Glue injection equipment for stator of screw pump

Abstract

A screw pump stator glue injection device relates to the technical field of glue injection devices and comprises a rack, a mold basin and a stator mold are arranged on the lower portion of the rack, the stator mold is located on one side of the mold basin, and the bottom of the mold basin is communicated with the stator mold through a pipeline; a sliding rail and a pressure head assembly are arranged on the upper portion of the machine frame, and the pressure head assembly is connected to the sliding rail in a sliding mode and can slide to the position above the mold basin along the sliding rail to be matched with the mold basin. By changing the depth of the mold basin to increase the capacity of the mold basin and improving the pressure head, the pressure head can move in the horizontal direction, so that the production of larger stators can be coped with while the addition of rubber materials in the mold basin is not influenced, and the universality is high.

Description

Technical Field

[0001] The utility model relates to the technical field of glue injection equipment, and particularly relates to a glue injection equipment for a screw pump stator. Background Art

[0002] A screw pump is a rotary positive-displacement pump. It relies on the mutual meshing of a screw and a bushing to generate a volume change between the suction chamber and the discharge chamber to convey materials. It is an internally meshed closed screw pump. Its main working components consist of a bushing (stator) with a double-headed spiral cavity and a single-headed spiral screw (rotor) meshing with it inside the stator cavity.

[0003] Regarding the stator of the screw pump, it is composed of a rubber inner lining and a metal outer cylinder sleeved thereon. The main production process of the rubber inner lining includes first assembling the stator mold, then injecting the refined rubber material into the mold and waiting for it to form. When injecting glue, it is necessary to first transfer the refined rubber material into the glue injection equipment.

[0004] Among them, the basic structure of the glue injection equipment includes: a mold basin and a pressure head arranged above the mold basin. The mold basin is connected to the stator mold. The pressure head presses down on the mold basin above it, so that the glue inside enters the stator mold to complete the glue injection. However, this glue injection method has the following problems:

[0005] When producing larger-sized stators, the required amount of glue will be correspondingly larger, but the capacity in the mold basin is limited and cannot cope. If it is dealt with by increasing the diameter of the mold basin, the diameter of the pressure head needs to be increased accordingly. At this time, the pressure of the pressure head will decrease, affecting the glue injection efficiency and effect. If the depth of the mold basin is increased, the distance between it and the pressure head will be correspondingly shortened, affecting the glue loading efficiency in the mold basin. Content of the Utility Model

[0006] I. Technical Problems to be Solved

[0007] In view of the deficiencies of the prior art, the utility model provides a glue injection equipment for a screw pump stator. By changing the depth of the mold basin to increase its capacity and improving the pressure head so that it can move horizontally, it can cope with the production of larger-sized stators without affecting the addition of glue in the mold basin, and has strong versatility.

[0008] II. Specific Technical Solutions

[0009] The glue injection equipment for a screw pump stator is used to inject glue into a stator mold, and includes a frame. A mold basin and a stator mold are arranged at the lower part of the frame. The stator mold is located on one side of the mold basin. The bottom of the mold basin is connected to the stator mold through a pipeline. A slide rail and a pressure head assembly are arranged at the upper part of the frame. The pressure head assembly is slidably connected to the slide rail, and the pressure head assembly can slide along the slide rail to the upper part of the mold basin to cooperate with the mold basin.

[0010] Implementation principle, working principle:

[0011] When injecting glue using this solution, first, it is necessary to inject glue into the mold basin. When injecting glue, the pressing head assembly moves away from directly above the mold basin through the slide rail. During this process, since the pressing head assembly moves away from directly above the mold basin, it will not interfere with the glue injection process of the mold basin; in this case, the depth of the mold basin can be increased to increase the glue capacity to better adapt to the glue injection of large and medium-sized stators; after the glue injection of the mold basin is completed, the pressing head assembly returns above the mold basin through the slide rail, and then the pressing head assembly presses down to cooperate with the mold basin, so that the glue enters the stator mold through the pipeline to complete the glue injection.

[0012] Preferably: The two slide rails are arranged in parallel, and the cross-section of the slide rail is T-shaped; the pressing head assembly includes a mounting seat, and both ends of the mounting seat are slidably connected to the two slide rails respectively; The beneficial effect of this preference is that the mounting seat is installed on two parallel slide rails, so that the force on the slide rails and the mounting seat will be more balanced; among them, the cross-section of the slide rail is T-shaped, so that when the mounting seat and the slide rail cooperate, the mounting seat can withstand the forces on both the upper and lower sides, which is beneficial to the force and force application of the pressing head assembly.

