Workpiece shot blasting feeding structure

By designing the feeding structure of the hopper and locking hook assembly, the problem of low efficiency in transferring large-size bolts was solved, realizing the overall movement and flipping unloading of bolts, thus improving the efficiency and quality of shot blasting.

CN224445633UActive Publication Date: 2026-07-03CHONGQING STANDARD FASTNERS IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING STANDARD FASTNERS IND CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

When large bolts are transferred to the shot blasting machine hopper, the transfer efficiency is low and it may cause impact between the bolts, affecting the quality.

Method used

A feeding structure including a hopper, a horizontal conveying component, and a locking hook component is designed. The material basket is moved to the hopper by the horizontal conveying component, and the locking hook component is used to stably connect the material basket, so as to realize the overall movement and flipping of the material basket for unloading, thereby improving the transfer efficiency.

Benefits of technology

It enables labor-saving and reliable overall movement of large-diameter bolts, improves transfer efficiency, prevents impact between bolts, and ensures the smooth progress of shot blasting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of workpiece processing, specifically disclose a workpiece shot blasting treatment's feeding structure, including including hopper and the material frame that contains a plurality of big specification bolts, the top of material frame is equipped with the lug, lug horizontal through -hole is provided with on, still including the horizontal transmission subassembly of material frame, the end of horizontal transmission subassembly with the side of hopper is opposite, the top side of hopper is equipped with the first open mouth of discharge, the side of hopper is close to with horizontal transmission subassembly and is equipped with the second open mouth, a plurality of locking hook components, part locking hook components with the lug hole of lug detachable connection, part locking hook components can be with the upper surface of material frame and abut. In the scheme, horizontal transmission subassembly can cooperate with the second open mouth of hopper, make the material basket that is equipped with a plurality of big specification bolts whole movement convenient and reliable, and improve the transfer efficiency to a plurality of big specification bolts.
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Description

Technical Field

[0001] This utility model relates to the field of workpiece processing technology, and in particular to a loading structure for shot blasting of workpieces. Background Technology

[0002] In steel structure construction, large-diameter bolts are used to connect major structural components such as steel beams and columns, including the steel frame connections in large factories, high-rise buildings, and stadiums. During the production process, the surface of large-diameter bolts may be contaminated with impurities such as oxide scale, rust, oil, and dust. Shot blasting effectively removes these impurities by using high-speed shot to impact the bolt surface, restoring it to a clean state and providing a good foundation for subsequent surface treatment or painting.

[0003] After the rough machining of large bolts in the previous step, several bolts are placed into the corresponding material baskets at the same time. Then, the large bolts in the collection baskets are transferred in batches. When they are transferred to the shot blasting machine, the large bolts need to be transferred to the hopper of the shot blasting machine, and then the hopper transfers the large bolts to the shot blasting machine for shot blasting. The large number of large bolts makes the overall weight of the material basket heavy, which is inconvenient to tip. If the bolts are transferred by tipping, it may cause impact between the bolts, affecting the overall weight of the bolts. If the bolts are transferred one by one, the bolt transfer efficiency will be low. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a feeding structure for shot blasting of workpieces, which solves the problem of low transfer efficiency of large-diameter bolts when they need to be transferred to the shot blasting machine hopper after being placed in a material basket.

[0005] To achieve the above objectives, the basic solution of this utility model is as follows: a feeding structure for shot blasting of workpieces, comprising a hopper and a material frame for holding several large-diameter bolts, the top of the material frame being provided with a hanging lug, and a hanging hole being horizontally provided through the hanging lug, further comprising:

[0006] The horizontal conveying component of the conveying frame has its end opposite to one side of the hopper. The top side of the hopper is provided with a first opening for discharging material, and the hopper is provided with a second opening near the side of the horizontal conveying component.

[0007] Several locking hook components are provided. Some locking hook components are detachably connected to the hook holes of the hook ears, and some locking hook components can abut against the upper surface of the material frame.

[0008] The technical principle of this utility model is as follows: When transferring bolts into the hopper, the basket containing several large bolts is first placed on the horizontal conveying assembly, and the basket can be moved horizontally along the horizontal conveying assembly towards the second opening of the hopper, making the transfer process more convenient and labor-saving; after the basket is transferred into the hopper through the second opening, the locking hook assembly can be connected to the hanging hole at the upper end of the hanging ear.

