Automatic pressure relief device for pressurizing cradle

Abstract

The utility model relates to the field of drawing frame equipment, in particular to an automatic pressure relief device of a pressurizing cradle, which comprises a roller stand, a baffle plate I and a baffle plate II which are arranged on the side surface of the roller stand and are parallel to each other, and a turntable arranged between the baffle plate I and the baffle plate II, the opposite side faces of the first baffle and the second baffle are fixedly connected with a first inserting rod and a second inserting rod correspondingly, and the first inserting rod and the second inserting rod are distributed around the circle center of the rotary disc in a central symmetry mode. A boss is fixedly connected to one side surface of the turntable, and an eccentric shaft is fixed on the side surface of the boss deviating from the circle center; the device has the beneficial effects that the rotating disc is arranged between the first baffle and the second baffle, the eccentric shaft is fixed to the position, deviating from the circle center, of the side face of the first boss, and the limiting stop lever is perpendicular to the surface of the rotating disc and penetrates through the arc-shaped limiting groove; at the moment, the driving shaft rotates and drives the turntable to approach the baffle I or the baffle II through threads until the inserting rod I or the inserting rod II is inserted into the inner cavity of the positioning inserting hole, so that the turntable is stably positioned.

Description

Technical Field

[0001] The utility model relates to the field of drawing frame equipment, in particular to an automatic pressure relief device for a pressurized cradle. Background Art

[0002] During the operation of the old-style drawing frame, the drawing frame stops for a long time. If the pressure is not relieved for a long time, it will cause damage to the leather roller. Manual pressure relief is required, and manual pressure relief also requires a certain level of proficiency to complete the operation. If the operator is not skilled in operation, it is easy to forget to relieve the pressure, which will cause damage to the leather roller.

[0003] The Chinese utility model with publication number CN216074142U discloses a pressure relief structure for a drawing frame cradle, which realizes pressure relief of a pressurizing device by driving a locking eccentric shaft to rotate through a driving component, thereby avoiding the problems of poor reliability and efficiency of manual pressure relief operation.

[0004] However, in actual use, after the pressurizing hook fastens the pressurizing cradle and the main frame and keeps them fixedly connected, the eccentric shaft needs to continue to squeeze the pressurizing hook to avoid insufficient pressure between the pressurizing cradle and the main frame. At the same time, the reaction force generated by the pressurizing hook on the eccentric shaft can easily cause the eccentric shaft to rotate, thereby affecting the stability of the pressurizing cradle. To this end, the utility model proposes an automatic pressure relief device for a pressurizing cradle to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an automatic pressure relief device for a pressurized cradle, so as to solve the problem that the traditional cradle pressure relief structure proposed in the above background technology is difficult to ensure the stability of the cradle when pressurization is required.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a pressurized cradle automatic pressure relief device, comprising:

[0007] A roller seat, wherein a baffle plate 1 and a baffle plate 2 are parallel to each other on the side of the roller seat, a rotating disk is arranged between the baffle plate 1 and the baffle plate 2, an arc-shaped limit groove and a positioning plug hole are opened on the edge of the rotating disk, a limit stopper rod is fixedly connected between the baffle plate 1 and the baffle plate 2, and the limit stopper rod passes through the arc-shaped limit groove, and an insertion rod 1 and an insertion rod 2 are fixedly connected to the sides directly facing the baffle plate 1 and the baffle plate 2, respectively, and the two are centrally symmetrically distributed around the center of the rotating disk;

[0008] A boss is fixedly connected to one side of the rotating disk, an eccentric shaft is fixed to the side of the boss at a position deviating from the center of the circle, and a pressure hook rotatably connected to the eccentric shaft is arranged on the outer side of the eccentric shaft.

[0009] Preferably, baffle plate 1 and baffle plate 2 are both arranged in a quadrilateral structure and are fixedly connected at the four corners by supporting connecting rods. The distance between baffle plate 1 and baffle plate 2 is greater than the thickness of the turntable. The end of the first plug rod, the end of the second plug rod and the opening of the positioning hole are all provided with chamfers.

[0010] Preferably, a bearing is embedded in one end of the pressure hook, the eccentric shaft passes through the inner cavity of the inner ring of the bearing and cooperates with the inner ring gap, both side surfaces of one end of the pressure hook are provided with recessed grooves, and the bottom of the recessed groove is fixedly connected with a side retaining ring by a countersunk bolt, the inner diameter of the side retaining ring is smaller than the diameter of the outer ring of the bearing and larger than the diameter of the eccentric shaft, and the side surface of the side retaining ring is kept flush with the side surface of the pressure hook.