[0013] Preferably: A driving motor is provided on one side of the mounting seat where the two slide rails face away from each other; the pressing head assembly further includes a press and a pressing head arranged in the middle of the mounting seat, the piston rod of the press is fixedly connected to the pressing head, and the pressing head cooperates with the mold basin; The beneficial effect of this preference is that the driving motor drives the mounting seat to move, which is convenient for controlling the moving distance and position of the mounting seat more precisely; when the mounting seat is in place, the press drives the pressing head into the mold basin to apply pressure to the glue in the mold basin, so that it enters the stator mold through the pipeline, which is simple and convenient.

[0014] Preferably: The press is a hydraulic cylinder or a gas-liquid booster cylinder.

[0015] Preferably: Guide columns are arranged at intervals around the pressing head, and guide sleeves are arranged at intervals around the mold basin, and the guide columns and the guide sleeves cooperate with each other; The beneficial effect of this preference is that when the pressing head and the mold basin cooperate, through the setting of the guide columns and the guide sleeves, the pressing head and the mold basin can be accurately matched.

[0016] Preferably: The stator mold is detachably arranged on the frame, and hook ears are arranged at both ends of the stator mold, and the hook ears are used to lift the stator mold; The beneficial effect of this preference is that due to the large volume and weight of the large and medium-sized stator molds, the detachable connection method is convenient for the installation of the stator mold. Among them, the hook ears of the stator mold can be used to lift and transfer the stator mold using a crane, and the labor intensity will be lower.

[0017] Preferably, the pipe is provided with an inclination angle on one side of the mold basin, and the included angle of the inclination angle is 30°-45°; the beneficial effect of this preference is that the inclination angle provided by the pipe at the bottom of the mold basin is more conducive to the glue entering the stator mold from the pipe.

[0018] The beneficial effects of the present utility model are as follows:

[0019] 1. In this solution, the mounting seat and the pressing head assembly thereon can move away from and close to directly above the mold basin through the slide rail. This structure is convenient for adding glue to the mold basin, which is simple and convenient; adopting this structure can increase the depth of the mold basin and thus improve the glue capacity of the mold basin, which is suitable for the production of large and medium-sized stators.

[0020] 2. In this solution, the setting of the slide rail can bear the reaction force during the downward pressing when the pressing head in the pressing head assembly presses down, with higher strength; through the setting of the driving motor, it can better drive the movement of the pressing head assembly, and the control of the pressing head assembly is more convenient.

[0021] 3. Through the cooperation of the guide post, guide sleeve and driving motor, it is convenient for the pressing head to cooperate with the mold basin more precisely and conveniently when in use. Description of the Drawings

[0022] Figure 1 It is a front structural schematic diagram of the glue injection device for the screw pump stator of the present utility model.

[0023] Figure 2 It is a side sectional schematic diagram of the glue injection device for the screw pump stator of the present utility model.

[0024] Description of the reference numerals: frame 1, slide rail 11, mold basin 2, pipe 21, guide sleeve 22, stator mold 3, hook ear 31, pressing head assembly 4, mounting seat 41, driving motor 42, press 43, pressing head 44, guide post 45. Detailed Description of the Preferred Embodiment

[0025] The following describes in detail the preferred embodiments of the present utility model with reference to the drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present utility model.

[0026] Such as Figure 1 and Figure 2As shown in the figure: A glue injection device for a screw pump stator includes a frame 1. On both sides below the frame 1, a mold basin 2 and a stator mold 3 are respectively arranged. Among them, the stator mold 3 is detachably installed on the frame 1 through bolts. Hook ears 31 are also welded on both sides of the stator mold 3. When the weight and volume of the stator mold 3 are large, it can be connected with the hook ears 31 through a hoisting rope, and the whole stator mold 3 can be lifted off, which is simple, convenient and has lower labor intensity.

[0027] Among them, the mold basin 2 is used to hold glue. A pipeline 21 is installed at the bottom of the mold basin 2. One end of the pipeline 21 is located at the bottom of the mold basin 2, and the other end is communicated with the glue injection hole of the stator mold 3. When the glue is punched by the press head assembly 4, it will enter the stator mold 3 through the pipeline. Specifically, the side of the pipeline 21 connected to the mold basin 2 is inclined, and the angle with the horizontal direction is specifically 30° - 45°.

[0028] During implementation, a slide rail 11 is installed above the frame 1. Among them, the slide rail 11 is two parallel slide rails 11 with a T-shaped cross-section. A press head assembly 4 is slidably connected to the slide rail 11. The press head assembly 4 can slide above the mold basin 2 along the slide rail 11. More precisely, it moves horizontally from directly above the mold basin 2. The advantage of this is that the cooperation between the press head assembly 4 and the slide rail 11 can avoid affecting the mold basin 2.

