Polypropylene fiber material cutting machine

Abstract

The utility model is suitable for the technical field of cutting machines, and provides a polypropylene fiber material cutting machine which comprises a base, a cutting seat and a cutting mechanism. The cutting seat is fixed on the base, and the cutting mechanism is arranged on the cutting seat; the cutting mechanism comprises a linkage unit and an abutting unit. The linkage unit comprises a guide rod, a butt joint base, a cutting knife, a driving plate and a linkage plate. According to the scheme, a driving plate in a linkage unit in the cutting mechanism drives a linkage plate to do pendulum motion, then a butt joint base is driven to slide on a guide rod in a reciprocating mode, the driving plate can drive a cutting knife to do cutting operation twice in one-time reciprocating motion through pendulum motion, the motion frequency of an air cylinder is greatly reduced, and the cutting efficiency is improved. And therefore, the service life of the air cylinder is effectively prolonged, unnecessary economic losses are avoided, the abutting unit firmly abuts against the polypropylene fiber material during cutting, and cutting deviation caused by displacement of the polypropylene fiber material is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting machines, in particular to a polypropylene fiber material cutting machine. Background Art

[0002] Polypropylene fiber is a synthetic fiber spun from isotactic polypropylene obtained by polymerization of propylene. Its trade name in my country is polypropylene. Polypropylene fiber can be divided into long fiber, short fiber, spunbond non-woven fabric, meltblown non-woven fabric, etc. Long polypropylene fiber can be used to produce clothing and decoration and some industrial filament products. The production process of short fiber mostly adopts a porous, low-speed, continuous process, that is, a short spinning process. However, no matter what the purpose is, a cutting machine is required to cut the polypropylene fiber during production.

[0003] Although there are many kinds of cutting and trimming machines at present, there are still some problems. For example, most of the current cutting and trimming machines use a power mechanism (such as a cylinder) to drive the cutting knife to cut the polypropylene fiber. During the reciprocating movement of the cylinder, it can only drive the cutting knife to do a cutting operation once. Long-term cutting operations require frequent reciprocating movements of the cylinder, which can easily cause damage to the cylinder, thereby causing unnecessary economic losses. Utility Model Content

[0004] The utility model provides a polypropylene fiber material cutting and trimming machine, aiming to solve the problem that the current cylinder can only drive the cutting knife to do one cutting operation during one reciprocating motion, which causes the cylinder to be easily damaged.

[0005] The utility model is realized in this way: a polypropylene fiber material cutting and trimming machine comprises: a base, a cutting seat and a cutting mechanism;

[0006] The cutting seat is fixed on the base, and the cutting mechanism is arranged on the cutting seat;

[0007] The cutting mechanism comprises a linkage unit and an abutment unit;

[0008] The linkage unit comprises a guide rod, a docking seat, a cutting knife, an active plate and a linkage plate, wherein the guide rod is vertically fixed on the cutting seat and symmetrically arranged, the docking seat is slidably connected between two adjacent guide rods, the cutting knife is connected to the bottom of the docking seat, a transverse plate is fixed to the top of the guide rod, the active plate is rotatably connected to the transverse plate, one end of the linkage plate is rotatably connected to the active plate, and the other end is rotatably connected to the docking seat;

[0009] The abutment unit is slidably connected to the guide rod.

[0010] Preferably, the linkage unit further comprises a support frame and a cylinder, the support frame is vertically fixed on the horizontal plate at the top of the guide rod, the fixed part of the cylinder is rotatably connected to the support frame, and the telescopic part of the cylinder is rotatably connected to the active plate.

[0011] Preferably, the abutment unit comprises a supporting plate, a limiting rod and an abutment seat;

[0012] The support plate is slidably connected between two adjacent guide rods and is located between the docking seat and the cutting seat. The limit rod is fixed on the support plate and a through hole is penetrated on the docking seat. The limit rod passes through the through hole, and a chuck is provided on the top of the limit rod. The diameter of the chuck is larger than the through hole. The abutment seat is fixed on the support plate and a rectangular slot is penetrated on the abutment seat. The cutting knife passes through the rectangular slot.

[0013] Preferably, a return spring is sleeved on the guide rod, and the return spring is located between the docking seat and the supporting plate.

[0014] Preferably, sliding sleeves are fixed to both ends of the docking seat and the supporting plate, and the inner wall of the sliding sleeve is semi-embedded and rotatably connected with a ball, and the ball part is in contact with the guide rod.

[0015] Preferably, a protrusion is provided at the bottom of the docking seat, a screw hole is provided on the protrusion, and a screw is provided on the cutting knife, and the screw is detachably screwed and connected in the screw hole.

[0016] Preferably, the top of the cutting seat is provided with a cutting groove in an inwardly concave manner, the cutting groove and the cutting knife are located in the same plane, and the cutting groove is an inverted triangle structure.

