Pin type cold feed extruder

Abstract

The utility model relates to a pin type cold feed extruder which comprises a rack, a machine barrel, a plurality of pins, a plurality of mounting plates and a maintenance assembly, the machine barrel is arranged on the rack, the mounting plates are distributed along the axis of the machine barrel, and the mounting plates are slidably connected to the machine barrel in the circumferential radial direction of the machine barrel; the pins are distributed on the mounting plates in the length direction of the machine barrel, the overhauling assembly comprises a plurality of overhauling air cylinders, the overhauling air cylinders correspond to the mounting plates in a one-to-one mode, and the overhauling air cylinders are used for driving the mounting plates to move and enabling the pins to penetrate into the machine barrel. The device has the effects that the speed of replacing the damaged pin is increased, and the overhaul work efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of cold feed extruders, and in particular to a pin-type cold feed extruder. Background Art

[0002] Pin-type cold feed extruders are commonly used in the production of rubber. Pins are inserted radially into the cylinder from the circumference of the extruder cylinder to shear and stir the rubber material flowing in the cylinder.

[0003] At present, the Chinese utility model patent with publication number CN214726361U discloses a pin cold feed extruder with adjustable pin length, including a frame and a barrel. The surface of the barrel is provided with a pin adjustment mechanism; the pin adjustment mechanism includes a rotating ring, and a groove is provided on the top of the rotating ring. The bottom of the rotating ring is fixedly connected to a fixed barrel that penetrates into the interior of the barrel, and the bottom of the rotating ring is rotatably connected to a movable wheel located inside the fixed barrel. The utility model has the effect of adjusting the length of the pin inserted into the barrel.

[0004] Pins are important components of the equipment and are also vulnerable parts. Pins need to be replaced in time if there is a problem. However, the head of the pin is inside the barrel, and the amount and location of damage cannot be directly determined. When replacement is required, the pins need to be taken out of the barrel one by one, which takes a long time to inspect and repair, and the work efficiency is low. Utility Model Content

[0005] In order to increase the speed of replacing damaged pins and improve the efficiency of maintenance work, the present application provides a pin-type cold feed extruder.

[0006] The present application provides a pin-type cold feed extruder, which adopts the following technical solution:

[0007] A pin-type cold feed extruder comprises a frame, a barrel, a plurality of pins, a plurality of mounting plates and an inspection assembly, wherein the barrel is arranged on the frame, the mounting plates are distributed along the axis of the barrel, the mounting plates are slidably connected to the barrel along the circumferential radial direction of the barrel, the pins are distributed on the mounting plates along the length direction of the barrel, and the inspection assembly comprises a plurality of inspection cylinders, a plurality of the inspection cylinders correspond one-to-one to a plurality of the mounting plates, and the inspection cylinders are used to drive the mounting plates to move and allow the pins to penetrate the barrel.

[0008] By adopting the above technical solution, when the pins of the extruder are damaged or need regular maintenance, the staff can start the maintenance cylinder, the maintenance cylinder drives the mounting plate to move, and the mounting plate drives the pins to move away from the barrel until the pins on the mounting plate are separated from the barrel. The staff can directly observe the pins on the mounting plate from between the mounting plate and the outer wall of the barrel, which is convenient for directly determining the amount and location of damage and improving maintenance efficiency. The pins are directly replaced on the mounting plate. After completion, the mounting plate is moved toward the barrel by the maintenance cylinder and the pins are inserted into the barrel.

[0009] Optionally, a limiting bolt is provided on the mounting plate, a countersunk hole is opened on the mounting plate, the pin is located in the countersunk hole, the limiting bolt is threadedly connected to the countersunk hole, and the limiting bolt limits the movement of the pin.

[0010] By adopting the above technical solution, the countersunk hole is convenient for installing the pin, and the movement of the pin in the countersunk hole can be limited by the limit bolt. When replacement is needed, the limit bolt can be unscrewed from the countersunk hole, and then the pin can be replaced. The structure on the mounting plate is more reasonable, and the replacement of the pin is convenient, saving time and effort.

[0011] Optionally, a limiting column is provided on the side of the pin facing away from the barrel, and a matching groove is provided at the tail end of the limiting bolt, and the matching groove is used to clamp the limiting column.

