Spine impregnation mechanism of offset printing production line

By incorporating a water collection tank, adjustable legs, and multiple sets of glue-applying rollers, the problems of glue seepage and unadjustable glue thickness in the spine impregnation mechanism are solved. This achieves thin glue application without seeping into the book core, enhances the applicability and ease of cleaning of the equipment, and prevents the glue from solidifying.

CN223812444UActive Publication Date: 2026-01-20HEBEI PINRUI PRINTING CO LTD
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Patent Information

Application Number
CN202520420455.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-01-20
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

Existing spine impregnation mechanisms suffer from problems such as glue seepage into the book block, fixed and unadjustable glue thickness, and difficulty in cleaning, which affect the quality and usability of books.

Method used

A spine impregnation mechanism was designed, comprising a water collection tank, a glue tank, adjustable legs, an impregnation assembly, and a PLC controller. The height of the impregnation assembly can be adjusted by the adjustable legs, and thin glue application can be achieved by combining multiple sets of glue application rollers and scrapers. A water spray gun and an electric heating rod are provided for cleaning and preventing solidification.

Benefits of technology

It achieves thin-coating adhesive that does not seep into the book block, has strong applicability, and is easy to clean and refill with adhesive, preventing the adhesive from hardening and improving the quality of books and the applicability of equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223812444U_ABST
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Abstract

The utility model discloses a spine gum dipping mechanism of an offset printing production line, which comprises a water collecting tank arranged below a conveying component, and a gum box is arranged in the water collecting tank; three glue grooves used for containing glue are formed in the glue box in the conveying direction of the conveying assembly, and a glue dipping assembly which is located below the conveying assembly and used for conducting glue dipping on the spine is arranged in each glue groove. Adjustable supporting legs used for adjusting the height of the glue tank so as to realize that the heights of the three groups of glue dipping assemblies are sequentially reduced in the conveying direction of the conveying assembly are arranged at the bottom of the glue tank; three glue pipes for communicating the glue tanks with the glue box are arranged between the glue box and the glue tanks, pump machines for pumping glue in the glue box into the corresponding glue tanks are arranged on the glue pipes, and the controlled ends of the pump machines and the glue dipping assembly are connected with a PLC (Programmable Logic Controller); a containing groove is formed in the side wall of the glue box, and a water spraying gun which is externally connected with a water source and used for cleaning the spine glue dipping mechanism is contained in the containing groove. The gluing device is good in gluing effect, high in practicability and convenient to clean.
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Description

TECHNICAL FIELD

[0001] The utility model relates to printing equipment technical field, concretely relates to a spine glue dipping mechanism of offset press production line. BACKGROUND

[0002] In offset press binding process, spine glue dipping is a crucial procedure, and its quality directly influences the firmness and service life of books. The existing spine glue dipping mechanism comprises a rack and a glue tank arranged on the rack for placing glue, a conveying assembly for clamping and conveying a book core with the spine downward is arranged above the glue tank, a glue applying assembly is arranged in the glue tank, and the glue applying assembly sequentially applies glue to the book core conveyed by the conveying assembly, but the following problems exist:

[0003] I. The spine glue dipping is completed once, thick glue needs to be applied for setting, which causes the book core to be damaged by glue seepage into the text, and the thick glue is not easy to set.

[0004] II. The glue dipping mechanism has a fixed height and cannot be adjusted, which causes the glue application thickness to be unable to be adjusted and poor applicability.

[0005] III. It is not easy to clean. INVENTION CONTENT

[0006] The utility model needs to solve the technical problem of providing a spine glue dipping mechanism of offset press production line to solve the problems in the background art.

[0007] To solve the above technical problems, the technical scheme adopted by the utility model is as follows.