[0009] Then, under the hydraulic power of the shot blasting machine, the hopper carries two sets of material frames and several bolts to the feed inlet. Then, the hopper is flipped so that several bolts to be shot blasted enter the shot blasting machine together.

[0010] In the above process, the horizontal conveying component can cooperate with the second opening of the hopper to make the overall movement of the basket containing several large bolts convenient and reliable, and improve the transfer efficiency of several large bolts.

[0011] Furthermore, the horizontal transport component includes:

[0012] Two sets of support frames are provided, with the support frames horizontally arranged and the ends of the support frames abutting against the lower edge of the second opening of the hopper.

[0013] Several rollers are horizontally rotatably installed between two support frames. The horizontal plane where the top tangent of the rollers is located is higher than the upper surface of the support frame and can be higher than the lowest surface of the second opening of the hopper.

[0014] With the above setup, the basket containing several large bolts is placed on the roller, and then the basket is pushed horizontally along the direction of the support frame and towards the second opening of the hopper. At this time, the friction between the basket and the roller is converted into the power for the roller to rotate relative to the support frame, which in turn can easily push the basket to move horizontally on the roller, so that the bolts and the basket can move as a whole towards the hopper and the second opening. The whole transfer process is simple, labor-saving and reliable.

[0015] Furthermore, the locking hook assembly includes:

[0016] The locking bolt can pass through the hanging hole of the hanging ear and be detachably connected to the hanging ear or abut against the upper surface of the material frame. The end of the locking bolt passes through the vertical side wall of the hopper and is installed horizontally on the hopper.

[0017] The locking part controls whether the locking bolt abuts against the material frame or the hanging lug.

[0018] With the above settings, the locking bolt can be inserted into the hanging hole of the hanging ear and then locked by the locking part, so that the connection between the locking bolt and the material frame is stable, and the locking bolt can provide stable support to the material frame when the hopper is tilted to unload.

[0019] Furthermore, the locking part includes:

[0020] The adjusting spring and the locking bolt have an annular groove in the middle for the adjusting spring to be inserted and coaxially installed. One end of the adjusting spring abuts against the side of the annular groove of the locking bolt near the center of the hopper, and the other end of the adjusting spring abuts against the inner wall of the center of the hopper. The end of the locking bolt away from the center of the hopper can abut against the outer wall of the hopper.

[0021] With the above setup, when the material basket moves to the second opening of the hopper, the horizontally pulled locking bolt moves away from the center of the hopper, compressing the adjusting spring. The end of the locking bolt near the material frame avoids the hanging lug of the material frame, allowing the material basket to continue being pushed into the hopper. When the hanging hole of the hanging lug is aligned with the end of the locking bolt away from the second opening, the material basket is stopped, and the locking bolt is loosened. Under the elastic force of the adjusting spring, the locking bolt automatically springs back and inserts into the hanging hole of the hanging lug, thus locking the hanging lug of the material frame. At this time, the end of the locking bolt near the second opening is vertically aligned with the surface of the material basket. The locking and loosening adjustment of the locking bolt for the material frame is convenient, simple, and efficient, further improving the feeding efficiency of bolts to be shot blasted.

[0022] Furthermore, the locking part also includes:

[0023] The adjusting box is fixedly installed on one side near the center of the hopper. The adjusting box has a through hole through which the locking bolt passes, and the adjusting spring is located inside the adjusting box.

[0024] With the above setup, the adjusting box wraps around the annular groove of the locking bolt and the location of the adjusting spring, protecting the locking bolt and the adjusting bolt, while also reinforcing a localized area of ​​the hopper.

[0025] Furthermore, several locking hook assemblies are located on the same horizontal plane.

[0026] With the above setup, when the material basket slightly flips and impacts the ends of the remaining locking bolts that are not connected to the hanging hole, the impact force can cause the bolts piled in the material basket to be slightly vibrated, which facilitates the separation of the bolts from the material basket, so that several bolts can be smoothly put into the shot blasting machine.

[0027] Furthermore, the vertical distance between the horizontal center of the locking bolt and the bottom side of the second opening is the same as the vertical distance between the center of the hanging hole and the bottom side of the second opening.

[0028] With the above settings, when the material frame enters the hopper horizontally, the hanging hole on the material frame can be on the same horizontal plane as the locking bolt, which facilitates the connection between the locking bolt and the hanging hole. There is no need to move the material frame vertically, making feeding more labor-saving and efficient. Attached Figure Description

[0029] Figure 1This is a schematic diagram of the loading structure for shot blasting of a workpiece in the axial direction according to an embodiment of the present invention.

