A waste edge collecting and processing system for printed products

Abstract

This invention relates to a system for the centralized collection and treatment of waste edges from printed materials. The system includes a fan and a waste discharge pipe. The waste discharge pipe comprises a pipe body, a waste discharge head, a waste guide pipe, a collection pipe, a guiding mechanism, a sealing head, and a sealing element. The waste discharge head includes a frustoconical pipe and a waste outlet pipe. The outer wall of the waste guide pipe and the inner wall of the pipe body form a sealed annular cavity at the waste inlet end of the pipe body. The gap between the waste outlet end of the waste guide pipe and the inner wall of the waste discharge head forms the outlet of the annular cavity. The exhaust pipe of the fan communicates with the annular cavity. The sealing head is detachably mounted at the waste inlet end of the pipe body, and the waste guide pipe is inserted into or withdrawn from the sealing head. This invention can collect waste edges from multiple production lines, and the contact between the threaded section and the sealing element confirms that the outlet gap is completely closed. This allows the waste edges to be discharged from the waste outlet pipe at any time with adjustable negative pressure, completing the centralized treatment of waste edges. The system is simple to operate, energy-saving, and low-cost.

Description

[0001] This application is a divisional application of the application with the application date of September 20, 2017, the application number of 201710854838.0, and the name of waste edge collection system of printed products. TECHNICAL FIELD

[0002] The present application belongs to the field of printed products, and particularly relates to a waste edge collection and processing system of printed products. BACKGROUND

[0003] At present, there is certainly a surplus in the production process of packaging printed products, and the surplus part finally constitutes the waste edge of the packaging printed paper. In order to meet the size requirements of the finished product, the waste edge needs to be cut off.

[0004] However, if the waste edge after cutting is not collected and processed, it is easy to wind the cutting knife, causing the cutting precision to decrease, and it is also easy to break the knife. In order to collect the waste edge, the commonly used schemes at present are as follows: 1, using the winding collection mode; 2, using the negative pressure suction mode formed by the fan.

[0005] For the first mode, after winding to a certain volume, it must be stopped to replace the winding roller, and it cannot be continuously collected. For the second mode, the negative pressure formed is completely controlled by the fan, and only by replacing the fan or adjusting the operation frequency of the fan can the size of the negative pressure be adjusted. Therefore, a large energy consumption is required. At the same time, in the negative pressure adsorption process, if the tension of the waste edge after cutting cannot be adjusted, it is easy to break. SUMMARY

[0006] The technical problem to be solved by the present application is to overcome the deficiencies of the prior art, and to provide an improved waste edge collection and processing system of printed products.

[0007] In order to solve the above technical problems, the present application adopts the following technical scheme:

[0008] A waste edge collecting and processing system for printed products, comprising a fan and a waste discharge pipe, the waste discharge pipe comprising a pipe body, a waste discharge head arranged at the waste outlet end of the pipe body, a waste guide pipe capable of being inserted into or withdrawn from the pipe body, a collecting pipe for collecting the waste edges produced by each flow line into one pipe, a guide mechanism between each flow line and the pipe for guiding the cut waste edges into the pipe, a head, a sealing member, wherein the waste discharge head comprises a frustum pipe with a gradually decreasing outer diameter from the waste outlet end of the pipe body, a waste discharge pipe extending horizontally and outwardly from the outer end of the frustum pipe, the outer wall of the waste guide pipe and the inner wall of the pipe body form an annular cavity arranged sealingly from the waste inlet end of the pipe body, and the gap between the waste discharge end of the waste guide pipe and the inner wall of the waste discharge head forms the outlet of the annular cavity, the exhaust pipe of the fan is in communication with the annular cavity, the head is detachably arranged at the waste inlet end of the pipe body, the waste guide pipe capable of being inserted into or withdrawn from is arranged on the head, a threaded interface is arranged at the middle part of the head, a threaded section is arranged on the outer periphery of the waste guide pipe and matches the threaded interface, the sealing member comprises a first part arranged around the outer periphery of the head and between the inner wall of the pipe body and the outer periphery of the head, and a second part abutting the inner end of the head and sealing with the outer periphery of the waste guide pipe, when the waste discharge end of the waste guide pipe closes the gap of the outlet, the threaded section is located outside or abuts against the outside of the second part.

