Guide device of pre-pressing machine

Abstract

The utility model relates to the field of prepresses, in particular to a prepress guiding device which comprises a fixed machine frame. The guide wheels are arranged on the fixed rack, and every two guide wheels form a group; the guide rod is arranged between the two guide wheels, and the reciprocating motion of the guide rod in the vertical direction is limited through the guide wheels; the pressure head is fixed at the bottom of the guide rod; a main body of the hydraulic cylinder is fixed on the fixed rack, a piston rod of the hydraulic cylinder is fixed on the pressure head, and the hydraulic cylinder is used for driving the pressure head to reciprocate in the vertical direction.

Description

Technical Field

[0001] The utility model relates to the field of pre-pressing machines, in particular to a pre-pressing machine guiding device. Background Art

[0002] In tobacco redrying enterprises, pre-pressing machines are generally used to pre-press tobacco leaves. Pre-pressing is an important part of the production process of redrying enterprises. The existing pre-pressing machine pressure head is generally guided by a hydraulic cylinder with a double guide structure or an electric cylinder with a linear guide. The structure principle is complex, the production and manufacturing are cumbersome, and the cost is high; the double guide structure and the hydraulic piston rod are over-positioned, and the guide device is composed of profiles and iron wheels. The equipment makes a lot of noise during the guiding movement, and the structure occupies a large space; the electric cylinder uses a linear guide, the control accuracy of the linear guide is about 0.1mm, and the linear guide has high requirements for the adjustment of the installation body, the cost price is high, and there is a waste of pre-pressing machine guide. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a pre-pressing machine guide device.

[0004] The technical solution provided by the utility model is:

[0005] A pre-pressing machine guide device,

[0006] Includes fixed rack;

[0007] Guide wheels are arranged on the fixed frame, and two guide wheels form a group;

[0008] A guide rod is disposed between two guide wheels and limits the guide rod to reciprocate in a vertical direction through the guide wheels;

[0009] A pressure head, fixed to the bottom of the guide rod;

[0010] A hydraulic cylinder, wherein the main body of the hydraulic cylinder is fixed on the fixed frame, the piston rod of the hydraulic cylinder is fixed to the pressure head, and the hydraulic cylinder is used to drive the pressure head to reciprocate in the vertical direction.

[0011] Preferably, two groups of guide wheels are arranged in the vertical direction.

[0012] Preferably, the bottom of the guide rod is connected to the pressure head via a seated bearing.

[0013] Preferably, the guide rod is cylindrical, and the guide wheel is a guide wheel that fits the outer surface of the guide rod.

[0014] Beneficial effects of the utility model:

[0015] The pre-pressing machine guide device of the utility model connects the guide rod in parallel with the piston rod of the hydraulic cylinder, so the production and manufacturing process is simple, the appearance and structure are compact, and the production and maintenance costs are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view structural diagram of the pre-pressing machine guide device of the utility model;

[0017] Figure 2 It is a side view structural diagram of the pre-pressing machine guide device of the utility model;

[0018] Figure 3 It is a schematic structural diagram of the cooperation between the guide wheel and the guide rod of the utility model. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings. A pre-pressing machine guide device comprises:

[0020] like Figures 1 to 3 As shown, it includes a fixed frame 1, which is arranged on the ground.

[0021] The guide wheels 2 are arranged on the fixed frame 1, and two guide wheels 2 form a group; two groups of guide wheels 2 are arranged in the vertical direction.

[0022] The guide rod 3 is arranged between the two guide wheels 2, and the guide rod 3 is limited to reciprocate in the vertical direction by the guide wheel 3; the guide rod 3 is cylindrical, and the guide wheel 2 is a guide wheel having an outer surface that fits the guide rod 3.

[0023] The pressure head 4 is fixed to the bottom of the guide rod 3 .

[0024] A hydraulic cylinder 5 , the main body of which is fixed on the fixed frame 1 , a piston rod 6 of which is fixed on the pressure head 4 , and the hydraulic cylinder 5 is used to drive the pressure head 4 to reciprocate in the vertical direction.

[0025] The bottom of the guide rod 3 is connected to the pressure head 4 through a seat bearing 7.

[0026] The pre-pressing machine is a single guide mechanism using a single guide rod 3; the guide wheel 2 is processed from a finished caster, and the guide rod 3 is welded with a round seamless steel pipe and a connection block after machining. The manufacturing process is simple, the appearance and structure are compact, and the manufacturing and maintenance costs are low. The guide wheel 2 is modified from a finished caster, and it mainly consists of a caster seat, a wheel, a bearing, and fasteners. If the guide wheel 2 is a finished product, it may need to be modified. The material of the guide wheel 2 is plastic, and a groove that cooperates with the guide rod 3 for guiding needs to be processed.

[0027] The guide rod 3 is welded by a seamless pipe and a connecting block, and the connecting block is connected with a seat bearing 7. The seat bearing 7 and the fastener cooperate to connect and fasten the guide rod 3 and the pressure head 4. The seat bearing 7 has a certain adjustment function to reduce the requirements on the guide rod size and shape and position accuracy.

[0028] The guide rod 3 is connected to the pressure head 4 through the seat bearing 7, and the hydraulic cylinder 5 drives the pressure head 4 to move up and down through the piston rod 6. The guide rod 3 moves up and down with the pressure head to play a guiding role. The guide wheels 2 are respectively installed on the upper and lower sides of the fixed frame 1, and the guide rod 3 moves in the middle of the guide wheels 2. The guide wheels 2 clamp the guide rod 3, which basically ensures that the guide rod 3 moves in a straight line, thereby preventing the pressure head 4 from twisting. In addition, the guide wheel 2 is made of plastic, has no noise during movement, and has a certain buffering and regulating effect.

Claims

1. A pre-pressing machine guide device, characterized in that: Includes fixed rack; Guide wheels are arranged on the fixed frame, and two guide wheels form a group; A guide rod is disposed between two guide wheels and limits the guide rod to reciprocate in a vertical direction through the guide wheels; A pressure head, fixed to the bottom of the guide rod; A hydraulic cylinder, wherein the main body of the hydraulic cylinder is fixed on the fixed frame, the piston rod of the hydraulic cylinder is fixed to the pressure head, and the hydraulic cylinder is used to drive the pressure head to reciprocate in the vertical direction.

2. The pre-pressing machine guide device according to claim 1, characterized in that: The guide wheels are arranged in two groups in the vertical direction.

3. The pre-pressing machine guide device according to claim 1, characterized in that: The bottom of the guide rod is connected to the pressure head through a seat bearing.

4. The pre-pressing machine guide device according to claim 1, characterized in that: The guide rod is cylindrical, and the guide wheel is a guide wheel that fits the outer surface of the guide rod.

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