Bed middle beam machining production line

Abstract

The invention discloses a machine tool middle beam machining production line, and relates to the technical field of stamping machining, the machine tool middle beam machining production line comprises a feeding device and a stamping device, and the stamping device machines a workpiece through a multi-station die provided with a first die set, a second die set and a third die set; when the multi-station die is closed, the first die set, the second die set and the third die set are closed at the same time for machining, so that the machining procedures of punching hole features, punching curled edges and bending are achieved at the same time, transfer is not needed among the multiple procedures, the labor cost is saved, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping processing, and particularly relates to a production line for processing a bed middle beam. Background Art

[0002] In the field of furniture production, bed middle beam fittings need to be processed through processes such as sheet metal stamping and drilling. During the stamping process, it is necessary to gradually stamp and form. However, the current processing method requires multiple stamping devices to achieve different processing steps, and there are relatively many material changeovers in the middle, thus consuming more time and having an adverse impact on production efficiency. Moreover, the material changeover process is completed manually, resulting in high labor costs and high labor intensity. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present invention provides a production line for processing a bed middle beam, in which multiple processes are completed in one die, which can improve processing efficiency.

[0004] A production line for processing a bed middle beam according to an embodiment of the present invention includes: A feeding device for conveying a sheet; A stamping device disposed on one side of the feeding device. The stamping device includes a multi-station die. The multi-station die includes a first die set, a second die set, and a third die set arranged in sequence along the moving direction of the sheet. The first die set, the second die set, and the third die set are each provided with a driving plate, a knife plate, and a blank holding plate arranged in a stacked manner from top to bottom. The knife plate has a plurality of cutting tools that can pass through the blank holding plate, and the driving plate can drive the knife plate to move relative to the blank holding plate. The first die set can cut the sheet into multiple monomers, the second die set is used to punch flanges on both sides of the monomer, and the third die set can bend the two wings of the monomer and can form the monomer into a trough-shaped part.

[0005] A production line for processing a bed middle beam according to an embodiment of the present invention has at least the following beneficial effects: In this embodiment, the workpiece is processed by a multi-station die having a first die set, a second die set, and a third die set. When the multi-station die is closed, the first die set, the second die set, and the third die set are closed simultaneously for processing, so as to simultaneously realize the processing procedures of punching hole features, punching flanges, and bending. There is no need to frequently switch dies and transport between multiple processes, which is beneficial to saving labor costs and improving processing efficiency.

[0006] According to some embodiments of the present invention, the first die set includes a first knife plate and a first blank holding plate, the second die set includes a second knife plate and a second blank holding plate, and the third die set includes a third knife plate and a third blank holding plate.

[0007] According to some embodiments of the present invention, the first die set is capable of forming a plurality of hole features on the surface of the sheet material. The hole features include a first partition hole and a second partition hole. Along the width direction of the multi-station die, the first partition hole and the second partition hole are arranged in a staggered manner.

[0008] According to some embodiments of the present invention, the hole features further include a third partition hole. The third partition hole is located between two adjacent monomers and close to any end of the monomer. And when the third partition hole is formed, a strip of material can be formed. The strip of material can keep a plurality of monomers connected.

[0009] According to some embodiments of the present invention, the second die set is provided with a first flanging bottom die and a second flanging bottom die. The first flanging bottom die and the second flanging bottom die are used to form flanging edges on the monomers in sequence.

[0010] According to some embodiments of the present invention, the hole features further include a fourth partition hole. The fourth partition hole is located between the end of the monomer and the strip of material. And when the fourth partition hole is formed, an end plate can be formed at the end of the monomer close to the strip of material.

[0011] According to some embodiments of the present invention, the second die set is provided with a flanging upper die. The flanging upper die can press against the flanging edge and make the flanging edge curl to form a curled edge.

[0012] According to some embodiments of the present invention, the third die set is provided with a fourth flanging bottom die. The fourth flanging bottom die can press against the two wings of the monomer, so that the two sides of the monomer are bent to form a first folded edge.

