Double-station bending machine for sheet metal

Abstract

The utility model relates to the technical field of bending machine, especially a double station bending machine for metal plate, including the rack that is composed of the upper machine body and lower machine body of longitudinal interval arrangement, the hydraulic device that is located on the lower machine body, at least two groups of moulds and the unloading device that is located between the mould, the utility model discloses the unloading device includes the pusher portion that can reciprocating activity and is used for the drive structure group that controls pusher portion reciprocating removal, and pusher portion can push the workpiece on the lower mould away when reciprocating, the utility model discloses an unloading device is added on the bending machine and can assist the worker to unload to improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, and in particular to a dual-station bending machine for metal plates. Background Technology

[0002] A bending machine (or pressure bending machine) is a press that uses mechanical or hydraulic operation to bend metal sheets, and is therefore often used in the processing of copper door panels.

[0003] Currently, when bending machines are in operation, both loading and unloading (unloading) require manual operation by workers. Loading requires adjusting the position of the sheet metal, so workers need to manually place and adjust it. After the sheet metal is bent, workers also need to remove the sheet metal from the mold and then place a new sheet metal. This process requires removing the workpiece and reloading, requiring workers to complete two actions, so there is still room for improvement. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a dual-station bending machine for metal plates, which aims to solve the problems mentioned in the background technology.

[0005] The technical solution of this utility model is implemented as follows: A dual-station bending machine for metal plates, comprising: The frame consists of an upper body and a lower body arranged longitudinally at intervals. A hydraulic device is located on the lower body and is used to control the upper body to move closer to or further away from the lower body; At least two sets of molds, each set of molds consisting of an upper mold and a lower mold respectively installed on the upper body and the lower body; the present invention also includes a material unloading device disposed between the molds; the material unloading device consists of a reciprocating pusher and a drive structure for controlling the reciprocating movement of the pusher; The pusher section can push the workpiece off the lower die when it reciprocates.

[0006] Preferably, the driving structure includes: Two first slide rails are installed on the lower body and spaced apart; Two first sliders are slidably connected to each first slide rail; Each first slider is fixedly connected to a first rack, and a first gear that meshes with each first rack is rotatably connected to the lower body; any first slider can be controlled by a first driver to reciprocate on a first slide rail, and each first slide rail is equipped with the pusher part.

[0007] Preferably, the machine body is further provided with a housing, the drive structure is located inside the housing, and the housing has an opening for the pusher section to pass through and move.

[0008] Preferably, the unloading device further includes a material guiding structure hinged to the lower body, and the material guiding structure can be controlled by the support structure to maintain an inclined position; In an inclined position, the material guiding structure forms an inclined material guiding path on any side of the lower body.

[0009] Preferably, the material guiding structure includes: The guide plate is hinged to the lower body and is located on the side of the lower body away from the pusher section; Two side plates are fixedly connected to the guide plate at intervals; The support structure is installed on the lower body and is used to control the rotation of the guide plate at the hinge. The material guiding path is formed between the guide plate and the side plate.

[0010] Preferably, the support structure includes: Two second slide rails are installed on the lower body and spaced apart; Two second sliders are slidably connected to each of the second slide rails; The support rod is fixedly connected to each of the second sliders, and one end is used to support the guide plate; Each second slider is fixedly connected to a second rack, and a second gear that meshes with each second rack is rotatably connected to the lower body; any second slider can be controlled by a second driver to move on a second slide rail.

[0011] Preferably, the guide plate has a recessed groove on the side near the support rod, and the groove has recessed sliding grooves on both sides of the groove wall; The support rod has a telescopic shaft at one end, which consists of at least one outer shaft and at least two inner shafts. Each inner shaft can slide relative to the outer shaft in the axial direction, and the free end of each inner shaft can slide in the groove.

[0012] Preferably, both ends of the outer shaft are recessed to provide inner cavities for the inner shaft to slide, and the outer shaft is provided with two limiting threaded holes that communicate with each inner cavity, and the limiting threaded holes are threadedly connected to limiting bolts.

