Forming jig of box punching machine
By setting limiting components and guiding structures in the forming fixture of the box punching machine, the problem of lack of guidance and positioning in existing fixtures is solved, and stable forming and efficient production of paper boxes are achieved.
Patent Information
- Application Number
- CN202520037688.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Existing cardboard box forming fixtures lack guiding and positioning functions, resulting in unsatisfactory folding shapes of medicine boxes, high degree of operational freedom, and high scrap rates.
Limiting components are set on the sides, top, and back of the forming fixture of the box punching machine, including horizontal guide brackets, elastic brackets, side forming mechanisms, and depth baffle assemblies. The cardboard is precisely positioned and guided by structures such as clamping blocks, roller columns, and inner curved guide plates to ensure stable forming of the carton.
It improves the stability and reliability of cardboard box forming, reduces the scrap rate of folded medicine boxes, and ensures the forming quality of cardboard boxes.
Smart Images
Figure CN223791088U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device packaging, and specifically relates to a forming fixture for a box punching machine. Background Technology
[0002] In the medical packaging field, a large number of cardboard boxes are needed to package medical drugs and devices. A cardboard box forming machine is a device used for automatically folding and forming cardboard boxes. It can automatically fold flat cardboard materials into various shapes through a series of mechanical actions, reducing the tediousness and labor intensity of manual folding and significantly improving the production efficiency of cardboard boxes. The forming fixture inside the cardboard box forming machine is a key component for folding and shaping the cardboard. The positioning stability and accuracy of the forming fixture affect the final folded shape of the cardboard box. Existing fixtures lack guiding and positioning functions, allowing for a large degree of operational freedom when adjusting the box size. Adjustments can be made between various components, but sometimes improper adjustments result in unsatisfactory folded shapes, such as a trumpet shape, leading to a high scrap rate. Therefore, improvements to existing equipment are necessary. Utility Model Content
[0003] To address the aforementioned problems and technical needs, this utility model provides a forming fixture for a box punching machine. Limiting components are provided on the sides, top, and back of the fixture, making the positioning more reliable when the cardboard is folded, improving the shape of the medicine box, and increasing the stability of the operation.
[0004] The technical solution of this utility model is as follows: A forming fixture for a box punching machine includes a horizontal guide bracket, an elastic bracket, a side forming mechanism, and a depth baffle assembly. Two horizontal guide brackets are arranged vertically opposite each other, and the horizontal guide brackets are connected by side forming mechanisms arranged horizontally opposite each other. The rectangular space enclosed by the horizontal guide brackets and the side forming mechanisms is the four-sided forming area of the paper box workpiece. Two sets of elastic brackets are respectively connected above the upper horizontal guide bracket and below the lower horizontal guide bracket. A depth baffle assembly is provided behind the four-sided forming area. The top and bottom of the depth baffle assembly are respectively connected to the upper and lower elastic brackets. The depth baffle assembly can slide, adjust, and lock along the elastic bracket. The depth baffle assembly limits the depth to which the paper box workpiece is pushed backward. The top of the upper horizontal guide bracket is also provided with a lid guide plate for the paper box workpiece.
[0005] Furthermore, the horizontal guide bracket includes a circular elongated tube, a clamping block, and a support block. The two circular elongated tubes are arranged parallel to each other and are fixedly connected by multiple clamping blocks at equal intervals. A support block is clamped at each end of the two circular elongated tubes. The front and rear end faces of the support block are arc surfaces corresponding to the circular elongated tubes. The support block is slidably connected between the front and rear circular elongated tubes. A clamping block is provided on both sides of the support block. A spring is connected between the support block and the outer clamping block. The spring pushes the support block inward so that the support block is pressed against the inner clamping block.
[0006] Furthermore, the clamping block includes a long clamping block, a short clamping block, and a locking screw. The inner side of the long clamping block is provided with two semi-circular grooves, and the front and rear ends of the short clamping block are both quarter-circular grooves. The inner and outer sides of the long cylindrical tube are respectively embedded in the quarter-circular groove and the semi-circular groove. The middle of the long clamping block and the short clamping block are locked by the locking screw. The paper box workpiece is pushed in from the front side of the long cylindrical tube, and the contact surface between the paper box workpiece and the long cylindrical tube is a quarter-circular surface.
