Conveying device suitable for food boxes of different sizes

Abstract

The invention discloses a conveying device suitable for food boxes of different sizes, and belongs to the technical field of conveying equipment.The conveying device comprises a bottom plate, distance adjusting sliding frames are symmetrically installed on the bottom plate in a sliding mode, each distance adjusting sliding frame is provided with a conveying assembly, a supporting assembly and a transferring assembly, and by arranging the conveying assemblies, the distance between two conveying belts can be adjusted; accordingly, the food box conveying device can adapt to conveying of food boxes of different sizes, universality and flexibility of the device are improved, auxiliary supporting can be provided for the food boxes in the conveying process by arranging the supporting assembly under the action of a supporting square plate, it is guaranteed that the food boxes can be conveyed horizontally all the time, and the conveying efficiency is improved. The food boxes are prevented from inclining or being damaged due to deformation of the conveying belt, through mutual cooperation of the transferring assembly and the supporting assembly, rapid transferring of the supporting square plate can be achieved, and therefore auxiliary supporting can be continuously carried out on the food boxes conveyed by the conveying belt.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying equipment, and in particular to a conveying device suitable for food boxes of different sizes. Background Art

[0002] In the food processing and logistics industries, the conveying device is a key equipment to ensure the efficient and safe transportation of food boxes. However, the existing conveying devices usually can only adapt to food boxes of specific sizes, lacking versatility and flexibility. When facing food boxes of different sizes, it is necessary to frequently replace or adjust the equipment, which not only increases the complexity of operation, but also reduces the production efficiency and brings additional costs. Moreover, during the conveying process, the food boxes are prone to tilt, shake or even be damaged due to the deformation of the conveyor belt or insufficient support, affecting the safety and integrity of the food. Therefore, the present invention provides a conveying device suitable for food boxes of different sizes. Summary of the Invention

[0003] Aiming at the defects in the prior art, the present invention provides a conveying device suitable for food boxes of different sizes, which overcomes the problems that the conveying requirements of food boxes of different sizes cannot be met, and the food boxes are prone to tilt, shake or even be damaged due to the deformation of the conveyor belt or insufficient support.

[0004] To achieve the above object, the present invention provides the following technical solution: A conveying device suitable for food boxes of different sizes, including a bottom plate, on which distance-adjusting sliding frames are symmetrically and slidably installed. On each distance-adjusting sliding frame, a conveying component, a supporting component and a transferring component are provided. The conveying component includes a conveyor belt. The supporting component includes two first supporting long strips and two second supporting long strips. The two first supporting long strips and the two second supporting long strips are symmetrically and fixedly arranged on the distance-adjusting sliding frame. A plurality of supporting square plates are evenly arranged between the first supporting long strip and the corresponding second supporting long strip. The supporting square plates are used to support the inner side of the conveyor belt. On the distance-adjusting sliding frame, friction wheels are symmetrically and rotatably installed. Friction strip plates are fixedly arranged on the supporting square plates. The friction wheels and the friction strip plates are used to move the supporting square plates. The transferring component includes two cross-shaped rotating plates symmetrically and rotatably installed on the distance-adjusting sliding frame. Transferring sliding plates are slidably installed on the four arms of each cross-shaped rotating plate. One-word plates are fixedly arranged on the transferring sliding plates. Chute grooves cooperating with the one-word plates are arranged on the lower surfaces of the supporting square plates. The cross-shaped rotating plates and the transferring sliding plates are used to realize the transfer of the supporting square plates.

[0005] Further, a double-headed threaded screw rod is rotatably installed on the bottom plate. The threads at both ends of the double-headed threaded screw rod respectively form a screw pair with the corresponding distance-adjusting sliding frames. Transmission shafts are symmetrically and rotatably installed on the distance-adjusting sliding frames. Conveying wheels are fixedly installed on the transmission shafts. The conveyor belt is arranged on the corresponding two conveying wheels.

