Extruder with easily replaceable die

Abstract

The utility model discloses an extruding machine convenient to change mould relates to extruding machine technical field, and specifically relates to extruding machine technical field, including base and the top surface extruding machine body of being located at the base, the one side fixed mounting of extruding machine body outer surface is close to the discharge gate and is equipped with support frame, the one side of support frame is rotatably connected with the pivot, and one end fixed mounting of pivot is equipped with switching frame. The utility model discloses an extruding machine convenient to change mould, in actual work, rotates the worm, can drive the worm gear rotation, and the worm gear will drive the pivot and switching frame rotation, and will make multiple mounting frame rotate to the discharge gate of extruding machine body in turn, makes mounting frame and fixed plate coincide, and rotates bidirectional screw rod, makes two fixed frame close to each other, and the both sides of fixed plate and mounting frame will be inserted into the inside of mounting frame, until two fixed frame clamps mounting frame and fixed plate, thereby can simplify the process of changing extrusion mould, to improve the efficiency of changing extrusion mould.

Description

Technical Field

[0001] This utility model relates to the field of extrusion press technology, and in particular to an extrusion press that is easy to change molds. Background Technology

[0002] Extrusion presses can be divided into plastic extrusion presses and metal extrusion presses according to their application fields. Plastic extrusion presses mainly consist of three parts: a screw, a cylindrical cage shell, and a cone. A flexible coupling connects the screw shaft to the output shaft of the reducer. They are used to produce plastic pipes, profiles, films, cable sheaths, etc.

[0003] The shape of the extrusion die in current plastic extruders is fixed, and the current extrusion die is connected to the discharge pipe of the plastic extruder by a large number of bolts. When changing the extrusion die, it is necessary to remove multiple bolts in sequence, and when installing a new extrusion die, it is also necessary to install multiple bolts in sequence, which makes the replacement of the extrusion die cumbersome. Therefore, in order to solve the above defects, the inventor proposes an extruder that facilitates die replacement. Utility Model Content

[0004] The main purpose of this invention is to provide an extruder that facilitates die replacement, which can effectively solve the problem of the cumbersome process of changing the extrusion die in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An extruder that facilitates mold replacement includes a base and an extruder body disposed on the top surface of the base. A support frame is fixedly installed on the outer surface of the extruder body near the discharge port. A rotating shaft is rotatably connected to one side of the support frame, and a switching frame is fixedly installed at one end of the rotating shaft.

[0007] Multiple mounting frames are fixedly installed on the outer surface of the switching frame, and a connection port is opened in the middle of one side of the outer surface of the mounting frame. An extrusion mold is provided inside the connection port. A worm gear is fixedly installed at the end of the rotating shaft away from the switching frame. A worm is rotatably connected to the outer surface of the support frame on the side of the worm gear, and the worm meshes with the worm gear.

[0008] Preferably, the outer side of the mounting frame has multiple mounting holes, and all of the mounting holes communicate with the connection port. The outer side of the extrusion mold has multiple fixing holes, and each fixing hole corresponds to one of the mounting holes.

[0009] Preferably, a fixing groove is provided on one side of the outer surface of the mounting frame, and a rubber sealing ring is fixedly installed inside the fixing groove.

[0010] Preferably, a fixing box is fixedly installed on the outer top surface of the base on one side of the extrusion outlet of the extruder body. A bidirectional threaded rod is rotatably connected to one side of the inside of the fixing box, and a sliding rod is fixedly installed on the other side of the inside of the fixing box. Two fixing frames are threadedly connected to the outer surface of the bidirectional threaded rod, and both fixing frames are slidably connected to the sliding rod.

[0011] Preferably, one end of the bidirectional threaded rod extends to the outside of the fixed box, and a second rotating handle is fixedly installed at the end of the bidirectional threaded rod extending to the outside of the fixed box. The outer surface of the bidirectional threaded rod is provided with two opposite threads.

[0012] Preferably, a fixing plate is fixedly installed on the outer surface of the extruder body on one side of the discharge port, and a first rotating handle is fixedly installed at one end of the worm gear.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model discloses an extruder that facilitates die replacement. By setting a switching frame, in actual operation, rotating the worm gear drives the worm wheel to rotate, which in turn drives the rotating shaft and the switching frame to rotate. This causes multiple mounting frames to rotate sequentially to the discharge port of the extruder body, making the mounting frames coincide with the fixed plate. Rotating the bidirectional threaded rod brings the two fixed frames closer together, and the sides of the fixed plate and the mounting frames are inserted into the interior of the mounting frames until the two fixed frames clamp the mounting frames and the fixed plate. This simplifies the process of changing extrusion dies and improves the efficiency of changing extrusion dies. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the extruder body of this utility model.

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of section A in the middle;

[0018] Figure 4 This is a schematic diagram of the mounting frame structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the fixing groove structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the fixing box structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the fixing plate structure of this utility model.

