Screw pump stator glue injection machine

Abstract

The utility model discloses a screw pump stator glue injection machine which comprises a machine frame, a groove plate is arranged on a glue injection table of the machine frame, a second air cylinder is arranged at the end, away from a glue bag, of the groove plate, a push plate is fixedly arranged at the movable end of the second air cylinder, and the air cylinder, the push plate and a glue discharging opening of the glue bag are coaxially arranged. A ventilation groove is formed in the side, close to the groove plate, of the push plate. The utility model relates to the technical field of screw pump production, when the glue injection machine is used, a stator is placed in a groove of a groove plate, a second air cylinder is started, a push plate can be pushed to be close to the stator under the driving of the second air cylinder, and the stator is slowly pushed to a glue discharging opening of a glue bag until the stator is tightly attached to a sealing gasket of the glue discharging opening of the glue bag. At the moment, the hydraulic cylinder can be driven to drive the plug rod to press downwards, rubber in the rubber bag is extruded into the inner cavity of the stator, the connection mode replaces traditional threaded connection, and the stator can be installed and disassembled more quickly during rubber injection.

Description

Technical Field

[0001] The utility model relates to the technical field of screw pump production, in particular to a screw pump stator glue injection machine. Background Art

[0002] View Technology

[0003] The screw pump is a single screw transport pump. Its main working parts are the eccentric spiral screw (called the rotor) and the screw bushing (called the stator) with a double-line spiral surface on the inner surface. Its working principle is that when the motor drives the pump shaft to rotate, the screw rotates around its own axis on the one hand, and rolls along the inner surface of the bushing on the other hand, thus forming a sealed chamber of the pump. When the stator of the screw pump is produced, a glue injection machine is required to inject glue into the inner cavity of the stator. The glue injection machine mainly includes a rubber bag, a hydraulic cylinder and a plug rod. The rubber is placed in the rubber bag, and the plug rod is pressed by the hydraulic cylinder so that the rubber in the rubber bag is squeezed into the inner cavity of the stator. However, most glue injection machines use two support rods to support the stator, and screw the stator to the glue discharge port of the rubber bag. The stator needs to be removed after the glue is injected, which makes the operation of this screw connection method more cumbersome and reduces the work efficiency. To this end, we provide a screw pump stator glue injection machine to solve the above problems. Utility Model Content

[0004] In order to solve the above problems, that is, to solve the problems raised by the above background technology, the utility model proposes a screw pump stator glue injection machine, comprising a frame, a glue bag is arranged on the table top of the frame, a hydraulic cylinder is installed on the frame above the glue bag, a plug rod is fixedly arranged on the movable end of the hydraulic cylinder, a groove plate is arranged on the glue injection table of the frame, and a second cylinder is arranged at the end of the groove plate away from the rubber bag, a push plate is fixedly arranged on the movable end of the second cylinder, the cylinder, the push plate and the glue discharge port of the rubber bag are coaxially arranged, and a ventilation groove is opened on the side of the push plate close to the groove plate.

[0005] Preferably, a plurality of limiting plates are fixedly provided on the outer wall of the rubber bag at the rubber discharge port, and the plurality of limiting plates are arranged in a ring array with the rubber discharge port of the rubber bag as the center.

[0006] Preferably, two vertical plates are fixedly provided on the injection table of the frame, and the tops of the two vertical plates are slidably connected with rectangular tubes, and the two rectangular tubes are respectively fixed to the two sides of the bottom of the groove plate, and the outer walls of the rectangular tubes are threadedly connected with bolts, and the threaded ends of the bolts are pressed against the outer walls of the vertical plates.

[0007] Preferably, a plurality of arc-shaped grooves are provided inside the groove of the groove plate, and balls are provided in the inner cavities of the arc-shaped grooves for rolling.

[0008] Preferably, a first cylinder is installed on the frame at a side of the rubber bag away from the groove plate, a movable end of the first cylinder is connected to the rubber bag, and the rubber bag is slidably connected to the table top of the frame.