[0007] Furthermore, the side forming mechanism includes a roller column and an inner bending guide plate. A first bearing is embedded in the opposite surface of the upper and lower support blocks, and a second bearing is embedded in the center of both ends of the roller column. The first bearing and the second bearing are connected by a transmission shaft. The roller column rolls relative to the outer side of the box as the paper box workpiece is pushed in. An inner bending guide plate is provided on the front side of each roller column. The end of the inner bending guide plate is bent inward horizontally. The inner bending guide plate guides the side of the pushed paper box workpiece.
[0008] Furthermore, each roller column has two corresponding inner bending guide plates on its front side. The upper inner bending guide plate is fixedly connected to the bottom surface of the upper clamping block, and the lower inner bending guide plate is fixedly connected to the top surface of the lower clamping block. The front end of the inner bending guide plate is bent inward at 90 degrees, and an inclined guide surface is provided at the bending angle.
[0009] Furthermore, the elastic support includes a support and disc springs. The support is arranged parallel to the pushing direction of the paper box workpiece. The bottom surface of the support is provided with a sliding groove, which is consistent with the pushing direction. The top surface of the upper support block and the bottom surface of the lower support block are respectively provided with horizontal baffles. The horizontal baffles are fixedly connected to two clamping blocks. Two disc springs are connected between the front section of the sliding groove and the horizontal baffles. The rear section of the sliding groove is connected to a depth baffle assembly, which can be adjusted back and forth along the sliding groove.
[0010] Furthermore, the depth baffle assembly includes an upper connecting plate, a lower connecting plate, and two back plates. Both the upper and lower connecting plates are L-shaped. The top surface of the upper connecting plate is connected to a top sliding groove by bolts, and the bottom surface of the lower connecting plate is connected to a bottom sliding groove by bolts. The vertical plates of the upper and lower connecting plates are connected by two back plates that are opposite each other. The upper and lower connecting plates drive the two back plates to adjust back and forth in the pushing direction, limiting the pushing depth of the paper box workpiece. When pushed in, the bottom surface of the paper box workpiece rests on the two back plates.
[0011] Furthermore, the upper connecting plate is provided with two locking bolts in the middle, and the tail of the box cover guide plate is locked to the upper connecting plate by the locking bolts.
[0012] Furthermore, the front end of the lid guide plate is curved upwards, and the front end of the lid guide plate presses down and guides the lid of the paper box workpiece.
[0013] Furthermore, the tail end of the lid guide plate has two elongated holes, and two locking bolts are used to lock the lid guide plate through the two elongated holes. The lid guide plate can be adjusted to extend and retract forward and backward.
[0014] The beneficial effects of this utility model are:
[0015] 1) The upper and lower elastic supports are respectively subjected to vertical pressure on the horizontal guide support through disc springs. When the paper box workpiece is pushed into the four-sided forming area, the upper and lower round tubes and clamping blocks apply pressure to the upper and lower surfaces of the paper box, so that the upper and lower surfaces are folded and formed.
[0016] 2) The left and right rollers are used to form the left and right sides of the paper box workpiece. Since the rollers are connected to the horizontal springs through the upper and lower support blocks, when the workpiece is pushed in, the compressed left and right springs apply a clamping force to the left and right sides of the workpiece through the rollers, so that the left and right sides can be rolled and shaped.
[0017] 3) The depth baffle assembly set behind the four-sided forming area can adjust the depth to which the carton workpiece is pushed in by sliding adjustment between the upper connecting plate and the lower connecting plate and the bracket slide groove. During use, the depth baffle assembly can be freely adjusted according to the limited depth of the carton workpiece to avoid pushing in too deep or too shallow, which would cause the folding shape to be substandard.
[0018] 4) Two sets of inward-curved guide plates are respectively installed in front of the two roller columns. The inclined guiding surface of the inward-curved guide plates can effectively guide the sheet material on both sides while the sheet carton workpiece is pushed in, so as to avoid the sheet material being scratched during the pushing process. Similarly, the opposite surfaces of the upper and lower corresponding front row of round tubes also leave a quarter cylindrical surface to guide the upper and lower sheets. The box cover guide plate with an arc-shaped upward curve at the top front end is used to press down and guide the box cover. These inclined, circular or arc-shaped guide surfaces all have a good protective effect on the carton workpiece when it is pushed in, avoiding scrap due to scratches and improving the pass rate of the stamping process. Attached Figure Description
[0019] Figure 1 This is an overall structural diagram of the forming fixture for the punching machine of this utility model;
[0020] Figure 2 This is a structural diagram of the horizontally aligned guide bracket in this utility model;
[0021] Figure 3 This is a top view of the forming fixture for the punching machine of this utility model;
[0022] Figure 4 for Figure 3 Sectional view at point AA;
[0023] Figure 5This is a diagram showing the elastic connection between the support block and the roller column in this utility model.
