Bucket pre-curling machine

Abstract

The present invention discloses a small barrel pre-curling machine, comprising: a frame, on which a working platform is arranged; a spindle assembly, comprising a lifting shaft, on which a tray for placing a workpiece is arranged at the top of the lifting shaft, a clearance hole is opened on the working platform corresponding to the tray, the tray is driven by the lifting shaft to extend or retract to the upper surface of the working platform, a fixed sleeve is arranged below the working platform, a pulley shaft sleeved on the lifting shaft is assembled on the fixed sleeve, the pulley shaft is driven by a first motor and is linked to the lifting shaft through a spline; a pressure plate assembly, comprising a fixed pressure frame arranged above the working platform, on which a pressure plate that cooperates with the tray to clamp the workpiece and rotates coaxially is arranged; a pre-curling assembly, comprising a reel arranged on the upper surface of the working platform, the reel is located on one side of the pressure plate assembly and moves relative to the pressure plate in a feeding manner, and a curling forming groove that touches the edge of the workpiece is arranged on the reel. The above-mentioned pre-curling machine has a high degree of automation, strong applicability, and is convenient for docking with existing production lines.

Description

Technical Field

[0001] The invention relates to the technical field of steel barrel production equipment, in particular to a small barrel pre-curling machine. Background Art

[0002] During the production of steel drums, the drum lid needs to be curled to better seal and fix it with the drum body. To facilitate subsequent processing, the pre-curling process will be carried out first. The current process is to manually carry the drum lid and then use the curling machine to complete the pre-curling. This method has high labor intensity, reduces production efficiency, and cannot meet the needs of the current automated production line. Considering the complex structure and high cost of fully automated equipment, coupled with differences in barrel size and positioning accuracy, the difficulty of equipment research and development has increased, and further design and optimization are needed. Summary of the invention

[0003] The purpose of the present invention is to provide a small barrel pre-curling machine, which can complete the automatic curling action of the barrel cover, cooperate with the production line flow, ensure the positioning accuracy, and improve the efficiency of the steel barrel production line.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A small barrel pre-curling machine, comprising:

[0006] A frame, wherein a working platform is arranged on the frame;

[0007] The spindle assembly includes a lifting shaft, a tray for placing workpieces is arranged on the top of the lifting shaft, a clearance hole is opened on the working platform corresponding to the tray, the tray is driven by the lifting shaft to extend or retract on the upper surface of the working platform, a fixed sleeve is arranged below the working platform, a pulley shaft sleeved on the lifting shaft is assembled on the fixed sleeve, the pulley shaft is driven by the first motor and is linked to the lifting shaft through a spline;

[0008] The pressure plate assembly comprises a fixed pressure frame arranged above the working platform, and the fixed pressure frame is provided with a pressure plate which cooperates with the pallet to clamp the workpiece and rotate coaxially;

[0009] The pre-rolling assembly includes a reel arranged on the upper surface of the working platform. The reel is located on one side of the pressure plate assembly and moves relative to the pressure plate. The reel is provided with a curling forming groove that touches the edge of the workpiece.

[0010] In particular, the main shaft assembly also includes a lifting cylinder, a guide column and a connecting seat. The bottom of the lifting shaft and the connecting seat are expanded and rotatably connected through bearings. The lifting cylinder is fixed on the frame upward, and the output rod of the lifting cylinder is fixed to the connecting seat. The guide column is arranged parallel to one side of the lifting cylinder and passes through the connecting seat, so that the connecting seat moves up and down along the guide column.

[0011] Particularly, the first motor is fixed on the frame, and a pulley is arranged on the output shaft of the first motor, and the pulley is connected to the pulley shaft through a belt transmission.

[0012] In particular, the fixed press frame includes a cross fork plate, the four corners of the cross fork plate are erected on the working platform through connecting rods, a core rod is arranged at the center of the cross fork plate, and the core rod is rotatably connected to the pressure plate through a bearing.

[0013] In particular, the pre-rolling assembly also includes a slide and a wheel seat. A linear guide rail facing the give-way hole is arranged on the working platform. The slide is arranged on the linear guide rail and is driven to slide by a second motor through a screw nut pair. The wheel seat is fixedly connected to the slide. A core shaft is erected on the slide. The winding wheel and the core shaft are rotatably connected through a bearing.

[0014] In particular, two groups of pre-rolling assemblies are provided, which are symmetrically arranged on both sides of the pressure plate assembly to align the workpieces.

[0015] In particular, it also includes a guide assembly, which includes a guide plate arranged on the upper surface of the working platform, and a workpiece flow channel leading to the clearance hole is formed between two guide plates.

[0016] In particular, the guide assembly also includes a first electric cylinder and a slide. A slide rail is arranged on the working platform. The slide is arranged on the slide rail and driven to slide by the first electric cylinder. The two sets of guide assemblies are arranged relative to each other to adjust the gap of the workpiece flow channel.

[0017] In particular, a second electric cylinder is arranged on the lower surface of the working platform, and an in-position sensing head for detecting the edge position of the workpiece is arranged on the output shaft of the second electric cylinder.

