Side-pulling type door opening mechanism of vacuum pressure pouring tank

Abstract

The utility model relates to a side pulling type door opening mechanism of a vacuum pressure pouring tank, and belongs to the technical field of vacuum pressure pouring equipment. According to the structure, a tank body is located on the horizontal plane through a base, and the axis of the tank body is horizontally arranged; a beam is arranged at the top of an opening of the tank body, the length direction of the beam is perpendicular to the axis of the tank body, a walking mechanism is slidably connected to the beam, and the bottom of the walking mechanism is connected with the tank cover through a sliding hanger plate device. Push-and-pull air cylinders are arranged on the two sides of the opening end of the can body respectively, lug plates are arranged on the two sides of the can cover respectively, and when the can cover and the can body are coaxially matched in a sealed mode, the push-and-pull air cylinders and the lug plates are clamped and matched in a tensioning mode. The side-pulling type door opening mechanism realizes the left-right translation opening mode of the tank door, not only saves the axial external space of the tank body, but also is simple in locking and good in sealing effect.

Description

Technical Field

[0001] The utility model relates to a side-pull type door opening mechanism for a vacuum pressure casting tank, belonging to the technical field of vacuum pressure casting equipment. Background Art

[0002] The existing pressure tanks mostly adopt the rotating side door opening method, which has the following disadvantages: First, this opening method occupies a large area in the axial direction of the tank body. During the opening process, the products to be processed cannot be placed in front of the tank cover, which affects the transportation cycle; Second, the connecting structure has many parts at the rotating arm and the hanging arm, and the structure is complicated. During the opening process, the rotating arm bears the overall weight of the tank cover. Excessive load is easy to cause damage, shortening the service life of the overall pressure tank; Third, the locking steps of the tank cover and the tank body are cumbersome, which not only has high manufacturing costs, but also makes subsequent repair and maintenance difficult. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a side-pull door opening mechanism for a vacuum pressure casting tank, which realizes a left-right translation opening mode of the tank door, not only saves the axial external space of the tank body, but also has simple locking and good sealing effect.

[0004] In order to solve the above problems, the specific technical solutions of the utility model are as follows: a side-pull door opening mechanism for a vacuum pressure casting tank, the tank body is seated on a horizontal plane through a base, and the axis of the tank body is horizontally arranged; a crossbeam is provided on the top of the opening of the tank body, the length direction of the crossbeam is perpendicular to the axis of the tank body, and a walking mechanism is slidably connected on the crossbeam, and the bottom of the walking mechanism is connected to the tank cover through a sliding hanging plate device; push-pull cylinders are respectively provided on both sides of the opening end of the tank body, and at least two ear plates are evenly distributed on the outer circumference of the tank cover. When the tank cover and the tank body are coaxially sealed, the push-pull cylinders are clamped and tightened with the ear plates.

[0005] The open end of the tank body is provided with a rotating gear ring, one end of which is coaxially rotatably matched with the tank body through rotating cylinders arranged on both sides, and the other end of the rotating gear ring extends out of the tank body and is provided with an inward folded edge, on which tooth grooves evenly distributed around the circumference are provided; teeth evenly distributed are provided on the circumference of the tank cover, the positions of the teeth correspond to the positions of the tooth grooves on the rotating gear ring, and the inner end surface of the folded edge presses and seals the end surface of the tank cover.

[0006] Four limiting rollers which are evenly distributed are arranged on the outer circumference of the rotating gear ring, and the supporting frames of the limiting rollers are connected with the tank body.

[0007] The sliding hanging plate device is respectively arranged on both sides of the walking mechanism, and includes end plates, pulleys, hanging plates and longitudinal beams; the end plates are respectively arranged on the front and rear sides of the walking mechanism, and the longitudinal beams are connected between the two end plates. The top of the hanging plate with a double-ear plate structure is connected to the pulley, and the pulley slides forward and backward along the longitudinal beam, and the bottom of the hanging plate is connected to the tank cover.

