阅读说明：本技术 一种砂纸机尾料张紧装置 (sand paper machine tailing tensioning device ) 是由 韦金权 陈绍江 韦杰 王干琴 于 2019-09-29 设计创作，主要内容包括：本发明公开了一种砂纸机尾料张紧装置,包括驱动轴、轴连接口、气胀轴、压紧块、气缸外壳和压紧板,驱动轴的两端分别安装轴连接口,轴连接口之间安装气胀轴,轴连接口的上侧设有压紧块,气缸内腔中设有活动片,活动片的底部设有活塞杆,压紧块的内部安装压紧板,在驱动轴中心处安装气胀轴,将材料卷安装在气胀轴上,气胀轴转动时,将材料往前放,当材料卷变小时,重量减轻,气胀轴转动阻力变小,而转动太快会导致刹不住,材料会发生卷曲,利用压紧块控制气胀轴转动阻力大小,气缸内压力随卷径大小而变化,材料卷大时,气缸压力小,阻力小,材料卷小时,气缸压力大,使气胀轴转动阻力趋于恒定,保证了放料的准确性,有效降低放料的误差。(The invention discloses a sand paper machine tailing tensioning device, which comprises a driving shaft, shaft connecting ports, an inflatable shaft, a pressing block, a cylinder shell and a pressing plate, wherein the shaft connecting ports are respectively installed at two ends of the driving shaft, the inflatable shaft is installed between the shaft connecting ports, the pressing block is arranged on the upper side of the shaft connecting ports, a movable sheet is arranged in an inner cavity of a cylinder, a piston rod is arranged at the bottom of the movable sheet, the pressing plate is installed inside the pressing block, the inflatable shaft is installed at the center of the driving shaft, a material roll is installed on the inflatable shaft, when the inflatable shaft rotates, the material is placed forwards, when the material roll becomes small, the weight is reduced, the rotating resistance of the inflatable shaft becomes small, the material cannot be braked when the material roll becomes too fast, the material can be curled, the pressing block is used for controlling the rotating resistance of the inflatable shaft, the pressure in the cylinder changes along with the roll diameter, when the material roll is large, the cylinder pressure is small, the resistance is small, the cylinder pressure is large, the rotating.)

The tensioning device for the tailings of the sand paper machine comprises a driving shaft (1), a shaft connecting port (2), an air expansion shaft (3), a fixed block (4), a fixing bolt (5), a pressing block (6), a cylinder shell (7), a cylinder inner cavity (8), a movable sheet (9), a clamping groove (10), a piston rod (11), an inner counter bore (12), an inner bolt (13), an outer counter bore (14) and a pressing plate (15), and is characterized in that two ends of the driving shaft (1) are respectively provided with the shaft connecting ports (2), the air expansion shaft (3) is installed between the shaft connecting ports (2), the lower side of the shaft connecting port (2) is provided with the fixed block (4), the outer counter bore (14) is arranged on the fixed block (4), the fixing bolt (5) is installed inside the outer counter bore (14), the pressing block (6) is arranged on the upper side of the shaft connecting port (2), the cylinder shell (7) is installed on the upper side of the pressing block (6), the cylinder inner cavity (8) is arranged inside the cylinder shell (7), the movable sheet (9) is provided with the piston rod (6), and the inner counter bore (12) is arranged at the bottom of the inner cylinder connecting groove (6).

2. The sand paper machine tailing tensioning device according to claim 1, characterized in that the tail end of the piston rod (11) is embedded in the pressing plate (15).

3. The sand machine tail tensioning device according to claim 1, characterized in that the top of the pressing block (6) is embedded in the embedding groove (10).

4. The sand paper machine tail tensioning device according to claim 1, characterized in that the outer diameter of the inflatable shaft (3) is 75 mm.

Technical Field

The invention relates to the technical field of sand paper machines, in particular to a tail material tensioning device of sand paper machines.

Background

The sand paper machine is also called as pneumatic grinder, belonging to pneumatic tool. Little and light, the equilibrium is high, it is not tired to use for a long time, use umbrella type gear mechanism, the rotational speed is steady, the noise is low, central authorities 'dust absorption, increase the water conservancy diversion function of patent, can exert powerful dust absorption ability and can not cause the dust to scatter, the special central authorities of water injection formula grinding machine play water design, can not cause to grind overheated, the overspeed device tensioner of prior art's abrasive paper tail, owing to use ordinary winding up roller, lead to when abrasive paper rolls up the installation, the pressure of pressure strip in the pressure strip to the abrasive paper roll is different, thereby lead to the pressure size in the unable invariable cylinder, thereby make the installation of abrasive paper roll have the error, influence tensioning work.

Disclosure of Invention

The invention aims to provide a tail material tensioning device of sand paper machines, wherein an inflatable shaft is arranged at the center of a driving shaft, a material roll is arranged on the inflatable shaft, when the inflatable shaft rotates, the material is placed forwards, when the material roll becomes smaller, the weight is reduced, the rotating resistance of the inflatable shaft becomes smaller, the material roll can not be braked and can be curled due to too fast rotation, the rotating resistance of the inflatable shaft is controlled by a pressing block, the pressure of an air cylinder changes along with the size of the roll diameter, when the material roll is large, the pressure of the air cylinder is small, the resistance is small, when the material roll is small, the pressure of the air cylinder is large, the rotating resistance of the inflatable shaft tends to be constant, the discharging accuracy is ensured, and the problems in the prior art can be solved.