[0017] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0018] In this solution, the active plate in the linkage unit in the cutting mechanism drives the linkage plate to perform pendulum motion, thereby driving the docking seat to slide back and forth on the guide rod. Through the pendulum motion, the active plate can drive the cutting knife to perform two cutting operations in one reciprocating motion, which greatly reduces the movement frequency of the cylinder, thereby effectively increasing the service life of the cylinder and avoiding unnecessary economic losses. At the same time as cutting, the abutment unit firmly holds the polypropylene fiber material to avoid displacement of the polypropylene fiber material and resulting in cutting deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the external overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the linkage unit structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the abutment unit structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the sliding sleeve connection structure of the utility model;

[0023] In the figure: 1. base; 2. cutting seat; 3. cutting mechanism; 31. guide rod; 32. docking seat; 33. cutting knife; 34. active plate; 35. linkage plate; 36. support frame; 37. cylinder; 38. supporting plate; 39. limit rod; 310. abutment seat; 311. return spring; 312. sliding sleeve; 313. ball bearing. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0025] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] The utility model provides a polypropylene fiber material cutting and trimming machine, such as Figure 1-4 As shown, it includes: a base 1, a cutting seat 2 and a cutting mechanism 3;

[0027] The cutting seat 2 is fixed on the base 1, and the cutting mechanism 3 is arranged on the cutting seat 2;

[0028] The cutting mechanism 3 includes a linkage unit and an abutment unit;

[0029] The linkage unit includes a guide rod 31, a docking seat 32, a cutting knife 33, an active plate 34 and a linkage plate 35. The guide rod 31 is vertically fixed on the cutting seat 2 and symmetrically arranged. The docking seat 32 is slidably connected between two adjacent guide rods 31. The cutting knife 33 is connected to the bottom of the docking seat 32. A horizontal plate is fixed on the top of the guide rod 31. The active plate 34 is rotatably connected to the horizontal plate. One end of the linkage plate 35 is rotatably connected to the active plate 34, and the other end is rotatably connected to the docking seat 32.

[0030] The abutment unit is slidably connected to the guide rod 31 .

[0031] It should be noted that, since most of the existing cutting and trimming machines use a power mechanism such as a cylinder to drive the cutting knife to cut the polypropylene fiber, and the cylinder can only drive the cutting knife to do a cutting operation once during a reciprocating movement, and long-term cutting operations require frequent reciprocating movements of the cylinder, which can easily cause damage to the cylinder and cause unnecessary economic losses. In order to solve this problem, a cutting mechanism 3 is provided in the present scheme, and the active plate 34 in the linkage unit of the cutting mechanism 3 drives the linkage plate 35 to do a pendulum motion, thereby driving the docking seat 32 to slide back and forth on the guide rod 31. Through the pendulum motion, the active plate 34 can drive the cutting knife 33 to do two cutting operations in one reciprocating motion, which greatly reduces the movement frequency of the cylinder 37, thereby effectively improving the service life of the cylinder 37 and avoiding unnecessary economic losses. At the same time as cutting, the abutment unit firmly abuts the polypropylene fiber material to avoid displacement of the polypropylene fiber material and cause cutting deviation.

[0032] Specifically, in this embodiment, this scheme mainly includes a base 1, a cutting seat 2 and a cutting mechanism 3. When in use, the active plate 34 is driven to be linked by the cylinder 37, and then the linkage plate 35 is driven to be linked by the active plate 34, and the linkage plate 35 drives the docking seat 32 to reciprocate on the guide rod 31, so that the cutting knife 33 can quickly cut the polypropylene fiber material on the cutting seat 2, and at the same time of cutting, the abutment unit firmly abuts the polypropylene fiber material to avoid displacement of the polypropylene fiber material and cause cutting deviation.

[0033] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the linkage unit also includes a support frame 36 and a cylinder 37. The support frame 36 is vertically fixed on the horizontal plate at the top of the guide rod 31. The fixed part of the cylinder 37 is rotatably connected to the support frame 36. The telescopic part of the cylinder 37 is rotatably connected to the active plate 34.

[0034] In this embodiment, the active plate 34 is driven to rapidly reciprocate by the extension and retraction of the extension portion of the cylinder 37 .

[0035] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the abutment unit includes a supporting plate 38, a limiting rod 39 and an abutment seat 310;

[0036] The supporting plate 38 is slidably connected between two adjacent guide rods 31 and is located between the docking seat 32 and the cutting seat 2. The limiting rod 39 is fixed on the supporting plate 38 and a through hole is penetrated on the docking seat 32. The limiting rod 39 passes through the through hole, and a chuck is provided on the top of the limiting rod 39. The diameter of the chuck is larger than the through hole. The abutment seat 310 is fixed on the supporting plate 38 and a rectangular slot is penetrated on the abutment seat 310. The cutting knife 33 passes through the rectangular slot.