[0018] In summary, the beneficial effect of the present invention is that, compared with the prior art, the small barrel pre-curling machine realizes the process of the barrel cover reaching the set processing position to complete the pre-curling. During the process, the barrel cover is reliably positioned and clamped by the lifting shaft, the support plate, the pressure plate, etc., so as to achieve precise curling. It has a high degree of automation and an adjustment function. It is suitable for barrel covers of different sizes and is convenient for docking with existing production lines to realize fully automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a top view of a small barrel pre-curling machine provided by an embodiment of the present invention;

[0020] Figure 2 yes Figure 1 Sectional view at AA;

[0021] Figure 3 yes Figure 1 Cross-section at the middle BB;

[0022] Figure 4 yes Figure 2Middle C-direction perspective diagram;

[0023] Figure 5 yes Figure 2 Enlarged view of point D in the middle. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar parts or parts having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, it can be a mechanical connection, it can be an electrical connection, it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the description of the present invention, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0027] See also Figures 1 to 5 As shown, this preferred embodiment provides a small barrel pre-curling machine for pre-flanging barrel covers, which includes a frame 1, a spindle assembly, a pressure plate assembly, a pre-curling assembly and a guide assembly.

[0028] A working platform 2 is arranged on the frame 1 .

[0029] The spindle assembly includes a lifting shaft 3, a lifting cylinder 4, a guide column 5 and a connecting seat 6. A tray 7 for placing workpieces is arranged on the top of the lifting shaft 3, and a clearance hole 8 is opened on the working platform 2 corresponding to different sizes of the tray 7. The tray 7 is driven by the lifting shaft 3 to extend or retract on the upper surface of the working platform 2.

[0030] A fixed sleeve 9 is provided below the working platform 2, and a pulley shaft 10 mounted on the fixed sleeve 9 is mounted on the lifting shaft 3. The pulley shaft 10 is driven by a first motor 11 and is linked to the lifting shaft 3 through a spline. The first motor 11 is fixed to the frame 1, and a pulley 12 is provided on the output shaft of the first motor 11. The pulley 12 and the pulley shaft 10 are connected through a belt drive.

[0031] The bottom of the lifting shaft 3 is tightened and rotatably connected to the connecting seat 6 through a bearing. The lifting cylinder 4 is fixed on the frame 1 upward, and the output rod of the lifting cylinder 4 is fixedly connected to the connecting seat 6. The guide column 5 is arranged parallel to one side of the lifting cylinder 4 and passes through the connecting seat 6, so that the connecting seat 6 moves up and down along the guide column 5.

[0032] The pressure plate assembly includes a fixed pressure frame arranged above the working platform 2, on which is provided a pressure plate 13 which cooperates with the pallet 7 to clamp the workpiece and rotate coaxially. Here, the fixed pressure frame preferably includes a cross fork plate 14, and the four corners of the cross fork plate 14 are erected on the working platform 2 through connecting rods 15. A core rod 16 is arranged at the center of the cross fork plate 14, and the core rod 16 is rotatably connected to the pressure plate 13 through bearings.

[0033] The pre-rolling assembly includes a reel 17, a slide 18 and a wheel seat 19 arranged on the upper surface of the working platform 2. The reel 17 is located on one side of the pressure plate assembly and moves relative to the pressure plate 13. The reel 17 is provided with a curling forming groove 20 that touches the edge of the workpiece.

[0034] The working platform 2 is provided with a linear guide rail 21 facing the clearance hole 8. The slide 18 is arranged on the linear guide rail 21 and driven to slide by the second motor 22 through the screw nut pair 23. The wheel seat 19 is fixedly connected to the slide 18. A core shaft 24 is erected on the slide 18. The reel 17 and the core shaft 24 are rotatably connected through a bearing.

[0035] Preferably, two groups of pre-rolling assemblies are provided, which are symmetrically arranged on both sides of the pressure plate assembly to align the workpieces.

[0036] The guide assembly includes a guide plate 25, a first electric cylinder 26 and a slide 27 arranged on the upper surface of the working platform 2. A workpiece flow channel leading to the clearance hole 8 is formed between the two guide plates 25. A slide rail 28 is arranged on the working platform 2. The slide 27 is arranged on the slide rail 28 and driven to slide by the first electric cylinder 26. The two sets of guide assemblies are arranged relative to each other to adjust the gap of the workpiece flow channel.

[0037] In addition, a second electric cylinder 29 is arranged on the lower surface of the working platform 2, and an in-position sensing head for detecting the edge position of the workpiece is arranged on the output shaft of the second electric cylinder 29, so as to monitor whether there is a workpiece at the processing position and whether the workpiece is placed in place.