[0008] The crossbeam is an I-beam structure, and the walking mechanism includes a motor, a pinion and a large gear. The motor is connected to one of the end plates; the output shaft of the motor is connected to the pinion, and the large gear is symmetrically meshed on both sides of the pinion. A flange is provided on the end face of the large gear, and the flange is rollingly engaged with one side of the crossbeam.

[0009] A driven roller is movably connected to the other end plate, and the driven roller is in rolling cooperation with the other side of the cross beam.

[0010] The ear plate is an L-shaped bending structure, and a vertical limit plate is provided at the end of the L-shaped bending structure. The limit plate is provided with an open groove in the direction of the tank body, and the open groove is clamped with the end of the push-pull cylinder.

[0011] The side-pull door opening mechanism of the vacuum pressure casting tank of the present application adopts the above structure and has the following advantages:

[0012] 1. The tank cover is opened using the side space, saving the axial space of the tank body;

[0013] 2. When the tank cover is opened, the overall weight is applied to the beam and the force is evenly applied, so the service life of the tank cover is long;

[0014] 3. The double insurance structure of push-pull cylinder and rotating gear ring is adopted, which not only simplifies the structure while ensuring close fit, but also can withstand the internal pressure and ensure product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the side-pull door opening mechanism of the vacuum pressure casting tank (closed state).

[0016] Figure 2 This is the front view of the vacuum pressure casting tank side-pull door opening mechanism in the open state.

[0017] Figure 3 This is a top view of the side-pull door opening mechanism of the vacuum pressure casting tank in the open state.

[0018] Figure 4 for Figure 2 AA section view.

[0019] Figure 5 for Figure 4 A local enlarged view of location I.

[0020] Figure 6 This is a partial view of the rotating gear ring in the non-working state.

[0021] Figure 7 This is a partial diagram of the working state of the rotating ring gear. DETAILED DESCRIPTION

[0022] like Figures 1 to 5As shown, a side-pull type door opening mechanism for a vacuum pressure casting tank, the tank body 1 is seated on a horizontal plane through a base 6, and the axis of the tank body 1 is arranged horizontally; a crossbeam 3 is arranged on the top of the opening of the tank body 1, the length direction of the crossbeam 3 is perpendicular to the axis of the tank body 1, and a walking mechanism is slidably connected on the crossbeam 3, and the bottom of the walking mechanism is connected to the tank cover 2 through a sliding hanging plate device; push-pull cylinders 4 are arranged on both sides of the opening end of the tank body 1, and at least two ear plates 5 are evenly distributed on the outer circumference of the tank cover 2. This embodiment adopts two symmetrically arranged ear plates 5 on the left and right. When the tank cover 2 and the tank body 1 are coaxially sealed, the push-pull cylinder 4 is clamped and tightened with the ear plate 5. The top of the tank cover 2 is connected to the crossbeam through the walking mechanism to achieve left and right movement, and the push-pull cylinder 4 realizes the push-pull action with the tank cover 2 along the axial direction, and the tank cover is separated from the tank body after pushing, and the tank cover is sealed with the tank body after tightening, and the separation guide is limited by the sliding hanging plate device on the top.

[0023] like Figure 6 and Figure 7 As shown, the open end of the tank body 1 is provided with a rotating gear ring 7, one end of the rotating gear ring 7 is coaxially rotated with the tank body 1 through the rotating cylinder 8 arranged on both sides, the other end of the rotating gear ring 7 extends out of the tank body 1, and is provided with an inward folding edge 7-1, and the folding edge is provided with tooth grooves 7-2 evenly distributed around the circumference; uniformly distributed teeth 2-1 are provided on the circumference of the tank cover 2, the position of the teeth 2-1 corresponds to the position of the tooth grooves 7-2 on the rotating gear ring 7, and the inner end face of the folding edge 7-1 presses and seals the end face of the tank cover 2. After the tooth grooves of the rotating gear ring 7 rotate, they can further hold the outer end face of the sealed tank cover 2, thereby increasing the pressure resistance of the tank cover 2 and ensuring the safety of the equipment. Four equally spaced limiting rollers 7-3 are provided on the outer circumference of the rotating gear ring 7, the support frame of the limiting roller 7-3 is connected to the tank body 1, and the limiting roller 7-3 limits the rotation of the rotating gear ring 7 to prevent sinking due to excessive gravity.