[0013] According to some embodiments of the present invention, a discharging device is arranged at the bottom of the multi-station die. The discharging device is provided with an inclined discharging plate for discharging waste materials.

[0014] According to some embodiments of the present invention, the feeding device includes an unwinding device and a flattening device. The unwinding device can convey the sheet material to the flattening device. The flattening device is used to flatten the sheet material and convey the sheet material into the stamping device.

[0015] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the drawings and embodiments, where: Figure 1 is a side view of a processing production line for a bed middle beam in an embodiment of the present invention; Figure 2 is a first exploded view of a multi-station die in an embodiment of the present invention; Figure 3 is a schematic diagram showing the step-by-step formation of monomers on the sheet material in an embodiment of the present invention; Figure 4 is Figure 3 an enlarged view of A in Figure 5 a partial exploded view of the multi-station die in an embodiment of the present invention; Figure 6 a first exploded view of the multi-station die in an embodiment of the present invention; Figure 7 a cross-sectional view of the multi-station die in an embodiment of the present invention; Figure 8 is Figure 7 an enlarged view of B in Figure 9 is Figure 7 an enlarged view of C in Figure 10 is Figure 8 an enlarged view of D in Figure 11 is Figure 7 an enlarged view of E in Figure 12 is Figure 3 an enlarged view of F in

[0017] Reference numerals: Unwinding device 100; Flattening device 101; Discharging device 102; Stamping equipment 104; Multi-station die 105; Discharging plate 106; Driving plate 107; First die set 110; First cutting plate 112; First pressure plate 113; First guide 114; First punching block 115; Second punching block 116; Second guide 117; Second die set 120; Second cutting plate 122; Second pressure plate 123; First flanging bottom die 124; First flanging top die 1241; Second flanging bottom die 125; Second flanging top die 1251; Pneumatic spring 126; Curling top die 127; Third die set 130; Third cutting plate 132; Third pressure plate 133; Fourth flanging bottom die 135; Fourth flanging top die 1351; Fifth flanging bottom die 136; Fifth flanging top die 1361; Sheet material 140; Monomer 141; Strip 142; First separation hole 143; Second separation hole 144; Third separation hole 145; Fourth separation hole 146; Curl 147; First hem 148; Folded edge 149; First bend 1491; Second bend 1492; Auxiliary flanging 1493; End plate 150; Auxiliary hole 151; Fifth separation hole 152; Separation groove 153; First punching knife 161; Second punching knife 162; Third punching knife 163. Detailed implementation manners

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0022] Reference Figure 1 In an embodiment of the present invention, a bed center beam processing production line includes a feeding device and a stamping device 104. It can be understood that the feeding device includes a unwinding device 100 and a flattening device 101. The unwinding device 100 can unfold the rolled plate 140 and convey it to the flattening device 101. The flattening device 101 can flatten the plate 140 and is used to convey the plate 140 to the stamping device 104 to realize an automatic loading process.

[0023] It can be understood that the stamping equipment 104 is arranged on the side of the flattening device 101 away from the unwinding device 100, and the stamping equipment 104 includes a multi-station mold 105. The multi-station mold 105 includes a first mold group 110, a second mold group 120 and a third mold group 130 arranged in sequence along the moving direction of the plate 140. The first mold group 110, the second mold group 120 and the third mold group 130 are all provided with a driving plate 107, a knife plate and a pressing plate stacked from top to bottom. The driving plate 107 is driven and pressed down by a hydraulic device. The knife plate has a plurality of knives that can pass through the pressing plate. The driving plate 107 can drive the knife plate to move relative to the pressing plate, thereby realizing punching or bending of the plate 140 by the knife plate.

