Cam, adhesive breaking cam mechanism and adhesive binding machine

Abstract

The utility model provides a cam, an adhesive breaking cam mechanism and an adhesive binding machine. The adhesive breaking cam mechanism of the adhesive binding machine comprises a main shaft and a cam body rotating around the main shaft, the cam body comprises a left planet carrier cam and a right planet carrier cam which are spliced with each other; and the left planet carrier cam and the right planet carrier cam are symmetrically provided with star gear transmission mechanisms which respectively drive the left planet carrier cam and the right planet carrier cam to rotate around the main shaft so as to adjust the size of the included angle between the left planet carrier cam and the right planet carrier cam. And the two separated and combined glue breaking cams naturally form an included angle, so that the effective glue supply length of the glue wheel can be controlled, and the change of the gluing length of books with different specifications can be met. The included angle of the cam can be kept unchanged, the gluing length of the book is constant, and the top margin and the bottom margin of the book are stably broken.

Description

Technical Field

[0001] The invention relates to a cam, a glue-breaking cam mechanism and a glue binding machine. Background Art

[0002] In the post-press binding industry, books of different specifications have different corresponding gluing lengths when passing through the glue pot, such as Figure 1 As shown in the figure: the book clamp of the glue binder clamps the book and passes directly above the glue pot 400, and the hot melt glue on the surface of the glue wheel assembly 200 will be transferred to the book. The rotation of the glue wheel of the glue wheel assembly 200 can attach the hot melt glue on the glue pot 400 to the surface of the glue wheel. The highest point of the cam in the glue-cutting cam assembly 100 lifts the roller of the glue scraping swing arm, driving the glue scraping blade of the glue scraping assembly 300 to press down, thereby realizing that the glue scraping blade cuts off the hot melt glue on the surface of the glue wheel, achieving the purpose of glue cutting.

[0003] If the gluing length is too short or too long, it will affect the quality of the book. At present, the glue binding machine needs to stop to adjust the angle of the glue cutting cam, observe the scale line and adjust it manually. The adjustment accuracy is difficult to grasp and it takes a lot of time. Summary of the invention

[0004] In order to adjust the gluing length of books without stopping the machine, the present invention provides a cam, a glue-breaking cam mechanism and a glue binding machine, so that an operator can control the gluing length of the book by adjusting the angle of the cam through a touch screen to control a motor, thereby reducing quality problems caused by a short or long gluing length of the book, and to a certain extent reducing the time for modifying parameters, increasing the machine running time, and solving the problem of modifying the gluing length, thereby increasing production and achieving a win-win situation in terms of production and quality.

[0005] The technical solution adopted by the present invention to achieve its technical purpose is: a cam, including a main shaft and a cam wheel body rotating around the main shaft; the cam wheel body includes a left planetary carrier cam and a right planetary carrier cam spliced ​​to each other; the left planetary carrier cam and the right planetary carrier cam are symmetrically arranged with a planetary gear transmission mechanism that drives the left planetary carrier cam and the right planetary carrier cam to rotate around the main shaft respectively to adjust the angle between the left planetary carrier cam and the right planetary carrier cam.

[0006] Furthermore, in the above-mentioned cam: the planetary gear transmission mechanism includes a circular ring-shaped adjustment gear and an internal gear with the same inner and outer diameters, the adjustment gear and the internal gear are spliced ​​and linked, and also includes a group of planetary gears and a left sun gear or a right sun gear; the left sun gear is fixed to the wheel axle from the left planetary carrier cam side; the right sun gear is fixed to the wheel axle from the right planetary carrier cam side; the planetary gears in the internal gear are respectively meshed with the internal gear and the left sun gear or the right sun gear; and also includes an adjustment power that drives the adjustment gear to rotate.

[0007] Furthermore, in the above-mentioned cam: it also includes a sun gear cover plate for adjusting the large gear and internal gear combination to be installed into the left planetary carrier cam or the right planetary carrier cam; the sun gear cover plate realizes the installation of the large gear and internal gear combination and the linkage with the left planetary carrier cam or the right planetary carrier cam.

[0008] Furthermore, in the above-mentioned cam: the adjustment power includes adjusting the left power mechanism and the right power mechanism of the left planetary carrier cam or the right planetary carrier cam respectively.

