Pneumatic umbrella point press

Abstract

This utility model discloses a pneumatic umbrella head stamping machine, including a base, a base plate on the base, a vertical back plate connected to the rear top of the base plate, a detachable support seat on the front side of the base plate, a lower die detachably mounted on the top of the support seat, a cylinder mounted on the back plate above the support seat, a vertically downward-pointing extension rod of the cylinder connected to a punch, and an upper die mounted at the bottom of the punch; a guide hole is provided on the back plate directly behind the punch, the guide hole being a vertical strip-shaped through hole, a horizontally positioned guide rod movably connected within the guide hole, the front end of the guide rod connected to the rear side of the punch, and a bonding plate connected to the rear end of the guide rod, with an elastic bonding structure between the bonding plate and the rear side wall of the back plate. This utility model helps to solve the problem that some current umbrella head stamping devices do not have a suitable guiding structure when configuring the pointed die, which easily leads to stamping deformation and defective products due to axial deflection of the center rod during stamping.

Description

Technical Field

[0001] This utility model relates to the field of umbrella processing equipment, and in particular to a pneumatic umbrella head pressing machine. Background Technology

[0002] An umbrella is a tool for providing shade or protection from rain and snow, typically made of oiled paper, oilcloth, or plastic. An umbrella consists of a handle, ribs, and canopy. The core structure of the ribs is the central pole, which is usually made of metal to enhance structural strength. For a comfortable grip, the handle is typically made of plastic. The bottom of the central pole connects to the handle after assembly.

[0003] To ensure a tighter and more secure connection between the plastic handle and the center rod of the umbrella body, stamping equipment is needed to shape the connecting end of the center rod to match the connection structure of the umbrella handle. Some center rod connecting ends are flattened into rectangles by block-shaped misalignment molds, while others are stamped with multiple dot-shaped grooves by pointed molds. Because the center rod has a cylindrical structure, and existing punches are simply mounted at the end of the cylinder telescopic rod, the upper die connected to the punch often has a guide structure. During stamping, slight wobbling of the upper die during downward stamping can cause the center rod to rotate axially upon contact, affecting the stamping effect. This phenomenon is more pronounced in dot-shaped stamping processes, where axial deflection of the center rod can easily lead to stamping deformation and defective products. Utility Model Content

[0004] This utility model provides a pneumatic umbrella head pressing machine, which helps to solve the problem that some current umbrella head stamping devices do not have a suitable guiding structure when configuring the pointed mold, and the stamping process is prone to deformation due to axial deflection of the central rod, resulting in defective products.

[0005] This utility model is implemented as follows: A pneumatic umbrella head pressing machine includes a base with a base plate on it. A vertical back plate is connected to the rear top of the base plate. A support seat is detachably mounted on the front side of the base plate to the back plate. A lower die is detachably mounted on the top of the support seat. The top of the lower die has an upward-protruding pointed head. A positioning groove adapted to the outer contour of the center rod is provided on one side of the pointed head. A cylinder is mounted on the back plate above the support seat. The telescopic rod of the cylinder is vertically downward and connected to a punch. An upper die is mounted at the bottom of the punch. After the upper die follows the punch downward, it forms a longitudinal double-sided pressing structure with the lower die. A guide hole is provided on the back plate directly behind the punch. The guide hole is a vertical strip-shaped through hole. A horizontally mounted guide rod is movably connected in the guide hole. The front end of the guide rod is connected to the rear side of the punch. The rear end of the guide rod is connected to a bonding plate. An elastic bonding structure is provided between the bonding plate and the rear side wall of the back plate.

[0006] Based on the above technical solution, the base plate is provided with a positioning block on one side of the support seat. The top of the positioning block is flush with the top of the lower mold, and the top of the positioning block is provided with a tooling groove structure that adapts to the outer contour of the middle rod.

[0007] Based on the above technical solution, a positioning baffle is provided on the side of the base plate away from the positioning block, and the positioning baffle forms a lateral positioning structure after the middle bar stamping fixture.

[0008] Based on the above technical solution, an installation position adjustment structure is provided between the positioning block, the positioning baffle and the base plate.

[0009] Based on the above technical solution, a mounting plate is provided between the cylinder and the back plate, and a longitudinal position adjustment structure is provided between the mounting plate and the back plate.

