Stud forward and reverse screening device
By designing a forward and reverse screening device that utilizes the uneven weight of double-head bolts, the problem that workers are prone to reverse double-head bolts is solved, and the correct screening and use of bolts is achieved, which improves work efficiency and reduces production costs.
Patent Information
- Application Number
- CN202421485965.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-06-26
AI Technical Summary
When workers use double-headed bolts, they are prone to reverse the front and back ends, resulting in the bolts being scrapped or needing to be disassembled and assembled, affecting work efficiency and production costs.
A double-head bolt forward and reverse screening device is designed. Taking advantage of the uneven weight of the double-head bolt, the bolt is lifted up and falls into the clamping range of the clamping mechanism through the feeding mechanism. The cooperation between the support mechanism and the clamping mechanism is used to ensure that the bolt falls inclined with one of the heavy ends, realizing forward and reverse screening.
It effectively solves the technical problem of workers in counter-double-headed bolts, improves work efficiency and reduces production costs, and ensures the correct screening and use of bolts.
Smart Images
Figure CN222766777U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of discharging equipment, in particular to a forward and reverse screening device for stud bolts. Background Art
[0002] Stud bolts are also called double-headed screws or double-headed studs. They are widely used in the machinery manufacturing industry. For example, they are used to fix accessories on the main body of large equipment, such as sight glasses, mechanical seal seats, reducer racks, etc. The middle of the stud bolt is a bare rod with threads on both ends. One end is screwed into the main body, and the other end is installed with a nut after the accessories are installed. If the accessories are frequently disassembled, the threads on the stud bolts are worn or damaged. At this time, it is very convenient to replace them with new stud bolts.
[0003] The stud bolt 1 produced by the applicant is as follows Figure 1 As shown, the lengths of the threaded segments 11 at both ends are not equal, which results in uneven weights at both ends of the stud bolt 1. Specifically, the end with the shorter threaded segment 11 is heavier than the end with the longer threaded segment 11. In other types of stud bolts, the lengths of the threaded segments 11 at both ends are the same, but the specifications and sizes of the threaded segments 11 are inconsistent, and one end is heavy and the other end is light.
[0004] In the production process of stud bolts, although there is a slight difference between the two ends, because they are both threads, workers will inevitably be negligent under long-term repetitive labor and get the direction wrong when taking the stud bolts. Due to the difference in threads at the two ends, the stud bolts will often be directly scrapped or need to be removed and reinstalled, which has an adverse impact on work efficiency and production costs. Utility Model Content
[0005] The utility model provides a stud bolt positive and negative screening device, which can solve the technical problem that workers easily mix up the positive and negative ends of stud bolts.
[0006] This application provides the following technical solutions:
[0007] The forward and reverse screening device for stud bolts comprises a workbench, a frame fixedly mounted on the workbench, a double-layer plywood fixedly mounted on the frame, a top point fixedly arranged between the double-layer plywood, a supporting mechanism fixedly mounted above the top point for supporting the stud bolts and a clamping mechanism for clamping the stud bolts, and a feeding mechanism for moving the stud bolts into the clamping range of the clamping mechanism, wherein when the clamping mechanism clamps the stud bolts, the top point corresponds to the middle position of the stud bolts.
[0008] Beneficial effect: This scheme mainly utilizes the characteristic that one end of the stud bolts to be screened is heavy and the other end is light. The feeding mechanism is used to lift the stud bolts and drop them into the clamping range of the clamping mechanism. The supporting mechanism first temporarily supports the stud bolts, and then the clamping mechanism starts to clamp and fix the two ends of the stud bolts. The process of clamping the stud bolts by the clamping mechanism is actually to position the stud bolts, ensuring that the center of the stud bolts can directly contact the top of the support plate after the supporting mechanism is separated from the support for the stud bolts and the clamping mechanism is loosened. Under the action of the top support point, it is ensured that each time the stud bolts always tilt toward the heavier end of the two ends and fall, which effectively solves the technical problem that workers easily confuse the positive and negative ends of the stud bolts, which is conducive to the smooth progress of the next process, and is conducive to the improvement of work efficiency and the reduction of production costs.