[0009] Furthermore, in the above-mentioned cam: the left power mechanism includes a left servo motor, a left worm, a left turbine, a left gear shaft and a left gear; the shaft of the left servo motor is connected to the left worm, the left worm is meshed with the left turbine, the left turbine and the left gear are fixed on the left gear shaft, and the left gear is meshed with the adjustment gear;

[0010] The right power mechanism includes a right servo motor, a right worm, a right turbine, a right gear shaft and a right gear; the shaft of the right servo motor is connected to the right worm, the right worm is meshed with the right turbine, the right turbine and the right gear are fixed on the right gear shaft, and the right gear is meshed with the adjustment gear.

[0011] Furthermore, in the above-mentioned cam: a left fixing flange for mounting the cam to the binding machine is provided on the outer side of the left planetary carrier cam; a right fixing flange is provided on the outer side of the right planetary carrier cam, and an external connecting sprocket is installed on the other side of the right fixing flange.

[0012] The present invention also provides a glue-cutting cam mechanism, comprising a glue-cutting cam assembly installed on a glue binding machine frame, wherein the highest point of the cam in the glue-cutting cam assembly lifts the roller of the glue scraping swing arm, driving the glue scraping blade of the glue scraping assembly to press down, so that the glue scraping blade cuts off the hot melt glue on the surface of the glue wheel, thereby achieving the purpose of glue cutting; the cam in the glue-cutting cam assembly is the above-mentioned cam.

[0013] The present invention also provides a glue binding machine, comprising a glue pot, a rubber wheel assembly, and a glue scraping assembly arranged on a frame; a book clamp clamps a book and passes over the glue pot, and a rubber wheel of the rubber wheel assembly rotates to transfer the hot melt glue on the glue pot to the surface of the rubber wheel and onto the book; a glue scraping blade of the glue scraping assembly presses down to cut the glue; and also includes a glue cutting cam mechanism that presses down the glue scraping blade of the glue scraping assembly; the glue cutting cam mechanism is the above-mentioned glue cutting cam mechanism.

[0014] The perfect binder of the present invention has the following beneficial technical effects:

[0015] The two separated and combined glue-cutting cams naturally form an angle, which can control the effective length of glue supply of the glue wheel, thereby meeting the changes in the gluing length of books of different specifications. The cam angle can remain unchanged, the gluing length of the book is constant, and the glue-cutting of the top and bottom of the book is stable.

[0016] The two glue-breaking cams are powered by a separate servo motor, and the absolute position of the cam relative to the power spindle can be adjusted online to achieve the glue-breaking position at the top and bottom of the book. The operator can control the motor through the touch screen to adjust the angle between the two cams to control the gluing length of the book. There is no need to stop the machine, which reduces quality problems caused by short or long gluing length of the book. It also reduces the time for modifying parameters and increases the machine running time to a certain extent, and solves the problem of modifying the gluing length, thereby increasing production and achieving a win-win situation in terms of production and quality.

[0017] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 This is a structural diagram of a perfect binder according to Embodiment 1 of the present invention;

[0019] Attached Figure 2 This is an exploded view of the cam in Example 1 of the present invention. DETAILED DESCRIPTION

[0020] This embodiment 1 is as Figure 1 As shown: this embodiment is a glue binding machine, including a glue pot 400, a rubber wheel assembly 200, and a glue scraping assembly 300 arranged on a frame; the book clamp clamps the book and passes over the glue pot 400, and the rubber wheel of the rubber wheel assembly 200 rotates to transfer the hot melt glue on the glue pot 400 attached to the surface of the rubber wheel to the book; the glue scraping blade of the glue scraping assembly 300 presses down to cut the glue; it also includes a glue cutting cam mechanism that presses down the glue scraping blade of the glue scraping assembly 300; the glue cutting cam mechanism includes a glue cutting cam assembly 100 installed on the frame of the glue binding machine, the highest point of the cam in the glue cutting cam assembly 100 lifts the roller of the glue scraping swing arm, driving the glue scraping blade of the glue scraping assembly 300 to press down, so that the glue scraping blade cuts off the hot melt glue on the surface of the rubber wheel, thereby achieving the purpose of cutting the glue; the cam in the glue cutting cam assembly 100.

[0021] Cam as Figure 2As shown, it includes a main shaft 14 and a cam wheel body rotating around the main shaft 14; the cam wheel body includes a left planetary carrier cam 12 and a right planetary carrier cam 13 spliced ​​to each other; the left planetary carrier cam 12 and the right planetary carrier cam 13 are symmetrically provided with a star gear transmission mechanism that drives the angle between the left planetary carrier cam 12 and the right planetary carrier cam 13 respectively. In this embodiment, the glue-breaking cam on the glue binding machine, the two separated and combined glue-breaking cams naturally form an angle, which can control the effective length of the glue supply of the glue wheel, thereby meeting the change in the gluing length of books of different specifications. The cam angle can remain unchanged, and the gluing length of the book is constant, ensuring the stability of the glue breaking of the top and bottom of the book.

