Adjustable silicone rubber die head extrusion structure

Abstract

The utility model relates to an adjustable silicone rubber die head extrusion structure. A barrel cavity of a discharging barrel is internally provided with a discharging opening used for forming a rubber strip; a rod body of the driving assembly is provided with an adjusting assembly used for adjusting the discharging opening. The supporting device comprises a supporting assembly arranged in the discharging barrel, and a telescopic assembly used for stretching out and drawing back in the supporting assembly is arranged in the supporting assembly. The telescopic plate can be moved out of the containing groove in the supporting plate, then the telescopic plate can be moved out of the extending cylinder, then the threaded rod is driven by the rotary knob to rotate, the threaded sleeve plates located at the two sections of threads on the threaded rod can move front and back, and the opening size of the discharging opening can be adjusted through the limiting strip; and therefore, the rubber strips with different widths can be rapidly manufactured, the extrusion barrel does not need to be replaced, and meanwhile, the shaped rubber strips can be prevented from being broken through a supporting plate and a telescopic plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of silicone rubber production, especially to adjustable silicone rubber die head extrusion structure. BACKGROUND

[0002] Silicone rubber extruder is a basic equipment of rubber industry, mainly for producing rubber strip, and silicone rubber processing into sealing strip and flange circle has good performance in drying equipment, which is more than three times the service life of ordinary rubber sealing element. For example, the silicone rubber sealing strip extrusion device shown in Chinese patent application No. CN202420028281.0, the screw extruder body top is equipped with feeding cylinder, the screw extruder body discharge end is fixedly provided with discharge port, the discharge port outer part movably sheaths elastic mechanism, the discharge port inner part matches and inserts head die assembly, and the discharge port and the head die assembly are equipped with limiting structure.

[0003] However, when the head die assembly is used to extrude the rubber strip, the discharge port of the die body is fixed and cannot be changed, and when different widths of rubber strips need to be extruded, different die bodies need to be removed from the feeding cylinder and replaced, so that the same width of rubber strip cannot be quickly extruded. UTILITY MODEL CONTENTS

[0004] To solve the problem that the discharge port of the die body cannot be changed, and when different widths of rubber strips need to be extruded, different die bodies need to be removed from the feeding cylinder and replaced, so that the same width of rubber strip cannot be quickly extruded, the utility model provides the following technical scheme:

[0005] An adjustable silicone rubber die head extrusion structure, comprising an extrusion cylinder, a screw extrusion device for rotating and extruding hot silicone rubber is arranged in the cylinder cavity of the extrusion cylinder, a discharge cylinder is arranged on the right side of the extrusion cylinder, an adjusting device is arranged in the discharge cylinder, and a supporting device for supporting the rubber strip is arranged in the discharge cylinder.

[0006] A discharge port for forming the rubber strip is formed in the cylinder cavity of the discharge cylinder.

[0007] The adjusting device comprises a driving assembly arranged in the discharge cylinder for rotation, an adjusting assembly for adjusting the discharge port is arranged on the rod body of the driving assembly, and the adjusting assembly has two, and the movement directions of the two adjusting assemblies are opposite.

[0008] The supporting device comprises a supporting assembly arranged in the discharge cylinder, and a telescopic assembly for telescoping in the supporting assembly is arranged in the supporting assembly.

[0009] Further, the right end of the discharging barrel is fixedly provided with an extension barrel for shielding the discharging port.

[0010] Further, the screw extrusion device comprises a rotating rod arranged in the extrusion barrel for rotation, a screw blade for stirring and extruding the hot silicone rubber in the extrusion barrel is arranged on the rod body of the rotating rod, and a motor for driving the rotating rod to rotate is arranged at the left end of the rotating rod.

[0011] Further, the driving assembly comprises a threaded rod arranged in the discharging barrel for driving the two adjusting assemblies to move in opposite directions, and a knob for driving the threaded rod to rotate is fixedly arranged at the front end of the threaded rod.