[0010] Based on the above technical solution, a connecting groove is provided at the center of the front side of the bonding plate, and the connecting groove is used to connect the rear end of the guide rod.

[0011] Based on the above technical solution, the bonding plate is provided with sink grooves on the left and right sides of the connecting groove, and an inner pad is movably connected in the sink groove. A spring is provided between the inner pad and the bottom of the sink groove, and the outer side of the inner pad can provide an elastic bonding force to the rear side wall of the back plate.

[0012] Based on the above technical solution, a number of evenly distributed ball bearings are provided between the front side of the inner pad block and the rear side wall of the back plate.

[0013] Based on the above technical solution, the inner pad block is provided with a spherical groove on the front side, the ball is movably installed in the spherical groove, and a cover plate is also connected to the front side of the inner pad block, with an opening on the cover plate for the front end of the ball to be exposed.

[0014] Compared with the prior art, the present invention has at least the following advantages: This invention improves the tooling stability of the central rod during umbrella head pressing by setting a positioning groove on the lower die that adapts to the outer contour of the central rod. Furthermore, the invention includes a guide rod and guide hole between the punch and the back plate. Since the rear end of the guide rod has a fitting plate that can elastically slide against the rear side wall of the back plate, the positioning accuracy of the workpiece and the stamped part is optimized during umbrella head pressing. During stamping, the upper die can accurately cooperate with the lower die to apply uniform pressure to the central rod, avoiding axial rotation of the central rod due to upper die wobbling. This effectively prevents stamping deformation and improves stamping quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the front structure of the pneumatic umbrella head pressing machine in one embodiment; Figure 2 for Figure 1 Schematic diagram of the structure of the central support; Figure 3 This is a partial schematic diagram of the punch guide structure in one embodiment; Figure 4 This is a partial structural diagram of the backplate in one embodiment; Figure 5 for Figure 3 Schematic diagram of the middle bonding panel; Figure 6 for Figure 5 A partial sectional view.

[0017] The diagram is labeled as follows: 100, base; 110, bottom plate; 120, back plate; 121, control panel; 122, adjustment hole; 123, guide hole; 130, mounting plate; 200, support seat; 210, mounting groove; 220, lower mold; 221, pointed head; 222, positioning groove; 300, cylinder; 310, punch; 320, upper mold; 330, guide rod; 340, bonding plate; 341, connecting groove; 342, countersunk groove; 343, inner pad block; 3431, spherical groove; 344, spring; 345, ball bearing; 346, cover plate; 400, positioning block; 500, positioning baffle. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0019] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Combination Figures 1 to 6 This embodiment discloses a pneumatic umbrella head stamping machine, aiming to solve the problem that some current umbrella head stamping devices lack suitable guiding structures when configuring the pointed die, leading to stamping deformation and defective products due to axial deflection of the center rod during stamping. By designing a reasonable structure and guiding device, the stability of the center rod is ensured during the stamping process, improving stamping quality and production efficiency, and reducing production costs.

[0023] Specifically, such as Figure 1 As shown, the pneumatic umbrella head pressing machine in this embodiment includes a base 100, which is a horizontally arranged metal plate. In use, the bottom of the base 100 is placed on a workbench. The bottom of the base 100 can be equipped with anti-slip pads or support feet to increase friction with the ground and prevent the equipment from moving during operation.

[0024] A base plate 110 is provided on the base 100. The base plate 110 is also a horizontally arranged metal plate. The base plate 110 is connected to the base 100 by several bolts. This split structure is conducive to subsequent maintenance and replacement.

[0025] A vertical back plate 120 is connected to the rear top of the base plate 110. The back plate 120 and the rear end of the base plate 110 are fixed by welding to form an integral structure. A control panel 121 is provided on the back plate 120. The control panel 121 contains a controller, specifically a microcontroller. The controller is also connected to a foot switch for controlling the start and stop of the cylinder 300. In other embodiments, the controller may use other control elements. The control panel 121 is mainly used by the operator to view and adjust the operating parameters. The controller is electrically connected to the stamping drive component. This is prior art, and its specific structure and working principle will not be described in detail here. Those skilled in the art can select and implement it from the prior art according to the actual operating conditions.

