Cooling mechanism and kraft paper bag production discharging device

Abstract

The utility model provides a cooling mechanism and a kraft paper bag production discharging device, and belongs to the technical field of paper bag production equipment. The cooling mechanism comprises a raw material placing assembly and a discharging assembly. A first expansion piece is rotationally arranged on one support, a movable second expansion piece is arranged on the other support, and the two ends of the raw material roller are detachably connected with the opposite faces of the first expansion piece and the second expansion piece respectively; and a rotating roller is rotationally arranged on the U-shaped frame, a liquid cooling cavity is formed in the rotating roller, and cooling liquid is fully cooled in the liquid cooling cavity. Due to the fact that the cooling cavity of the rotating roller is internally provided with the cooling liquid, the temperature of the whole rotating roller is low, the rotating roller is not prone to heating when rubbing with kraft paper, the cooling liquid cools the rotating roller when a small amount of heat is generated, and therefore the problem of uneven quality caused by temperature difference is prevented, and the quality of follow-up paper bag production is improved.

Description

Technical Field

[0001] This application relates to the field of paper bag production equipment, and more specifically, to a cooling mechanism and a feeding device for kraft paper bag production. Background Technology

[0002] Kraft paper bags are non-toxic, odorless, and pollution-free, meeting national environmental protection standards. They are high-strength and environmentally friendly, making them one of the most popular eco-friendly packaging materials internationally. Kraft paper bags are increasingly widely used; they are commonly found in supermarkets, shopping malls, shoe stores, clothing stores, and other similar establishments, providing convenience for customers carrying their purchases. Kraft paper bags are an environmentally friendly packaging option, and they come in a wide variety of types.

[0003] In the production of kraft paper bags, the first step is feeding the paper material. Existing feeding devices include multiple feeding rollers, each with a feeding roll. Feeding is achieved by rotating the feeding roll. For example, a paper bag production feeding device disclosed in Chinese application number 201620676136.9 uses multiple longitudinally adjustable feeding rollers to adjust the position of the feeding roll, allowing for staggered processing of the unwound paper strip. This facilitates subsequent processing. However, the friction between the paper bag material and the conveying device generates heat, which can lead to uneven quality due to temperature differences, negatively impacting the quality of later paper bag production. Utility Model Content

[0004] To overcome the above deficiencies, this application provides a cooling mechanism and a kraft paper bag production feeding device, which aims to improve the problem of uneven quality caused by frictional heat between the paper bag material and the conveying device, which is detrimental to the quality of subsequent paper bag production.

[0005] On the one hand, embodiments of this application provide a cooling mechanism, including a raw material placement component and a material discharge component.

[0006] The raw material placement assembly includes two supports and a raw material roller. A first expansion member is rotatably mounted on one of the supports, and a movable second expansion member is mounted on the other support. The two ends of the raw material roller are detachably connected to the opposite surfaces of the first expansion member and the second expansion member, respectively.

[0007] The feeding assembly includes a U-shaped frame, on which a rotating roller is rotatably mounted. The rotating roller has a liquid cooling chamber inside, and the liquid cooling chamber is filled with cooling liquid.

[0008] In one specific implementation, a pusher is mounted on the second expansion member, and the pusher is screwed to one of the brackets.

[0009] In one specific implementation, the pusher includes a handwheel, which is fixedly connected to a threaded rod. The top end of the threaded rod is screwed to one of the brackets, and the second expansion member is fixedly connected to the threaded rod.

[0010] In one specific embodiment, the second expansion member includes expansion claws, each of which is arranged in a ring array on the outside of the threaded rod, and each of the expansion claws is connected to the threaded rod by an expansion spring, and each of the expansion claws expands inside the raw material roller.

[0011] In one specific implementation, the angle between each of the expansion claws and the threaded rod is 30-45°.

[0012] In one specific implementation, a load-bearing roller is provided inside the liquid cooling cavity of the rotating roller, and a partition ring is equidistantly sleeved on the outside of the load-bearing roller.

[0013] In one specific implementation, the U-shaped frame is still provided with an adjustable clamping limiter, and the clamping limiter is located above one of the rotating rollers.

[0014] On the other hand, this application embodiment also provides a kraft paper bag production feeding device, including the cooling mechanism described above.

[0015] Beneficial effects: This application provides a cooling mechanism and a material feeding device for kraft paper bag production.

[0016] 1. Because the cooling chamber of the rotating roller contains coolant, the temperature of the entire rotating roller is low, and it is not easy to generate heat when rubbing against kraft paper. In addition, when a small amount of heat is generated, the coolant cools it down, thereby preventing uneven quality caused by temperature difference and improving the quality of subsequent paper bag production.