[0009] Further, as an improvement, the double-layered clamping plate includes an inner clamping plate at one end facing the operator and an outer clamping plate opposite to the inner clamping plate, and an observation port is provided at a position on the inner clamping plate corresponding to the top end.
[0010] Beneficial effect: The function of the observation port is to facilitate workers to visually observe the positive and negative screening process of the stud bolts, and if any abnormality occurs, they can stop it in time.
[0011] Furthermore, as an improvement, it also includes a discharge channel for guiding the screened stud bolts, the top end is fixedly arranged on a side of the inner clamping plate close to the outer clamping plate, and the discharge channel includes a left channel and a right channel respectively located on both sides of the top end, and the ends of the left channel and the right channel converge into a discharge port opened on the side wall of the inner clamping plate.
[0012] Beneficial effect: The discharge channel is used to guide the stud bolts after the top adjustment, and the ends of the left channel and the right channel are combined into the same discharge port to discharge the material, ensuring that each stud bolt can be discharged from the same position to enter the next process.
[0013] Further, as an improvement, the clamping mechanism includes a cylinder and a sliding base fixedly mounted on a frame, and two oppositely arranged clamping blocks driven by the cylinder, the clamping blocks are slidably connected to the sliding base, and the clamping blocks are symmetrically arranged with the top as the center.
[0014] Beneficial effect: Two clamping blocks arranged opposite to each other and driven by a cylinder are used to firmly clamp the two ends of the stud bolt, which has a simple structure and stable operation. The clamping blocks are symmetrically arranged with the top as the center to ensure accurate positioning of the stud bolt.
[0015] Further, as an improvement, the feeding mechanism includes a push block that can slide along the surface of the inner clamping plate, and the top surface of the push block is an inclined surface, and the inclined surface is inclined downward from one end away from the inner clamping plate to the other end.
[0016] Beneficial effect: The push block is used to lift the stud bolts to be screened, and the top surface of the push block is set as an inclined surface, and the inclined surface is inclined downward from one end away from the inner clamping plate to the other end, so that the stud bolts will not fall off during the process of being lifted by the push block, and when the push block moves to a height exceeding the inner clamping plate, the stud bolts that have lost the obstruction of the inner clamping plate will roll along the inclined surface between the inner bed board and the outer bed board and fall into the clamping range of the clamping block.
[0017] Further, as an improvement, the feeding mechanism also includes an enclosure fixedly mounted on the workbench and an inclined rolling plate fixedly mounted on the bottom of the enclosure.
[0018] Beneficial effect: batches of stud bolts are placed on an inclined rolling plate, and the stud bolts roll in the direction of the push block under the guidance of the enclosure, without the need to place them one by one manually, thus improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is an axonometric view of a stud bolt in the prior art;
[0020] Figure 2 This is an axonometric view of the first embodiment of the utility model (hiding the left enclosure, right enclosure, middle enclosure, and limiter plate);
[0021] Figure 3 This is an axonometric diagram of the feeding mechanism in the first embodiment of the utility model;
[0022] Figure 4 for Figure 2 Enlarged view of the inner and outer splints;
[0023] Figure 5 For comparison Figure 4 Axonometric view with the inner plywood hidden;
[0024] Figure 6 for Figure 1 Axonometric view of the back of the center inner splint. DETAILED DESCRIPTION
[0025] The following is further described in detail through specific implementation methods:
[0026] The marks in the drawings in the specification include: stud bolt 1, threaded section 11, workbench 2, frame 3, inner clamping plate 4, top 41, left channel 42, right channel 43, protrusion 44, discharge port 45, observation port 46, outer clamping plate 5, supporting mechanism 6, clamping mechanism 7, third cylinder 71, slide 72, clamping block 73, feeding mechanism 8, right enclosure plate 81, middle enclosure plate 82, first push block 83, second push block 84, rolling plate 85, limiting plate 86, first cylinder 87.
