Side edge conveying device for carton sealing machine

Abstract

The side edge conveying device for the carton sealing machine comprises two opposite conveying belt sets, each conveying belt set comprises a machine shell, a driven wheel and a driving wheel are arranged in the machine shell, a conveying belt is connected between the driven wheel and the driving wheel, a connecting shaft penetrating through the machine shell is arranged at the bottom of the driving wheel, and the bottom of the connecting shaft is connected with the machine shell. A bevel gear set is arranged at the end of the connecting shaft and connected with a driving mechanism, a positive and negative tooth worm is connected to the lower portions of the conveying belt sets, the two conveying belt sets are connected with a positive tooth section and a negative tooth section of the positive and negative tooth worm respectively, and the conveying belt sets are further connected with supporting rods. The distance between the two conveying belt sets is adjusted through the positive and negative tooth worm, and the two conveying belt sets are prevented from being opened by the box body through self-locking of the worm structure. Meanwhile, the supporting rod is used for bearing, and the single driving motor is used, so that the stability of the equipment is improved while the weight of the equipment is reduced, and the vibration condition of the equipment is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of packaging equipment technology, and specifically relates to a side conveying device for a carton sealing machine. Background Technology

[0002] In the food production industry, cardboard boxes are commonly used for packaging and transporting food, and the sealing of these boxes is typically done by a carton sealing machine. Existing carton sealing machines mainly rely on two sets of side conveyors mounted above the machine's non-powered conveyor belt to propel the carton forward and seal it. Because the two sets of side conveyors need to accommodate cartons of different sizes, a spacing adjustment mechanism is installed between them. Current spacing adjustment mechanisms mainly rely on lead screws and ball bearing nuts. During operation, the two sets of side conveyors can be pushed outwards by slightly wider cartons, leading to carton misalignment and insufficient transmission friction, affecting sealing quality. Furthermore, each side conveyor belt is driven by a motor. The lead screw, in addition to serving as an adjustment component, also needs to support the two sets of side conveyors and the drive motor. This results in the lead screw bearing a significant weight, increasing vibration during conveyor belt operation and accelerating wear on the lead screw and bearings, requiring regular maintenance and replacement of worn parts. Utility Model Content

[0003] To overcome the shortcomings and problems of existing technologies, improve the stability of equipment operation, and ensure the sealing quality, this utility model provides a side conveying device for a carton sealing machine.

[0004] The utility model is realized through the following technical solutions:

[0005] A side conveying device for a carton sealing machine includes two sets of oppositely arranged conveyor belts. Each conveyor belt set includes a housing, in which a driven wheel and a driving wheel are disposed. A conveyor belt is connected between the driven wheel and the driving wheel. A connecting shaft penetrating the housing is provided at the bottom of the driving wheel, and a bevel gear set is provided at the end of the connecting shaft. The bevel gear set is connected to a drive mechanism. A forward and reverse toothed worm gear is connected below each conveyor belt set. The two sets of conveyor belts are respectively connected to the forward toothed section and the reverse toothed section of the forward and reverse toothed worm gear. A support rod is also connected to each conveyor belt set.

[0006] The bottom of the housing is provided with a connecting rod, which is connected to a support rod. The side wall of the connecting rod is provided with protruding teeth that cooperate with the forward and reverse toothed worm gear.

[0007] The support rod and the forward and reverse toothed worm gears are provided in twos, and one end of the two forward and reverse toothed worm gears is connected by a synchronous chain. One end of one of the forward and reverse toothed worm gears is provided with a throttle handle.

[0008] The bevel gear set includes a horizontal bevel gear disposed at the end of the connecting shaft, a vertical bevel gear connected to the horizontal bevel gear, an extension section on the back of the vertical bevel gear, a fixing ring connected to the extension section, the fixing ring being connected to the bottom of the housing, and a bearing being disposed between the extension section and the fixing ring.

[0009] The drive mechanism includes a drive motor, which is connected to a drive rod, and the drive rod is connected to a vertical bevel gear.

[0010] The outer wall of the drive rod is provided with a groove, and the vertical bevel gear is provided with a sliding hole that matches the drive rod. The inner wall of the sliding hole is provided with a protrusion that matches the groove.

[0011] Both the driving wheel and the driven wheel are provided with anti-detachment grooves on their wheel walls, and the inner wall of the conveyor belt is provided with anti-detachment protrusions that cooperate with the anti-detachment grooves.

[0012] This invention adjusts the spacing between two sets of conveyor belts through the cooperation of a worm gear with both positive and negative teeth and convex teeth. The self-locking mechanism of the worm gear prevents the two sets of conveyor belts from being pushed apart by the housing. Simultaneously, this invention uses a support rod as a load-bearing component and reduces the number of drive motors to one, effectively reducing the weight of the equipment, improving its stability, and minimizing vibration. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0014] Figure 2 This is a partial structural schematic diagram of the cone of this utility model;

[0015] Figure 3 This is a schematic diagram of the bevel gear set structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the connecting rod structure of this utility model.

