Automatic double-end pressing machine

Abstract

The utility model relates to the technical field of umbrella machining equipment, in particular to an automatic double-end pressing machine which comprises a machine frame, two movable frames which are transversely distributed at intervals are arranged above the machine frame, the bottoms of the movable frames are connected with the top of the machine frame through sliding modules, a material conveying base is arranged on the movable frames, and a baffle conveying belt which is horizontally arranged is movably connected to the material conveying base. The feeding direction of the baffle conveying belts is perpendicular to the transverse moving direction of the movable module, a synchronous transmission structure is arranged between the two baffle conveying belts, the baffle conveying belts located on the two movable frames are arranged in an aligned mode and used for erecting a middle rod, the middle rod axially extends to the outer sides of the two baffle conveying belts to the two outer side ends after erecting, and punching devices are arranged on the movable frames. And the moving path of the axial outer side end of the middle rod passes through the stamping station of the stamping device. The feeding device is beneficial for solving the problems that when some existing umbrella middle rods are punched and formed, the automation degree of a feeding mode is insufficient, and consequently transferring in the middle rod punching process wastes time and labor.

Description

Technical Field

[0001] The utility model relates to the technical field of umbrella processing equipment, in particular to an automatic double-head pressing machine for stamping and forming the middle rod of an umbrella rib. Background Art

[0002] An umbrella is a tool for shading or shielding rain and snow. It is generally made of oiled paper, oilcloth, plastic cloth, etc.

[0003] An umbrella generally consists of umbrella ribs and an umbrella cloth. The middle rod is one of the main components of the umbrella ribs. The bottom of the middle rod is connected to the umbrella handle, and the top is connected to the umbrella tail. Since most middle rods are made of metal round tubes, when the umbrella handle and the umbrella tail are made of plastic materials, the two ends of the middle rod are often heated and inserted into the connecting holes of the umbrella handle and the umbrella tail, so that the inner wall of the connecting hole melts and solidifies to form a relatively firm bonding structure. However, in order to further improve the bonding effect, the two ends of the middle rod are often pre-stamped in the joint area, so that the surface of the original round tube structure deforms to have flanges.

[0004] However, at present, most of the stamping of the middle rod still relies on manual operation. The middle rod is sent to the stamping station of the stamping equipment one by one for stamping and forming operations. Since most of the stamping structures at both ends of the middle rod are inconsistent, two independent stamping dies are required. The entire stamping and forming process of each middle rod requires two manual feeding and manual discharging operations. Since the feeding method relies on manual operation and the degree of automation is insufficient, the labor intensity is relatively large and the processing efficiency is relatively low. Content of the Utility Model

[0005] The utility model provides an automatic double-head pressing machine, which is beneficial to solving the problem that the feeding method has insufficient automation during the stamping and forming of the middle rod of some existing umbrellas, resulting in time-consuming and laborious transfer during the stamping process of the middle rod.

[0006] The utility model is implemented as follows:

[0007] The automatic double-head pressing machine includes a frame. Above the frame, there are two movable frames horizontally and spaced apart. The bottom of the movable frame is connected to the top of the frame through a sliding module. A material transporting base is arranged on the movable frame. A horizontally arranged baffle conveyor belt is movably connected to the material transporting base. The feeding direction of the baffle conveyor belt is perpendicular to the transverse movement direction of the movable module. A synchronous transmission structure is arranged between the two baffle conveyor belts. The baffle conveyor belts on the two movable frames are arranged in alignment for supporting the middle rod. After being supported, the two outer ends of the middle rod in the axial direction respectively extend to the outside of the two baffle conveyor belts. A stamping device is arranged on the movable frame. The moving path of the outer end of the middle rod in the axial direction passes through the stamping station of the stamping device.

[0008] On the basis of the above technical solution, adjustable-height feet are arranged at the bottom of the frame.

[0009] On the basis of the above technical solution, an active transverse movement driving member is provided between the two movable frames, and the active transverse movement driving member can control the two transverse movement frames to perform a distance adjustment activity along the sliding module.

[0010] On the basis of the above technical solution, the active transverse movement driving member adopts a lead screw assembly.

[0011] On the basis of the above technical solution, the synchronous transmission structure includes a synchronous shaft with a polygonal cross-sectional profile. One end of the synchronous shaft is connected to the transmission structure of one side baffle conveyor belt through a universal joint, and the other end is an adjustment end. The adjustment end is connected to the transmission structure of the other side baffle conveyor belt through a sliding bushing. The sliding bushing can axially displace relative to the adjustment end. An axial rotation constraint structure is formed between the radially inner end of the sliding bushing and the synchronous shaft, and the radially outer end of the sliding bushing is fixedly connected to the transmission structure of the baffle conveyor belt.

