Punching device for hanging calendar

Abstract

A punch device of a wall calendar, comprising a base, a front support plate and a rear support plate are arranged on the upper part of the base, sliding supports are fixed on the two ends of the rear support plate, a punch mechanism is arranged between the sliding supports, the punch mechanism comprises a punch holder and a punch stop plate, a punch slot is arranged on the side wall surface of the punch holder, a first stop column is arranged in the punch slot, a positioning slot for positioning the punch is formed between the first stop column and the side wall surface of the punch slot, the punch is pre-installed through the positioning cooperation of the punch and the positioning slot, a plurality of stop plate positioning columns are arranged on the punch holder, a second stop column and a positioning hole are arranged on the punch stop plate, the punch stop plate is pre-positioned through the positioning hole, the punch stop plate is fixed on the punch holder through a stop plate screw, after being fixed, the side wall surface of the punch stop plate is pressed against the fixed head plane of the punch head, and a buckle structure is formed between the second stop column and the first stop column and is tightly pressed against the step column. The punch is convenient to adjust, the punch is fixed through the stop plate screw during installation, and the installation work of the punch is reduced.

Description

Technical Field

[0001] This utility model relates to the field of calendar production technology, and in particular to a punching device for calendars. Background Technology

[0002] Wall calendars are typically made of multiple loose-leaf sheets bound together. During the binding process, holes usually need to be punched in the loose-leaf sheets. Existing punching devices require installing punches and positioning the loose-leaf sheets for punching. When installing the punches, each punch needs to be fixed individually with screws. When there are many loose-leaf holes in the calendar sheets, such as 10 to 25 holes, the workload of installing the punches is quite large. Moreover, in existing punching devices, the distance between the punch holes on the punch holder is fixed and cannot be adjusted, making it impossible to punch loose-leaf sheets of different sizes and punching spacing.

[0003] Therefore, existing punching devices are time-consuming and labor-intensive to install the punches, and the punches cannot be adjusted according to the spacing of the loose-leaf holes of different sizes of calendar pages, making them unsuitable for punching loose-leaf pages of different types of calendars. Summary of the Invention

[0004] The purpose of this utility model is to provide a punching device for wall calendars, which solves the problems of quick installation of multiple punches and convenient adjustment of the distance of the loose-leaf holes, so as to adapt to the punching problem of loose-leaf paper of different types of wall calendars.

[0005] To achieve the above objectives, this utility model provides the following: a punching device for a calendar, comprising a base, the base including a pair of supports connected together at their lower parts via a base plate, and a front support plate and a rear support plate at their upper parts. Sliding supports are fixed to both ends of the rear support plate, and a movable punching mechanism is provided between the sliding supports. The punching mechanism includes a punch holder and a punch baffle. A punch groove is formed on the side wall surface of the punch holder, and a first stop post is provided at the bottom edge of the punch groove. A positioning groove for positioning the punch is formed between the first stop post and the side wall surface of the punch groove. The punch includes a fixed head, and a step is provided at the bottom of the fixed head. The column has a punch head at its bottom. The punch head is pre-installed by positioning the fixed head and the positioning groove. The punch seat has several baffle positioning posts on the edge of the side wall surface of the punch groove. The punch baffle has a second baffle corresponding to the first baffle and a positioning hole corresponding to the baffle positioning post. The punch baffle is pre-positioned through the positioning hole and fixed to the punch seat by baffle screws. After fixing, the side wall surface of the punch baffle presses against the fixed head plane of the punch, and the second baffle and the first baffle form a snap-fit ​​structure to press against the stepped column. In this invention, the punch can be initially pre-positioned through the positioning groove. During pre-positioning, the punch is not completely fixed. The punch baffle and punch holder are pre-connected by the cooperation of the baffle positioning hole and the baffle positioning post. Although the punch can be pre-positioned in the positioning groove, the positioning groove only fixes the punch in the vertical cutting direction, not in the left and right directions. Therefore, the distance between the punches can still be adjusted by sliding them against each other. Since the punch is not completely fixed after pre-connection, a caliper corresponding to the hinge size can be inserted into the bottom of the punch holder. After the caliper slots are engaged with the punch heads one by one, the distance between the punches can be adjusted in the above way. After the distance is adjusted, the cutting baffle is threadedly locked and fixed to the punch holder by the baffle screw.