[0006] Further, a double-headed spline shaft is rotatably installed on the bottom plate. One transmission shaft in each of the two transportation components forms a spline sliding fit with the double-headed spline shaft, and the two double-headed spline shafts that form a spline sliding fit with the double-headed spline shaft are arranged oppositely.

[0007] Further, the supporting square plate is slidably fitted with the corresponding supporting long plate one and supporting long plate two. When the supporting square plate is located between the supporting long plate one and the supporting long plate two, the adjacent two supporting square plates are in contact. The supporting square plate located between the supporting long plate one and the supporting long plate two closest to the conveyor belt is directly below the inner side of the conveyor belt. The supporting square plate is used for auxiliary support when the conveyor belt conveys items.

[0008] Further, there is friction between the friction strip plate and the friction wheel when they are in contact. The widths of the friction strip plate and the supporting square plate are equal. When the supporting square plate is located between the supporting long plate one and the supporting long plate two, the corresponding friction strip plate and the adjacent friction strip plate are in contact.

[0009] Further, a limiting circular block is fixedly arranged on the lower surface of the transfer sliding plate. Springs are arranged between the limiting circular block and the cross-shaped rotating plate. When the transfer sliding plate moves to the position farthest from the lower surface of the bottom plate, the upper surface of the transfer sliding plate and the lower surface of the supporting square plate are on the same plane.

[0010] Further, sector-shaped strip plates are symmetrically and fixedly arranged on both sides of the distance-adjusting sliding frame. Positioning sliding frames are slidably installed on the distance-adjusting sliding frames. Arc-shaped strip plates are also symmetrically and fixedly arranged on both sides of the positioning sliding frames. The sector-shaped strip plates and the arc-shaped strip plates on the same side of the distance-adjusting sliding frame are arranged at intervals. When the two sector-shaped strip plates and the two arc-shaped strip plates on the same side of the distance-adjusting sliding frame are joined, a complete limiting ring plate is formed. Chutes for cooperating with the limiting ring plate are arranged on the limiting circular blocks. The axis of the limiting ring plate and the center line of the cross-shaped rotating plate are on the same straight line.

[0011] Further, a first transmission group is arranged between the two friction wheels on the same distance-adjusting sliding frame. A first linkage group is arranged between the two first transmission groups. A second transmission group is arranged between the two cross-shaped rotating plates on the same distance-adjusting sliding frame. A second linkage group is arranged between the two second transmission groups.

[0012] Further, L-shaped positioning plates are fixedly installed on the lower surfaces of the positioning sliding frames. A positioning electric cylinder is fixedly installed on the bottom plate. The L-shaped positioning plates are slidably fitted with the end parts of the piston rods of the positioning electric cylinders.

[0013] The beneficial effects of the present invention compared with the prior art are as follows: (1) By setting the transportation component, the present invention can adjust the distance between the two conveyor belts, so as to adapt to the transportation of food boxes of different sizes, improving the versatility and flexibility of the device. (2) By setting the support component, under the action of the support square plate, the present invention can provide auxiliary support for the food box during transportation, ensuring that the food box can always be transported horizontally and preventing the food box from tilting or being damaged due to the deformation of the conveyor belt. (3) Through the mutual cooperation of the transfer component and the support component, the present invention can achieve the rapid transfer of the support square plate, so as to continuously provide auxiliary support for the food box transported by the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the structure at the distance-adjusting carriage of the present invention.

[0016] Figure 3 is Figure 2 a partial enlarged schematic view of A in

[0017] Figure 4 It is a schematic diagram of the structure at the support square plate of the present invention.

[0018] Figure 5 is Figure 4 a partial enlarged schematic view of B in

[0019] Figure 6 It is a schematic diagram of the structure at the position-adjusting carriage of the present invention.