[0013] This utility model has at least the following beneficial effects: 1. This utility model adds a material unloading device to the existing bending machine. The material unloading device can help workers unload materials. With the assistance of the material unloading device of this utility model, workers only need to complete the loading work, and the unloading can be completely handed over to the material unloading device.

[0014] 2. The unloading device of this utility model is compatible with a dual-station bending machine, and can simultaneously push the workpieces on each station (that is, each lower die) away from the lower die to complete the unloading.

[0015] 3. In order to assist the workpiece from falling, the unloading device of this utility model is also equipped with a material guiding structure. The material guiding structure can guide the workpiece to move to the material frame placed on one side of the machine body when it falls, thereby assisting in the collection of the workpiece. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a specific embodiment 1 of the present utility model; Figure 2 for Figure 1 AA section view in the middle; Figure 3 for Figure 2 BB section view in the middle; Figure 4 for Figure 3 CC section view in the middle; Figure 5 This is a schematic diagram of the structure of a specific embodiment 2 of the present utility model; Figure 6 for Figure 5 DD section view in the middle; Figure 7 This is a schematic diagram of the material guiding structure in specific embodiment 2 of this utility model; Figure 8 This is a schematic diagram of the telescopic shaft in specific embodiment 2 of this utility model; Figure 9 This is a cross-sectional view of the telescopic shaft in specific embodiment 2 of this utility model; Figure 10 for Figure 6 Enlarged view of part A in the image. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: like Figures 1-4As shown, this utility model discloses a dual-station bending machine for metal sheets, comprising: The frame consists of an upper body 10 and a lower body 11 arranged longitudinally at intervals. The lower body 11 has a back 110, and two longitudinal slide rails 111 are fixedly installed on the back 110. The upper body 10 is slidably connected to the longitudinal slide rails 111. The hydraulic device 20 is located on the lower body 11 and is used to control the upper body 10 to move closer to or further away from the lower body 11. In this embodiment, the hydraulic device 20 consists of two hydraulic cylinders. The hydraulic cylinders are controlled by the hydraulic system to feed and discharge oil (this is prior art and will not be described in detail in this embodiment). In other words, the hydraulic cylinders control the upper body 10 to perform lifting and lowering movements. Two sets of molds, each set of molds consists of an upper mold 31 and a lower mold 32 respectively installed on the upper body 10 and the lower body 11. The lower mold 32 has a punching groove 320, which is adapted to the upper mold. When bending the punching mold, the metal plate is placed on the lower mold, and the metal plate is bent as the upper mold descends and enters the punching groove.

[0020] This embodiment also includes a material unloading device 4 disposed between the molds; the material unloading device 4 consists of a reciprocating pusher and a drive structure for controlling the reciprocating movement of the pusher; the pusher can push the workpiece off the lower mold 32 when it reciprocates.

[0021] In this embodiment, the workpiece is a bent metal sheet.

[0022] In this embodiment, the unloading device includes a housing 40, which is mounted on the lower body 11 and located between two sets of molds. The housing 40 also has an active opening 41 for the pusher to pass through and move. The active opening 41 has two punch slots 320 facing each lower mold 32 respectively. The drive structure is located inside the housing 40.

[0023] In this embodiment, the driving structure includes: Two first slide rails 42 are installed on the chassis 40 of the lower body 11 and are spaced apart. The first slide rails 42 are respectively installed on the upper inner wall and the lower inner wall of the chassis 40. Two first sliders 43 are slidably connected to each first slide rail 42; Each first slider 43 is fixedly connected to a first rack 44, and a first gear 45 that meshes with each first rack 44 is rotatably connected to the lower body 11; any first slider 43 can be controlled by the first driver 46 to move back and forth on the first slide rail 42, and each first slide rail 42 is equipped with the pusher part 47, which is a pusher rod fixed to the first slider 43, and one end of the pusher plate can pass through the movable opening of the housing 40.

[0024] In this embodiment, the first actuator 46 is a cylinder.