[0030] Figure 2 This is a top view of a loading structure for shot blasting of a workpiece according to an embodiment of the present invention.

[0031] Figure 3 This is a longitudinal sectional view of a single locking hook assembly.

[0032] In the above-mentioned attached figures: hopper 10, first opening 101, second opening 102, material frame 20, hanging ear 201, hanging hole 202, support frame 30, roller 301, locking bolt 40, annular groove 401, adjusting spring 402, adjusting box 403, and through hole 404. Detailed Implementation

[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0034] This embodiment is basically as follows: Figure 1 and Figure 2 As shown in the figure, this utility model embodiment proposes a rod quenching disc spraying mechanism, including a quenching cooling box 10, a circulating pump 20 for circulating and cooling the quenching medium, a rotating spraying unit, and two rotating units for rotating the rod. The quenching cooling box 10 has a feed inlet on one side and a discharge hole 101 on the other side. The feed inlet and the discharge hole 101 are horizontally opposite each other. The two rotating units for rotating the rod are located at the feed inlet and the discharge hole 101, respectively.

[0035] This embodiment is basically as follows: Figure 1 , Figure 2 and Figure 3 As shown in the figure, this utility model embodiment proposes a feeding structure for shot blasting of workpieces, including a hopper 10, a material frame 20 for holding several large-size bolts, a horizontal conveying component for conveying the material frame 20, and four locking hook components. The top surface of the material frame 20 has two integrally formed hanging ears 201, which are located on the left and right sides of the material frame 20, respectively. The hanging ears 201 are horizontally provided with hanging holes 202. At the same time, the top side of the hopper 10 is provided with a first opening 101 for discharging material, and the left side of the hopper 10 is provided with a second opening 102.

[0036] like Figure 1As shown, the horizontal conveying assembly includes two sets of support frames 30 and several rollers 301. The support frames 30 are horizontally arranged, and the right end of the support frame 30 can abut against the lower edge of the second opening 102 of the hopper 10. Several rollers 301 are horizontally rotatably installed between the two support frames 30. The horizontal plane where the top tangent of the rollers 301 is located is higher than the upper surface of the support frame 30 and can be higher than the lowest surface of the second opening 102 of the hopper 10. The overall width of the rollers 301 and the two sets of support frames 30 is the same as the width of the second opening 102, and the second opening 102 of the hopper 10 can accommodate two material frames 20 simultaneously in the horizontal direction.

[0037] like Figure 1 and Figure 3 As shown, the four locking hook assemblies are divided into two groups, with the two groups located on the left and right sides of the hopper 10 respectively. Each locking hook assembly includes a locking bolt 40 and a locking part that controls whether the locking bolt 40 abuts against the material frame 20 or the hanging ear 201. The locking part includes an adjusting spring 402 and an adjusting box 403. The locking bolt 40 can pass through the hanging hole 202 of the hanging ear 201 and be detachably connected to the hanging ear 201 or abut against the upper surface of the material frame 20. The end of the locking bolt 40 passes through the vertical side wall of the hopper 10 and is horizontally installed on the hopper 10. Figure 3 As shown, the locking bolt 40 has an annular groove 401 in the middle for the adjusting spring 402 to be inserted and coaxially installed. One end of the adjusting spring 402 abuts against the side end face of the annular groove 401 of the locking bolt 40 near the center of the hopper 10, and the other end of the adjusting spring 402 abuts against the inner wall of the center of the hopper 10. The end of the locking bolt 40 away from the center of the hopper 10 can abut against the outer wall of the hopper 10. The adjusting box 403 is fixedly installed on the side near the center of the hopper 10. The adjusting box 403 has a through hole 404 through which the locking bolt 40 passes, and the adjusting spring 402 is located inside the adjusting box 403.

[0038] In addition, the four locking hook assemblies are located on the same horizontal plane, and the vertical distance between the horizontal center of the locking bolt 40 and the bottom side of the second opening 102 is the same as the vertical distance between the center of the hook hole 202 and the bottom side of the second opening 102.

[0039] In this embodiment, the loading structure for shot blasting of workpieces is used by first placing a basket containing several large bolts onto the roller 301, and then horizontally pushing the basket 20 along the direction of the support frame 30 and towards the second opening 102 of the hopper 10. At this time, the friction between the basket and the roller 301 is converted into the power for the roller 301 to rotate relative to the support frame 30, which in turn can easily push the basket to move horizontally on the roller 301, so that the bolts and the basket 20 can move as a whole towards the hopper 10 and the second opening 102. The entire transfer process is simple, labor-saving and reliable.