[0020] Figure 7 is Figure 6 a partial enlarged schematic view of C in

[0021] Figure 8 is Figure 6 a partial enlarged schematic view of D in

[0022] Figure 9 It is a top view of the structure at the cross-shaped rotating plate of the present invention.

[0023] Figure 10 It is a schematic diagram of the structure at the cross-shaped rotating plate of the present invention.

[0024] Figure 11 It is a schematic diagram of the structure at the conveyor belt of the present invention.

[0025] Figure 12 is Figure 11 a partial enlarged schematic view of E in

[0026] Reference numerals: 101 - bottom plate; 102 - conveyor belt; 103 - distance - adjusting carriage; 104 - transmission shaft; 105 - distance - adjusting motor; 106 - double - headed threaded lead screw; 107 - conveyor wheel; 108 - double - headed spline shaft; 109 - conveyor motor; 110 - supporting square plate; 111 - L - shaped position - adjusting plate; 112 - first belt pulley; 113 - first transmission belt; 114 - friction wheel; 115 - cross - rotating plate; 116 - transfer slide plate; 117 - one - character plate; 118 - sector - shaped strip plate; 119 - limiting round block; 120 - arc - shaped strip plate; 121 - friction strip plate; 122 - first supporting long strip plate; 123 - second supporting long strip plate; 124 - position - adjusting carriage; 125 - second transmission belt; 126 - second belt pulley; 127 - first gear box; 128 - second gear box; 129 - shifting motor; 130 - first telescopic rod; 131 - transfer motor; 132 - second telescopic rod; 133 - position - adjusting electric cylinder. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] Embodiment: Refer to Figures 1-12 , a conveying device applicable to food boxes of different sizes, including a bottom plate 101. Distance - adjusting carriages 103 are symmetrically and slidably installed on the bottom plate 101. A double - headed threaded lead screw 106 is rotatably installed on the bottom plate 101. The threads at both ends of the double - headed threaded lead screw 106 respectively form a screw pair with the corresponding distance - adjusting carriages 103. A distance - adjusting motor 105 is fixedly installed on the bottom plate 101. The output shaft of the distance - adjusting motor 105 is fixedly connected to the double - headed threaded lead screw 106. Starting the distance - adjusting motor 105 drives the double - headed threaded lead screw 106 to rotate, so that the two distance - adjusting carriages 103 move towards each other or move away from each other.

[0029] Transport components are arranged on both distance - adjusting carriages 103. The transport components include a conveyor belt 102. Transmission shafts 104 are symmetrically and rotatably installed on the distance - adjusting carriages 103. Conveyor wheels 107 are fixedly installed on the transmission shafts 104. The conveyor wheels 107 are located at the ends of the transmission shafts 104 closest to the opposite distance - adjusting carriages 103. The conveyor belt 102 is arranged on the corresponding two conveyor wheels 107. A double - headed spline shaft 108 is also rotatably installed on the bottom plate 101. One of the transmission shafts 104 in each of the two transport components forms a spline sliding fit with the double - headed spline shaft 108. The two double - headed spline shafts 108 that form a spline sliding fit with the double - headed spline shaft 108 are arranged oppositely. The transmission shafts 104 that do not contact the double - headed spline shaft 108 are slidably fitted with the bottom plate 101. A conveyor motor 109 is fixedly installed on the bottom plate 101. Belt pulleys are fixedly installed on the output shaft of the conveyor motor 109 and on the double - headed spline shaft 108. A belt is arranged between the belt pulley on the output shaft of the conveyor motor 109 and the belt pulley on the double - headed spline shaft 108.

[0030] When driving the two distance-adjusting carriages 103 to move towards each other or away from each other, the transmission shaft 104 engaged with the double-headed spline shaft 108 slides relative to the double-headed spline shaft 108, and the transmission shaft 104 not engaged with the double-headed spline shaft 108 slides relative to the bottom plate 101. Start the transport motor 109, that is, make the double-headed spline shaft 108 rotate. Under the action of the double-headed spline shaft 108, the corresponding two transmission shafts 104 rotate synchronously, that is, make the transport wheels 107 rotate. Under the action of the conveyor belt 102, the transmission shaft 104 and the transport wheels 107 both rotate synchronously, and then make the conveyor belt 102 rotate.