[0025] refer to Figures 1-4 The principle of this embodiment is: During bending, the worker places the metal sheet on the lower die, and then the hydraulic cylinder controls the lower body to descend and uses the upper die (also called the upper die head) to bend the metal sheet. After bending is completed, the cylinder, which acts as the first driver, controls the movement of the first slider and uses the cooperation of the first rack and the first gear to control the movement of another first slider. Then, the first slider drives the push rod to move, and the push rod pushes the workpiece in the punching groove from the other side to complete the unloading.

[0026] It should be noted that during production, material frames need to be placed on both sides of the lower machine body to collect the falling workpieces. Workers only need to load the materials, and unloading can be done through the unloading device.

[0027] Example 2 differs from Example 1 in that: like Figures 5-10 As shown, in this embodiment, the unloading device also includes a material guiding structure hinged to the lower body. The housing 40 of this embodiment has two longitudinally distributed cavities. The driving structure is located in the upper cavity, while the support structure is located in the lower cavity.

[0028] In this embodiment, the material guiding structure can be controlled by the support structure to maintain an inclined posture, which means that the material guiding structure is in an inclined state. In an inclined position, the material guiding structure forms an inclined material guiding path on any side of the lower body.

[0029] The material guiding structure in this embodiment includes: The guide plate 60 is hinged to the lower body 11 and is located on the side of the lower body 11 away from the pusher part 47; Two side plates 61 are fixedly connected to the guide plate 60 at intervals; The support structure is installed on the lower body 11 and is used to control the rotation of the guide plate 60 at the hinge. The material guiding path is formed between the guide plate 60 and the side plate 61.

[0030] In this embodiment, two hinge seats 62 are fixedly connected to the lower body 11, and two side plates 61 are hinged to the hinge seats 62 through shafts 63. The guide plate 60 is fixedly connected between the side plates 61. That is to say, in this embodiment, the guide plate 60 is hinged to the hinge seats 62 through the side plates 61.

[0031] In this embodiment: the support structure includes: Two second slide rails 70 are installed inside the chassis 40 of the lower unit and are spaced apart; Two second sliders 71 are slidably connected to each of the second slide rails 70; The support rod 72 is fixedly connected to each of the second sliders 71, and one end is used to support the guide plate 60. One end of the support rod 72 passes through the lower body and cooperates with the guide plate 60. Each second slider 71 is fixedly connected to a second rack 73, and a second gear 74 that meshes with each second rack 73 is rotatably connected to the housing 40 of the lower body; any second slider 71 can be controlled by the second driver 75 to move on the second slide rail 70.

[0032] In this embodiment, the second actuator 75 is a hydraulic cylinder.

[0033] In this embodiment: the guide plate 60 is recessed on one side near the support rod with a groove 80, and the groove 80 is recessed on both sides of the groove wall with a sliding groove 81; One end of the support rod 72 is provided with a telescopic shaft 9, which consists of an outer shaft 90 and two inner shafts 91. Each inner shaft 91 can slide relative to the outer shaft 90 in the axial direction, and the free end of each inner shaft 91 can slide in the slide groove 81.

[0034] In this embodiment: both ends of the outer shaft 90 are recessed to provide inner cavities 93 for the inner shaft 91 to slide, and the outer shaft 90 is provided with two limiting threaded holes 94 that communicate with each inner cavity 93. The limiting threaded holes 94 are threadedly connected to limiting bolts 95. One end of the limiting bolt 95 abuts against the inner shaft to restrict the movement of the inner shaft.

[0035] refer to Figures 5-10 The unloading device in this embodiment also includes a guide structure and a support structure for controlling the guide structure on both sides of the lower body. During production, the guide plate can be supported by the extended support rod and form an inclined guide path on both sides of the lower body. When the push rod pushes the workpiece away from the lower mold, the workpiece falls onto the guide plate and enters the material frame through the guide plate. In this embodiment, the guide plate can slow down the falling speed of the workpiece and avoid damage to the workpiece. After production is completed, the guide plate can be lowered by controlling the support rod.

