A machining apparatus for hardware workpieces

Abstract

This invention relates to the field of shearing machine technology, specifically to a processing device for hardware workpieces; it includes a shearing table and a discharge trough on the rear side of the shearing table; a discharge slope is fixedly connected to the inner side of the discharge trough; a fixed blade is embedded in the front position of the top of the discharge trough; an inclined moving seat is provided above the fixed blade; seat ears are fixedly connected to the left and right sides of the moving seat; the seat ears are connected to the shearing table through a hydraulic cylinder; an inclined blade groove is provided on the lower surface of the moving seat; multiple cutting blades are slidably connected in the blade groove; because the cutting blade that has completed shearing is pulled upward by the corresponding tension spring after shearing, the cutting blade that has completed shearing will not squeeze the sheared plate during the next cutting process, thereby greatly reducing the deformation of the plate after shearing, improving the flatness of the plate after shearing, and thus facilitating subsequent stamping and improving the quality of hardware workpieces.

Description

Technical Field

[0001] This invention relates to the field of shearing machine technology, specifically to a processing device for hardware workpieces. Background Technology

[0002] Hardware components refer to parts or finished products made from metal materials (such as iron, steel, stainless steel, aluminum, etc.) through processes such as stamping, turning, forging, cutting, and welding. They are widely used in many fields such as machinery manufacturing, building decoration, electronic equipment, automotive industry, and household goods. Based on different applications and precision requirements, hardware components can be divided into two main categories: general hardware components and precision hardware components. Washers are common hardware components. During processing, washers require shearing machines to cut sheet metal to the appropriate size, and then stamping the sheet metal into washers using stamping equipment.

[0003] A shearing machine is a machine that uses one blade (moving blade) to reciprocate linearly relative to another blade (fixed blade) to shear sheet metal. Taking the two blades arranged vertically as an example, during the shearing process of the inclined moving blade moving down in conjunction with the fixed blade, the intersection of the moving blade and the fixed blade is the shearing point. The shearing point changes horizontally as the moving blade moves down, so that the sheet metal is sheared horizontally and sequentially, similar to the action of "scissors," hence the name shearing machine. However, during the shearing process of the sheet metal formed by the moving blade and the fixed blade, because the moving blade is inclined, the part of the moving blade that has completed the shearing will move down along with the other parts, so that the used part of the moving blade will exert a downward compressive force on the sheet metal that has been sheared. Various parts of the sheet metal will be cut and compressed sequentially, so that the sheet metal cut by the shearing machine is deformed as a whole, that is, bent into an arc shape. The arc-shaped sheet metal affects the placement of blanks in subsequent stamping equipment, and even affects the flatness and quality of the gaskets after forming. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes a processing device for hardware workpieces. In this invention, the cutting blade that has completed the shearing is pulled upward by the corresponding tension spring after shearing to avoid the next cutting blade. This prevents the cutting blade that has completed the shearing from squeezing the sheared sheet material, thereby greatly reducing the deformation of the sheet material after shearing. This improves the flatness of the sheet material after shearing, which in turn facilitates subsequent stamping and improves the quality of the hardware workpieces.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: A processing equipment for hardware workpieces, comprising a shearing table and a discharge chute on the rear side of the shearing table; a discharge slope is fixedly connected to the inner side of the discharge chute; a fixed blade is embedded in the front position of the top of the discharge chute; an inclined movable seat is provided above the fixed blade; seat ears are fixedly connected to the left and right sides of the movable seat; the seat ears are connected to the shearing table via a hydraulic cylinder; an inclined blade groove is provided on the lower surface of the movable seat; multiple cutting blades are slidably connected up and down in the blade groove; the multiple cutting blades are inclinedly distributed in the left and right directions. The components are combined to form an inclined moving blade; a retraction groove is provided on the left side of the cutting blade; a retraction block is slidably connected in the retraction groove; the lower surface of the retraction block is connected to the lower surface of the retraction groove by a tension spring; a corresponding retraction block is fixedly connected to the right side of the cutting blade; the leftmost cutting blade is fixedly connected to the inner wall of the blade groove; a driven sleeve that can tilt left and right is provided at the bottom of the blade groove; an active groove is provided through the blade groove to the rear; the active groove is tilted left and right; an active rod is driven and connected in the active groove; the active rod extends to the inner side of the driven sleeve and is movably connected to the driven sleeve.

[0006] Preferably, the active slot is rotatably connected to the screw along its length; the screw is threadedly connected to the active rod; and the screw is driven by an active motor.

[0007] Preferably, a guide plate is provided on the rear side of the moving seat; the left and right ends of the guide plate are fixedly connected to the shearing table by fixing strips; a guide groove is provided through the front and rear of the guide plate; the guide groove is composed of a horizontal groove and a vertical groove; the vertical groove is connected to the right end of the horizontal groove; the left end of the moving groove is higher than the right end; the rear end of the moving rod is located in the guide groove.

[0008] Preferably, the top of the discharge slope is provided with a movable groove; a movable rod is slidably connected to the movable groove; the lower end of the movable rod is connected to the bottom of the movable groove by a movable spring; the top of the movable rod is fixedly connected to a rear pressure plate; the upper surface of the rear pressure plate is flush with the shearing table.

[0009] Preferably, the outer wall of the driving rod that contacts the driven sleeve is provided with an L-shaped groove that communicates with the rear surface; the L-shaped groove is slidably connected to an L-shaped strip in the radial direction of the driving rod; the L-shaped strip and the inner wall of the L-shaped groove are connected by a return spring; the outer wall of the driven sleeve is provided with two annular grooves; the two annular grooves are distributed at intervals; the end of the L-shaped strip can be inserted into the annular groove.

[0010] Preferably, the inner wall of the cutting groove is provided with a locking hole corresponding to the right end of the active groove; the front end of the active rod can be inserted into the locking hole.

[0011] Preferably, the cutter is composed of an upper handle and a lower core; the protruding part at the lower end of the handle is adapted to the recessed part at the upper end of the core; the upper end of the core passes through a bolt; and the lower end of the handle is provided with a threaded hole for the bolt to be screwed in.

[0012] Preferably, the outer wall of the driven sleeve is provided with an annular anti-detachment groove; an anti-detachment ring is rotatably connected inside the anti-detachment groove; a support block is slidably connected to the upper inner wall of the blade groove; and the support block is fixedly connected to the anti-detachment ring.

[0013] Preferably, a limiting rod is fixedly connected to the lower surface of the retracting block; the tension spring is sleeved on the outside of the limiting rod.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. In this invention, the cutting blade that has completed the shearing is pulled upward by the corresponding tension spring after shearing to avoid squeezing the sheared sheet material during the next cutting process. This greatly reduces the deformation of the sheet material after shearing, improves the flatness of the sheet material after shearing, and facilitates subsequent stamping and improves the quality of hardware workpieces.

[0016] 2. The cutter used in this invention maintains a uniform height and rests against the upper surface of the cut plate. The cut plate is clamped under the action of the cutter and the back pressure plate, which on the one hand positions the remaining cut plate, making the cut plate more stable, and on the other hand straightens the cut plate, further reducing the bending degree of the plate after cut, and further improving the flatness of the cut plate.

[0017] 3. Before using the moving blade and the fixed blade to cut the sheet metal, this invention allows you to choose whether to enable segmented avoidance cutting based on the needs after cutting the sheet metal, that is, whether to enable the movement of the driven sleeve. When not in use, it can save kinetic energy and make the cut more complete, and has a wide range of applications. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 yes Figure 1 A stereoscopic view from another angle;

[0021] Figure 3 This is a schematic diagram of the movable spring and movable rod in this invention;

[0022] Figure 4This is a perspective view of one of the active rod driving methods in this invention;

[0023] Figure 5 yes Figure 4 A three-dimensional view of the moving base;

[0024] Figure 6 This is a perspective view of the driven sleeve, the driving rod, and the cutter in this invention;

[0025] Figure 7 This is a perspective view of the cutting blade in this invention;

[0026] Figure 8 yes Figure 4 A sectional view of the moving base;

[0027] Figure 9 This is a diagram showing the location of the keyhole in this invention;

[0028] Figure 10 This is a perspective view of another active rod driving method in this invention.

[0029] In the diagram: shearing table 1, discharge chute 11, discharge slope 12, fixed blade 13, movable groove 14, movable rod 15, movable spring 16, rear pressure plate 17, moving seat 2, seat ear 21, hydraulic cylinder 22, blade groove 23, active groove 24, locking hole 25, moving blade 3, cutting blade 31, blade handle 311, blade core 312, bolt 313, blade retraction groove 32, blade retraction block 33, tension spring 34, limit bar 35, driven sleeve 4, annular groove 41, anti-detachment groove 42, anti-detachment ring 43, support block 44, active rod 5, L-shaped groove 51, L-shaped strip 52, return spring 53, active motor 6, screw 61, guide plate 7, fixing strip 71, guide groove 72, horizontal groove 721, vertical groove 722. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] like Figures 1 to 10 As shown, the present invention includes the following embodiments:

[0032] Example 1: A processing device for hardware workpieces includes a shearing table 1 and a discharge trough 11 on the rear side of the shearing table 1; a discharge slope 12 is fixedly connected to the inner side of the discharge trough 11; a fixed blade 13 is embedded in the front position of the top of the discharge trough 11; an inclined movable seat 2 is provided above the fixed blade 13; lugs 21 are fixedly connected to the left and right sides of the movable seat 2; the lugs 21 are connected to the shearing table 1 through a hydraulic cylinder 22; an inclined blade groove 23 is provided on the lower surface of the movable seat 2; multiple cutting blades 31 are slidably connected up and down in the blade groove 23; the multiple cutting blades 31 are inclinedly distributed in the left and right directions and combined to form an inclined movable blade 3; The cutter 31 has a retraction groove 32 on its left side; a retraction block 33 is slidably connected in the retraction groove 32; the lower surface of the retraction block 33 is connected to the lower surface of the retraction groove 32 by a tension spring 34; a corresponding retraction block 33 is fixedly connected to the right side of the cutter 31; the leftmost cutter 31 is fixedly connected to the inner wall of the cutter groove 23; the bottom of the cutter groove 23 is provided with a driven sleeve 4 that can tilt left and right; an active groove 24 is provided through the cutter groove 23 to the rear; the active groove 24 is tilted left and right; an active rod 5 is driven and connected in the active groove 24; the active rod 5 extends to the inside of the driven sleeve 4 and is movably connected to the driven sleeve 4.

[0033] After the plate is placed on the upper surface of the shearing table 1 at the front position, the plate is controlled to move from front to back. In the initial state, the moving blade 3 is located above the fixed blade 13, and the moving blade 3 is offset from the fixed blade 13 in the front-back position and can make contact with it vertically. The moving blade 3 is set behind the fixed blade 13. The front pressure seat (not labeled in the figure) is fixedly connected to the front side of the moving base 2. The front pressure seat runs through the front and slides to connect the front pressure bar (not labeled in the figure).The lower end of the front pressure bar is fixedly connected to the front pressure plate (not labeled in the figure). The upper surface of the front pressure plate is connected to the front pressure seat via a front spring (not labeled in the figure). After the plate moves backward through the front pressure plate and the moving blade 3, the backward movement of the plate stops. Then, the hydraulic cylinder 22 is controlled to shorten. During the shortening process of the hydraulic cylinder 22, the seat ear 21 moves downward. During the downward movement of the seat ear 21, the moving seat 2 moves downward. During the downward movement of the moving seat 2, the front pressure seat moves downward. During the downward movement of the front pressure seat, the front spring moves downward. During the downward movement of the front spring, the front pressure plate moves downward. The front pressure plate presses against the plate, achieving the purpose of pressing the plate. As the pressure seat continues to move downward, the front spring is compressed. The elastic force of the front spring is transmitted to the front pressure plate, achieving the purpose of pressing the plate. As the sheared sheet material is further compressed, the moving base 2 moves downward, which also drives the moving blade 3 downward. The moving blade 3 is composed of multiple cutting blades 31 distributed and combined from left to right. The height of the adjacent left-hand cutting blade 31 is higher than that of the adjacent right-hand cutting blade 31. The lower surface of the moving blade 3 is inclined as a whole. The multiple cutting blades 31 intersect with the fixed blade 13 from right to left. For ease of explanation, the multiple cutting blades 31 are named from right to left as first cutting blade 31, second cutting blade 31, etc. In the initial state, the driven sleeve 4 is located directly above the first cutting blade 31. The driven sleeve 4 presses against and limits the upper end of the first cutting blade 31, preventing the first cutting blade 31 from moving upward within the blade groove 23. The retraction groove 3 on the left side of the first cutting blade 31 The retraction block 33 in section 2 is located at the upper end of the retraction groove 32. The retraction block 33 in the retraction groove 32 on the left side of the second cutter 31 is also located at the upper end of the retraction groove 32. The cutter 31 at the left extreme position is fixedly connected to the groove 23. Thus, if one cutter 31 is restricted by the driven sleeve 4 and cannot move upward in the groove 23, the other cutters 31 on the left side of that cutter 31 will also be restricted and unable to move upward in the groove 23. After the first cutter 31 intersects with the fixed cutter to form a shearing point and shears the board, the driven sleeve 4 will move to the left and transition to the top of the second cutter 31. The first cutter 31 is pulled by the corresponding tension spring 34 and approaches the bottom of the groove 23 until the first cutter 31 and the second cutter 31 are flush. The second cutter 31 will cut the sheet metal in conjunction with the fixed cutter 13. After the second cutter 31 completes the cutting, the driven sleeve 4 will move to the left to the top of the third cutter 31. This continues until the driven sleeve 4 moves to the left to the top of the last cutter 31. The cutting point keeps shifting to the left, completing the entire cutting process of the sheet metal. During the entire cutting process, because the cutter 31 that has completed the cutting is pulled upward by the corresponding tension spring 34 after cutting, the cutter 31 that has completed the cutting will not squeeze the sheet metal after cutting. This greatly reduces the degree of deformation of the sheet metal after cutting, improves the flatness of the sheet metal after cutting, and facilitates subsequent stamping and improves the quality of hardware parts.

[0034] After the overall shearing of the sheet is completed, the extension of the hydraulic cylinder 22 will drive the seat ear 21 to move upward, causing the moving seat 2 to move upward as a whole. The driven sleeve 4 is driven to move to the right along the cutter groove 23. Since the drop position after the two adjacent cutters 31 form a uniform height is much smaller than the radius of the driven sleeve 4, the driven sleeve 4 can smoothly move from the top of the leftmost cutter 31 to the top of the first cutter 31. After the driven sleeve 4 moves downward at an angle, it will press all the cutters 31 back into a complete inclined moving cutter 3, preparing for the next shearing of the sheet. The upward movement of the moving seat 2 will also drive the front pressure plate to move upward and release from the sheet pressure. The top of the front pressure seat is provided with a front limit block (not labeled in the figure) that limits the front pressure bar. The front limit block is fixed to the top of the front pressure bar. After the front pressure plate releases the pressure on the sheet, the sheet moves backward to a suitable distance and a new round of shearing is performed.

[0035] Example 2: The active groove 24 is rotatably connected to the screw 61 along its length; the screw 61 is threadedly connected to the active rod 5; the screw 61 is driven by the active motor 6.

[0036] The active motor 6 is embedded inside the moving base 2 and is used to drive the screw 61 to rotate. During the rotation of the screw 61, it will drive the active rod 5 connected by the threaded transmission to move along the length direction of the active groove 24. The left end of the active groove 24 is higher than the right end. The active groove 24 is in an inclined state, and the degree of inclination is the same as that of the moving base 2. During the forward rotation of the screw 61, it will drive the active rod 5 to move to the left. During the leftward rotation of the active rod 5, it will drive the driven sleeve 4 to move to the left. The driven sleeve 4 will transition from the top of the cutter 31 at the adjacent right position to the top of the cutter 31 at the adjacent left position. During the reverse rotation of the screw 61, it will drive the active rod 5 to move to the right. During the rightward rotation of the active rod 5, it will drive the driven sleeve 4 to move to the right. The driven sleeve 4 will transition from the top of the cutter 31 at the adjacent left position to the top of the cutter 31 at the adjacent right position.

[0037] Example 3: A guide plate 7 is provided on the rear side of the moving seat 2; the left and right ends of the guide plate 7 are fixedly connected to the shearing table 1 by fixing strips 71; a guide groove 72 is provided through the front and rear of the guide plate 7; the guide groove 72 is composed of a horizontal groove 721 and a vertical groove 722; the vertical groove 722 is connected to the right end of the horizontal groove 721; the left end of the active groove 24 is higher than the right end; the rear end of the active rod 5 is located in the guide groove 72.

[0038] In the initial state, the rear end of the driving rod 5 is located at the upper end of the vertical groove 722 of the guide groove 72. As the moving base 2 moves downward, it will drive the driven sleeve 4 and the driving rod 5 to move downward. The rear end of the driving rod 5 will move downward along the vertical groove 722 and enter the right end of the horizontal groove 721. As the moving base 2 continues to move downward, due to the inclined setting of the driving groove 24, the rear end of the driving rod 5 will move to the left along the right end of the horizontal groove 721. During the leftward movement of the driving rod 5, it will move sequentially from the top of the adjacent right-hand cutter 31 to the top of the adjacent left-hand cutter 31. This allows all the cutters 31 to unlock sequentially from right to left, completing the shearing of the board while ensuring timely avoidance of the already used cutters 31. After the board shearing is completed, the moving base 2 is controlled to move upward. The moving base 2 will drive the driving rod 5 to move to the right along the driving groove 24 in conjunction with the horizontal groove 721. The driving rod 5 will move along the horizontal groove 721 to the vertical groove 722. The driving rod 5 will also move from the left end to the right end of the driving groove 24. As the moving base 2 continues to move upward, the driving rod 5 will move from the horizontal groove 721 to the vertical groove 722, and the cutter 31 will also be raised to a certain height.

[0039] Example 4: The top of the discharge slope 12 is provided with a movable groove 14; a movable rod 15 is slidably connected to the movable groove 14; the lower end of the movable rod 15 is connected to the bottom of the movable groove 14 by a movable spring 16; the top of the movable rod 15 is fixedly connected to a rear pressure plate 17; the upper surface of the rear pressure plate 17 is flush with the shearing table 1.

[0040] When the moving blade 3 is raised, the sheet metal will move forward past the fixed blade 13. Since the upper surface of the rear pressure plate 17 is flush with the shearing table 1, the rear pressure plate 17 can support the sheet metal, thus reducing the problem of bending at the shearing position caused by the rear end of the sheet metal being too far away. The support of the sheet metal by the rear pressure plate 17 greatly alleviates this problem. In addition, as the moving blade 3 moves down, the multiple cutters 31 in the moving blade 3 unlock and cut sequentially from right to left. The used cutters 31 maintain a uniform height and press against the upper surface of the sheet metal after shearing. The sheared sheet metal is clamped under the action of the used cutters 31 and the rear pressure plate 17, which on the one hand positions the remaining sheet metal to be sheared, making the shearing of the sheet metal more stable, and on the other hand straightens the sheet metal that has been sheared, further alleviating the bending degree of the sheet metal after shearing, and further improving the flatness of the sheared sheet metal. After the moving blade 3 moves up and leaves the contact with the sheet metal, the sheet metal on the rear pressure plate 17 falls off as the sheet metal to be sheared on the shearing table 1 moves backward, and the sheared sheet metal falls down along the discharge slope 12.

[0041] Example 5: The outer wall of the active rod 5 in contact with the driven sleeve 4 is provided with an L-shaped groove 51 that communicates with the rear surface; the L-shaped groove 51 is slidably connected to an L-shaped strip 52 in the radial direction of the active rod 5; the L-shaped strip 52 is connected to the inner wall of the L-shaped groove 51 by a return spring 53; the outer wall of the driven sleeve 4 is provided with two annular grooves 41; the two annular grooves 41 are distributed at intervals; the end of the L-shaped strip 52 can be inserted into the annular groove 41.

[0042] In this embodiment, the inner wall of the knife groove 23 is provided with a locking hole 25 corresponding to the right end of the active groove 24; the front end of the active rod 5 can be inserted into the locking hole 25.

[0043] Before using the moving blade 3 in conjunction with the fixed blade 13 to cut the sheet metal, the selection is made based on the desired shearing results, i.e., whether the driven sleeve 4 needs to be activated. When deactivated, it saves energy and produces a more complete cut, with a wider range of applications. When activated, it results in a smoother overall sheet metal surface. Therefore, adjustments are made as needed. Specifically, the L-shaped bar 52 is first moved to overcome the spring force of the return spring 53. The L-shaped bar 52 slides along the L-shaped groove 51, and its end moves out of the annular groove 41, unlocking the driving rod 5 from the driven sleeve 4. Then, the driving rod 5 is moved forward until the end of the L-shaped bar 52 aligns with the annular groove 41 at the front position. Finally, the L-shaped bar 52 is released. 2. The return spring 53 pushes the L-shaped bar 52 to slide in the L-shaped groove 51. The end of the L-shaped bar 52 will be locked into the annular groove 41 at the front position, realizing the axial locking of the driving rod 5 and the driven sleeve 4. After the rear end of the driving rod 5 moves forward, it will move out of the guide groove 72, realizing the unlocking of the driving rod 5 and the guide groove 72. After moving the rear end of the L-shaped bar 52, causing the end of the L-shaped bar 52 to move out of the annular groove 41 at the front position, pulling the L-shaped bar 52 backward will drive the driving rod 5 backward. The backward movement of the driving rod 5 will cause the end of the L-shaped bar 52 to align with the annular groove 41 at the rear position. When the L-shaped bar 52 is released, the end of the L-shaped bar 52 is locked into the annular groove 41 at the rear position, and the rear end of the driving rod 5 will enter the guide groove 72, realizing the connection between the driving rod 5 and the guide groove 72.

[0044] Furthermore, a locking hole 25 is provided on the front inner wall of the blade groove 23, corresponding to the right end of the active groove 24. Therefore, after the active rod 5 moves forward, the front end of the active rod 5 can be inserted into the locking hole 25 to completely lock the active rod 5 in the blade groove 23. This prevents the driven sleeve 4 from moving in the blade groove 23, thus locking all the cutters 31 and making the moving blade 3 formed by all the cutters 31 more stable. When the active rod 5 moves backward, the front end of the active rod 5 will move out of the locking hole 25, and the right end will be inserted into the guide groove 72.

[0045] Example 6: The cutter 31 is composed of an upper handle 311 and a lower core 312; the protruding part at the lower end of the handle 311 is adapted to the recessed part at the upper end of the core 312; the upper end of the core 312 passes through a bolt 313; the lower end of the handle 311 is provided with a threaded hole for the bolt 313 to be screwed in.

[0046] After loosening bolt 313, bolt 313 will be pulled out of the threaded hole and removed from the blade core 312. Blade core 312 is then replaced. After the upper end of blade core 312 and the lower end of blade handle 311 are inserted into each other, bolt 313 is passed through the upper end of blade core 312 and tightened in the threaded hole, thus replacing and installing blade core 312.

[0047] Example 7: The outer wall of the driven sleeve 4 is provided with an annular anti-detachment groove 42; an anti-detachment ring 43 is rotatably connected inside the anti-detachment groove 42; the knife groove 23 is slidably connected to the support block 44 on the left and right sides near the upper inner wall; the support block 44 is fixedly connected to the anti-detachment ring 43.

[0048] As the driving rod 5 drives the driven sleeve 4 to move left and right along the cutter groove 23, the driven sleeve 4 will drive the anti-detachment ring 43 to move left and right synchronously. The cutter groove 23 is rotatably connected to the anti-detachment ring 43 through the anti-detachment groove 42, so the setting of the anti-detachment ring 43 will not affect the rolling of the driven sleeve 4. The rolling driven sleeve 4 reduces the friction with the top of the cutter 31. During the left and right movement of the anti-detachment ring 43, it will drive the support block 44 to move left and right synchronously along the cutter groove 23. In this way, after the driven sleeve 4 moves to the top of the corresponding cutter 31, the support block 44 can support the corresponding driven sleeve 4. The driven sleeve 4 will support the corresponding cutter 31, which will greatly improve the compressive strength of the cutter 31, enabling the cutter 31 to cut thicker plates and also extending the service life of the processing equipment.

[0049] Example 8: The lower surface of the retracting block 33 is fixedly connected to the limiting rod 35; the tension spring 34 is sleeved on the outside of the limiting rod 35.

