Corner punching device for PVC (polyvinyl chloride) products

Abstract

The invention provides a PVC product corner punching device, and relates to the technical field of PVC product machining, the PVC product corner punching device comprises a machining table, a punching assembly is arranged in the middle of the upper end of the machining table, the punching assembly comprises a lifting plate, a die cutter is fixedly mounted in the middle of the bottom end of the lifting plate, and a hydraulic cylinder is arranged at the top of the lifting plate; a supporting base is arranged in the middle of the upper end of the machining table and fixedly installed on the outer side edge of the machining table, a cover die base is arranged in the middle of the upper end of the supporting base, and extending blocks are arranged in the middles of the two ends of the cover die base. The adjusting assembly is used for adjusting the distance between the extending blocks on the two sides and the cover die base. Through the synergistic effect of the adjusting assembly and the limiting and clamping assembly, automatic centering and multi-directional pressing of a product are achieved, the problems that manual film sleeving is inaccurate in positioning and not firm in fixing are thoroughly solved, it is ensured that the position of the product is accurate and stable in the punching process, and therefore the punching machining precision and operation safety are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of PVC product processing, in particular to a PVC product corner punching device. BACKGROUND

[0002] In the production process of PVC product decorative profiles, the specific corner parts often need to be punched for subsequent bending or corner forming. The traditional processing method mainly relies on manual operation to put the to-be-punched product on the fixed die holder, and then starts the punching device for punching. A "V" shaped or rectangular opening is opened by punching to eliminate material stress and facilitate subsequent 90 degree bending corner.

[0003] At present, such punching operations are mostly completed by manual operation of simple punching machines or dies, which has the following defects: Poor positioning accuracy: when manually placing the to-be-processed part on the die, it is difficult to ensure that the to-be-punched position is accurately aligned with the punching tool by manual adjustment, which may cause the punching position to deviate, affecting the subsequent bending quality and product appearance; Unreliable fixation: during processing, only manual pressing or simple clamping is used for fixation, and the PVC part is prone to displacement or rebound, which not only affects the punching accuracy, but also may cause tool damage or safety accidents due to material movement; Poor adaptability: for PVC products of different widths, the entire die holder needs to be replaced or adjusted, which is tedious and inefficient, and cannot quickly respond to the production needs of products of different specifications.

[0004] To solve the above problems, we propose a PVC product corner punching device to solve the above problems. SUMMARY

[0005] To solve the problems in the background art, the present application provides a PVC product corner punching device.

[0006] To achieve the above purpose, the technical scheme adopted by the present application is as follows: A PVC product corner punching device, comprising a processing table, a punching assembly is arranged at the upper end of the processing table, the punching assembly comprises a lifting plate, a die cutter is fixedly installed at the bottom end of the lifting plate, and a hydraulic cylinder is arranged at the top of the lifting plate; a supporting seat is arranged at the upper end of the processing table, the supporting seat is fixedly installed at the outer edge of the processing table and located at the bottom end of the die cutter, a die holder is arranged at the upper end of the supporting seat, and extension blocks are arranged at the two ends of the die holder. An adjusting assembly is arranged to adjust the distance between the two-side extending blocks and the sleeve mold base, which comprises a bidirectional transmission screw rod, the middle part of the two ends of the bidirectional transmission screw rod is transmissionally connected with a movable rod through a nut sleeve, the outer side end of the movable rod is fixedly connected with the sleeve mold base; The outer periphery of the sleeve mold base is provided with a limiting clamping assembly, which comprises a clamping plate and two groups of pressing plates movably installed on the middle part of the upper end of the clamping plate.

[0007] Preferably, the clamping plate is located on the front surface of the sleeve mold base, the middle part of the two ends of the clamping plate is provided with a hydraulic rod, the base of the two groups of hydraulic rods is fixedly installed on the upper end surface of the machining table, and is respectively located on the two sides of the supporting base.

[0008] Preferably, the upper end of the clamping plate is provided with a limiting groove on both sides, the two groups of pressing plates are movably installed in the limiting grooves on both sides respectively, and are driven by the lifting cylinders to move up and down in the limiting grooves.

