Vacuum sizing box for pipe of extruder

Abstract

The utility model relates to the technical field of extruders, and discloses a vacuum sizing box for an extruder pipe, which comprises a discharging box, pipe plastic arranged in the discharging box, a sizing sleeve matched with the discharging box, a traction pipe arranged in the sizing sleeve, and pushing devices arranged at the top and the bottom of the periphery of the discharging box, an alarm device is installed between the discharging box and the sizing sleeve, the pushing device comprises a servo air cylinder and a bearing plate, and the alarm device comprises a buzzer and a pressure sensor. According to the utility model, through the arrangement of the positioning block and the positioning groove in the alarm device, when the sizing sleeve is matched with the opening of the discharging box, the buzzer gives an alarm, so as to determine that the output port of the discharging box is concentric with the inlet of the sizing sleeve, thereby solving the problem that the output port of an extruder is not concentric with the inlet of the sizing sleeve in the traction process of the traction pipe; the problem that the pipe is bent during forming due to the fact that deviation is generated between the pipe and the pipe caused by the influence of the caliber of the pipe is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to a vacuum sizing box for extruder pipes. Background Art

[0002] The vacuum sizing method is the main method for shaping plastic pipes. Its purpose is to obtain accurate dimensions and to compact the plastic along the inner wall of the sizing sleeve. This method uses the pressure difference between the inner cavity and the wall of the pipe to adsorb the outer surface of the pipe into the sizing sleeve to obtain the outer diameter and wall thickness requirements.

[0003] When the vacuum sizing box is working, it is necessary to fix the plastic at the output end of the extruder with one end of the traction tube in the sizing sleeve, and then pull the plastic into the sizing sleeve for shaping. However, during the traction process of the traction tube, the output port of the extruder and the inlet of the sizing sleeve will be affected by the diameter of the pipe, resulting in a deviation between the two, which will cause problems in the molding of the pipe.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a vacuum sizing box for extruder pipes. By setting a positioning block and a positioning groove in an alarm device, when the sizing sleeve matches the port of a discharge box, a buzzer alarms, thereby determining that the output port of the discharge box is concentric with the inlet of the sizing sleeve, thereby solving the problem that during the traction process of the traction tube, the output port of the extruder and the inlet of the sizing sleeve are affected by the caliber of the pipe, resulting in a deviation between the two, thereby causing the pipe to bend during molding.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A vacuum sizing box for extruder pipes comprises a discharge box, pipe plastic installed inside the discharge box, a sizing sleeve matching the discharge box, and a traction tube installed in the sizing sleeve. Pushing devices are installed at the top and bottom of the outer periphery of the discharge box. An alarm device is installed between the discharge box and the sizing sleeve. The pushing device comprises a servo cylinder and a bearing plate. The operation of the servo cylinder drives the bearing plate to move toward the sizing sleeve. The alarm device comprises a buzzer and a pressure sensor, so that when the bearing plate moves toward the sizing sleeve, the bearing plate applies pressure to the pressure sensor to start the buzzer.

[0008] Preferably, the servo cylinder is fixedly installed on the outer periphery of the discharge box, a bearing block is fixedly connected to one side of the bearing plate, a movable rod is fixedly connected to the bottom of one side of the bearing block, the movable rod extends into the discharge box and is slidably connected to the discharge box, a telescopic rod is fixedly connected to the top of one side of the bearing block, and one end of the telescopic rod is fixedly connected to the output end of the servo cylinder.

[0009] Preferably, positioning blocks are fixedly connected at both ends of one side of the carrier plate, positioning grooves are opened at both ends of one side of the sizing sleeve, the positioning blocks are consistent with the positioning grooves, the pressure sensor is fixedly installed in the positioning grooves, and the pressure sensor is electrically connected to the buzzer.

[0010] Preferably, two groups of clamping devices are installed between the sizing sleeve and the discharge box, and the two groups of clamping devices are respectively installed at the bottom of two supporting plates. The clamping device includes a jacket, a groove is opened at the bottom of the supporting plate, a movable plate is fixedly connected to the top of the jacket, and a cross plate is fixedly connected to the top of the movable plate, and the cross plate is slidably arranged in the groove.

[0011] Preferably, a cross bar is rotatably connected in the bearing plate via a bearing, threaded rods are rotatably connected on both sides of the groove via bearings, the threaded rods are threadedly connected to the cross plate, the top of the threaded rods extends into the bearing plate, a bevel gear set is fixedly installed between the threaded rod and the cross bar, a motor is fixedly installed on one side of the bearing plate, and the output end of the motor is fixedly connected to one end of the cross bar.

[0012] Compared with the prior art, the utility model provides a vacuum sizing box for extruder pipes, which has the following beneficial effects:

[0013] 1. The utility model sets a positioning block and a positioning groove in the alarm device, so that when the sizing sleeve and the port of the discharge box match, the positioning block enters the positioning groove and triggers the pressure sensor, thereby causing the buzzer to alarm, and then determining that the output port of the discharge box is concentric with the inlet of the sizing sleeve, thereby solving the problem that during the traction process of the traction tube, the output port of the extruder and the inlet of the sizing sleeve are affected by the diameter of the pipe, resulting in a deviation between the two, thereby causing the pipe to bend during molding.

