Demolding equipment suitable for rubber stator of screw drill

Abstract

The invention relates to the technical field of screw drill machining, in particular to demolding equipment suitable for a screw drill rubber stator, which comprises a rack, a guide rail is arranged on the rack along the length direction of the rack, a product fixing chain group is mounted at one end of the rack, and a drawing oil cylinder is slidably mounted on the guide rail; a product fixing chain set is arranged on the rack, a drawing oil cylinder is arranged on the product fixing chain set, a driving assembly used for driving the drawing oil cylinder to move along the guide rail is installed on the side face of the rack, and the output end of the drawing oil cylinder faces the product fixing chain set and is connected with a rotary drawing box set. And in the demolding process of workers, operation is tedious, and labor intensity is high.

Description

Technical Field

[0001] The invention relates to the technical field of screw drill tool processing, and in particular to a demoulding device suitable for a rubber stator of a screw drill tool. Background Art

[0002] The demoulding of the screw drill stator is the process of pulling out the mandrel mold after the stator tube is injected with glue. The stator itself is relatively long, generally about 6 meters in length, and the diameter is generally in the range of φ95mm to φ292mm. The maximum weight of the stator and the mandrel does not exceed 4T. The stator is made of steel pipe on the outside and multi-head spiral rubber on the inside. The mandrel mold is a multi-head spiral round steel. Therefore, special tooling or equipment is required to pull out the multi-head spiral mandrel. Most of the existing tooling or equipment is manual or semi-automatic mode, and the equipment and tooling occupy a large area. Workers often have cumbersome operations during the demoulding process, with high labor intensity and lack of certain safety.

[0003] The existing screw drill transmission shaft assembly centralizers have obvious deficiencies, which are mainly manifested as follows: 1. Complex tooling and equipment; 2. The labor intensity of workers is high; 3. Low degree of automation and low work efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a demoulding device suitable for a rubber stator of a screw drill, so as to solve the problem that in the prior art, most of the demoulding devices used for the rubber stator of a screw drill are manual or semi-automatic, and workers often have cumbersome operations and high labor intensity during the demoulding process.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A demoulding device suitable for a rubber stator of a screw drill comprises a frame, a guide rail is arranged on the frame along its length direction, a product fixing chain group is installed at one end of the frame, a drawing cylinder is slidably installed on the guide rail, a driving component for driving the drawing cylinder to move along the guide rail is installed on the side of the frame, the output end of the drawing cylinder faces the product fixing chain group and is connected to a rotating drawing box group.

[0006] A further technical solution is that the driving assembly includes a chain, a driving sprocket, a driven sprocket and a driving motor. The driving sprocket and the driven sprocket are respectively installed at both ends of the guide rail. The driving sprocket and the driven sprocket are connected by a chain transmission. The output shaft of the driving motor is connected to the driving sprocket transmission; the pulling cylinder is fixedly connected to the chain.

[0007] A further technical solution is that a traveling bracket is slidably installed on the guide rail, and a pulling cylinder is installed on the upper side of the traveling bracket; a pulling ratchet parallel to the guide rail is provided on the upper side of the frame along its length direction, and a pulling pawl matching the pulling ratchet is provided on the traveling bracket, and the pulling ratchet and the pulling pawl are used to limit the traveling bracket to move only in a direction away from the product fixing chain group cylinder; the traveling bracket and the chain are fixedly connected.

[0008] A further technical solution is that a connecting groove is provided on the side of the rotating pull-out box group facing the product fixing chain group, an adjusting plate is vertically provided in the connecting groove, an adjusting bar hole that runs through both sides is vertically provided on the side of the adjusting plate facing the notch of the connecting groove, a connecting rod is provided in the adjusting bar hole for sliding up and down, a first limiting ring and a second limiting ring are respectively provided on both sides of the adjusting plate, an adjusting hole communicating with the connecting groove is provided on the upper side of the rotating pull-out box group, an adjusting ring is installed in the adjusting hole, an adjusting rod is vertically provided in the adjusting ring, the upper end of the adjusting rod is placed above the rotating pull-out box group, and the lower end is connected to the first limiting ring; the end of the connecting rod away from the bottom of the connecting groove is placed outside the connecting groove, and is rotatably connected to a rotating connecting seat.