[0009] Preferably, the lifting cylinder is fixedly installed on the front lower side of the clamping plate, the output end of the lifting cylinder is fixedly installed with a connecting frame, and the two groups of pressing plates are fixedly installed on the two sides of the connecting frame respectively.

[0010] Preferably, the middle part of the inner side of the channel is movably installed with the bidirectional transmission screw rod through a bearing, the middle part of the bottom end of the bidirectional transmission screw rod is provided with a driving assembly, the bidirectional transmission screw rod is driven to rotate by the driving assembly, so that the two movable rods relatively slide in the channel.

[0011] Preferably, the driving assembly comprises a servo motor, the servo motor is fixedly installed on the inner side of the supporting base, the output end of the servo motor is installed with a driving gear, the upper end left side of the driving gear is meshingly connected with a transmission gear, and the transmission gear is fixedly installed on the middle part of the bidirectional transmission screw rod.

[0012] Preferably, the middle part of the two ends of the movable rod is provided with a limiting assembly, the limiting assembly comprises a limiting hole and a limiting guide column, the limiting hole is arranged in the end of the sleeve mold base, the limiting guide column is movably installed in the limiting hole, and the outer side end of the limiting guide column is fixedly connected with the extending block.

[0013] Preferably, the top of the machining table is fixedly installed with a supporting frame through a plurality of supporting columns, the lifting plate is located in the middle part of the bottom end of the supporting frame, and the base of the hydraulic cylinder is fixedly installed in the middle part of the upper end of the supporting frame.

[0014] Preferably, the top of the machining table is fixedly installed with a supporting frame through a plurality of supporting columns, the lifting plate is located in the middle part of the bottom end of the supporting frame, and the base of the hydraulic cylinder is fixedly installed in the middle part of the upper end of the supporting frame.

[0015] Preferably, the upper end of the lifting plate is provided with guide columns on both sides, the guide columns are located at the middle of the two ends of the hydraulic cylinder respectively, and are slidably connected with the support frame.

[0016] Compared with the prior art, the application has the beneficial effects that: The automatic centering and multi-directional pressing of the product are realized through the synergistic effect of the adjusting assembly and the limiting and clamping assembly, the problems of inaccurate and unstable product positioning are solved, the product position is accurate and stable during the punching process, and therefore the precision and operation safety of the punching process are effectively improved. In addition, the distance between the two extension blocks and the sleeve mold base can be flexibly adjusted through the adjusting assembly, different sizes of PVC products can be adapted, and therefore the versatility and production efficiency of the equipment are effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the application; Figure 2 is a whole structural schematic diagram of the adjusting assembly and the limiting and clamping assembly in the application; Figure 3 is a structural schematic diagram of the limiting and clamping assembly in the application; Figure 4 is a sectional structural schematic diagram of the adjusting assembly in the application.