[0008] A spine glue dipping mechanism of offset press production line comprises a water collecting tank arranged below a conveying assembly for clamping and conveying a book core with the spine downward, a glue tank for containing glue is arranged in the water collecting tank, three glue tanks for containing glue are arranged on the glue tank along the conveying direction of the conveying assembly, a glue dipping assembly for dipping glue on the spine is arranged below the conveying assembly in the glue tank, adjustable legs for adjusting the height of the glue tank to realize the arrangement of three groups of glue dipping assemblies with gradually decreasing heights along the conveying direction of the conveying assembly are arranged at the bottom of the glue tank, three glue pipes for connecting each glue tank with the glue tank are arranged between the glue tank and the glue tank, a pump for pumping glue in the glue tank into the corresponding glue tank is arranged on the glue pipe, a PLC controller is connected to the controlled end of the pump and the glue dipping assembly, a containing groove is arranged on the side wall of the glue tank, a water gun for cleaning the spine glue dipping mechanism is arranged in the containing groove.

[0009] Preferably, a drain port for connecting a drain pipe is arranged at the bottom of the side wall of the water collecting tank.

[0010] Preferably, the glue tank is provided with an electric heating rod for heating the glue to avoid solidification and a first liquid level sensor for monitoring the glue liquid level in the glue tank, the output end of the first liquid level sensor is connected with the input end of the PLC controller, and the controlled end of the electric heating rod is connected with the output end of the PLC controller.

[0011] Preferably, the bottom of the glue tank is funnel-shaped and is provided with a glue discharge port, the glue discharge port is communicated with the glue tank through a glue discharge pipeline, and the glue discharge port is provided with an electromagnetic valve for controlling the opening and closing of the glue discharge port, and the controlled end of the electromagnetic valve is connected with the output end of the PLC controller.

[0012] Preferably, the front side wall of the glue tank is provided with a glue adding groove which is forwardly protruding and located below the discharge end of the glue pipe, and the inside of the glue tank is provided with a second liquid level sensor for monitoring the glue liquid level in the glue tank, and the output end of the second liquid level sensor is connected with the input end of the PLC controller.

[0013] Preferably, the adjustable supporting leg comprises a base, an internally-threaded cylinder is vertically arranged on the base and is provided with an internal thread, and a screw rod is threadedly connected in the internally-threaded cylinder, and the top of the screw rod is connected with the glue tank.

[0014] Preferably, the glue dipping assembly comprises a first glue applying roller, a second glue applying roller and a wiping shaft which are sequentially arranged on the top of the glue tank in the conveying direction of the conveying assembly, a scraping plate is arranged between the first glue applying roller and the second glue applying roller and vertically arranged in the glue tank, and the scraping plate is used for scraping the excess glue on the book spine after being applied by the first glue applying roller; and the glue tank is further provided with a scraper which is located on the side of the wiping shaft away from the second glue applying roller and is used for scraping the glue on the wiping shaft.

[0015] Preferably, the rear side wall of the glue tank is provided with a transmission box, the transmission box is provided with a driving structure and a transmission structure which are connected with the first glue applying roller, the second glue applying roller and the wiping shaft and are used for driving the first glue applying roller, the second glue applying roller and the wiping shaft to rotate, and the controlled end of the driving structure is connected with the output end of the PLC controller.

[0016] Thanks to the above technical solutions, the technical progress achieved by the utility model is as follows.

[0017] The three groups of glue dipping assemblies can guarantee the bonding effect, the thickness of the applied glue is relatively thin, the glue cannot penetrate into the book core, and thus the book core is protected; the adjustable supporting leg can realize the height adjustment of the glue dipping assembly, the thickness of the applied glue can be adjusted, and the applicability of the mechanism is enhanced; the water collecting tank and the water gun can realize the cleaning of the book spine dipping mechanism; the glue pipe, the pump, the glue discharge port and the electromagnetic valve can not only realize the automatic supplement of the glue into the glue tank, but also can return the remaining glue in the glue tank to the glue tank; and the electric heating rod can heat the glue, so that the solidification of the glue is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Structure schematic view of the utility model;

[0019] Figure 2 Structure schematic view of the glue tank and the glue dipping assembly of the utility model.