[0017] 2. The cooperation of the first expansion member and the second expansion member facilitates the loading and unloading of raw material rollers and enables the limiting and fixing of raw material rollers of various specifications. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the cooling mechanism and kraft paper bag production feeding device provided in the embodiments of this application;

[0020] Figure 2 A schematic diagram of the raw material placement component structure provided for an embodiment of this application;

[0021] Figure 3 A schematic diagram illustrating the connection relationship between the second expansion member and the pushing member provided in this application embodiment;

[0022] Figure 4 A schematic diagram of the second expansion member structure provided for an embodiment of this application;

[0023] Figure 5 A schematic diagram of the feeding assembly structure provided for an embodiment of this application;

[0024] Figure 6 This is a cross-sectional view of the rotating roller provided in an embodiment of this application.

[0025] In the diagram: 10-Raw material placement assembly; 110-Bracket; 120-First expansion component; 130-Push component; 131-Handwheel; 132-Threaded rod; 140-Second expansion component; 141-Expansion claw; 142-Expansion spring; 150-Raw material roller; 20-Discharge assembly; 210-U-shaped frame; 220-Rotating roller; 221-Liquid cooling cavity; 230-Pressure limiting component; 231-Cylinder; 232-Pressure roller; 240-Drive component; 250-Bearing roller; 260-Separating ring. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0027] Please see Figures 1-6 This application provides a cooling mechanism, including a raw material placement assembly 10 and a material discharge assembly 20.

[0028] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4The raw material placement assembly 10 includes two supports 110 and a raw material roller 150. A first expansion member 120 is rotatably mounted on one support 110. Specifically, a rotating shaft is rotatably connected to the two supports 110 to realize the rotation of the raw material roller 150. A movable second expansion member 140 is mounted on the other support 110. Both ends of the raw material roller 150 are detachably connected to the opposite surfaces of the first expansion member 120 and the second expansion member 140, respectively. During the production of kraft paper bags, one end of the raw material roller 150 is inserted into the outside of the first expansion member 120. Then, the second expansion member 140 is adjusted and pushed into the other end of the raw material roller 150 to limit and fix the raw material roller 150. The cooperation of the first expansion member 120 and the second expansion member 140 facilitates the loading and unloading of the raw material roller 150 and can limit and fix raw material rollers 150 of various specifications.

[0029] In this embodiment, a pusher 130 is mounted on the second expander 140, and the pusher 130 is screwed to a bracket 110. The pusher 130 includes a handwheel 131, which is fixedly connected to a threaded rod 132. The top end of the threaded rod 132 is screwed to a bracket 110, and the second expander 140 is fixedly connected to the threaded rod 132. Specifically, the first expander 120 and the second expander 140 have the same structure. The threaded rod 132 is screwed through a rotating shaft, and a connecting rod is fixedly connected to another rotating shaft. Each expansion claw 141 of the first expander 120 is mounted on the connecting rod. The second expander 140 includes expansion claws 141, each of which is arranged in a ring array outside the threaded rod 132. An expansion spring 142 is connected between each expansion claw 141 and the threaded rod 132, and each expansion claw 141 expands inside the raw material roller 150. The angle between each expansion claw 141 and the threaded rod 132 is 30°-45°. When one end of the raw material roller 150 has been inserted into the outside of the first expansion member 120, the raw material roller 150 is lifted, and then the handwheel 131 is turned. The designed threaded rod 132 rotates, thereby driving each expansion claw 141 into the interior of the raw material roller 150. At this time, the raw material roller 150 is fixed under the action of the expansion spring 142.

[0030] Please see Figure 1 , Figure 5 and Figure 6The feeding assembly 20 includes a U-shaped frame 210, on which a rotating roller 220 is rotatably mounted. Specifically, a driving component 240 is installed on the U-shaped frame 210, and the driving component 240 is connected to the rotating roller 220, driving the rotating roller 220 to rotate. The rotating roller 220 has a liquid cooling chamber 221 inside, filled with a sufficient amount of cooling liquid. When the paper for producing kraft paper bags is conveyed on the rotating roller 220, the coolant inside the cooling chamber keeps the temperature of the entire rotating roller 220 low, preventing it from overheating during friction with the kraft paper. Furthermore, if a small amount of heat is generated, the coolant cools it down, thus preventing uneven quality due to temperature differences and improving the quality of subsequent paper bag production.