[0017] In the diagram: 100-conveyor belt assembly, 110-machine housing, 120-drive wheel, 130-driven wheel, 140-conveyor belt, 141-anti-detachment groove, 142-anti-detachment protrusion, 143-connecting shaft, 150-support rod, 160-positive and negative toothed worm gear, 161-throttle, 162-synchronous chain, 170-connecting rod, 171-convex tooth, 200-bevel gear assembly, 210-horizontal bevel gear, 220-vertical bevel gear, 221-extension section, 222-sliding hole, 223-protrusion, 230-fixed ring, 231-bearing, 300-drive mechanism, 310-drive motor, 320-drive rod, 321-groove. Detailed Implementation

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1 As shown, a side conveying device for a carton sealing machine includes two sets of oppositely arranged conveyor belt groups 100. The carton moves between the two sets of conveyor belt groups 100. Each conveyor belt group 100 includes a housing 110, in which a driven wheel 130 and a driving wheel 120 are provided. A conveyor belt 140 is connected between the driven wheel 130 and the driving wheel 120. The driving wheel 120 is used to drive the conveyor belt 140 to operate. Both the driving wheel 120 and the driven wheel 130 have anti-detachment grooves 141 on their wheel walls. The inner wall of the conveyor belt 140 has anti-detachment protrusions 142 that cooperate with the anti-detachment grooves 141. The anti-detachment protrusions 142 and the anti-detachment grooves 141 are used to prevent the conveyor belt 140 from deviating during operation.

[0020] like Figure 2 , 4 As shown, a forward and reverse toothed worm gear 160 is connected below the conveyor belt assembly 100. The two conveyor belt assemblies 100 are respectively connected to the forward and reverse toothed sections of the forward and reverse toothed worm gear 160. By rotating the forward and reverse toothed worm gear 160, the two conveyor belt assemblies 100 can be driven to move closer or further apart. The conveyor belt assembly 100 is also connected to a support rod 150, which is used to support the weight of the equipment, prevent the forward and reverse toothed worm gear 160 from bearing the weight, reduce the wear of the forward and reverse toothed worm gear 160 and the connecting parts, and reduce the occurrence of vibration. A connecting rod 170 is provided at the bottom of the housing 110. The connecting rod 170 is connected to the support rod 150. The side wall of the connecting rod 170 is provided with a tooth 171 that mates with the forward and reverse toothed worm gear 160. When the forward and reverse toothed worm gear 160 rotates, the tooth 171 moves along the axial direction of the forward and reverse toothed worm gear 160, thereby driving the conveyor belt assembly 100 to move through the connecting rod 170, realizing the spacing adjustment. The convex tooth 171 and the worm gear 160 with opposite teeth cooperate to achieve self-locking of the worm gear structure. When the worm gear 160 with opposite teeth is not rotating, the convex tooth 171 cannot move, which can prevent the conveyor belt assembly 100 from being displaced by the box. Since the conveyor belt assembly 100 is relatively long, there are two of each of the support rods 150 and the worm gear 160 with opposite teeth. The two support rods 150 are respectively connected to both ends of the conveyor belt assembly 100 to ensure load-bearing balance. The two worm gears with opposite teeth 160 are located on one side of the two support rods 150, which facilitates connection with the connecting rod 170. One end of the two worm gears with opposite teeth 160 is connected by a synchronous chain 162. One end of one of the worm gears with opposite teeth 160 is equipped with a handle 161. By rotating the handle 161, one worm gear with opposite teeth 160 can be driven to rotate, and the other worm gear with opposite teeth 160 can be driven to rotate through the synchronous chain 162, causing both ends of the conveyor belt assembly 100 to move simultaneously.

[0021] like Figure 1, 3 As shown, the bottom of the drive wheel 120 is provided with a connecting shaft 143 that penetrates the housing 110. A bevel gear set 200 is provided at the end of the connecting shaft 143. The bevel gear set 200 is connected to a drive mechanism 300. The drive mechanism 300 provides power for the rotation of the drive wheel 120, while the bevel gear set 200 transmits the force provided by the drive mechanism 300 to the connecting shaft 143, thereby driving the drive wheel 120 to rotate. The bevel gear set 200 includes a horizontal bevel gear 210 disposed at the end of the connecting shaft 143. The horizontal bevel gear 210 meshes with a vertical bevel gear 220. The back of the vertical bevel gear 220 is provided with an extension section 221, which is connected to a retaining ring 230. The retaining ring 230 is connected to the bottom of the housing 110. The fixing ring 230 is used to install the vertical bevel gear 220. When adjusting the spacing of the conveyor belt group 100, the vertical bevel gear 220 moves with the conveyor belt group 100 and always remains connected to the horizontal bevel gear 210. A bearing 231 is provided between the extension section 221 and the fixing ring 230. The bearing 231 can prevent the fixing ring 230 from affecting the rotation of the vertical bevel gear 220.