[0024] It is understandable that multiple cutting tools are provided on the tool plate. The cutting tools can form various hole features on the sheet 140, and the cutting tools can bend the sheet 140 and form a curled edge 147. Specifically, referring to Figure 2 , the first die set 110 is used to cut the sheet 140 into multiple monomers 141. The first die set 110 includes a first tool plate 112 and a first pressure plate 113. The first pressure plate 113 is used to press against the sheet 140 to prevent the sheet 140 from moving during the forming process of the hole features and improve the accuracy of punching. The first tool plate 112 has a first punching tool 161 and a second punching tool 162. The first punching tool 161 and the second punching tool 162 respectively form a first separation hole 143 and a second separation hole 144 on the sheet 140. Referring to Figure 5 and Figure 6 , it is understandable that along the width direction of the multi-station die 105, the first punching tool 161 and the second punching tool 162 are arranged in a staggered manner, so that the first separation hole 143 and the second separation hole 144 are arranged in a staggered manner. It is understandable that when the first punching tool 161 forms the first separation hole 143 on the sheet 140 and the second punching tool 162 forms the second separation hole 144 on the sheet 140, the first separation hole 143 and the second separation hole 144 are connected, thereby forming a separation groove 153 on the sheet 140 (as shown in Figure 12 ), so that the sheet 140 is composed of two separated monomers 141, which is convenient for further processing of the monomers 141 subsequently. It is understandable that the separation groove 153 is formed successively by the first punching tool 161 and the second punching tool 162. Compared with cutting the separation groove 153 at one time, it is beneficial to reduce the possibility of bending plastic deformation of the cut edge of the sheet 140 and is beneficial to improving the quality and aesthetics of the product.

[0025] It is understandable that the hole features further include a third separation hole 145, and the third separation hole 145 is located between two adjacent monomers 141 and close to any end of the monomer 141. Specifically, the third separation hole 145 is trapezoidal, and two of the side walls of the third separation hole 145 are inclined to the width direction of the multi-station die 105. At the same time, a strip 142 can be formed when the third separation hole 145 is formed. The strip 142 can keep the ends of multiple monomers 141 connected, realizing the synchronous conveying of multiple monomers 141, which is beneficial to improving production efficiency.

[0026] Furthermore, referring to Figure 4 and Figure 12, the hole feature further includes a fourth separation hole 146 and a fifth separation hole 152. The fourth separation hole 146 is located between the end of the monomer 141 and the strip 142, and when the fourth separation hole 146 is formed, it can cause the end plate 150 to be formed at the end of the monomer 141 close to the strip 142, so that the end plate 150 can be bent in subsequent processes. The fifth separation hole 152 is located on the other side of the plate 140 where the third separation hole 145 is provided, and the fifth separation hole 152 communicates with the separation groove 153, so that the strip 142 is formed on the other side of the plate 140 away from the end plate 150, so that strips 142 are provided at both ends of the monomer 141, and thus continuous feeding is realized through the strips 142 on both sides of the plate 140, which is beneficial to improving the stability during feeding and the production efficiency. Correspondingly, referring to Figure 5 and Figure 6 , the first knife plate 112 is provided with a third punching knife 163, and the third punching knife 163 is used to form the fifth separation hole 152 in the plate 140.

[0027] It can be understood that the third separation hole 145 is formed by stamping on both sides. Specifically, referring to Figure 3 、 Figure 5 and Figure 6 , the first knife plate 112 has a first punching block 115 and a second punching block 116. Along the moving direction of the plate 140, the first punching block 115 is located upstream of the second punching block 116. At the same time, along the vertical direction, the total projected area of the first punching block 115 and the second punching block 116 is equal to the projected area of the third separation hole 145. Therefore, when stamping, the first punching block 115 can first punch an auxiliary hole 151 in the plate 140, and when the plate 140 moves downstream, the second punching block 116 can further expand the auxiliary hole 151 into the third separation hole 145. Since one side of the third separation hole 145 is close to the strip 142 and the width of the strip 142 is narrow, compared with the one-time forming method, the step-by-step forming of the third separation hole 145 can avoid the bending plastic deformation of the cut edge of the plate 140, which is beneficial to improving the quality and aesthetics of the product.

[0028] Referring to Figure 5 , correspondingly, the first pressure plate 113 has a first guiding member 114, and the first guiding member 114 is provided with a guiding hole that can allow the first punching knife 161 and the second punching knife 162 to pass through, avoiding the swinging or deformation of the first punching knife 161 and the second punching knife 162 during the formation of the feature hole, which is beneficial to improving the punching stability and forming efficiency. Further, the first pressure plate 113 is also provided with a second guiding member 117, and the second guiding member 117 has a guiding hole that can allow the third punching knife 163 to pass through, so as to avoid the deformation of the third punching knife 163 during the formation of the fifth separation hole 152, so as to improve the forming stability of the hole feature.

[0029] Referring to Figure 6and Figure 7 , the second die set 120 includes a second knife plate 122 and a second pressure plate 123. The second knife plate 122 has a first flanging upper die 1241 and a second flanging upper die 1251, and the second die set 120 further includes a first flanging bottom die 124 and a second flanging bottom die 125. The first flanging bottom die 124 and the second flanging bottom die 125 are located at the bottom of the second pressure plate 123 facing away from the second knife plate 122 and are used to form flanging edges 149 on the monomer 141 in sequence. Specifically, referring to Figure 7 、 Figure 8 and Figure 10 , the first flanging upper die 1241 and the first flanging upper die 1241 are arranged in the vertical direction. During the stamping process, after the driving plate 107 presses down, the second knife plate 122 drives the first flanging upper die 1241 to move downward. Along the moving direction of the material plate, the two sides of the first flanging upper die 1241 press against the two side edges of the monomer 141 with the two sides of the first flanging bottom die 124, and the two sides of the monomer 141 form bent first bent portions 1491; when the material plate moves forward, the second knife plate 122 drives the second flanging upper die 1251 to move downward. Along the moving direction of the material plate, the two sides of the second flanging upper die 1251 press against the two side edges of the monomer 141 with the two sides of the second flanging bottom die 125, and the two sides of the monomer 141 form bent second bent portions 1492. It can be understood that along the moving direction of the material plate, the width of the first flanging upper die 1241 is greater than the width of the second flanging upper die 1251. The two second bent portions 1492 are between the two first bent portions 1491. After the second bent portions 1492 are formed, the first bent portions 1491 are above the second bent portions 1492, and an inclined auxiliary flanging 1493 is formed between the first bent portions 1491 and the second bent portions 1492.

[0030] Furthermore, referring to Figure 9 , the second die set 120 includes a curling upper die 127. The curling upper die 127 has arc surfaces located on both sides of the monomer 141. When the curling upper die 127 presses against the monomer 141, the arc surfaces can press against the tops of the first bent portions 1491. The first bent portions 1491 slide along the arc surfaces and deform. The ends of the first bent portions 1491 move along the wall surfaces of the arc surfaces towards the central part of the monomer 141, and the auxiliary flanging 1493 is gradually formed into a curled edge 147, thereby completing the curling edge 147 process. It can be understood that the curled edge 147 is used to enhance the structural rigidity at both ends of the monomer 141.

[0031] Referring to Figure 7 and Figure 11, it can be understood that the third die set 130 is provided with a third blank holder 133, a fourth flanging bottom die 135 and a fourth flanging top die 1351. The fourth flanging top die 1351 and the fourth flanging bottom die 135 are respectively located on the upper and lower sides of the third blank holder 133. Both sides of the fourth flanging bottom die 135 and the fourth flanging top die 1351 have inclined pressing surfaces. When the fourth flanging top die 1351 presses down, the two sides of the monomer 141 can form a first hem 148 inclined to the horizontal plane. Further, the third die set 130 further includes a fifth flanging bottom die 136 and a fifth flanging top die 1361 located downstream of the fourth flanging bottom die 135, which are used for further bending the monomer 141. It can be understood that both sides of the fifth flanging bottom die 136 have inclined pressing surfaces, and the distance between the two pressing surfaces on the fifth flanging bottom die 136 along the moving direction of the sheet 140 is smaller than the distance between the two pressing surfaces on the fourth flanging bottom die 135, so that the part between the two first hems 148 on the monomer 141 is bent, making the first hem 148 further inclined and approaching perpendicular to the horizontal plane, so as to form a groove-shaped component of the monomer 141.

[0032] Refer to Figure 6 , it can be understood that a plurality of pneumatic springs 126 are provided on the first cutting plate 112, the second cutting plate 122 and the third cutting plate 132. The pneumatic springs 126 can avoid rigid collisions and ensure the stability of the stamping process.

[0033] Refer to Figure 2 , it can be understood that a discharging device 102 is provided at the bottom of the multi-station die 105. The discharging device 102 is provided with an inclined discharging plate 106, and the discharging plate 106 can discharge waste materials to avoid the chips after punching processing staying in the multi-station die 105.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. A production line for processing the middle beam of a bed, characterized in that, Including: A feeding device for conveying a sheet; A stamping device provided on one side of the feeding device. The stamping device includes a multi-station die. The multi-station die includes a first die set, a second die set, and a third die set arranged in sequence along the moving direction of the sheet. The first die set, the second die set, and the third die set are each provided with a driving plate, a knife plate, and a blank holding plate arranged in a stacked manner from top to bottom. The knife plate has a plurality of cutting tools capable of passing through the blank holding plate, and the driving plate can drive the knife plate to move relative to the blank holding plate. The first die set can cut the sheet into a plurality of monomers, the second die set is used to punch flanges on both sides of the monomer, and the third die set can bend the two wings of the monomer and can form the monomer into a trough-shaped part.

2. The processing production line for a bed middle beam according to claim 1, wherein, The first die set includes a first knife plate and a first blank holding plate. The second die set includes a second knife plate and a second blank holding plate. The third die set includes a third knife plate and a third blank holding plate.

3. The processing production line for the middle beam of a bed according to claim 2, characterized in that, The first die set can form a plurality of hole features on the surface of the sheet. The hole features include a first separation hole and a second separation hole. Along the width direction of the multi-station die, the first separation hole and the second separation hole are arranged in a staggered manner.

4. A processing production line for a bed middle beam according to claim 3, characterized in that, The hole features further include a third separation hole. The third separation hole is located between two adjacent monomers and is close to any end of the monomer. When the third separation hole is formed, a strip of material can be formed, and the strip of material can keep the plurality of monomers connected.

5. A processing production line for a bed middle beam according to claim 1, characterized in that, The second die set is provided with a first flanging bottom die and a second flanging bottom die, and the first flanging bottom die and the second flanging bottom die are used to form flanging edges on the monomer in sequence.

6. The processing production line for a bed middle beam according to claim 4, wherein The hole features further include a fourth separation hole. The fourth separation hole is located between the end of the monomer and the strip of material, and when the fourth separation hole is formed, an end plate can be formed at the end of the monomer close to the strip of material.

7. The processing production line for a bed middle beam according to claim 5, characterized in that The second die set is provided with a flanging upper die, and the flanging upper die can press against the flanging edge and make the flanging edge curl to form a flange.

8. A processing production line for a bed middle beam according to claim 1, characterized in that The third die set is provided with a fourth flanging bottom die, and the fourth flanging bottom die can press against the two wings of the monomer, so that the two sides of the monomer are bent to form a first fold.

9. The processing production line for a bed middle beam according to claim 1, characterized in that A discharging device is provided at the bottom of the multi-station die. The discharging device is provided with an inclined discharging plate for discharging waste materials.

10. A processing production line for a bed middle beam according to claim 3, characterized in that, The feeding device includes an unwinding device and a flattening device. The unwinding device can convey the sheet to the flattening device. The flattening device is used to flatten the sheet and convey the sheet into the stamping device.

Images