[0031] Support assemblies are provided on the distance-adjusting carriages 103. The support assemblies include two first support long plates 122 and two second support long plates 123. The two first support long plates 122 and the two second support long plates 123 are symmetrically and fixedly arranged on the distance-adjusting carriages 103. A plurality of support square plates 110 are evenly arranged between the first support long plate 122 and the corresponding second support long plate 123. When each arm of the cross-shaped rotating plate 115 engages with the support square plate 110, they are in sliding fit. The support square plate 110 is in sliding fit with the corresponding first support long plate 122 and second support long plate 123. When the support square plate 110 is located between the first support long plate 122 and the second support long plate 123, adjacent two support square plates 110 are in contact. The support square plate 110 between the first support long plate 122 and the second support long plate 123 closest to the conveyor belt 102 is located directly below the inner side of the conveyor belt 102. The support square plate 110 is used to assist in supporting the items conveyed by the conveyor belt 102.

[0032] Friction wheels 114 are also symmetrically and rotatably installed on the distance-adjusting carriages 103. Friction strip plates 121 are fixedly arranged on the support square plates 110. The friction wheels 114 and the friction strip plates 121 are used to move the support square plates 110. When the friction strip plates 121 are in contact with the friction wheels 114, there is friction between them. The widths of the friction strip plates 121 and the support square plates 110 are equal. When the support square plate 110 is located between the first support long plate 122 and the second support long plate 123, the corresponding friction strip plates 121 are in contact with adjacent friction strip plates 121.

[0033] A first transmission group is arranged between two friction wheels 114 on the same distance-adjusting carriage 103. The first transmission group includes a first transmission pulley 112, a first transmission belt 113, and two belt pulleys. The first transmission pulley 112 is rotatably installed on the corresponding distance-adjusting carriage 103. The two belt pulleys are respectively fixedly installed on the corresponding friction wheels 114. The first transmission belt 113 is arranged between the first transmission pulley 112 and the two belt pulleys. A first linkage group is arranged between the two first transmission groups. The first linkage group includes a first telescopic rod 130 and two second gearboxes 128. The two second gearboxes 128 are respectively fixedly installed on the corresponding distance-adjusting carriages 103. The output end of the second gearbox 128 is fixedly connected to the first transmission pulley 112, and the input end of the second gearbox 128 is fixedly connected to the first telescopic rod 130. Two bevel gears are arranged in the second gearbox 128, and the two bevel gears in the second gearbox 128 mesh to form a gear pair. A displacement motor 129 is fixedly installed on one of the two distance-adjusting carriages 103, and the output shaft of the displacement motor 129 is fixedly connected to the corresponding first transmission pulley 112.

[0034] When the two distance-adjusting carriages 103 move relative to each other, the first telescopic rod 130 automatically expands and contracts. The displacement motor 129 is started to drive the corresponding first transmission pulley 112 to rotate. Under the action of the second gearbox 128 and the first telescopic rod 130, the two first transmission pulleys 112 rotate synchronously. Then, under the action of the first transmission group, the 4 friction wheels 114 all rotate synchronously. When the friction strip plate 121 contacts the friction wheel 114, the friction strip plate 121 is moved under the action of the friction wheel 114, and then the supporting square plate 110 is moved synchronously, that is, the supporting square plate 110 is pushed to slide between the first supporting long strip plate 122 and the second supporting long strip plate 123. When the supporting square plate 110 is located inside the conveyor belt 102, the two sides of the food box are placed on the conveyor belt 102. The supporting square plate 110 provides auxiliary support for the conveyor belt 102, that is, provides auxiliary support for the food box. When the conveyor belt 102 conveys the food box, the supporting square plate 110 moves synchronously, that is, provides auxiliary support for the transportation of the food box.

