Improved corner protector machine

Abstract

The application relates to the technical field of corner guard installation, in particular to an improved corner guard machine which comprises a placing plate placed in a working position, the upper end of the placing plate is provided with an adjusting device used for placing a paper corner guard, and the upper end of the placing plate is provided with a pressing device used for limiting the paper corner guard. The existing method usually adopts a manual method to wind the paper corner guard into a ring structure and then to set the ring structure on the upper and lower ends of an object, the method is simple to operate, but there is a certain deviation between the paper corner guard and the object, the paper corner guard cannot be tightly attached to the surface of the object, the object is prone to falling off in the moving process, and the installation effect of the paper corner guard is reduced. The extrusion unit of the improved corner guard machine is used for pressing the paper corner guard when the paper corner guard is wound, the paper corner guard after being wound is tightly attached to the object, the paper corner guard is prevented from falling off in the moving process of the object, and the installation effect of the paper corner guard is improved.

Description

Technical Field

[0001] This invention relates to the field of corner protector installation technology, and in particular to an improved corner protector machine. Background Technology

[0002] Paper corner protectors are one of the most popular packaging products internationally, often used to replace wooden packaging and other bulky packaging methods. Paper corner protectors are widely used because they are inexpensive, lightweight, sturdy, and meet environmental protection requirements.

[0003] Paper corner protectors can be used to wrap objects of different shapes, protecting their edges and corners from damage. When installing paper corner protectors on cylindrical objects, the process usually involves manually winding the paper corner protector into a ring structure and then placing it over the top and bottom ends of the object. This method is simple, flexible, and convenient, and can effectively install paper corner protectors on objects of different sizes, making it highly versatile.

[0004] However, when the paper corner protectors are wrapped into a ring and placed on the object using the above method, there is a certain dimensional deviation between the paper corner protectors and the object. This prevents the paper corner protectors from adhering tightly to the surface of the object, and the object is prone to falling off during handling and movement. The paper corner protectors need to be manually reinstalled on the object, which reduces the installation efficiency and protective effect of the paper corner protectors. Summary of the Invention

[0005] Technical problem to be solved: The improved corner protector machine provided by the present invention can solve the problem mentioned above when paper corner protectors are installed on cylindrical objects.

[0006] Technical Solution: To achieve the above objectives, the present invention adopts the following technical solution: an improved corner protector machine, comprising a placement plate placed in the working position, an adjustment device for placing paper corner protectors is provided at the upper end of the placement plate, a pressing device for limiting the paper corner protectors is installed at the upper end of the placement plate, a rotating device is installed in the middle of the placement plate, and an adhesive applicator is provided on the placement plate.

[0007] The upper end of the placement plate has a first sliding groove and a second sliding groove sequentially formed from left to right.

[0008] The adjustment device includes two symmetrical adjustment mechanisms for placing paper corner protectors.

[0009] The pressing device includes two symmetrical pressing mechanisms for pressing the paper corner protectors.

[0010] As a preferred embodiment of the present invention, the adjusting device further includes a first electric push rod installed on the wall of the first sliding groove. The left end of the first electric push rod is equipped with a movable frame that slides with the first sliding groove. The movable frame has a U-shaped structure. Multiple limiting holes for limiting are provided on the front and rear frame walls of the movable frame. Two adjusting frames are symmetrically fitted on the movable frame. Positioning holes are provided on the front and rear frame walls of the adjusting frames. A positioning rod is inserted into both the front and rear positioning holes.

[0011] As a preferred embodiment of the present invention, the adjustment mechanism includes a strip plate installed on the right end of the movable frame, a limit frame installed on the upper end of the strip plate, a rectangular groove opened on the right end of the strip plate, an extrusion unit connected in the rectangular groove, and a support frame installed on the right end of the strip plate near the rear side.