[0027] Embodiment 1
[0028] Combination Figure 1-Figure 6 As shown, the stud bolt positive and negative screening device includes Figure 2 The horizontally fixed workbench 2, the vertically fixed frame 3, the inner clamping plate 4 at one end facing the operator, and the inner clamping plate 4 arranged opposite to the inner clamping plate 4 are shown. Figure 5 The outer clamping plate 5 shown in the figure, the top 41 located between the inner clamping plate 4 and the outer clamping plate 5, and the stud bolt 1 used to support the stud bolt 1 are as shown in the figure. Figure 5 The supporting mechanism 6 shown is a clamping mechanism 7 for clamping the stud bolt 1 , and a feeding mechanism 8 for moving the stud bolt 1 into the clamping range of the clamping mechanism 7 .
[0029] like Figure 3 As shown, the feeding mechanism 8 includes panels (including left panel, right panel 81, middle panel 82) vertically fixed in three directions on the workbench 2, a primary push block 83 and a secondary push block 84 sliding in the vertical direction of the workbench 2, for the convenience of display Figure 6 The left enclosure is hidden in the middle, and a rolling plate 85 is tilted near the bottom of the three enclosures. A limit plate 86 is fixedly installed between the left enclosure and the right enclosure 81. The limit plate 86 is located above the end of the rolling plate 85 away from the middle enclosure 82, and a gap is reserved between the limit plate 86 and the rolling plate 85 for only one stud bolt 1 to pass through. The first push block 83 and the second push block 84 are both driven by the first cylinder 87 installed at the bottom. The top surfaces of the first push block 83 and the second push block 84 are both inclined surfaces, and the inclined surface and the rolling plate 85 are The inclination direction is consistent, wherein the first-stage push block 83 can slide along the surface of the second-stage push block 84 under the drive of the first cylinder 87, and the second-stage push block 84 slides along the side of the inner clamping plate 4 away from the outer clamping plate 5. When the stud bolts 1 are placed on the rolling plate 85 in batches, the stud bolts 1 pass through the gap under the limiting plate 86 one by one and stop on the first-stage push block 83, and then the first-stage push block 83 pushes the stud bolts 1 onto the second-stage push block 84, and the second-stage push block 84 pushes the stud bolts 1 into the clamping range of the clamping mechanism 7.
[0030] like Figure 5 As shown, the supporting mechanism 6 includes a second cylinder and two supporting blocks passing through the outer clamping plate 5 and reciprocating in a direction perpendicular to the outer clamping plate 5. Before the stud bolt 1 is clamped by the clamping mechanism 7, the stud bolt 1 is temporarily placed on the top surfaces of the two supporting blocks, and the top surface height of the supporting blocks is slightly higher than the top 41.
[0031] The frame 3 is an L-shaped structure as a whole, including an integrally formed long rod and a short rod, wherein the short rod is located above the long rod, and the clamping mechanism 7 is fixedly installed at the bottom of the short rod. Figure 4As shown, the clamping mechanism 7 includes a third cylinder 71, a sliding base, two oppositely arranged slides 72 slidably connected to the sliding base, and an L-shaped clamping block 73 fixedly installed at the bottom of each slide 72. The slide 72 is driven by the third cylinder 71 and drives the reciprocating translation of the clamping block 73 to achieve the purpose of clamping or loosening the two ends of the stud bolt 1. The clamping block 73 is symmetrically arranged with the top 41 as the center, and is always symmetrical with the top 41 as the reference during the translation process of the clamping block 73. The purpose of clamping the stud bolt 1 with the clamping mechanism is actually to position the stud bolt 1 to ensure that the middle position of the stud bolt 1 contacts the top 41 every time.
[0032] The back side of the inner splint 4 is as shown in FIG. Figure 6 As shown, two arc grooves are provided, and the two arc grooves correspond to the left channel 42 and the right channel 43 in the discharge channel respectively. A convex block 44 is formed in the middle of the left channel 42 and the right channel 43. The top 41 is arranged on the top of the convex block 44. The top 41 shrinks from both sides to the middle with a certain taper. When the stud bolt 1 loses the support of the support mechanism 6 and the clamping of the clamping mechanism 7, the middle position of the stud bolt 1 will contact the top 41. Since one end of the stud bolt 1 is heavier than the other end, the stud bolt 1 will The heavy end will fall downward into the left channel 42 or the right channel 43, and the ends of the left channel 42 and the right channel 43 will converge into the discharge port 45 opened on the side wall of the inner clamping plate 4, so that each stud bolt 1 that has been screened positively and negatively (the heavy end is regarded as the positive end, and the light end is regarded as the negative end) is discharged from the discharge port 45 in a centralized manner, which is convenient for entering the next process. A through groove is also opened on the front side of the inner clamping plate 4 as an observation port 46, so that the top end 41 is exposed, which is convenient for the operator to observe the screening situation.