[0006] Furthermore, the punch holder has a connecting screw hole on both sides, each connecting screw hole being fixedly connected to one end of a lifting screw. Both ends of the lifting screw are threaded, and the other ends of the two lifting screws pass through a rear support plate and are fixedly connected to a lifting plate. A lifting cylinder is located below the lifting plate, and the lifting cylinder is fixed to the base plate. The lifting plate is connected to the telescopic rod end of the lifting cylinder. Through the lifting cylinder, the lifting plate rises or falls, causing the punch holder to move up and down. The punching mechanism, through the up and down movement of the punch holder, drives the punch to move up and down, thereby achieving the punching of the loose-leaf paper of the calendar below the punch.

[0007] Furthermore, a pair of lifting cylinders are provided, and the lifting cylinders are either pneumatic cylinders or hydraulic cylinders.

[0008] Furthermore, a punching seat is provided below the punch of the punching mechanism. The punching seat includes a punching plate fixed to the rear support plate. The punching plate has a receiving groove for positioning and placing loose-leaf paper. The surface of the punching plate has a punching groove corresponding to the punch head, and the punching groove passes through the upper and lower edges of the receiving groove. The receiving groove is used to place the punched end of the loose-leaf paper of the calendar. During punching, the punch is pressed down by the punching seat, causing the punch to pass through the receiving groove from the upper punching groove to the lower punching groove, thereby realizing the punching of the loose-leaf paper of the calendar.

[0009] Furthermore, the receiving groove is provided with a second adjusting baffle for adjusting and positioning the front end of the loose-leaf paper. The second adjusting baffle is movable and has a threaded connection end on its back. The receiving groove has a connecting hole with a connecting screw. The connecting screw passes through the connecting hole from the rear end of the perforated plate and is threadedly connected to the threaded connection end. A tension spring is fitted on the connecting screw. By means of the tension spring, the connecting screw pulls the second adjusting baffle towards the inside of the receiving groove. The receiving groove has a pair of adjusting screw holes, which are symmetrically arranged on both sides of the connecting hole. A second adjusting screw is provided in each adjusting screw hole. The second adjusting screw is threadedly connected to the adjusting screw hole and extends out of the adjusting screw hole, protruding onto the inner wall of the receiving groove. The second adjusting screw abuts against the second adjusting baffle. The protruding length of the second adjusting screw on the inner wall of the receiving groove enables the second adjusting baffle to adjust and position the front end of the loose-leaf paper.

[0010] Furthermore, the connecting hole has a recessed hole on one side of the receiving groove for placing the threaded connection end.

[0011] Furthermore, the sliding support is provided with a sliding groove for the punch holder to slide up and down.

[0012] Furthermore, a sliding baffle is provided on the end face of the sliding groove, and a limiting rod is provided between the sliding baffle and the rear support plate. A buffer spring is sleeved on the limiting rod. One end of the buffer spring is supported on the rear support plate, and the other end abuts against the bottom of the punch holder. The punch holder has limiting holes on both sides corresponding to the limiting rod. During the upward or downward movement of the punch holder, the limiting rod achieves sliding limitation, ensuring accurate punching of the loose-leaf paper by the punch head. Furthermore, the buffer spring improves the stability of the punching mechanism.

[0013] Furthermore, the front support plate is provided with a pair of adjustment slots, and a first adjustment baffle is installed on the adjustment slots. The first adjustment baffle is fixedly adjustable by a first adjustment screw.

[0014] Furthermore, the rear support plate is provided with a feeding trough corresponding to the punching groove, and a collecting hopper is provided at the bottom of the feeding trough. Waste paper generated after the loose-leaf paper is punched by the punch head falls into the collecting hopper through the feeding trough, and the waste paper is collected by the collecting hopper and falls into the external collecting frame.