[0012] Further, the adjusting assembly comprises a threaded sleeve plate arranged in the discharging barrel for threaded connection with the threaded rod, and a limiting strip for adjusting the discharging port is fixedly arranged at the bottom end of the threaded sleeve plate.

[0013] Further, the supporting assembly comprises a supporting plate fixedly arranged at the right end of the discharging barrel, and a receiving groove for receiving the telescopic assembly is arranged in the plate body of the supporting plate.

[0014] Further, the telescopic assembly comprises a telescopic plate arranged in the receiving groove for telescopic movement, and a limiting plate for preventing the telescopic plate from moving out of the receiving groove is fixedly arranged at the left end of the telescopic plate.

[0015] Further, the top end of the extrusion barrel is provided with a feeding hopper for adding hot silicone rubber into the extrusion barrel, and the bottom end of the extrusion barrel is fixedly provided with a supporting leg for supporting the extrusion barrel.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] By arranging the adjusting device and the supporting device, when the rubber strips of different widths are made, the telescopic plate can be moved out of the receiving groove in the supporting plate, the telescopic plate can be moved to the outside of the extension barrel, the threaded sleeve plates at the two threaded portions on the threaded rod can be moved forward and backward by rotating the threaded rod through the knob, the opening size of the discharging port can be adjusted through the limiting strip, the rubber strips of different widths can be quickly made, the extrusion barrel does not need to be replaced, and the supporting plate and the telescopic plate can be used to prevent the shaped rubber strip from being broken. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0019] Figure 2 It is a sectional view of the extrusion barrel of the present application;

[0020] Figure 3 The drawing tube sectional view of the utility model;

[0021] Figure 4 The adjusting device structure schematic view of the utility model;

[0022] Figure 5 The support device structure schematic view of the utility model.

[0023] In the drawing, the component name list represented by each figure mark is as follows:

[0024] 100-extrusion cylinder;

[0025] 200-spiral extrusion device, 210-motor, 220-rotary rod, 230-spiral blade;

[0026] 300-discharge tube, 301-discharge port, 302-extension tube;

[0027] 400-adjusting device, 410-driving assembly, 411-knob, 412-threaded rod, 420-adjusting assembly, 421-threaded sleeve plate, 422-limiting strip;

[0028] 500-support device, 510-support assembly, 511-support plate, 512-receiving groove, 520-telescopic assembly, 521-telescopic plate, 522-limiting plate;

[0029] 001-feed hopper, 002-support leg. DETAILED DESCRIPTION

[0030] The preferred specific embodiments for realizing the utility model are described in detail below, and clear and complete descriptions are made in conjunction with the drawings.

[0031] Please refer to Figures 1-5 , the utility model provides a kind of adjustable silicon rubber die head extrusion structure.

[0032] Including extrusion cylinder 100, spiral extrusion device 200 for rotating extrusion to hot silicon rubber is arranged in the cylinder cavity of extrusion cylinder 100, discharge tube 300 is arranged at the right side of extrusion cylinder 100, adjusting device 400 is arranged in discharge tube 300, the support device 500 for supporting rubber strip is arranged in the discharge tube 300.

[0033] The top end of extrusion cylinder 100 is provided with feed hopper 001 for adding hot silicon rubber into extrusion cylinder 100, to facilitate the heated silicon rubber along feed hopper 001 to extrusion cylinder 100 is added;The bottom end of extrusion cylinder 100 is fixedly installed with support leg 002 for supporting extrusion cylinder 100, to facilitate the fixation of extrusion cylinder 100 by support leg 002.