[0035] Transfer components are arranged on the distance-adjusting carriages 103. The transfer components include two symmetrically arranged cross-shaped rotating plates 115 rotatably installed on the distance-adjusting carriages 103. Transfer sliders 116 are slidably installed on the four arms of the cross-shaped rotating plates 115. One-word plates 117 are fixedly arranged on the transfer sliders 116. Chutes cooperating with the one-word plates 117 are arranged on the lower surfaces of the supporting square plates 110. The cross-shaped rotating plates 115 and the transfer sliders 116 are used to realize the transfer of the supporting square plates 110.

[0036] A limiting circular block 119 is fixedly arranged on the lower surface of the transfer slide plate 116. Springs are arranged between the limiting circular block 119 and the cross-shaped rotating plate 115. In the initial position, the springs between the limiting circular block 119 and the cross-shaped rotating plate 115 are not compressed. At this time, the transfer slide plate 116 is located at the position closest to the lower surface of the bottom plate 101. When the transfer slide plate 116 moves to the position farthest from the lower surface of the bottom plate 101, the upper surface of the transfer slide plate 116 and the lower surface of the supporting square plate 110 are on the same plane.

[0037] Sector-shaped strip plates 118 are symmetrically and fixedly arranged on both sides of the distance-adjusting carriage 103. Position-adjusting carriages 124 are slidably mounted on the distance-adjusting carriage 103. Arc-shaped strip plates 120 are also symmetrically and fixedly arranged on both sides of the position-adjusting carriage 124. The sector-shaped strip plates 118 and the arc-shaped strip plates 120 on the same side of the distance-adjusting carriage 103 are arranged at intervals. When the two sector-shaped strip plates 118 and the two arc-shaped strip plates 120 on the same side of the distance-adjusting carriage 103 are joined, a complete limiting ring plate is formed. Sliding grooves matching the limiting ring plate are arranged on the limiting circular block 119. The axis of the limiting ring plate and the center line of the cross-shaped rotating plate 115 are on the same straight line.

[0038] A second transmission group is arranged between the two cross-shaped rotating plates 115 on the same distance-adjusting carriage 103. The second transmission group includes a second transmission belt 125, a second transmission pulley 126, and two belt pulleys. The two belt pulleys are respectively fixedly installed on the corresponding cross-shaped rotating plates 115. The second transmission pulley 126 is rotatably installed on the corresponding distance-adjusting carriage 103. The second transmission belt 125 is arranged between the second transmission pulley 126 and the two belt pulleys. A second linkage group is arranged between the two second transmission groups. The second linkage group includes two first gear boxes 127 and a second telescopic rod 132. The two first gear boxes 127 are respectively fixedly installed on the corresponding distance-adjusting carriages 103. The output end of the first gear box 127 is fixedly connected to the second transmission pulley 126. The input end of the first gear box 127 is fixedly connected to the second telescopic rod 132. Two bevel gears are arranged in the first gear box 127. The two bevel gears in the first gear box 127 mesh to form a gear pair. A transfer motor 131 is fixedly installed on one of the two distance-adjusting carriages 103. The output shaft of the transfer motor 131 is fixedly connected to the corresponding second transmission pulley 126.

[0039] When the two distance-adjusting carriages 103 move relatively, the second telescopic rod 132 automatically expands and contracts. The transfer motor 131 is started to drive the corresponding second transmission pulley 126 to rotate. Under the action of the first gear box 127 and the second telescopic rod 132, the two second transmission pulleys 126 rotate synchronously. Furthermore, under the action of the second transmission group, the 4 cross-shaped rotating plates 115 all rotate synchronously.