[0022] In the diagram: 1. Base; 2. Extruder body; 3. Fixing plate; 201. Support frame; 202. Worm gear; 203. First rotating handle; 204. Rotating shaft; 205. Worm wheel; 206. Switching frame; 207. Mounting frame; 208. Extrusion die; 2081. Fixing hole; 2082. Connection port; 2071. Mounting hole; 2072. Fixing groove; 2073. Rubber sealing ring; 101. Fixing box; 102. Bidirectional threaded rod; 103. Slide rod; 104. Fixing frame; 105. Second rotating handle. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] This utility model discloses an extruder that facilitates mold replacement, such as... Figure 1-7 As shown, the device includes a base 1 and an extruder body 2 located on the top surface of the base 1. The extruder body 2 is powered by an external power source. When the extruder body 2 is powered on, the user feeds plastic granules or powder into the screw groove between the screw and the barrel through the hopper. The screw rotates and conveys the material forward along the screw groove. The electric heating coil or electromagnetic heater outside the barrel heats up to the plastic melting point. The shearing force generated by the screw rotation breaks up the solid plastic, and the frictional heat further melts it, eventually forming a uniform melt. The molten plastic passes through the channels of the extrusion die 208 to form the desired cross-sectional shape.

[0025] A support frame 201 is fixedly installed on the outer surface of the extruder body 2 near the discharge port. A rotating shaft 204 is rotatably connected to one side of the support frame 201. A switching frame 206 is fixedly installed at one end of the rotating shaft 204. When the rotating shaft 204 rotates, it will drive the switching frame 206 to rotate.

[0026] Multiple mounting frames 207 are fixedly installed on the outer surface of the switching frame 206. When the switching frame 206 rotates, it will drive the multiple mounting frames 207 to rotate, and then the multiple mounting frames 207 will rotate sequentially to the discharge port of the extruder body 2.

[0027] Furthermore, a connection port 2082 is provided in the middle of one side of the outer surface of the mounting frame 207, and an extrusion mold 208 is provided inside the connection port 2082. Multiple mounting frames 207 are provided so that multiple different extrusion molds 208 can be installed, so that different extrusion molds 208 can be replaced according to actual needs.

[0028] A worm gear 205 is fixedly installed at the end of the rotating shaft 204 away from the switching frame 206. A worm 202 is rotatably connected to the outer surface of the support frame 201 on one side of the worm gear 205, and the worm 202 meshes with the worm gear 205. A fixing plate 3 is fixedly installed on the outer surface of the extruder body 2 on one side of the discharge port. The diameter of the fixing plate 3 is the same as the diameter of the mounting frame 207. A first rotating handle 203 is fixedly installed at one end of the worm 202. When the user holds and rotates the first rotating handle 203, the worm 202 can be rotated, which in turn drives the worm gear 205 and the rotating shaft 204 to rotate.

[0029] As the rotating worm 202 drives the worm wheel 205 and the rotating shaft 204 to rotate, multiple mounting frames 207 will rotate sequentially until they coincide with the fixed plate 3. Then, the molten plastic flows through the flow channel of the extrusion die 208 to form the required cross-sectional shape. When the mounting frame 207 rotates to coincide with the fixed plate 3, its extrusion die 208 will block the discharge port of the extruder body 2. The diameter of the extrusion die 208 is the same as the diameter of the discharge port of the extruder body 2. Therefore, when the mounting frame 207 coincides with the fixed plate 3, the extrusion die 208 will coincide with the discharge port of the extruder body 2.

[0030] The outer side of the mounting frame 207 has multiple mounting holes 2071, and all of the mounting holes 2071 communicate with the connection port 2082. The outer side of the extrusion mold 208 has multiple fixing holes 2081, and the multiple fixing holes 2081 correspond one-to-one with the multiple mounting holes 2071. The extrusion mold 208 is placed inside the connection port 2082, and the multiple fixing holes 2081 correspond one-to-one with the multiple mounting holes 2071. Then, the bolt is inserted from the mounting hole 2071 and rotated until the bolt is inserted into the fixing hole 2081. The extrusion mold 208 and the mounting frame 207 can then be assembled.

[0031] A fixing groove 2072 is provided on one side of the outer surface of the mounting frame 207. A rubber sealing ring 2073 is fixedly installed inside the fixing groove 2072. The rubber sealing ring 2073 is made of fluororubber. When the mounting frame 207 is rotated to coincide with the fixing plate 3, the rubber sealing ring 2073 will contact one side of the fixing plate 3, thereby improving the sealing effect between the mounting frame 207 and the fixing plate 3.

