CN219054496U

CN219054496U - Rubber cutting device

Info

Publication number: CN219054496U
Application number: CN202223338767.4U
Authority: CN
Inventors: 张旭; 张志达; 郭和爱
Original assignee: Shijiazhuang Jianyi New Material Technology Co ltd
Current assignee: Shijiazhuang Jianyi New Material Technology Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-23
Anticipated expiration: 2032-12-12

Abstract

The utility model belongs to the technical field of rubber processing, and particularly relates to a rubber cutting device, which comprises a platform and a bracket above the platform, wherein the bracket comprises a cross rod and two side rods, a lifting device is arranged on the cross rod, the bottom of the lifting device is connected with a knife rest, and a blade is fixedly connected below the knife rest; the tool rest is also provided with a tensioning device, the tensioning device comprises a hinging seat and a connecting frame, the hinging seat and the connecting frame are arranged on two sides of the tool rest, the connecting frame comprises a hinging shaft, a pressing rod and a connecting rod for connecting the hinging shaft and the pressing rod, the hinging shaft is arranged in the hinging seat, the connecting frame has the degree of freedom of rotating around the hinging shaft, and the hinging seat is provided with a limiting groove for limiting the rotating angle of the connecting rod; the inner side of the side rod is provided with a guide groove, two ends of the tool rest are detachably connected with sliding blocks, and the sliding blocks are inserted into the guide groove and have the freedom degree of sliding up and down along the guide groove; through the cooperation of articulated seat and articulated shaft, the cooperation of spacing groove and connecting rod, the link can follow the whereabouts rotation certain angle of knife rest to compress tightly the rubber collagen piece, guarantee to cut the quality.

Description

Rubber cutting device

Technical Field

The utility model belongs to the technical field of rubber processing, and particularly relates to a rubber cutting device.

Background

Rubber is a high-elasticity polymer material with reversible deformation, in the rubber processing process, a rubber round face is usually pressed into a sheet, and then cut into small sheets, and the rubber sheet is easy to slip and move in the cutting process due to softer rubber texture and elasticity, so that the cutting face is uneven.

Therefore, there is a need for a rubber cutting device that can press the rubber sheet during cutting to flatten the cut surface of the rubber.

Disclosure of Invention

Aiming at the problem of slipping and moving of rubber in the cutting process, the utility model provides a rubber cutting device, which can enable a tensioning device to press rubber sheets along with falling of a blade and place the rubber sheets to slip.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a rubber cutting device, includes the support of platform and platform top, and the key is: the support comprises a cross rod and two side rods, a lifting device is arranged on the cross rod, the bottom of the lifting device is connected with a knife rest, and a blade is fixedly connected below the knife rest; the tool rest is also provided with a tensioning device, the tensioning device comprises hinge seats and a connecting frame, the hinge seats and the connecting frame are arranged on two sides of the tool rest, the connecting frame comprises a hinge shaft, a pressing rod and a connecting rod for connecting the hinge shafts, the hinge shaft is arranged in the hinge seats, the connecting frame has the degree of freedom of rotating around the hinge shaft, and the hinge seats are provided with limiting grooves for limiting the rotating angle of the connecting rod; the guide grooves are formed in the inner sides of the side rods, the two ends of the tool rest are detachably connected with sliding blocks, and the sliding blocks are inserted into the guide grooves and have the degree of freedom of sliding up and down along the guide grooves.

The hinge seat and the hinge shaft are matched to enable the connecting frame to rotate, and the limit groove and the connecting rod are matched to limit the rotating angle of the connecting frame, so that the connecting frame of the tensioning device can compress the rubber sheet in the falling process of the following blade, and cutting is smoothly carried out; specifically, under elevating gear's drive, link and blade fall together, when the hold-down bar contacted the rubber collagen piece, because elevating gear decurrent drive force for the articulated shaft of link is rotatory, because the restriction of spacing groove, the connecting rod outwards rotates, the hold-down bar promotes the rubber collagen piece to the blade outside, this thrust direction is unanimous with the connecting rod, it is downward power to the rubber collagen piece to incline, decompose and look at decurrent pressure and outside thrust, thereby make rubber collagen piece tensioning, the in-process blade whereabouts cuts off cast-in-situ former piece, the rubber former piece is tensioning not slided under the effect of the hold-down bar of knife rest both sides, thereby obtain the rubber piece that cut and plane was even.

Preferably, the outside of the pressing rod is sleeved with a sleeve. According to the difference in all aspects such as rubber thickness, elasticity of processing, select the sleeve of equidimension, material to cooperate the use, to the former piece of rubber of different thickness, adopt the sleeve of different specifications, can change the link differently, the suitability is stronger.