[0012] As a preferred embodiment of the present invention, the extrusion unit includes an extrusion arc plate rotatably connected within the rectangular groove, an extrusion spring is installed between the extrusion arc plate and the rectangular groove, and a rotating roller for pressing paper corner protectors is rotatably connected to the end of the extrusion arc plate away from the rectangular groove.

[0013] As a preferred embodiment of the present invention, the pressing device further includes two support rods symmetrically installed on the upper end of the placement plate. Two vertically symmetrical connecting strips are provided above the two support rods. The connecting strips pass through the movable frame. The lower connecting strip is fixedly installed on the two support rods. A cylindrical rod is installed on the upper left side of the lower connecting strip. The cylindrical rod passes through the upper connecting strip and slides with it.

[0014] As a preferred embodiment of the present invention, the clamping mechanism includes a rotating rod rotatably connected to the right side of the connecting bar, an adjusting screw threaded through the middle of the rotating rod, a movable bar rotatably connected to the end of the adjusting screw, a rectangular frame mounted on the rotating rod on the outer surface of the movable bar, and a clamping unit mounted on the end of the movable bar away from the rotating rod.

[0015] As a preferred embodiment of the present invention, the clamping unit includes a mounting plate mounted on the moving bar, a clamping screw threaded through the middle of the mounting plate, and a clamping plate with a guide post rotatably connected to the end of the clamping screw away from the connecting bar.

[0016] As a preferred embodiment of the present invention, the rotating device includes a drive motor mounted on the upper end of the placement plate, the output shaft of the drive motor being fixedly connected to the lower end of the rotating rod located on the lower side, and a support plate being mounted on the upper end of the rotating rod located on the lower side.

[0017] As a preferred embodiment of the present invention, the adhesive application device includes a second electric push rod installed in the second sliding groove. A movable column is installed at the right end of the second electric push rod. Two symmetrical adhesive application modules are arranged above the movable column. The lower adhesive application module is fixedly connected to the movable column. The upper and lower adhesive application modules are connected by a third electric push rod.

[0018] As a preferred embodiment of the present invention, two positioning posts are symmetrically installed on one end of the adjustment frame near the connecting strip, and ball bearings are provided at the ends of the positioning posts.

[0019] Beneficial effects: 1. The adjustment mechanism and clamping mechanism of the improved corner protector machine provided by the present invention can be adjusted according to the size of the paper corner protector to be installed, thereby increasing the application occasions of the corner protector machine and improving the flexibility of its use.

[0020] 2. The improved corner protector machine provided by the present invention uses a pressing mechanism that can press the end of the paper corner protector onto the object and make the paper corner protector rotate with the object, thereby installing the paper corner protector on the object. The extrusion unit presses the paper corner protector tightly during the winding process, ensuring that the wound paper corner protector is tightly attached to the object, preventing the paper corner protector from falling off during the movement of the object, and improving the installation effect of the paper corner protector.

[0021] 3. The improved corner protector machine provided by this invention uses an adhesive applicator that can apply adhesive to the outside of the paper corner protector, preventing the adhesive on the paper corner protector from adhering to the object, thereby avoiding damage to the object, and facilitating the separation of the paper corner protector from the object after use, ensuring the cleanliness of the object. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.

[0024] Figure 2 This is a second-view three-dimensional structural diagram of the present invention.

[0025] Figure 3 This is the front view of the present invention.

[0026] Figure 4 This is the left view of the present invention.

[0027] Figure 5 This is the present invention. Figure 3 Sectional view of AA.

[0028] Figure 6 This is the present invention. Figure 4 A cross-sectional view of BB.

[0029] Figure 7 This is the present invention. Figure 6 A magnified view of point N in the middle.

[0030] Figure 8 This is a top view of the invention in operation.

