, the plurality of electric heating wire heating rings 13 are all arranged on the inner wall of the tank body 2, and the partition 14 is fixedly mounted in the tank body 2, and the partition 14 is adapted to the plurality of electric heating wire heating rings 13.

[0027] Through the cooperation between the temperature monitor 11 and the electric heating wire heating ring 13, the device can monitor the temperature of the glue in the tank body 2 and perform heating and heat preservation.

[0028] Two mounting frames 15 are fixedly mounted on the base plate 1 , and two annular weighing devices 16 are fixedly mounted on the tops of the two mounting frames 15 , respectively. The tops of the annular weighing devices 16 are connected to the bottom of the tank body 2 .

[0029] Through the cooperation between the mounting frame 15 and the annular weighing device 16, the amount of glue outputted from each tank body 2 is controlled to achieve accurate material discharge.

[0030] A mixing mechanism is provided on the substrate 1, and the mixing mechanism includes a motor 17, a shell 18, an extrusion screw 19, two extrusion screws 20, a gear 121, two gears 22 and a discharge pipe 23. The motor 17 is fixedly mounted on the top of the substrate 1, the shell 18 is fixedly mounted on the top of the substrate 1, the extrusion screw 19 and the two extrusion screws 20 are both rotatably mounted in the shell 18, the gear 121 is fixedly sleeved on one end of the extrusion screw 19, the two gears 22 are respectively fixedly sleeved on one end of the two extrusion screws 20, the gear 121 is respectively meshed with the two gears 22, and the discharge pipe 23 is fixedly mounted on one side outer wall of the shell 18 and is communicated with the shell 18.

[0031] The output shaft of the motor 17 extends into the housing 18 and is fixedly connected to one end of the extrusion screw 19. Through the cooperation between the extrusion screw 19 and the two extrusion screws 20, the output glue is pressurized and stirred to ensure that the glue is fully mixed.

[0032] The substrate 1 is provided with a staggered extrusion mechanism, which includes a sleeve 24, an extrusion barrel 25, a dividing plate 26, two tooth plates 27, two round rods 28, a motor 29, a gear 30, two proximity sensors 31, two conical extrusion heads 32, a three-way pipe 33 and two valves 2 34. The sleeve 24 and the extrusion barrel 25 are both fixedly mounted on the top of the substrate 1. One side of the sleeve 24 is provided with two through holes 1, and the two through holes 1 are respectively matched with the two round rods 28. One side of the extrusion barrel 25 is provided with two through holes 2, and the two through holes 2 are respectively matched with the two round rods 28. The two tooth plates 27 are relatively slidably mounted in the sleeve 24 up and down, and the two round rods 28 are respectively fixedly connected to the two tooth plates 27. The motor 29 is fixedly mounted in the sleeve 24, and the gear 3 30 is fixedly sleeved on the output of the motor 29 On the shaft, two tooth plates 27 are respectively meshed with gear three 30, and two proximity sensors 31 are fixedly mounted on the inner wall of one side of the sleeve 24. The dividing plate 26 is fixedly mounted in the extrusion barrel 25, and the space in the extrusion barrel 25 is divided into an upper space and a lower space by the dividing plate 26. Two conical extrusion heads 32 are respectively slidably mounted in the upper space and the lower space, and one end of the two round rods 28 passes through the corresponding through hole one and the corresponding through hole two and extends into the upper space and the lower space, and one end of the two round rods 28 is respectively fixedly connected with the corresponding conical extrusion heads 32, and the three-way pipe 33 is fixedly mounted on one end of the discharge pipe 23, and the feed port of the three-way pipe 33 is connected to the discharge pipe 23, and the two discharge ports of the three-way pipe 33 are respectively connected to the upper space and the lower space, and two valves 2 34 are respectively arranged on the two discharge ports of the three-way pipe 33.

[0033] The cooperation between the tooth plate 27 and the gear three 30 ensures the stable and continuous output of the glue.

[0034] Two material guide pipes 35 are fixedly installed at the bottom of the two tank bodies 2, and the two material guide pipes 35 are respectively connected to the two tank bodies 2. The two material guide pipes 35 pass through two annular weighing devices 16 respectively. Two valves three 36 are respectively provided on the two material guide pipes 35. Two cam rotor pumps 37 are respectively fixedly installed on the other ends of the two material guide pipes 35. Two material guide pipes two 38 are respectively fixedly installed on the discharge ports of the two cam rotor pumps 37. The other ends of the two material guide pipes two 38 are both connected to the shell 18.

[0035] The working principle of the multi-pump glue supply machine provided by the utility model is as follows:

[0036] The first step: first input glue into the tank body 2. Due to the buoyancy, the magnetic block 7 is kept away from the magnetic control switch 8 with the cooperation of the float 4 and the U-shaped transmission rod 5. After the glue is injected, the valve 10 is closed to stop the injection of glue. Under the action of the two cam rotor pumps 37, the glue in the tank body 2 is drawn out, and the output quantity is controlled by the annular weighing device 16 and the valve three 36, and is transported to the housing 18 through the guide pipe 35 and the guide pipe two 38. The motor 17 is started to drive the extrusion screw 19 and the gear The wheel 1 21 rotates, thereby driving the two extrusion screws 20 and the two gears 22 to rotate. The glue delivered into the housing 18 is mixed through the cooperation between the extrusion screw 1 19 and the two extrusion screws 20, and is output through the discharge pipe 23. After passing through the tee pipe 33 and the valve 2 34, it is respectively delivered into the upper space and the lower space of the extrusion barrel 25. Under the cooperation of the two tooth plates 27 and the gear 3 30, the two conical extrusion heads 32 alternately extrude the glue and finally extrude it evenly out of the extrusion barrel 25.