In order to achieve the purpose, the invention provides the following technical scheme:

sand paper machine tails overspeed device tensioner, including drive shaft, axle connector, physiosis axle, fixed block, fixing bolt, compact heap, cylinder shell, cylinder inner chamber, activity piece, inlay card groove, piston rod, interior counter bore, interior screw bolt, outer counter bore and pressure strip, the installation axle connector is respectively installed at the both ends of drive shaft, install the physiosis axle between the axle connector, the downside of axle connector is equipped with the fixed block, be equipped with outer counter bore on the fixed block, the internally mounted fixing bolt of outer counter bore, the upside of axle connector is equipped with the compact heap, the upside installation cylinder shell of compact heap, the inside of cylinder shell is equipped with the cylinder inner chamber, be equipped with the activity piece in the cylinder inner chamber, the bottom of activity piece is equipped with the piston rod, the junction with the compact heap on the cylinder shell is equipped with inlay card groove, the inside of compact heap is equipped with interior counter bore, interior screw bolt of installation in the interior counter bore, the internally mounted pressure strip of compact heap.

Preferably, the tail end of the piston rod is clamped and embedded in the pressing plate.

Preferably, the top of the pressing block is embedded in the embedding groove in a clamping manner.

Preferably, the outer diameter of the air inflation shaft is 75 mm.

Compared with the prior art, the invention has the following beneficial effects:

according to the tail material tensioning device of the sand paper machine, the air expansion shaft is arranged at the center of the driving shaft, the material roll is arranged on the air expansion shaft, when the air expansion shaft rotates, the material is discharged forwards, when the material roll becomes smaller, the weight is reduced, the rotating resistance of the air expansion shaft becomes smaller, the material cannot be stopped due to too fast rotation, and the material can be curled.

Drawings

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic front view of the present invention;

fig. 3 is a side sectional structural schematic view of the present invention.

In the figure: 1. a drive shaft; 2. a shaft connection port; 3. an inflatable shaft; 4. a fixed block; 5. fixing the bolt; 6. a compression block; 7. a cylinder housing; 8. an inner cavity of the cylinder; 9. a movable plate; 10. a clamping groove; 11. a piston rod; 12. an inner counter bore; 13. an inner bolt; 14. an outer counter bore; 15. and a pressing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of of the present invention, rather than all embodiments.

Referring to fig. 1-3, kinds of sand paper machine tailing tensioning devices include a drive shaft 1, a shaft connection port 2, an air expansion shaft 3, fixed blocks 4, fixed bolts 5, a pressing block 6, a cylinder shell 7, a cylinder inner cavity 8, a movable sheet 9, a clamping groove 10, a piston rod 11, an inner counter bore 12, an inner bolt 13, an outer counter bore 14 and a pressing plate 15, wherein the two ends of the drive shaft 1 are respectively provided with the shaft connection ports 2, the air expansion shaft 3 is installed between the shaft connection ports 2, the outer diameter of the air expansion shaft 3 is 75mm, the lower side of the shaft connection port 2 is provided with the fixed block 4, the fixed block 4 is provided with the outer counter bore 14, the fixed bolt 5 is installed inside the outer counter bore 14, the upper side of the shaft connection port 2 is provided with the pressing block 6, the top of the pressing block 6 is clamped in the clamping groove 10, the cylinder shell 7 is installed on the upper side of the pressing block 6, the cylinder shell 7 is internally provided with the cylinder inner cavity 8, the movable sheet 9 is arranged in the cylinder inner cavity 8, the bottom of the movable sheet 9 is provided with the piston rod 11, the end of the piston rod 11 is clamped in the pressing plate 15, the connecting position of the cylinder shell 7 and the inner.

The difference between the invention and the prior art is as follows: the tensioning device of the tail part of the sand paper machine in the prior art has the advantages that due to the fact that a common winding roller is used, when a sand paper roll is installed, the pressure of a pressing plate 15 in a pressing block 6 on the sand paper roll is different, the pressure in an air cylinder cannot be constant, and therefore the installation of the sand paper roll has errors and the tensioning work is influenced, the tail material tensioning device of the sand paper machine is characterized in that an air expansion shaft 3 is installed in the center of a driving shaft 1, the material roll is installed on the air expansion shaft 3, when the air expansion shaft 3 rotates, the material is placed forwards, when the material roll becomes small, the weight is lightened, the rotating resistance of the air expansion shaft 3 becomes small, when the material roll becomes too fast, the material cannot be braked, and the material can be curled, in the device, the rotating resistance of the air expansion shaft 3 is controlled by the pressing block 6, the pressure in the air cylinder changes along with the size of the roll diameter, when the material roll becomes large, the rotation resistance of the inflatable shaft 3 tends to be constant, so that the accuracy of discharging is ensured.

In summary, the following steps: according to the sand paper machine tailing tensioning device, the air expansion shaft 3 is arranged in the center of the driving shaft 1, the material roll is arranged on the air expansion shaft 3, when the air expansion shaft 3 rotates, the material is placed forwards, when the material roll becomes small, the weight is reduced, the rotation resistance of the air expansion shaft 3 becomes small, the material cannot be stopped when the material roll rotates too fast, and the material can be curled.

It is noted that, herein, relational terms such as , second, and the like are used solely to distinguish entities or operations from another entities or operations without necessarily requiring or implying any actual such relationship or order between such entities or operations, further, the terms "comprise," "include," or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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