[0012] On the basis of the above technical solution, walking wheels are provided at the bottom of the frame.

[0013] On the basis of the above technical solution, a bearing platform is provided between the bottom of the stamping device and the top bracket of the frame. The stamping device includes a static die provided on the bearing platform and a dynamic die provided on the punch head. A stamping station is formed between the static die and the dynamic die, and the stamping device can control the dynamic die to perform a longitudinal stamping action relative to the static die at the stamping station.

[0014] On the basis of the above technical solution, a constraint groove is provided on the dynamic die and / or the static die, and the constraint groove can form a deviation correction structure for the middle rod during stamping.

[0015] Compared with the prior art, the present utility model has at least the following advantages:

[0016] 1. By providing a group of spaced baffle conveyor belts on the frame to carry and transport the stamped middle rods, the present utility model replaces the existing non-targeted feeding structure that relies solely on manual operation, improves the degree of material transportation automation, reduces the manual participation, and then cooperates with the stamping device that operates stably and synchronously, resulting in a significant improvement in processing efficiency and greatly reducing the pulling intensity of workers.

[0017] 2. By providing movable frames with adjustable spacing, the baffle conveyor belts and the stamping device are arranged on the movable frames, so as to be able to adapt to the stamping forming operation requirements of middle rods of various different lengths, making the equipment highly adaptable, the structure flexible, and the application market wide, which is conducive to improving the market competitiveness of the equipment. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the embodiments. It should be understood that the following attached drawings only show certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related attached drawings can also be obtained based on these attached drawings.

[0019] Figure 1 Schematic diagram of the three-dimensional structure of the automatic double-head press in an embodiment;

[0020] Figure 2 For Figure 1 side view of

[0021] Figure 3 Schematic diagram of the top view structure of the automatic double-head press;

[0022] Figure 4 Schematic diagram of the structure of the sliding bushing;

[0023] Figure 5 Schematic diagram of the structures of the first mold and the second mold in an embodiment;

[0024] Figure 6 Schematic diagram of the structures of the third mold and the fourth mold in an embodiment;

[0025] Figure 7 For Figure 6 three-dimensional structure schematic diagram of the third mold in

[0026] Labels in the figure: 1, frame; 2, sliding module; 3, movable frame; 4, bearing table; 5, stamping device; 51, first mold; 52, second mold; 53, third mold; 54, fourth mold; 55, convex teeth; 6, material conveying base; 61, baffle conveyor belt; 7, synchronous shaft; 71, universal joint; 72, adjustment end; 73, sliding bushing; 8, lead screw assembly; a, constraint groove. Detailed implementation manners

[0027] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the attached drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model.

[0028] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0029] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to an element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation manner.

[0030] The present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Embodiment 1: In combination with Figures 1-5 , this embodiment discloses an automatic double-end pressing machine, which is used for continuously and automatically conveying medium rods and performing step-by-step periodic stamping operations, so that the stamping forming at both axial ends of the medium rods can be efficiently and quickly completed by using a mechanical automation structure.

[0032] Specifically, in combination with Figures 1 to 3 , the automatic double-end pressing machine includes a frame 1, a sliding module 2, a movable member, a bearing table 4, a stamping device 5, a material conveying base 6, a baffle conveyor belt 61, a synchronous shaft 7 and a lead screw assembly 8.

[0033] The frame 1 is welded by aluminum alloy profiles and is coated with a protective paint on the surface, mainly playing a role of bearing and supporting.

[0034] The bottom of the frame 1 is provided with feet with adjustable heights, which are used to control the assembly height of the equipment and the leveling correction.

[0035] The bottom of the frame 1 is also provided with traveling wheels, which facilitate the pushing and pulling movement of the equipment and convenient for displacement transportation. When the equipment is static, the traveling wheels are lifted by the feet or the traveling wheels are braked and locked. When the equipment needs to move, the length of the feet is shortened, so that the traveling wheels support the whole frame 1, and the braking is released to facilitate the displacement operation of the equipment.

[0036] As shown in Figure 2As shown in the figure, there are two movable frames 3 horizontally spaced above the frame 1. The bottom of the movable frame 3 is connected to the top of the frame 1 through a sliding module 2. The sliding module 2 includes a guide rail and a slider. In this embodiment, the moving direction of the sliding module 2 is defined as the left - right direction. That is to say, the movable frame 3 can slide left and right relative to the frame 1 with the help of the sliding module 2.