[0040] When the material basket moves to the second opening 102 of the hopper 10, the locking bolt 40 is pulled horizontally to move away from the center of the hopper 10. The adjusting spring 402 is compressed, and the end of the locking bolt 40 near the material frame 20 avoids the hanging ear 201 of the material frame 20, allowing the material basket to continue to be pushed towards the hopper 10. When the hanging hole 202 of the hanging ear 201 is aligned with the end of the locking bolt 40 on the side away from the second opening 102, the movement of the material basket is stopped, and the locking bolt 40 is loosened. Under the elastic force of the adjusting spring 402, the locking bolt 40 automatically rebounds and inserts into the hanging hole 202 of the hanging ear 201, thus locking the hanging ear 201 of the material frame 20. At this time, the end of the locking bolt 40 near the second opening 102 is vertically aligned with the surface of the material basket.

[0041] The two sets of material frames 20 are quickly installed and limited into the hopper 10 in the manner described above. Under the hydraulic power of the shot blasting machine, the hopper 10 can carry the two sets of material frames 20 and several bolts to the feed inlet. Then, the hopper 10 is flipped so that several bolts to be shot blasted enter the shot blasting machine together. When the hopper 10 flips to unload, a single material basket is limited by the two sets of locking bolts 40 and the other side of the hopper 10, which allows the material basket to unload quickly while preventing it from flipping. When the material basket slightly flips and impacts the end of the locking bolt 40 near the second opening 102, the impact force can cause the bolts accumulated in the material basket to be slightly vibrated, which facilitates the separation of the bolts from the material basket, so that several bolts can enter the shot blasting machine smoothly.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A feeding structure for workpiece shot blasting, comprising a hopper and a frame containing a plurality of large-size bolts, a lug being arranged on the top of the frame, and a lug hole being horizontally arranged through the lug. Also includes: A horizontal conveying assembly for conveying material frames, wherein the end of the horizontal conveying assembly is opposite to one side of the hopper, the top side of the hopper is provided with a first opening for discharging material, and the hopper is provided with a second opening near the side of the horizontal conveying assembly; Several locking hook assemblies, some of which are detachably connected to the hook hole of the hook ear, and some of which can abut against the upper surface of the material frame.

2. The feeding structure for a workpiece shot blasting process according to claim 1, wherein, The horizontal transmission component includes: Two sets of support frames are provided, the support frames are horizontally arranged, and the ends of the support frames can abut against the lower edge of the second opening of the hopper; Several rollers are horizontally rotatably mounted between two support frames, with the horizontal plane containing the top tangent of the rollers being higher than the upper surface of the support frames and potentially higher than the lowest surface of the second opening of the hopper.

3. The feeding structure for a workpiece shot blasting process according to claim 1 or 2, characterized in that, The locking hook assembly includes: The locking bolt can pass through the hanging hole of the hanging ear and be detachably connected to the hanging ear or abut against the upper surface of the material frame. The end of the locking bolt passes through the vertical side wall of the hopper and is installed horizontally on the hopper. The locking part controls whether the locking bolt abuts against the material frame or the hanging lug.

4. The feeding structure for workpiece shot blasting treatment according to claim 3, characterized in that, The locking part includes: The adjusting spring has an annular groove at the middle of the locking bolt for the adjusting spring to be inserted and coaxially installed. One end of the adjusting spring abuts against the end face of the annular groove of the locking bolt near the center of the hopper, and the other end of the adjusting spring abuts against the inner wall of the center of the hopper. The end of the locking bolt away from the center of the hopper can abut against the outer wall of the hopper.

5. The feeding structure for workpiece shot blasting as claimed in claim 4, wherein, The locking part further includes: An adjusting box is fixedly installed on one side near the center of the hopper. The adjusting box has a through hole through which a locking bolt passes, and the adjusting spring is located inside the adjusting box.

6. The feeding structure for a workpiece shot blasting process as claimed in claim 1, wherein, Several of the aforementioned locking hook assemblies are located on the same horizontal plane.

7. The feeding structure for a workpiece shot blasting process as claimed in claim 3, wherein, The vertical distance between the horizontal center of the locking bolt and the bottom side of the second opening is the same as the vertical distance between the center of the hanging hole and the bottom side of the second opening.