[0024] like Figure 5 As shown, the sliding hanging plate device is respectively arranged on both sides of the walking mechanism, and includes an end plate 11, a pulley 12, a hanging plate 13 and a longitudinal beam 14; the end plates 11 are respectively arranged on the front and rear sides of the walking mechanism, and the longitudinal beam 14 is connected between the two end plates 11, and the top of the hanging plate 13 of the double-ear plate structure is connected to the pulley 12, and the pulley 12 slides forward and backward along the longitudinal beam, and the bottom of the hanging plate 13 is connected to the tank cover 2. When the push-pull cylinder 4 pushes the ear plate 5, the tank cover 2 drives the pulley 12 to move outward on the longitudinal beam 14 through the hanging plate 13, thereby realizing a slight movement in the axial direction of the tank cover 2, avoiding the interference of the rotating gear ring, and limiting the position through the front and rear end plates 11; when the push-pull cylinder 4 pulls the ear plate 5, the tank cover 2 drives the pulley 12 to move inward on the longitudinal beam 14 through the hanging plate 13, and the teeth 2-1 of the tank cover 2 can pass through the tooth grooves 7-2 of the rotating gear ring 7, and are sealed with the end surface of the tank body 1 through the sealing ring.

[0025] like Figure 5As shown, the cross beam 3 is an I-beam structure, and the walking mechanism includes a motor 21, a pinion 22 and a large gear 23. The motor 21 is connected to one of the end plates 11; the output shaft of the motor 21 is connected to the pinion 22, and the large gear 23 is symmetrically meshed on both sides of the pinion 22. A flange is provided on the end face of the large gear 23, and the flange is in rolling cooperation with one side of the cross beam 3. A driven roller 24 is movably connected to the other end plate, and the driven roller 24 is in rolling cooperation with the other side of the cross beam 3. The pinion 22 is symmetrically matched with the large gear 23 on both sides to ensure the smoothness of transmission, and both the large gear 23 and the driven roller 24 have flanges, and the two sides are limited by the cross beam 3 of the I-beam structure to ensure the accuracy during the movement.

[0026] like Figure 2 As shown, the ear plate 5 is an L-shaped bending structure, and a vertical limit plate 5-1 is provided at the end of the L-shaped bending structure. The limit plate 5-1 is provided with an open groove 5-2 facing the tank body 1, and the open groove 5-2 is engaged with the end of the push-pull cylinder 4. The limit plate 5-1 is provided with an open groove 5-2 structure to achieve quick engagement with the push-pull cylinder.

[0027] The working process of the side-pull door opening mechanism of the vacuum pressure casting tank is:

[0028] Opening: The original tank body 1 and the tank cover 2 are sealed, the rotating gear ring 7 is in a non-working state, the push-pull cylinder 4 is started, and the piston rod of the push-pull cylinder 4 pushes the limit plate of the ear plate 5 to move the tank cover 2 along the axial direction away from the tank body; then the motor 21 is started, and the small gear 22 and the large gear 23 are driven to drive the tank cover 2 to move along the crossbeam 3 to realize the opening of the tank cover.

[0029] Locking and sealing: Start the motor 21 to drive the tank cover 2 to move toward the tank body 1. After moving into place, the open groove 5-2 of the ear plate 5 is engaged with the piston rod of the push-pull cylinder 4; start the push-pull cylinder 4 to drive the tank cover 2 to move toward the end face of the tank body 1. During the movement, the tooth 2-1 of the tank cover 2 passes through the tooth groove 7-2 of the rotating gear ring 7 and enters into the folded edge 7-1 of the rotating gear ring 7, and the end face of the tank cover 2 is sealed with the end face of the tank body 1 through the sealing ring; then start the rotating cylinder 8 to drive the rotating gear ring 7 to rotate an angle, lock the tank cover 2 in the folded edge 7-1, and complete the locking and sealing.