[0034] The spiral extrusion device 200 comprises a rotating rod 220 arranged in the extrusion barrel 100 for rotation, the left end of the rotating rod 220 is connected with the barrel body of the extrusion barrel 100 through a bearing, so as to facilitate the rotation of the rotating rod 220; the rod body of the rotating rod 220 is provided with a spiral blade 230 for stirring and extruding the hot silicone rubber in the extrusion barrel 100, so as to facilitate the movement of the hot silicone rubber at the left end of the extrusion barrel 100 to the right by the spiral blade 230, along the discharge barrel 300, and forming a rubber strip; the left end of the rotating rod 220 is provided with a motor 210 for driving the rotating rod 220 to rotate, and the shaft end of the output shaft of the motor 210 is connected with the left end of the rotating rod 220 through a shaft coupling, so that under the working of the motor 210, the spiral blade 230 on the rotating rod 220 can be driven to rotate, and the hot silicone rubber at the left end of the extrusion barrel 100 can be moved to the right, along the discharge barrel 300, and a rubber strip can be formed.

[0035] The barrel cavity of the discharge barrel 300 is provided with a discharge port 301 for forming a rubber strip, and the right end of the discharge barrel 300 is fixedly installed with an extension barrel 302 for shielding the discharge port 301.

[0036] The adjusting device 400 comprises a driving assembly 410 arranged in the discharge barrel 300 for rotation, the rod body of the driving assembly 410 is provided with an adjusting assembly 420 for adjusting the discharge port 301, and the adjusting assembly 420 has two, and the movement directions of the two adjusting assemblies 420 are opposite.

[0037] The driving assembly 410 comprises a threaded rod 412 arranged in the discharge barrel 300 for driving the two adjusting assemblies 420 to move in opposite directions, the rod body of the threaded rod 412 is provided with two sections of threads which are front and back symmetrical, and the screw directions of the two sections of threads are opposite, so that under the rotation of the threaded rod 412, the adjusting assemblies 420 located at the two sections of threads on the threaded rod 412 can move forward and backward, and the opening size of the discharge port 301 can be adjusted; the front end of the threaded rod 412 is fixedly installed with a knob 411 for driving the threaded rod 412 to rotate.

[0038] The adjusting assembly 420 comprises a threaded sleeve plate 421 arranged in the discharge barrel 300 for threaded connection with the threaded rod 412, the bottom end of the threaded sleeve plate 421 is fixedly installed with a limiting strip 422 for adjusting the discharge port 301, and the limiting strip 422 can move at the front and back ends of the discharge port 301, so that when different width rubber strips are made, the threaded rod 412 can be driven to rotate by the knob 411, the threaded sleeve plates 421 located at the two sections of threads on the threaded rod 412 can move forward and backward, the opening size of the discharge port 301 can be adjusted by the limiting strip 422, and different width rubber strips can be quickly made without replacing the discharge barrel 300.

[0039] The supporting device 500 comprises a supporting assembly 510 arranged in the discharging barrel 300, and a telescopic assembly 520 arranged in the supporting assembly 510 and capable of being telescopically arranged in the supporting assembly 510.

[0040] The supporting assembly 510 comprises a supporting plate 511 fixedly arranged at the right end of the discharging barrel 300, and a receiving groove 512 is arranged in the plate body of the supporting plate 511 and used for receiving the telescopic assembly 520, and the cross section of the receiving groove 512 is in a stepped shape, so that the telescopic assembly 520 can be limited by the stepped receiving groove 512, and the telescopic plate 521 can be moved out of the receiving groove 512 in the supporting plate 511, and then the telescopic plate 521 can be moved to the outside of the extending barrel 302, so that the extruded rubber strip of the discharging port 301 can be moved along the supporting plate 511 and the telescopic plate 521 to the right, and the shaped rubber strip can be prevented from being broken.

[0041] The telescopic assembly 520 comprises a telescopic plate 521 arranged in the receiving groove 512 and capable of being telescopically arranged, and a limiting plate 522 is fixedly arranged at the left end of the telescopic plate 521 and used for preventing the telescopic plate 521 from moving out of the receiving groove 512, so that when the rubber strip with different widths is made, the telescopic plate 521 can be moved out of the receiving groove 512 in the supporting plate 511, and then the telescopic plate 521 can be moved to the outside of the extending barrel 302, and then the threaded rod 412 is driven to rotate by the knob 411, so that the threaded sleeve plate 421 located at the two threaded portions of the threaded rod 412 can be moved forward and backward, the opening size of the discharging port 301 can be adjusted by the limiting strip 422, and then the rubber strip with different widths can be quickly made, the discharging barrel 300 does not need to be replaced, and the supporting plate 511 and the telescopic plate 521 can be used to prevent the shaped rubber strip from being broken.