[0024] Figure 6 This is a structural diagram of the clamping block in this utility model;
[0025] Figure 7 This utility model provides a connection structure for the elastic support and depth baffle assembly. Figure 1 ;
[0026] Figure 8 This utility model provides a connection structure for the elastic support and depth baffle assembly. Figure 2 ;
[0027] The components are marked as follows: horizontal guide bracket 1, round long tube 11, clamping block 12, long clamping block 121, short clamping block 122, locking screw 123, support block 13, first bearing 131, horizontal baffle 132, spring 14, elastic bracket 2, bracket 21, disc spring 22, slide groove 23, side forming mechanism 3, roller column 31, inner bent guide plate 32, inclined guide surface 321, second bearing 33, drive shaft 34, depth baffle assembly 4, upper connecting plate 41, lower connecting plate 42, back plate 43, bolt 44, box cover guide plate 5, locking bolt 51, long hole 52. Detailed Implementation
[0028] The present invention will now be further described with reference to the accompanying drawings and embodiments.
[0029] like Figure 1-8 The diagram shows a forming fixture for a box punching machine according to this utility model, including a horizontal guide bracket 1, an elastic bracket 2, a side forming mechanism 3, and a depth baffle assembly 4. Two horizontal guide brackets 1 are arranged vertically opposite each other, and are connected by side forming mechanisms 3 arranged horizontally opposite each other. The rectangular space enclosed by the horizontal guide brackets 1 and the side forming mechanism 3 is the four-sided forming area of the paper box workpiece. Two sets of elastic brackets 2 are respectively connected above the upper horizontal guide bracket and below the lower horizontal guide bracket. A depth baffle assembly 4 is arranged behind the four-sided forming area. The top and bottom of the depth baffle assembly 4 are respectively connected to the upper and lower elastic brackets 2. The depth baffle assembly 4 can slide, adjust, and lock along the elastic bracket 2, and limits the depth to which the paper box workpiece is pushed backward.
[0030] The horizontal guide bracket 1 includes a circular elongated tube 11, a clamping block 12, and a support block 13. Two circular elongated tubes 11 are arranged parallel to each other and are fixedly connected by multiple clamping blocks 12 at equal intervals. A support block 13 is clamped at each end of the two circular elongated tubes 11. The front and rear end faces of the support block 13 are arc surfaces corresponding to the circular elongated tubes. The support block 13 is slidably connected between the front and rear circular elongated tubes 11. A clamping block 12 is provided on both sides of the support block 13. A spring 14 is connected between the support block 13 and the outer clamping block 12. The spring 14 pushes the support block 13 inward so that the support block 13 is pressed against the inner clamping block 12. The clamping block 12 includes a long clamping block 121, a short clamping block 122, and a locking screw 123. The inner side of the long clamping block 121 is provided with two semi-circular grooves. The front and rear ends of the short clamping block 122 are both quarter-circular grooves. The inner and outer sides of the long tube 11 are respectively embedded in the quarter-circular groove and the semi-circular groove. The middle of the long clamping block 121 and the short clamping block 122 are locked by the locking screw 123. The paper box workpiece is pushed in from the front side of the long tube 11. The contact surface between the paper box workpiece and the long tube 11 is a quarter-circular surface.
[0031] The side forming mechanism 3 includes a roller column 31 and an inner bending guide plate 32. A first bearing 131 is embedded in the opposite surface of the upper and lower support blocks 13, and a second bearing 33 is embedded in the center of both ends of the roller column 31. The first bearing 131 and the second bearing 33 are connected by a transmission shaft 34. The roller column 31 rolls relative to the outer side of the box as the paper box workpiece is pushed in. An inner bending guide plate 32 is provided on the front side of each roller column 31. The end of the inner bending guide plate 32 is bent inward horizontally, and the inner bending guide plate 32 guides the side of the pushed paper box workpiece. Each roller column 31 has two corresponding inner bending guide plates 32 on its front side. The upper inner bending guide plate is fixedly connected to the bottom surface of the upper clamping block, and the lower inner bending guide plate is fixedly connected to the top surface of the lower clamping block. The front end of the inner bending guide plate 32 is bent inward at 90 degrees, and an inclined guide surface 321 is provided at the bending angle.