[0009] A further technical solution is that a locking hole that penetrates the inside and outside is provided on the side of the adjusting ring, and a locking nut is installed on the adjusting ring in alignment with the locking hole. The inner thread of the locking nut is matched and connected with a locking screw. One end of the locking screw is connected to the top of the adjusting rod inside the adjusting ring, and the other end is connected to a rotating ball on the outside of the locking nut.

[0010] A further technical solution is that a mounting groove is provided on the upper side of the frame end, and the product fixing chain group includes a first fixing frame, a second fixing frame, and a chain group. The first fixing frame and the second fixing frame are vertically installed in the mounting groove at intervals, and the two ends of the chain group are respectively connected to the first fixing frame and the second fixing frame for sliding up and down. The first fixing frame and the second fixing frame are vertically provided with fixed cylinders for pushing the chain group to move up and down; the upper end of the first fixing frame is rotatably connected to an upper shift rod, and the end of the upper shift rod away from the first fixing frame is snap-connected to the upper end of the second fixing frame.

[0011] A further technical solution is that a push rod is installed on the top of the fixed oil cylinder, a support ring is provided on the outer wall surrounding the lower end of the push rod, and a spring is sleeved on the upper side of the support ring on the outer wall of the push rod, and the spring is connected to the lower side of the end of the chain group.

[0012] A further technical solution is that a traveling support frame is movably arranged on the upper side of the guide rail between the traveling support frame and the product fixing chain group.

[0013] A further technical solution is that the lower end of the walking support frame is slidably connected to the guide rail, a supporting cylinder is vertically arranged in the walking support frame, the output end of the supporting cylinder extends out of the upper end of the walking support frame and is connected to a supporting bracket.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By setting a product fixing chain group, the stator of different sizes can be reliably fixed, and the stator after the injection is completed can be fixed, ensuring that the stator will not move during the entire demoulding process, avoiding demoulding failure; 2. During the demoulding process, the mandrel in the stator can be pulled out for a section by means of the swing and rotation of the pulling cylinder and the rotating pulling box group. After being pulled out, the mandrel in the stator is pulled out step by step in cooperation with the movement of the driving component and the extension of the cylinder, so as to achieve continuous demoulding of stators of different lengths. The driving component drives the pulling cylinder away from the stator for a distance, and the output shaft of the pulling cylinder that has been retracted is extended again. When the output shaft of the pulling cylinder is extended, the driving component stops, the pulling cylinder starts to retract, and the mandrel continues to be pulled out of the stator for a distance. Repeating the above steps can complete the demoulding of the mandrel; 3. The demoulding equipment of the present invention can not only realize the full-automatic demoulding operation of the stator, but also can use the full-automatic demoulding method to remove the mandrel, which significantly improves the safety of the operation and greatly reduces the labor intensity. It also reduces the labor intensity, labor consumption and labor risk factor; 4. The present invention can pull the core shaft out of the stator in a multi-stage pulling manner through the cooperation of the driving component and the pulling cylinder, which can easily reduce the length of the entire equipment and thus reduce the size of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a side schematic diagram of a demoulding device suitable for a rubber stator of a screw drill.

[0016] Figure 2 The present invention is a top view of a demoulding device suitable for a rubber stator of a screw drill.

[0017] Figure 3 The present invention is a schematic diagram of a first fixing frame of a demoulding device suitable for a rubber stator of a screw drill.

[0018] Figure 4 The present invention is a schematic diagram of a first fixing frame and a second fixing frame of a demoulding device suitable for a rubber stator of a screw drill.

[0019] Figure 5 for Figure 1 A partial enlarged schematic diagram of the area marked A in the middle.

