Extruder for polyurethane glue stick production
By using a rubber sleeve and hinged rod connection structure, combined with the design of an adjustment groove and adjustment block, the problem of flange connection misalignment in extruders used for polyurethane glue rod production was solved, achieving stable die connection and simplified installation, thus improving molding efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN YOUJUN RUBBER & PLASTIC PRODUCTS CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-05-29
AI Technical Summary
Existing extruders used for producing polyurethane rods are prone to misalignment during flange connection, which affects the molding effect.
The design employs a rubber sleeve and hinged rod connection structure, combined with an adjustment groove and adjustment block, to achieve an adjustable angle connection between the die and the mounting cylinder. The die is fixed by the support of screws and connecting plates, simplifying the installation and disassembly process.
It improves the connection stability and molding effect of the die, simplifies the installation and disassembly process, and enhances the performance of the extruder.
Smart Images

Figure CN224296516U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extruder technology, specifically to an extruder for producing polyurethane glue rods. Background Technology
[0002] Extruders are a type of plastic machinery. Screw extruders rely on the pressure and shearing force generated by the rotation of the screw to fully plasticize and uniformly mix materials, which are then formed through a die.
[0003] When producing polyurethane sticks, the use of an extruder achieves rapid molding and improves production efficiency. However, when using existing extruders, the die is connected to the extruder using a flange. During installation and disassembly, tools are required to achieve a tight connection. During the connection process, turning the bolts can easily cause misalignment between the flanges, affecting the molding of the polyurethane sticks. Utility Model Content
[0004] The purpose of this invention is to provide an extruder for producing polyurethane glue rods, in order to solve the problem mentioned in the background art that during the connection process, rotating the bolts can easily cause misalignment between the flanges, affecting the molding of the polyurethane glue rods.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an extruder for producing polyurethane glue rods, comprising a frame, a conveying cylinder, and a discharge port. The conveying cylinder is disposed on the surface of the frame, and the discharge port is connected to the conveying cylinder via a passage. An installation cylinder is inserted into the surface of the discharge port, and an installation frame is fixedly connected to the outer surface of the discharge port. A screw is connected through the surface of the installation frame. A die is disposed on the surface of the installation cylinder, and a connecting plate is fixedly connected to the outer surface of the installation cylinder. A rubber sleeve is disposed between the installation cylinder and the die. A hinge rod is connected to the surface of the die and the installation cylinder. An adjustment groove is formed on the surface of the die, and an adjustment block is slidably connected to the inner side of the adjustment groove. Limit blocks are fixedly connected to both sides of the adjustment block, and an adjustment rod is connected through the surface of the adjustment block.
[0006] Preferably, the discharge port is connected to the mounting cylinder and the die passage, and the mounting brackets are arranged in two opposing groups on the outer surface of the discharge port, with the two groups of mounting brackets distributed in opposite directions.
[0007] Preferably, the mounting bracket has an "L" shaped cross-section, the connecting plate has screw holes on its surface, and the screw rod passes through the screw holes on the surface of the mounting bracket and the connecting plate for threaded connection.
[0008] Preferably, the mounting cylinder is snapped onto the surface of the discharge port by a connecting plate and a mounting bracket, and the two ends of the rubber sleeve are fixedly connected to the surfaces of the mounting cylinder and the die.
[0009] Preferably, the die is telescopically connected by a rubber sleeve and a mounting cylinder, and the die and the mounting cylinder are rotatably connected by a hinge rod.
[0010] Preferably, the adjusting groove penetrates the surface of the die, and a sliding groove is provided on the inner side of the adjusting groove. The limiting block is slidably connected to the adjusting block and the sliding groove.
[0011] Preferably, the adjusting rod is connected to the adjusting block by a thread, and the adjusting rod passes through the adjusting block and abuts against the surface of the mounting cylinder.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. By inserting the discharge port and the mounting cylinder, the support effect of the die at the discharge port is achieved. Through the connection of the mounting cylinder and the connecting plate, and the snap-fit of the connecting plate and the mounting bracket, the connection of the screw and the screw hole on the connecting plate is achieved to realize the support and limitation effect of the die at the discharge port, and facilitate its disassembly and assembly, thereby improving its connection performance and function.