[0037] In this embodiment, the polypropylene fiber material is firmly supported by the abutment seat 310 to prevent the polypropylene fiber material from being displaced and causing cutting deviation.

[0038] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a return spring 311 is sleeved on the guide rod 31 , and the return spring 311 is located between the docking seat 32 and the supporting plate 38 .

[0039] In this embodiment, the supporting plate 38 and the abutting seat 310 are elastically buffered by the elastic force of the return spring 311 .

[0040] In a further preferred embodiment of the present invention, Figure 1-4 As shown, sliding sleeves 312 are fixed to both ends of the docking seat 32 and the supporting plate 38 , and the inner wall of the sliding sleeve 312 is semi-embedded and rotatably connected with a ball 313 , and the ball 313 partly abuts against the guide rod 31 .

[0041] In this embodiment, the rolling of the balls 313 reduces the friction resistance between the docking seat 32 and the supporting plate 38 and the guide rod 31, thereby reducing wear.

[0042] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a protrusion is provided at the bottom of the docking seat 32, a screw hole is provided on the protrusion, and a screw is provided on the cutting knife 33, and the screw is detachably screwed and connected in the screw hole.

[0043] In this embodiment, the staff can quickly disassemble and replace the cutting blade 33 after it is damaged.

[0044] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the top of the cutting seat 2 is concavely provided with a cutting groove, the cutting groove and the cutting knife 33 are located in the same plane, and the cutting groove is an inverted triangle structure.

[0045] In this embodiment, the cutting knife 33 can quickly cut the polypropylene fiber material during cutting by cutting the inverted triangle structure in the cutting groove.

[0046] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0047] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0048] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0049] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A polypropylene fiber material cutting and trimming machine, characterized in that: include: A base (1), a cutting seat (2) and a cutting mechanism (3); The cutting seat (2) is fixed on the base (1), and the cutting mechanism (3) is arranged on the cutting seat (2); The cutting mechanism (3) comprises a linkage unit and an abutment unit; The linkage unit comprises a guide rod (31), a docking seat (32), a cutting knife (33), an active plate (34) and a linkage plate (35); the guide rod (31) is vertically fixed on the cutting seat (2) and symmetrically arranged; the docking seat (32) is slidably connected between two adjacent guide rods (31); the cutting knife (33) is connected to the bottom of the docking seat (32); a transverse plate is fixed to the top of the guide rod (31); the active plate (34) is rotatably connected to the transverse plate; one end of the linkage plate (35) is rotatably connected to the active plate (34) and the other end is rotatably connected to the docking seat (32); The abutment unit is slidably connected to the guide rod (31).

2. A polypropylene fiber material cutting and trimming machine as claimed in claim 1, characterized in that: The linkage unit further comprises a support frame (36) and a cylinder (37), wherein the support frame (36) is vertically fixed on a horizontal plate at the top of the guide rod (31), a fixed portion of the cylinder (37) is rotatably connected to the support frame (36), and a telescopic portion of the cylinder (37) is rotatably connected to the active plate (34).

3. A polypropylene fiber material cutting and trimming machine as claimed in claim 1, characterized in that: The abutment unit comprises a supporting plate (38), a limiting rod (39) and an abutment seat (310); The support plate (38) is slidably connected between two adjacent guide rods (31) and is located between the docking seat (32) and the cutting seat (2). The limiting rod (39) is fixed on the support plate (38) and a through hole is provided on the docking seat (32). The limiting rod (39) passes through the through hole, and a chuck is provided on the top of the limiting rod (39). The diameter of the chuck is larger than the through hole. The abutment seat (310) is fixed on the support plate (38) and a rectangular notch is provided on the abutment seat (310). The cutting knife (33) passes through the rectangular notch.

4. A polypropylene fiber material cutting and trimming machine as claimed in claim 3, characterized in that: The guide rod (31) is sleeved with a return spring (311), and the return spring (311) is located between the docking seat (32) and the supporting plate (38).

5. A polypropylene fiber material cutting and trimming machine as claimed in claim 4, characterized in that: Both ends of the docking seat (32) and the supporting plate (38) are fixed with sliding sleeves (312), the inner wall of the sliding sleeve (312) is semi-embedded and rotatably connected with a ball (313), and a portion of the ball (313) abuts against the guide rod (31).

6. A polypropylene fiber material cutting and trimming machine as claimed in claim 1, characterized in that: The bottom of the docking seat (32) is provided with a protrusion, and a screw hole is provided on the protrusion. The cutting knife (33) is provided with a screw, and the screw is detachably screwed and connected in the screw hole.

7. A polypropylene fiber material cutting and trimming machine as claimed in claim 1, characterized in that: The top of the cutting seat (2) is provided with a cutting groove in an inwardly concave manner, the cutting groove and the cutting knife (33) are located in the same plane, and the cutting groove has an inverted triangle structure.

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