[0015] This invention allows the punching device to be adjusted according to the number of hinge holes and the distance between them on the calendar. During pre-positioning, the distance between the punches is adjusted using calipers corresponding to the hinge hole specifications of the calendar. This allows for precise adjustment of the distance between multiple punches at once. After adjusting the hole spacing, the punches are then fixed together using baffle screws. Therefore, this invention makes punch adjustment convenient, and the use of a few baffle screws for fixing the punches greatly reduces the installation work.

[0016] This invention utilizes a lifting screw driven by a lifting cylinder to achieve the up-and-down movement of the punching mechanism. The loose-leaf paper of the calendar is punched during the up-and-down movement of the punching mechanism. The structure is simple and the punching control is convenient. The punching paper scraps generated after punching are collected through the feeding groove and collection hopper of the rear support plate, ensuring that the punching device is clean and tidy.

[0017] This invention utilizes an adjustable first adjustment baffle to effectively adjust the starting position of the loose-leaf paper on the calendar. By using a movable second adjustment baffle, the second adjustment screw extends spirally along the inner wall of the receiving groove to adjust and position the front end of the loose-leaf paper, thereby ensuring the proper positioning of the loose-leaf paper below the punching mechanism. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a punching device.

[0019] Figure 2 This is one of the schematic diagrams of the internal three-dimensional structure of a punching device.

[0020] Figure 3 This is the second schematic diagram of the internal three-dimensional structure of the punching device.

[0021] Figure 4 This is a three-dimensional structural diagram of the rear support plate.

[0022] Figure 5 This is a three-dimensional structural diagram of the punching mechanism.

[0023] Figure 6This is a three-dimensional exploded view of the punching mechanism.

[0024] Figure 7 This is a three-dimensional structural diagram of the punch baffle.

[0025] Figure 8 This is a schematic diagram of the three-dimensional structure of the punch.

[0026] Figure 9 This is a three-dimensional structural diagram of the punch holder.

[0027] Figure 10 This is a three-dimensional exploded view of the punch holder.

[0028] Figure 11 for Figure 9 Top view.

[0029] Figure 12 for Figure 11 Schematic diagram of cross section in the AA direction.

[0030] Figure 13 This is a schematic diagram of the three-dimensional structure of a caliper.

[0031] Figure 14 A three-dimensional structural diagram of the positioning punch.

[0032] Wherein: 1-base, 11-support, 12-front support plate, 121-adjusting groove, 13-rear support plate, 131-feeding groove, 132-collecting hopper, 133-clearing hole, 14-base plate, 15-sliding support, 151-sliding groove, 16-sliding baffle, 17-first adjusting baffle, 18-first adjusting screw, 2-punching mechanism, 21-punch holder, 211-connecting screw hole, 212-limiting hole, 213-punch groove, 214-first stop post, 215-baffle positioning post, 216-baffle fixing hole, 22-punch baffle, 221-connecting... 222-Second stop post, 223-Baffle positioning hole, 23-Punch, 231-Punch head, 232-Fixing head, 24-Baffle screw, 3-Punching seat, 31-Punching plate, 311-Accommodation groove, 312-Punching groove, 313-Connecting hole, 314-Adjusting screw hole, 315-Sunk hole, 32-Second adjusting baffle, 321-Threaded connection end, 33-Connecting screw, 34-Tension spring, 35-Second adjusting screw, 4-Lifting screw, 5-Lifting cylinder, 6-Lifting plate, 7-Limit rod, 8-Buffer spring, 9-Gauge, 91-Gauge groove. Detailed Implementation

[0033] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0034] A punching device for a wall calendar, as shown in the reference. Figure 1 , Figure 2 , Figure 3 The machine includes a base 1, which includes a pair of supports 11. The lower parts of the supports 11 are connected together by a base plate 14. The upper part of the supports 11 is provided with a front support plate 12 and a rear support plate 13. The two ends of the rear support plate 13 are fixed with sliding supports 15. A movable punching mechanism 2 is provided between the sliding supports 15.