[0040] L-shaped positioning plates 111 are fixedly installed on the lower surfaces of the positioning carriages 124. A positioning electric cylinder 133 is fixedly installed on the bottom plate 101. The L-shaped positioning plates 111 are all in sliding fit with the end of the piston rod of the positioning electric cylinder 133. When the positioning electric cylinder 133 is started to drive the two L-shaped positioning plates 111 to move upward synchronously, the two positioning carriages 124 will move upward synchronously. When the two distance-adjusting carriages 103 move relative to each other, the L-shaped positioning plates 111 move relative to the end of the piston rod of the positioning electric cylinder 133.

[0041] In the initial position, the spring between the limit round block 119 and the cross-shaped rotating plate 115 is not compressed. Drive the cross-shaped rotating plate 115 to rotate, so that one of the transfer sliding plates 116 in the cross-shaped rotating plate 115 is parallel to the support square plate 110. There is a support square plate 110 on this transfer sliding plate 116. The chute on this support square plate 110 and the one-way plate 117 on this transfer sliding plate 116 are connected. The transfer sliding plate 116 opposite to this transfer sliding plate 116 is parallel to the support square plate 110 on the other side. There is no transfer sliding plate 116 on this transfer sliding plate 116. At this time, the position of another cross-shaped rotating plate 115 on the distance-adjusting carriage 103 is the same as the position of this cross-shaped rotating plate 115. And there are support square plates 110 on the two transfer sliding plates 116 that are farthest apart on the same distance-adjusting carriage 103. The chute on this support square plate 110 and the one-way plate 117 on this transfer sliding plate 116 are engaged. And at this time, the support square plate 110 on one of the support arms of one of the two cross-shaped rotating plates 115 in the same distance-adjusting carriage 103 is located inside the conveyor belt 102. This cross-shaped rotating plate 115 is located at the end of the conveying direction of the conveyor belt 102. The transfer sliding plate 116 without a support arm on the other cross-shaped rotating plate 115 is located inside the conveyor belt 102. This cross-shaped rotating plate 115 is located at the start of the conveying direction of the conveyor belt 102.

[0042] Start the transfer motor 131 to drive the cross-shaped rotating plate 115 to rotate 90 degrees. At this time, the support square plate 110 on one of the support arms of one of the two cross-shaped rotating plates 115 on the same distance-adjusting carriage 103 rotates to the inside of the conveyor belt 102, and the support square plate 110 on the support arm of the other cross-shaped rotating plate 115 rotates to the position farthest from the conveyor belt 102. At this time, the chute on the limit round block 119 corresponding to the two transfer sliding plates 116 parallel to the support square plate 110 is completely engaged with the arc-shaped strip plate 120, and the limit round block 119 corresponding to the two transfer sliding plates 116 parallel to the support square plate 110 is disengaged from the contact with the fan-shaped strip plate 118. At this time, the other limit round block 119 and the fan-shaped strip plate 118 are in an engaged state.

[0043] Then start the positioning cylinder 133 to drive the two L-shaped positioning plates 111 to move upward synchronously, that is, to make the two positioning carriages 124 move upward synchronously, and further make the 4 arc-shaped strips 120 move upward synchronously, and further make the corresponding 4 transfer slides 116 move upward synchronously. The spring between the limit round block 119 and the cross-shaped rotating plate 115 is compressed. Finally, the upper surface of the moving transfer slide 116 and the lower surface of the supporting square plate 110 located between the first supporting long plate 122 and the second supporting long plate 123 are on the same plane. The supporting square plate 110 of the moving transfer slide 116 contacts the adjacent supporting square plate 110, and the friction strip 121 on the supporting square plate 110 contacts the friction wheel 114. Then start the shifting motor 129 to drive the friction wheel 114 to rotate. Under the action of the friction wheel 114, the friction strip 121 moves along the conveying direction of the conveyor belt 102. The supporting square plate 110 slides relative to the one-word plate 117. Finally, the supporting square plate 110 is disengaged from the engagement with the one-word plate 117. At this time, the supporting square plate 110 corresponding to the first supporting long plate 122 and the second supporting long plate 123 is engaged with the one-word plate 117 on another cross-shaped rotating plate 115, which is the farthest from the supporting square plate 110, and the one-word plate 117 on the transfer slide 116, which is the farthest from the transfer slide 116 corresponding to the cross-shaped rotating plate 115, is engaged with the supporting square plate 110 after the movement.