[0031] In the diagram: 1. Placement plate; 11. First sliding groove; 12. Second sliding groove; 2. Adjustment device; 21. Adjustment mechanism; 211. Strip plate; 212. Limiting frame; 213. Rectangular groove; 214. Extrusion unit; 2141. Extrusion arc plate; 2142. Extrusion spring; 2143. Rotating roller; 215. Support frame; 25. Electric push rod No. 1; 22. Moving frame; 23. Adjustment frame; 231. Positioning column; 24. Positioning rod; 3. Pressing device; 31 311. Clamping mechanism; 312. Rotating rod; 313. Adjusting screw; 314. Moving bar; 315. Rectangular frame; 316. Clamping unit; 3151. Mounting plate; 3152. Clamping screw; 3153. Clamping plate; 32. Support rod; 33. Connecting bar; 34. Cylindrical rod; 4. Rotating device; 41. Drive motor; 42. Support plate; 5. Glue application device; 51. Electric push rod No. 2; 52. Moving column; 53. Glue application module; 54. Electric push rod No. 3. Detailed Implementation

[0032] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0033] See Figures 1-4 An improved corner protector machine includes a placement plate 1 placed in the working position. The upper end of the placement plate 1 is provided with an adjustment device 2 for placing paper corner protectors. The upper end of the placement plate 1 is provided with a pressing device 3 for limiting the paper corner protectors. The middle part of the placement plate 1 is provided with a rotating device 4. The placement plate 1 is provided with an adhesive applicator 5.

[0034] See Figure 1 The upper end of the placement plate 1 is provided with a first sliding groove 11 and a second sliding groove 12 from left to right.

[0035] See Figure 1 The adjustment device 2 includes two symmetrical adjustment mechanisms 21 for placing paper corner protectors.

[0036] See Figure 5 and Figure 6The adjustment device 2 further includes a first electric push rod 25 installed on the wall of the first sliding groove 11. The left end of the first electric push rod 25 is equipped with a movable frame 22 that slides with the first sliding groove 11. The movable frame 22 has a U-shaped structure. Multiple limiting holes for limiting are opened on the front and rear frame walls of the movable frame 22. Two adjustment frames 23 are symmetrically fitted on the movable frame 22. Positioning holes are opened on the front and rear frame walls of the adjustment frame 23. The two positioning holes are connected to a positioning rod 24.

[0037] See Figure 1 , Figure 5 and Figure 6 In actual operation, in the initial state, the lower adjustment frame 23 is inserted into the corresponding limiting hole on the moving frame 22 through the positioning rod 24, and the upper adjustment frame 23 is placed on the lower adjustment frame 23. According to the height of the object to be installed with paper corner protectors, the upper adjustment frame 23 is manually lifted upwards, and the upper adjustment frame 23 moves on the moving frame 22 to the corresponding height position. Then, the positioning rod 24 passes through the positioning hole on the adjustment frame 23 and is inserted into the corresponding limiting hole on the moving frame 22, thereby limiting the adjustment frame 23. The distance between the two adjustment frames 23 can be changed, so that paper corner protectors can be installed on objects of different heights, increasing the application range of the corner protector machine.

[0038] See Figure 6 The pressing device 3 includes two pressing mechanisms 31 that are symmetrically arranged vertically and used to press the paper corner protectors.

[0039] See Figure 6 The pressing device 3 also includes two support rods 32 symmetrically installed on the upper end of the placement plate 1. Two vertically symmetrical connecting strips 33 are arranged above the two support rods 32. The connecting strips 33 pass through the movable frame 22. The lower connecting strip 33 is fixedly installed on the two support rods 32. A cylindrical rod 34 is installed on the left side of the upper end of the lower connecting strip 33. The cylindrical rod 34 passes through the upper connecting strip 33 and slides with it.

[0040] See Figure 6 Two positioning posts 231 are symmetrically installed on one end of the adjustment frame 23 near the connecting strip 33, and ball bearings are provided at the ends of the positioning posts 231.