[0022] In this embodiment, the planetary gear transmission mechanism includes a circular ring-shaped adjustment gear 5 and an internal gear 6 with the same inner and outer diameters, the adjustment gear 5 and the internal gear 6 are spliced ​​and linked, and also includes a set of planetary gears 7 and a left sun gear 8 or a right sun gear 9; the left sun gear 8 is fixed to the axle 14 from the left planetary carrier cam 12 side; the right sun gear 9 is fixed to the axle 14 from the right planetary carrier cam 13 side; the planetary gears 7 are meshed with the internal gear 6 and the left sun gear 8 or the right sun gear 9 in the internal gear 6 respectively; and also includes an adjustment power to drive the adjustment gear 5 to rotate. In this embodiment, two sets of planetary gear transmission mechanisms with basically the same structure are symmetrically arranged, driving the left or right side of the cam to rotate from the left or right side, so as to realize the relative rotation of the left or right cam.

[0023] In this embodiment, in order to realize the rotation of the left side or the right side of the cam respectively, it also includes installing the adjustment large gear 5 and the internal gear 6 combination into the sun gear cover 4 inside the left planetary carrier cam 12 or the right planetary carrier cam 13; the sun gear cover 4 realizes the installation of the large gear 5 and the internal gear 6 combination and is linked with the left planetary carrier cam 12 or the right planetary carrier cam 13.

[0024] In this embodiment, adjusting the power includes respectively adjusting the left power mechanism and the right power mechanism of the left planetary carrier cam 12 or the right planetary carrier cam 13. The two power mechanisms are independent.

[0025] Wherein: the left power mechanism includes a left servo motor 21, a left worm 22, a left turbine 18, a left gear shaft 16 and a left gear 10; the shaft of the left servo motor 21 is connected to the left worm 22, the left worm 22 is meshed with the left turbine 18, the left turbine 18 and the left gear 10 are fixed on the left gear shaft 16, and the left gear 10 is meshed with the adjustment gear 5; the right power mechanism includes a right servo motor 20, a right worm 23, a right turbine 19, a right gear shaft 17 and a right gear 11; the shaft of the right servo motor 20 is connected to the right worm 23, the right worm 23 is meshed with the right turbine 19, the right turbine 19 and the right gear 11 are fixed on the right gear shaft 17, and the right gear 11 is meshed with the adjustment gear 5. In addition, in this embodiment. A left fixing flange 3 for mounting the cam to the binding machine is also provided on the outside of the left planetary carrier cam 12; a right fixing flange 2 is also provided on the outside of the right planetary carrier cam 13, and an external connection sprocket 1 is installed on the other side of the right fixing flange 2.

[0026] In this embodiment, the two glue-breaking cams are powered by a separate servo motor, and the absolute position of the cam relative to the power spindle can be adjusted online, thereby realizing the glue-breaking position at the top and bottom of the book, so that the operator can control the motor through the touch screen to adjust the angle between the two cams to control the gluing length of the book, thereby reducing quality problems caused by short or long gluing length of the book, and to a certain extent reducing the time for modifying parameters, increasing the machine running time, and solving the problem of modifying the gluing length, thereby increasing production and achieving a win-win situation in terms of production and quality.

[0027] In this embodiment, the cam in the glue-cutting cam mechanism of the glue binder is mainly composed of two planetary gear transmission mechanisms and an external motor drive component. The two planetary gear transmission mechanisms are respectively located on the left and right sides of the mechanism. Figure 2As shown: the main parts include an external connecting sprocket 1, a right fixing flange 2, a left fixing flange 3, a sun gear cover 4, an adjusting large gear 5, an internal gear 6, a planetary gear 7, a left sun gear 8, a right sun gear 9, a left gear 10, a right gear 11, a left planetary carrier cam 12, a right planetary carrier cam 13, an outer driving main shaft 14, a connecting reinforcement rod 15, a left gear shaft 16, a right gear shaft 17, a left turbine 18, a right turbine 19, a right servo motor 20, a left servo motor 21, a left worm 22, a right worm 23, etc. The two planetary gear transmission mechanisms are connected by screws and various standard parts to form a complete mechanical structure. The left servo motor 21 in the left planetary gear transmission mechanism transmits power through the left turbine 18 and the left worm 22. The left turbine 18 is connected to the left gear shaft 16. The left gear 10 is fixed to the left gear shaft 16. The left gear 10 is meshed with the adjustment gear 5. The inner gear 6 is fixed to the adjustment gear 5 by screws. The adjustment gear 5 rotates synchronously with the inner gear 6, driving the internal planetary gear 9. The planetary gear 7 is fixed to the left planetary carrier cam 12. In this way, under the power provided by the left servo motor 21, the left planetary carrier cam 12 rotates accordingly; the right planetary gear transmission mechanism is similar in structure to the left planetary gear transmission mechanism, has the same principle, and has basically the same parts, and the left and right planetary gear transmission mechanisms play a role in adjusting the angle between the left planetary carrier cam 12 and the right planetary carrier cam 13.