[0044] Then start the positioning cylinder 133 to make the positioning carriage 124 move downward. Then, under the action of the spring between the limit round block 119 and the transfer slide 116, the corresponding transfer slide 116 moves downward synchronously. The transfer slide 116 with the supporting square plate 110 placed thereon moves downward and engages with the cross-shaped rotating plate 115. Under the action of the cross-shaped rotating plate 115 and the one-word plate 117, the supporting square plate 110 will not move during the transfer process.

[0045] Repeat the above steps to realize the transfer of the supporting square plate 110 from the tail to the end of the conveyor belt 102, so that the supporting square plate 110 can always assist in supporting the food box during the conveying process of the conveyor belt 102.

[0046] Working principle: According to the size of the food box to be conveyed, start the distance adjustment motor 105 to adjust the distance between the two distance adjustment carriages 103, that is, adjust the distance between the two conveyor belts 102, and then start the conveyor motor 109 to drive the two conveyor belts 102 to rotate. While the conveyor belt 102 is rotating, start the displacement motor 129, the transfer motor 131, and the position adjustment cylinder 133, so that the support assembly and the transfer assembly cooperate with each other to realize the transfer of the support square plate 110, so that the support square plate 110 can move synchronously with the conveyor belt 102. Place the food box to be conveyed on the conveyor belt 102 where the support square plate 110 exists below, and then convey the food box through the conveyor belt 102. The support square plate 110 is used to assist in supporting the food box conveyed by the conveyor belt 102, that is, to enable the conveyor belt 102 to always convey the food box horizontally, thereby preventing the food box from being damaged during the conveyance of the conveyor belt 102.

[0047] The present invention is not limited to the above specific embodiments. Those skilled in the art can make various changes starting from the above concepts without creative labor, and all fall within the protection scope of the present invention.

Claims

1. A conveying device suitable for food boxes of different sizes, comprising a bottom plate (101), characterized in that: The base plate (101) is symmetrically slidably mounted with a distance-adjusting carriage (103), and the distance-adjusting carriage (103) is provided with a transport component, a support component, and a transfer component. The transport component includes a conveyor belt (102), and the support component includes two support long strips one (122) and two support long strips two (123). The two support long strips one (122) and the two support long strips two (123) are symmetrically fixedly arranged on the distance-adjusting carriage (103), and a plurality of support square plates (110) are evenly arranged between the support long strips one (122) and the corresponding support long strips two (123). The support square plates (110) are used to support the inner side of the conveyor belt (102). The distance-adjusting carriage (103) is also provided with a plurality of support square plates (110). The scale is rotatably mounted with a friction wheel (114), and a friction strip plate (121) is fixedly mounted on the supporting square plate (110). The friction wheel (114) and the friction strip plate (121) are used to move the supporting square plate (110). The transfer assembly comprises two cross-turn plates (115) symmetrically rotatably mounted on the distance adjustment slide (103). Transfer slide plates (116) are slidably mounted on four arms of the cross-turn plate (115). A straight plate (117) is fixedly mounted on the transfer slide plate (116). The lower surface of the supporting square plate (110) is provided with a slide groove that cooperates with the straight plate (117). The cross-turn plate (115) and the transfer slide plate (116) are used to realize the transfer of the supporting square plate (110).