[0012] By adopting the above technical solution, when the limiting column of the pin and the matching groove of the limiting bolt are engaged with each other, the strength of the limiting bolt is improved, and the movement of the pin in the countersunk hole is further restricted.

[0013] Optionally, a plurality of abutment rings are provided on the barrel, and the plurality of abutment rings correspond to the pins one-to-one. The pins pass through the abutment rings, and the abutment rings are used to abut against the side wall of the mounting plate.

[0014] By adopting the above technical solution, since the outer wall of the barrel is cylindrical, the mounting plate directly abuts against the outer wall of the barrel, the mounting plate cannot fit the outer wall of the barrel, and some pins are exposed from the outer wall of the barrel; after an abutment ring is provided on the outside of the barrel, the abutment ring improves the support effect of the barrel on the mounting plate, and makes the pins completely wrapped, reducing the impact of the external environment on the pins, and extending the service life of the pins.

[0015] Optionally, the barrel is rotatably connected to the frame, and the frame is also provided with a rotating member that drives the barrel to rotate, the rotating member includes a rotating gear, a driving gear and a driving motor, the rotating gear is provided on the barrel, the driving gear is rotatably connected to the frame, the driving gear is engaged with the rotating gear, and the driving motor drives the driving gear to rotate.

[0016] By adopting the above technical solution, since the mounting plates are distributed along the circumference of the barrel, the positions of some mounting plates are difficult to observe. The staff can start the drive motor, the drive motor drives the drive gear to rotate, the drive gear drives the rotating gear to rotate, and the rotating gear drives the barrel to rotate, and the mounting plates that were originally difficult to observe are rotated to an angle that is easy to observe, thereby reducing the labor intensity of the staff.

[0017] Optionally, a sealing ring is provided on the barrel to improve the sealing effect with the pin.

[0018] By adopting the above technical solution, the sealing ring improves the sealing effect between the barrel and the pin, reduces the material overflow from between the pin and the barrel, and improves the rationality of the equipment.

[0019] Optionally, the sealing ring is provided with a guiding slope for facilitating the insertion of the pin.

[0020] By adopting the above technical solution, the sealing ring has elasticity, the sealing ring needs to fit tightly with the pin, the sealing ring and the pin are in interference fit, and the pin is easily inserted into the sealing ring through the guiding bevel, thereby improving the rationality of the maintenance component.

[0021] Optionally, the mounting plate is further provided with reinforcing ribs, and the length of the reinforcing ribs is parallel to the length direction of the barrel.

[0022] By adopting the above technical solution, during the operation of the equipment, the pins are subjected to the extrusion force of the rubber, which causes the pins to tend to move away from the axis of the barrel. The mounting plate is easily deformed and bent under the force, and the reinforcing ribs increase the strength of the mounting plate, reducing the occurrence of deformation of the mounting plate.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The maintenance assembly allows the pins on the mounting plate to be moved together, eliminating the need to remove the pins one by one. The status of the pins can be observed and the pins that need to be replaced can be accurately located, greatly improving maintenance efficiency.

[0025] 2. The rotating part is used to change the position of the mounting plate relative to the frame, making it easier for staff to observe the status of the pins. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of a pin-type cold feed extruder.

[0027] Figure 2 yes Figure 1 The cross-sectional view of the middle barrel is used to show the fitting relationship between the mounting plate and the barrel.

[0028] Figure 3 yes Figure 1 Schematic diagram of the structure of the rotating parts.

[0029] Figure markings: 1. Frame; 2. Cylinder; 21. Matching hole; 22. Sealing ring; 23. Guide slope; 3. Pin; 31. Limiting column; 4. Mounting plate; 41. Reinforcing rib; 42. Countersunk hole; 43. Limiting bolt; 44. Matching groove; 5. Inspection assembly; 51. Inspection cylinder; 52. Mounting plate; 521. Sliding groove; 6. Rotating part; 61. Rotating gear; 62. Driving gear; 63. Driving motor; 7. Abutment ring. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] The present application embodiment discloses a pin-type cold feed extruder. Figure 1 and Figure 2 A pin-type cold feed extruder includes a frame 1, a barrel 2, a plurality of pins 3, a plurality of mounting plates 4, an inspection assembly 5 and a rotating member 6. The barrel 2 is horizontally arranged, and the barrel 2 is connected to the frame 1 for rotation along the axial direction of the barrel 2. The rotating member 6 is used to drive the barrel 2 to rotate. The plurality of pins 3, the plurality of mounting plates 4 and the inspection assembly 5 are all arranged on the barrel 2.

