Head raising device of electric extruder

Abstract

The utility model relates to the technical field of extruders, in particular to a head lifting device of an electric extruder. Comprising a sliding rail fixing bottom plate, linear sliding rails, inclined plates, a lead screw nut fixing plate, a ball screw and lifting mechanisms, the sliding rail fixing bottom plate is fixedly installed on an extrusion rack, the two linear sliding rails are fixedly installed on the sliding rail fixing bottom plate, the inclined plates are fixedly installed on sliding tables of the linear sliding rails, the slope ends of the two inclined plates are each provided with a lifting mechanism, and the lead screw nut fixing plate is fixedly installed on the lifting mechanisms. The vertical end faces of the two inclined plates are connected through a lead screw nut fixing plate, and one end of the ball screw penetrates through the center of the lead screw nut fixing plate and extends to the center of a fixing block at the other end of the sliding rail fixing bottom plate. Compared with the prior art, the head raising device of the electric extruder has the advantages that the problem of low product quality caused by the fact that a power mechanism of an upper die drives the upper die to lift in the prior art is solved, and due to the fact that the head raising device of the electric extruder is small in size, the power of a used motor is not large, energy consumption is reduced, and working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of extruders, in particular to a head-raising device for an electric extruder. Background Art

[0002] Every time the extrusion mechanism of the blow molding machine extrude material, the part of the extrusion mechanism that extrude material needs to be raised, otherwise the extruded material will touch the mold, causing the extruded material to deform. In the prior art, the extrusion mechanism is lifted and lowered, and generally a power mechanism is provided at the part of the extrusion mechanism that extrude material, and the power mechanism drives the part of the extrusion mechanism that extrude material to achieve the lifting action. However, it still has the following defects: 1. When the power mechanism drives the part of the extrusion mechanism that extrudes material to be lifted or lowered, inertia will be generated, and the extruded material is easy to bend and deform, affecting the quality of the product; 2. The flow rate required for hydraulic drive is too large, which conflicts with other actions and is not conducive to improving work efficiency; 3. Due to the large size of the extrusion mechanism, it requires a large power to drive it when lifting or lowering, which consumes a lot of energy and increases the cost of the enterprise.

[0003] Therefore, there is an urgent need for an electric extruder head-raising device that can reduce costs and increase efficiency. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an electric extruder head raising device which can reduce costs, improve work efficiency and enhance product quality.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] An electric extruder head raising device, comprising:

[0007] A slide rail fixed base plate, a linear slide rail, an inclined plate, a screw nut fixed plate, a ball screw and a lifting mechanism. The slide rail fixed base plate is fixedly mounted on the extruder frame. Two linear slide rails are fixedly mounted on the slide rail fixed base plate. A inclined plate is fixedly mounted on the slide table of each linear slide rail. A lifting mechanism is arranged on the inclined ends of the two inclined plates. The vertical end surfaces of the two inclined plates are connected by a screw nut fixed plate. One end of the ball screw passes through the center of the screw nut fixed plate and extends to the center of the fixed block at the other end of the slide rail fixed base plate.

[0008] Moreover, a servo motor is arranged at the other end of the ball screw, and the screw nut of the ball screw is fixed on the screw nut fixing plate.

[0009] Moreover, the lifting mechanism includes a bearing, a connecting piece and a supporting plate. A hole is provided in the middle of the connecting piece. The supporting plate is arranged on the top of the connecting piece. The bearing is installed in the hole of the connecting piece.

[0010] Moreover, a plurality of limit blocks are arranged on both sides of the slide rail fixing base plate, and the limit blocks are connected to the slide table through limit members.

[0011] The advantages and positive effects of the utility model are:

[0012] The electric extruder lifting device described in the utility model is arranged at the lower part of the upper mold, and the rotation of the ball screw is driven by the servo motor. Since the ball screw passes through the screw nut fixing plate, the screw nut fixing plate is connected to the slide table of the linear slide rail, so when the ball screw rotates, it can drive the lifting mechanism on the inclined plate to move up and down along the inclined plate, so that the support plate of the lifting mechanism supports the upper mold to lift and lower the upper mold, completing the extruder lifting action, avoiding the lower product quality caused by the upper mold's own power mechanism driving the upper mold to lift and lower in the prior art. In addition, since the electric extruder lifting device described in the utility model is small in size, the motor power used will not be very large, which reduces energy consumption, improves work efficiency, and thus improves work efficiency.