[0036] The support structure in this embodiment is the same as the drive structure in Embodiment 1 in terms of structure and principle. The difference is that a telescopic shaft is provided at the end of the support rod in this embodiment. The support rod and the guide plate are connected through the telescopic shaft. The free end of the support rod is fixedly connected to the outer shaft in this embodiment. The length of the outer shaft is adapted to the width of the groove. That is to say, the outer shaft can enter the groove when placed horizontally. By adjusting the length of the inner shaft moving out of the outer shaft, the guide plate can be made to cooperate with the telescopic shaft in this embodiment. Alternatively, the telescopic shaft can be disengaged from the guide plate by inserting the inner shaft into the outer shaft. Therefore, it is convenient to clean the back of the guide plate.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-station bending machine for metal sheets, comprising: The frame consists of an upper body (10) and a lower body (11) arranged longitudinally at intervals; A hydraulic device (20) is provided on the lower body (11) and is used to control the upper body (10) to move closer to or away from the lower body (11). At least two sets of molds, each set of molds consists of an upper mold (31) and a lower mold (32) respectively installed on the upper body (10) and the lower body (11); characterized in that: it also includes a material unloading device (4) disposed between the molds; the material unloading device (4) consists of a reciprocating pusher (47) and a drive structure for controlling the reciprocating movement of the pusher (47); The pusher (47) can push the workpiece off the lower die (32) when it reciprocates.

2. The dual-station bending machine for metal sheets according to claim 1, characterized in that: The driving structure includes: Two first slide rails (42) are installed on the lower body (11) and spaced apart; Two first sliders (43) are slidably connected to each first slide rail (42); Each of the first sliders (43) is fixedly connected to a first rack (44), and a first gear (45) that meshes with each of the first racks (44) is rotatably connected to the lower body (11); any of the first sliders (43) can be controlled by the first driver (46) to move back and forth on the first slide rail (42), and each of the first slide rails (42) is equipped with the pusher part (47).

3. A dual-station bending machine for metal sheets according to claim 2, characterized in that: The machine body is also provided with a housing (40), the drive structure is located inside the housing (40), and the housing (40) has an opening (41) through which the pusher part (47) passes and moves.

4. A dual-station bending machine for metal sheets according to claim 2 or 3, characterized in that: The unloading device (4) also includes a material guiding structure hinged to the lower body (11), and the material guiding structure can be controlled by the support structure to maintain an inclined position; In the tilted position, the material guiding structure forms an inclined material guiding path on any side of the lower body (11).

5. A dual-station bending machine for metal sheets according to claim 4, characterized in that: The material guiding structure includes: The guide plate (60) is hinged to the lower body (11) and located on the side of the lower body (11) away from the pusher (47); Two side plates (61) are fixedly connected to the guide plate (60) at intervals; The support structure is installed on the lower body (11) and is used to control the guide plate (60) to rotate at the hinge. The material guiding path is formed between the guide plate (60) and the side plate (61).

6. A dual-station bending machine for metal sheets according to claim 5, characterized in that: The support structure includes: Two second slide rails (70) are installed on the lower body (11) and spaced apart; Two second sliders (71) are slidably connected to each of the second slide rails (70); The support rod (72) is fixedly connected to each of the second sliders (71), and one end is used to support the guide plate (60). Each second slider (71) is fixedly connected to a second rack (73), and a second gear (74) that meshes with each second rack (73) is rotatably connected to the lower body (11); any second slider (71) can be controlled by the second driver (75) to move on the second slide rail (70).

7. A dual-station bending machine for metal sheets according to claim 6, characterized in that: The guide plate (60) has a recessed groove (80) on one side near the support rod (72), and the groove (80) has recessed sliding grooves (81) on both sides of the groove wall. One end of the support rod (72) is provided with a telescopic shaft (9), which is composed of at least one outer shaft (90) and at least two inner shafts (91). Each inner shaft (91) can slide relative to the outer shaft (90) in the axial direction, and the free end of each inner shaft (91) can slide in the groove (81).

8. A dual-station bending machine for metal sheets according to claim 7, characterized in that: Both ends of the outer shaft (90) are recessed to provide inner cavities (93) for the inner shaft (91) to slide, and two limiting threaded holes (94) communicating with each inner cavity (93) are provided on the outer shaft (90), and the limiting threaded holes (94) are threadedly connected to limiting bolts (95).

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