Claims

1. A side-pull door opening mechanism for a vacuum pressure casting tank, characterized in that: The tank body (1) is seated on a horizontal plane through a base (6), and the axis of the tank body (1) is arranged horizontally; a crossbeam (3) is arranged on the top of the opening of the tank body (1), the length direction of the crossbeam (3) is perpendicular to the axis of the tank body (1), and a walking mechanism is slidably connected on the crossbeam (3), and the bottom of the walking mechanism is connected to the tank cover (2) through a sliding hanging plate device; push-pull cylinders (4) are respectively arranged on both sides of the opening end of the tank body (1), and at least two ear plates (5) are evenly distributed on the outer circumference of the tank cover (2). When the tank cover (2) and the tank body (1) are coaxially sealed, the push-pull cylinders (4) and the ear plates (5) are clamped and tightened.

2. The side-pull door opening mechanism of the vacuum pressure casting tank according to claim 1 is characterized in that: The open end of the tank body (1) is provided with a rotating gear ring (7), one end of the rotating gear ring (7) is coaxially rotatably matched with the tank body (1) through rotating cylinders (8) arranged on both sides, the other end of the rotating gear ring (7) extends out of the tank body (1) and is provided with an inwardly facing folded edge (7-1), on which tooth grooves (7-2) evenly distributed around the circumference are provided; teeth (2-1) evenly distributed around the circumference of the tank cover (2), the positions of the teeth (2-1) corresponding to the positions of the tooth grooves (7-2) on the rotating gear ring (7), and the inner end surface of the folded edge (7-1) presses and seals the end surface of the tank cover (2).

3. The side-pull door opening mechanism of the vacuum pressure pouring tank according to claim 2 is characterized in that: Four limiting rollers (7-3) are arranged at equal intervals on the outer circumference of the rotating gear ring (7), and a support frame of the limiting rollers (7-3) is connected to the tank body (1).

4. The side-pull door opening mechanism of the vacuum pressure casting tank according to claim 1 is characterized in that: The sliding hanging plate device is respectively arranged on both sides of the walking mechanism, and comprises an end plate (11), a pulley (12), a hanging plate (13) and a longitudinal beam (14); the end plates (11) are respectively arranged on the front and rear sides of the walking mechanism, the longitudinal beam (14) is connected between the two end plates (11), the top of the hanging plate (13) with a double-ear plate structure is connected to the pulley (12), the pulley (12) slides forward and backward along the longitudinal beam, and the bottom of the hanging plate (13) is connected to the tank cover (2).

5. The side-pull door opening mechanism of the vacuum pressure casting tank according to claim 4 is characterized in that: The cross beam (3) is an I-beam structure, and the travel mechanism comprises a motor (21), a pinion (22) and a large gear (23), wherein the motor (21) is connected to one of the end plates (11); the output shaft of the motor (21) is connected to the pinion (22), and the large gear (23) is symmetrically meshed on both sides of the pinion (22), and a flange is provided on the end surface of the large gear (23), and the flange is in rolling engagement with one side of the cross beam (3).

6. The side-pull door opening mechanism of the vacuum pressure casting tank according to claim 5, characterized in that: A driven roller (24) is movably connected to the other end plate, and the driven roller (24) is in rolling cooperation with the other side of the crossbeam (3).

7. The side-pull door opening mechanism of the vacuum pressure casting tank according to claim 1 is characterized in that: The ear plate (5) is an L-shaped bending structure, and a vertical limit plate (5-1) is provided at the end of the L-shaped bending structure. The limit plate (5-1) is provided with an opening groove (5-2) in the direction of the tank body (1), and the opening groove (5-2) is clamped with the end of the push-pull cylinder (4).

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