A combined conveying device

Abstract

The present invention discloses a combined conveying device, comprising a first conveying section, a second conveying section, a bottle clamping device, and a round bottle guide device. The first conveying section comprises an input end and an output end, and includes a first drive device and two input belts. The first drive device is connected to the input belts and drives the input belts to operate. The input belts include a first input belt and a second input belt, and the first and second input belts extend in the same direction. A first outer guardrail and a first inner guardrail are provided on the upper side of the first input belt, and a second outer guardrail and a second inner guardrail are provided on the upper side of the second input belt. The second conveying section comprises a second drive device and an output belt, and a first output guardrail and a second output guardrail are provided on the upper side of the output belt. A first closing section extends from the end of the first output guardrail near the first conveying section, and a second closing section extends from the end of the second output guardrail near the first conveying section. Compared with the prior art, the present invention is applicable to two types of bottles.

Description

Technical Field

[0001] The present invention relates to the technical field of bottle conveying, in particular to a combined conveying device. Background Art

[0002] Bottle filling often requires conveying bottles. Bottles come in a variety of sizes, some with square cross-sections, others with round cross-sections. Existing technologies often require different conveying devices for bottles with different cross-sections. This significantly increases space requirements and production costs. Summary of the Invention

[0003] In order to solve the shortcoming of the prior art that bottles of a single type can only be conveyed, the present invention provides a combined conveying device.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A combined conveying device comprises a first conveying section, a second conveying section, a bottle clamping device, and a round bottle guiding device; the first conveying section comprises an input end and an output end, the first conveying section comprises a first driving device and two input belts, the first driving device is connected to the input belt and drives the input belt to run, the input belt comprises a first input belt and a second input belt, the extension directions of the first input belt and the second input belt are consistent, a first outer guardrail and a first inner guardrail are provided on the upper side of the first input belt, a second outer guardrail and a second inner guardrail are provided on the upper side of the second input belt, the first inner guardrail and the second inner guardrail are provided between the first outer guardrail and the second outer guardrail, and a gap is formed between the first outer guardrail and the first inner guardrail above the first input belt and along the extension direction of the first input belt The first input space extending in the extension direction, the second input space located above the second input belt and extending in the extension direction of the second input belt is formed between the second inner guardrail and the second outer guardrail; the second conveying section is arranged at the output end of the first conveying section, the second conveying section includes a second driving device and an output belt, the second driving device is connected to the output belt and is used to drive the output belt to run, the output belt is arranged between the first input belt and the second input belt and is consistent with the extension direction of the first input belt, the first output guardrail and the second output guardrail are arranged on the upper side of the output belt, and an output space located above the output belt and extending in the extension direction of the output belt is formed between the first output guardrail and the second output guardrail, and the first output guardrail extends near one end of the first conveying section. The first closing section, the second output guardrail is extended with a second closing section at one end close to the first conveying section, a closing space is formed between the first closing section and the second closing section, the end of the first inner guardrail close to the second conveying section is located in the closing space, the end of the second inner guardrail close to the second conveying section is located in the closing space, and the width of the closing space gradually decreases from the first conveying section to the second conveying section; the bottle clamping device is arranged between the first conveying section and the second conveying section, the bottle clamping device includes a first clamping plate, a first cylinder, a second clamping plate and a second cylinder, the first cylinder and the first clamping plate are connected and used to adjust the distance between the first clamping plate and the first inner guardrail, the second cylinder and the second clamping plate are connected and used to adjust the distance between the second clamping plate and the second inner guardrail; the round bottle guiding device is provided The round bottle guiding device is arranged between the first conveying section and the second conveying section, and includes a first conveying roller arranged between the first input space and the closing space, and a second conveying roller arranged between the second input space and the closing space. The first conveying roller and the second conveying roller have the same structure. The first conveying roller includes a rotating body extending along the extension direction of the first input belt, and the rotating body is provided with a spiral protrusion for driving the bottle to move toward the closing space. The round bottle guiding device also includes a first motor for driving the first conveying roller to rotate, a second motor for driving the second conveying roller to rotate, a first adjusting device for adjusting the distance between the first conveying roller and the first inner guardrail, and a second adjusting device for adjusting the distance between the second conveying roller and the second inner guardrail.

[0006] Furthermore, the combined conveying device also includes a first bracket for supporting the first input belt and a second bracket for supporting the second input belt. The bottle clamping device also includes a first base and a second base. The first base and the first bracket are fixedly connected, and the second base and the second bracket are fixedly connected. The first bracket and the second bracket are arranged between the first base and the second base. A connecting plate is provided on the side of the first base away from the first base. The connecting plate is fixedly connected to a guide rod, the guide rod passes through the first base and is connected to the second base, the guide rod and the first base are slidably connected, and the connecting plate is rotatably connected to an adjusting screw, the adjusting screw passes through the first base and is rotatably connected to the second base, and the adjusting screw and the first base The screw connection is used to adjust the distance between the first base and the second base, a first bottle clamping space is formed between the first clamping plate and the first inner guardrail, and a second bottle clamping space is formed between the second clamping plate and the second inner guardrail. The upper side of the first base is fixedly connected with a first guide plate, the first guide plate extends along the extension direction of the first input belt, and the side of the first guide plate facing the input end of the first conveying section is provided with an inclined surface that is convenient for guiding the bottle into the first bottle clamping space. The upper side of the second base is fixedly connected with a second guide plate, the second guide plate extends along the extension direction of the second input belt, and the side of the second guide plate facing the input end of the first conveying section is provided with a inclined surface that is convenient for guiding the bottle into the second bottle clamping space.

[0007] