Restraint focus fixing device
The constrained focusing device stabilizes pig carcasses using a lubricating guide member and constraint assembly, ensuring accurate and clear laser marking by maintaining carcass stability during transportation.
Patent Information
- Application Number
- CN202420521656.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-18
AI Technical Summary
Pig carcasses shake during transportation, leading to inaccurate and unclear laser marking on the surface, which affects the continuity, completeness, and clarity of the marking content.
A constrained focusing device with a guide member having a lubricating layer and a guide constraint assembly that stabilizes the carcass before marking, ensuring it remains stable and aligned with the laser unit.
The device maintains the carcass in a stable position, allowing for accurate and clear laser marking, reducing costs and improving production efficiency by minimizing downtime and ensuring consistent marking quality.
Smart Images
Figure CN222154277U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of laser marking and burning, in particular to a constrained focus device. Background Art
[0002] Pork laser marking technology uses laser to burn animal quarantine inspection stamps (square stamps), meat quality stamps (round stamps) and other identification information on the surface of sliced pork. With clear, effective and indelible identification information as the carrier, it provides an ideal information chain foundation for corporate brand promotion and safe, queryable and traceable pork products. Laser marking does not require consumables, is economical and environmentally friendly, and can bring good economic and social benefits to enterprises.
[0003] On the laser engraving production line, the hook moves with the pig carcass under the guidance of the guide. The resistance of the guide will cause the pig carcass to lag behind the hook. When the pig carcass leaves the guide and is ready for marking, it will shake, resulting in inaccurate marking position, unclear marking content and other problems. Utility Model Content
[0004] The technical problem to be solved by the utility model is: how to reduce or avoid shaking of pig carcasses during transportation.
[0005] The utility model provides a technical solution to the above-mentioned technical problem as follows: a constraint focusing device, comprising a main rail, a pushing mechanism, a hook and a guide constraint assembly, wherein the guide constraint assembly is arranged on one side below the main rail, the guide constraint assembly comprises a guide member, the outer surface of the guide member has a lubricating layer, the pushing mechanism pushes the hook to slide along the main rail, the hook is used to hang a carcass, and the guide member is arranged along the length direction of the main rail.
[0006] The beneficial effect of the utility model is as follows: in order to meet the requirements of continuous, complete, accurate and clear laser marking of carcasses, before the carcass moves into the marking station, the guide member causes the lower part of the carcass to shift to one side for a distance from its original position, changing from the original free hanging state to an approximately stable state with support at the lower part, and continuing to move forward for a distance in this state, that is, the posture of the carcass is controlled before it enters the marking station. In this solution, a lubricating layer is provided on the outer surface of the guide member substrate, and the lubricating layer is a coating or plating formed by a material with a small friction coefficient, which greatly reduces the resistance between the guide member and the carcass, so that the carcass can be kept directly below the hook during transportation, and will not produce large shaking after being separated from the guide member. Thus, the marking position is accurate and the marking content is clear.
[0007] On the basis of the above technical solution, the present invention can also be improved as follows.
[0008] Furthermore, one end of the guide member has a guide section, which is horizontally arranged and gradually approaches the vertical plane where the main rail is located along the moving direction of the hook.
[0009] The beneficial effect of adopting the above further solution is that the carcass gradually transitions to moving against the guide member under the guiding action of the introduction section.
[0010] Furthermore, the guide constraint assembly also includes a constraint structure, and the guide member and the constraint structure are arranged in sequence along the length direction of the main rail.
[0011] The beneficial effect of adopting the above further scheme is that before the carcass moves into the marking station, the guide member guides the carcass and controls its posture. When arriving at the marking station, the stability of the carcass is effectively controlled by the constraint structure, and the marking surface can always be controlled at the optimal focal length position during the marking process, thereby achieving a satisfactory effect. The constraint structure makes the static marking mode stable and reliable, which greatly reduces the cost compared to the flying marking mode. The device structure is relatively simple, low-cost, reliable, stable, easy to maintain and low maintenance cost, which effectively reduces the downtime of failures and improves the overall production efficiency of the production line.
[0012] Furthermore, at least two guide and restraint components are provided spaced apart from each other.
[0013] The beneficial effect of adopting the above further solution is that at least two guide and restraint components spaced apart from each other jointly provide support for the carcass, further ensuring the stability of the movement of the carcass.
[0014] Optionally, the constraint structure includes a constraint focusing turntable and a turntable driving motor, the constraint focusing turntable has a concave arc surface, the turntable driving motor is fixedly arranged and transmission connected to the constraint focusing turntable, and the turntable driving motor can drive the constraint focusing turntable to rotate until the arc surface is facing the guide member, toward the vertical plane where the main rail is located, or away from the guide member.
[0015] The beneficial effect of adopting the above further scheme is that the carcass moves along the guide to the arc surface of the constrained focusing turntable, and rotates to the marking station as the constrained focusing turntable rotates, achieving fast and stable positioning, and the distance between the carcass and the laser unit is fixed, so there will be no problem of unclear marking content.
[0016] Furthermore, the constrained focusing turntable is provided with at least two arcuate surfaces, and the at least two arcuate surfaces are evenly distributed along the circumference of the constrained focusing turntable.
[0017] The beneficial effect of adopting the above further solution is that the fixed-focus turntable can be constrained to rotate in the same direction, and adjacent arc-shaped surfaces can be quickly connected with the next carcass, thereby improving the marking efficiency.
[0018] Furthermore, the hook includes a hook frame and a hook body, the hook frame is slidably connected to the main rail, the middle part of the hook body is connected to the hook frame, and both ends of the hook body respectively have hooks for hanging the carcass, and the guide constraint components are divided into two groups, and the two groups of guide constraint components are respectively located on both sides below the main rail.
[0019] The beneficial effect of adopting the above further solution is that the hook can hang two carcasses, and the constrained focusing device can guide and mark two rows of carcasses on multiple hooks at the same time.
[0020] Optionally, the constraint structure includes a contoured leaning rod, the hook includes a hook frame and a hook body, the hook frame is slidably connected to the main rail, the middle part of the hook body is rotatably connected to the hook frame, and the hook body can rotate horizontally around a vertical axis, and both ends of the hook body are respectively provided with hooks for hanging the carcass, the guide constraint components are divided into two groups, the two groups of guide constraint components are respectively located on both sides below the main rail, one end of the contoured leaning rod is fixedly connected to the other end of the guide member, the contoured leaning rod has a concave arc surface, and the other ends of the contoured leaning rods of the two groups of guide constraint components are staggered front and back along the movement direction of the hook.
[0021] The beneficial effects of adopting the above further solution are: the carcass moves along the guide member into the contoured support rod, thereby being positioned at the marking station, the positioning is fast and stable, the distance between the carcass and the laser unit is fixed, and there is no problem of unclear marking content. After the carcass is marked, it moves away from the marking station from between the other ends of the contoured support rods of the two sets of guide constraint assemblies.
[0022] Furthermore, it also includes a shaping mechanism and a guide shuttle, wherein one end of the guide member of a group of the guide constraint components is fixedly connected to the shaping mechanism extending along the length direction of the main rail, and the other end of the contoured support rod of the group of the guide constraint components is arranged rearward along the movement direction of the hook, and the guide shuttle is fixed below between the two groups of the guide constraint components.
[0023] The beneficial effect of adopting the above further scheme is that when the lower part of the carcass enters the range of the guide shuttle, the lower parts of the two carcasses on the hook will separate to both sides and move forward closely against the guide shuttle, so that the lower part of the carcass will obtain an effective support and move smoothly without shaking. Subsequently, one of the carcasses on the hook is pushed by the shaping mechanism, and the hook body on the hook rotates relative to the hook frame, and the two carcasses on the hook are staggered front and back and enter between the two sets of guide constraint components.
[0024] Further, the main rail includes a first transport section, a marking section, and a second transport section which are arranged in sequence, the rear end of the marking section is located below the front end of the first transport section, the front end of the marking section extends obliquely upward and is fixedly connected to the rear end of the second transport section, and the restraint structure is located below the marking section.
[0025] The pushing mechanism includes a conveying assembly and a quick ejection device. The conveying assembly includes a conveying chain and a pusher. The conveying chain is arranged along the length direction of the main rail, and a plurality of pushers are installed thereon at intervals. The pusher pushes the hook in one direction.
[0026] The quick ejection device is located on one side of the main rail and is used to push the hook from the marking section to the second transport section.
[0027] The beneficial effect of adopting the above further scheme is that the conveying assembly pushes the hook to move along the first transport section and falls on the marking section. In this way, under the joint action of the guide member and the restraining structure, the carcass is effectively supported, the entire falling process is stable and controllable, and the next marking action can be carried out quickly, thereby improving the overall efficiency. The quick ejection device quickly ejects the hook from the marking section to the second transport section, and then hangs it on the original hook again, and the hook continues to be pushed by the conveying assembly.
[0028] Furthermore, the pusher head includes a pusher head base block, a pusher head hook and a pusher head elastic member, the pusher head base block is fixedly connected to the conveying chain, one end of the pusher head hook is rotatably connected to the pusher head base block, the pusher head base block has a pusher head limiting portion, and the pusher head elastic member applies an elastic force to the pusher head hook to rotate it to the rear side and abut against the pusher head limiting portion.
