Extruder head protection device

Abstract

The utility model relates to the field of extruders, and discloses an extruder head protection device which comprises a mounting cylinder, a fastening mechanism is arranged in an inner cavity of the mounting cylinder, a moving groove is formed in the right side of the mounting cylinder, a protection cylinder is arranged in an inner cavity of the moving groove, and a sealing cover is hinged to the top of the protection cylinder. The extruder head protection device comprises a mounting cylinder and a protection cylinder, limiting grooves are formed in the front face and the back face of the mounting cylinder, limiting bolts are arranged in inner cavities of the limiting grooves, and the limiting bolts are connected with the protection cylinder. According to the length of the extruder head and the protection requirement, the protection cylinder in the moving groove moves rightwards under the action of the limiting bolt in the limiting groove till the extruder head is completely wrapped, the sealing cover is covered, and the limiting bolt is tightened, so that the extruder head can be wholly wrapped and protected. The machine head protection device solves the problem that an existing machine head protection device cannot protect machine heads of various specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to an extruder head protection device. Background Art

[0002] Extruder is a type of plastic machinery, which originated in the 18th century. According to the direction of the extruder head and the angle between the center line of the screw, the extruder head can be divided into right-angle head and bevel head. The screw extruder relies on the pressure and shear force generated by the rotation of the screw to fully plasticize and evenly mix the material and form it through the die.

[0003] The patent with publication number CN 211074662 U discloses an extruder head with a protective device, which includes an extruder, one end of the extruder is fixedly connected to a mounting plate, the side wall of the mounting plate is fixedly connected to the head, the side wall of the mounting plate near the head is provided with a mounting groove, a threaded rod is rotatably connected in the mounting groove, the device is covered by a cover plate, so as to facilitate the protection of the head, and the cover plate is provided with ventilation holes and a dustproof net, which play the function of heat dissipation and dust removal. When the extruder is in use, the protection box and the head are driven to be level by adjusting the servo motor, and then the baffle is lowered to prevent the extruded material strip from sticking to the head and causing short circuit pollution, etc. However, the device has the problem of putting the protection box on the head, and then moving the protection box on the head through structures such as servo motors, but the overall length of the protection box is fixed. When the protection box moves to protect the head at the front end, other positions of the head cannot be well protected. For this reason, an extruder head protection device is proposed to solve the problem that the existing head protection device cannot protect heads of various specifications. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides an extruder head protection device to solve the above-mentioned problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an extruder head protection device, comprising a mounting cylinder, an inner cavity of the mounting cylinder is provided with a fastening mechanism, a movable groove is opened on the right side of the mounting cylinder, a protective cylinder is provided in the inner cavity of the movable groove, a sealing cover is hinged on the top of the protective cylinder, limiting grooves are opened on the front and back sides of the mounting cylinder, a limiting bolt is provided in the inner cavity of the limiting groove, the limiting bolt is connected to the protective cylinder, and a ventilation mechanism is provided inside the mounting cylinder.

[0008] Preferably, the fastening mechanism comprises a groove, two opposite grooves are formed inside the mounting tube, and an arc-shaped clamping plate is provided in the inner cavity of the groove.

[0009] Preferably, a screw rod passes through the outer ring of the mounting cylinder, a bearing is arranged outside the arc-shaped clamping plate, one end of the screw rod is fixedly connected to the inner ring of the bearing, and the other end is fixedly connected to a knob, and the screw rod is connected to the mounting cylinder through a thread.

[0010] Preferably, the ventilation mechanism includes a mounting groove, which is provided on the inner cavity wall of the mounting tube, a ventilation box is provided inside the mounting groove, a plurality of ventilation holes are provided at the bottom of the ventilation box, and the ventilation holes are slightly inclined toward the right side.

[0011] Preferably, an air pump is provided on the top of the mounting tube, and a connecting pipe is provided on the bottom of the air pump, and the connecting pipe passes through the mounting groove and communicates with the ventilation box.

[0012] Preferably, a cleaning brush is provided in the inner cavity of the sealing cover, a rotating shaft is provided on the inner wall of the sealing cover, a rotating block is provided on the left side of the sealing cover, and the rotating shaft passes through the sealing cover and is fixedly connected to the cleaning brush and the rotating block.

