CN203093266U - A mandrel flattening device - Google Patents

Abstract

The utility model relates to a mandrel flattening device, which comprises a support and a roller mandrel arranged on the support through a support bearing, a driving mechanism is fixedly connected to the support, a nut which can slide up and down and can be pressed on the rear end of the roller mandrel is arranged on the support, a screw rod which cooperates with the nut is arranged in the nut, and the driving mechanism is connected to the screw rod through a transmission mechanism and drives the screw rod to rotate. The utility model overcomes the shortcomings of the prior art and provides a flattening device to solve the problem of mandrel sagging.

Description

A mandrel flattening device

【Technical field】

The utility model relates to a printing unit of a unit type flexo printing machine, in particular to a printing plate mandrel and an anvil roll mandrel flattening device. the

【Background technique】

The printing unit of the existing high-end unit type flexographic printing machine, the screen roller and the printing plate mostly adopt the sleeve structure, because the sleeve needs to be taken out from the operation side. Therefore, the supporting structure of the printing plate and anilox roller mandrel is mostly fixed support on the transmission side, and the operating side is movable support. When the support on the operating side is opened, the front end of the mandrel will sag. The main reason for the sagging is that the mandrel is too heavy, too long, and the mandrel is deformed. The support on the transmission side is not stable, which is caused by elastic deformation. Sizes vary according to the weight and length of the mandrel. Like this, when the support on the operating side is closed again, because of the sagging of the mandrel front end, the support cannot be closed. the

The existing method is: it is difficult to solve the sagging of the mandrel of the printing plate and anilox roller. If the sag is small, the chamfering angle of the front end of the mandrel should be increased to increase the guide length when the support is combined. Although the support can be closed , but it takes a lot of effort, and it is easy to damage the front bearing; if the sag is larger, it is mostly unreasonable to use a lever to pry it up artificially. the

【Content of utility model】

The purpose of the utility model is to provide a flattening device for solving the sagging of the mandrel in order to overcome the deficiencies in the prior art. the

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

An anilox roll mandrel and printing plate mandrel flattening device, characterized in that it includes a support 1 and a roll mandrel 3 set on the support through a support bearing 2, and a drive mechanism 4 is fixedly connected to the support 1 , the support 1 is provided with a nut 5 that can slide up and down and can be pressed on the rear end of the roller mandrel 3, and a screw 6 that cooperates with it is provided in the nut 5, and the driving mechanism 4 is connected to the On the screw mandrel 6 and drive the screw mandrel to rotate. the

An anilox roller mandrel and printing plate mandrel flattening device as described above is characterized in that a through hole 11 is provided on the support 1, and the nut 5 is placed in the through hole and the rotation of the nut is restricted. The screw rod 6 is arranged on the support 1 through the screw rod bearing 7 . the

An anilox roll mandrel and printing plate mandrel flattening device as described above is characterized in that the transmission mechanism includes a swing arm 8 fixedly connected to the screw rod 6, and a rotating shaft 9 is pivotally connected to the swing arm 8 , the other end of the rotating shaft 9 is pivotally connected to the driving mechanism 4 . the

A net roll mandrel flattening device as described above is characterized in that the driving mechanism 4 is an adjustable stroke cylinder, the cylinder rod of the driving cylinder is fixedly connected to a rod end bearing 10, and the rod end bearing 10 is connected to the rotating shaft 9 Pivot. the

Compared with the prior art, the utility model has the following advantages:

The utility model starts from the main cause of the sagging of the mandrel, and according to the principle of the lever, takes the support bearing as the fulcrum, uses the cylinder to drive the screw, presses down the rear end of the mandrel, and forces the front end of the mandrel to lift up automatically. The front end of the mandrel can be completely overwhelmed in a horizontal state, so it is very easy and flexible when the support seat at the front end is closed again. the

【Description of drawings】

Fig. 1 is the schematic diagram of the utility model. the

Figure 2 is a schematic diagram of the cylinder connected to the swing arm. the

Fig. 3 is a schematic diagram of the cooperation of the screw mandrel, the nut and the roller mandrel. the

【Detailed ways】

The utility model is described in detail below in conjunction with accompanying drawing:

As shown in the figure, an anilox roll mandrel flattening device includes a support 1 and a roll mandrel 3 mounted on the support through a support bearing 2 , and a drive mechanism 4 is fixedly connected to the support 1 . The support 1 is provided with a nut 5 that can slide up and down and can be pressed on the rear end of the roller mandrel 3 . A threaded mandrel 6 matched therewith is arranged in the nut 5 . The driving mechanism 4 is connected to the screw mandrel 6 through a transmission mechanism and drives the screw mandrel to rotate. the

The driving mechanism 4 acts and drives the screw to rotate through the transmission mechanism. Since the nut 5 can only slide up and down, but cannot rotate, the screw pushes the nut 5 to slide down, and the nut 5 can press the back of the roller mandrel 3. end to end. In this way, after the front end of the roller mandrel 3 is moved down from the support, the roller mandrel 3 can also maintain balance, and the front end of the roller mandrel 3 will not sag. the

Specifically, the support 1 is provided with a through hole 11, and the nut 5 is placed in the through hole to restrict the rotation of the nut, so that the nut 5 can only slide up and down, but cannot rotate. The screw 6 is arranged on the support 1 through the screw bearing 7 . the

The transmission mechanism includes a swing arm 8 fixedly connected to the screw rod 6 , a rotating shaft 9 is pivotally connected to the swing arm 8 , and the other end of the rotating shaft 9 is pivotally connected to the driving mechanism 4 . the

The driving mechanism 4 is a driving cylinder, and the cylinder rod of the driving cylinder is fixedly connected to a rod-end bearing 10 , and the rod-end bearing 10 is pivotally connected with the rotating shaft 9 . the

In this way, when the front end of the roller mandrel 3 is to be removed from the support, the cylinder is activated first, and the cylinder rod pushes the swing arm 8 to rotate through the rod end bearing 10, and the rotation of the swing arm 8 drives the rotation of the screw mandrel 6 , the screw mandrel then promotes the nut 5 to slide downwards, and the nut 5 can press the rear end of the roller mandrel 3. the

Claims (4)

1. A mandrel flattening device, characterized in that it includes a support (1) and a roller mandrel (3) set on the support through a support bearing (2), and is fixedly connected to the support (1). The drive mechanism (4) is provided with a nut (5) that can slide up and down and can be pressed on the rear end of the roller mandrel (3) on the support (1), and a nut (5) that cooperates with it is provided in the nut (5). The screw mandrel (6), the driving mechanism (4) is connected to the screw mandrel (6) through the transmission mechanism and drives the screw mandrel to rotate. the 2. A mandrel flattening device according to claim 1, characterized in that a through hole (11) is provided on the support (1), and the nut (5) is placed in the through hole and constrained The nut rotates, and the screw rod (6) is set on the support (1) through the screw rod bearing (7). the 3. A mandrel flattening device according to claim 2, characterized in that the transmission mechanism includes a swing arm (8) fixedly connected to the screw rod (6), pivoting on the swing arm (8) A rotating shaft (9) is connected, and the other end of the rotating shaft (9) is pivotally connected to the driving mechanism (4). the 4. A mandrel flattening device according to claim 3, characterized in that the driving mechanism (4) is an adjustable stroke cylinder, and the cylinder rod of the driving cylinder is fixedly connected to a rod end bearing (10), The rod end bearing (10) is pivotally connected to the rotating shaft (9). the

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