[0035] Reference Figure 5 , Figure 6 , Figure 7 , Figure 8 The punching mechanism 2 includes a punch holder 21 and a punch baffle 22. A punch groove 213 is formed on the side wall surface of the punch holder 213. A first stop post 214 is provided at the bottom edge of the punch groove 213, forming a positioning groove for positioning the punch 23 between the first stop post 214 and the side wall surface of the punch groove 213. The punch 23 includes a fixing head 232, with a stepped post 233 at the bottom of the fixing head 232. A punch head 231 is provided at the bottom of the stepped post 233. The punch 23 passes through the fixing head 232. 2. Pre-installation is achieved through positioning and engagement with the positioning groove. To achieve pre-connection of the punch holder 21 to the punch baffle 22, the punch holder 21 has several baffle positioning posts 215 located on the edge of the side wall surface of the punch groove 213. The punch baffle 22 is provided with a second stop post 222 corresponding to the first stop post 214 and a positioning hole 223 corresponding to the baffle positioning post 215. The punch baffle 22 is pre-positioned through the positioning hole 223. After the punch baffle 22 is pre-positioned, it can be fixed to the punch holder by the baffle screw 24. The corresponding baffle fixing hole 216 on 21 is completely fixed. After fixing, the side wall surface of the punch baffle 22 presses against the plane of the fixing head 232 of the punch 23, and the second stop post 222 and the first stop post 214 form a snap-fit ​​structure to press and adhere to the step post 233. The specific installation of the punch 23 is as follows: First, place the punch 23 in the positioning groove for preliminary positioning. During the preliminary positioning, the punch 23 is not completely fixed. The punch baffle 21 is fixed by the cooperation of the baffle positioning hole 223 and the baffle positioning post 215. 2. Pre-connection with punch holder 21: Although punch 23 can be pre-positioned in the positioning groove, the positioning groove only fixes punch 23 in the vertical cutting direction, not completely in the left-right direction. Therefore, the distance between punches 23 can still be adjusted by sliding them against each other. Since the pre-connected punch 23 is not completely fixed, a retainer 9 corresponding to the hinge size can be inserted under punch holder 21. The structure of retainer 9 is shown in [reference needed]. Figure 13 and Figure 14The gauge 9 is provided with a slot 91, which is used to engage the punch head 231 of the punch 23. The distance between the slots 91 is the interval between the hinge holes. After the slots 91 of the gauge 9 engage the punch heads 231 of the punch 23 one by one, the punches 23 adjust the distance between each other in the above way. After the distance is adjusted, the punching baffle 22 is threaded and locked from the connection hole 221 through the baffle fixing hole 216 on the punch holder 21 using the baffle screw 24.

[0036] The punch holder 21 of the punching mechanism 2 is movable up and down. A sliding groove 151 is provided on the sliding support 15 for the punch holder 21 to slide up and down. A sliding baffle 16 is provided on the end face of the sliding groove 151. A limiting rod 7 is provided between the sliding baffle 16 and the rear support plate 13. Limiting holes 212 corresponding to the limiting rod 7 are provided on both sides of the punch holder 21. Thus, the punch holder 21 is slidably limited by the limiting rod 7 during the rising or falling process, which ensures the accurate punching of the punch head 231 on the loose-leaf paper. At the same time, in order to improve the stability of the punching mechanism 2, a buffer spring 8 is sleeved on the limiting rod 7. One end of the buffer spring 8 is supported on the rear support plate 13, and the other end is pressed against the bottom of the punch holder 21. The buffer spring 8 ensures that the punching mechanism 2 is stable when punching up and down.

[0037] The punch holder 21 has a connecting screw hole 211 on both sides. Each connecting screw hole 211 is fixedly connected to one end of the lifting screw 4. The two ends of the lifting screw 4 are threaded. The other ends of the two lifting screws 4 pass through the clearance hole 133 of the rear support plate 13 and are fixedly connected to the lifting plate 6. The lifting cylinder 5 is located below the lifting plate 6 and is fixed to the base plate 14. The lifting plate 6 is connected to the telescopic rod end of the lifting cylinder 5. The lifting plate 6 is raised or lowered by the lifting cylinder 5, which drives the punch holder 21 to move up and down. The punching mechanism 2 drives the punch 23 to move up and down through the up and down movement of the punch holder 21, thereby realizing the punching of the loose-leaf paper of the calendar below the punch 23. In order to better implement the lifting effect of the punch holder 21, a pair of lifting cylinders 5 are provided. The lifting cylinders 5 are either pneumatic cylinders or hydraulic cylinders, preferably hydraulic cylinders. The lifting cylinders 5 drive the punching mechanism 2 to move up and down. The structure is simple and easy to control.