[0013] (III) Beneficial effects

[0014] 1. The extruder head protection device sets the mounting sleeve on the extruder head and fixes it with a locking mechanism. According to the length of the extruder head and the protection requirements, the protection sleeve in the movable groove is moved to the right side under the action of the limit bolt in the limit groove until the head is completely covered. The sealing cover is covered and the limit bolt is tightened to protect the extruder head as a whole, which solves the problem that the existing head protection device cannot protect heads of various specifications.

[0015] 2. The extruder head protection device, after the installation barrel is mounted on the extruder head, when the extruder head is hot after use, the air pump on the ventilation mechanism can be turned on, and then the wind is introduced into the ventilation box in the installation slot through the connecting pipe, and then blown into the interior of the installation barrel from the inclined ventilation hole, and then the internal hot air is blown out from the right side, thereby achieving the purpose of rapid cooling of the extruder head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the structural diagram of the utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 3 This is a cross-sectional view of the structure of the utility model;

[0019] Figure 4 The utility model structure Figure 2 Enlarged view of point A in the middle.

[0020] In the figure: 1. mounting cylinder; 2. fastening mechanism; 201. groove; 202. arc-shaped clamping plate; 203. bearing; 204. screw; 205. knob; 3. movable groove; 4. protective cylinder; 5. sealing cover; 6. limit groove; 7. limit bolt; 8. ventilation mechanism; 801. mounting groove; 802. ventilation box; 803. ventilation hole; 804. air pump; 805. connecting pipe; 9. cleaning brush; 10. rotating shaft; 11. rotating block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example: See Figure 1-4 A protection device for an extruder head comprises a mounting cylinder 1, the inner cavity of the mounting cylinder 1 is provided with a fastening mechanism 2, a moving groove 3 is provided on the right side of the mounting cylinder 1, a protective cylinder 4 is provided in the inner cavity of the moving groove 3, a sealing cover 5 is hinged on the top of the protective cylinder 4, limiting grooves 6 are provided on the front and back sides of the mounting cylinder 1, a limiting bolt 7 is provided in the inner cavity of the limiting groove 6, the limiting bolt 7 is connected to the protective cylinder 4, and a ventilation mechanism 8 is provided inside the mounting cylinder 1.

[0023] Furthermore, the fastening mechanism 2 includes a groove 201 , and two opposite grooves 201 are provided inside the mounting tube 1 , and an arc-shaped clamping plate 202 is provided in the inner cavity of the groove 201 .

[0024] Furthermore, a screw 204 passes through the outer ring of the mounting cylinder 1, and a bearing 203 is arranged on the outside of the arc-shaped clamping plate 202. One end of the screw 204 is fixedly connected to the inner ring of the bearing 203, and the other end is fixedly connected to a knob 205. The screw 204 is connected to the mounting cylinder 1 through a threaded connection. When installing the mounting cylinder 1, the two knobs 205 can be used to drive the screw 204 to rotate, and the bearing 203 can be used to drive the arc-shaped clamping plate 202 in the groove 201 to move toward the middle to clamp the extruder head. The protective device can be fixed on the extruder according to the size of the extruder head, thereby improving the applicability of the protective device.

[0025] Furthermore, the ventilation mechanism 8 includes a mounting groove 801, which is provided on the inner wall of the mounting tube 1. A ventilation box 802 is provided inside the mounting groove 801. A plurality of ventilation holes 803 are provided at the bottom of the ventilation box 802, and the ventilation holes 803 are slightly inclined toward the right.

[0026] Furthermore, an air pump 804 is provided on the top of the mounting cylinder 1, and a connecting pipe 805 is provided on the bottom of the air pump 804. The connecting pipe 805 passes through the mounting groove 801 and is communicated with the ventilation box 802. After the mounting cylinder 1 is mounted on the extruder head, when the extruder head is hot after use, the air pump 804 on the ventilation mechanism 8 can be turned on, and then the wind is introduced into the ventilation box 802 in the mounting groove 801 through the connecting pipe 805, and then blown into the interior of the mounting cylinder 1 from the inclined ventilation hole 803, and then the internal hot air is blown out from the right side, thereby achieving the purpose of quickly cooling the extruder head.