[0020] Wherein: 1. conveying assembly, 2. book block, 3. water collecting tank, 31. drainage port, 4. glue tank, 41. electric heating rod, 42. containing groove, 43. water gun, 5. glue tank, 51. glue discharge port, 52. glue adding groove, 6. adjustable supporting leg, 61. base, 62. internal thread cylinder, 63. screw rod, 7. glue dipping assembly, 71. first glue coating roller, 72. scraper, 73. second glue coating roller, 74. smoothing shaft, 75. doctor blade, 8. rubber tube, 9. pump, 10. transmission box. DETAILED DESCRIPTION

[0021] The utility model will be further explained in detail in connection with the drawings and specific embodiments.

[0022] A book spine glue dipping mechanism of a offset printing production line, in combination with Figure 1 As shown in the figure, comprising water collecting tank 3, water collecting tank 3 is set below conveying assembly 1, and conveying assembly 1 is used to clamp and convey book block 2 with the book spine downward.Glue tank 4 is arranged in water collecting tank 3, and glue tank 4 is used to contain glue;Three glue tanks 5 are arranged on glue tank 4 along the conveying direction of conveying assembly 1, and glue tank 5 is used to contain glue, glue tank 5 is provided with glue dipping assembly 7, glue dipping assembly 7 is located below conveying assembly 1, and glue dipping assembly 7 is used to dip the book spine;The bottom of glue tank 5 is provided with adjustable supporting leg 6, and adjustable supporting leg 6 is used to adjust the height of glue tank 5, so that the height of three groups of glue dipping assembly 7 is adjusted, and the height of three groups of glue dipping assembly 7 is sequentially reduced along the conveying direction of conveying assembly 1, and then three times of glue coating to the book spine is realized, not only can guarantee the fitting effect, and the thickness of glue coating is relatively thin, and the glue will not penetrate into book block 2, so as to protect book block 2.

[0023] As Figure 2As shown, the glue dipping assembly 7 comprises a first glue roller 71, a second glue roller 73 and a smoothing shaft 74 arranged in sequence on the top of the glue tank 5 along the conveying direction of the conveying assembly 1, wherein the first glue roller 71 is used for first-time glue coating of the book spine; the second glue roller 73 is used for second-time glue coating of the book spine; and the smoothing shaft 74 is used for smoothing the glue on the coated book spine. A scraper 72 is arranged between the first glue roller 71 and the second glue roller 73, the scraper 72 is vertically arranged in the glue tank 5 and the top thereof is arc-shaped, and the scraper 72 is used for scraping the excess glue on the book spine coated by the first glue roller 71. A scraper knife 75 is further arranged on the glue tank 5, the scraper knife 75 is V-shaped, the scraper knife 75 is located on the side of the smoothing shaft 74 away from the second glue roller 73, and the scraper knife 75 is used for scraping the glue on the smoothing shaft 74, and the scraped glue flows back to the glue tank 5 from both ends of the scraper knife 75.

[0024] A transmission box 10 is arranged on the rear side wall of the glue tank 5, and a driving structure and a transmission structure are arranged in the transmission box 10, the driving structure and the transmission structure are connected with the first glue roller 71, the second glue roller 73 and the smoothing shaft 74, the driving structure and the transmission structure can be a motor and a belt transmission, which are prior art and will not be limited and described here, and the first glue roller 71, the second glue roller 73 and the smoothing shaft 74 are driven to rotate by the driving structure and the transmission structure.

[0025] The adjustable supporting leg 6 comprises a base 61, an internally-threaded cylinder 62 is vertically arranged on the base 61, an internal thread is formed in the internally-threaded cylinder 62, a screw rod 63 is connected with the internally-threaded cylinder 62 through the internal thread, and the top of the screw rod 63 is connected with the glue tank 5. When the height of the glue tank 5 is adjusted, the internally-threaded cylinder 62 is rotated, so that the height of the glue dipping assembly 7 is adjusted, the glue coating thickness is adjusted, and the applicability of the mechanism is enhanced.