[0041] See Figure 6 In specific operation, when adjusting the height of the upper adjustment frame 23, the upper adjustment frame 23 drives the upper connecting strip 33 to slide on the cylindrical rod 34 through two positioning posts 231. The positioning posts 231 support the connecting strip 33. The upper connecting strip 33 drives the upper pressing mechanism 31 to move to the corresponding height. After positioning, the upper adjustment frame 23 positions the upper connecting strip 33.

[0042] See Figure 6 and Figure 7 The clamping mechanism 31 includes a rotating rod 311 rotatably connected to the right side of the connecting bar 33. An adjusting screw 312 is threaded through the middle of the rotating rod 311. A moving bar 313 is rotatably connected to the end of the adjusting screw 312. A rectangular frame 314 is fitted on the outer surface of the moving bar 313 and mounted on the rotating rod 311. A clamping unit 315 is installed at the end of the moving bar 313 away from the rotating rod 311.

[0043] See Figure 6 The rotating device 4 includes a drive motor 41 mounted on the upper end of the placement plate 1. The output shaft of the drive motor 41 is fixedly connected to the lower end of the rotating rod 311 located on the lower side. A support plate 42 is mounted on the upper end of the rotating rod 311 located on the lower side.

[0044] See Figures 6-8 In actual operation, the required object is placed on the support plate 42 by the existing mechanical claw. The initial pressing unit 315 is close to the moving frame 22. According to the radius of the object, the adjusting screw 312 is manually rotated. The adjusting screw 312 drives the pressing unit 315 to move through the moving bar 313, thereby adjusting the pressing position of the pressing unit 315. This allows for pressing of objects of different radii, improving the flexibility of the equipment.

[0045] See Figure 5 and Figure 6 The adjustment mechanism 21 includes a strip plate 211 installed on the right end of the moving frame 22. A limit frame 212 is installed on the upper end of the strip plate 211. A rectangular groove 213 is opened on the right end of the strip plate 211. An extrusion unit 214 is connected in the rectangular groove 213. A support frame 215 is installed on the right end of the strip plate 211 near the rear side.

[0046] See Figure 5 , Figure 6 and Figure 8 In practice, after the object is placed, the two paper corner protectors are manually inserted into the upper and lower support frames 215. The paper corner protectors are right-angled, and the vertical section of the paper corner protector is in close contact with the strip plate 211. Then, the first electric push rod 25 is activated. The first electric push rod 25 drives the two adjustment frames 23 to move through the moving frame 22. The adjustment frames 23 drive the paper corner protectors to move towards the object and in close contact with it through the strip plate 211 and the support frame 215. The adjustment frames 23 move on the connecting strip 33 through the ball bearings on the positioning post 231.

[0047] See Figure 5The extrusion unit 214 includes an extrusion arc plate 2141 rotatably connected in the rectangular groove 213, an extrusion spring 2142 is installed between the extrusion arc plate 2141 and the rectangular groove 213, and a rotating roller 2143 for rolling paper corner protectors is rotatably connected to one end of the extrusion arc plate 2141 away from the rectangular groove 213.

[0048] See Figure 3 and Figure 7 The clamping unit 315 includes a mounting plate 3151 mounted on the moving bar 313. A clamping screw 3152 is threaded through the middle of the mounting plate 3151. A clamping plate 3153 with a guide post is rotatably connected to the end of the clamping screw 3152 away from the connecting bar 33.