[0020] Figure 6 for Figure 1 A partial enlarged schematic diagram of the area marked B in the middle.

[0021] Icons: 1-frame, 2-guide rail, 3-product fixing chain group, 4-pulling cylinder, 5-rotating pulling box group, 6-chain, 7-driving sprocket, 8-driven sprocket, 9-travel bracket, 10-pulling ratchet, 11-pulling pawl, 12-connecting groove, 13-adjusting plate, 14-adjusting bar hole, 15-connecting rod, 16-first limiting ring, 17-second limiting ring, 18-adjusting ring, 19-adjusting rod, 20- Rotating connecting seat, 21-locking hole, 22-locking nut, 23-locking screw, 24-rotating ball, 25-mounting groove, 26-first fixed frame, 27-second fixed frame, 28-fixed cylinder, 29-upper gear rod, 30-thrust rod, 31-support ring, 32-spring, 33-travel support frame, 34-support cylinder, 35-support bracket, 36-core shaft, 37-stator, 38-chain group, 39-pump station. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] Figures 1 to 6 An embodiment of the present invention is shown.

[0024] Embodiment 1: A demoulding device suitable for a rubber stator of a screw drill comprises a frame 1, a guide rail 2 is arranged on the frame 1 along its length direction, a product fixing chain group 3 is installed at one end of the frame 1, a drawing oil cylinder 4 is slidably installed on the guide rail 2, a driving assembly for driving the drawing oil cylinder 4 to move along the guide rail 2 is installed on the side of the frame 1, and the output end of the drawing oil cylinder 4 faces the product fixing chain group 3 and is connected to a rotating drawing box group 5. By setting the product fixing chain group 3, the stator 37 after the glue injection is completed can be fixed to ensure that the stator 37 will not move during the entire demoulding process, causing demoulding failure. During the demoulding process, with the help of the pulling cylinder 4 and the rotating pulling box group 5, the mandrel 36 in the stator 37 can be pulled out for a distance. After being pulled out, the pulling cylinder 4 is driven by the driving component to move away from the stator 37 for a distance, and the output shaft of the pulling cylinder 4 that has been retracted is extended again. When the output shaft of the pulling cylinder 4 is extended, the driving component stops, and the pulling cylinder 4 starts to retract, and the mandrel 36 continues to be pulled out of the stator 37 for a distance. Repeat the above steps to complete the demoulding of the mandrel 36. The demoulding equipment of the present invention can not only use a fully automatic demoulding method to remove the mandrel 36, but also reduce labor consumption and labor risk factors. The present invention can use a multi-stage extraction method to pull the mandrel 36 out of the stator 37 through the cooperation of the driving component and the pulling cylinder 4, which can easily reduce the length of the entire equipment, thereby reducing the size of the equipment.

[0025] The driving assembly includes a chain 6, a driving sprocket 7, a driven sprocket 8 and a driving motor. The driving sprocket 7 and the driven sprocket 8 are respectively installed at both ends of the guide rail 2. The driving sprocket 7 and the driven sprocket 8 are connected by the chain 6. The output shaft of the driving motor is connected by the driving sprocket 7. The pulling cylinder 4 is fixedly connected to the chain 6. In this arrangement, the driving sprocket 7 is rotated by the driving motor, which can drive the chain 6 to move, and the chain 6 drives the pulling cylinder 4 to move in stages. After a period of displacement, the core shaft 36 is pulled out of the stator 37 by the pulling cylinder 4 for a distance, and then the pulling cylinder 4 is driven to move for a period of time.