[0032] refer to Figure 1 and Figure 3 The rotating member 6 includes a rotating gear 61, a driving gear 62 and a driving motor 63. The rotating gear 61 is coaxially arranged with the barrel 2. The rotating gear 61 is fixedly arranged on the outer wall of the barrel 2. The driving motor 63 is fixedly arranged on the frame 1. The side wall of the driving gear 62 is fixedly arranged on the output shaft of the driving motor 63. The driving gear 62 is engaged with the rotating gear 61.

[0033] refer to Figure 1 and Figure 3The maintenance assembly 5 includes a plurality of maintenance cylinders 51 and a mounting plate 52. The two mounting plates 52 are distributed along the length direction of the barrel 2. The mounting plates 52 are fixedly arranged on the outer wall of the barrel 2. The plurality of mounting plates 4 are evenly distributed along the circumference of the axis of the barrel 2. The length direction of the mounting plates 4 is parallel to the length direction of the barrel 2. The mounting plates 52 are provided with a plurality of sliding grooves 521. The extension direction of the plurality of sliding grooves 521 is parallel to the radial direction of the barrel 2. The plurality of sliding grooves 521 correspond to the plurality of mounting plates 4 one by one. The mounting plates 4 are slidingly connected to the sliding grooves. In 521, several maintenance cylinders 51 are divided into two cylinder groups, and the two cylinder groups correspond to two mounting plates 52 respectively. Several maintenance cylinders 51 in one cylinder group correspond one to one with several mounting plates 4 respectively. The cylinder body of the maintenance cylinder 51 is set on the mounting plate 52, and the piston rod of the maintenance cylinder 51 is fixedly set on the mounting plate 4. Two reinforcing ribs 41 are fixedly set on the side wall of the mounting plate 4 away from the barrel 2. The two reinforcing ribs 41 are distributed along the width direction of the mounting plate 4, and the length direction of the reinforcing ribs 41 is parallel to the length direction of the mounting plate 4.

[0034] refer to Figure 2 and Figure 3 , a plurality of countersunk holes 42 are provided on the side of the mounting plate 4 away from the barrel 2, and the plurality of countersunk holes 42 are evenly distributed along the length direction of the mounting plate 4, and a plurality of pins 3 correspond to the plurality of countersunk holes 42 one by one, and the head of the pin 3 passes through the countersunk hole 42, and the head of the pin 3 is located in the countersunk hole 42, and a plurality of limiting bolts 43 are provided on the mounting plate 4, and the plurality of limiting bolts 43 correspond to the plurality of countersunk holes 42 one by one, and the limiting bolts 43 are coaxially arranged with the countersunk hole 42, and the tail of the limiting bolt 43 is threadedly connected to the countersunk hole 42, and the head of the limiting bolt 43 abuts against the side wall of the mounting plate 4, and the limiting bolt 43 is a hexagon socket bolt, and a matching groove 44 is provided at the tail of the limiting bolt 43, and a limiting column 31 is provided on the head of the pin 3, and the limiting column 31 is engaged with the matching groove 44.

[0035] refer to Figure 2 and Figure 3 A plurality of matching holes 21 are provided on the barrel 2, and a plurality of pins 3 correspond to the matching holes 21 one by one. A sealing ring 22 is provided in the matching hole 21, and a guide slope 23 is provided on the inner side wall of the sealing ring 22 and the side of the sealing ring 22 facing the mounting plate 4. A plurality of abutment rings 7 are provided on the barrel 2, and the plurality of abutment rings 7 correspond to the matching holes 21 one by one. The abutment rings 7 are coaxially arranged with the matching holes 21, and the abutment rings 7 are fixedly arranged on the outer wall of the barrel 2. The end surface of the abutment ring 7 facing away from the barrel 2 is used to abut the mounting plate 4.