[0033] The specific application process is as follows:
[0034] When in use, the stud bolts 1 to be screened are put into the rolling plate 85 in batches, and the stud bolts 1 pass through the gap under the limiting plate 86 one by one and stop on the primary push block 83, and then the primary push block 83 pushes the stud bolts 1 to be screened onto the secondary push block 84, and the secondary push block 84 continues to push the stud bolts 1. When the secondary push block 84 rises to exceed the top of the inner clamping plate 4, the stud bolts 1 roll along the inclined surface on the secondary push block 84 to the support block above the top 41 and fall into the clamping range of the clamp block 73; then the third cylinder 71 drives the clamp blocks 73 on both sides to gradually move toward each other The two ends of the stud bolt 1 are clamped together to firmly clamp them. The clamping process is actually to adjust the position of the stud bolt 1 so that the middle position of the stud bolt 1 can correspond to the top point 41. Then the second cylinder 71 and the third cylinder 71 respectively drive the support block and the clamping block 73 to loosen the restriction on the stud bolt 1, so that the stud bolt 1 falls freely and the middle position of the stud bolt 1 will contact the top point 41. Since one end of the stud bolt 1 is heavier than the other end, the stud bolt 1 will fall downward into the left channel 42 or the right channel 43 with the heavier end, and finally be discharged from the same discharge port 45.
[0035] Based on the characteristic of uneven weight at both ends of the stud bolt 1, this solution creatively designs a positive and negative screening device for this type of stud bolt 1, which can solve the technical problem that workers easily confuse the positive and negative ends of the stud bolt 1, and is conducive to improving work efficiency and reducing production costs.
[0036] The above is only an embodiment of the utility model. The utility model is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. Stud bolt positive and negative screening device, characterized by: It includes a workbench, a frame fixedly installed on the workbench, a double-layer plywood fixedly installed on the frame, a top point fixedly arranged between the double-layer plywood, a supporting mechanism fixedly installed above the top point for supporting stud bolts and a clamping mechanism for clamping the stud bolts, and a loading mechanism for moving the stud bolts into the clamping range of the clamping mechanism. When the clamping mechanism clamps the stud bolts, the top point corresponds to the middle position of the stud bolts.
2. The stud bolt forward and reverse screening device according to claim 1, characterized in that: The double-layer clamping plate comprises an inner clamping plate at one end facing the operator and an outer clamping plate opposite to the inner clamping plate, and an observation port is provided at a position of the inner clamping plate corresponding to the top end.
3. The stud bolt forward and reverse screening device according to claim 2, characterized in that: It also includes a discharge channel for guiding the screened stud bolts, the top is fixedly arranged on a side of the inner clamping plate close to the outer clamping plate, and the discharge channel includes a left channel and a right channel respectively located on both sides of the top, and the ends of the left channel and the right channel converge into a discharge port opened on the side wall of the inner clamping plate.
4. The stud bolt forward and reverse screening device according to claim 3, characterized in that: The clamping mechanism comprises a cylinder and a sliding base fixedly mounted on a frame, and two clamping blocks arranged opposite to each other and driven by the cylinder. The clamping blocks are slidably connected to the sliding base, and the clamping blocks are symmetrically arranged with the top as the center.
5. The stud bolt forward and reverse screening device according to claim 4, characterized in that: The feeding mechanism comprises a push block which can slide along the surface of the inner clamping plate. The top surface of the push block is an inclined surface which slopes downward from one end away from the inner clamping plate to the other end.
6. The stud bolt forward and reverse screening device according to claim 5, characterized in that: The feeding mechanism also includes a surrounding plate fixedly mounted on the workbench and a rolling plate fixedly mounted on the bottom of the surrounding plate and arranged obliquely.