[0013] The utility model uses the power of a servo motor to drive the lifting mechanism to move up and down, avoiding the problem of using hydraulic drive in the prior art, which causes slight vibration of the extrusion mechanism due to the action of the reversing valve at the moment of lifting and lowering, and the extruded material will also shake, thereby affecting the product quality. The design of the utility model realizes that the bearing and the inclined surface are always in contact, and the instantaneous action of raising and lowering is smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall structure diagram of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 It is a side view of the utility model.

[0017] Reference numerals

[0018] 1-support plate, 2-connecting part, 3-inclined plate, 4-screw nut fixing plate, 5-slide, 6-servo motor, 7-limit block, 8-limit part, 9-slide rail fixing base plate, 10-linear slide rail, 11-fixed block, 12-ball screw, 13-bearing, 14-screw nut. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and through specific embodiments. The following embodiments are merely descriptive and not restrictive, and the protection scope of the present invention cannot be limited thereto.

[0020] An electric extruder head raising device, comprising:

[0021] A slide rail fixed base plate 9, a linear slide rail 10, an inclined plate 3, a screw nut fixed plate 4, a ball screw 12 and a lifting mechanism. The slide rail fixed base plate 9 is fixedly mounted on the extruder frame. Two linear slide rails 10 are fixedly mounted on the slide rail fixed base plate 9. A inclined plate 3 is fixedly mounted on the slide table 5 of each linear slide rail 10. A lifting mechanism is arranged at the inclined ends of the two inclined plates 3. The vertical end surfaces of the two inclined plates 3 are connected by a screw nut fixed plate 4 to realize the simultaneous movement of the two inclined plates 3. One end of the ball screw 12 passes through the center of the screw nut fixed plate 4 and extends to the center of the fixed block 11 at the other end of the slide rail fixed base plate 9.

[0022] A servo motor 6 is provided at the other end of the ball screw 12 for driving the ball screw 12 to rotate. The screw nut 14 of the ball screw 12 is fixed on the screw nut fixing plate 4. When the servo motor 6 drives the ball screw 12 to rotate, the screw nut 14 is driven to move.

[0023] The lifting mechanism includes a bearing 13, a connecting member 2 and a support plate 1. A hole is provided in the middle of the connecting member 2 for placing the bearing 13. The support plate 1 is arranged on the top of the connecting member 2. The bearing 13 is installed in the hole of the connecting member 2 so that the lifting mechanism can only rotate while controlling its axial and radial movements, thereby reducing the friction coefficient during the lifting process.

[0024] A plurality of limit blocks 7 are also provided on both sides of the slide rail fixed base plate 9 . The limit blocks 7 are connected to the slide table 5 of the linear slide rail 10 through limit members 8 , so as to limit the sliding displacement of the slide table 5 .

[0025] Working principle:

[0026] During operation, the servo motor 6 is started, and the servo motor 6 drives the ball screw to rotate. The rotation of the ball screw can drive the screw nut 14 to move left and right. Since the screw nut 14 is fixed on the screw nut fixing plate 4, the inclined plate 3 and the slide 5 also move left and right, driving the lifting mechanism to move up and down. The support plate 1 of the lifting mechanism is connected to the upper mold, so the upper mold moves up and down accordingly, completing the extruder lifting action.

[0027] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. An electric extruder head-raising device, characterized in that: include: A slide rail fixed base plate, a linear slide rail, an inclined plate, a screw nut fixed plate, a ball screw and a lifting mechanism. The slide rail fixed base plate is fixedly mounted on the extruder frame. Two linear slide rails are fixedly mounted on the slide rail fixed base plate. A inclined plate is fixedly mounted on the slide table of each linear slide rail. A lifting mechanism is arranged on the inclined ends of the two inclined plates. The vertical end surfaces of the two inclined plates are connected by a screw nut fixed plate. One end of the ball screw passes through the center of the screw nut fixed plate and extends to the center of the fixed block at the other end of the slide rail fixed base plate.

2. The electric extruder head raising device according to claim 1, characterized in that: A servo motor is arranged at the other end of the ball screw, and the screw nut of the ball screw is fixed on the screw nut fixing plate.

3. The electric extruder head raising device according to claim 1, characterized in that: The lifting mechanism comprises a bearing, a connecting piece and a supporting plate. A hole is arranged in the middle of the connecting piece. The supporting plate is arranged on the top of the connecting piece. The bearing is installed in the hole of the connecting piece.

4. The electric extruder head raising device according to claim 1, characterized in that: A plurality of limit blocks are also arranged on both sides of the slide rail fixing base plate, and the limit blocks are connected to the slide table through limit members.

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