[0009] According to a specific embodiment and preferred aspect of the present application, the waste discharge end of the waste guide pipe is located in the frustum pipe, the inner diameter of the waste discharge pipe is 1 / 4-1 / 2 of the inner diameter of the waste guide pipe, and the inner diameter of the pipe body is 1.5-2.5 times of the inner diameter of the waste guide pipe. The smaller the gap of the outlet, the smaller the air volume discharged from the gap, and the smaller the negative pressure formed in the waste guide pipe; the larger the gap of the outlet, the larger the air volume discharged from the gap, and the larger the negative pressure formed in the waste guide pipe.

[0010] Preferably, the head, the waste guide pipe and the pipe body are arranged in the same line.

[0011] According to another specific embodiment and preferred aspect of the present application, the waste inlet end of the waste guide pipe is sealingly connected with the collecting pipe through a joint, and the waste inlet end of the waste guide pipe is movably arranged at the joint with the insertion or withdrawal of the waste guide pipe into or from the pipe body.

[0012] According to a specific embodiment and preferred aspect of the present application, the guide mechanism comprises a positioning rod located above the cut printed products, a limiting block located at the side of the cut and capable of being movably adjusted along the length direction of the positioning rod, a guide hook rotatably arranged on the limiting block around the axis of the positioning rod, and an elastic component arranged between the guide hook and the limiting block to keep the guide hook from moving downward.

[0013] Preferably, the guide hook comprises a connecting part sleeved on the positioning rod and rotationally arranged on the limiting block, a connecting rod downwardly extending from the connecting part, and a hook at the bottom of the connecting rod, and the elastic assembly is arranged between the connecting rod and the limiting block.

[0014] Preferably, the limiting block comprises a sliding sleeve sleeved on the positioning rod and arranged on both sides of the connecting part, and the connecting part is rotationally arranged on the sliding sleeve at both ends respectively.

[0015] Preferably, the elastic assembly comprises a connecting plate arranged integrally with the limiting block, and springs connected at both ends of the connecting plate and the guide hook respectively, wherein the springs can be contracted or reset according to the size of the waste edge tension force, so as to fine-tune the upward hooking force of the guide hook.

[0016] Preferably, the guide mechanism further comprises a positioning member for positioning the sliding sleeve on the positioning rod.

[0017] Preferably, the connecting plate is vertically arranged, and the springs upwardly support the guide hook around the axis of the positioning rod.

[0018] In addition, the limiting block, the guide hook, and the elastic assembly constitute a guide unit, there are two waste edges of the printed product to be cut, and the two waste edges are located at both sides of the printed product to be cut in the width direction, and the guide unit is correspondingly arranged above each waste edge after cutting.

[0019] Preferably, the positioning rod is arranged along the width direction of the printed product to be cut.

[0020] Preferably, the guide mechanism further comprises a bell mouth joint at the feeding end of the waste edge collecting device, and the large-diameter part of the bell mouth joint faces the guide hook, so as to prevent the waste edge from being scraped off when entering the collecting device.

[0021] In addition, the exhaust pipe of the fan is arranged close to the waste edge discharging head, and the waste edge collecting and processing system further comprises a waste collecting bin and a crusher in butt joint with the waste edge discharging head, wherein the waste discharging end of the waste edge discharging head extends into the waste collecting bin and is located above the side of the crusher.

[0022] Thanks to the above technical scheme, the present application has the following advantages compared with the prior art:

[0023] The present application can collect the waste edges of multiple cutting lines, and the resistance of the thread segment and the sealing member can prove that the gap of the outlet is completely closed, so that the waste edges can be discharged through the self-waste discharging pipe with the size of the negative pressure being adjusted at any time, the waste edge collecting and processing is completed, the operation is simple, the energy consumption is saved, and the cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1This is a schematic diagram (partial cross-section) of the waste edge collection system in this embodiment;

[0025] Figure 2 for Figure 1 Front view diagram of the central guide mechanism;

[0026] Figure 3 for Figure 2 A top-down enlarged schematic diagram;

[0027] The components are as follows: 1. Fan; 10. Exhaust duct; 2. Waste discharge duct; 20. Pipe body; 21. Waste discharge head; 210. Frustum-shaped pipe; 211. Waste outlet pipe; 3. Waste guide pipe; 3a. Annular cavity; 3b. Outlet; 3c. Threaded section; 4. End cap; 40. Threaded interface; 5. Seal; 51. First component; 52. Second component; 6. Waste collection bin; 7. Crusher; 8. Collection pipe; 9. Connector; A. Guide mechanism; A1. Cutting tool; A2. Positioning rod; A3. Limiting block; A30. Sliding sleeve; A4. Guide hook; A40. Connecting part; A41. Connecting rod; A42. Hook; A5. Elastic component; A50. Connecting plate; A51. Spring; A6. Positioning component; A7. Trumpet-shaped connector; X. Cut printed product; Y. Printed product to be cut; B. Waste edge; L. Production line. Detailed Implementation

