U-shaped corner guard forming machine

Abstract

The present invention discloses a U-shaped corner guard forming machine, comprising a positioning die, a cutter, a heating device, a bending device and a slitting device; the positioning die is provided with a transversely penetrating material feeding channel and a longitudinally penetrating knife groove; the cutter can be longitudinally movably arranged at the knife groove to cut a notch in the middle of a strip; the heating device is arranged on one side of the cutter to heat the cutter so that the cutter melts the two opposite sides of the notch while cutting the notch; the bending device is arranged on the upper side of the front end of the positioning die to bend the front end of the strip downward so that the two sides of the notch are bonded; the slitting device is arranged on one side of the bending device to separate the formed corner guard from the strip. The U-shaped corner guard forming machine of the present invention has the advantages of high production efficiency, low cost and good quality.

Description

Technical Field

[0001] The invention relates to a U-shaped corner guard forming machine, in particular to a U-shaped corner guard forming machine with high production efficiency, low cost and good quality. Background Art

[0002] In the production process, in order to protect expensive equipment and products, corner wraps are generally used to wrap the corners of these equipment or products. These corner wraps are made of pearl cotton foam material, which plays a buffering role for the equipment and products to prevent them from being damaged during transportation. Figure 1 As shown, it is a wrap angle with a U-shaped groove, which is generally used to wrap plate-shaped workpieces or equipment. The existing technology for producing this kind of wrap angle usually involves first cutting out the two sides of the wrap angle separately, then gluing or heating and melting the two sides, and finally bonding the two sides together. The above three steps are carried out separately, using different machines and equipment and assisted by workers. However, this method has very low production efficiency and cannot meet the requirements of mass production. It is costly, and the two sides cannot be accurately aligned, resulting in poor splicing quality and poor aesthetics. Summary of the invention

[0003] The purpose of the present invention is to provide a U-shaped corner guard forming machine with high production efficiency, low cost and good quality.

[0004] In order to achieve the above-mentioned purpose, the U-shaped corner guard forming machine provided by the present invention includes a positioning die, a cutter, a heating device, a bending device and a slitting device; the positioning die is provided with a transversely penetrating material feeding channel and a longitudinally penetrating knife groove; the cutter can be longitudinally movably arranged at the knife groove to cut a slit in the middle of the strip material; the heating device is arranged on one side of the cutter to heat the cutter so that the cutter melts the two opposite sides of the slit while cutting the slit; the bending device is arranged on the upper side of the front end of the positioning die to bend the front end of the strip material downward so that the two sides of the slit are bonded; the slitting device is arranged on one side of the bending device to separate the formed corner guard from the strip material.

[0005] Compared with the prior art, the present invention provides a transversely penetrating material feeding channel and a longitudinally penetrating knife groove on the positioning die, uses the material feeding channel to convey and limit the strip material, and at the same time, by longitudinally movably setting the cutter at the knife groove, and using a heating device to heat the cutter at the same time, the strip material is cut and the materials on both sides of the cut are melted; therefore, the two melted sides can be bonded together by bending the front end of the strip material through a bending device. The whole process of cutting and hot melting is carried out simultaneously, and the step of cutting the previous corner guard and the step of bending the next corner guard are also carried out simultaneously. The whole production process is carried out continuously, so the production time can be shortened, the production efficiency can be improved, and the production cost can be reduced; and because the three steps of cutting, hot melting and bending are all carried out under the positioning of the positioning die, the strip material is accurately positioned, the cuts are few, and the bonding position is accurate, so the quality of the corner guard molding is very good and the product is beautiful.

[0006] Preferably, a through hole is provided on the upper side of the front end of the positioning die, and the lower pressure head of the bending device can pass through the through hole to press the strip material. By providing the through hole, the bending device can bend the strip material while it is still in the positioning die, so that the strip material can still be limited by the positioning die at the beginning of bending, thereby ensuring the accuracy of the bending direction and improving the quality of the bending.

[0007] Preferably, the cross-sections of the knife groove and the cutting knife are both in an inverted V-shaped structure.

[0008] Preferably, the U-shaped corner guard forming machine further comprises a feeding device, and the feeding device feeds the strip material into the feeding channel. By providing the feeding device, the U-shaped corner guard forming machine can achieve the purpose of automatic feeding, with a high degree of automation, which is conducive to improving production efficiency.

[0009] Specifically, the feeding device includes a translation drive mechanism, a bracket, a first cylinder and a positioning needle, the positioning needle is connected to the output end of the first cylinder, the first cylinder is arranged on the bracket to drive the positioning needle to be inserted into the strip material, and the translation drive mechanism drives the bracket to move laterally. By using the first cylinder and the positioning needle, the positioning needle can be inserted into the strip material to achieve the purpose of grasping the strip material, and then the translation drive mechanism is used to translate it, so that the strip material can be repeatedly pushed forward in a step-by-step manner, and then it can cooperate with the cutter, the bending device and the slitting device to improve production efficiency.

[0010] Specifically, the U-shaped corner guard forming machine further includes a pressure roller set, which is arranged on the feeding side of the feeding device to clamp and roll the strip material. The pressure roller set is used to clamp the strip material up and down, so that the strip material is in a suspended state when feeding and is accurately aligned with the feeding channel of the positioning mold, thereby reducing the friction resistance of the strip material and improving the smoothness and accuracy of feeding.

[0011] Preferably, the U-shaped corner guard forming machine further comprises a cutter driving device, and the cutter driving device drives the cutter to move longitudinally, so that the cutter can cut automatically, the degree of automation is high, and the production efficiency is effectively improved.

[0012] Preferably, the bending device includes a second cylinder and a downward pressure head, the output end of the second cylinder is arranged to be telescopic downward, and the downward pressure head is connected to the output end of the second cylinder.

[0013] Preferably, the heating device comprises a heating plate, a heating element and a third cylinder, wherein the heating element is arranged on the heating plate, the heating plate is arranged at the output end of the third cylinder, and the third cylinder drives the heating plate to approach and contact the cutter. By installing the heating element on the heating plate and installing the heating plate on the third cylinder, the third cylinder is used to push the heating plate to contact or separate from the cutter, thereby heating the cutter when not cutting and leaving the cutter when cutting, avoiding interference with the cutter and ensuring that the heating and cutting of the cutter do not affect each other.

[0014] Preferably, the slitting device comprises a fourth cylinder and a slitting knife, the output end of the fourth cylinder is arranged to be vertically telescopic, and the slitting knife is connected to the output end of the fourth cylinder to cut the corner protector off the strip material.

[0015] Preferably, the U-shaped corner guard forming machine further comprises a pressing mechanism, which is arranged on a side opposite to the slitting device to stabilize the corner guard during slitting. The pressing mechanism can provide a pressing force opposite to the slitting device, thereby maintaining the stability of the corner guard during cutting and improving the cutting quality.

[0016] Preferably, a carrier extending along the material conveying channel is further provided inside the positioning mold, and an accommodating space for accommodating the strip material is provided between the carrier and the positioning mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the U-shaped corner guard forming machine of the present invention.

[0018] Figure 2 It is a top view of the U-shaped corner guard forming machine of the present invention.

[0019] Figure 3 It is a side view of the U-shaped corner guard forming machine of the present invention with the frame removed.

[0020] Figure 4 It is a structural diagram of a positioning die and a carrier of a U-shaped corner guard forming machine of the present invention.

[0021] Figure 5 It is a structural diagram of the feeding device of the U-shaped corner guard forming machine of the present invention.

[0022] Figure 6 It is an exploded view of the feeding device of the U-shaped corner guard forming machine of the present invention.

[0023] Figure 7 It is a structural diagram of a cutter and a cutter driving device of a U-shaped corner guard forming machine of the present invention.

[0024] Figure 8 It is a structural diagram of the bending device of the U-shaped corner guard forming machine of the present invention.

[0025] Fig. 9 It is a structural diagram of a cutting knife and a heating device of a U-shaped corner guard forming machine of the present invention.

[0026] Fig.10 It is a structural diagram of the slitting device and the pressing mechanism of the U-shaped corner guard forming machine of the present invention. DETAILED DESCRIPTION

[0027] In order to explain the technical content, structural features and achieved effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

[0028] like Figures 1 to 3As shown, the U-shaped corner guard forming machine 100 of the present invention is suitable for forming a strip material 200 with a U-shaped groove, and includes a positioning die 1, a cutter 2, a cutter driving device 3, a heating device 4, a bending device 5, a slitting device 6 and a frame 7; the positioning die 1, the cutter 2, the cutter driving device 3, the heating device 4, the bending device 5 and the slitting device 6 are arranged on the frame 7. There are multiple positioning dies 1, and they are arranged in a longitudinal arrangement; the cutter 2, the heating device 4, the bending device 5 and the slitting device 6 are all corresponding to each positioning die 1, that is, the cutter 2, the heating device 4, the bending device 5 and the slitting device 6 can operate all the positioning dies 1 at the same time to improve production efficiency. The following is only described based on a single positioning die 1. The positioning die 1 is provided with a feed channel 11 that runs through transversely and a knife groove 12 that runs through longitudinally; the cross section of the positioning die 1 is inverted U-shaped, the cross section of the feed channel 11 is inverted U-shaped, the cross sections of the knife groove 12 and the cutter 2 are both inverted V-shaped structures, and the top angles of the inverted V-shaped structures of the knife groove 12 and the cutter 2 in the present application are right angles. The knife groove 12 is located at the lower front end of the positioning die 1. The cutter 2 can be longitudinally movably arranged at the knife groove 12 to cut a notch in the middle of the strip 200; the cutter drive device 3 drives the cutter 2 to move longitudinally, so that the cutter 2 can cut automatically, with a high degree of automation, effectively improving production efficiency. The heating device 4 is arranged on one side of the cutter 2 to transfer heat to the cutter 2 and heat the cutter 2, so that the cutter 2 melts the two opposite sides of the cut while cutting the cut; the bending device 5 is arranged on the upper side of the front end of the positioning mold 1 to bend the front end of the strip 200 downward so that the two melted sides of the cut are bonded; the slitting device 6 is arranged on one side of the bending device 5 to separate the formed corner guard 201 from the strip 200. More specifically:

[0029] See also Figure 4 A through hole 13 is provided on the upper side of the front end of the positioning die 1, and the lower pressure head of the bending device 5 can pass through the through hole 13 to press the strip material 200. By providing the through hole 13, the bending device 5 can bend the strip material 200 while it is still in the positioning die 1, so that the strip material 200 can still be limited by the positioning die 1 at the beginning of bending, thereby ensuring the accuracy of the bending direction and improving the quality of the bending. A supporting body 14 extending along the feed channel 11 is also provided inside the positioning die 1, and the supporting body 14 extends out of the input port of the feed channel 11. There is an accommodating space between the supporting body 14 and the positioning die 1, and the strip material 200 is located in the accommodating space.

[0030] See also Figure 5 and Figure 6, the U-shaped corner bead forming machine 100 also includes a feeding device 8, and the feeding device 8 can automatically feed the strip material 200 into the feeding channel 11. By setting the feeding device 8, the U-shaped corner bead forming machine 100 can achieve the purpose of automatic feeding, with a high degree of automation, which is conducive to improving production efficiency. Specifically, the feeding device 8 includes a translation drive mechanism 81, a bracket 82, a first cylinder 83 and a positioning needle 84, the positioning needle 84 is connected to the output end of the first cylinder 83, the first cylinder 83 is arranged on the bracket 82 to drive the positioning needle 84 to insert into the strip material 200, and the bracket 82 is arranged on the frame 7 in a transverse sliding manner. The translation drive mechanism 81 drives the bracket 82 to move laterally. By using the first cylinder 83 and the positioning needle 84, the positioning needle 84 can be inserted into the strip material 200 to achieve the purpose of grasping the strip material 200, and then the translation drive mechanism 81 is used to translate it, so that the strip material 200 can be repeatedly pushed forward in a step-by-step manner, and then it can cooperate with the cutter 2, the bending device 5 and the slitting device 6 to improve production efficiency.

[0031] Combination Figure 3 and Figure 4 As shown, the U-shaped corner guard forming machine 100 also includes a roller group 9, which is arranged on the feeding side of the feeding device 8 to clamp and roll the strip material 200. The roller group 9 includes an upper roller 91 and a lower roller 92, wherein the upper roller 91 is arranged above the carrier 14, and the lower roller 92 is arranged at the end of the carrier 14. The upper roller 91 and the lower roller 92 roll the strip material 200 together. The roller group 9 is used to clamp the strip material 200 up and down, so that the strip material 200 is in a suspended state when feeding and is precisely aligned with the feeding channel 11 of the positioning mold 1, thereby reducing the friction resistance of the strip material 200 and improving the smoothness and accuracy of feeding.

[0032] See also Figure 7 The cutter driving device 3 includes a cutting cylinder 31 and a sliding seat 32. A guide rail is longitudinally provided on the frame 7. The sliding seat 32 is slidably arranged on the guide rail. The cutter 2 is longitudinally arranged and installed on the sliding seat 32. The output end of the cutting cylinder 31 is connected to the sliding seat 32 to push the sliding seat 32 to move longitudinally, so that the cutter 2 can slide from one side of the positioning mold 1 through the knife groove 12 to the other side of the positioning mold 1. The cutter 2 is provided with a heat conductive sheet 21, and the heat conductive sheet 21 can be in thermal contact with the heating plate 41 of the heating device 4.

[0033] See also Figure 8The bending device 5 includes a second cylinder 51 and a lower pressure head 52. The output end of the second cylinder 51 is telescopically arranged downward, and the lower pressure head 52 is longitudinally arranged and connected to the output end of the second cylinder 51.

[0034] See also Fig. 9 The heating device 4 includes a heating plate 41, a heating element 42 and a third cylinder 43. The heating element 42 is arranged on the heating plate 41, and the heating plate 41 is arranged at the output end of the third cylinder 43. The third cylinder 43 drives the heating plate 41 to approach and contact the cutter 2. By installing the heating element 42 on the heating plate 41 and installing the heating plate 41 on the third cylinder 43, the third cylinder 43 is used to push the heating plate 41 to contact or separate from the heat conductive sheet 21, so that the cutter 2 can be heated when not cutting, and can be separated from the cutter 2 when cutting, so as to avoid interference with the cutter 2, and ensure that the heating and cutting of the cutter 2 do not affect each other.

[0035] See also Fig.10 The slitting device 6 includes a fourth cylinder 61 and a slitting knife 62. The output end of the fourth cylinder 61 is vertically telescopically arranged. The slitting knife 62 is longitudinally arranged and connected to the output end of the fourth cylinder 61 to cut the corner protector 201 from the strip material 200.

[0036] The U-shaped corner bead forming machine 100 further includes a pressing mechanism 10, which is disposed on a side opposite to the slitting device 6 to stabilize the corner bead 201 during slitting. The pressing mechanism 10 includes a fifth cylinder 101 and a pressing member 102, which is arranged longitudinally and connected to the output end of the fifth cylinder 101. The pressing mechanism 10 can provide a pressing force opposite to the slitting device 6, thereby maintaining the stability of the corner bead 201 during cutting and improving the cutting quality.

[0037] In summary, the working principle of the U-shaped corner guard forming machine 100 of the present invention is described in detail as follows:

[0038] First, the strip material 200 is aligned with the positioning mold 1 and placed between the upper pressure roller 91 and the lower roller 92. Then, the translation drive mechanism 81 drives the bracket 82 to move so that the positioning pin 84 is close to the strip material 200, and the first cylinder 83 is started to drive the positioning pin 84 to be inserted into the strip material 200. Next, the translation drive mechanism 81 drives the bracket 82 to move forward so that the positioning pin 84 pulls the strip material 200 forward and enters the feed channel 11. While feeding, the third cylinder 43 pushes the heating plate 41 to contact the heat conducting sheet 21 of the cutter 2, and the heating element 42 heats the heating plate 41. The heat is transferred from the heating plate 41 and the heat conducting sheet 21 to the cutter 2 to heat the cutter 2.

[0039] When the front end of the strip material 200 reaches the knife groove 12, the feeding device 8 stops feeding. The third cylinder 43 drives the heating plate 41 to leave the heat conducting plate 21. At this time, the cutting cylinder 31 starts and drives the sliding seat 32 to move longitudinally, thereby driving the cutter 2 to slide from one side of the positioning mold 1 through the knife groove 12 to the other side of the positioning mold 1. This process cuts off the strip material 200 located on the knife groove 12, so that the strip material 200 is cut into an inverted V-shaped incision. At the same time, the heat on the cutter 2 heats the side surface of the incision into a molten state. After that, the cutter 2 is reset, and the heating device 4 continues to heat the cutter 2.

[0040] Afterwards, the second cylinder 51 is activated to drive the pressing head 52 to move downward, and the pressing head 52 passes through the through hole 13 and presses the strip 200, so that the front end of the strip 200 is bent downward, and the bending line is at the vertex of the inverted V-shaped cut. After bending 90 degrees, one side of the inverted V-shaped cut contacts the other side, and after cooling, the two sides of the cut can be bonded together to form the corner guard 201.

[0041] When the bonding is completed, the feeding device 8 is started again, driving the strip material 200 to move forward one step, and the step distance is equal to the length of one corner guard 201. After that, the fourth cylinder 61 and the fifth cylinder 101 are started at the same time, the fifth cylinder 101 drives the pressing member 102 to rise and press against the lower side of the corner guard 201, and the fourth cylinder 61 drives the slitting knife 62 to move downward to cut the strip material 200, so that the corner guard 201 is separated from the strip material 200 to form a finished product.