[0018] In the figure: 1, processing table; 2, support frame; 3, support column; 4, hydraulic cylinder; 5, guide column; 6, lifting plate; 7, die cutting knife; 8, support base; 9, sleeve mold base; 10, extension block; 11, channel; 12, movable rod; 13, nut sleeve; 14, bidirectional transmission screw; 15, transmission gear; 16, driving gear; 17, servo motor; 18, limiting guide column; 19, limiting hole; 20, clamping plate; 21, hydraulic rod; 22, pressing plate; 23, limiting groove; 24, connecting frame; 25, lifting cylinder. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiment of the application is to solve the problems in the background art, and the general idea is as follows: the punching assembly, the adjusting assembly and the clamping assembly in the application work cooperatively to realize the full-process automatic operation from product positioning and clamping to punching, reduce manual intervention, and reduce labor intensity and waste rate; The distance between the two extension blocks 10 and the sleeve die base 9 can be flexibly adjusted through the adjusting assembly, so that the device of the application can adapt to PVC products of different sizes, improve the versatility and production efficiency of the device; then the automatic centering correction, front limiting and compression fixing of the product can be performed by cooperating with the limiting and clamping assembly, thereby solving the positioning deviation and inaccurate punching defects that are prone to occur in the traditional manual placement of the product, realizing the automatic centering and stable fixing of the product, and ensuring the accurate and stable position of the product during the punching process, thereby effectively improving the precision and operation safety during the punching process. Embodiment: refer to Figure 1 Figure 4 As shown in the figure, the pvc product corner punching device of the embodiment comprises a machining table 1, the upper middle part of the machining table 1 is provided with a punching assembly, the punching assembly comprises a lifting plate 6, the bottom middle part of the lifting plate 6 is fixedly installed with a die cutter 7, the top of the lifting plate 6 is provided with a hydraulic cylinder 4; The upper middle part of the machining table 1 is provided with a supporting seat 8, the supporting seat 8 is fixedly installed at the outer side edge position of the machining table 1 and is located at the bottom middle part of the die cutter 7, the upper middle part of the supporting seat 8 is provided with a sleeve die base 9, and the two middle parts of the sleeve die base 9 are provided with extension blocks 10; The adjusting assembly is used for adjusting the distance between the two extension blocks 10 and the sleeve die base 9, and the adjusting assembly comprises a bidirectional transmission screw rod 14, the two middle parts of the bidirectional transmission screw rod 14 are both transmissionally connected with a movable rod 12 through a nut sleeve 13, and the outer side end of the movable rod 12 is fixedly connected with the sleeve die base 9. The outer periphery of the sleeve die base 9 is provided with a limiting and clamping assembly, and the limiting and clamping assembly comprises a clamping plate 20 and two groups of pressing plates 22 movably installed at the upper middle part of the clamping plate 20.

[0020] During processing, the bidirectional transmission screw rod 14 in the adjusting assembly is rotated, the two movable rods 12 are relatively moved through the nut sleeve 13, so as to adjust the position of the extension block 10, so as to adapt to products of different lengths and sizes, and after the product is preliminarily sleeved on the sleeve die base 9 and the extension block 10, Firstly, the clamping plate 20 of the limiting and clamping assembly is started to limit the front of the product, then the two extension blocks 10 are extended outward, so that the product is centered, and finally the pressing plate 22 in the limiting and clamping assembly is pressed to fix the product, so as to prevent displacement during punching, and form stable clamping and fixing. At this time, the punching assembly can be started, the lifting plate 6 is driven to be pressed down through the hydraulic cylinder 4, and the die cutter 7 is driven to punch the PVC product placed on the sleeve die base 9.

[0021] ​In some examples, the clamping plate 20 is located on the front of the sleeve mold base 9, and the middle of both ends of the clamping plate 20 is provided with a hydraulic rod 21, and the bases of the two groups of hydraulic rods 21 are fixedly installed on the upper end surface of the machining table 1 and are located on the two sides of the support base 8 respectively. The hydraulic rod 21 drives the clamping plate 20 to move forward and backward, realizing the positioning and loosening of the product front.

[0022] In some examples, the upper end of the clamping plate 20 is provided with a limiting groove 23 on both sides, and two groups of pressing plates 22 are movably installed in the limiting grooves 23 on both sides and are driven to move up and down in the limiting grooves 23 by the lifting cylinder 25. The limiting groove 23 guides the vertical movement of the pressing plate 22, ensures the stability of the lifting movement, and enables the pressing plate 22 to stably press against the surface of the product.

[0023] In some examples, the lifting cylinder 25 is fixedly installed on the front lower side of the clamping plate 20, the output end of the lifting cylinder 25 is fixedly installed with a connecting frame 24, and two groups of pressing plates 22 are fixedly installed on the two sides of the connecting frame 24. The lifting cylinder 25 synchronously drives the two pressing plates 22 on both sides to lift through the connecting frame 24, realizing symmetrical pressing.

[0024] In some examples, the inner cavity of the sleeve mold base 9 is provided with a channel 11 in the middle, and one end of the movable rod 12 is slidably installed in the channel 11. The channel 11 provides a sliding space for the movable rod 12, ensuring smooth movement.