[0014] 2. The utility model sets the clamping sleeve on the clamping device so that when the bearing plate moves to the connection between the pipe plastic and the traction tube, the two clamping sleeves move towards each other, thereby shaping the pipe plastic and the traction tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the overall structural diagrams of the utility model;

[0016] Figure 2 This is the second schematic diagram of the overall structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the pushing device of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the clamping device of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the alarm device of the utility model.

[0020] In the figure: 1. discharge box; 2. pipe plastic; 3. sizing sleeve; 4. traction tube; 5. pushing device; 6. alarm device; 51. servo cylinder; 52. bearing plate; 61. buzzer; 62. pressure sensor; 53. bearing block; 54. movable rod; 55. telescopic rod; 63. positioning block; 64. positioning groove; 7. clamping device; 71. clamping sleeve; 72. movable plate; 73. cross plate; 74. cross rod; 75. threaded rod; 76. bevel gear set; 77. motor. 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] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a vacuum sizing box for extruder pipes.

[0023] See also Figure 1-5 A vacuum sizing box for extruder pipes comprises a discharge box 1, a pipe plastic 2 installed inside the discharge box 1, a sizing sleeve 3 matching the discharge box 1, and a traction tube 4 installed in the sizing sleeve 3. A pushing device 5 is installed at the top and bottom of the outer periphery of the discharge box 1. An alarm device 6 is installed between the discharge box 1 and the sizing sleeve 3. The pushing device 5 comprises a servo cylinder 51 and a bearing plate 52. The operation of the servo cylinder 51 drives the bearing plate 52 to move toward the sizing sleeve 3. The alarm device 6 comprises a buzzer 61 and a pressure sensor 62, so that when the bearing plate 52 moves toward the sizing sleeve 3, the bearing plate 52 applies pressure to the pressure sensor 62 to start the buzzer 61.

[0024] Specifically, by setting the pushing device 5, the supporting plate 52 is moved toward the sizing sleeve 3. When the outlet end of the discharge box 1 coincides with the inlet of the sizing sleeve 3, the supporting plate 52 contacts the pressure sensor 62 and triggers the buzzer 61 to start, thereby indicating to the staff that there is no problem. This solves the problem that during the traction process of the traction tube 4, the output port of the extruder and the inlet of the sizing sleeve 3 are affected by the caliber of the pipe, resulting in a deviation between the two, thereby causing the pipe to bend during molding.

[0025] Furthermore, for the above-mentioned pushing device 5, the servo cylinder 51 is fixedly installed on the outer periphery of the discharge box 1, a bearing block 53 is fixedly connected to one side of the bearing plate 52, a movable rod 54 is fixedly connected to the bottom of one side of the bearing block 53, the movable rod 54 extends into the discharge box 1 and is slidably connected to the discharge box 1, a telescopic rod 55 is fixedly connected to the top of one side of the bearing block 53, and one end of the telescopic rod 55 is fixedly connected to the output end of the servo cylinder 51;

[0026] Specifically, by setting the movable rod 54, the problem of the telescopic rod 55 being difficult to support the bearing block 53 during the movement of the bearing block 53 is prevented. The servo cylinder 51 drives the telescopic rod 55 to operate, thereby controlling the positioning block 63 to move toward the positioning groove 64, and then performing alignment detection on the position between the discharge box 1 and the sizing sleeve 3.

[0027] Furthermore, for the alarm device 6, both ends of one side of the carrier plate 52 are fixedly connected with positioning blocks 63, both ends of one side of the sizing sleeve 3 are provided with positioning grooves 64, the positioning blocks 63 are consistent with the positioning grooves 64, the pressure sensor 62 is fixedly installed in the positioning grooves 64, and the pressure sensor 62 is electrically connected to the buzzer 61;

[0028] Specifically, by setting the positioning block 63 and the positioning groove 64, when the sizing sleeve 3 and the discharge box 1 match, the positioning block 63 enters the positioning groove 64 and triggers the pressure sensor 62, thereby causing the buzzer 61 to alarm, thereby determining that the output port of the discharge box 1 is concentric with the inlet of the sizing sleeve 3.

[0029] Further, for the above-mentioned clamping device 7, two groups of clamping devices 7 are installed between the sizing sleeve 3 and the discharge box 1, and the two groups of clamping devices 7 are respectively installed at the bottom of the two bearing plates 52. The clamping device 7 includes a jacket 71, and a groove is opened at the bottom of the bearing plate 52. A movable plate 72 is fixedly connected to the top of the jacket 71, and a transverse plate 73 is fixedly connected to the top of the movable plate 72. The transverse plate 73 is slidably arranged in the groove;

[0030] A cross bar 74 is rotatably connected to the bearing plate 52, and threaded rods 75 are rotatably connected to the two sides of the groove through bearings. The threaded rods 75 are threadedly connected to the cross plate 73, and the top of the threaded rods 75 extends into the bearing plate 52. A bevel gear set 76 is fixedly installed between the threaded rods 75 and the cross bar 74. A motor 77 is fixedly installed on one side of the bearing plate 52, and the output end of the motor 77 is fixedly connected to one end of the cross bar 74.