[0031] In this embodiment, a load-bearing roller 250 is disposed inside the liquid cooling cavity 221 of the rotating roller 220, and a partition ring 260 is equidistantly sleeved on the outside of the load-bearing roller 250. The arrangement of the load-bearing roller 250 and the partition ring 260 increases the stability of the rotating roller 220 when conveying materials.

[0032] In the specific setup, the U-shaped frame 210 is still equipped with an adjustable pressing limit member 230, and the pressing limit member 230 is located above a rotating roller 220. The pressing limit member 230 includes a cylinder 231 and a pressing roller 232. The cylinder 231 is installed at both ends of the U-shaped frame 210, and the two ends of the pressing roller 232 are respectively connected to the cylinder rod ends of the two cylinders 231, and the pressing roller 232 is in contact with the upper surface of the kraft paper.

[0033] Please see Figures 1-6 This application also provides a kraft paper bag production feeding device, including the aforementioned cooling mechanism. The kraft paper for kraft paper bag production is fed into the device for subsequent production. When the paper for kraft paper bags is conveyed on the rotating roller 220, the cooling chamber of the rotating roller 220 contains coolant, keeping the temperature of the entire rotating roller 220 low. This prevents overheating during friction with the kraft paper, and if a small amount of heat is generated, the coolant cools it down, thus preventing uneven quality due to temperature differences and improving the quality of subsequent paper bag production.

[0034] Working principle of the cooling mechanism and the kraft paper bag production feeding device:

[0035] In the production of kraft paper bags, one end of the raw material roller 150 is inserted into the outside of the first expansion member 120. Then, the second expansion member 140 is adjusted and pushed into the other end of the raw material roller 150 to limit and fix the raw material roller 150. The cooperation of the first expansion member 120 and the second expansion member 140 facilitates the feeding and unloading of the raw material roller 150 and allows for the limiting and fixing of raw material rollers 150 of various specifications. When the paper for producing kraft paper bags is conveyed on the rotating roller 220, the temperature of the entire rotating roller 220 remains low due to the coolant inside its cooling chamber. This prevents the roller from overheating during friction with the kraft paper, and if a small amount of heat is generated, the coolant cools it down, thus preventing uneven quality caused by temperature differences and improving the quality of subsequent paper bag production.

[0036] It should be noted that the specific models and specifications of the aforementioned drive component 240 and cylinder 231 need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0037] The power supply and operating principle of the drive unit 240 and cylinder 231 are clear to those skilled in the art and will not be described in detail here. The routine operation of the drive unit 240 and cylinder 231 is a publicly available technical means and is clear to those skilled in the art, so it will not be described in detail here.

[0038] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. A cooling mechanism, characterized in that, include The raw material placement assembly (10) includes two supports (110) and a raw material roller (150). A first expansion member (120) is rotatably disposed on one of the supports (110), and a movable second expansion member (140) is disposed on the other support (110). The two ends of the raw material roller (150) are detachably connected to the opposite surfaces of the first expansion member (120) and the second expansion member (140), respectively. The feeding assembly (20) includes a U-shaped frame (210), on which a rotating roller (220) is rotatably mounted. The rotating roller (220) has a liquid cooling cavity (221) inside, and the liquid cooling cavity (221) is filled with coolant.

2. The cooling mechanism according to claim 1, characterized in that, The second expansion member (140) is equipped with a pusher (130), and the pusher (130) is screwed to one of the brackets (110).

3. A cooling mechanism according to claim 2, characterized in that, The pusher (130) includes a handwheel (131), which is fixedly connected to a threaded rod (132). The top end of the threaded rod (132) is screwed to a bracket (110), and the second expansion member (140) is fixedly connected to the threaded rod (132).

4. A cooling mechanism according to claim 3, characterized in that, The second expansion member (140) includes expansion claws (141), each of the expansion claws (141) is arranged in a ring array on the outside of the threaded rod (132), and each of the expansion claws (141) is connected to the threaded rod (132) by an expansion spring (142), and each of the expansion claws (141) expands inside the raw material roller (150).

5. A cooling mechanism according to claim 4, characterized in that, The angle between each of the expansion claws (141) and the threaded rod (132) is 30°-45°.

6. A cooling mechanism according to claim 1, characterized in that, The rotating roller (220) is located inside the liquid cooling cavity (221) and a load-bearing roller (250) is provided. The load-bearing roller (250) is provided with partition rings (260) at equal intervals on the outside.

7. A cooling mechanism according to claim 1, characterized in that, The U-shaped frame (210) is also provided with an adjustable clamping limit member (230), and the clamping limit member (230) is located above one of the rotating rollers (220).

8. A material feeding device for kraft paper bag production, characterized in that, include The cooling mechanism according to any one of claims 1-7.

Images