[0028] See Figures 1 to 3 As shown, the waste edge collection system for printed products according to this embodiment includes a fan 1 and a waste discharge pipe 2. The waste discharge pipe 2 includes a pipe body 20 and a waste discharge head 21 disposed at the waste discharge end of the pipe body 20. The waste edge collection system also includes a guide pipe 3 that can extend into or be withdrawn from the pipe body 20, a collection pipe 8 for collecting the waste edges generated by each production line L into a single pipe, a guide mechanism A located between each production line L and the pipe for guiding the cut waste edges B into the pipe, a waste edge collection bin 6, and a waste edge collection bin 6 disposed within the waste edge collection bin and connected to the waste discharge pipe. The waste discharged from the head 21 is connected to the shredder 7. The outer wall of the waste guide pipe 3 and the inner wall of the pipe body 20 form an annular cavity 3a that is sealed from the waste inlet end of the pipe body 20. The gap between the waste discharge end of the waste guide pipe 3 and the inner wall of the waste discharge head 21 forms the outlet 3b of the annular cavity. The exhaust pipe 10 of the blower 1 is connected to the annular cavity 3a. When the gap of the outlet 3b is smaller, the air volume discharged from the gap is smaller, and the negative pressure formed in the waste guide pipe 3 is smaller. When the gap of the outlet 3b is larger, the air volume discharged from the gap is larger, and the negative pressure formed in the waste guide pipe 3 is larger. Therefore, the length of the waste guide pipe 3 can be directly adjusted to adjust the magnitude of the negative pressure and meet the collection of different waste edges.

[0029] The waste inlet end of the waste guide pipe 3 is sealingly connected to the collecting pipe 8 through a joint 9. In this example, the joint is an elbow, and the waste inlet end of the waste guide pipe 3 is movably arranged at the joint 9 as the waste guide pipe 3 is inserted into or withdrawn from the pipe body 20.

[0030] Specifically, the waste outlet head 21 comprises a frustum tube 210 with a gradually decreasing outer diameter from the waste outlet end of the pipe body 20, and a waste outlet pipe 211 extending horizontally and outwardly from the outer end of the frustum tube 210, and the waste outlet end of the waste guide pipe 3 is located in the frustum tube 210.

[0031] The inner diameter of the waste outlet pipe 211 is 1 / 4 to 1 / 2 of the inner diameter of the waste guide pipe 3.

[0032] A head 4 is further arranged at the waste inlet end of the pipe body 20, and the waste guide pipe 3 is movably arranged on the head 4.

[0033] The center lines of the head 4, the waste guide pipe 3, and the pipe body 20 are arranged in the same line.

[0034] A threaded interface 40 is arranged at the middle of the head 4, and a threaded section 3c is arranged on the outer periphery of the waste guide pipe 3 to match the threaded interface. The insertion or withdrawal of the waste guide pipe 3 is adjusted in a screwing manner.

[0035] In this example, the head 4 is detachably arranged at the waste inlet end of the pipe body 20, and the waste edge collecting system further comprises a sealing member 5 arranged in the pipe body to sealingly connect the head 4 to the pipe body 20 and the head 4 to the waste guide pipe 3.

[0036] The sealing member 5 comprises a first component 51 arranged around the outer periphery of the head 4 and between the inner wall of the pipe body 20 and the outer periphery of the head 4, and a second component 52 attached to the inner end of the head 4 and sealingly arranged on the outer periphery of the waste guide pipe 3. When the waste outlet end of the waste guide pipe 3 closes the gap of the outlet 3b, the threaded section 3c is located outside or in contact with the second component 52. In this application, the contact between the threaded section 3c and the second component 52 proves that the gap of the outlet 3b is completely closed.

[0037] In addition, the inner diameter of the pipe body 20 is 1.5 to 2.5 times of the inner diameter of the waste guide pipe 3. In this example, it is 1.8 times.

[0038] The exhaust pipe 10 of the fan 1 is arranged close to the waste outlet head 21.