[0026] A traveling bracket 9 is slidably mounted on the guide rail 2, and a pulling cylinder 4 is mounted on the upper side of the traveling bracket 9; a pulling ratchet 10 parallel to the guide rail 2 is arranged on the upper side of the frame 1 along its length direction, and a pulling pawl 11 matching the pulling ratchet 10 is arranged on the traveling bracket 9, and the pulling ratchet 10 and the pulling pawl 11 cooperate to limit the traveling bracket 9 to move only in the direction away from the cylinder of the product fixing chain group 3; the traveling bracket 9 is fixedly connected to the chain 6. By setting the pulling ratchet 10 and the pulling pawl 11, when the pulling cylinder 4 pulls out the mandrel 36, the traveling bracket 9 can be prevented from moving toward the stator 37, affecting the pulling effect of the pulling cylinder 4 on the mandrel 36. And with the one-way limiting structure of the pulling ratchet 10 and the pulling pawl 11, the chain 6 will not be restricted from driving the traveling bracket 9 to move normally in the direction away from the stator 37.

[0027] Embodiment 2: On the basis of Example 1, a connecting groove 12 is provided on the side of the rotating drawbox group 5 facing the product fixing chain group 3, an adjusting plate 13 is vertically provided in the connecting groove 12, an adjusting bar hole 14 that passes through both sides is vertically provided on the side of the adjusting plate 13 facing the notch of the connecting groove 12, a connecting rod 15 is provided in the adjusting bar hole 14 for sliding up and down, the connecting rod 15 is respectively sleeved with a first limiting ring 16 and a second limiting ring 17 on both sides of the adjusting plate 13, an adjusting hole connected to the connecting groove 12 is provided on the upper side of the rotating drawbox group 5, an adjusting ring 18 is installed in the adjusting hole, an adjusting rod 19 is vertically provided in the adjusting ring 18, the upper end of the adjusting rod 19 is placed above the rotating drawbox group 5, and the lower end is connected to the first limiting ring 16; the end of the connecting rod 15 away from the bottom of the connecting groove 12 is placed outside the connecting groove 12, and is rotatably connected to a rotating connecting seat 20. Since the size of the mandrel 36 will change with the size of the stator 37, the height of the axis of the mandrel 36 will change after the stator 37 is fixed in the product fixing chain set 3. Therefore, by adjusting the bar hole 14 and the connecting rod 15, the rotating connecting seat 20 can be adjusted up and down to align and connect with the mandrel 36, so as to adapt to the change of the axis height of the mandrel 36. The first limiting ring 16 and the second limiting ring 17 can make the connecting rod 15 fit the two sides of the adjustment plate 13 and slide up and down. By setting the adjustment rod 19 and the adjustment ring 18, the connecting rod 15 can be driven to adjust.

[0028] The side of the adjusting ring 18 is provided with a locking hole 21 that passes through the inside and outside. The adjusting ring 18 is aligned with a locking nut 22 and installed at the position of the locking hole 21. The locking nut 22 is matched with a locking screw 23 connected to the inner thread. One end of the locking screw 23 is connected to the adjusting rod 19 in the adjusting ring 18, and the other end is connected to the outer side of the locking nut 22. By providing the locking nut 22 and the locking screw 23, after adjusting the height of the connecting rod 15, the locking screw 23 can be driven by rotating the rotating ball 24 to screw into the adjusting ring 18 and connect to the outer wall of the adjusting rod 19 by cooperating with the locking nut 22, and the position of the column adjusting rod 19 in the adjusting ring 18 is fixed by pressing against the adjusting rod 19, thereby fixing the height of the connecting rod 15. The surface of the adjusting rod 19 can be provided with anti-slip textures to improve the firmness of the contact between the adjusting rod 19 and the locking screw 23.

[0029] The upper side of the end of the frame 1 is provided with a mounting groove 25, and the product fixing chain group 3 includes a first fixing frame 26, a second fixing frame 27, and a chain group 38. The first fixing frame 26 and the second fixing frame 27 are installed in the mounting groove 25 at intervals in a vertical direction. The two ends of the chain group 38 are respectively connected to the first fixing frame 26 and the second fixing frame 27 for sliding up and down. The first fixing frame 26 and the second fixing frame 27 are vertically provided with a fixed oil cylinder 28 for pushing the chain group 38 to move up and down. The upper end of the first fixing frame 26 is rotatably connected with an upper shift rod 29, and the end of the upper shift rod 29 away from the first fixing frame 26 is snap-connected with the upper end of the second fixing frame 27. When fixing the stator 37, the upper shift rod 29 is separated from the upper end of the second fixing frame 27, rotated to a vertical state, and then the stator 37 is placed between the first fixing frame 26 and the second fixing frame 27 to the upper side of the chain group 38, and then the upper shift rod 29 is turned back and fixed to the upper end of the second fixing frame 27. After the outer city is fixed, the chain set 38 is driven to move upward by starting the fixing cylinder 28 until the upper side of the stator 37 is tightly pressed against the lower side of the upper shift rod 29 and the middle part of the chain set 38 is tightly pressed against.