[0042] Based on the above content and the drawings, those skilled in the art can understand and implement the present application. In addition, any non-creative modification of the present application made by those skilled in the art without creative labor still belongs to the protection scope of the present application.

Claims

1. An adjustable silicone rubber die extrusion structure, comprising an extrusion cylinder (100), characterized in that: The extrusion cylinder (100) is provided with a spiral extrusion device (200) for rotary extrusion of hot silicone rubber inside the cylinder cavity. The extrusion cylinder (100) is provided with a discharge cylinder (300) on the right side. The discharge cylinder (300) is provided with an adjustment device (400) inside the discharge cylinder (300) and a support device (500) for supporting the rubber strip inside the discharge cylinder (300). The discharge cylinder (300) has a discharge port (301) inside its cavity for forming the rubber strip; The adjusting device (400) includes a drive assembly (410) disposed inside the discharge cylinder (300) for rotation. The rod of the drive assembly (410) is provided with an adjusting assembly (420) for adjusting the discharge port (301). There are two adjusting assemblies (420), and the two adjusting assemblies (420) move in opposite directions. The support device (500) includes a support assembly (510) disposed in the discharge cylinder (300), and the support assembly (510) is provided with a telescopic assembly (520) for telescopic movement within the support assembly (510).

2. The adjustable silicone rubber die extrusion structure according to claim 1, characterized in that: An extension tube (302) for blocking the discharge port (301) is fixedly installed at the right end of the discharge tube (300).

3. The adjustable silicone rubber die extrusion structure according to claim 1, characterized in that: The spiral extrusion device (200) includes a rotating rod (220) disposed inside the extrusion cylinder (100) for rotation. The rotating rod (220) is provided with spiral blades (230) for stirring and extruding the hot silicone rubber inside the extrusion cylinder (100). The left end of the rotating rod (220) is provided with a motor (210) for driving the rotating rod (220) to rotate.

4. The adjustable silicone rubber die extrusion structure according to claim 1, characterized in that: The drive assembly (410) includes a threaded rod (412) disposed inside the discharge cylinder (300) for driving two adjustment assemblies (420) to move in opposite directions. A knob (411) for driving the threaded rod (412) to rotate is fixedly installed at the front end of the threaded rod (412).

5. The adjustable silicone rubber die extrusion structure according to claim 4, characterized in that: The adjustment assembly (420) includes a threaded sleeve plate (421) disposed inside the discharge cylinder (300) for threaded connection with the threaded rod (412), and a limiting strip (422) for adjusting the discharge port (301) is fixedly installed at the bottom end of the threaded sleeve plate (421).

6. The adjustable silicone rubber die extrusion structure according to claim 1, characterized in that: The support assembly (510) includes a support plate (511) fixedly installed at the right end of the discharge cylinder (300), and the support plate (511) has a storage groove (512) for storing the telescopic assembly (520) inside the plate.

7. The adjustable silicone rubber die extrusion structure according to claim 6, characterized in that: The telescopic assembly (520) includes a telescopic plate (521) disposed in the storage slot (512) for telescopic movement, and a limiting plate (522) is fixedly installed at the left end of the telescopic plate (521) to prevent the telescopic plate (521) from moving out of the storage slot (512).

8. The adjustable silicone rubber die extrusion structure according to claim 1, characterized in that: The top end of the extrusion cylinder (100) is provided with a feed hopper (001) for adding hot silicone rubber into the extrusion cylinder (100), and the bottom end of the extrusion cylinder (100) is fixedly installed with a support leg (002) for supporting the extrusion cylinder (100).

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