Rubber raw material preheating anti-sticking device

Abstract

The utility model belongs to the technical field of rubber production, and relates to a rubber raw material preheating anti-sticking device, which comprises a screw conveyer, and is characterized by further comprising a shell, a heating sleeve and an anti-sticking mechanism, the shell is covered outside the screw conveyer, an extrusion head of the screw conveyer extends out of the front end of the shell, and the heating sleeve is sleeved on the anti-sticking mechanism. A heating sleeve is installed outside a conveying cylinder of the spiral conveyor in a wrapping mode, and an anti-sticking mechanism is arranged at one end of an extrusion head of the spiral conveyor at the top of the shell. The rubber raw material preheating anti-sticking device is scientific and reasonable in structural design, has the advantages of being uniform in heating, efficient in work, capable of preventing discharged materials from sticking, convenient to transfer the raw materials and easy to implement, and has high innovativeness.

Description

Technical Field

[0001] The utility model belongs to the technical field of rubber production, and relates to a pretreatment device for rubber raw materials, in particular to a preheating and anti-sticking device for rubber raw materials. Background Art

[0002] Before rubber products are processed and molded, large pieces of rubber raw materials need to be cut to fit the feeding port of the corresponding molding equipment. However, due to the high hardness of rubber raw materials, it is difficult to cut them directly. Therefore, the rubber raw materials need to be preheated before cutting.

[0003] The existing preheating equipment only heats the bottom of the hopper of the screw conveyor, which requires a large amount of power, is unevenly heated, and has low efficiency. In addition, after heating and extrusion, the rubber will adhere to the receiving container, making it inconvenient to transfer the rubber. Summary of the invention

[0004] The utility model aims to provide a rubber raw material preheating and anti-sticking device which has scientific and reasonable structural design, uniform heating, high working efficiency, prevents material sticking, facilitates raw material transfer and is easy to implement.

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

[0006] The rubber raw material preheating and anti-sticking device includes a screw conveyor, which is characterized in that it also includes an outer shell, a heating sleeve and an anti-sticking mechanism. The outer cover of the screw conveyor is provided with the outer shell, the extrusion head of the screw conveyor extends from the front end of the outer shell, the heating sleeve is wrapped and installed on the outside of the conveying cylinder of the screw conveyor, and the anti-sticking mechanism is provided at one end of the extrusion head of the screw conveyor at the top of the outer shell.

[0007] Moreover, the screw conveyor comprises a conveying cylinder, a conveying screw, a conveying motor, an extruder head, a feed hopper, a feed screw and a feed motor. A conveying cylinder is horizontally arranged inside the shell along its length direction. A conveying screw is arranged inside the conveying cylinder. The conveying screw is driven by the conveying motor arranged at the rear of the conveying cylinder. A feed port is arranged at the rear of the upper end of the conveying cylinder. A feed hopper is arranged at the upper end of the feed port. The feed hopper is arranged opposite to the opening opened at the top of the shell.

[0008] The feed hopper is a structure with a trapezoidal upper cross section and a rectangular lower cross section. Two horizontally oppositely arranged feed screw rods are arranged inside the rectangular structure along its length direction. The two feed screw rods are respectively driven by a feed motor chain.

[0009] Moreover, the heating sleeve comprises an upper heating half ring and a lower heating half ring, both sides of which are provided with connecting ears, each connecting ear is provided with a connecting hole, and the upper heating half ring and the lower heating half ring are connected by screws after wrapping the conveying tube;

[0010] The upper heating half ring and the lower heating half ring both include a heat-insulating layer and a heating lining which are sequentially arranged from the outside to the inside, and an electric heating wire which is wound in a serpentine shape is arranged in the heating lining.

[0011] Moreover, the anti-sticking mechanism includes a guide tray, a limit plate, a push-pull cylinder, a powder box and a vibrator. A U-shaped guide tray is provided at the top front end of the shell, and a powder box is installed in the guide tray. The bottom of the powder box is a screen structure, and push-pull cylinders are provided on both sides of the powder box to drive it to move back and forth in the guide tray. A limit plate is provided at the rear end of the guide tray, and a vibrator is provided on the top of the box cover of the powder box.