[0011] Preferably, the other side of the turntable is fixedly connected to a hollow cylinder concentric therewith, and the hollow cylinder is a hollow structure with an open end, a driving shaft is inserted into the inner cavity of one end of the hollow cylinder, and a frustum is fixedly provided on the outer side of one end of the driving shaft, and the outer wall of the frustum is fitted with the inner wall of the hollow cylinder, and the fitting position is provided with mating threads.

[0012] Preferably, a guide shaft is fixedly installed in the middle of the inner cavity of the hollow cylinder, the middle of the driving shaft is hollow, and one end of the guide shaft is movably inserted in the middle of the driving shaft, and an anti-slip ring is fixedly installed at the open end of the hollow cylinder, and the inner diameter of the anti-slip ring is smaller than the diameter of the cone at one end of the driving shaft.

[0013] Preferably, the boss and the hollow cylinder movably penetrate the side surfaces of baffle 2 and baffle 1 respectively, an annular support is fixedly installed on the surface of baffle 1 away from baffle 2, and a driving member for driving the driving shaft to rotate is fixedly installed on the side surface of the annular support.

[0014] Preferably, the inner wall of the annular support is stepped, the drive shaft passes through the inner cavity of the annular support, and the hollow cylinder is movably inserted into the inner cavity of the annular support.

[0015] Preferably, a side plate parallel to baffle plate 2 is fixed on the surface of the roller seat, the pressure hook is located between baffle plate 2 and the side plate, the spacing between baffle plate 2 and the side plate is consistent with the thickness of the pressure hook, and a circular hole for the eccentric shaft to pass through is opened on the side plate, and the circular hole is concentric with the boss.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model provides a rotating disk by arranging a rotating disk between baffle plate one and baffle plate two, a boss is fixed on one side of the rotating disk, an eccentric shaft is fixed at a position deviated from the center of a circle on one side of the boss, an arc-shaped limit groove and a positioning insertion hole are opened at the edge of the rotating disk, and a plug rod one and a plug rod two are fixed to the sides facing the baffle plate one and the baffle plate two respectively, and the two are symmetrically distributed around the center of a circle of the rotating disk, and a limit stop lever is fixed between the baffle plate one and the baffle plate two, and the limit stop lever is perpendicular to the surface of the rotating disk and passes through the arc-shaped limit groove. When the rotating disk rotates, the eccentric shaft can pressurize or relieve pressure on the pressure hook, and at the same time, the limit stop lever cooperates with the arc-shaped limit groove to limit the rotation of the rotating disk. At this time, the driving shaft rotates and drives the rotating disk to approach the baffle plate one or the baffle plate two through a thread until the plug rod one or the plug rod two is inserted into the inner cavity of the positioning insertion hole, thereby realizing stable positioning of the rotating disk, avoiding the reaction force of the pressure hook on the eccentric shaft causing the rotating disk to rotate, and ensuring that the stability of the eccentric shaft can be guaranteed when the pressure hook is pressurized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a side schematic diagram of the roller seat structure of the utility model;

[0020] Figure 3 This is an exploded schematic diagram of the roller seat structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the explosion of the hollow cylinder structure of the utility model;

[0022] Figure 5 This is an exploded schematic diagram of the pressurized hook structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the coordination of the turntable and baffle structure of the utility model;

[0024] Figure 7 It is a schematic diagram of the structure coordination between the turntable and the baffle in the pressurized state of the utility model.

[0025] In the figure: 1. roller seat; 2. baffle plate 1; 21. plug rod 1; 3. baffle plate 2; 31. plug rod 2; 4. turntable; 41. arc-shaped limit groove; 42. positioning hole; 5. hollow cylinder; 51. guide shaft; 52. anti-slip ring; 6. boss; 7. eccentric shaft; 8. pressure hook; 81. recessed groove; 82. bearing; 83. side retaining ring; 9. driving shaft; 10. limit stop rod; 11. supporting connecting rod; 12. annular support; 13. driving member. DETAILED DESCRIPTION

[0026] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] For example, see Figures 1 to 7 , the utility model provides a technical solution:

[0028] Embodiment 1, a pressurized cradle automatic pressure relief device, comprises: a roller seat 1.

