PP raw material cutting device

Abstract

The utility model relates to raw material cutting technical field especially for a kind of PP raw material cutting equipment, including raw material discharge pipe, raw material discharge pipe outside symmetry is equipped with with raw material discharge pipe outside close half open ring, the half open ring both ends are fixedly connected with mounting hole plate, the inside of mounting hole plate is equipped with fixed bolt, in the utility model, by being set up half open ring, mounting hole plate, fixed bolt, fixed nut, connecting rod, threaded head, mounting nut, slip ring and fixed rod, when installing device, connecting rod and threaded head are inserted into the inside of slip ring in both ends of fixed rod, subsequently, half open ring is sleeved in raw material discharge pipe outside, fixed bolt is inserted into the inside of mounting hole plate and fixed nut is screwed in the outside of fixed bolt, next step, mounting nut is screwed tightly threaded head outside, the installation of device can be completed, this design makes the installation of device convenient, and can adapt to most old-fashioned PP raw material extruder.

Description

Technical Field

[0001] This utility model relates to the field of raw material cutting technology, specifically a PP raw material cutting device. Background Technology

[0002] Polypropylene is a thermoplastic resin polymerized from propylene monomers. It has characteristics such as low density, high rigidity, strong chemical corrosion resistance, and long-term use at temperatures above 100°C. It is the world's second most widely used plastic. PP raw material cutting equipment is a key piece of equipment in the plastics processing field. It is used to cut heated and softened PP raw materials into specifications that meet production requirements and is widely used in industries such as injection molding, extrusion, granulation, and packaging.

[0003] Existing PP raw material cutting equipment is widely used, but some older PP raw material extruders are not equipped with PP raw material cutting equipment and still require manual cutting by workers, resulting in low work efficiency. Existing PP raw material cutting equipment usually cannot be directly installed on older PP raw material extruders. Therefore, a PP raw material cutting equipment is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a PP raw material cutting device to solve the problem mentioned in the background art that the existing equipment usually cannot be installed on old-fashioned PP raw material extruders.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A PP raw material cutting device includes a raw material discharge pipe. Symmetrically arranged semi-open rings, tightly fitting the outer side of the raw material discharge pipe, are provided on both ends of the semi-open rings. Fixing bolts are provided on the inner side of the mounting bolts, and fixing nuts are threaded onto the outer side of the fixing bolts. Symmetrically arranged connecting rods are fixedly connected to the outer side of the semi-open rings. A threaded head is fixedly connected to the end of each connecting rod away from the semi-open ring, and a mounting nut is threaded onto the outer side of the threaded head. Sliding rings are slidably connected to the outer side of the connecting rods. A vertically arranged fixing rod is fixedly connected between the two sliding rings. A driving assembly is installed at the top of the upper sliding ring. Pressure plates are symmetrically installed at the bottom of the driving assembly. Fixing blocks are fixedly connected to the bottom of the pressure plates. A horizontally arranged cutting blade is installed between the two fixing blocks.

[0007] Preferably, the drive assembly includes a fixed seat fixedly connected to the top of the slip ring located above, a push rod symmetrically arranged fixedly connected to the front side of the fixed seat, a horizontally arranged connecting seat fixedly connected to the front end of the push rod output shaft, and a vertically arranged pneumatic rod fixedly connected to the inner side of the connecting seat.

[0008] Preferably, the bottom end of the pneumatic rod is fixedly connected to the top end of the pressure plate, and the side of the cutting blade near the raw material discharge pipe is in close contact with the raw material discharge pipe.

[0009] Preferably, the connection between the cutting blade and the fixing block is a sliding connection. A plurality of horizontally arranged limiting rods are fixedly connected to the side of the cutting blade away from the raw material discharge pipe. A baffle is fixedly connected to the end of the limiting rod away from the cutting blade. A compression spring is provided on the outside of the limiting rod. A horizontally arranged fixing plate is fixedly connected to one end of the compression spring.