[0012] Moreover, the front end of the guide support plate is located at the upper end of the extrusion head.

[0013] The advantages and beneficial effects of the utility model are:

[0014] 1. The rubber raw material preheating and anti-sticking device realizes 360° wrapping heating of the conveying cylinder through the setting of the wrapping heating sleeve, so that the heating is more uniform and efficient, thereby improving the heating efficiency of the rubber raw materials therein; through the setting of the anti-sticking mechanism, the powder can be evenly vibrated and spread in the receiving container to avoid the problem of inconvenience in transfer due to the hot melt rubber sticking in the receiving container.

[0015] 2. The rubber raw material preheating and anti-sticking device can shield the extrusion head by setting the front end of the guide support plate at the upper end of the extrusion head, so that the material distribution and vibration for anti-sticking can be spread to an effective area to avoid waste of powder.

[0016] 3. The utility model has a scientific and reasonable structural design, has the advantages of uniform heating, efficient operation, prevention of discharge material adhesion, convenient raw material transfer, and easy implementation. It is a highly innovative rubber raw material preheating and anti-sticking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model (powder box is retracted);

[0018] Figure 2 This is a schematic diagram of the structure of the powder box of the utility model extending out;

[0019] Figure 3 It is a left view of the utility model;

[0020] Figure 4This is a schematic diagram of the structure of the heating jacket of the utility model;

[0021] Figure 5 for Figure 4 A top view of

[0022] Figure 6 This is a structural schematic diagram illustrating the internal structure of the upper heating half ring and the lower heating half ring of the heating sleeve of the utility model.

[0023] Attached photos

[0024] 1-extrusion head, 2-anti-sticking mechanism, 3-heating sleeve, 4-feeding motor, 5-housing, 6-feeding hopper, 7-conveying motor, 8-box cover, 9-powder box, 10-vibrator, 11-guide support plate, 12-push-pull cylinder, 13-upper heating half ring, 14-lower heating half ring, 15-connecting ear, 16-sleeve hole, 17-insulation layer, 18-heating lining, 19-electric heating wire. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below through specific embodiments. The following embodiments are merely descriptive and not restrictive, and the protection scope of the present invention cannot be limited by them.

[0026] like Figure 1-Figure 6 As shown, the rubber raw material preheating and anti-sticking device includes a screw conveyor, and its innovation lies in: it also includes a shell 5, a heating sleeve 3 and an anti-sticking mechanism 2, the shell is installed on the outer cover of the screw conveyor, the extrusion head 1 of the screw conveyor extends from the front end of the shell, and a heating sleeve for heating the rubber raw material is installed on the outside of the conveying cylinder of the screw conveyor, and an anti-sticking mechanism for preventing the rubber raw material from sticking is arranged at one end of the extrusion head of the screw conveyor at the top of the shell.

[0027] The screw conveyor comprises a conveying cylinder, a conveying screw, a conveying motor 7, an extruder head, a feed hopper 6, a feed screw and a feed motor 4. A conveying cylinder is horizontally arranged inside the shell along its length direction. A conveying screw is arranged inside the conveying cylinder. The conveying screw is driven by a conveying motor arranged at the rear of the conveying cylinder. A feed port is arranged at the rear of the upper end of the conveying cylinder. A feed hopper is arranged at the upper end of the feed port. The feed hopper is arranged opposite to the opening opened at the top of the shell.

[0028] The feed hopper is a structure with a trapezoidal upper cross section and a rectangular lower cross section. Two horizontally oppositely arranged feed screw rods are arranged inside the rectangular structure along its length direction. The two feed screw rods are respectively driven by a feed motor chain.

[0029] When in use, a pressure plate driven by a hydraulic cylinder is arranged directly above the feed hopper. The pressure plate presses down the rubber raw material, and the relatively rotating feed screw in the feed hopper squeezes the rubber raw material and discharges the rubber raw material. The rubber raw material entering the conveying cylinder is then extruded by the conveying screw.