[0032] A fixed box 101 is fixedly installed on the outer top surface of the base 1, located on one side of the discharge port of the extruder body 2. A bidirectional threaded rod 102 is rotatably connected to one side of the interior of the fixed box 101, and a slide rod 103 is fixedly installed on the other side of the interior of the fixed box 101. Two fixed frames 104 are threadedly connected to the outer surface of the bidirectional threaded rod 102, and both fixed frames 104 are slidably connected to the slide rod 103. One end of the bidirectional threaded rod 102 extends to the outside of the fixed box 101, and a second rotating handle 105 is fixedly installed at the end of the bidirectional threaded rod 102 extending to the outside of the fixed box 101. The outer surface of the bidirectional threaded rod 102 is provided with two opposite threads. The user holds and rotates the second rotating handle 105 to drive the bidirectional threaded rod 102 to rotate. Through the two opposite threads on the outer surface of the bidirectional threaded rod 102, the two fixed frames 104 can move along the slide rod 103 in opposite directions.

[0033] Once the mounting frame 207 and the fixing plate 3 are aligned, the user can rotate the bidirectional threaded rod 102 to bring the two fixing frames 104 closer together until the mounting frame 207 and the fixing plate 3 are clamped and fixed, thereby enhancing the stability of the mounting frame 207 and the fixing plate 3 during operation.

[0034] The working principle of this utility model is as follows: the user puts plastic granules or powder into the screw groove between the screw and the barrel through the hopper. The screw rotates and conveys the material forward along the screw groove. The electric heating coil or electromagnetic heater outside the barrel heats up to the melting point of the plastic. The shearing force generated by the rotation of the screw breaks the solid plastic. The frictional heat further melts it and finally forms a uniform melt. The molten plastic passes through the flow channel of the extrusion die 208 to form the desired cross-sectional shape.

[0035] When it is necessary to change different extrusion dies 208, the user can rotate the first handle 203 to drive the worm gear 202 to rotate. The rotating worm gear 202 will drive the worm wheel 205 and the rotating shaft 204 to rotate, thereby causing multiple mounting frames 207 to overlap with the fixing plate 3 in sequence. After the mounting frames 207 overlap with the fixing plate 3, the user rotates the second handle 105 to rotate the bidirectional threaded rod 102, causing the two fixing frames 104 to move closer to each other until the overlapping mounting frames 207 are clamped and fixed to the fixing plate 3.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An extruder for easy die replacement, comprising a base (1) and an extruder body (2) disposed on the top surface of the base (1), characterized in that: A support frame (201) is fixedly installed on the outer surface of the extruder body (2) near the discharge port. A rotating shaft (204) is rotatably connected to one side of the support frame (201). A switching frame (206) is fixedly installed at one end of the rotating shaft (204). Multiple mounting frames (207) are fixedly installed on the outer surface of the switching frame (206), and a connection port (2082) is opened in the middle of one side of the outer surface of the mounting frame (207). An extrusion mold (208) is provided inside the connection port (2082). A worm gear (205) is fixedly installed at the end of the rotating shaft (204) away from the switching frame (206). A worm (202) is rotatably connected to the outer surface of the support frame (201) on the side of the worm gear (205), and the worm (202) meshes with the worm gear (205).

2. The extrusion press with easy die replacement according to claim 1, characterized in that: The outer side of the mounting frame (207) is provided with a plurality of mounting holes (2071), and the plurality of mounting holes (2071) are all connected to the connection port (2082). The outer side of the extrusion mold (208) is provided with a plurality of fixing holes (2081), and the plurality of fixing holes (2081) correspond one-to-one with the plurality of mounting holes (2071).

3. The extruder for easy die replacement according to claim 2, characterized in that: A fixing groove (2072) is provided on one side of the outer surface of the mounting frame (207), and a rubber sealing ring (2073) is fixedly installed inside the fixing groove (2072).

4. The extrusion press for easy die replacement according to claim 1, characterized in that: A fixed box (101) is fixedly installed on the outer top surface of the base (1) on one side of the discharge port of the extruder body (2). A bidirectional threaded rod (102) is rotatably connected to one side of the interior of the fixed box (101), and a slide rod (103) is fixedly installed on the other side of the interior of the fixed box (101). Two fixed frames (104) are threadedly connected to the outer surface of the bidirectional threaded rod (102), and both fixed frames (104) are slidably connected to the slide rod (103).

5. An extruder for easy die replacement according to claim 4, characterized in that: One end of the bidirectional threaded rod (102) extends to the outside of the fixed box (101), and a second rotating handle (105) is fixedly installed on the end of the bidirectional threaded rod (102) extending to the outside of the fixed box (101). The outer surface of the bidirectional threaded rod (102) is provided with two opposite threads.

6. An extruder for easy die replacement according to claim 1, characterized in that: A fixing plate (3) is fixedly installed on the outer surface of the extruder body (2) on one side of the discharge port, and a first rotating handle (203) is fixedly installed at one end of the worm (202).

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