[0036] The implementation principle of a pin-type cold feed extruder in an embodiment of the present application is as follows: when the pin 3 of the equipment needs regular maintenance or replacement, the staff starts the maintenance cylinder 51, the piston rod of the maintenance cylinder 51 retracts, and the mounting plate 4 moves in a direction away from the barrel 2. The mounting plate 4 pulls the pin 3 out of the barrel 2, and the staff can observe the status of the pin 3 to determine whether the pin 3 is damaged. During the inspection, the staff starts the rotating part 6, and the rotating part 6 can drive the barrel 2 to rotate, which is convenient for the staff to detect the pin 3 from different angles, and also convenient for observing positions that were originally inconvenient to observe.

[0037] When the pin 3 needs to be replaced, the staff can first unscrew the limiting bolt 43 from the countersunk hole 42, then remove the broken pin 3 from the countersunk hole 42, pass the tail of the new pin 3 through the countersunk hole 42, and then screw the limiting bolt 43 back into the countersunk hole 42, and engage the matching column of the pin 3 with the matching groove 44 of the limiting bolt 43 to complete the replacement of the pin 3. After the inspection is completed, the piston rod of the inspection cylinder 51 is extended so that the mounting plate 4 abuts against the abutment ring 7, so that the subsequent equipment can perform the rubber extrusion operation.

[0038] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A pin-type cold feed extruder, characterized in that: The invention comprises a frame (1), a barrel (2), a plurality of pins (3), a plurality of mounting plates (4) and an inspection assembly (5), wherein the barrel (2) is arranged on the frame (1), the mounting plates (4) are distributed along the axis of the barrel (2), the mounting plates (4) are slidably connected to the barrel (2) along the circumferential radial direction of the barrel (2), the pins (3) are distributed and arranged on the mounting plates (4) along the length direction of the barrel (2), and the inspection assembly (5) comprises a plurality of inspection cylinders (51), the plurality of inspection cylinders (51) correspond to the plurality of mounting plates (4) one by one, and the inspection cylinders (51) are used to drive the mounting plates (4) to move and allow the pins (3) to penetrate into the barrel (2).

2. A pin-type cold feed extruder according to claim 1, characterized in that: A limiting bolt (43) is provided on the mounting plate (4), a countersunk hole (42) is provided on the mounting plate (4), the pin (3) is located in the countersunk hole (42), the limiting bolt (43) is threadedly connected to the countersunk hole (42), and the limiting bolt (43) limits the movement of the pin (3).

3. A pin-type cold feed extruder according to claim 2, characterized in that: A limiting column (31) is provided on the side of the pin (3) facing away from the barrel (2), and a matching groove (44) is provided at the tail end of the limiting bolt (43), and the matching groove (44) is used to clamp the limiting column (31).

4. A pin-type cold feed extruder according to claim 1, characterized in that: The barrel (2) is provided with a plurality of abutment rings (7), which correspond one to one with the pins (3). The pins (3) pass through the abutment rings (7), and the abutment rings (7) are used to abut against the side wall of the mounting plate (4).

5. The pin-type cold feed extruder according to claim 1, characterized in that: The barrel (2) is rotatably connected to the frame (1). The frame (1) is further provided with a rotating member (6) for driving the barrel (2) to rotate. The rotating member (6) includes a rotating gear (61), a driving gear (62) and a driving motor (63). The rotating gear (61) is provided on the barrel (2). The driving gear (62) is rotatably connected to the frame (1). The driving gear (62) is meshed with the rotating gear (61). The driving motor (63) drives the driving gear (62) to rotate.

6. A pin-type cold feed extruder according to claim 1, characterized in that: The barrel (2) is provided with a sealing ring (22) for improving the sealing effect with the pin (3).

7. A pin-type cold feed extruder according to claim 6, characterized in that: The sealing ring (22) is provided with a guiding inclined surface (23) for facilitating the insertion of the pin (3).

8. The pin-type cold feed extruder according to claim 1, characterized in that: The mounting plate (4) is further provided with a reinforcing rib (41), and the length of the reinforcing rib (41) is parallel to the length direction of the barrel (2).

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