[0022] like Figure 1 , 3 As shown, the drive mechanism 300 includes a drive motor 310, which is connected to a drive rod 320. The drive rod 320 is connected to a vertical bevel gear 220. The outer wall of the drive rod 320 has a groove 321, and the vertical bevel gear 220 has a sliding hole 222 that matches the drive rod 320. The inner wall of the sliding hole 222 has a protrusion 223 that matches the groove 321. The vertical bevel gear 220 moves on the drive rod 320 through the sliding hole 222, while the groove 321 and the protrusion 223 remain connected. Therefore, when the spacing between the two sets of conveyor belts 100 is adjusted, the vertical bevel gear 220 moves with the conveyor belts 100, and the drive rod 320 can also drive the vertical bevel gear 220 to rotate, thereby driving the drive wheel 120 to rotate.

[0023] It should be noted that in this embodiment, the support rod 150, the forward and reverse toothed worm gear 160, and the drive mechanism 300 are all mounted on the bracket of the existing carton sealing machine. The non-powered conveyor belt of the existing carton sealing machine is located below the conveyor belt group 100, while the support rod 150, the forward and reverse toothed worm gear 160, and the drive mechanism 300 are located below the non-powered conveyor belt.

[0024] The working principle of this embodiment is as follows: First, rotate the forward and reverse toothed worm gear 160 according to the size of the box to adjust the spacing between the two sets of conveyor belts 100 to a suitable position. Then, place the box on the box sealing machine and put it into the entrance between the two sets of conveyor belts 100. The drive mechanism 300 then drives the drive wheel 120 of the two sets of conveyor belts 100 to rotate. The drive wheel 120 drives the conveyor belt 140 to move, thereby driving the box forward to complete the sealing and glue sealing work.

[0025] The above embodiments are preferred implementations of this utility model and are not intended to limit this utility model. Any obvious substitutions are within the protection scope of this utility model without departing from its inventive concept.

Claims

1. A side conveying device for a carton sealing machine, comprising two sets of oppositely arranged conveyor belts (100), characterized in that: The conveyor belt assembly (100) includes a housing (110), in which a driven wheel (130) and a driving wheel (120) are provided. A conveyor belt (140) is connected between the driven wheel (130) and the driving wheel (120). The bottom of the driving wheel (120) is provided with a connecting shaft (143) that passes through the housing (110). The end of the connecting shaft (143) is provided with a bevel gear set (200). The bevel gear set (200) is connected to a drive mechanism (300). A forward and reverse toothed worm gear (160) is connected below the conveyor belt assembly (100). The two conveyor belt assemblies (100) are respectively connected to the forward toothed section and the reverse toothed section of the forward and reverse toothed worm gear (160). The conveyor belt assembly (100) is also connected to a support rod (150).

2. The side conveying device for a carton sealing machine according to claim 1, characterized in that: The bottom of the housing (110) is provided with a connecting rod (170), which is connected to the support rod (150). The side wall of the connecting rod (170) is provided with a tooth (171) that is connected to the worm gear (160) with a toothed tooth.

3. The side conveying device for a carton sealing machine according to claim 2, characterized in that: The support rod (150) and the forward and reverse toothed worm gear (160) are each provided in two parts. One end of the two forward and reverse toothed worm gears (160) is connected by a synchronous chain (162). One end of one of the forward and reverse toothed worm gears (160) is provided with a throttle (161).

4. The side conveying device for a carton sealing machine according to claim 3, characterized in that: The bevel gear set (200) includes a horizontal bevel gear (210) disposed at the end of the connecting shaft (143), the horizontal bevel gear (210) is connected to a vertical bevel gear (220), the back of the vertical bevel gear (220) is provided with an extension section (221), the extension section (221) is connected to a fixing ring (230), the fixing ring (230) is connected to the bottom of the housing (110), and a bearing (231) is provided between the extension section (221) and the fixing ring (230).

5. A side conveying device for a carton sealing machine according to claim 4, characterized in that: The drive mechanism (300) includes a drive motor (310), the drive motor (310) is connected to a drive rod (320), and the drive rod (320) is connected to a vertical bevel gear (220).

6. A side conveying device for a carton sealing machine according to claim 5, characterized in that: The outer wall of the drive rod (320) is provided with a groove (321), and the vertical bevel gear (220) is provided with a sliding hole (222) that matches the drive rod (320). The inner wall of the sliding hole (222) is provided with a protrusion (223) that matches the groove (321).

7. A side conveying device for a carton sealing machine according to any one of claims 1-6, characterized in that: Both the drive wheel (120) and the driven wheel (130) are provided with anti-detachment grooves (141), and the inner wall of the conveyor belt (140) is provided with anti-detachment protrusions (142) that cooperate with the anti-detachment grooves (141).

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