[0026] Combination Figure 1 and Figure 4 The back plate 120 is provided with two adjustment holes 122. The adjustment holes 122 are longitudinal strip-shaped through holes that extend through the back plate 120 from front to back. The adjustment holes 122 are used to connect the mounting plate 130 with bolts, which allows the mounting height of the mounting plate 130 to be flexibly adjusted to adapt to different stamping strokes.

[0027] The base plate 110 is detachably mounted on the front side of the back plate 120 via a bolt assembly, and a support 200 is provided. The support 200 can be replaced or adjusted according to different production needs to accommodate different specifications of center bars and stamping dies. A lower die 220 is detachably mounted on the top of the support 200 via a bolt assembly, such as... Figure 2 As shown, the support 200 has a left-right oriented mounting groove 210. The lower mold 220 is installed in the mounting groove 210 by countersunk bolts. It should be noted that the mounting groove 210 has multiple threaded holes spaced left-right to facilitate adjustment of the lower mold 220's position on the support 200. One end of the lower mold 220 has an upwardly protruding pointed head 221, which is an integral structure with the lower mold 220, ensuring its structural strength. One side of the pointed head 221 has a positioning groove 222 that adapts to the outer contour of the central rod. In this embodiment, the positioning groove 222 is an arc-shaped groove. The design of the positioning groove 222 ensures accurate positioning of the central rod when placed on the lower mold 220, preventing the central rod from moving back and forth in the horizontal direction.

[0028] Furthermore, such as Figure 1As shown, a positioning block 400 is provided on one side of the support 200 on the base plate 110. The top of the positioning block 400 is flush with the top of the lower die 220. This is beneficial for the positioning block 400 to assist the support 200 in supporting the center bar during stamping. It should be noted that the top of the positioning block 400 is provided with a tooling groove structure adapted to the outer contour of the center bar (not shown in the figure, its structure is the same as the positioning groove structure but the positioning block runs through the left and right sides). This forms a collinear double-segment positioning groove 222 hole structure with the positioning groove 222 on the lower die 220, which is beneficial to further improve the installation stability of the center bar during stamping. The base plate 110 has a positioning baffle 500 on the side of the support 200 away from the positioning block 400. The positioning baffle 500 is an L-shaped plate structure. After the middle bar is stamped, the positioning baffle 500 forms a lateral positioning structure, which can be flexibly used according to actual operation needs. In some operation scenarios, the side wall of the positioning baffle 500 can be used to abut the right end of the middle bar to prevent the middle bar from sliding to the right. For the left side, the limiting effect can be achieved by hand-held auxiliary fixing. In order to adapt to the processing requirements of middle bars of different specifications, the positioning block 400, the positioning baffle 500 and the base plate 110 are respectively provided with installation position adjustment structures, specifically a combination structure of strip holes and bolts.

[0029] A cylinder 300 is mounted on the back plate 120 above the support 200. The main body of the cylinder 300 is fixedly mounted on the front side of the mounting plate 130. The telescopic rod of the cylinder 300 is vertically downward and connected to a punch 310. The punch 310 and the telescopic rod bracket are detachably connected for easy maintenance and replacement. An upper die 320 is provided at the bottom of the punch 310. In this embodiment, the bottom of the upper die 320 has two downward-protruding pointed structures above the pointed head 221 of the lower die 220. After the upper die 320 follows the punch 310 downward, it forms a longitudinal double-sided pressing structure with the lower die 220, creating three dot-shaped grooves on the center rod after stamping, achieving a threshold processing effect. This double-sided pressing structure can ensure that uniform pressure is applied to the center rod during the stamping process, improving the stamping quality.

[0030] To further ensure the stability of the upper die 320 during the stamping process and prevent the upper die 320 from shaking during downward stamping, thus causing axial rotation of the middle bar, combined with... Figure 3 and Figure 4The back plate 120 has a guide hole 123 located directly behind the punch 310. The guide hole 123 is a vertical strip-shaped through hole structure. A horizontally arranged guide rod 330 is movably connected within the guide hole 123. The front end of the guide rod 330 is connected to the rear side of the punch 310. The connection method can be bolted, welded, or otherwise, to ensure a firm connection. A bonding plate 340 is connected to the rear end of the guide rod 330. An elastic bonding structure is provided between the bonding plate 340 and the rear side wall of the back plate 120. The guide rod 330 moves up and down within the guide hole 123, providing stable guidance for the punch 310 and ensuring that the punch 310 remains vertical during its up and down movement without deviation. The elastic bonding structure allows the bonding plate 340 to maintain a tight fit with the rear side wall of the back plate 120, further reducing the wobbling of the guide rod 330 during movement and improving the accuracy and stability of the guidance.