[0039] At the same time, the waste edge collecting system described above further comprises a waste collecting bin 6 and a pulverizer 7 which is in butt joint with the waste outlet head 21. After the waste edge X is discharged from the waste outlet head 21, it is pulverized in the pulverizer 7 and falls to the bottom of the waste collecting bin 6.

[0040] In the example, the guiding mechanism A is located behind the cutting tool A1, and includes a positioning rod A2 located above the cut printed product X, a limiting block A3 located at the side of the cutting and capable of being adjusted along the length direction of the positioning rod A2, a guiding hook A4 rotatably arranged on the limiting block A3 around the axis of the positioning rod A2, and an elastic component A5 arranged between the guiding hook A4 and the limiting block A3 to keep the guiding hook A4 from being hooked upward to the cutting waste edge B.

[0041] In the example, the waste edge B of the printed product Y to be cut has two sides, and is located at the two sides of the width Y of the printed product to be cut. The positioning rod A2 extends along the width direction of the printed product Y to be cut. The limiting block A3, the guiding hook A4, and the elastic component A5 located on the positioning rod A2 form a guiding unit. In the example, there are two guiding units, and each is arranged on the side of the waste edge B.

[0042] Specifically, the guiding hook A4 includes a connecting portion A40 rotatably arranged on the positioning rod A2 and the limiting block A3, a connecting rod A41 extending downward from the connecting portion A40, and a hook 42 located at the bottom of the connecting rod A41. The elastic component A5 is located between the connecting rod A41 and the limiting block A3.

[0043] The limiting block A3 includes a sliding sleeve A30 sleeved on the positioning rod A2 and located on both sides of the connecting portion A40. The connecting portion A40 is rotatably arranged on the sliding sleeve A30 from both ends.

[0044] The guiding mechanism (each guiding unit) further includes a positioning member A6 for positioning the sliding sleeve A30 on the positioning rod A2.

[0045] Specifically, the sliding sleeve A30 is provided with a positioning hole, and the positioning member A6 includes a locking bolt matched with the positioning hole and abutting against the positioning rod A2.

[0046] The elastic component A5 includes a connecting plate A50 integrally arranged with the limiting block A3, and springs A51 connected to the connecting plate A50 and the guiding hook A4 (the connecting rod A41) from both ends. The springs A51 can be contracted or reset according to the size of the waste edge tension, so as to finely adjust the force of the guiding hook A4 hooked upward.

[0047] The connecting plate A50 is vertically arranged, and the springs A51 upwardly support the guiding hook A4 around the axis of the positioning rod A2.

[0048] In addition, in the example, the guiding mechanism further includes a trumpet joint A7 located at the feeding end of the waste edge collecting device. The large-diameter of the trumpet joint A7 faces the guiding hook A4, so as to prevent the waste edge from being scraped off when entering the collecting device.

[0049] In summary, the embodiment has the following advantages:

[0050] 1), on the one hand, the waste edges of multiple pipelines can be concentrated; on the other hand, the size of the negative pressure is adjusted at any time under the premise that the frequency of the fan is unchanged, so as to meet the production demand, so that the concentrated waste edges are adsorbed to the collecting bin, and then the waste edges are crushed by the crusher, the waste edge concentration treatment is completed, the operation is simple, the energy consumption is saved, and the cost is low;

[0051] 2), the gap of the outlet is proved to be completely closed through the resistance of the threaded section and the second sealing element;

[0052] 3), after the waste edge self-discharge head is discharged, the waste edge is crushed by the crusher and falls into the bottom of the waste material collecting bin, so that the collection of the waste edge is more convenient;

[0053] 4), according to the force of the tension fine adjustment hook according to the need of the waste edge, the waste edge can be smoothly introduced into the waste edge collecting device, and the phenomenon of waste edge breakage does not occur;

[0054] 5), the guide unit can be adjusted according to the width of the to-be-cut printed product, so as to meet the cutting and collection of waste edges of different products;

[0055] 6), the setting of the horn joint prevents the waste edge from being scraped off when entering the collecting device.