[0030] A push rod 30 is installed at the top of the fixed oil cylinder 28, and a support ring 31 is arranged around the outer wall of the lower end of the push rod 30. A spring 32 is sleeved on the outer wall of the push rod 30 on the upper side of the support ring 31, and the spring 32 is in contact with the lower side of the end of the chain set 38. Through the cooperation between the push rod 30 and the spring 32, the spring 32 can be used as an intermediate piece for fixing the inductor and the chain set 38, and the elastic potential energy generated during the compression of the spring 32 can be used to push the chain set 38 against the lower side of the stator 37. In this way, the compression amount of the spring 32 can be used to control the force of the chain set 38 and the stator 37, and the problem of damage to the surface of the stator 37 caused by the force control error can be avoided when the fixed oil cylinder 28 directly drives the chain set 38 to press against the stator 37.

[0031] Embodiment 3: On the basis of the above-mentioned embodiment, a traveling support frame 33 is movably provided on the upper side of the guide rail 2 between the traveling support frame 9 and the product fixing chain group 3. By providing the traveling support frame 33, the middle part of the mandrel 36 can be supported during the process of pulling out the mandrel 36, so as to prevent the middle part of the mandrel 36 from bending during the pulling out process.

[0032] The lower end of the traveling support frame 33 is slidably connected to the guide rail 2, and a supporting oil cylinder 34 is vertically arranged inside the traveling support frame 33. The output end of the supporting oil cylinder 34 extends out of the upper end of the traveling support frame 33 and is connected to a supporting bracket 35. By arranging the supporting oil cylinder 34 and the supporting bracket 35, the height of the supporting bracket 35 can be adjusted to support the mandrel 36 to adapt to the size of different mandrels 36. A pump station 39 connected to the drawing oil cylinder 4, the fixed oil cylinder 28 and the supporting oil cylinder 34 is arranged on one side of the frame 1.

[0033] Although the present invention is described herein with reference to a number of illustrative embodiments of the present invention, it will be appreciated that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the present disclosure, drawings, and claims, a variety of variations and modifications may be made to the components and / or layout of the subject combination layout. In addition to the variations and modifications made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A demoulding device for a rubber stator of a screw drill, comprising a frame (1), characterized in that: The frame (1) is provided with a guide rail (2) along its length direction; a product fixing chain group (3) is installed at one end of the frame (1); a drawing cylinder (4) is slidably installed on the guide rail (2); a driving component for driving the drawing cylinder (4) to move along the guide rail (2) is installed on the side of the frame (1); the output end of the drawing cylinder (4) faces the product fixing chain group (3) and is connected to a rotating drawing box group (5).

2. The demoulding device for the rubber stator of a screw drill according to claim 1, characterized in that: The driving assembly comprises a chain (6), a driving sprocket (7), a driven sprocket (8) and a driving motor. The driving sprocket (7) and the driven sprocket (8) are respectively mounted on two ends of the guide rail (2). The driving sprocket (7) and the driven sprocket (8) are connected in transmission via the chain (6). The output shaft of the driving motor is connected in transmission to the driving sprocket (7). The pulling cylinder (4) is fixedly connected to the chain (6).