[0014] 2. By connecting the die and the hinge rod, the rotational connection between the die and the mounting cylinder is achieved under the action of the hinge rod. Through the connection of the adjusting groove and the adjusting block, and the connection of the adjusting block and the adjusting rod, the connection angle between the die and the mounting cylinder can be controlled, thereby improving the application range and molding effect of the die. Attached Figure Description
[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;
[0016] Figure 2 This is a three-dimensional schematic diagram of the discharge port structure of this utility model;
[0017] Figure 3 This utility model Figure 2 Exploded three-dimensional schematic diagram of the connection structure between the discharge port and the die;
[0018] Figure 4 This utility model Figure 3 A three-dimensional sectional view of the connection structure between the central die and the mounting cylinder;
[0019] Figure 5 This utility model Figure 4 A magnified structural diagram of point A in the middle.
[0020] In the diagram: 1. Frame; 2. Conveying cylinder; 3. Discharge port; 31. Mounting frame; 32. Screw; 4. Die; 41. Mounting cylinder; 42. Connecting plate; 43. Rubber sleeve; 44. Hinge rod; 5. Adjusting groove; 51. Adjusting block; 52. Limiting block; 53. Adjusting rod. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-5 One embodiment provided by this utility model:
[0023] An extruder for producing polyurethane glue rods includes a frame 1, a conveying cylinder 2, and a discharge port 3. The conveying cylinder 2 is disposed on the surface of the frame 1. The discharge port 3 and the conveying cylinder 2 are connected by a passageway. An installation cylinder 41 is inserted into the surface of the discharge port 3. An installation frame 31 is fixedly connected to the outer surface of the discharge port 3. A screw 32 is connected through the surface of the installation frame 31. A die 4 is disposed on the surface of the installation cylinder 41. A connecting plate 42 is fixedly connected to the outer surface of the installation cylinder 41. A rubber sleeve 43 is disposed between the installation cylinder 41 and the die 4. A hinge rod 44 is connected to the surface of the die 4 and the installation cylinder 41. An adjustment groove 5 is opened on the surface of the die 4. An adjustment block 51 is slidably connected to the inner side of the adjustment groove 5. Limit blocks 52 are fixedly connected to both sides of the adjustment block 51. An adjustment rod 53 is connected through the surface of the adjustment block 51. By using the frame 1 and the conveying cylinder 2, the operation effect of mixing, melting, and extruding the raw materials for producing polyurethane glue rods is achieved. The frame 1 and the conveying cylinder 2 are existing products, and their principles are existing technology, which will not be described in detail here.
[0024] Furthermore, the discharge port 3 is connected to the die 4 via the mounting cylinder 41. The mounting brackets 31 are arranged in two opposing groups on the outer surface of the discharge port 3, and the two groups of mounting brackets 31 are distributed in opposite directions. Through the connection between the discharge port 3 and the die 4, the die 4 is used to achieve the effect of molding polyurethane glue rods.
[0025] Furthermore, the mounting bracket 31 has an "L" shaped cross-section, and the surface of the connecting plate 42 is provided with screw holes. The screw 32 passes through the screw holes on the surface of the mounting bracket 31 and the connecting plate 42 for threaded connection. Through the connection between the discharge port 3 and the mounting bracket 31, and with the snap-fit between the connecting plate 42 and the mounting bracket 31, and through the connection between the screw 32 and the screw holes on the connecting plate 42, the supporting effect of the connecting plate 42 in the position of action within the mounting bracket 31 is achieved, thereby achieving the connection and supporting effect of the mounting cylinder 41 at the discharge port 3.
[0026] Furthermore, the mounting cylinder 41 is snapped onto the surface of the discharge port 3 via the connecting plate 42 and the mounting bracket 31. The two ends of the rubber sleeve 43 are fixedly connected to the surfaces of the mounting cylinder 41 and the die 4. Through the connection between the mounting cylinder 41 and the rubber sleeve 43, the expansion and contraction connection between the die 4 and the mounting cylinder 41 is achieved under the action of the rubber sleeve 43.
[0027] Furthermore, the die 4 is telescopically connected to the mounting cylinder 41 via the rubber sleeve 43, and the die 4 and the mounting cylinder 41 are rotatably connected via the hinge rod 44. Through the connection between the die 4 and the hinge rod 44, the angle between the die 4 and the mounting cylinder 41 can be controlled under the action of the hinge rod 44.