[0031] Specifically, in combination Figure 5 and Figure 6 As shown, a connecting groove 341 is provided at the center of the front side of the bonding plate 340. The connecting groove 341 is used to connect the rear end of the guide rod 330. In this embodiment, the rear end of the guide rod 330 is inserted into the connecting groove 341 and then welded and fixed at the connection gap. In other embodiments, the rear end of the guide rod 330 and the connecting groove 341 can also be connected by a buckle or thread or other connection structure.

[0032] The bonding plate 340 has recessed grooves 342 on both sides of the connecting groove 341. The recessed grooves 342 are square countersunk structures. An inner pad 343 is movably connected inside the recessed groove 342. The outer contour of the inner pad 343 fits and connects with the inner contour of the recessed groove 342, but can slide in and out. A spring 344 is provided between the inner pad 343 and the bottom of the recessed groove 342. The two ends of the spring 344 are respectively connected and fixed to the bottom of the inner pad 343 and the recessed groove 342. This gives the connection at both ends of the spring 344 sufficient stability. The outer side of the inner pad 343 can provide an elastic fitting force to the rear sidewall of the back plate 120. This elastic fitting structure can keep the bonding plate 340 and the rear sidewall of the back plate 120 in close contact, further reducing the shaking of the guide rod 330 during movement and improving the accuracy and stability of guidance.

[0033] The function of the ball bearing 345 is to reduce the friction between the inner pad 343 and the rear side wall of the back plate 120, making the guide rod 330 move more smoothly up and down. The inner pad 343 has a spherical groove 3431 on its front side, and the ball bearing 345 is movably installed within the spherical groove 3431. A cover plate 346 is also connected to the front side of the inner pad 343, and the cover plate 346 has an opening for the front end of the ball bearing 345 to be exposed. This structure ensures that the ball bearing 345 rolls freely within the spherical groove 3431 while preventing it from falling out, thus ensuring the normal operation of the ball bearing 345.

[0034] During operation, the operator first places the center rod to be stamped into the positioning groove 222 of the lower die 220, ensuring that one end of the center rod mates with the tooling groove structure of the positioning block 400, and the other end contacts the positioning baffle 500, thereby achieving accurate positioning of the center rod. Then, the cylinder 300 is activated by a foot switch, and the extension rod of the cylinder 300 drives the punch 310 and the upper die 320 to move downward. During the downward movement of the punch 310, the guide rod 330 moves up and down within the guide hole 123, providing stable guidance for the punch 310 and ensuring that the punch 310 remains vertical during its up and down movement without deviation. At the same time, the elastic bonding structure keeps the bonding plate 340 in close contact with the rear side wall of the back plate 120, further reducing the swaying of the guide rod 330 during movement and improving the accuracy and stability of the guidance. When the upper die 320 follows the punch 310 down to the position where it engages with the lower die 220, the upper die 320 and the lower die 220 form a longitudinal double-sided pressing structure to stamp the connecting end of the middle rod. During the stamping process, due to the stabilizing effect of the guide structure, the problem of axial rotation of the middle rod caused by the wobbling of the upper die 320 is avoided, thus effectively preventing stamping deformation and improving stamping quality. After stamping is completed, the cylinder 300 drives the punch 310 and the upper die 320 to move upward, and the operator removes the stamped middle rod, ready for the next round of stamping operations.