[0009] The beneficial technical effect of the utility model is as follows: when the glue injection machine is in use, the stator is placed in the groove of the slot plate, and the second cylinder is started. Under the drive of the second cylinder, the push plate can be pushed close to the stator, and the stator is slowly pushed toward the glue discharge port of the rubber bag until the stator and the sealing gasket of the glue discharge port of the rubber bag are tightly fitted. At this time, the hydraulic cylinder can be driven to drive the plug rod to press down, and the rubber in the rubber bag is squeezed into the inner cavity of the stator. After the glue injection is completed, the second cylinder drives the push plate to shrink, and the stator can be removed at this time. This connection method replaces the traditional threaded connection, and can complete the installation and disassembly of the stator during glue injection more quickly, and has certain practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the front cross-sectional structure of the utility model is shown.

[0011] Figure 2 The utility model shows a structural schematic diagram of the push plate.

[0012] Figure 3 The cross-sectional structure diagram of the slot plate of the utility model is shown.

[0013] Figure numerals: 1, frame; 2, rubber bag; 3, hydraulic cylinder; 4, plug rod; 5, first cylinder; 6, groove plate; 7, second cylinder; 8, push plate; 9, limit plate; 10, vertical plate; 11, rectangular tube; 12, bolt; 13, air vent; 14, ball. DETAILED DESCRIPTION

[0014] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0015] The utility model proposes a screw pump stator glue injection machine, comprising a frame 1, a rubber bag 2 is arranged on the table of the frame 1, a hydraulic cylinder 3 is installed on the frame 1 above the rubber bag 2, a plug rod 4 is fixedly arranged on the movable end of the hydraulic cylinder 3, the hydraulic cylinder 3 can drive the plug rod 4 to move toward the rubber bag 2, and squeeze the rubber in the rubber bag 2 to be discharged and enter the inner cavity of the stator, a groove plate 6 is arranged on the glue injection table of the frame 1, the groove plate 6 can support the stator, and a second cylinder 7 is arranged at one end of the groove plate 6 away from the rubber bag 2, and the movable end of the second cylinder 7 is fixedly arranged. A push plate 8 is provided on the stator, and the cylinder, the push plate 8 and the rubber discharge port of the rubber bag 2 are coaxially arranged. Driven by the second cylinder 7, the push plate 8 can be pushed close to the stator, and the stator can be slowly pushed toward the rubber discharge port of the rubber bag 2 until the stator and the sealing gasket of the rubber discharge port of the rubber bag 2 are tightly fitted. At this time, the hydraulic cylinder 3 can be driven to drive the plug rod 4 to press down, and the rubber in the rubber bag 2 is squeezed into the inner cavity of the stator. A ventilation groove 13 is provided on the side of the push plate 8 close to the groove plate 6. When the rubber enters the inner cavity of the stator, the gas inside the stator can be discharged in the ventilation groove 13.

[0016] Specifically, a plurality of limit plates 9 are fixedly provided on the outer wall of the glue bag 2 at the glue discharge port. The plurality of limit plates 9 are arranged in a circular array with the glue discharge port of the glue bag 2 as the center. The design of the limit plates 9 can prevent the glue injection end of the stator from being offset.

[0017] Specifically, two vertical plates 10 are fixedly provided on the injection table of the frame 1, and rectangular cylinders 11 are slidably connected to the tops of the two vertical plates 10. The two rectangular cylinders 11 are respectively fixed to the two sides of the bottom of the slot plate 6, and the outer wall of the rectangular cylinder 11 is threadedly connected with bolts 12. The threaded end of the bolt 12 is tightly pressed against the outer wall of the vertical plate 10. The design purpose is to adjust the height of the slot plate 6, and then adjust the axial center height of the stator during injection when the stator diameter is different.

[0018] Specifically, a plurality of arc grooves are provided inside the groove of the groove plate 6, and balls 14 are provided in the inner cavity of the arc grooves for rolling. The design purpose is to convert the sliding friction between the stator and the groove plate 6 into rolling friction when the second cylinder 7 drives the stator to approach the rubber bag 2 through the push plate 8, thereby increasing the service life.