[0028] Furthermore, the adjusting groove 5 penetrates the surface of the die 4, and a sliding groove is provided on the inner side of the adjusting groove 5. The limiting block 52 is slidably connected to the adjusting block 51 and the sliding groove. Through the action of the sliding groove in the adjusting groove 5, the sliding angle of the adjusting block 51 in the adjusting groove 5 is limited and supported under the sliding connection between the sliding groove and the limiting block 52.
[0029] Furthermore, the adjusting rod 53 is connected to the adjusting block 51 through a thread. The adjusting rod 53 passes through the adjusting block 51 and abuts against the surface of the mounting cylinder 41. The rotational connection between the adjusting rod 53 and the adjusting block 51 enables the adjustment of the working length of the adjusting rod 53. Under the abutting contact between the adjusting rod 53 and the mounting cylinder 41, the angle between the die 4 and the mounting cylinder 41 is controlled.
[0030] Working principle: When installing the mounting cylinder 41, insert the mounting cylinder 41 into the discharge port 3, rotate the mounting cylinder 41 to allow the connecting plate 42 to enter the mounting frame 31. With the connection of the screw 32 and the screw hole on the connecting plate 42, the position of the mounting cylinder 41 on the discharge port 3 is fixed. When it is necessary to adjust the working angle of the die 4, rotate the adjusting rod 53 to change the working length of the adjusting rod 53, so that the connection angle of the die 4 on the mounting cylinder 41 changes. Under the action of the rubber sleeve 43, the sealed passage between the die 4 and the mounting cylinder 41 is guaranteed. When the working angle of the die 4 changes, the discharge position can be adjusted, improving its application range and performance.
[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An extruder for producing polyurethane glue rods, comprising a frame (1), a conveying cylinder (2), and a discharge port (3), characterized in that: The conveying cylinder (2) is set on the surface of the frame (1). The discharge port (3) is connected to the conveying cylinder (2). An installation cylinder (41) is inserted into the surface of the discharge port (3). An installation frame (31) is fixedly connected to the outer surface of the discharge port (3). A screw (32) is connected through the surface of the installation frame (31). A die (4) is set on the surface of the installation cylinder (41). A connecting plate (42) is fixedly connected to the outer surface of the installation cylinder (41). A rubber sleeve (43) is set between the installation cylinder (41) and the die (4). A hinge rod (44) is connected to the surface of the die (4) and the installation cylinder (41). An adjustment groove (5) is opened on the surface of the die (4). An adjustment block (51) is slidably connected to the inner side of the adjustment groove (5). Limit blocks (52) are fixedly connected to both sides of the adjustment block (51). An adjustment rod (53) is connected through the surface of the adjustment block (51).
2. The extruder for producing polyurethane glue rods according to claim 1, characterized in that: The discharge port (3) is connected to the die (4) through the mounting cylinder (41). The mounting brackets (31) are arranged in two opposing groups on the outer surface of the discharge port (3), and the two groups of mounting brackets (31) are distributed in opposite directions.
3. The extruder for producing polyurethane glue rods according to claim 1, characterized in that: The mounting bracket (31) has an "L" shaped cross section, and the surface of the connecting plate (42) is provided with screw holes. The screw (32) is threaded through the screw holes on the surface of the mounting bracket (31) and the connecting plate (42).
4. The extruder for producing polyurethane glue rods according to claim 1, characterized in that: The mounting cylinder (41) is snapped onto the surface of the discharge port (3) by the connecting plate (42) and the mounting bracket (31), and the two ends of the rubber sleeve (43) are fixedly connected to the surfaces of the mounting cylinder (41) and the die (4).
5. An extruder for producing polyurethane glue rods according to claim 1, characterized in that: The die (4) is telescopically connected by a rubber sleeve (43) and a mounting cylinder (41), and the die (4) and the mounting cylinder (41) are rotatably connected by a hinge rod (44).
6. The extruder for producing polyurethane glue rods according to claim 1, characterized in that: The adjustment groove (5) penetrates the surface of the die (4), and a sliding groove is provided on the inner side of the adjustment groove (5). The limiting block (52) is slidably connected to the sliding groove through the adjustment block (51).
7. An extruder for producing polyurethane glue rods according to claim 1, characterized in that: The adjusting rod (53) is connected to the adjusting block (51) by a thread, and the adjusting rod (53) passes through the adjusting block (51) and abuts against the surface of the mounting cylinder (41).