[0037] Furthermore, an active transverse movement driving member is provided between the two movable frames 3. This active transverse movement driving member can control the two transverse movement frames to adjust the distance along the sliding module 2. In this embodiment, the movable frame 3 on the right side is used as a static structure and remains stationary. The active transverse movement driving member drives the movable frame 3 on the left side to move left and right relative to the movable frame 3 on the right side, thus realizing the distance adjustment activity.

[0038] The active transverse movement driving member adopts a lead screw assembly 8. The lead screw assembly 8 includes a motor, a T - shaped screw and a nut. It is prior art, and its specific structure and working principle will not be elaborated here. Those skilled in the art can select and implement it from the prior art according to the actual operation situation.

[0039] A material transporting base 6 is provided on the movable frame 3. A horizontally arranged baffle conveyor belt 61 is movably connected to the material transporting base 6. A synchronous transmission structure is provided between the two baffle conveyor belts 61. The baffle conveyor belts 61 on the two movable frames 3 are arranged in alignment for erecting the middle rod. After erection, the two outer ends of the middle rod in the axial direction extend to the outside of the two baffle conveyor belts 61 respectively. A stamping device 5 is provided on the movable frame 3. The moving path of the outer end of the middle rod in the axial direction passes through the stamping station of the stamping device 5.

[0040] Specifically, the upper and lower ends of the baffle conveyor belt 61 are in a horizontal state. The upper end is used as the feeding area, and the gap between adjacent baffles is used as the feeding gap. The size of the feeding gap is adapted to the diameter of the middle rod. The middle rod can be placed on the baffle conveyor belt 61 one by one by manual or external feeding devices. The baffle conveyor belt 61 is connected to a stepping motor through a transmission structure such as a pulley and can transport materials stably one by one. By setting a group of spaced baffle conveyor belts 61 on the frame 1 to carry and transport the stamped middle rods, this replaces the existing non - targeted feeding structure that can only rely on manual operation, improves the automation degree of material transportation, reduces the manual participation, and then cooperates with the stamping device 5 that operates stably and synchronously, resulting in a significant improvement in processing efficiency and greatly reducing the pulling intensity of workers.

[0041] It should be noted that the feeding direction of the baffle conveyor belt 61 is perpendicular to the transverse movement direction of the movable module, which makes the distance adjustment activity between the two frames not affect the normal transportation activity of the baffle conveyor belt 61.

[0042] Combined with Figures 1-4, the synchronous transmission structure includes a synchronous shaft 7 with a polygonal cross-sectional profile. In this embodiment, the cross-sectional profile of the synchronous shaft 7 is a hexagonal structure. The left end of the synchronous shaft 7 is connected to the transmission structure of a side baffle conveyor belt 61 through a universal joint 71. In the figure, the universal joint 71 is located at one end on the left side of the synchronous shaft 7. The left baffle conveyor belt 61 is connected to a stepper motor through a pulley. The right end of the synchronous shaft 7 is an adjustment end 72, which is essentially a free-end structure. The adjustment end 72 is connected to the transmission structure of the right baffle conveyor belt 61 through a sliding bushing 73. The sliding bushing 73 can axially displace relative to the adjustment end 72. Therefore, when the lead screw assembly 8 controls the left movable frame 3 and the baffle conveyor belt 61 on its top to slide left and right, the synchronous shaft 7 and the baffle conveyor belt 61 on the right movable frame 3 can always maintain a connection relationship. To maintain the synchronization effect, an axial rotation constraint structure is formed between the radially inner end of the sliding bushing 73 and the synchronous shaft 7, that is, the inner hole of the sliding bushing 73 is a hexagonal structure adapted to the outer contour of the synchronous shaft 7. When the synchronous shaft 7 rotates around its axial center line on the left side, the sliding bushing 73 can always follow the rotation. The radially outer end of the sliding bushing 73 is fixedly connected to the transmission structure of the baffle conveyor belt 61, thereby realizing that the baffle conveyor belts 61 on the left and right sides can maintain synchronous feeding actions.

[0043] In this way, by setting the movable frame 3 with adjustable spacing, the baffle conveyor belt 61 and the stamping device 5 are arranged on the movable frame 3, so that it can adapt to the stamping and forming operation requirements of various different lengths of middle rods, making the equipment highly adaptable, with a flexible structure and a wide application market, which is conducive to improving the market competitiveness of the equipment.