[0035] Existing umbrella head stamping devices often fail to adequately consider and configure suitable guiding structures when configuring the pointed die, leading to easy wobbling of the upper die 320 during the stamping process, which in turn causes axial rotation of the center rod, affecting stamping quality. The pneumatic umbrella head pressing machine of this invention, through the cooperation of the guide rod 330, guide hole 123, and elastic fitting structure, provides a stable and reliable guiding effect for the punch 310, effectively preventing axial deflection of the center rod and improving stamping quality. This pneumatic umbrella head pressing machine, through its reasonable structural design and innovative technical solution, effectively solves the problem of some current umbrella head stamping devices lacking suitable guiding structures when configuring the pointed die, leading to stamping deformation and defective products due to axial deflection of the center rod during stamping. This equipment has significant advantages such as preventing axial deflection of the center rod, improving production efficiency, reducing production costs, and strong adaptability, and has broad application prospects in the umbrella processing industry and other fields requiring similar stamping processes. With the continuous development of the umbrella market and the increasing demands for product quality, the pneumatic umbrella head pressing machine of this utility model will play an increasingly important role and make a positive contribution to the technological progress and production development of the umbrella processing industry.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pneumatic umbrella head pressing machine, characterized in that, The system includes a base (100), on which a base plate (110) is mounted. A vertical back plate (120) is connected to the rear top of the base plate (110). A support seat (200) is detachably mounted on the base plate (110) in front of the back plate (120). A lower mold (220) is detachably mounted on the top of the support seat (200). The top of the lower mold (220) has an upwardly protruding pointed head (221). A positioning groove (222) adapted to the outer contour of the central rod is provided on one side of the pointed head (221). A cylinder (300) is mounted on the back plate (120) above the support seat (200). The telescopic rod of the cylinder (300) is vertically downward and connected to a... The punch (310) has an upper die (320) at its bottom. The upper die (320) follows the punch (310) downward and forms a longitudinal double-sided pressing structure with the lower die (220). The back plate (120) is located directly behind the punch (310) and has a guide hole (123). The guide hole (123) is a vertical strip-shaped through hole structure. A horizontally arranged guide rod (330) is movably connected in the guide hole (123). The front end of the guide rod (330) is connected to the rear side of the punch (310). The rear end of the guide rod (330) is connected to a bonding plate (340). An elastic bonding structure is provided between the bonding plate (340) and the rear side wall of the back plate (120).

2. The pneumatic umbrella head pressing machine according to claim 1, characterized in that, The base plate (110) is provided with a positioning block (400) on one side of the support (200). The top of the positioning block (400) is flush with the top of the lower mold (220), and the top of the positioning block (400) is provided with a tooling groove structure that adapts to the outer contour of the middle rod.

3. The pneumatic umbrella head pressing machine according to claim 2, characterized in that, The base plate (110) is provided with a positioning baffle (500) on the side of the support (200) away from the positioning block (400). The positioning baffle (500) forms a lateral positioning structure after the middle bar stamping fixture.

4. The pneumatic umbrella head pressing machine according to claim 3, characterized in that, The positioning block (400), the positioning baffle (500), and the base plate (110) are respectively provided with installation position adjustment structures.

5. The pneumatic umbrella head pressing machine according to claim 1, characterized in that, A mounting plate (130) is provided between the cylinder (300) and the back plate (120), and a longitudinal position adjustment structure is provided between the mounting plate (130) and the back plate (120).

6. The pneumatic umbrella head pressing machine according to claim 1, characterized in that, A connecting groove (341) is provided at the center of the front side of the bonding plate (340), and the connecting groove (341) is used to connect the rear end of the guide rod (330).

7. The pneumatic umbrella head pressing machine according to claim 6, characterized in that, The bonding plate (340) is provided with sink grooves (342) on the left and right sides of the connecting groove (341). An inner pad (343) is movably connected in the sink groove (342). A spring (344) is provided between the inner pad (343) and the bottom of the sink groove (342). The outer side of the inner pad (343) can provide an elastic bonding force to the rear side wall of the back plate (120).

8. The pneumatic umbrella head pressing machine according to claim 7, characterized in that, A number of evenly distributed ball bearings (345) are provided between the front side of the inner pad block (343) and the rear side wall of the back plate (120).

9. The pneumatic umbrella head pressing machine according to claim 8, characterized in that, The inner pad (343) has a spherical groove (3431) on its front side, and the ball (345) is movably installed in the spherical groove (3431). The inner pad (343) is also connected to a cover plate (346) on its front side, and the cover plate (346) has an opening for the front end of the ball (345) to be exposed.

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