[0029] The beneficial effect of adopting the above further solution is that the push head can push the hook forward, and when the hook is quickly pushed out from the marking section to the second transport section, the hook moves from the rear side of the push head to the front side of the push head, and the push head hook rotates relative to the push head base block to avoid the hook. Then, it is reset under the elastic force of the push head elastic member, and the rear side of the push head hook abuts against the push head limiter. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 This is a front view of the third embodiment of the constrained focus device of the utility model;
[0031] Figure 2 for Figure 1 AA section view of the constrained focusing device;
[0032] Figure 3 for Figure 1 A BB-direction cross-sectional view of the constrained focusing device;
[0033] Figure 4 for Figure 1A CC-direction cross-sectional view of the constrained focusing device;
[0034] Figure 5 for Figure 1 A top view of the constrained focus device, constraining the focus turntable to rotate to a marking position;
[0035] Figure 6 The partial enlarged view of the constrained focusing device, the hook 3 is compared to Figure 1 Moved forward a distance;
[0036] Figure 7 It is a top view of the fourth embodiment of the constrained focus fixing device of the utility model;
[0037] Figure 8 for Figure 7 Front view of the installation position of the guide member of the constrained focusing device, in which the circle is used to indicate the marking position;
[0038] Fig. 9 for Figure 7 Front view of the guide shuttle of the constrained focusing device;
[0039] Fig.10 for Figure 7 A top view of the guide shuttle of the constrained focus device;
[0040] Fig.11 A top view of the guide constraint assembly of Embodiment 1;
[0041] Fig.12 for Fig.11 Left view of the Guide constraint component.
[0042] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0043] 1. Main rail; 101. First transport section; 102. Marking section; 103. Second transport section; 2. Pusher; 3. Hook; 4. Guide; 5. Main frame; 6. Turntable drive motor; 7. Laser unit; 8. Carcass; 9. Quick ejection device; 10. Laser beam range; 11. Constrained focus turntable; 12. Lead-in section; 13. Profiling rod; 14. Shaping mechanism; 15. Guide shuttle; 16. Laser light emitting surface; 17. Adjustment bolt. DETAILED DESCRIPTION
[0044] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0045] Embodiment 1
[0046] like Figure 1-Figure 12As shown, this embodiment provides a constraint focusing device, including a main rail 1, a pushing mechanism, a hook 3 and a guide constraint assembly, wherein the guide constraint assembly is arranged on one side below the main rail 1, the guide constraint assembly includes a guide member 4, and the outer surface of the guide member 4 has a lubricating layer. The pushing mechanism pushes the hook 3 to slide along the main rail 1, the hook 3 is used to hang a carcass 8, and the guide member 4 is arranged along the length direction of the main rail 1.
[0047] In order to ensure that the laser marking content of the carcass is continuous, complete, accurate and clear, before the carcass moves into the marking station, the guide member causes the lower part of the carcass to shift to one side for a distance from its original position, changing from the original free hanging state to an approximately stable state with support at the bottom, and continuing to move forward for a distance in this state, that is, the posture of the carcass is controlled before it enters the marking station. In this solution, a lubricating layer is provided on the outer surface of the guide member substrate, and the lubricating layer is a coating or plating formed by a material with a small friction coefficient, which greatly reduces the resistance between the guide member 4 and the carcass, so that the carcass can be kept directly below the hook 3 during transportation, and will not shake much after leaving the guide member 4. Thus, the marking position is accurate and the marking content is clear.
[0048] In the field of laser engraving, there are two modes: static marking and flying marking. In the static marking mode, the object to be marked needs to be in a stable state during marking. In the flying marking mode, the object to be marked is still in a moving state during marking. The constrained focus device of this embodiment can be applied to static marking as well as flying marking.
[0049] The guide member 4 is a rod or a vertical plate.
[0050] Further optional, such as Figure 2 As shown, the front end of the guide member 4 can also be extended forward to be provided with a guide extension portion.
[0051] Optionally, the lubricating layer on the guide member 4 is a coating or plating formed by a material with a small friction coefficient, such as Teflon coating or other coating or plating with small surface resistance.
[0052] Specifically, the guide member 4 is located on one side below the main rail 1 , so that the carcass 8 is offset to one side relative to the free hanging position, and the carcass 8 abuts against the guide member 4 .
[0053] In one specific example, the laser unit 7 is fixed to one side of the main rail 1 , and the carcass 8 is offset to a side away from the laser unit 7 relative to the free hanging position.
[0054] Specifically, the constrained focusing device also includes a main frame 5 , and the guide constraint assembly and the laser unit 7 are both installed on the main frame 5 .
[0055] Specifically, Fig.11 As shown, the horizontal position of the guide member 4 is adjustable. A plurality of adjusting bolts 17 are rotatably mounted on the guide member 4, and the adjusting bolts 17 are threadedly connected to the main frame 5. By rotating the adjusting bolts 17, the relative position of the main frame 5 and the adjusting bolts 17 can be adjusted, thereby adjusting the relative position of the guide member 4 and the main frame 5, so that the guide member 4 and the laser unit 7 on the corresponding side are moved closer to or farther from each other.
[0056] Optionally, the carcass 8 may be a pork carcass, a beef carcass, a mutton carcass or a carcass of other animals.
[0057] On the basis of any of the above solutions, one end of the guide member 4 has an introduction section 12, and the introduction section 12 is horizontally arranged and gradually approaches the vertical plane where the main rail 1 is located along the moving direction of the hook 3.
[0058] like Figure 2 As shown, the carcass 8 gradually transitions to moving against the guide member 4 under the guiding effect of the introduction section 12 .
[0059] Based on any of the above solutions, there may be only one guide constraint assembly, or at least two guide constraint assemblies may be provided spaced apart from each other.
[0060] At least two guide and restraint assemblies spaced apart from each other provide support for the carcass 8 together, further ensuring the stability of the movement of the carcass 8 .
[0061] Embodiment 2
[0062] The current method of static laser engraving of pork is to unhook the pork carcass running on the production line, let it go from dynamic to static after a period of time, or simply clamp it after unhooking to make it stable, so as to complete the laser marking, and then quickly push it out, re-hook it and run it according to the production line rhythm. This method has the following disadvantages:
[0063] 1. The pork carcass is in a suspended state throughout the production line. After being unhooked, it suddenly changes from dynamic to static. At this time, due to inertia, it will produce a large shake. With an overall efficiency of 600 pigs / hour, the total time for each pig to go from moving to static, labeling, and pushing out and re-hooking is less than 6 seconds. The stable labeling time usually takes about 3 seconds. Conventional methods cannot guarantee that the pork carcass will enter a stable state in less than 2 seconds. At this time, the labeling, the continuity, completeness, and clarity of the labeling content cannot be effectively guaranteed.
[0064] 2. If another method is used, after the pork carcass is unhooked, it is quickly clamped by the clamping mechanism. It seems that a stable state can be reached quickly, but because the clamping is performed when the pork carcass is still in a shaking state, there is a high probability that the position of the pork carcass in a stable state will deviate from the marking center line, and the marking surface is the back of the pork carcass (arc-shaped), which will deviate from the focal length range of the laser. At this time, the continuity, completeness, and clarity of the marking content cannot be effectively guaranteed.
[0065] 3. The size of the pork carcass itself is inconsistent. If it is pressed tightly before marking, there is a high probability that the position of the pork carcass in a stable state will deviate from the marking center line. If it is pressed to the edge of the pork carcass, there is also a probability that the pork carcass will be squeezed out (not pressed at all). Under this condition, the continuity, completeness and clarity of the marking content cannot be effectively guaranteed.
[0066] 4. The size of the pork carcass itself is inconsistent. The pressing surface before marking is the back of the pork carcass. The focal length of the laser is fixed. When the thickness of the pork carcass varies greatly, the marking surface will also be out of the normal focal length range. Under this condition, the continuity, completeness and clarity of the marking content cannot be effectively guaranteed.
[0067] The above-mentioned problems exist not only in the laser marking of pork, but also in the laser marking of other animal carcasses (such as beef, mutton, etc.). Therefore, in a system where static precise laser marking (marking or coding) is achieved after a dynamically transmitted object stops for a short time, how to make the laser marking content continuous, complete, accurate and clear is a technical problem that technical personnel in this field urgently need to solve.
[0068] Based on the above problems, the constrained focus device is further improved on the basis of the first embodiment. The guide constraint assembly further includes a constraint structure, and the guide member 4 and the constraint structure are sequentially arranged along the length direction of the main rail 1 .
[0069] Before the carcass moves into the marking station, the guide 4 guides the carcass and controls its posture. When arriving at the marking station, the stability of the carcass is effectively controlled by the constraint structure, and the marking surface can always be controlled at the optimal focal length position during the marking process, thereby achieving a satisfactory effect. The constraint structure makes the static marking mode stable and reliable, which greatly reduces the cost compared to the flying marking mode. The device has a relatively simple structure, low cost, reliability, strong stability, easy maintenance and low maintenance cost, which effectively reduces the downtime of failures and improves the overall production efficiency of the production line.
[0070] like Figure 6As shown, the main rail 1 includes a first transport section 101, a marking section 102, and a second transport section 103 arranged in sequence. The rear end of the marking section 102 is located below the front end of the first transport section 101. The front end of the marking section 102 extends obliquely upward and is fixedly connected to the rear end of the second transport section 103. The restraint structure is located below the marking section 102.
[0071] The pushing mechanism includes a conveying assembly and a quick ejection device 9. The conveying assembly includes a conveying chain and a pusher head 2. The conveying chain is arranged along the length direction of the main rail 1, and a plurality of pushers 2 are installed thereon at intervals. The pusher head 2 pushes the hook 3 in one direction.
[0072] The quick ejection device 9 is located at one side of the main rail 1 and is used to push the hook 3 from the marking section 102 to the second transport section 103 .
[0073] The conveying assembly pushes the hook 3 to move at a constant speed along the first transport section 101 and falls on the marking section 102. In this way, under the joint action of the guide member 4 and the restraining structure, the carcass 8 is effectively supported. The entire falling process is stable and controllable, and the next marking action can be carried out quickly to improve the overall efficiency. The quick ejection device 9 quickly ejects the hook 3 from the marking section 102 to the second transport section 103, and hangs it on the original hook 3 again, and the hook 3 continues to be pushed by the conveying assembly.
[0074] Based on any of the above schemes, the pusher head 2 includes a pusher head base block, a pusher head hook and a pusher head elastic member, the pusher head base block is fixedly connected to the conveying chain, one end of the pusher head hook is rotatably connected to the pusher head base block, the pusher head base block has a pusher head limiting portion, and the pusher head elastic member applies an elastic force to the pusher head hook to make it rotate to the rear side and abut against the pusher head limiting portion.
[0075] The push head 2 can push the hook 3 to move forward, and when the hook 3 is quickly pushed out from the marking section 102 to the second transport section 103, the hook 3 moves from the rear side of the push head 2 to the front side of the push head 2, and the push head hook rotates relative to the push head base block to avoid the hook 3. Then, it is reset under the elastic force of the push head elastic member, and the rear side of the push head hook abuts against the push head limiter.
[0076] On the basis of any of the above schemes, the quick ejection device 9 includes a quick ejection hook and a quick ejection drive mechanism. Optionally, the quick ejection drive mechanism is a motor, a cylinder or a hydraulic cylinder, and the quick ejection drive mechanism drives the quick ejection hook to move back and forth in a straight line, wherein the quick ejection hook has the same structure as the ejection head 2, and the hook body of the quick ejection hook can rotate and reset in one direction under the action of an external force, so as to avoid the ejection head 2 when it returns to its original position; or, the quick ejection drive mechanism includes an annular chain rotating along a ring, and the quick ejection hook is installed on the annular chain, and circulates through the marking section 102, and pushes the hook 3 of the marking section 102 forward.
[0077] Embodiment 3
[0078] Based on any one of the solutions in Example 2, Figure 1-Figure 6 As shown, the constraint structure includes a constraint focus turntable 11 and a turntable drive motor 6, the constraint focus turntable 11 has a concave arc surface, the turntable drive motor 6 is fixedly arranged and transmission connected to the constraint focus turntable 11, and the turntable drive motor 6 can drive the constraint focus turntable 11 to rotate until the arc surface is toward the guide member 4, toward the vertical plane where the main rail 1 is located, or away from the guide member 4.
[0079] The carcass 8 moves along the guide 4 to the arc surface of the constrained focusing turntable 11, and rotates to the marking station with the rotation of the constrained focusing turntable 11, realizing fast and stable positioning. The distance between the carcass 8 and the laser unit is fixed, and there will be no problem of unclear marking content.
[0080] Specifically, Figure 2 and Figure 3 The structure shown is when the constrained focus turntable 11 rotates to the point where the arc surface faces the guide member 4 and one end of the arc surface is tangent to the guide member 4, so as to receive the moving carcass 8; then, Figure 5 The figure shows the structure when the constrained focusing turntable 11 is rotated to the marking position, that is, when it is rotated to the vertical plane where the arc surface faces the main rail 1, and marking is performed at this time; after marking is completed, the constrained focusing turntable 11 continues to rotate to face away from the guide member 4, and cooperates with the quick ejection device 9 to continue to transport the carcass 8 forward.
[0081] On the basis of the above solution, the constrained focusing turntable 11 is provided with at least two arcuate surfaces, and the at least two arcuate surfaces are evenly distributed along the circumference of the constrained focusing turntable 11 .
[0082] The fixed-focus turntable 11 is constrained to rotate in the same direction, and the adjacent arc-shaped surfaces are quickly connected with the next carcass 8, thereby improving the marking efficiency.
[0083] Specifically, Figure 5 As shown, for each constrained focus turntable 11, at least two arcuate surfaces are arranged facing away from the rotation axis thereof. Figure 5 In the specific example shown, the constraining and focusing turntable 11 has two arcuate surfaces. Compared with only one arcuate surface, the two arcuate surfaces rotate alternately to contact the carcass 8, which can reduce the time for the arcuate surface to reset and constrain the next carcass 8, shorten the working interval, and improve the working efficiency. Of course, each constraining and focusing turntable 11 can also be provided with three or more arcuate surfaces.
[0084] Specifically, the arc surface is designed according to the back curve of the carcass 8.
[0085] Based on any of the above schemes, the hook 3 includes a hook frame and a hook body, the hook frame is slidably connected to the main rail 1, the middle part of the hook body is connected to the hook frame, and the two ends of the hook body respectively have hooks for hanging the carcass 8, and the guide constraint components are divided into two groups, and the two groups of guide constraint components are respectively located on both sides below the main rail 1.
[0086] The hook 3 can hang two carcasses 8, and the constrained focusing device guides and marks two rows of carcasses 8 on multiple hooks 3 at the same time.
[0087] Specifically, there are two groups of guide constraint components, and two laser units 7 are also provided accordingly. The two groups of guide constraint components can adjust the guide members 4 on both sides to a suitable spacing according to actual conditions. Each group includes at least one guide constraint component, and when each group includes at least two guide constraint components, at least two guide constraint components are arranged at intervals up and down.
[0088] Specifically, a hook guide wheel is rotatably provided on the hook frame, and the hook guide wheel rolls along the main guide rail 1 to achieve a sliding connection between the hook frame and the main guide rail 1.
[0089] In one specific example, the working process of the constraint and focus device is as follows: the carcass 8 is suspended on the hook 3, a plurality of pushers 2 are integrated on the conveyor chain at a fixed interval, the hook 3 is slidably connected to the main rail 1, and the carcass 8 can realize a uniform and continuous forward movement under the push of the pusher 2. Two sets of guide constraint components are symmetrically arranged on both sides below the main rail 1.
[0090] 1. Enter the guidance stage. Figure 2 As shown, when the carcass 8 runs into the range of the introduction section 12, under the action of the introduction section 12, the lower parts of the carcasses 8 on both sides will be offset inward (toward) for a distance, and the carcass 8 changes from the original free hanging state to an approximately stable state with support at the lower part. In this state, it continues to move forward for a distance, and transitions to contact with the guide member 4 and moves along the guide member 4.
[0091] 2. The hook falls off. Figure 1 and Figure 6As shown, the first transport section 101 of the main rail 1 is disconnected from the marking section 102. When the hook 3 moves to the breakpoint at the front end of the first transport section 101, it will fall on the sloped marking section 102. At this time, the hook 3 is separated from the pusher head 2, and the pusher head 2 at this point continues to move forward under the drive of the conveyor chain. Each side of the constraint focus turntable 11 is arranged with two upper and lower layers, a total of four, and each constraint focus turntable 11 has two arc surfaces (180° apart), such as Figure 2 and Figure 3 As shown, when the hook 3 just falls on the slope track, the constraint focus turntables 11 on both sides have reached the blocking position in advance under the drive of their respective turntable drive motors 6. In this way, under the joint action of the guide member 4 and the constraint focus turntable 11, the part below the carcass 8 is effectively supported, and the entire falling process is stable and controllable, and the next action can be carried out quickly to improve the overall efficiency.
[0092] 3. Enter the marking station to perform marking. Afterwards, the fixed focus turntable 11 is driven by the turntable drive motor 6 to rotate rapidly to Figure 5 The carcass 8 is put in the correct position, and the hook 3 also moves forward along the slope track for a distance under the action of the constrained focus turntable 11 (see Figure 6 At this time, the carcass 8 is separated from the guide member 4 and further compressed inward (toward) by a dimension L1. Figure 5 As shown, the center line of the carcass 8 coincides with the center of the laser beam range 10, and the minimum distance between the laser light emitting surface 16 and the curved surface is dimension L, which is the standard focal length of laser marking. At this time, the laser unit 7 quickly performs marking and burning, which can ensure the continuity, completeness, accuracy and clarity of the laser marking content.
[0093] The time for laser marking each carcass 8 mainly depends on the complexity of the marking content. The time required for simple marking content is short, while the time required for complex marking content is long. A set of quick ejection devices 9 is arranged on the side of the main rail 1. The quick ejection hook of the quick ejection device 9 is unidirectional, that is, it will not hinder the passage of the hook 3 from the back to the front, but can quickly eject the hook 3 forward. Figure 6 The marking process takes a while. During this period of time, all hooks 3 continue to move forward under the drive of the conveyor chain. The distance between each pusher 2 is S0. Since the hook 3 of the marking station is in the unhooked state, the distance between the hook 3 behind the marking station and the hook 3 of the marking station is S1<S0, and the distance between the hook 3 in front of the marking station and the hook 3 of the marking station is S2>S0. At this time, their mutual relationship is S0-S1=S2-S0. As the laser marking proceeds, S1 continues to decrease and S2 continues to increase.
[0094] 4. Rapid ejection after marking and burning. At the moment when marking and burning are completed, the constrained focus turntable 11 is driven by the turntable drive motor 6 to quickly rotate in the direction of the production line, and does not stop to the initial blocking position (such as Figure 2 and Figure 3 As shown, any arc surface on the constrained focusing turntable 11 can be rotated to this position). When the constrained focusing turntable 11 is started, the quick ejection device 9 is also started, and the speeds of the two are matched, and the carcass 8 is jointly pushed out of the marking section 102. The stop position of the ejection can just reconnect the hook 3 with the previously detached pusher head 2, so that the carcass 8 after the marking and burning is completed continues to run along the production line direction (the pusher head 2 is unidirectional, that is, it will not hinder the passage of the hook 3, but can push the hook 3 forward along its forward direction). At this time, the hook 3 that has not yet entered the marking station runs to the breakpoint position of the main rail 1 under the action of its pusher head 2, and falls on the marking section 102, and the above process is repeated.
[0095] Embodiment 4
[0096] Based on any one of the solutions in Example 2, Figure 7-10 As shown, the constraint structure includes a contoured leaning rod 13, and the hook 3 includes a hook frame and a hook body. The hook frame is slidably connected to the main guide rail 1, and the middle part of the hook body is rotatably connected to the hook frame, and the hook body can be horizontally rotated around a vertical axis, and both ends of the hook body are respectively provided with hooks for hanging the carcass 8. The guide constraint assembly is divided into two groups, and the two groups of the guide constraint assemblies are respectively located on both sides below the main guide rail 1, one end of the contoured leaning rod 13 is fixedly connected to the other end of the guide member 4, and the contoured leaning rod 13 has a concave arc surface, and the other ends of the contoured leaning rods 13 of the two groups of the guide constraint assemblies are staggered front and back along the movement direction of the hook 3.
[0097] The carcass 8 moves along the guide 4 into the profiling rod 13, and is positioned at the marking station. The positioning is fast and stable, and the distance between the carcass 8 and the laser unit is fixed, so there will be no problem of unclear marking content. After the carcass 8 is marked, it moves away from the marking station from between the other ends of the profiling rod 13 of the two sets of guide and constraint components.
[0098] Specifically, there are two groups of guide constraint components, and two laser units 7 are also provided accordingly. The two laser units 7 are respectively located on both sides of the main rail 1. The two groups of guide constraint components can adjust the guide members 4 on both sides to a suitable spacing according to actual conditions. Each group includes at least one guide constraint component. When each group includes at least two guide constraint components, at least two guide constraint components are arranged at intervals up and down, and the corresponding laser unit 7 is arranged between two adjacent guide constraint components up and down. In the height direction (see Figure 8), the spacing between at least two guide constraint components can be adjusted according to the length of the carcass 8 to adapt to the curve of the carcass 8 and ensure complete contact with all parts of the carcass 8.
[0099] Specifically, a hook guide wheel is rotatably provided on the hook frame, and the hook guide wheel rolls along the main guide rail 1 to achieve a sliding connection between the hook frame and the main guide rail 1.
[0100] On the basis of the above scheme, it also includes a shaping mechanism 14 and a guide shuttle 15, wherein one end of the guide member 4 of a group of the guide constraint components is fixedly connected to the shaping mechanism 14 extending along the length direction of the main rail 1, and the other end of the contoured support rod 13 of the group of the guide constraint components is arranged rearward along the movement direction of the hook 3, and the guide shuttle 15 is fixed below between the two groups of the guide constraint components.
[0101] When the lower part of the carcass 8 enters the range of the guide shuttle 15, the lower parts of the two carcasses 8 on the hook 3 will separate to both sides and move closely against the guide shuttle 15, so that the lower part of the carcass will obtain an effective support and move smoothly without shaking. Subsequently, one of the carcasses 8 on the hook 3 is pushed by the shaping mechanism 14, and the hook body on the hook 3 rotates relative to the hook frame, and the two carcasses 8 on the hook 3 are staggered front and back and enter between the two sets of guide constraint components.
[0102] Specifically, the rear end of the shaping mechanism 14 extends horizontally in a direction away from the main rail 1. The shaping mechanism 14 is in the shape of a rod or a vertical plate.
[0103] Specifically, the width of the rear end of the guide shuttle 15 gradually increases from the rear to the front, forming a V-shape, wherein the two side walls in the middle are parallel to each other.
[0104] In one specific example, the working process of the constraint and focus device is as follows: the carcass 8 is suspended on the hook 3, a plurality of pushers 2 are integrated on the conveyor chain at a fixed interval, the hook 3 is slidably connected to the main rail 1, and the carcass 8 can realize a uniform and continuous forward movement under the push of the pusher 2. Two sets of guide constraint components are symmetrically arranged on both sides below the main rail 1.
[0105] 1. Entering the guiding stage: When the lower part of the carcass 8 enters the range of the guiding shuttle 15, the lower parts of the two carcasses 8 on one hook 3 will separate to both sides and move forward closely along the two sides of the guiding shuttle 15, so that the lower part of the carcass 8 will obtain an effective support.
[0106] The carcass 8 continues to move forward, and then one of the carcasses 8 on the hook 3 will contact the shaping mechanism 14. Under the action of the shaping mechanism 14, the hook body will deflect a certain angle, so that the carcasses 8 on both sides will form a front-and-rear layout, and continue to move forward while maintaining such a layout.
[0107] After passing through the shaping mechanism 14 , the carcass 8 enters the range of the guide member 4 . The guide member 4 is coated with a non-stick coating, which greatly reduces the friction coefficient between the carcass 8 and the guide member 4 .
[0108] 2. The hook falls and enters the marking station. The front end of the guide member 4 is equipped with a profiling rod 13, the shape of which simulates the outer contour of the carcass 8 to the greatest extent. When the carcass 8 is transferred to contact the profiling rod 13, similar to the second embodiment, the hook 3 falls on the marking section 102, and the push head 2 above as the power is separated from the hook 3. At this time, the carcass 8 stops at this position, which is the marking station of the laser unit 7.
[0109] The lateral spacing between the front ends of the contoured supporting rods 13 on both sides is L0. The specific value of L0 can be flexibly adjusted according to needs. In principle, it is necessary to ensure that the carcasses 8 on both sides are in full contact, and the carcasses 8 can be smoothly pushed out under the action of the quick pushing device 9 after marking is completed (L0 is greater than the thickness of one carcass 8 and less than the thickness of two carcasses 8).
[0110] 3. Marking and burning. When the carcass 8 is transferred to contact with the profiling rod 13, the pusher head 2 above as the power is separated from the hook 3, and the carcass 8 stops at this position, which is the marking position of the laser unit 7, and laser marking and burning are performed.