[0044] Combined with Figure 5 , a bearing platform 4 is provided between the bottom of the stamping device 5 and the top bracket of the frame 1. The stamping device 5 includes a static mold arranged on the bearing platform 4 and a dynamic mold arranged on the punch head. A stamping station is formed between the static mold and the dynamic mold. The stamping device 5 can control the dynamic mold to perform a longitudinal stamping action relative to the static mold at the stamping station. In this embodiment, the static mold is a first mold 51 with a longitudinal profile of "one" shape, and the dynamic mold is a second mold 52 with a longitudinal profile of "L" shape. After the two are brought closer to clamp and stamp the middle rod, it can produce an indentation and form a certain degree of deformation, so that the outer contour of the middle rod at this position "breaks the circle" to achieve the stamping and forming effect.

[0045] Embodiment 2: On the basis of Embodiment 1, combined with Figure 6 and Figure 7, constraint grooves a are provided on the dynamic die and the static die, and the constraint grooves a can form a deviation rectifying structure for the middle rod during stamping. Specifically, in this embodiment, the static die is the third die 53, the dynamic die is the fourth die 54, convex teeth 55 are provided on the adjacent sides of the third die 53 and the fourth die 54, and a "V"-shaped groove is formed in the middle of the convex teeth 55. The "V"-shaped grooves on the third die 53 and the fourth die 54 are spliced into a square cavity after being combined. This enables the outer contour of the middle rod at this position to be stamped into a square tube after stamping the middle rod with the third die 53 and the fourth die 54. During stamping, the "V"-shaped groove can also serve as the constraint groove a to prevent the middle rod from running off and being misaligned during stamping, which can improve the stability of the stamping quality.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Automatic double-head pressing machine, characterized in that: The invention comprises a frame (1), two movable frames (3) are arranged above the frame (1) and are arranged at intervals in the transverse direction, the bottom of the movable frame (3) is connected to the top of the frame (1) via a sliding module (2), a material transport base (6) is arranged on the movable frame (3), a horizontally arranged baffle conveyor belt (61) is movably connected to the material transport base (6), the feeding direction of the baffle conveyor belt (61) is perpendicular to the transverse movement direction of the movable module, a synchronous transmission structure is arranged between the two baffle conveyor belts (61), the baffle conveyor belts (61) located on the two movable frames (3) are arranged in an aligned manner and are used for mounting a middle rod, and after mounting, the axial two outer ends of the middle rod respectively extend to the outside of the two baffle conveyor belts (61), a stamping device (5) is arranged on the movable frame (3), and the moving path of the axial outer end of the middle rod passes through the stamping station of the stamping device (5).

2. The automatic double-head pressing machine according to claim 1, characterized in that: The bottom of the frame (1) is provided with a height-adjustable support foot.

3. The automatic double-head pressing machine according to claim 1, characterized in that: An active transverse driving component is provided between the two movable frames (3), and the active transverse driving component can control the two transverse frames to perform spacing adjustment activities along the sliding module (2).

4. The automatic double-head pressing machine according to claim 3, characterized in that: The active transverse driving member adopts a screw assembly (8).

5. The automatic double-head pressing machine according to claim 4, characterized in that: The synchronous transmission structure comprises a synchronous shaft (7) having a polygonal cross-sectional profile, one end of the synchronous shaft (7) being connected to the transmission structure of a baffle conveyor belt (61) on one side via a universal joint (71), and the other end being an adjustment end (72), the adjustment end (72) being connected to the transmission structure of the baffle conveyor belt (61) on the other side via a sliding bushing (73), the sliding bushing (73) being capable of axial displacement relative to the adjustment end (72), an axial rotation restraining structure being formed between the radial inner end of the sliding bushing (73) and the synchronous shaft (7), and the radial outer end of the sliding bushing (73) being connected and fixed to the transmission structure of the baffle conveyor belt (61).

6. The automatic double-head pressing machine according to claim 2, characterized in that: The bottom of the frame (1) is provided with running wheels.

7. The automatic double-head pressing machine according to claim 1, characterized in that: A bearing platform (4) is provided at the bottom of the punching device (5) and the top bracket of the frame (1); the punching device (5) comprises a static die arranged on the bearing platform (4) and a dynamic die arranged on the punch head; a punching station is formed between the static die and the dynamic die; the punching device (5) can control the dynamic die to perform a longitudinal punching action relative to the static die at the punching station.

8. The automatic double-head pressing machine according to claim 7, characterized in that: The dynamic die and / or the static die is provided with a restraining groove (a), and the restraining groove (a) can form a deviation-correcting structure for the middle rod during stamping.

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