[0028] In this embodiment, the power of the rubber-breaking cam comes from an external motor, which is connected to an external connecting sprocket 1 through a chain, and the external connecting sprocket 1 is fixed to the outer driving main shaft 14, and the left sun gear 8 and the right sun gear 9 are both fixed to the outer driving main shaft 14. The external motor drives the main shaft 14, so that the left sun gear 8 and the right sun gear 9 rotate at the same time, and the left sun gear 8 and the right sun gear 9 drive the planetary gear 7, and the left planetary carrier cam 12 and the right planetary carrier cam 13 will also rotate accordingly; the left servo motor 21 and the right servo motor 20 are used to change the absolute position of the left planetary carrier cam 12 or the right planetary carrier cam 13 relative to the outer driving main shaft 14. Thus, a certain angle is formed between the left planetary carrier cam 12 and the right planetary carrier cam 13, so as to achieve the purpose of online adjustment of the angles of the two cams.

[0029] A new type of glue-cutting cam mechanism is arranged on a glue binder. The book clamp of the glue binder clamps the book and passes directly above the glue pot. The hot melt glue on the surface of the glue wheel will be transferred to the book. The rotation of the glue wheel of the glue wheel assembly can attach the hot melt glue on the glue pot to the surface of the glue wheel. The two cams of the glue-cutting cam assembly rotate, and the highest point of the cam lifts the roller of the glue scraping swing arm, driving the scraping blade of the glue scraping assembly to press down, so that the scraping blade cuts off the hot melt glue on the surface of the glue wheel to achieve the purpose of glue cutting. In general, the highest point of the cam contacts the roller of the glue scraping swing arm, and the scraping blade of the glue scraping assembly cuts off the glue, and no glue on the glue wheel is transferred to the book; the lowest point of the cam contacts the roller of the glue scraping swing arm, and the scraping blade of the glue scraping assembly releases the glue supply, and glue on the glue wheel is transferred to the book. Furthermore, the gluing length of the book is controlled by changing the angle between the two cams.

[0030] In this embodiment, the cam glue-breaking mechanism of the glue binding machine is mainly powered by an external motor. The motor drives the main shaft 14, so that the left sun gear 8 and the right sun gear 9 rotate, and drives the internal planetary gear 7, so that the left planetary carrier cam 12 and the right planetary carrier cam 13 rotate. The length of the glue wheel is controlled by the angle between the left planetary carrier cam 12 and the right planetary carrier cam 13. The larger the angle between the lowest points of the planetary carrier cam 12 and the right planetary carrier cam 13, the longer the lowest point of the cam, the longer the glue release of the glue scraping assembly, and the longer the glue length of the book. The angle between the left planetary carrier cam 12 and the right planetary carrier cam 13 remains unchanged, the sprocket 1 rotates, the roller of the glue scraping adjustment swing arm contacts the cam surface, and the glue scraping assembly is driven. The longer the roller contacts the lowest point of the cam, the longer the glue length of the book is. The angle between the left planetary carrier cam 12 and the right planetary carrier cam 13 is changed to change the length of the glue scraping, and finally the glue length is changed to cope with books of different specifications.

[0031] In this embodiment, the function of the left planetary gear transmission mechanism and the right planetary gear transmission mechanism is to provide an angle offset for the rotation of the left planetary carrier cam 12 or the right planetary carrier cam 13, thereby changing the angle between the left planetary carrier cam 12 and the right planetary carrier cam 13. The function of the left servo motor 21 and the right servo motor 20 is to change the absolute position of the left planetary carrier cam 12 or the right planetary carrier cam 3 relative to the outer driving main shaft 14. Thus, a certain angle is formed between the left planetary carrier cam 12 and the right planetary carrier cam 13, so as to achieve the purpose of online adjustment of the angles of the two cams.