[0032] The elastic support 2 includes a support 21 and disc springs 22. The support 21 is arranged parallel to the pushing direction of the paper box workpiece. The bottom surface of the support 21 is provided with a sliding groove 23, which is consistent with the pushing direction. The top surface of the upper support block and the bottom surface of the lower support block are respectively provided with horizontal baffles 132. The horizontal baffles 132 are fixedly connected to two clamping blocks 12. Two disc springs 22 are connected between the front section of the sliding groove 23 and the horizontal baffles 132. The rear section of the sliding groove 23 is connected to a depth baffle assembly 4, which can be adjusted back and forth along the sliding groove 23.
[0033] The depth baffle assembly 4 includes an upper connecting plate 41, a lower connecting plate 42, and two back plates 43. Both the upper connecting plate 41 and the lower connecting plate 42 are L-shaped. The top surface of the upper connecting plate 41 is connected to the top slide groove 23 by bolts 44, and the bottom surface of the lower connecting plate 42 is connected to the bottom slide groove 23 by bolts 44. The vertical plates of the upper connecting plate 41 and the lower connecting plate 42 are connected by two back plates 43 that are opposite each other. The upper and lower connecting plates drive the two back plates 43 to adjust back and forth in the pushing direction to limit the pushing depth of the paper box workpiece. When pushing in, the bottom surface of the paper box workpiece rests on the two back plates 43.
[0034] The top of the upper horizontal guide bracket is also equipped with a lid guide plate 5 for the cardboard box workpiece. The front end of the lid guide plate 5 is curved upwards, and the front end of the lid guide plate 5 presses down to guide the lid of the cardboard box workpiece. Two locking bolts 51 are provided in the middle of the upper connecting plate 41, and the tail end of the lid guide plate 5 is locked to the upper connecting plate 41 by the locking bolts 51. Specifically, two elongated holes 52 are opened at the tail end of the lid guide plate 5, and the two locking bolts 51 lock the lid guide plate 5 through the two elongated holes 52, allowing the lid guide plate 5 to be adjusted back and forth.
[0035] The working process of this utility model is as follows: According to the depth of the paper box workpiece to be processed, the positions of the upper connecting plate 41 and the lower connecting plate 42 are adjusted between the two elastic supports 2, and then locked with bolts 44 after adjustment; the external workpiece fixture picks up the bottom surface of the paper box workpiece sheet, and extends the bottom surface inward from the rectangular opening surrounded by the upper and lower round tubes and the left and right rollers. The inner curved guide plate 32 guides the cardboard on the left and right sides to fold inward, and the front round tube 11 guides the upper and lower cardboard to fold inward. During the process of the fixture pushing inward, the disc springs 22 set at the top and bottom apply a clamping force to the round tube 11 and the clamping block 12, and the springs connected to the inner side of the left and right support blocks 13 apply a clamping force to the left and right rollers 31. Therefore, the four sides of the paper box workpiece are subjected to elastic clamping force, which has a good folding and clamping effect. Before the fixture is pushed to the bottom, the box cover guide plate 5 limits the paper box cover and presses the box cover down to limit it. When the fixture pushes the bottom surface to touch the back plate 43, the folding is completed.
[0036] The above descriptions are merely several preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations and substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.
Claims
1. A forming fixture for a punching machine, characterized in that: It includes a horizontal guide bracket, an elastic bracket, a side forming mechanism, and a depth baffle assembly. Two horizontal guide brackets are arranged vertically opposite each other and are connected by side forming mechanisms arranged horizontally opposite each other. The rectangular space enclosed by the horizontal guide brackets and the side forming mechanism is the four-sided forming area of the paper box workpiece. Two sets of elastic brackets are respectively connected above the upper horizontal guide bracket and below the lower horizontal guide bracket. A depth baffle assembly is set behind the four-sided forming area. The top and bottom of the depth baffle assembly are connected to the upper and lower elastic brackets, respectively. The depth baffle assembly can slide, adjust, and lock along the elastic bracket. The depth baffle assembly limits the depth to which the paper box workpiece is pushed backward. The top of the upper horizontal guide bracket is also provided with a lid guide plate for the paper box workpiece.