Preferably, the platform is provided with a knife slot, the knife slot is arranged below the blade, and a collecting slot is arranged below the knife slot. Rubber scraps can appear in the process of cutting the rubber sheets by the blade, and the collecting tank collects the rubber scraps, so that the pollution to the environment is reduced.

Preferably, the lifting device is a hydraulic cylinder, a pneumatic cylinder or a spiral lifting device.

Preferably, a blade mounting groove is formed below the tool rest, and the blade is clamped and mounted in the blade mounting groove. The shape of the blade mounting groove is matched with the shape of the top end of the blade, the blade is inserted from the side face of the cutter frame, the blade is limited by the blade mounting groove and can not rotate to keep straight line cutting, and the blade mounting groove are matched, installed and detached simply and conveniently, and are convenient to replace.

The utility model has the beneficial effects that: through set up overspeed device tensioner in the knife rest both sides to through articulated seat and articulated shaft cooperation, the cooperation of spacing groove and connecting rod, the link can follow the whereabouts rotation certain angle of knife rest, thereby compress tightly the rubber collagen piece, guarantee to cut the quality, overspeed device tensioner compresses tightly the rubber collagen piece along with the whereabouts of knife rest is automatic, does not need extra operation.

Drawings

FIG. 1 is a schematic view of a rubber cutting device according to an embodiment;

FIG. 2 is a schematic view of a structure of a rubber cutting device according to an embodiment without falling down;

FIG. 3 is a schematic cross-sectional view of an embodiment in which the blade of the rubber cutting device is not dropped;

FIG. 4 is a schematic view showing a structure of a blade of the rubber cutting device in an embodiment;

FIG. 5 is a schematic cross-sectional view of a blade of the rubber cutting device in an embodiment;

FIG. 6 is a partially enlarged view of a portion A of the rubber cutting device in the embodiment;

FIG. 7 is a schematic view showing an axial structure of a rubber cutter without a blade of a platform falling in an embodiment;

FIG. 8 is a schematic view showing an axial structure of a rubber cutter without showing a falling blade of a stage in the embodiment;

in the figure: 1 represents a platform; 101 represents a cutter groove; 2 represents a bracket; 201 represents a cross bar; 202 represents side bars; 203 represents a guide groove; 3 represents a lifting device; 4 represents a tool rest; 401 denotes a blade mounting groove; 402 represents a hinge seat; 403 represents a slider; 404 represents a limit groove; 5 represents a blade; 6 represents a connecting frame; 601 represents a hinge axis; 602 represents a connecting rod; 603 represents a hold-down bar; 7 represents a sleeve; 8 represents a collection tank.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

Specific embodiments are shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8, and a rubber cutting device, which comprises a platform 1 and a bracket 2 above the platform 1, and is characterized in that: the bracket 2 comprises a cross bar 201 and two side bars 202, a lifting device 3 is arranged on the cross bar 201, the bottom of the lifting device 3 is connected with a knife rest 4, and a blade 5 is fixedly connected below the knife rest 4; the tool rest 4 is also provided with a tensioning device, the tensioning device comprises a hinge seat 402 and a connecting frame 6 which are arranged at two sides of the tool rest 4, the connecting frame 6 comprises a hinge shaft 601, a pressing rod 603 and a connecting rod 602 for connecting the hinge shaft 601 and the pressing rod 603, the hinge shaft 601 is arranged in the hinge seat 402, the connecting frame 6 has the degree of freedom of rotating around the hinge shaft 601, and the hinge seat 402 is provided with a limiting groove 404 for limiting the rotating angle of the connecting rod 602; the side bar 202 is provided with a guide groove 203 on the inner side, and the two ends of the tool rest 4 are detachably connected with a slide block 403, and the slide block 403 is inserted into the guide groove 203 and has the freedom of sliding up and down along the guide groove 203.

The hinge seat 402 and the hinge shaft 601 cooperate to enable the connecting frame 6 to rotate, the limiting groove 404 can limit the rotating angle of the connecting rod 602 so as to limit the rotating angle of the connecting frame 6, the cross section of the limiting groove 404 is in a right trapezoid shape, one side, close to the blade 5, of the connecting rod 602 is a right-angle side, when the oblique sides are overlapped, the rotating angle of the oblique sides of the limiting groove 404 is the maximum rotating angle of the connecting rod 602, the angle of the oblique sides of the limiting groove 404 is calculated according to actual conditions, and when the connecting rod 602 rotates to the maximum angle, the connecting rod 602 is the lowest descending point of the lifting device 3; the arrangement makes the connecting frame 6 of the tensioning device capable of pressing the rubber sheet in the falling process of the following blade 5 and pushing the rubber sheet outwards to tension the rubber sheet, so that cutting is smoothly carried out.