2. The conveying device applicable to food boxes of different sizes according to claim 1, wherein: A double-threaded screw rod (106) is rotatably mounted on the bottom plate (101), and the threads at both ends of the double-threaded screw rod (106) respectively form a screw pair with the corresponding pitch-adjusting slide (103). A transmission shaft (104) is symmetrically rotatably mounted on the pitch-adjusting slide (103), and a transport wheel (107) is fixedly mounted on the transmission shaft (104). The transport belt (102) is arranged on the two corresponding transport wheels (107).

3. The conveying device applicable to food boxes of different sizes according to claim 2, wherein: The bottom plate (101) is also rotatably mounted with a double-headed spline shaft (108); each of the two transport components has a transmission shaft (104) that forms a spline sliding fit with the double-headed spline shaft (108); and two double-headed spline shafts (108) that form a spline sliding fit with the double-headed spline shaft (108) are arranged relative to each other.

4. The conveying device applicable to food boxes of different sizes according to claim 3, wherein: The supporting square plate (110) is slidably matched with the corresponding supporting long strip plate 1 (122) and supporting long strip plate 2 (123); when the supporting square plate (110) is located between the supporting long strip plate 1 (122) and the supporting long strip plate 2 (123), the two adjacent supporting square plates (110) are in contact with each other; the supporting square plate (110) between the supporting long strip plate 1 (122) and the supporting long strip plate 2 (123) closest to the conveyor belt (102) is located directly below the inner side of the conveyor belt (102); the supporting square plate (110) is used to provide auxiliary support for the conveyor belt (102) when conveying articles.

5. The conveying device applicable to food boxes of different sizes according to claim 4, characterized in that: When the friction strip plate (121) contacts the friction wheel (114), there is friction between them. The width of the friction strip plate (121) is equal to that of the support square plate (110). When the support square plate (110) is located between the first support long strip plate (122) and the second support long strip plate (123), the corresponding friction strip plate (121) contacts the adjacent friction strip plate (121).

6. The conveying device applicable to food boxes of different sizes according to claim 5, characterized in that: A limit round block (119) is fixedly arranged on the lower surface of the transfer slide plate (116). Springs are arranged between the limit round block (119) and the cross transfer plate (115). When the transfer slide plate (116) moves to the position farthest from the lower surface of the bottom plate (101), the upper surface of the transfer slide plate (116) and the lower surface of the support square plate (110) are on the same plane.

7. The conveying device applicable to food boxes of different sizes according to claim 6, characterized in that: Sector strip plates (118) are symmetrically and fixedly arranged on both sides of the distance adjustment slide frame (103). Position adjustment slide frames (124) are slidably mounted on the distance adjustment slide frame (103). Arc strip plates (120) are also symmetrically and fixedly arranged on both sides of the position adjustment slide frame (124). The sector strip plates (118) and the arc strip plates (120) on the same side of the distance adjustment slide frame (103) are arranged at intervals. When the two sector strip plates (118) and the two arc strip plates (120) on the same side of the distance adjustment slide frame (103) are joined, a complete limit ring plate is formed. Chutes for cooperating with the limit ring plate are arranged on the limit round blocks (119). The axis of the limit ring plate and the center line of the cross transfer plate (115) are on the same straight line.

8. The conveying device applicable to food boxes of different sizes according to claim 7, wherein: A first transmission group is arranged between the two friction wheels (114) on the same distance adjustment slide frame (103), and a first linkage group is arranged between the two first transmission groups. A second transmission group is arranged between the two cross transfer plates (115) on the same distance adjustment slide frame (103), and a second linkage group is arranged between the two second transmission groups.

9. The conveying device applicable to food boxes of different sizes according to claim 8, wherein: L-shaped position adjustment plates (111) are fixedly mounted on the lower surfaces of the position adjustment slide frames (124). A position adjustment electric cylinder (133) is fixedly mounted on the bottom plate (101). The L-shaped position adjustment plates (111) are all slidably matched with the piston rod ends of the position adjustment electric cylinder (133).

Images