[0032] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all changes, modifications, substitutions and variations made according to the structure, shape and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cam, comprising a main shaft (14) and a cam wheel body rotating around the main shaft (14); characterized in that: The cam wheel body comprises a left planetary carrier cam (12) and a right planetary carrier cam (13) which are spliced ​​to each other; a planetary gear transmission mechanism is symmetrically arranged on the left planetary carrier cam (12) and the right planetary carrier cam (13) to respectively drive the left planetary carrier cam (12) and the right planetary carrier cam (13) to rotate around a main shaft (14) to adjust the angle between the left planetary carrier cam (12) and the right planetary carrier cam (13).

2. The cam according to claim 1, characterized in that: The planetary gear transmission mechanism comprises a circular ring-shaped adjustment gear (5) and an internal gear (6) having the same inner and outer diameters. The adjustment gear (5) and the internal gear (6) are assembled and linked, and further comprises a set of planetary gears (7) and a left sun gear (8) or a right sun gear (9); the left sun gear (8) is fixed to the main shaft (14) from the side of the left planetary carrier cam (12); the right sun gear (9) is fixed to the main shaft (14) from the side of the right planetary carrier cam (13); the planetary gears (7) are respectively meshed with the internal gear (6) and the left sun gear (8) or the right sun gear (9) in the internal gear (6); and further comprises an adjustment power for driving the adjustment gear (5) to rotate.

3. The cam according to claim 2, characterized in that: It also includes a sun gear cover (4) for installing the adjustment large gear (5) and internal gear (6) combination into the left planetary carrier cam (12) or the right planetary carrier cam (13); the sun gear cover (4) realizes the installation of the large gear (5) and internal gear (6) combination in linkage with the left planetary carrier cam (12) or the right planetary carrier cam (13).

4. The cam according to claim 2, characterized in that: The power adjustment includes a left power mechanism and a right power mechanism for adjusting the left planetary carrier cam (12) or the right planetary carrier cam (13) respectively.

5. The cam according to claim 4, characterized in that: The left power mechanism comprises a left servo motor (21), a left worm (22), a left turbine (18), a left gear shaft (16) and a left gear (10); the shaft of the left servo motor (21) is connected to the left worm (22), the left worm (22) is meshed with the left turbine (18), the left turbine (18) and the left gear (10) are fixed on the left gear shaft (16), and the left gear (10) is meshed with the adjustment gear (5); The right power mechanism comprises a right servo motor (20), a right worm gear (23), a right turbine (19), a right gear shaft (17) and a right gear (11); the shaft of the right servo motor (20) is connected to the right worm gear (23), the right worm gear (23) is meshed with the right turbine gear (19), the right turbine gear (19) and the right gear (11) are fixed on the right gear shaft (17), and the right gear (11) is meshed with the adjustment gear (5).

6. The cam according to any one of claims 1 to 5, characterized in that: A left fixing flange (3) for mounting the cam on the binding machine is also arranged on the outside of the left planetary carrier cam (12); a right fixing flange (2) is also arranged on the outside of the right planetary carrier cam (13), and an external connecting sprocket (1) is installed on the other side of the right fixing flange (2).

7. A glue-cutting cam mechanism, comprising a glue-cutting cam assembly (100) mounted on a frame of a glue binding machine, wherein the highest point of the cam in the glue-cutting cam assembly (100) lifts the roller of the glue scraping swing arm, driving the glue scraping blade of the glue scraping assembly (300) to press downward, so that the glue scraping blade cuts off the hot melt glue on the surface of the glue wheel, thereby achieving the purpose of glue cutting; characterized in that: The cam in the rubber cutting cam assembly (100) is the cam in claims 1 to 6.

8. A glue binding machine, comprising a glue pot (400), a glue wheel assembly (200), and a glue scraping assembly (300) arranged on a frame; a book clamp holds a book and passes it over the glue pot (400); the glue wheel of the glue wheel assembly (200) rotates to transfer the hot melt glue on the glue pot (400) to the surface of the glue wheel and onto the book; the glue scraping blade of the glue scraping assembly (300) presses down to cut the glue; and also comprises a glue cutting cam mechanism for pressing down the glue scraping blade of the glue scraping assembly (300); characterized in that: The glue-cutting cam mechanism is the glue-cutting cam mechanism of claim 7.

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