[0038] In this embodiment, a punching seat 3 is provided below the punch 23 of the punching mechanism 2, as shown in the figure. Figure 9 , Figure 10 , Figure 11 , Figure 12The punching base 3 includes a punching plate 31 fixed on the rear support plate 13. The punching plate 31 has a receiving groove 311 for positioning and placing loose-leaf paper. The surface of the punching plate 31 has a punching groove 312 corresponding to the punch head 231. The punching groove 312 passes through the upper and lower edges of the receiving groove 311. The receiving groove 311 is used to place the punched end of the loose-leaf paper of the calendar. During punching, the punch head 231 presses down, causing the punch 23 to pass through the receiving groove 311 from the upper end to the lower end of the punching groove 312, thereby achieving the hanging... The perforated plate 311 has a second adjusting baffle 32 for adjusting and positioning the front end of the loose-leaf paper. The second adjusting baffle 32 is movable and has a threaded connection end 321 on its back. The receiving groove 311 has a connecting hole 313 with a connecting screw 33. The connecting screw 33 passes through the connecting hole 313 from the rear end of the perforated plate 31 and is threaded to the threaded connection end 321, thereby realizing the connection between the second adjusting baffle 32 and the connecting screw 33. A tension spring 34 is fitted onto the connecting screw 33. After the tension spring 34 is installed, the connecting screw 33 pulls the second adjusting baffle 32 towards the inward side of the receiving groove 311. At the same time, the receiving groove 311 has a pair of adjusting screw holes 314, which are symmetrically arranged on both sides of the connecting hole 313. A second adjusting screw 35 is installed in the adjusting screw hole 314. The second adjusting screw 35 is threadedly connected to the adjusting screw hole 314, and the second adjusting screw 35 extends out of the adjusting screw hole 314. The second adjusting screw 35 extends and protrudes from the inner wall of the receiving groove 311 and abuts against the second adjusting baffle 32. The second adjusting baffle 32 adjusts and positions the front end of the loose-leaf paper by means of the protruding length of the second adjusting screw 35 extending from the inner wall of the receiving groove 311. In addition, the connecting hole 313 has a recessed hole 315 on one side of the receiving groove 311 for placing the threaded connection end 321. This can prevent the receiving groove 311 from not being too deep and can improve the strength of the punching plate 31 at the punching groove 312.

[0039] In this embodiment, the front support plate 12 is provided with a pair of adjustment slots 121, and a first adjustment baffle 17 is installed on the adjustment slots 121. The first adjustment baffle 17 is fixed in an adjustable manner by the first adjustment screw 18. With the adjustable first adjustment baffle 17, the starting position on the loose-leaf paper of the calendar can be adjusted well. At the same time, the movable second adjustment baffle 32 is used to adjust and position the front end of the loose-leaf paper, thereby ensuring the positioning and placement of the loose-leaf paper below the punching mechanism 2.

[0040] In this embodiment, refer to Figure 4The rear support 13 is provided with a feeding trough 131 corresponding to the punching groove 312. The bottom of the feeding trough 131 is provided with a collecting hopper 132. The waste paper generated after the loose-leaf paper is punched by the punch head 231 falls into the collecting hopper 132 through the feeding trough 131. The waste paper is collected by the collecting hopper 132 and falls into the external collecting frame.

