CN213864533U - Rotating disc type paper roll unwinding mechanism capable of adjusting width - Google Patents

Abstract

A rotating disc type paper roll unwinding mechanism capable of adjusting the width comprises a left rotating disc and a right rotating disc which are coaxially arranged, wherein each rotating disc is provided with two plugs for inserting the end parts of a paper roll core cylinder, each plug is correspondingly provided with a transverse guide rail and a plug support, the transverse guide rails are fixedly arranged on the rotating discs and rotate along with the rotating discs, the plug supports can be transversely and slidably arranged on the transverse guide rails, and each plug is arranged on a corresponding plug support and transversely moves along with the plug support; each plug support is correspondingly and fixedly connected with a nut block, each nut block is provided with a screw hole, and an adjusting screw rod penetrates through each screw hole; the thread pitches of the left adjusting screw rod and the right adjusting screw rod corresponding to the two unreeling plugs in the same group are equal and the spiral directions are opposite, and the left adjusting screw rod and the right adjusting screw rod corresponding to the unreeling plugs in the same group are fixedly connected together by using the coupler to synchronously rotate. The utility model discloses can control the big scroll of rolling up footpath, small width at the in-process tension that unreels stably.

Description

Rotating disc type paper roll unwinding mechanism capable of adjusting width

Technical Field

The utility model belongs to the technical field of scroll unwinding equipment, concretely relates to carousel formula scroll unwinding mechanism that can adjust width.

Background

In order to avoid shutdown in the roll changing process of roll unreeling and ensure continuous operation of a production line, people design a rotary disc type roll unreeling device, two air expansion shafts are arranged between a left rotary disc and a right rotary disc of the rotary disc type roll unreeling device, and the two air expansion shafts are symmetrical about the center of the rotary discs. Every scroll all is equipped with the refill section of thick bamboo, every physiosis epaxial all can install the scroll (specifically physiosis axle inserts the refill section of thick bamboo of scroll and expands tightly), like this, two physiosis axles are as main unreeling axle and reserve unreeling axle in turn along with the rotation of carousel, and wherein main unreeling axle is located unreeling position, and main unreeling axle ceaselessly rotates and unwinds the scroll, and reserve unreeling axle is last to install reserve scroll and be in standby position, be in quiescent condition, realizes that two physiosis axles are responsible for releasing paper material in turn. After the paper material on the main unreeling shaft is completely released, the reel is changed, in the reel changing process, the turntable rotates 180 degrees, the original main unreeling shaft rotates to the standby position to become a new standby unreeling shaft, and the original standby unreeling shaft (including the paper roll thereon) rotates to the unreeling position to become a new main unreeling shaft.

Although the rotary disc type unwinding mechanism has appeared for many years, the existing rotary disc type unwinding mechanism has the following two disadvantages when applied to the paper roll with a large winding diameter:

firstly, because the transverse distance between the left rotary table and the right rotary table is fixed, paper rolls with different widths can only use the air inflation shafts with the same length, and therefore, the length of the air inflation shafts can only be designed to be larger; on the other hand, for the paper roll with large roll diameter and small width, because of heavy weight, when the paper roll is installed on the long air expansion shaft to rotate, the paper roll can only be installed at the local position in the middle of the air expansion shaft, the air expansion shaft is greatly subjected to bending deformation, the beating amplitude of the paper roll in the radial direction is large when the paper roll rotates, and the large-amplitude tension fluctuation is easily caused.

In the process of changing the roll, the length of a running route of the paper material is sharply increased in a short time due to the rotation of the rotary disc, and the tension of the paper material is severely changed, so that the paper material is easily torn or damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned shortcoming and provide a can adjust width's carousel formula scroll unwinding mechanism, it can control the scroll of big roll footpath, little width and unreel the in-process tension stably.