As shown in fig. 6, 7 and 8, the sleeve 7 is sleeved outside the pressing rod 603. The sleeve 7 is according to the actual required different specifications of selection, and the former piece of rubber of processing is comparatively smooth, then the comparatively rough sleeve 7 of surface is selected, and the former piece roughness of rubber of processing is higher, then does not have the requirement to sleeve 7 surface.

As shown in fig. 1, a knife slot 101 is formed on the platform 1, the knife slot 101 is arranged below the blade 5, and a collecting slot 8 is arranged below the knife slot 101. The collecting tank 8 can collect rubber scraps produced by a machining process worker, and the cleaning difficulty is reduced.

The lifting device 3 is a hydraulic cylinder, a pneumatic cylinder or a spiral lifting device, a blade mounting groove 401 is formed below the tool rest 4, and the blade 5 is clamped and mounted in the blade mounting groove 401. The shape of the blade mounting groove 401 is matched with the shape of the top end of the blade 5, the blade 5 is inserted from the side face of the cutter rest 4, the blade 5 is limited by the blade mounting groove 401 and cannot rotate to keep straight line cutting, so that the cutting is smooth, and the blade 5 and the blade mounting groove 401 are matched in a manner that the blade 5 is convenient to replace.

Working principle: when the tool rest 4 does not fall, the connecting frame 6 is naturally vertical due to gravity and is close to the right-angle edge of the limit groove 404; the rubber sheet is conveyed to a rubber cutting device through a preposition procedure, and a part needing cutting is positioned below the blade 5; the tool rest 4 descends under the action of the lifting device 3, the sleeve 7 on the outer side of the pressing rod 603 firstly contacts the rubber sheet, the connecting frame 6 downwards presses the rubber sheet under the action of downward pressure of the lifting device 3, the hinge shaft 601 rotates in the hinge support 402, the connecting rod 602 follows the hinge shaft 601 to rotate towards the outer side of the blade 5 until the connecting rod 602 is limited and stopped by the limiting groove 404 when contacting with the bevel edge of the limiting groove 404, the pressing rod 603 is simultaneously driven to downwards and outwards push the rubber sheet in the process, the tensioning devices on the two sides of the blade 5 are all carried out in this way, so that the rubber sheet is stressed by the pulling force on the two sides and the downward pressure, the rubber sheet is tensioned, and the blade 5 falls down to cut off the rubber sheet in the process; after cutting off, the lifting device 3 drives the tool rest 4 to ascend, the connecting frame 6 is restored to a natural vertical state under the action of gravity, and the next cutting is ready to be repeated.

It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.

Claims

1. The utility model provides a rubber cutting device, includes support (2) of platform (1) and platform (1) top, its characterized in that: the support (2) comprises a cross rod (201) and two side rods (202), a lifting device (3) is arranged on the cross rod (201), a knife rest (4) is connected to the bottom of the lifting device (3), and a blade (5) is fixedly connected to the lower portion of the knife rest (4); the novel tool rest is characterized in that a tensioning device is further arranged on the tool rest (4), the tensioning device comprises hinge seats (402) and a connecting frame (6) which are arranged on two sides of the tool rest (4), the connecting frame (6) comprises a hinge shaft (601), a pressing rod (603) and a connecting rod (602) for connecting the hinge shaft and the pressing rod, the hinge shaft (601) is arranged in the hinge seat (402), the connecting frame (6) has a degree of freedom for rotating around the hinge shaft (601), and a limiting groove (404) for limiting the rotation angle of the connecting rod (602) is formed in the hinge seat (402); the guide grooves (203) are formed in the inner sides of the side rods (202), the sliding blocks (403) are detachably connected to the two ends of the tool rest (4), and the sliding blocks (403) are inserted into the guide grooves (203) and have the freedom degree of sliding up and down along the guide grooves (203).

2. A rubber cutting device according to claim 1, wherein: the outside of the pressing rod (603) is sleeved with a sleeve (7).

3. A rubber cutting device according to claim 1, wherein: the utility model discloses a knife rest structure of a knife rest, including platform (1) and knife rest, offered knife rest (101) on platform (1), knife rest (101) set up in blade (5) below, knife rest (101) below is provided with collecting vat (8).

4. A rubber cutting device according to claim 1, wherein: the lifting device (3) is a hydraulic cylinder, a pneumatic cylinder or a spiral lifting device.

5. A rubber cutting device according to claim 1, wherein: the blade mounting groove (401) is formed in the lower portion of the blade rest (4), and the blade (5) is clamped and mounted in the blade mounting groove (401).