[0038] Processing:

[0039] 1) The barrel cover to be curled is guided by the guide plate 25 and detected by the in-position sensor head to reach the designated processing position on the working platform 2;

[0040] 2) The lifting cylinder 4 is activated to lift the lifting shaft 3 and the tray 7 beyond the working platform 2, and lift the barrel cover until it cooperates with the upper pressure plate 13 to clamp the barrel cover;

[0041] 3) The first motor 11 is started to drive the pulley shaft 10, the lifting shaft 3, the tray 7, the barrel cover, and the pressure plate 13 to rotate coaxially;

[0042] 4) The second motor 22 is started, and the reel 17 is driven to feed through the screw nut pair 23 until it contacts the edge of the barrel cover to complete the pre-curling;

[0043] 5) The reel 17 and the tray 7 are reset successively, and the barrel cover with completed curling is placed on the working platform 2, waiting for unloading.

[0044] In summary, the above-mentioned small barrel pre-curling machine realizes the process of pre-curling the barrel cover when it reaches the set processing position. During the process, the barrel cover is reliably positioned and clamped through the lifting shaft, support plate, pressure plate, etc., so as to accurately curl the barrel cover. It has a high degree of automation and an adjustment function. It is suitable for barrel covers of different sizes and is convenient for docking with existing production lines to realize fully automated production.

[0045] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above examples. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A small barrel pre-curling machine, characterized in that: include A frame, wherein a working platform is arranged on the frame; The main shaft assembly includes a lifting shaft and a lifting cylinder. A tray for placing a barrel cover is arranged on the top of the lifting shaft. A clearance hole is opened on the working platform corresponding to the tray. The tray is driven by the lifting shaft to extend or retract on the upper surface of the working platform. A fixed sleeve is arranged below the working platform. A pulley shaft sleeved on the lifting shaft is mounted on the fixed sleeve. The pulley shaft is driven by a first motor and is linked to the lifting shaft through a spline. The lifting cylinder is fixed on the frame upward. The pressure plate assembly comprises a fixed pressure frame arranged above the working platform, and the fixed pressure frame is provided with a pressure plate which cooperates with the tray to clamp the barrel cover and rotate coaxially; The pre-rolling assembly comprises a reel arranged on the upper surface of the working platform, the reel is located on one side of the pressure plate assembly and moves relative to the pressure plate, and the reel is provided with a curling forming groove that touches the edge of the barrel cover; the pre-rolling assembly also comprises a slide seat and a wheel seat, a linear guide rail facing the clearance hole is provided on the working platform, the slide seat is arranged on the linear guide rail, and is driven to slide by a second motor through a screw nut pair, the wheel seat is fixedly connected to the slide seat, a core shaft is erected on the slide seat, and the reel and the core shaft are rotatably connected through a bearing; It also includes a guide assembly, wherein the guide assembly is provided in two groups and is arranged opposite to each other, and the two groups of the guide assemblies each include a guide plate arranged on the upper surface of the working platform, and a workpiece flow channel leading to the give-way hole is formed between the two guide plates; A second electric cylinder is arranged on the lower surface of the working platform, and an in-position sensing head for detecting the position of the edge of the barrel cover is arranged on the output shaft of the second electric cylinder; The barrel cover to be curled is guided by the guide plate and detected by the in-position sensor head to reach the designated processing position on the working platform; The lifting cylinder is actuated to lift the lifting shaft and the tray beyond the working platform, and lift the barrel cover until it cooperates with the pressure plate above to clamp the barrel cover; The first motor is started to drive the pulley shaft, the lifting shaft, the tray, the barrel cover, and the pressure plate to rotate coaxially; The second motor is started, and the reel is driven to feed through the screw nut pair until it contacts the edge of the barrel cover to complete the pre-curling; The reel and the tray are reset successively, and the barrel cover with completed curling is placed on the working platform, waiting for unloading.

2. The barrel pre-curling machine according to claim 1, characterized in that: The main shaft assembly also includes a guide column and a connecting seat. The bottom of the lifting shaft is tightened and rotatably connected to the connecting seat through a bearing. The output rod of the lifting cylinder is fixedly connected to the connecting seat. The guide column is arranged parallel to one side of the lifting cylinder and passes through the connecting seat, so that the connecting seat moves up and down along the guide column.

3. The barrel pre-curling machine according to claim 1, characterized in that: The first motor is fixed on the frame, and a pulley is arranged on the output shaft of the first motor, and the pulley is connected to the pulley shaft through a belt transmission.

4. The small barrel pre-curling machine according to claim 1, characterized in that: The fixed pressure frame comprises a cross fork plate, the four corners of the cross fork plate are erected on the working platform through connecting rods, a core rod is arranged at the center of the cross fork plate, and the core rod is rotatably connected to the pressure plate through a bearing.

5. The barrel pre-curling machine according to claim 1, characterized in that: The pre-rolling assembly is provided with two groups, which are symmetrically arranged on both sides of the pressure plate assembly to align the barrel cover.

6. The barrel pre-curling machine according to claim 1, characterized in that: The guide assembly also includes a first electric cylinder and a slide table. A slide rail is arranged on the working platform. The slide table is arranged on the slide rail and is driven to slide by the first electric cylinder to adjust the gap of the workpiece flow channel.

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