[0042] Compared with the prior art, the present invention provides a transversely penetrating material feeding channel 11 and a longitudinally penetrating knife groove 12 on the positioning mold 1, and utilizes the material feeding channel 11 to transport and limit the strip material 200. At the same time, the cutter 2 is longitudinally movably arranged at the knife groove 12, and the cutter 2 is heated by the heating device 4 at the same time, so that the strip material 200 is cut and the materials on both sides of the cut are melted; therefore, the front end of the strip material 200 is bent by the bending device 5 to bond the two molten sides together. During the whole process, cutting and hot melting are carried out simultaneously, and the step of cutting the previous corner protector 201 and the step of bending the next corner protector 201 are also carried out simultaneously. The whole production process is carried out continuously. Therefore, the production time can be shortened, the production efficiency can be improved, and the production cost can be reduced. Moreover, since the three steps of cutting, hot melting and bending are all carried out under the positioning of the positioning mold 1, the strip material 200 is accurately positioned, with few incisions and accurate bonding positions. Therefore, the molding quality of the corner protector 201 is very good and the product is beautiful.

[0043] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A U-shaped corner guard forming machine, characterized in that: It includes a positioning mold, a cutter, a cutter driving device, a heating device, a bending device and a slitting device; the positioning mold is provided with a transversely penetrating material feeding channel and a longitudinally penetrating knife groove; the number of the positioning molds is multiple, and they are arranged in a longitudinal manner; the cutter driving device includes a cutting cylinder and a sliding seat, the cutter is installed on the sliding seat in a longitudinal arrangement, and the output end of the cutting cylinder is connected to the sliding seat to push the sliding seat to move longitudinally, so that the cutter can move longitudinally through the knife groove to cut a slit in the middle of the strip; the heating device is arranged on one side of the cutter to heat the cutter so that the cutter melts the two opposite sides of the slit while cutting the slit; the bending device is arranged on the upper side of the front end of the positioning mold to bend the front end of the strip downward so that the two sides of the slit are bonded; the slitting device is arranged on one side of the bending device to separate the formed corner guard from the strip.

2. The U-shaped corner guard forming machine according to claim 1, characterized in that: A through hole is provided on the upper side of the front end of the positioning die, and the lower pressure head of the bending device can pass through the through hole to press the strip material.

3. The U-shaped corner guard forming machine according to claim 1, characterized in that: The cross sections of the knife groove and the cutting knife are both in an inverted V-shaped structure.

4. The U-shaped corner guard forming machine according to claim 1, characterized in that: The U-shaped corner guard forming machine also includes a feeding device, which feeds the strip material into the feeding channel.

5. The U-shaped corner guard forming machine according to claim 4, characterized in that: The feeding device includes a translation drive mechanism, a bracket, a first cylinder and a positioning needle. The positioning needle is connected to the output end of the first cylinder. The first cylinder is arranged on the bracket to drive the positioning needle to insert into the strip material. The translation drive mechanism drives the bracket to move laterally.

6. The U-shaped corner guard forming machine according to claim 4, characterized in that: The U-shaped corner guard forming machine also includes a pressure roller set, which is arranged on the feeding side of the feeding device to clamp and roll the strip material.

7. The U-shaped corner guard forming machine according to claim 1, characterized in that: The bending device includes a second cylinder and a lower pressure head. The output end of the second cylinder is arranged to be telescopic downward, and the lower pressure head is arranged to be longitudinally arranged and connected to the output end of the second cylinder.

8. The U-shaped corner guard forming machine according to claim 1, characterized in that: The heating device comprises a heating plate, a heating element and a third cylinder. The heating element is arranged on the heating plate. The heating plate is arranged at the output end of the third cylinder. The third cylinder drives the heating plate to approach and contact the cutter.

9. The U-shaped corner guard forming machine according to claim 1, characterized in that: The slitting device comprises a fourth cylinder and a slitting knife. The output end of the fourth cylinder is arranged to be telescopically vertically. The slitting knife is arranged to be longitudinally arranged and connected to the output end of the fourth cylinder to cut the corner guard off from the strip material.

10. The U-shaped corner guard forming machine according to claim 1, characterized in that: The U-shaped corner guard forming machine also includes a pressing mechanism, which is arranged on a side opposite to the slitting device to stabilize the corner guard during slitting.

11. The U-shaped corner guard forming machine according to claim 1, characterized in that: A carrier extending along the material conveying channel is also provided inside the positioning mold, and an accommodating space for accommodating the strip material is provided between the carrier and the positioning mold.

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