[0031] Specifically, when the supporting plate 52 moves to the connection point between the tubular plastic 2 and the traction tube 4, the motor 77 drives the cross bar 74 to rotate, and through the setting of the bevel gear set 76, drives the threaded rod 75 to rotate, and through the threaded connection between the threaded rod 75 and the cross plate 73, drives the movable plate 72 and the jacket 71 to move downward, so that the two jackets 71 move towards each other, and then press-fit the tubular plastic 2 and the traction tube 4.

[0032] Working principle: When in use, the servo cylinder 51 drives the telescopic rod 55 to operate, thereby controlling the positioning block 63 to move toward the positioning groove 64. When the carrying plate 52 moves to the connection between the pipe plastic 2 and the traction tube 4, the motor 77 drives the cross bar 74 to rotate, and through the setting of the bevel gear set 76, drives the threaded rod 75 to rotate, and through the threaded connection between the threaded rod 75 and the cross plate 73, drives the movable plate 72 and the jacket 71 to move downward, so that the two jackets 71 move toward each other, and then press-fit connection is performed between the pipe plastic 2 and the traction tube 4. The servo cylinder 51 continues to drive the carrying plate 52 to move toward the sizing sleeve 3. Through the setting of the positioning block 63 and the positioning groove 64, when the sizing sleeve 3 and the port of the discharge box 1 are matched, the positioning block 63 enters the positioning groove 64 and triggers the pressure sensor 62, so that the buzzer 61 alarms, and then determines that the output port of the discharge box 1 is concentric with the inlet of the sizing sleeve 3.

[0033] 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. A vacuum sizing box for extruder pipes, comprising a discharge box (1), a pipe plastic (2) installed inside the discharge box (1), a sizing sleeve (3) matching the discharge box (1), and a traction pipe (4) installed in the sizing sleeve (3), characterized in that: A pushing device (5) is installed at the top and bottom of the outer periphery of the discharge box (1); an alarm device (6) is installed between the discharge box (1) and the sizing sleeve (3); the pushing device (5) comprises a servo cylinder (51) and a bearing plate (52); the servo cylinder (51) operates to drive the bearing plate (52) to move in the direction of the sizing sleeve (3); the alarm device (6) comprises a buzzer (61) and a pressure sensor (62); when the bearing plate (52) moves in the direction of the sizing sleeve (3), the bearing plate (52) applies pressure to the pressure sensor (62) to activate the buzzer (61).

2. The vacuum sizing box for extruder pipe according to claim 1, characterized in that: The servo cylinder (51) is fixedly installed on the outer periphery of the discharge box (1); a bearing block (53) is fixedly connected to one side of the bearing plate (52); a movable rod (54) is fixedly connected to the bottom of one side of the bearing block (53); the movable rod (54) extends into the discharge box (1) and is slidably connected to the discharge box (1); a telescopic rod (55) is fixedly connected to the top of one side of the bearing block (53); one end of the telescopic rod (55) is fixedly connected to the output end of the servo cylinder (51).

3. The vacuum sizing box for extruder pipe according to claim 2, characterized in that: Both ends of one side of the carrier plate (52) are fixedly connected with positioning blocks (63), both ends of one side of the sizing sleeve (3) are provided with positioning grooves (64), the positioning blocks (63) are matched with the positioning grooves (64), the pressure sensor (62) is fixedly installed in the positioning grooves (64), and the pressure sensor (62) is electrically connected with the buzzer (61).

4. The vacuum sizing box for extruder pipe according to claim 1, characterized in that: Two groups of clamping devices (7) are installed between the sizing sleeve (3) and the discharge box (1), and the two groups of clamping devices (7) are respectively installed at the bottom of two supporting plates (52). The clamping device (7) includes a jacket (71), and a groove is provided at the bottom of the supporting plate (52). A movable plate (72) is fixedly connected to the top of the jacket (71), and a transverse plate (73) is fixedly connected to the top of the movable plate (72). The transverse plate (73) is slidably arranged in the groove.

5. The vacuum sizing box for extruder pipe according to claim 4, characterized in that: A cross bar (74) is rotatably connected in the bearing plate (52) through a bearing, threaded rods (75) are rotatably connected on both sides of the groove through bearings, the threaded rods (75) are threadedly connected to the cross plate (73), the top of the threaded rod (75) extends into the bearing plate (52), a bevel gear set (76) is fixedly installed between the threaded rod (75) and the cross bar (74), a motor (77) is fixedly installed on one side of the bearing plate (52), and the output end of the motor (77) is fixedly connected to one end of the cross bar (74).

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