[0111] 4. Rapid ejection after marking. After laser marking is completed, the rapid ejection device 9 pushes the hook 3 and quickly ejects the hook 3 to the front of the previously separated pusher head 2. As the pusher head 2 continues to move forward, the pusher head 2 reconnects with the hook 3. Under the action of the pusher head 2, the marked carcass 8 continues to move forward. At this time, the rear carcass 8 basically arrives at the marking station at the same time, and the above process is repeated.
[0112] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0113] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0114] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0115] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "instance", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.
[0116] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0117] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A constrained focus device, characterized in that: The invention comprises a main rail (1), a pushing mechanism, a hook (3) and a guide constraint component, wherein the guide constraint component is arranged on one side below the main rail (1), the guide constraint component comprises a guide member (4), the outer surface of the guide member (4) has a lubricating layer, the pushing mechanism pushes the hook (3) to slide along the main rail (1), the hook (3) is used to hang a carcass (8), and the guide member (4) is arranged along the length direction of the main rail (1).
2. A constrained focus device according to claim 1, characterized in that: One end of the guide member (4) has an introduction section (12), and the introduction section (12) is arranged horizontally and gradually approaches the vertical plane where the main rail (1) is located along the moving direction of the hook (3).
3. The constrained focus device according to claim 1, characterized in that: The guide constraint assembly also includes a constraint structure, and the guide member (4) and the constraint structure are arranged in sequence along the length direction of the main rail (1).
4. A constrained focus device according to claim 3, characterized in that: The constraining structure comprises a constraining focus turntable (11) and a turntable drive motor (6); the constraining focus turntable (11) has a concave arc surface; the turntable drive motor (6) is fixedly arranged and drivingly connected to the constraining focus turntable (11); the turntable drive motor (6) can drive the constraining focus turntable (11) to rotate until the arc surface faces the guide member (4), faces the vertical plane where the main guide rail (1) is located, or faces away from the guide member (4).
5. A constrained focus device according to claim 4, characterized in that: The constrained fixed-focus turntable (11) is provided with at least two arc-shaped surfaces, and the at least two arc-shaped surfaces are evenly distributed along the circumference of the constrained fixed-focus turntable (11).
6. The constrained focus device according to claim 4, characterized in that: The hook (3) comprises a hook frame and a hook body, the hook frame is slidably connected to the main guide rail (1), the middle part of the hook body is connected to the hook frame, and both ends of the hook body are respectively provided with hooks for hanging the carcass (8), and the guide constraint components are divided into two groups, and the two groups of guide constraint components are respectively located on both sides below the main guide rail (1).
7. The constrained focus device according to claim 3, characterized in that: The restraining structure comprises a contoured leaning rod (13), the hook (3) comprises a hook frame and a hook body, the hook frame is slidably connected to the main guide rail (1), the middle part of the hook body is rotatably connected to the hook frame, and the hook body can be horizontally rotated around a vertical axis, and the two ends of the hook body are respectively provided with hooks for hanging the carcass (8), the guide restraining assembly is divided into two groups, and the two groups of the guide restraining assemblies are respectively located on both sides below the main guide rail (1), one end of the contoured leaning rod (13) is fixedly connected to the other end of the guide member (4), the contoured leaning rod (13) has an inwardly concave arc surface, and the other ends of the contoured leaning rods (13) of the two groups of the guide restraining assemblies are staggered front and back along the movement direction of the hook (3).
8. The constrained focus device according to claim 7, characterized in that: It also includes a shaping mechanism (14) and a guide shuttle (15), wherein one end of the guide member (4) of a group of the guide constraint components is fixedly connected to the shaping mechanism (14) extending along the length direction of the main guide rail (1), and the other end of the contoured support rod (13) of the group of the guide constraint components is arranged rearward along the movement direction of the hook (3), and the guide shuttle (15) is fixed below between the two groups of the guide constraint components.
9. A constrained focus device according to any one of claims 3 to 8, characterized in that: The main guide rail (1) comprises a first transport section (101), a marking section (102) and a second transport section (103) which are arranged in sequence, the rear end of the marking section (102) being located below the front end of the first transport section (101), the front end of the marking section (102) extending obliquely upward and being fixedly connected to the rear end of the second transport section (103), the restraining structure being located below the marking section (102), The pushing mechanism comprises a conveying assembly and a quick ejection device (9), wherein the conveying assembly comprises a conveying chain and a pushing head (2), wherein the conveying chain is arranged along the length direction of the main rail (1), and a plurality of pushing heads (2) are installed thereon at intervals, and the pushing head (2) pushes the hook (3) in one direction. The quick ejection device (9) is located on one side of the main rail (1) and is used to push the hook (3) from the marking section (102) to the second transport section (103).
10. The constrained focus device according to claim 9, characterized in that: The pusher head (2) comprises a pusher head base block, a pusher head hook and a pusher head elastic member, wherein the pusher head base block is fixedly connected to the conveying chain, one end of the pusher head hook is rotatably connected to the pusher head base block, the pusher head base block has a pusher head limiting portion, and the pusher head elastic member applies an elastic force to the pusher head hook to rotate it to the rear side and abut against the pusher head limiting portion.