[0041] The above embodiments merely illustrate the implementation of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A punching device for a wall calendar, comprising a base, the base including a pair of supports, the lower parts of the pair of supports being connected together via a base plate, characterized in that: The upper part of the support is provided with a front support plate and a rear support plate. Sliding supports are fixed at both ends of the rear support plate. A movable punching mechanism is provided between the sliding supports. The punching mechanism includes a punch holder and a punch baffle. A punch groove is formed on the side wall surface of the punch holder. A first stop post is provided at the bottom edge of the punch groove. A positioning groove for positioning the punch is formed between the first stop post and the side wall surface of the punch groove. The punch includes a fixed head. A stepped post is provided at the bottom of the fixed head. A punch head is provided at the bottom of the stepped post. The punch connects to the positioning groove via the fixed head. The positioning and matching achieve pre-installation. The punch holder has a number of baffle positioning posts on the edge of the side wall surface of the punch groove. The punch baffle has a second baffle corresponding to the first baffle and a positioning hole corresponding to the baffle positioning post. The punch baffle is pre-positioned through the positioning hole. The punch baffle is fixed to the punch holder by baffle screws. After fixing, the side wall surface of the punch baffle is pressed against the fixing head plane of the punch, and the second baffle and the first baffle form a snap-fit ​​structure to press and adhere to the step post.

2. The punching device for a calendar according to claim 1, characterized in that: The punch holder has a connecting screw hole on both sides, and each connecting screw hole is fixedly connected to one end of a lifting screw. Both ends of the lifting screw are threaded. The other ends of the two lifting screws pass through the rear support plate and are fixedly connected to a lifting plate. A lifting cylinder is provided below the lifting plate. The lifting cylinder is fixed to the base plate, and the lifting plate is connected to the telescopic rod end of the lifting cylinder. Through the lifting cylinder, the lifting plate is raised or lowered, which drives the punch holder to move up and down.

3. The punching device for a calendar according to claim 2, characterized in that: The lifting cylinder is provided in pairs, and the lifting cylinder is either a pneumatic cylinder or a hydraulic cylinder.

4. The punching device for a calendar according to claim 1, characterized in that: The punching mechanism has a punching seat below the punch, which includes a punching plate fixed on the rear support plate. The punching plate has a receiving groove for positioning and placing loose-leaf paper, and the surface of the punching plate has a punching groove corresponding to the punch head. The punching groove passes through the upper and lower sides of the receiving groove.

5. The punching device for a calendar according to claim 4, characterized in that: The receiving groove is provided with a second adjusting baffle for adjusting and positioning the front end of the loose-leaf paper. The second adjusting baffle is movable and has a threaded connection end on its back. The receiving groove has a connecting hole with a connecting screw. The connecting screw passes through the connecting hole from the rear end of the perforated plate and is threadedly connected to the threaded connection end. A tension spring is fitted on the connecting screw, which pulls the second adjusting baffle towards the inside of the receiving groove. The receiving groove has a pair of adjusting screw holes, which are symmetrically arranged on both sides of the connecting hole. A second adjusting screw is provided in each adjusting screw hole and is threadedly connected to the adjusting screw hole. The second adjusting screw extends out of the adjusting screw hole and protrudes onto the inner wall of the receiving groove. The second adjusting screw abuts against the second adjusting baffle. The protruding length of the second adjusting screw on the inner wall of the receiving groove enables the second adjusting baffle to adjust and position the front end of the loose-leaf paper.

6. The punching device for a calendar according to claim 5, characterized in that: The connecting hole has a recessed hole on one side of the receiving groove for placing the threaded connection end.

7. The punching device for a calendar according to claim 1, characterized in that: The sliding support is provided with a sliding groove for the punch holder to slide up and down.

8. The punching device for a calendar according to claim 7, characterized in that: A sliding baffle is provided on the end face of the sliding groove, and a limiting rod is provided between the sliding baffle and the rear support plate. A buffer spring is sleeved on the limiting rod. One end of the buffer spring is supported on the rear support plate, and the other end is pressed against the bottom of the punch seat. The punch seat has limiting holes on both sides corresponding to the limiting rod.

9. The punching device for a calendar according to claim 1, characterized in that: The front support plate is provided with a pair of adjustment slots, and a first adjustment baffle is installed on the adjustment slots. The first adjustment baffle is fixedly adjustable by a first adjustment screw.

10. A punching device for a calendar according to claim 4, characterized in that: The rear support plate is provided with a feeding trough corresponding to the punching groove, and the bottom of the feeding trough is provided with a collecting hopper.

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