2. The forming fixture for a punching machine according to claim 1, characterized in that: The horizontal guide bracket includes a cylindrical tube, a clamping block, and a support block. The two cylindrical tubes are arranged parallel to each other and are fixedly connected by multiple clamping blocks at equal intervals. A support block is clamped at each end of the two cylindrical tubes. The front and rear end faces of the support block are arc surfaces corresponding to the cylindrical tubes. The support block is slidably connected between the front and rear cylindrical tubes. A clamping block is provided on both sides of the support block. A spring is connected between the support block and the outer clamping block. The spring pushes the support block inward so that the support block is pressed against the inner clamping block.
3. The forming fixture for a punching machine according to claim 2, characterized in that: The clamping block includes a long clamping block, a short clamping block, and a locking screw. The inner side of the long clamping block is provided with two semi-circular grooves. The front and rear ends of the short clamping block are both quarter-circular grooves. The inner and outer sides of the long cylindrical tube are respectively embedded in the quarter-circular groove and the semi-circular groove. The middle of the long clamping block and the short clamping block are locked by the locking screw. The paper box workpiece is pushed in from the front side of the long cylindrical tube. The contact surface between the paper box workpiece and the long cylindrical tube is a quarter-circular surface.
4. The forming fixture for a punching machine according to claim 3, characterized in that: The side forming mechanism includes rollers and inner bending guide plates. A first bearing is embedded in the opposite surface of the upper and lower support blocks, and a second bearing is embedded in the center of both ends of the roller. The first and second bearings are connected by a transmission shaft. The roller rolls relative to the outer side of the box as the paper box workpiece is pushed in. An inner bending guide plate is provided on the front side of each roller. The end of the inner bending guide plate is bent inward horizontally. The inner bending guide plate guides the side of the pushed paper box workpiece.
5. A forming fixture for a punching machine according to claim 4, characterized in that: Each roller column has two corresponding inner bending guide plates on its front side. The upper inner bending guide plate is fixedly connected to the bottom surface of the upper clamping block, and the lower inner bending guide plate is fixedly connected to the top surface of the lower clamping block. The front end of the inner bending guide plate is bent inward at 90 degrees, and an inclined guide surface is provided at the bending angle.
6. A forming fixture for a punching machine according to claim 5, characterized in that: The elastic support includes a support and disc springs. The support is arranged parallel to the pushing direction of the paper box workpiece. The bottom surface of the support is provided with a sliding groove, which is consistent with the pushing direction. The top surface of the upper support block and the bottom surface of the lower support block are respectively provided with horizontal baffles. The horizontal baffles are fixedly connected to two clamping blocks. Two disc springs are connected between the front section of the sliding groove and the horizontal baffles. The rear section of the sliding groove is connected to a depth baffle assembly, which can be adjusted back and forth along the sliding groove.
7. A forming fixture for a punching machine according to claim 6, characterized in that: The depth baffle assembly includes an upper connecting plate, a lower connecting plate, and two back plates. Both the upper and lower connecting plates are L-shaped. The top surface of the upper connecting plate is connected to a top sliding groove by bolts, and the bottom surface of the lower connecting plate is connected to a bottom sliding groove by bolts. The vertical plates of the upper and lower connecting plates are connected by two back plates that are opposite each other. The upper and lower connecting plates drive the two back plates to adjust back and forth in the pushing direction, limiting the pushing depth of the paper box workpiece. When pushed in, the bottom surface of the paper box workpiece rests on the two back plates.
8. A forming fixture for a punching machine according to claim 7, characterized in that: The upper connecting plate has two locking bolts in the middle, and the tail of the box cover guide plate is locked to the upper connecting plate by the locking bolts.
9. A forming fixture for a punching machine according to claim 8, characterized in that: The front end of the lid guide plate is curved upwards, and the front end of the lid guide plate presses down to guide the lid of the paper box workpiece.
10. A forming fixture for a punching machine according to claim 9, characterized in that: The lid guide plate has two elongated holes at its tail end. Two locking bolts are used to lock the lid guide plate through the two elongated holes. The lid guide plate can be adjusted to extend and retract forward and backward.