[0010] Preferably, the limiting rod passes through the fixing plate and is slidably connected to the fixing plate, the end of the compression spring away from the fixing plate is fixedly connected to the cutting blade, and the fixing plate is located between the two fixing blocks and is fixedly connected to the fixing blocks.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, by setting a semi-open ring, mounting hole plate, fixing bolt, fixing nut, connecting rod, threaded head, mounting nut, slip ring and fixing rod, when installing the device, the connecting rod and threaded head are inserted into the inner side of the slip ring at both ends of the fixing rod, then the semi-open ring is put on the outside of the raw material discharge pipe, the fixing bolt is inserted into the inner side of the mounting hole plate and the fixing nut is screwed on the outside of the fixing bolt, and the next step is to tighten the mounting nut on the outside of the threaded head to complete the installation of the device. This design makes the installation of the device convenient and can be adapted to most old-fashioned PP raw material extruders;

[0013] 2. In this utility model, through the configured drive assembly, fixed base, push rod, connecting base, pneumatic rod, pressure plate, fixed block, cutting blade, limit rod, baffle, clamping spring, and fixed plate, when using the device, the push rod and pneumatic rod are activated, causing the clamping spring to be compressed until the side of the cutting blade near the raw material discharge pipe is in close contact with the raw material discharge pipe. The next step is to activate the pneumatic rod, and the output shaft of the pneumatic rod extends to drive the cutting blade to move downward, thereby cutting the PP raw material. This process is repeated to continuously cut the PP raw material. This design makes the cutting efficiency of PP raw material high and can avoid the cutting blade from contacting the PP raw material when resetting. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a partial disassembly diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the semi-open-loop mounting structure of this utility model;

[0017] Figure 4This is a schematic diagram of the pneumatic rod connecting component of this utility model;

[0018] Figure 5 This is a schematic diagram of the connecting component of the cutting blade of this utility model.

[0019] In the diagram: 1. Raw material discharge pipe; 2. Semi-open ring; 3. Mounting orifice plate; 4. Fixing bolt; 5. Fixing nut; 6. Connecting rod; 7. Threaded head; 8. Mounting nut; 9. Slip ring; 10. Fixing rod; 11. Drive assembly; 111. Fixing seat; 112. Push rod; 113. Connecting seat; 114. Pneumatic rod; 12. Pressure plate; 13. Fixing block; 14. Cutting knife; 15. Limiting rod; 16. Baffle; 17. Compression spring; 18. Fixing plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0022] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0023] Please see Figure 1-5 This utility model provides a technical solution:

[0024] A PP raw material cutting device includes a raw material discharge pipe 1. Symmetrically arranged semi-open rings 2 are provided on the outer side of the raw material discharge pipe 1, tightly fitting against its outer side. Mounting plates 3 are fixedly connected to both ends of the semi-open rings 2. Fixing bolts 4 are provided on the inner side of the mounting plates 3, and fixing nuts 5 are threadedly connected to the outer side of the fixing bolts 4. Symmetrically arranged connecting rods 6 are fixedly connected to the outer side of the semi-open rings 2. A threaded head 7 is fixedly connected to the end of the connecting rod 6 away from the semi-open rings 2, and a mounting nut 8 is threadedly connected to the outer side of the threaded head 7. Sliding rings 9 are slidably connected to the outer side of the connecting rods 6. A vertically arranged fixing rod 10 is fixedly connected between the two sliding rings 9. A drive assembly 11 is installed at the top of the upper sliding ring 9. A pressure plate 12 is symmetrically installed at the bottom of the drive assembly 11. A fixing block 13 is fixedly connected to the bottom end of the pressure plate 12. A horizontally arranged cutting blade 14 is installed between the two fixing blocks 13. The drive assembly 11 includes a fixing seat 111 fixedly connected to the top of the upper sliding ring 9. The fixing seat 111 has a front... A push rod 112 is symmetrically arranged and fixedly connected to the side. A horizontally arranged connecting seat 113 is fixedly connected to the front end of the output shaft of the push rod 112. A vertically arranged pneumatic rod 114 is fixedly connected to the inner side of the connecting seat 113. The bottom end of the pneumatic rod 114 is fixedly connected to the top end of the pressure plate 12. The side of the cutting knife 14 near the raw material discharge pipe 1 is tightly fitted with the raw material discharge pipe 1. The device is installed by using a semi-open ring 2, a mounting hole plate 3, a fixing bolt 4, a fixing nut 5, a connecting rod 6, a threaded head 7, a mounting nut 8, a slip ring 9, and a fixing rod 10. When installing the device, the connecting rod 6 and the threaded head 7 are inserted into the inner side of the slip ring 9 at both ends of the fixing rod 10. Then, the semi-open ring 2 is put on the outer side of the raw material discharge pipe 1. The fixing bolt 4 is inserted into the inner side of the mounting hole plate 3 and the fixing nut 5 is screwed on the outer side of the fixing bolt 4. The next step is to tighten the mounting nut 8 on the outer side of the threaded head 7 to complete the installation of the device. This design makes the installation of the device convenient and can be adapted to most old-fashioned PP raw material extruders.

[0025] The connection between the cutting blade 14 and the fixing block 13 is a sliding connection. Multiple horizontally arranged limiting rods 15 are fixedly connected to the side of the cutting blade 14 away from the raw material discharge pipe 1. A baffle 16 is fixedly connected to the end of each limiting rod 15 away from the cutting blade 14. A compression spring 17 is provided on the outside of the limiting rod 15. A horizontally arranged fixing plate 18 is fixedly connected to one end of the compression spring 17. The limiting rod 15 passes through the fixing plate 18 and is slidably connected to it. The end of the compression spring 17 away from the fixing plate 18 is fixedly connected to the cutting blade 14. The fixing plate 18 is located between two fixing blocks 13 and is fixedly connected to them. The connection is achieved through the driving assembly 11, the fixing seat 111, and the push rod. 112, Connecting seat 113, Pneumatic rod 114, Pressure plate 12, Fixing block 13, Cutting knife 14, Limiting rod 15, Baffle 16, Compression spring 17, and Fixing plate 18. When using the device, start the push rod 112 and pneumatic rod 114 to compress the compression spring 17 until the side of the cutting knife 14 near the raw material discharge pipe 1 is in close contact with the raw material discharge pipe 1. Next, start the pneumatic rod 114. The output shaft of the pneumatic rod 114 extends and drives the cutting knife 14 to move downward to cut the PP raw material. Repeat this process to continuously cut the PP raw material. This design makes the cutting efficiency of PP raw material high and can avoid the cutting knife 14 from contacting the PP raw material when resetting.