[0049] See Figures 5-8 In actual operation, after the paper corner protector is in close contact with the object, the upper and lower clamping screws 3152 are manually rotated. The clamping screws 3152 drive the clamping plate 3153 to press the horizontal section of the paper corner protector against the end of the object. The clamping plate 3153 is equipped with an anti-slip pad to prevent relative sliding between the object and the paper corner protector during subsequent rotation. The connecting strip 33 is located within the limiting frame 212, which limits the connecting strip 33 and provides support for the upper clamping plate 3153. Then, the drive motor 41 is started, and the drive motor 41 drives the supporting plate 42 through the rotating rod 311 located on the lower side. The object rotates, and the supporting plate 42 carries the object to rotate. The rotating object drives the upper and lower pressure plates 3153 to rotate through the upper and lower paper corner protectors. The upper pressure plate 3153 drives the upper rotating rod 311 to rotate through the moving bar 313 and the adjusting screw 312. The object and the upper and lower pressure plates 3153 rotate at the same time and wrap the paper corner protectors around the upper and lower ends of the object. The compression spring 2142 compresses the paper corner protectors during the winding process through the rotating roller 2143 on the compression arc plate 2141 to ensure that the paper corner protectors can stick tightly to the object and prevent the paper corner protectors from falling off after installation.

[0050] See Figure 6 The adhesive applicator 5 includes a second electric push rod 51 installed in the second sliding groove 12. A movable column 52 is installed on the right end of the second electric push rod 51. Two symmetrical adhesive applicators 53 are arranged above the movable column 52. The lower adhesive applicator 53 is fixedly connected to the movable column 52. The upper and lower adhesive applicators 53 are connected by a third electric push rod 54.

[0051] See Figures 5-7In specific operation, the gluing module 53 is an existing gluing device. According to the radius of the object, the second electric push rod 51 is activated. The second electric push rod 51 drives the two gluing modules 53 to the working position through the moving column 52. Then, according to the height of the object, the third electric push rod 54 is activated. The third electric push rod 54 adjusts the distance between the two gluing modules 53. When the end of the paper corner protector moves to the gluing module 53, the gluing module 53 applies glue to the outside of the end of the paper corner protector and then stops applying glue. After the paper corner protector is wrapped around the object once, the end of the paper corner protector is in close contact with the front end of the paper corner protector. The glue at the front end of the paper corner protector adheres to the front and end of the paper corner protector, thereby wrapping the paper corner protector around the object, avoiding damage to the object, and facilitating the separation of the paper corner protector from the object after use, ensuring the cleanliness of the object. Then, the object is removed from the support plate 42, and the installation of the paper corner protector is completed.

[0052] When wrapping paper corner protectors: S1: Manually lift the upper adjustment frame 23 upwards. The upper adjustment frame 23 moves to the corresponding height position on the moving frame 22. Then, the positioning rod 24 passes through the positioning hole on the adjustment frame 23 and is inserted into the corresponding limiting hole on the moving frame 22 to limit the adjustment frame 23. At the same time, the upper adjustment frame 23 drives the upper connecting strip 33 to slide on the cylindrical rod 34 to the working position through the two positioning pins 231.

[0053] S2: The object is placed on the support plate 42 by the existing mechanical claw. The clamping unit 315 in the initial state is close to the moving frame 22. According to the radius of the object, the adjusting screw 312 is manually rotated. The adjusting screw 312 drives the clamping unit 315 to move through the moving bar 313.

[0054] S3: Manually insert the two paper corner protectors into the upper and lower support frames 215. Then, start the first electric push rod 25. The first electric push rod 25 drives the two adjustment frames 23 to move through the moving frame 22. The adjustment frames 23 drive the paper corner protectors to move towards the object and fit tightly with it through the strip plate 211 and the support frame 215. Then, manually rotate the upper and lower clamping screws 3152. The clamping screws 3152 drive the clamping plate 3153 to press the horizontal section of the paper corner protector onto the end of the object.

[0055] S4: Based on the radius of the object, activate the second electric push rod 51. The second electric push rod 51 drives the two glue application modules 53 to move to the working position via the moving column 52. Then, based on the height of the object, activate the third electric push rod 54. The third electric push rod 54 adjusts the distance between the two glue application modules 53.