[0026] A glue adding tank 52 is arranged on the front side wall of the glue tank 5, and the glue adding tank 52 is forwardly arranged; a second liquid level sensor is arranged in the glue tank 5, and the second liquid level sensor is used for monitoring the liquid level of the glue in the glue tank 5.

[0027] Three glue pipes 8 are arranged between the glue tank 4 and the glue tank 5, the discharge ends of the three glue pipes 8 are located above the corresponding glue adding tanks 52, so that the glue tanks 5 are communicated with the glue tank 4. A pump 9 is arranged on the glue pipe 8, and the pump 9 is used for pumping the glue in the glue tank 4 into the corresponding glue tank 5. The bottom of the glue tank 5 is funnel-shaped and is provided with a glue discharge port 51, the glue discharge port 51 is communicated with the glue tank 4 through a glue discharge pipeline, and an electromagnetic valve is arranged on the glue discharge port 51, and the electromagnetic valve is used for controlling the opening and closing of the glue discharge port 51. When the book spine glue dipping mechanism stops working, the electromagnetic valve can be opened, so that the glue in the glue tank 5 flows back to the glue tank 4.

[0028] The glue tank 4 is provided with an electric heating rod 41 and a first liquid level sensor, wherein the electric heating rod 41 is used for heating glue, thereby avoiding glue solidification; and the first liquid level sensor is used for monitoring the liquid level of glue in the glue tank 4. The glue tank 4 is provided with a glue adding opening, and glue can be added to the glue tank 4 by opening the glue adding opening.

[0029] The side wall of the glue tank 4 is provided with a containing groove 42, and a water gun 43 is contained in the containing groove 42. The water gun 43 is connected with a water source, and when the book spine glue dipping mechanism needs to be cleaned, a worker can clean the book spine glue dipping mechanism by holding the water gun 43. The cleaning sewage is collected by the water collecting tank 3. The side wall bottom of the water collecting tank 3 is provided with a drain port 31 connected with a drain pipe, thereby draining the cleaning sewage.

[0030] The book spine glue dipping mechanism further comprises a PLC controller, the input end of the PLC controller is connected with the output end of the first liquid level sensor and the second liquid level sensor respectively; and the output end of the PLC controller is connected with the pump 9, the driving structure of the glue dipping assembly 7, the electric heating rod 41 and the controlled end of the electromagnetic valve respectively. The PLC controller controls the corresponding pump 9 to supplement glue into the corresponding glue tank 5 through the information monitored by the second liquid level sensor; the PLC controller controls the rotation of the first glue roller 71, the second glue roller 73 and the wiping shaft 74 through the control of the driving structure of the glue dipping assembly 7, thereby completing glue coating; the PLC controller controls the heating of glue in the glue tank 4 through the control of the electric heating rod 41; the PLC controller controls the return of glue in the glue tank 5 to the glue tank 4 through the control of the electromagnetic valve; and the PLC controller is further provided with an indicating lamp, when the first liquid level sensor monitors that the liquid level of glue in the glue tank 4 is lower than a set value, the PLC controller controls the indicating lamp to light up, thereby reminding the worker to supplement glue into the glue tank 4.

[0031] In use, the three groups of glue dipping assemblies 7 dip glue for the book spine, not only guaranteeing the fitting effect, but also making the thickness of glue coating relatively thin, so that glue cannot penetrate into the book block 2, thereby protecting the book block 2; the adjustable supporting legs 6 can realize the height adjustment of the glue dipping assemblies 7, thereby realizing the adjustment of glue coating thickness and enhancing the applicability of the mechanism; the water collecting tank 3 and the water gun 43 can realize the cleaning of the book spine glue dipping mechanism; the glue pipe 8, the pump 9, the glue discharging opening 51 and the electromagnetic valve can not only realize the automatic supplement of glue into the glue tank 5, but also return the remaining glue in the glue tank 5 to the glue tank 4; and the electric heating rod 41 can heat glue, thereby avoiding glue solidification.