The purpose can be realized according to the following scheme: a turnplate type paper roll unwinding mechanism capable of adjusting the width comprises a left turnplate and a right turnplate which are coaxially arranged, wherein the extending direction of the central axis of the left turnplate and the central axis of the right turnplate is transverse; a turntable motor for driving the left and right turntables to synchronously rotate is also arranged;

each plug is correspondingly provided with a transverse guide rail and a plug support, the transverse guide rail is fixedly arranged on the turntable and rotates along with the turntable, the plug supports can be transversely and slidably arranged on the transverse guide rails, and each plug is arranged on a corresponding plug support and transversely moves along with the plug support; each plug support is correspondingly and fixedly connected with a nut block, each nut block is correspondingly provided with a screw hole, an adjusting screw rod correspondingly penetrates through each screw hole, the adjusting screw rod corresponding to the left plug is called a left adjusting screw rod, and the adjusting screw rod corresponding to the right plug is called a right adjusting screw rod; the thread pitches of the left adjusting screw rod and the right adjusting screw rod corresponding to the two unreeling plugs in the same group are equal and the spiral directions are opposite, the left adjusting screw rod and the right adjusting screw rod corresponding to the unreeling plugs in the same group are fixedly connected together by using a coupler to synchronously rotate, and a driving motor is matched with the left adjusting screw rod and the right adjusting screw rod corresponding to the unreeling plugs in each group.

A tension detection roller is arranged at the downstream of the main unreeling plug and is provided with a tension detector; a swing roller is arranged at the downstream of the tension detection roller, the swing roller is arranged on a swing frame, the swing frame is provided with a swing shaft, the swing frame is driven by an air cylinder to swing around the swing shaft, and the swing frame is also provided with a potentiometer; the tension detector, the potentiometer and the air cylinder are connected to the central controller.

The utility model has the advantages of it is following and effect:

one, the utility model discloses can adjust the transverse position of end cap according to the width convenient and fast ground of scroll, make the distance between left end cap and the right end cap just can the centre gripping scroll, make the distance between left end cap and the right end cap shortest as far as possible, reduce at a maximum extent and eliminate the scroll even and rotate the time along radial range of beating, and then keep tension stable.

And the thread pitches of the two adjusting screw rods corresponding to the two unreeling plugs in the same group are equal and opposite in direction, so that the two unreeling plugs in the same group can move transversely in an equidistant and opposite direction in the adjusting process, namely the transverse position of a middle point between the two unreeling plugs is kept fixed, and the position of an axial middle point of the paper roll is kept fixed.

Thirdly, the utility model discloses at the change of lap in-process, the rotation of carousel makes paper material working length sharply increase in the short time, then cylinder drive pendulum roller is around its rocker pendulum shaft swing, compensaties paper material working length from this and changes, and central controller passes through tension detector and detects paper material tension to through potentiometre control pendulum roller amplitude of oscillation, consequently avoid paper material tension to change acutely, further avoid paper material to tear or damage.

Drawings

Fig. 1 is a schematic side view of a projection structure according to an embodiment of the present invention.

FIG. 2 is a side view of the turntable, bulkhead, and bulkhead drive adjustment mechanism of FIG. 1.

Fig. 3 is a schematic view of a longitudinal projection of the structure shown in fig. 2.

Fig. 4 is a schematic top view of the structure shown in fig. 2.

Detailed Description

The rotating disc type paper roll unwinding mechanism capable of adjusting the width comprises a left rotating disc 1 and a right rotating disc 1 which are coaxially arranged, the central axes of the left rotating disc 1 and the right rotating disc 1 are transverse, two plugs are installed on the left rotating disc 1, two plugs are also installed on the right rotating disc 1, the plug installed on the left rotating disc is called a left plug, the plug installed on the right rotating disc is called a right plug, each left plug 21 is respectively paired with one right plug 22 to form a group of unwinding plugs, the two groups of unwinding plugs are symmetrically arranged about the central axis of the rotating disc 1, the unwinding plugs located at the unwinding position (the plugs located on the left side of the drawing in the figure 1 in the figure) are called main unwinding plugs, the other group of unwinding plugs are called standby unwinding plugs, and the two groups of unwinding plugs are used as main unwinding plugs and standby unwinding plugs in turn; a turntable motor for driving the left and right turntables 1 to synchronously rotate is also arranged; each plug is correspondingly provided with a transverse guide rail 3 and a plug support 4, the transverse guide rail 3 is fixedly arranged on the turntable 1 and rotates along with the turntable 1, the plug support 4 can be transversely and slidably arranged on the transverse guide rail 3, and each plug is arranged on a corresponding plug support 4 and transversely moves along with the plug support 4; each plug support 4 is correspondingly and fixedly connected with a nut block 5, each nut block 5 is correspondingly provided with a screw hole, and each screw hole is correspondingly penetrated with an adjusting screw rod, wherein the adjusting screw rod corresponding to the left plug 21 is called a left adjusting screw rod, and the adjusting screw rod corresponding to the right plug 22 is called a right adjusting screw rod; the thread pitches of the left adjusting screw rod 51 and the right adjusting screw rod 52 corresponding to the two unreeling plugs in the same group are equal and the spiral directions are opposite, the left adjusting screw rod 51 and the right adjusting screw rod 52 corresponding to the unreeling plugs in the same group are fixedly connected together by a coupler 53 to synchronously rotate, and the left adjusting screw rod 51 and the right adjusting screw rod 52 corresponding to the unreeling plugs in the same group are matched with a driving motor 54.