[0029] Specifically, a baffle plate 1 2 and a baffle plate 2 3 are arranged on the side of the roller seat 1, and the baffle plate 1 2 and the baffle plate 2 3 are fixedly connected to the roller seat 1 by bolts. A turntable 4 is arranged between the baffle plate 1 2 and the baffle plate 2 3. The turntable 4 can move between the baffle plate 1 2 and the baffle plate 2 3, and can also rotate around its own axis. An arc-shaped limit groove 41 and a positioning socket 42 are opened on the edge of the turntable 4. A limit stop rod 10 is fixedly connected between the baffle plate 1 2 and the baffle plate 2 3, and the limit stop rod 10 passes through the arc-shaped limit groove 41. Figure 4 As shown, the arc of the arc-shaped limiting groove 41 is slightly greater than 180 degrees. Figure 6 As shown, when the turntable 4 rotates 180 degrees, the limit stopper 10 can just slide from one end of the arc-shaped limit groove 41 to the other end, thereby realizing the rotation limit of the turntable 4, and the sides of the baffle plate 1 2 and the baffle plate 2 3 facing each other are respectively fixedly connected with the insertion rod 1 21 and the insertion rod 2 31, and the two are centrally symmetrically distributed around the center of the turntable 4, as shown in FIG. Figure 6 As shown, when the limiting stopper rod 10 is located at one end of the arc-shaped limiting groove 41, the turntable 4 can move close to the baffle plate 2 3, and the insertion rod 2 31 is inserted into the inner cavity of the positioning hole 42, and the rotation of the turntable 4 can be positioned; Figure 7 As shown, when the limiting stopper rod 10 is located at the other end of the arc-shaped limiting groove 41, the turntable 4 can move close to the baffle plate 2, and the insertion rod 21 is inserted into the inner cavity of the positioning insertion hole 42, and the rotation of the turntable 4 is positioned again;

[0030] Secondly, a boss 6 is fixedly connected to one side of the turntable 4, an eccentric shaft 7 is fixed to the side of the boss 6 at a position deviating from the center of the circle, and a pressurizing hook 8 rotatably connected to the eccentric shaft 7 is arranged on the outer side of the eccentric shaft 7. Since the turntable 4 can only rotate 180 degrees, the eccentric shaft 7 can be rotated and moved to the upper side or the lower side of the boss 6, so as to realize the pressure relief or pressure on the pressurizing cradle. At this time, since the second plug rod 31 (or the first plug rod 21) is plugged in with the positioning plug hole 42, the reaction force generated by the pressurizing hook 8 on the eccentric shaft 7 cannot drive the turntable 4 to rotate, thereby ensuring stability.

[0031] In addition, the roller seat 1 of the device is installed on the main frame of the drawing frame, and the pressure cradle is located on the upper side of the main frame. When the pressure cradle rotates and approaches the main frame of the drawing frame, the pressure hook 8 can be buckled on the outside of the pressure cradle by pulling the pressure hook 8, and then the pressure hook 8 is pressed down by the eccentric shaft 7, so that the pressure hook 8 can be fastened to the pressure cradle.

[0032] In order to limit the distance between baffle 1 2 and baffle 2 3, baffle 1 2 and baffle 2 3 of the present application are both arranged in a quadrilateral structure and are fixedly connected at the four corners by supporting connecting rods 11, thereby ensuring the stability of the positions of baffle 1 2 and baffle 2 3, and the distance between baffle 1 2 and baffle 2 3 is greater than the thickness of the turntable 4, ensuring that the turntable 4 can be moved close to baffle 1 2 or close to baffle 2 3, thereby realizing the insertion of rod 1 21 or rod 2 31 into the inner cavity of the positioning socket 42 to position the rotation of the turntable 4, and chamfers are provided at the ends of rod 1 21, the ends of rod 2 31 and the opening of the positioning socket 42.

[0033] In order to reduce the friction between the eccentric shaft 7 and the pressurizing hook 8, the present application also has a bearing 82 embedded at one end of the pressurizing hook 8. The bearing 82 is an existing well-known structure. The bearing 82 has an inner ring and an outer ring, and a rolling body is arranged between the inner and outer rings. The eccentric shaft 7 passes through the inner cavity of the inner ring of the bearing 82 and cooperates with the inner ring gap. Therefore, when the eccentric shaft 7 rotates and moves, only a small and almost negligible friction force is generated between the pressurizing hook 8. Concave grooves 81 are provided on both side surfaces of one end of the pressurizing hook 8, and the bottom of the concave groove 81 is fixedly connected with a side retaining ring 83 by a countersunk bolt. The inner diameter of the side retaining ring 83 is smaller than the diameter of the outer ring of the bearing 82 and larger than the diameter of the eccentric shaft 7. The side retaining ring 83 is arranged to position the bearing 82 to prevent the bearing 82 from disengaging from the pressurizing hook 8. In addition, the side surface of the side retaining ring 83 is kept flush with the side surface of the pressurizing hook 8 to prevent the pressurizing hook 8 from being blocked when moving.