[0056] The above detailed description of the present application is for the purpose of enabling those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application, and any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A system for concentrated collection and disposal of waste edges of printed products, comprising a fan and a waste discharge duct, the waste discharge duct comprising a duct body, a waste discharge head arranged at a waste discharge end of the duct body, characterized in that: The exhaust head comprises a conical tube with a gradually decreasing outer diameter from the waste outlet end of the pipe body, and an exhaust pipe extending horizontally outward from the outer end of the conical tube. The waste edge collection and processing system further comprises a waste guide pipe capable of being inserted into or withdrawn from the pipe body, a collection pipe for collecting the waste edges generated by each flow line into a pipe, a guide mechanism between each flow line and the pipe for guiding the cut waste edges into the pipe, a closure head, and a sealing element. The outer wall of the waste guide pipe and the inner wall of the pipe body form an annular cavity sealed at the waste inlet end of the pipe body. The gap between the exhaust end of the waste guide pipe and the inner wall of the exhaust head forms the outlet of the annular cavity. The exhaust pipe of the fan is in communication with the annular cavity. The closure head is detachably arranged at the waste inlet end of the pipe body. The waste guide pipe capable of being inserted into or withdrawn from is arranged on the closure head. A threaded interface is provided in the middle of the closure head. A threaded segment is provided on the outer periphery of the waste guide pipe to match the threaded interface. The sealing element comprises a first component arranged around the outer periphery of the closure head and between the inner wall of the pipe body and the outer periphery of the closure head, and a second component attached to the inner end of the closure head and sealed with the outer periphery of the waste guide pipe. When the exhaust end of the waste guide pipe closes the gap of the outlet, the threaded segment is located outside or in contact with the outside of the second component. The exhaust end of the waste guide pipe is located in the conical tube. The inner diameter of the exhaust pipe is 1 / 4 to 1 / 2 of the inner diameter of the waste guide pipe. The inner diameter of the pipe body is 1.5 to 2.5 times the inner diameter of the waste guide pipe. The smaller the gap of the outlet, the smaller the air volume discharged from the gap, and the smaller the negative pressure formed in the waste guide pipe. The larger the gap of the outlet, the larger the air volume discharged from the gap, and the larger the negative pressure formed in the waste guide pipe. The guide mechanism comprises a positioning rod located above the cut printed product, a limiting block located at the side of the cut and capable of being adjusted along the length direction of the positioning rod, a guide hook rotatably arranged on the limiting block around the axis of the positioning rod, and an elastic component arranged between the guide hook and the limiting block to maintain the upward hooking movement trend of the guide hook after cutting the waste edge. The guide hook comprises a connecting part sleeved on the positioning rod and rotatably arranged on the limiting block, a connecting rod extending downward from the connecting part, and a hook located at the bottom of the connecting rod. The elastic component is located between the connecting rod and the limiting block. The guide mechanism further comprises a positioning element for positioning the sliding sleeve on the positioning rod, and a horn joint located at the inlet end of the waste edge collection device. The large diameter of the horn joint faces the guide hook.

2. The concentrated waste edge collection and disposal system for printed products of claim 1, wherein: The center lines of the closure head, the waste guide pipe, and the pipe body are arranged in the same line.

3. The concentrated waste edge collection and disposal system for printed products of claim 1, wherein: The waste inlet end of the waste guide pipe is sealingly connected to the collection pipe through a joint, and the waste inlet end of the waste guide pipe is movably arranged at the joint when the waste guide pipe is inserted into or withdrawn from the pipe body.

4. The concentrated waste edge collection and disposal system for printed products of claim 1 wherein: The limiting block comprises a sliding sleeve sleeved on the positioning rod and located on both sides of the connecting part, and the connecting part is rotatably arranged on the sliding sleeve at both ends.

5. The concentrated waste edge collection and disposal system for printed products of claim 1 wherein: The elastic component comprises a connecting plate integrally arranged with the limiting block, and springs connected to the connecting plate and the guide hook at both ends. The springs can be contracted or reset according to the size of the waste edge tension force to fine-tune the upward hooking force of the guide hook.

6. The concentrated waste edge collection and disposal system for printed products of claim 5, wherein: The connecting plate is vertically arranged, and the spring supports the guide hook upward around the shaft of the positioning rod.

7. The concentrated waste edge collection and disposal system for printed products of claim 5, wherein: The positioning rod is arranged along the width direction of the cutting printed product.

8. The concentrated waste edge collection and disposal system for printed products of claim 1 wherein: The exhaust pipe of the fan is arranged close to the waste edge discharging head, and the waste edge collecting and processing system further comprises a waste collecting bin and a crusher which is connected to the waste edge discharging head, wherein the waste discharging end of the waste edge discharging head extends into the waste edge collecting bin and is located above the side of the crusher.

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