As shown in fig. 1, a tension detection roller 6 is further arranged at the downstream of the main unreeling plug, and the tension detection roller 6 is provided with a tension detector; a swing roller 7 is arranged at the downstream of the tension detection roller 6, the swing roller 7 is arranged on a swing frame 9, the swing frame 9 is provided with a swing shaft 90, the swing frame 9 is driven by an air cylinder 91 to swing around the swing shaft 90, and the swing frame 9 is also provided with a potentiometer; the tension detector, the potentiometer and the air cylinder are connected to the central controller.

In the above embodiment, the paper roll 80 on the main unwinding plug (the set of unwinding plugs on the left side of the drawing in fig. 1) continuously rotates to release the paper material 8, and as shown in fig. 1, the other set of unwinding plugs (the set of unwinding plugs on the right side of the drawing in fig. 1) serves as a standby unwinding plug.

In addition, when the transverse distance between the left plug 21 and the right plug 22 in the same group needs to be adjusted, the motor 54 can drive the right adjusting screw 52, the coupler 53 and the left adjusting screw 51 to synchronously rotate, so that the left plug 21 and the right plug 22 perform transverse movement in an equal distance and opposite directions, and the transverse position of the middle point between the two unreeling plugs is kept fixed in the transverse movement process.

Claims (2)

1. The utility model provides a can adjust carousel formula scroll unwinding mechanism of width, includes two carousels about coaxial arrangement, the central axis extending direction of controlling two carousels is horizontal its characterized in that: two plugs for inserting the end parts of the paper roll paper core barrel are arranged on the left turntable, two plugs for inserting the end parts of the paper roll paper core barrel are also arranged on the right turntable, the plug arranged on the left turntable is called a left plug, the plug arranged on the right turntable is called a right plug, and each left plug is respectively matched with one right plug to form a group of unreeling plugs; the two groups of unwinding plugs are symmetrically arranged around the central axis of the turntable, wherein the unwinding plug at the unwinding position is called a main unwinding plug, the other group of plugs is called a standby unwinding plug, and the two groups of unwinding plugs are used as the main unwinding plug and the standby unwinding plug in turn; a turntable motor for driving the left and right turntables to synchronously rotate is also arranged; each plug is correspondingly provided with a transverse guide rail and a plug support, the transverse guide rail is fixedly arranged on the turntable and rotates along with the turntable, the plug supports can be transversely and slidably arranged on the transverse guide rails, and each plug is arranged on a corresponding plug support and transversely moves along with the plug support; each plug support is correspondingly and fixedly connected with a nut block, each nut block is correspondingly provided with a screw hole, an adjusting screw rod correspondingly penetrates through each screw hole, the adjusting screw rod corresponding to the left plug is called a left adjusting screw rod, and the adjusting screw rod corresponding to the right plug is called a right adjusting screw rod; the thread pitches of the left adjusting screw rod and the right adjusting screw rod corresponding to the two unreeling plugs in the same group are equal and the spiral directions are opposite, the left adjusting screw rod and the right adjusting screw rod corresponding to the unreeling plugs in the same group are fixedly connected together by using a coupler to synchronously rotate, and a driving motor is matched with the left adjusting screw rod and the right adjusting screw rod corresponding to the unreeling plugs in each group.

2. The adjustable-width rotary table type paper roll unwinding mechanism as claimed in claim 1, wherein: a tension detection roller is arranged at the downstream of the main unreeling plug and is provided with a tension detector; a swing roller is arranged at the downstream of the tension detection roller, the swing roller is arranged on a swing frame, the swing frame is provided with a swing shaft, the swing frame is driven by an air cylinder to swing around the swing shaft, and the swing frame is also provided with a potentiometer; the tension detector, the potentiometer and the air cylinder are connected to the central controller.

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