[0034] In order to drive the turntable 4 to rotate or move, the present application also has a hollow cylinder 5 concentric with the turntable 4 fixedly connected to the other side of the turntable 4. The hollow cylinder 5 is a hollow structure with one end open. A driving shaft 9 is inserted into the inner cavity of one end of the hollow cylinder 5. A round table is fixedly arranged on the outer side of one end of the driving shaft 9. The outer wall of the round table fits the inner wall of the hollow cylinder 5, and the fitting part is provided with mutually matching threads, such as Figure 4 As shown, when the turntable 4 is in a free state, the rotation of the drive shaft 9 can drive the hollow cylinder 5 to rotate through the friction between the threads of the truncated cone and the hollow cylinder 5. When the turntable 4 is positioned by the second insertion rod 31 (or the first insertion rod 21) and the hollow cylinder 5 cannot rotate, the rotation of the drive shaft 9 can drive the hollow cylinder 5 to move away from (or close to) the drive shaft 9 until the turntable 4 is separated from the second insertion rod 31 (or the first insertion rod 21). Then the rotation of the drive shaft 9 can drive the hollow cylinder 5 to rotate.

[0035] In order to prevent the driving shaft 9 from separating from the hollow cylinder 5, the present application also has a guide shaft 51 fixedly installed in the middle of the inner cavity of the hollow cylinder 5, the middle of the driving shaft 9 is hollow, and one end of the guide shaft 51 is movably inserted in the middle of the driving shaft 9, the setting of the guide shaft 51 is used to improve the coaxiality of the driving shaft 9 and the hollow cylinder 5, and an anti-slip ring 52 is fixedly installed at the open end of the hollow cylinder 5, the inner diameter of the anti-slip ring 52 is smaller than the diameter of the cone at one end of the driving shaft 9, and the setting of the anti-slip ring 52 is used to prevent the driving shaft 9 from separating from the hollow cylinder 5.

[0036] In order to drive the drive shaft 9 to rotate, the boss 6 and the hollow cylinder 5 of the present application are respectively movable through the sides of baffle 2 3 and baffle 1 2, so that the turntable 4 can only move or rotate along its own axial direction, and the surface of baffle 1 2 away from baffle 2 3 is fixedly installed with an annular support 12, and the side of the annular support 12 is fixedly installed with a driving member 13 that drives the drive shaft 9 to rotate. The driving member 13 is a rotating cylinder, which drives the drive shaft 9 to rotate when working. The driving member 13 can also be a motor or other power device that can drive the drive shaft 9 to rotate.

[0037] In order to prevent the hollow cylinder 5 from colliding with the annular support 12, the present application also has a step-shaped inner wall of the annular support 12, the drive shaft 9 passes through the inner cavity of the annular support 12, and the hollow cylinder 5 is movably plugged into the inner cavity of the annular support 12, such as Figure 3 As shown, when the turntable 4 slides along its own axial direction, the stepped inner wall of the annular support 12 can prevent the hollow cylinder 5 from colliding with the annular support 12 .