[0029] During implementation, the press head assembly 4 includes a mounting seat 41, a driving motor 42, a press 43 and a press head 44. The two ends of the mounting seat 41 are respectively matched with the two slide rails 11. Among them, the driving motor 42 is installed on one side of the mounting seat 41. The driving motor 42 drives the mounting seat 41 to slide along the slide rail 11. The cooperation method between the driving motor 42 and the slide rail 11 is the prior art and will not be elaborated here;

[0030] Among them, the press 43 is a hydraulic pump or a gas-liquid booster pump. In this embodiment, it is a hydraulic pump. The press 43 is fixed to the middle of the mounting seat 41 by bolts. The piston rod of the press 43 is located at the lower end of the mounting seat 41. The end of the piston rod of the press 43 is connected to the press head 44 by bolts. Among them, the press head 44 cooperates with the mold basin 2;

[0031] During implementation, in order to make the press head 44 and the mold basin 2 cooperate better, guide columns 45 are arranged around the press head 44. Specifically, there are four guide columns 45, which are evenly distributed around the press head 44; among them, guide sleeves 22 that cooperate with the guide columns 45 are also evenly arranged around the mold basin 2; when the press head 44 presses down, the guide columns 45 will extend into the guide sleeves 22 to prevent the press head 44 from deviating and affecting glue injection.

[0032] The beneficial effects of this solution are:

[0033] In this solution, the mounting base 41 and the pressing head assembly 4 thereon are moved away from and close to directly above the mold basin 2 through the slide rail 11, which is convenient for adding rubber material into the mold basin 2, simple and convenient; adopting this structure can increase the depth of the mold basin 2 and thus improve the rubber capacity of the mold basin 2, which is suitable for the production of large and medium-sized stators; in this solution, the setting of the slide rail 11 can bear the reaction force when the pressing head 44 in the pressing head assembly 4 presses down, with higher strength; through the setting of the driving motor 42, it can better drive the movement of the pressing head assembly 4, and the control of the pressing head assembly 4 is more convenient; through the cooperation of the guide post 45, the guide sleeve 22 and the driving motor 42, it is convenient for the pressing head 44 to be more precisely and conveniently matched with the mold basin 5 when in use; through the setting of the hook ear 31, it can be transported by a crane, and the labor intensity of the operator is lower.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims

1. Screw pump stator glue injection equipment, characterized in that: It includes a frame (1). A die basin (2) and a stator mold (3) are arranged at the lower part of the frame (1). The stator mold (3) is located on one side of the die basin (2). The bottom of the die basin (2) is communicated with the stator mold (3) through a pipeline (21). At the upper part of the frame (1), a slide rail (11) and a press head assembly (4) are arranged. The press head assembly (4) is slidably connected to the slide rail (11), and the press head assembly (4) can slide along the slide rail (11) to be directly above the die basin (2) to cooperate with the die basin (2).

2. The screw pump stator glue injection device according to claim 1, characterized in that: The two slide rails (11) are arranged in parallel, and the cross section of the slide rail (11) is T-shaped. The press head assembly (4) includes a mounting seat (41), and the two ends of the mounting seat (41) are respectively slidably connected to the two slide rails (11).

3. The screw pump stator glue injection device according to claim 2, characterized in that: A driving motor (42) is arranged on the side of the mounting seat (41) opposite to the two slide rails (11). The press head assembly (4) further includes a press (43) and a press head (44) arranged in the middle of the mounting seat (41). The piston rod of the press (43) is fixedly connected to the press head (44), and the press head (44) cooperates with the die basin (2).

4. The screw pump stator glue injection device according to claim 3, characterized in that: The press (43) is a hydraulic cylinder or a gas-liquid intensifying cylinder.

5. The screw pump stator glue injection device according to claim 3, characterized in that: Guide columns (45) are arranged at intervals around the press head (44), and guide sleeves (22) are arranged at intervals around the die basin (2). The guide columns (45) and the guide sleeves (22) cooperate with each other.

6. The screw pump stator glue injection device according to claim 1, characterized in that: The stator mold (3) is detachably arranged on the frame (1). Hook ears (31) are arranged at both ends of the stator mold (3), and the hook ears (31) are used to lift the stator mold (3).

7. The screw pump stator glue injection device according to claim 1, characterized in that: The pipeline (21) is provided with an inclination angle on one side of the die basin (2), and the included angle of the inclination angle is 30° - 45°.

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