[0050] After the driven sleeve 4 is removed from the top of the corresponding cutter 31, the cutter 31 will be pulled upward by the tension spring 34. The corresponding retraction groove 32 of the cutter 31 will slide with the retraction block 33 until the limiting rod 35 below the corresponding retraction block 33 abuts against the lower inner wall of the corresponding retraction groove 32, thereby limiting the upward movement of the cutter 31 to avoid collision. This ensures that all cutters 31 can be at the same height after being pulled by the tension spring 34, making the lower end of the cutter 31 that has completed the cutting straighter and improving the straightening effect of the lower end of the cutter 31 on the board.

[0051] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be construed as indicating or implying relative importance. In the description of the present invention, "fixed connection" refers to a fixed connection.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing device for hardware workpieces, comprising a shearing table and a discharge chute behind the shearing table; a discharge slope is fixedly connected to the inner side of the discharge chute; a fixed knife is embedded at the top of the discharge chute in a forward position; characterized in that: An inclined movable seat is provided above the fixed blade; the movable seat is fixedly connected to the left and right sides; the seat is connected to the shearing table via a hydraulic cylinder; an inclined blade groove is provided on the lower surface of the movable seat; multiple cutters are slidably connected in the blade groove; the multiple cutters are inclinedly distributed in the left and right directions and combined to form an inclined movable blade; a retraction groove is provided on the left side of the cutter; a retraction block is slidably connected in the retraction groove; the lower surface of the retraction block is connected to the lower surface of the retraction groove via a tension spring; a corresponding retraction block is fixedly connected to the right side of the cutter; the leftmost cutter is fixedly connected to the inner wall of the blade groove; a driven sleeve that can tilt left and right is provided at the bottom of the blade groove; an active groove is provided through the blade groove to the rear; the active groove is inclined left and right; an active rod is driven and connected in the active groove; the active rod extends to the inner side of the driven sleeve and is movably connected to the driven sleeve.

2. The apparatus for processing hardware workpieces according to claim 1, wherein: The active slot is rotatably connected to the screw along its length; the screw is threadedly connected to the active rod; the screw is driven by an active motor.

3. The apparatus for processing hardware workpieces according to claim 1, wherein: The moving seat is provided with a guide plate on its rear side; the left and right ends of the guide plate are fixed to the shearing table by fixing strips; the guide plate is provided with a guide groove running through it from front to back; the guide groove is composed of a horizontal groove and a vertical groove; the vertical groove is connected to the right end of the horizontal groove; the left end of the moving groove is higher than the right end; the rear end of the moving rod is located in the guide groove.

4. The apparatus for processing hardware workpieces according to claim 1, wherein: The top of the discharge slope is provided with a movable groove; a movable rod is slidably connected up and down in the movable groove; the lower end of the movable rod is connected to the bottom of the movable groove by a movable spring; the top of the movable rod is fixedly connected to a rear pressure plate; the upper surface of the rear pressure plate is flush with the shearing table.

5. The apparatus for processing hardware parts according to claim 3, wherein: The outer wall of the active rod that contacts the driven sleeve is connected to the rear surface and has an L-shaped groove; the L-shaped groove is slidably connected to an L-shaped strip in the radial direction of the active rod; the L-shaped strip and the inner wall of the L-shaped groove are connected by a return spring; the outer wall of the driven sleeve has two annular grooves; the two annular grooves are distributed at intervals; the end of the L-shaped strip can be inserted into the annular groove.

6. The apparatus for processing hardware parts according to claim 3, wherein: The inner wall of the cutting groove is provided with a locking hole corresponding to the right end of the active groove; the front end of the active rod can be inserted into the locking hole.

7. The apparatus for processing hardware parts according to claim 1, wherein: The cutter is composed of an upper handle and a lower core; the protruding part at the lower end of the handle is adapted to the recessed part at the upper end of the core; the upper end of the core passes through a bolt; the lower end of the handle is provided with a threaded hole for the bolt to be screwed in.

8. The apparatus for working a hardware piece according to claim 1, wherein: The driven sleeve has an annular anti-detachment groove on its outer wall; an anti-detachment ring is rotatably connected inside the anti-detachment groove; a support block is slidably connected to the upper inner wall of the blade groove; and the support block is fixedly connected to the anti-detachment ring.

9. The processing equipment for hardware workpieces according to claim 4, characterized in that: A limiting bar is fixedly connected to the lower surface of the retracting block; the tension spring is sleeved on the outside of the limiting bar.

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