[0038] In order to prevent the pressure hook 8 from being separated from the eccentric shaft 7, the present application also has a side plate parallel to the baffle plate 2 3 fixed on the surface of the roller seat 1, the pressure hook 8 is located between the baffle plate 2 3 and the side plate, the spacing between the baffle plate 2 3 and the side plate is consistent with the thickness of the pressure hook 8, and a circular hole for the eccentric shaft 7 to move through is opened on the side plate, and the circular hole is concentric with the boss 6, such as Figure 1 and Figure 2 As shown, the side plate on the surface of the roller seat 1 can be used to limit the pressure hook 8 to prevent the pressure hook 8 from moving along the axial direction of the eccentric shaft 7 and causing separation from the eccentric shaft 7.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressurized cradle automatic pressure relief device, characterized in that: include: A roller seat (1), wherein a baffle plate 1 (2) and a baffle plate 2 (3) are arranged on the side of the roller seat (1), and a rotating disk (4) is arranged between the baffle plate 1 (2) and the baffle plate 2 (3), and an arc-shaped limiting groove (41) and a positioning plug hole (42) are provided on the edge of the rotating disk (4), a limiting blocking rod (10) is fixedly connected between the baffle plate 1 (2) and the baffle plate 2 (3), and the limiting blocking rod (10) passes through the arc-shaped limiting groove (41), and the side surfaces directly facing the baffle plate 1 (2) and the baffle plate 2 (3) are respectively fixedly connected with an insert rod 1 (21) and an insert rod 2 (31), and the two are centrally symmetrically distributed around the center of the rotating disk (4); A boss (6) is fixedly connected to one side of the rotating disk (4), an eccentric shaft (7) is fixed to the side of the boss (6) at a position deviating from the center of the circle, and a pressure hook (8) rotatably connected to the eccentric shaft (7) is arranged on the outer side of the eccentric shaft (7).

2. The automatic pressure relief device for a pressurized cradle according to claim 1, characterized in that: The baffle plate 1 (2) and the baffle plate 2 (3) are both arranged in a quadrilateral structure and are fixedly connected at the four corners by supporting connecting rods (11); the spacing between the baffle plate 1 (2) and the baffle plate 2 (3) is greater than the thickness of the turntable (4); and the ends of the insertion rod 1 (21), the ends of the insertion rod 2 (31) and the opening of the positioning insertion hole (42) are all provided with chamfers.

3. The automatic pressure relief device for a pressurized cradle according to claim 1, characterized in that: A bearing (82) is embedded at one end of the pressure hook (8), and the eccentric shaft (7) passes through the inner cavity of the inner ring of the bearing (82) and is clearance-matched with the inner ring. Concave grooves (81) are provided on both side surfaces of one end of the pressure hook (8), and a side retaining ring (83) is fixedly connected to the bottom of the concave groove (81) by countersunk bolts. The inner diameter of the side retaining ring (83) is smaller than the diameter of the outer ring of the bearing (82) and larger than the diameter of the eccentric shaft (7), and the side surface of the side retaining ring (83) is kept flush with the side surface of the pressure hook (8).

4. The automatic pressure relief device for a pressurized cradle according to claim 1, characterized in that: The other side of the turntable (4) is fixedly connected to a hollow cylinder (5) which is concentric therewith. The hollow cylinder (5) is a hollow structure with one end open. A driving shaft (9) is inserted into the inner cavity of one end of the hollow cylinder (5). A truncated cone is fixedly arranged on the outer side of one end of the driving shaft (9). The outer wall of the truncated cone fits with the inner wall of the hollow cylinder (5), and mutually matching threads are arranged at the fitting position.

5. The automatic pressure relief device for a pressurized cradle according to claim 4, characterized in that: A guide shaft (51) is fixedly mounted in the middle of the inner cavity of the hollow cylinder (5); the middle of the driving shaft (9) is hollow, and one end of the guide shaft (51) is movably plugged into the middle of the driving shaft (9); an anti-slip ring (52) is fixedly mounted at the open end of the hollow cylinder (5); the inner diameter of the anti-slip ring (52) is smaller than the diameter of the cone at one end of the driving shaft (9).

6. The automatic pressure relief device for a pressurized cradle according to claim 5, characterized in that: The boss (6) and the hollow cylinder (5) are respectively movably connected through the side surfaces of baffle plate 2 (3) and baffle plate 1 (2); a ring-shaped support (12) is fixedly mounted on the surface of baffle plate 1 (2) away from baffle plate 2 (3); and a driving member (13) for driving the driving shaft (9) to rotate is fixedly mounted on the side surface of the ring-shaped support (12).

7. The automatic pressure relief device for a pressurized cradle according to claim 6, characterized in that: The inner wall of the annular support (12) is stepped, the drive shaft (9) passes through the inner cavity of the annular support (12), and the hollow cylinder (5) is movably plugged into the inner cavity of the annular support (12).

8. The automatic pressure relief device for a pressurized cradle according to claim 1, characterized in that: A side plate parallel to the second baffle plate (3) is fixed on the surface of the roller seat (1); the pressure hook (8) is located between the second baffle plate (3) and the side plate; the spacing between the second baffle plate (3) and the side plate is consistent with the thickness of the pressure hook (8); a circular hole for the eccentric shaft (7) to movably pass through is opened on the side plate, and the circular hole is concentric with the boss (6).

Images