[0019] Specifically, a first cylinder 5 is installed on the side of the frame 1 located away from the groove plate 6 of the rubber bag 2. The movable end of the first cylinder 5 is connected to the rubber bag 2, and the rubber bag 2 is slidably connected to the table of the frame 1. The design purpose is to facilitate the user to inject rubber into the rubber bag 2.

[0020] According to the personnel in this field, all the electrical parts and components in this case are universal standard parts or components known to the technical personnel in this field, and their structures and principles can be known to the technical personnel through technical manuals or through conventional experimental methods. The models are compatible with this solution and can operate normally. All the electrical parts in this case are connected to the power supply adapted to them through wires, and according to the actual situation, a suitable controller is selected to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection is completed in the working order of each electrical component. The detailed connection means are well-known technologies in this field and will not be explained in the electrical control.

[0021] Working principle: When the glue injection machine is in use, the first cylinder 5 can be used to drive the rubber bag 2 to move outward, so that the rubber can be injected into the rubber bag 2 for heat smelting (in the prior art, the rubber can be heat smelted in the rubber bag 2, so it will not be described in detail here). Then, the bolt 12 is screwed according to the diameter of the stator, and the longitudinal movement of the slot plate 6 is achieved through the limit of the vertical plate 10 and the rectangular tube 11, thereby adjusting the axis height of the stator during glue injection, so that its axis height can be consistent with the axis height of the glue discharge port of the rubber bag 2. At this time, the stator is placed in the groove of the slot plate 6. The second cylinder 7 is started. Driven by the second cylinder 7, the push plate 8 can be pushed close to the stator, and the stator is slowly pushed toward the discharge port of the rubber bag 2 until the stator and the sealing gasket of the discharge port of the rubber bag 2 are tightly fitted. At this time, the hydraulic cylinder 3 can be driven to drive the plug rod 4 to press down, and the rubber in the rubber bag 2 is squeezed into the inner cavity of the stator. After the injection is completed, the second cylinder 7 drives the push plate 8 to shrink, and the stator can be removed. This connection method replaces the traditional threaded connection and can complete the installation and disassembly of the stator during injection more quickly.

[0022] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0023] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0025] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0026] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A screw pump stator glue injection machine, comprising a frame (1), a glue bag (2) is arranged on the table of the frame (1), a hydraulic cylinder (3) is installed on the frame (1) above the glue bag (2), a plug rod (4) is fixedly arranged at the movable end of the hydraulic cylinder (3), and is characterized in that: A slot plate (6) is arranged on the glue injection platform of the frame (1), and a second cylinder (7) is arranged at one end of the slot plate (6) away from the glue bag (2), a push plate (8) is fixedly arranged at the movable end of the second cylinder (7), the cylinder, the push plate (8) and the glue discharge port of the glue bag (2) are coaxially arranged, and a ventilation groove (13) is opened on one side of the push plate (8) close to the slot plate (6).

2. A screw pump stator glue injection machine according to claim 1, characterized in that: A plurality of limiting plates (9) are fixedly arranged on the outer wall of the rubber bag (2) at the rubber discharge port, and the plurality of limiting plates (9) are arranged in a ring array with the rubber discharge port of the rubber bag (2) as the center.

3. The screw pump stator glue injection machine according to claim 1, characterized in that: Two vertical plates (10) are fixedly arranged on the injection molding table of the frame (1), and the tops of the two vertical plates (10) are slidably connected with rectangular cylinders (11). The two rectangular cylinders (11) are respectively fixed to the two sides of the bottom of the groove plate (6), and the outer walls of the rectangular cylinders (11) are threadedly connected with bolts (12), and the threaded ends of the bolts (12) are tightly pressed against the outer walls of the vertical plates (10).

4. The screw pump stator glue injection machine according to claim 1, characterized in that: A plurality of arc-shaped grooves are provided inside the groove of the groove plate (6), and balls (14) are rolledly arranged in the inner cavity of the arc-shaped grooves.

5. The screw pump stator glue injection machine according to claim 1, characterized in that: The frame (1) is provided with a first cylinder (5) on a side of the rubber bag (2) away from the groove plate (6); a movable end of the first cylinder (5) is connected to the rubber bag (2); and the rubber bag (2) is slidably connected to the table top of the frame (1).

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