[0025] In some examples, the bidirectional transmission screw rod 14 is movably installed in the middle of the inner side of the channel 11, and the bottom middle of the bidirectional transmission screw rod 14 is provided with a driving assembly. The driving assembly drives the bidirectional transmission screw rod 14 to rotate, so that the two movable rods 12 in the channel 11 move relatively; the driving assembly provides power to make the bidirectional transmission screw rod 14 rotate and drive the movable rod 12 to move synchronously in the opposite direction.

[0026] In some examples, the driving assembly includes a servo motor 17, the servo motor 17 is fixedly installed in the middle of the inner side of the support base 8, the output end of the servo motor 17 is installed with a driving gear 16, the upper end left side of the driving gear 16 is meshed with a transmission gear 15, and the transmission gear 15 is fixedly installed in the middle of the bidirectional transmission screw rod 14.

[0027] The servo motor 17 is started to drive the bidirectional transmission screw rod 14 to rotate through gear transmission, so as to realize accurate control of the position of the extension block 10 to extend outward or shrink inward.

[0028] In some examples, the middle of both ends of the active rod 12 is provided with a limiting assembly, which includes a limiting hole 19 and a limiting guide column 18, the limiting hole 19 is opened in the end of the sleeve mold base 9, the limiting guide column 18 is movably installed in the limiting hole 19, the outer side end of the limiting guide column 18 is fixedly connected with the extension block 10, and the limiting guide column 18 slides in the limiting hole 19, which plays a limiting guide role and is mainly used for preventing the extension block 10 from deflecting during movement.

[0029] In some examples, the top of the processing table 1 is fixedly installed with a support frame 2 through a plurality of support columns 3, the lifting plate 6 is located in the middle of the bottom end of the support frame 2, and the base of the hydraulic cylinder 4 is fixedly installed in the middle of the upper end of the support frame 2.

[0030] In some examples, the upper end of the lifting plate 6 is provided with a guide column 5 on both sides, the guide column 5 is located in the middle of both ends of the hydraulic cylinder 4 respectively, and is slidably connected with the support frame 2, limiting guide is realized through the guide column 5, which can ensure that the movement direction of the lifting plate 6 is vertical and prevent the die cutting knife 7 from deflecting.

[0031] The working principle of the present application is as follows: When punching processing is needed, first of all, the worker needs to adjust the distance between the two extension blocks 10 to a suitable distance by driving the two extension blocks 10 to move through the adjusting assembly according to the size, for example, the length, of the PVC product to be processed.

[0032] Then, the limiting clamping assembly starts to work: first, the clamping plate 20 moves backward under the pushing of the hydraulic rod 21, towards the sleeve mold base 9, and abuts against the front end face of the product, so that the front end face of the product is attached to the front end face of the sleeve mold base 9, and the preliminary positioning is completed. Subsequently, the adjusting assembly acts again to drive the two extension blocks 10 to expand outward synchronously, and the outer side face of the extension block 10 pushes the product to automatically center it in the length direction, so as to ensure that the center line of the product is aligned with the die cutting knife 7. After the centering is completed, the lifting cylinder 25 drives the two sets of pressing plates 22 to press downward, so as to firmly fix the top face of the product on the sleeve mold base 9 and the extension block 10, and form the positioning and clamping.

[0033] Finally, the punching assembly is started, the hydraulic cylinder 4 drives the die cutting knife 7 to punch downward quickly, and a required shape opening is punched out at the middle of the top face of the product, that is, at the preset corner position, and after the punching is completed, each component is reset in turn, and the processed product can be taken out.

[0034] Through the cooperation of the adjusting assembly and the limiting clamping assembly, the automatic centering and multi-directional pressing of the product are realized, the problems of inaccurate manual positioning and unstable fixing are solved, the punching precision and operation safety are significantly improved, and the adjustable extension block 10 can make the device quickly adapt to products of different specifications, so as to effectively enhance the versatility and production efficiency of the equipment.