[0056] S5: The drive motor 41 drives the support plate 42 to rotate via the rotating rod 311 located on the lower side. The support plate 42 carries the object to rotate. The rotating object drives the upper and lower pressure plates 3153 to rotate via the upper and lower paper corner protectors. After the paper corner protector wraps around the object once, the end of the paper corner protector is in close contact with the front end of the paper corner protector. The adhesive at the front end of the paper corner protector bonds the front and end of the paper corner protector, thereby wrapping the paper corner protector around the object. Finally, the object is removed from the support plate 42, and the paper corner protector installation is completed.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An improved corner protector, comprising a placement plate positioned at the working location, characterized in that: The upper end of the placement plate is equipped with an adjustment device for placing paper corner protectors, the upper end of the placement plate is equipped with a pressing device for limiting the paper corner protectors, the middle of the placement plate is equipped with a rotating device, and the placement plate is equipped with an adhesive applicator; wherein: The upper end of the placement plate is provided with a first sliding groove and a second sliding groove from left to right; The adjustment device includes two symmetrical adjustment mechanisms and a moving frame for placing paper corner protectors; The pressing device includes two symmetrical pressing mechanisms for pressing the paper corner protectors; The adjustment mechanism includes a strip plate installed on the right end of the movable frame. A limit frame is installed on the upper end of the strip plate. A rectangular groove is opened on the right end of the strip plate. An extrusion unit is connected in the rectangular groove. A support frame is installed on the right end of the strip plate near the rear side. The pressing device also includes two support rods symmetrically installed on the upper part of the placement plate, and two symmetrical connecting strips are provided above the two support rods. The clamping mechanism includes a rotating rod rotatably connected to the right side of the connecting bar, an adjusting screw threaded through the middle of the rotating rod, a movable bar rotatably connected to the end of the adjusting screw, a rectangular frame mounted on the rotating rod sleeved on the outer surface of the movable bar, and a clamping unit mounted on the end of the movable bar away from the rotating rod. The rotating device includes a drive motor mounted on the upper end of the placement plate. The output shaft of the drive motor is fixedly connected to the lower end of the rotating rod located on the lower side. A support plate is installed on the upper end of the rotating rod located on the lower side.

2. An improved corner protector according to claim 1, characterized in that: The adjustment device also includes a first electric push rod installed on the wall of the first sliding groove. The left end of the first electric push rod is equipped with a movable frame that slides with the first sliding groove. The movable frame has a U-shaped structure. Multiple limiting holes for limiting are opened on the front and rear frame walls of the movable frame. Two adjustment frames are symmetrically fitted on the movable frame. Positioning holes are opened on the front and rear frame walls of the adjustment frames. A positioning rod is inserted into the two positioning holes.

3. An improved corner protector according to claim 1, characterized in that: The extrusion unit includes an extrusion arc plate rotatably connected within the rectangular groove, an extrusion spring installed between the extrusion arc plate and the rectangular groove, and a rotating roller for pressing paper corner protectors rotatably connected to the end of the extrusion arc plate away from the rectangular groove.

4. An improved corner protector according to claim 2, characterized in that: A connecting strip runs through the movable frame. The lower connecting strip is fixedly installed on two support rods. A cylindrical rod is installed on the upper left side of the lower connecting strip. The cylindrical rod passes through the upper connecting strip and slides with it.

5. An improved corner protector according to claim 4, characterized in that: The clamping unit includes a mounting plate installed on the moving bar. A clamping screw is threaded through the middle of the mounting plate, and a clamping plate with a guide post is rotatably connected to the end of the clamping screw away from the connecting bar.

6. An improved corner protector according to claim 1, characterized in that: The adhesive application device includes a second electric push rod installed in the second sliding groove. A movable column is installed on the right end of the second electric push rod. Two symmetrical adhesive application modules are arranged above the movable column. The lower adhesive application module is fixedly connected to the movable column. The upper and lower adhesive application modules are connected by a third electric push rod.

7. An improved corner protector according to claim 4, characterized in that: Two positioning posts are symmetrically installed on one end of the adjustment frame near the connecting strip, and ball bearings are provided at the ends of the positioning posts.

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