Claims

1. A spine gumming mechanism of a flexographic printing line, characterized in that: The application relates to a book spine gluing device, which comprises a water collecting tank (3) arranged below a conveying assembly (1) for clamping and conveying a book core (2) with the book spine downward, a glue tank (4) for containing glue is arranged in the water collecting tank (3); three glue grooves (5) for containing glue are arranged on the glue tank (4) along the conveying direction of the conveying assembly (1), a glue dipping assembly (7) for dipping the book spine is arranged in the glue groove (5) below the conveying assembly (1), the bottom of the glue groove (5) is provided with an adjustable supporting leg (6) for adjusting the height of the glue groove (5) so that three groups of glue dipping assemblies (7) are arranged in sequence in the height direction of the conveying assembly (1); three glue pipes (8) are arranged between the glue tank (4) and the glue groove (5) and are communicated with each other, a pump (9) is arranged on the glue pipe (8) and is used for pumping glue in the glue tank (4) into the corresponding glue groove (5), the controlled end of the pump (9) and the glue dipping assembly (7) is connected with a PLC controller; a containing groove (42) is arranged on the side wall of the glue tank (4) and is used for containing a water gun (43) which is connected with an external water source and is used for cleaning the book spine dipping mechanism.

2. The spine gumming mechanism of the offset press line according to claim 1, characterized in that: A drain port (31) for connecting with an external drain pipe is arranged at the bottom of the side wall of the water collecting tank (3).

3. The spine gumming mechanism of the offset press line according to claim 1, characterized in that: The glue tank (4) is provided with an electric heating rod (41) for heating the glue to avoid glue solidification and a first liquid level sensor for monitoring the liquid level of the glue in the glue tank (4), the output end of the first liquid level sensor is connected with the input end of the PLC controller, and the controlled end of the electric heating rod (41) is connected with the output end of the PLC controller.

4. The spine gumming mechanism of the offset press line according to claim 1, characterized in that: The bottom of the glue groove (5) is funnel-shaped and is provided with a glue discharging port (51), the glue discharging port (51) is communicated with the glue tank (4) through a glue discharging pipeline, an electromagnetic valve is arranged on the glue discharging port (51) and is used for controlling the opening and closing of the glue discharging port (51), and the controlled end of the electromagnetic valve is connected with the output end of the PLC controller.

5. The spine gumming mechanism of a flexographic printing line according to claim 1, characterized in that: A glue adding groove (52) is arranged on the front side wall of the glue groove (5) and is located below the discharging end of the glue pipe (8), a second liquid level sensor is arranged in the glue groove (5) and is used for monitoring the liquid level of the glue in the glue groove (5), and the output end of the second liquid level sensor is connected with the input end of the PLC controller.

6. The spine gumming mechanism of a flexographic printing line according to claim 1, characterized in that: The adjustable supporting leg (6) comprises a base (61), an internally-threaded cylinder (62) with internal threads is vertically arranged on the base (61), and a screw rod (63) with a top connected with the glue groove (5) is threadedly connected in the internally-threaded cylinder (62).

7. The spine gumming mechanism of a flexographic printing line according to claim 1, characterized in that: The glue dipping assembly (7) comprises a first glue coating roller (71), a second glue coating roller (73) and a smoothing shaft (74) which are arranged in sequence on the top of the glue groove (5) along the conveying direction of the conveying assembly (1), a scraper (72) is arranged in the glue groove (5) between the first glue coating roller (71) and the second glue coating roller (73) and is used for scraping the excess glue on the book spine coated by the first glue coating roller (71), and a scraper knife (75) is arranged on the side of the smoothing shaft (74) away from the second glue coating roller (73) and is used for scraping the glue on the smoothing shaft (74).

8. The spine gumming mechanism of a flexographic printing line according to claim 7, characterized in that: The rear side wall of the glue tank (5) is provided with a transmission box (10), the transmission box (10) is provided with a driving structure and a transmission structure connected with the first glue roller (71), the second glue roller (73) and the smoothing shaft (74) and used for driving the first glue roller (71), the second glue roller (73) and the smoothing shaft (74) to rotate, and the controlled end of the driving structure is connected with the output end of the PLC controller.