[0030] like Figure 4-Figure 6 As shown, the heating sleeve includes an upper heating half ring 13 and a lower heating half ring 14, and connecting ears 15 are provided on both sides of the upper heating half ring and the lower heating half ring, and connecting holes are provided on each connecting ear. The upper heating half ring and the lower heating half ring wrap around the conveying cylinder and are connected by screws; a sleeve hole 16 is opened on the upper half heating ring at a position corresponding to the feed hopper.

[0031] The upper heating half ring and the lower heating half ring each include a heat preservation layer 17 and a heating lining 18 arranged from outside to inside, and a snake-shaped electric heating wire 19 is arranged in the heating lining. The heat preservation layer can be made of ceramic fiber material, and the heating lining is fiber cloth.

[0032] The anti-sticking mechanism includes a guide support plate 11, a limit plate, a push-pull cylinder 12, a powder box 9 and a vibrator 10. A U-shaped guide support plate is provided at the top front end of the housing, a powder box is installed in the guide support plate, the bottom of the powder box is a screen structure, push-pull cylinders are provided on both sides of the powder box to drive it to move forward and backward in the guide support plate, a limit plate is provided at the rear end of the guide support plate, and a vibrator is provided on the top of the box cover 8 of the powder box. The front end of the guide support plate is located at the upper end of the extruder head.

[0033] Before using the anti-sticking mechanism, anti-sticking powder, such as talcum powder, is pre-filled in the powder box. Before the rubber raw material is extruded, the push-pull cylinder drives the powder box to be pushed out, and under the action of the vibrator, the powder is sifted from the bottom of the powder box to the receiving container, and then the heated rubber raw material is extruded on the powder, which effectively avoids the inconvenience of transferring the rubber raw material due to adhesion to the receiving container.

[0034] 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. A rubber raw material preheating and anti-sticking device, including a screw conveyor, characterized in that: It also includes an outer shell, a heating sleeve and an anti-sticking mechanism. The outer cover of the screw conveyor is equipped with an outer shell, the extrusion head of the screw conveyor extends from the front end of the outer shell, a heating sleeve is installed and wrapped around the outside of the conveying cylinder of the screw conveyor, and an anti-sticking mechanism is arranged at one end of the extrusion head of the screw conveyor at the top of the outer shell.

2. The rubber raw material preheating and anti-sticking device according to claim 1 is characterized in that: The screw conveyor comprises a conveying cylinder, a conveying screw, a conveying motor, an extruder, a feed hopper, a feed screw and a feed motor. A conveying cylinder is horizontally arranged inside the shell along its length direction. A conveying screw is arranged inside the conveying cylinder. The conveying screw is driven by the conveying motor arranged at the rear of the conveying cylinder. A feed port is arranged at the rear of the upper end of the conveying cylinder. A feed hopper is arranged at the upper end of the feed port. The feed hopper is arranged opposite to the opening opened at the top of the shell. The feed hopper is a structure with a trapezoidal upper cross section and a rectangular lower cross section. Two horizontally oppositely arranged feed screw rods are arranged inside the rectangular structure along its length direction. The two feed screw rods are respectively driven by a feed motor chain.

3. The rubber raw material preheating and anti-sticking device according to claim 1 is characterized in that: The heating sleeve comprises an upper heating half ring and a lower heating half ring, both sides of which are provided with connecting ears, each connecting ear is provided with a connecting hole, and the upper heating half ring and the lower heating half ring are connected by screws after wrapping the conveying tube; The upper heating half ring and the lower heating half ring both include a heat preservation layer and a heating lining which are sequentially arranged from the outside to the inside, and an electric heating wire which is wound in a serpentine shape is arranged in the heating lining.

4. The rubber raw material preheating and anti-sticking device according to claim 1 is characterized in that: The anti-sticking mechanism includes a guide support plate, a limit plate, a push-pull cylinder, a powder box and a vibrator. A U-shaped guide support plate is provided at the top front end of the shell, and a powder box is installed in the guide support plate. The bottom of the powder box is a screen structure, and push-pull cylinders are provided on both sides of the powder box to drive it to move back and forth in the guide support plate. A limit plate is provided at the rear end of the guide support plate, and a vibrator is provided on the top of the box cover of the powder box.

5. The rubber raw material preheating and anti-sticking device according to claim 4 is characterized in that: The front end of the guide support plate is located at the upper end of the extrusion head.

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