[0035] The present application realizes full-process automatic operation from product positioning, clamping to punching through the cooperation of the punching assembly, the adjusting assembly and the clamping assembly, reduces manual intervention, and reduces labor intensity and waste rate.

[0036] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for corner punching of pvc products, characterized in that, Including processing platform (1), the upper end middle part of processing platform (1) is provided with die cutting assembly, die cutting assembly includes lifting plate (6), the bottom end middle part of lifting plate (6) is fixedly installed with die cutting knife (7), the top of lifting plate (6) is provided with hydraulic cylinder (4); The upper end middle part of processing platform (1) is provided with support seat (8), support seat (8) is fixedly installed at the outer side edge position of processing platform (1), and is located at the bottom end middle part of die cutting knife (7), the upper end middle part of support seat (8) is provided with sleeve die seat (9), both ends middle part of sleeve die seat (9) is provided with extension block (10); Adjusting assembly is used for adjusting the distance between both sides extension block (10) and sleeve die seat (9), adjusting assembly includes bidirectional transmission screw rod (14), both ends middle part of bidirectional transmission screw rod (14) is drivenly connected with movable rod (12) through nut sleeve (13), the outer side end of movable rod (12) is fixedly connected with sleeve die seat (9); The periphery of sleeve die seat (9) is provided with limit clamping assembly, limit clamping assembly includes clamping plate (20), and two groups of pressing plate (22) movably installed at the upper end middle part of clamping plate (20).

2. A device for punching corners of PVC products according to claim 1, characterized in that, The upper end both sides of clamping plate (20) are provided with limit slot (23), two groups of pressing plate (22) are movably installed in both sides limit slot (23) respectively, and are driven to lift in limit slot (23) by lifting cylinder (25).

3. A device for punching corners of PVC products according to claim 2, characterized in that, The output end of lifting cylinder (25) is fixedly installed with connecting frame (24), two groups of pressing plate (22) are fixedly installed at both sides of connecting frame (24) respectively.

4. A device for punching corners of PVC products according to claim 3, characterized in that, The inner cavity middle part of sleeve die seat (9) is provided with channel (11), one end of movable rod (12) is slidably installed in channel (11).

5. A device for punching corners of PVC products according to claim 4, characterized in that, Bidirectional transmission screw rod (14) is movably installed in the inner side middle part of channel (11) through bearing, the bottom end middle part of bidirectional transmission screw rod (14) is provided with drive assembly, bidirectional transmission screw rod (14) is driven to rotate by drive assembly, so that both sides movable rod (12) is relatively slid in channel (11).

6. A device for punching corners of PVC products according to claim 5, characterized in that, The output end of servo motor (17) is installed with drive gear (16), the upper end left side of drive gear (16) is engagedly connected with transmission gear (15), transmission gear (15) is fixedly installed in the middle part of bidirectional transmission screw rod (14).

7. A device for punching corners of PVC products according to claim 6, characterized in that, ​ 8. A device for punching corners of PVC products according to claim 7, characterized in that, The middle of both ends of the movable rod (12) is provided with a limiting assembly, the limiting assembly comprises a limiting hole (19) and a limiting guide post (18), the limiting hole (19) is opened in the end of the sleeve mold base (9), the limiting guide post (18) is movably installed in the limiting hole (19), and the outer side end of the limiting guide post (18) is fixedly connected with the extension block (10).

9. A device for punching corners of PVC products according to claim 8, characterized in that, The top of the processing table (1) is fixedly installed with a support frame (2) through a plurality of groups of support columns (3), the lifting plate (6) is located at the bottom end of the support frame (2), and the base of the hydraulic cylinder (4) is fixedly installed at the upper end of the support frame (2).

10. A device for punching corners of PVC products according to claim 9, characterized in that, The upper end of the lifting plate (6) is provided with a guide column (5) on both sides, the guide column (5) is respectively located at the middle of both ends of the hydraulic cylinder (4), and is in sliding connection with the support frame (2).

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