3. The demoulding device for the rubber stator of a screw drill according to claim 2, characterized in that: A traveling bracket (9) is slidably mounted on the guide rail (2), and the pulling cylinder (4) is mounted on the upper side of the traveling bracket (9); a pulling ratchet (10) parallel to the guide rail (2) is arranged on the upper side of the frame (1) along its length direction, and a pulling pawl (11) matching the pulling ratchet (10) is arranged on the traveling bracket (9); the pulling ratchet (10) and the pulling pawl (11) cooperate to limit the traveling bracket (9) to move only in a direction away from the cylinder of the product fixing chain group (3); the traveling bracket (9) and the chain (6) are fixedly connected.

4. The demoulding device for a rubber stator of a screw drill according to claim 1, characterized in that: The rotating draw box assembly (5) is provided with a connecting groove (12) on one side facing the product fixing chain assembly (3), an adjusting plate (13) is vertically provided in the connecting groove (12), an adjusting bar hole (14) penetrating both sides is vertically provided on the side facing the notch of the connecting groove (12), a connecting rod (15) is slidably provided in the adjusting bar hole (14), and the connecting rod (15) is respectively sleeved with a first limiting ring (16) and a second limiting ring (17) on both sides of the adjusting plate (13). ), an adjustment hole connected to the connecting groove (12) is provided on the upper side of the rotating draw box group (5), an adjustment ring (18) is installed in the adjustment hole, an adjustment rod (19) is vertically arranged in the adjustment ring (18), the upper end of the adjustment rod (19) is placed above the rotating draw box group (5), and the lower end is connected to the first limiting ring (16); the end of the connecting rod (15) away from the bottom of the connecting groove (12) is placed outside the connecting groove (12), and is rotatably connected to a rotating connecting seat (20).

5. The demoulding device for the rubber stator of a screw drill according to claim 4, characterized in that: A locking hole (21) is provided on the side of the adjusting ring (18) and is connected through the inside and outside. A locking nut (22) is installed on the adjusting ring (18) in alignment with the locking hole (21). A locking screw (23) is matched and connected to the inner thread of the locking nut (22). One end of the locking screw (23) is connected to the adjusting rod (19) in the adjusting ring (18), and the other end is connected to a rotating ball (24) on the outside of the locking nut (22).

6. The demoulding device for the rubber stator of a screw drill according to claim 1, characterized in that: The upper side of the end of the frame (1) is provided with a mounting groove (25), and the product fixing chain group (3) comprises a first fixing frame (26), a second fixing frame (27), and a chain group (38). The first fixing frame (26) and the second fixing frame (27) are installed in the mounting groove (25) at a vertical interval, and the two ends of the chain group (38) are respectively connected to the first fixing frame (26) and the second fixing frame (27) for sliding up and down. The first fixing frame (26) and the second fixing frame (27) are both vertically provided with a fixed oil cylinder (28) for pushing the chain group (38) to move up and down; the upper end of the first fixing frame (26) is rotatably connected to an upper shift rod (29), and the end of the upper shift rod (29) away from the first fixing frame (26) is buckled and connected to the upper end of the second fixing frame (27).

7. The demoulding device for the rubber stator of a screw drill according to claim 6, characterized in that: A push rod (30) is installed at the top end of the fixed oil cylinder (28), and a support ring (31) is provided on the outer wall surrounding the lower end of the push rod (30). A spring (32) is sleeved on the upper side of the support ring (31) on the outer wall of the push rod (30), and the spring (32) is connected to the lower side of the end of the chain group (38).

8. The demoulding device for a rubber stator of a screw drill according to claim 1, characterized in that: A traveling support frame (33) is movably provided on the upper side of the guide rail (2) between the traveling frame (9) and the product fixing chain assembly (3).

9. The demoulding device for the rubber stator of a screw drill according to claim 8, characterized in that: The lower end of the walking support frame (33) is slidably connected to the guide rail (2), a supporting oil cylinder (34) is vertically arranged in the walking support frame (33), and the output end of the supporting oil cylinder (34) extends out of the upper end of the walking support frame (33) and is connected to a supporting bracket (35).

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