[0027] Furthermore, a cleaning brush 9 is provided in the inner cavity of the sealing cover 5, a rotating shaft 10 is provided on the inner wall of the sealing cover 5, a rotating block 11 is provided on the left side of the sealing cover 5, the rotating shaft 10 penetrates the sealing cover 5 and is fixedly connected to the cleaning brush 9 and the rotating block 11. After the temperature of the die head drops and the sealing cover 5 is covered, the cleaning brush 9 is close to the die head, and then the rotating block 11 is used to cooperate with the rotating shaft 10 to drive the cleaning brush 9 to rotate, so that the extruder die head can be cleaned.

[0028] Working principle: When using this extruder head protection device, the installation cylinder 1 is mounted on the extruder head and fixed with the locking mechanism 2. According to the length of the extruder head and the protection requirements, the protection cylinder 4 in the movable groove 3 is moved to the right under the action of the limit bolt 7 in the limit groove 6 until the head is completely covered. The sealing cover 5 is covered and the limit bolt 7 is tightened to protect the extruder head as a whole, which solves the problem that the existing head protection device cannot protect heads of various specifications. After the installation cylinder 1 is mounted on the extruder head, when When the extruder head is hot after use, the air pump 804 on the ventilation mechanism 8 can be turned on, and the wind can be introduced into the ventilation box 802 in the installation groove 801 through the connecting pipe 805, and then blown into the inside of the installation cylinder 1 from the inclined ventilation hole 803, and then the internal hot air is blown out from the right side, thereby achieving the purpose of quickly cooling the extruder head; after the temperature of the head drops and the sealing cover 5 is covered, the cleaning brush 9 is made close to the head, and then the cleaning brush 9 is driven to rotate by the rotating block 11 and the rotating shaft 10, so that the extruder head can be cleaned.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extruder head protection device, comprising a mounting barrel (1), characterized in that: The inner cavity of the installation tube (1) is provided with a fastening mechanism (2); a movable groove (3) is provided on the right side of the installation tube (1); a protective tube (4) is provided in the inner cavity of the movable groove (3); a sealing cover (5) is hingedly connected to the top of the protective tube (4); limiting grooves (6) are provided on the front and back sides of the installation tube (1); a limiting bolt (7) is provided in the inner cavity of the limiting groove (6); the limiting bolt (7) is connected to the protective tube (4); and a ventilation mechanism (8) is provided inside the installation tube (1).

2. The extruder head protection device according to claim 1, characterized in that: The fastening mechanism (2) comprises a groove (201), two opposite grooves (201) are provided inside the installation tube (1), and the inner cavity of the groove (201) is provided with an arc-shaped clamping plate (202).

3. The extruder head protection device according to claim 2, characterized in that: A screw rod (204) passes through the outer ring of the installation cylinder (1); a bearing (203) is arranged outside the arc-shaped clamping plate (202); one end of the screw rod (204) is fixedly connected to the inner ring of the bearing (203); the other end is fixedly connected to a knob (205); and the screw rod (204) is connected to the installation cylinder (1) via a thread.

4. The extruder head protection device according to claim 1, characterized in that: The ventilation mechanism (8) comprises a mounting groove (801), wherein the mounting groove (801) is provided on the inner wall of the mounting tube (1), a ventilation box (802) is provided inside the mounting groove (801), a plurality of ventilation holes (803) are provided at the bottom of the ventilation box (802), and the ventilation holes (803) are slightly inclined toward the right side.

5. The extruder head protection device according to claim 1, characterized in that: An air pump (804) is arranged at the top of the installation tube (1), and a connecting pipe (805) is arranged at the bottom of the air pump (804). The connecting pipe (805) passes through the installation groove (801) and communicates with the ventilation box (802).

6. The extruder head protection device according to claim 1, characterized in that: The inner cavity of the sealing cover (5) is provided with a cleaning brush (9), the inner wall of the sealing cover (5) is provided with a rotating shaft (10), and the left side of the sealing cover (5) is provided with a rotating block (11), and the rotating shaft (10) passes through the sealing cover (5) and is fixedly connected to the cleaning brush (9) and the rotating block (11).

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