[0037] The second step: when the glue in the device is insufficient, the float 4 drives the U-shaped transmission rod 5 to move downward, so that the magnetic block 7 approaches the magnetic control switch 8 and is triggered, so that the valve 10 is opened, and the raw glue is transported into the tank 2 by the external conveying equipment that remains open until the reserve amount of glue is sufficient. Due to the effect of buoyancy, with the cooperation of the float 4 and the U-shaped transmission rod 5, the magnetic block 7 is moved away from the magnetic control switch 8, and the valve 10 is closed again.

[0038] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0039] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0040] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A multi-pump glue supply machine, characterized in that: include: A base plate, two tank bodies are arranged on the base plate, and automatic feeding mechanisms are arranged in the tank bodies, and the automatic feeding mechanisms include an isolation box, a float, a U-shaped transmission rod, a fixed box, a magnetic block, a magnetic control switch, a feeding pipe and a valve. The isolation box is fixedly installed on an inner wall of one side of the tank body, and the float is arranged in the isolation box. The U-shaped transmission rod is slidably installed on the top of the tank body, and one end of the U-shaped transmission rod extends into the isolation box and is slidably connected with the top of the isolation box. The fixed box is fixedly installed on an outer wall of one side of the tank body, and the other end of the U-shaped transmission rod extends into the fixed box. The magnetic block is slidably installed in the fixed box, and the magnetic control switch is fixedly installed on the bottom inner wall of the fixed box. The magnetic block is adapted to the magnetic control switch, and one end of the U-shaped transmission rod extending into the fixed box is fixedly connected with the top of the magnetic block. The feeding pipe is fixedly installed on the top of the tank body and is connected with the tank body, and the valve is arranged on the feeding pipe.

2. The multi-pump glue supply machine according to claim 1, characterized in that: A temperature control mechanism is arranged inside the tank body, and the temperature control mechanism includes a temperature monitor, a temperature probe, a plurality of electric heating wire heating rings and a partition. The temperature monitor is fixedly mounted on the top inner wall of the tank body, the temperature probe is fixedly mounted on the temperature monitor, the plurality of electric heating wire heating rings are arranged on the inner wall of the tank body, the partition is fixedly mounted inside the tank body, and the partition is adapted to the plurality of electric heating wire heating rings.

3. The multi-pump glue supply machine according to claim 1, characterized in that: Two mounting frames are fixedly mounted on the base plate, and two annular weighing devices are fixedly mounted on the tops of the two mounting frames respectively, and the tops of the annular weighing devices are connected to the bottom of the tank body.

4. The multi-pump glue supply machine according to claim 2, characterized in that: A mixing mechanism is provided on the base plate, and the mixing mechanism includes a motor 1, a shell, an extrusion screw 1, two extrusion screws 2, a gear 1, two gears 2 and a discharge pipe. The motor 1 is fixedly installed on the top of the base plate, the shell is fixedly installed on the top of the base plate, the extrusion screw 1 and the two extrusion screws 2 are both rotatably installed in the shell, the gear 1 is fixedly sleeved on one end of the extrusion screw 1, the two gears 2 are respectively fixedly sleeved on one end of the two extrusion screws 2, the gear 1 is respectively meshed with the two gears 2, and the discharge pipe is fixedly installed on one side outer wall of the shell and is communicated with the shell.

5. The multi-pump glue supply machine according to claim 2, characterized in that: The substrate is provided with a staggered extrusion mechanism, which includes a sleeve, an extrusion barrel, a dividing plate, two tooth plates, two round rods, a second motor, a third gear, two proximity sensors, two conical extrusion heads, a three-way pipe and two second valves. The sleeve and the extrusion barrel are both fixedly mounted on the top of the substrate, one side of the sleeve is provided with two through holes one, and the two through holes one are respectively matched with the two round rods, one side of the extrusion barrel is provided with two through holes two, and the two through holes two are respectively matched with the two round rods, the two tooth plates are relatively slidably mounted in the sleeve up and down, the two round rods are respectively fixedly connected to the two tooth plates, the second motor is fixedly mounted in the sleeve, the third gear is fixedly sleeved on the output shaft of the second motor, and the two tooth plates are fixedly mounted on the output shaft of the second motor. They are respectively meshed with three phases of the gears, and the two proximity sensors are fixedly mounted on the inner wall of one side of the sleeve. The dividing plate is fixedly mounted in the extrusion barrel, and the space in the extrusion barrel is divided into an upper space and a lower space by the dividing plate. The two conical extrusion heads are respectively slidably mounted in the upper space and the lower space, and one end of the two round rods respectively passes through the corresponding through hole one and the corresponding through hole two and extends into the upper space and the lower space, and one end of the two round rods is respectively fixedly connected to the corresponding conical extrusion heads, and the three-way pipe is fixedly mounted on one end of the discharge pipe, and the feed port of the three-way pipe is connected to the discharge pipe, and the two discharge ports of the three-way pipe are respectively connected to the upper space and the lower space, and the two valves two are respectively arranged on the two discharge ports of the three-way pipe.

6. The multi-pump glue supply machine according to claim 4, characterized in that: Two material guide pipes are fixedly installed at the bottom of the two tank bodies, the two material guide pipes are connected with the two tank bodies respectively, the two material guide pipes pass through two annular weighing devices respectively, two valves three are respectively arranged on the two material guide pipes, two cam rotor pumps are fixedly installed on the other ends of the two material guide pipes, two material guide pipes two are fixedly installed on the discharge ports of the two cam rotor pumps, and the other ends of the two material guide pipes two are connected with the shell.

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