[0026] Workflow: When the device is needed, first install it on the raw material discharge pipe 1. Insert the connecting rod 6 and threaded head 7 into the inner side of the slip rings 9 at both ends of the fixing rod 10. Then, put the semi-open ring 2 on the outside of the raw material discharge pipe 1. Insert the fixing bolt 4 into the inner side of the mounting plate 3 and tighten the fixing nut 5 on the outside of the fixing bolt 4, so that the inner side of the semi-open ring 2 is tightly fitted with the outside of the raw material discharge pipe 1. Next, tighten the mounting nut 8 on the outside of the threaded head 7 to complete the installation of the device. When using the device, PP raw material is discharged through the raw material discharge pipe 1. At this time, the push rod 112 on the fixing seat 111 and the pneumatic rod 114 on the connecting seat 113 can be activated. The output shaft of the push rod 112 moves, driving the connecting seat 113 and the pneumatic rod 114 to move. The output shaft of the pneumatic rod 114 moves, driving the cutting blade 14 to the top edge of the raw material discharge pipe 1. Then adjust the push rod 112 to make The push rod 112 output shaft moves, driving the cutting blade 14 to move. When the cutting blade 14 contacts the top edge of the raw material discharge pipe 1, the limiting rod 15 on one side of the baffle 16 slides inside the fixed plate 18, and the fixing block 13 at the bottom of the pressure plate 12 slides outside the cutting blade 14. The compression spring 17 is compressed until the side of the cutting blade 14 close to the raw material discharge pipe 1 is tightly attached to the raw material discharge pipe 1. The next step is to start the pneumatic rod 114. The output shaft of the pneumatic rod 114 extends and drives the cutting blade 14 to move downward, thereby cutting the PP raw material. This process is repeated to continuously cut the PP raw material. The design of the drive assembly 11 and its connecting components makes the cutting efficiency of PP raw material high and can avoid the cutting blade 14 from contacting the PP raw material when resetting. The design of the semi-open ring 2 and its connecting components makes the device easy to install and can be adapted to most old-fashioned PP raw material extruders.

[0027] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PP raw material cutting device, comprising a raw material discharge pipe (1), characterized in that: The raw material discharge pipe (1) is symmetrically provided with semi-open rings (2) that fit tightly against the outside of the raw material discharge pipe (1). Mounting plates (3) are fixedly connected to both ends of the semi-open rings (2). Fixing bolts (4) are provided on the inner side of the mounting plates (3). Fixing nuts (5) are threaded onto the outer side of the fixing bolts (4). Symmetrically arranged connecting rods (6) are fixedly connected to the outer side of the semi-open rings (2). A threaded head (7) is fixedly connected to the end of the connecting rod (6) away from the semi-open rings (2). (7) An installation nut (8) is threaded on the outside. A slip ring (9) is slidably connected to the outside of the connecting rod (6). A vertically arranged fixing rod (10) is fixedly connected between the two slip rings (9). A drive assembly (11) is installed at the top of the upper slip ring (9). A pressure plate (12) is symmetrically installed at the bottom of the drive assembly (11). A fixing block (13) is fixedly connected to the bottom of the pressure plate (12). A horizontally arranged cutting knife (14) is installed between the two fixing blocks (13).

2. The PP raw material cutting device according to claim 1, characterized in that: The drive assembly (11) includes a fixed seat (111) fixedly connected to the top of the slip ring (9) located above. A push rod (112) is fixedly connected to the front side of the fixed seat (111) and is arranged symmetrically. A horizontally arranged connecting seat (113) is fixedly connected to the front end of the output shaft of the push rod (112). A vertically arranged pneumatic rod (114) is fixedly connected to the inner side of the connecting seat (113).

3. The PP raw material cutting device according to claim 2, characterized in that: The bottom end of the pneumatic rod (114) is fixedly connected to the top end of the pressure plate (12), and the side of the cutting blade (14) near the raw material discharge pipe (1) is closely fitted with the raw material discharge pipe (1).

4. The PP raw material cutting device according to claim 3, characterized in that: The connection between the cutting blade (14) and the fixing block (13) is a sliding connection. A plurality of horizontally arranged limiting rods (15) are fixedly connected to the side of the cutting blade (14) away from the raw material discharge pipe (1). A baffle (16) is fixedly connected to the end of the limiting rod (15) away from the cutting blade (14). A compression spring (17) is provided on the outside of the limiting rod (15). A horizontally arranged fixing plate (18) is fixedly connected to one end of the compression spring (17).

5. The PP raw material cutting device according to claim 4, characterized in that: The limiting rod (15) passes through the fixing plate (18) and is slidably connected to the fixing plate (18). The end of the compression spring (17) away from the fixing plate (18) is fixedly connected to the cutting knife (14). The fixing plate (18) is located between two fixing blocks (13) and is fixedly connected to the fixing blocks (13).

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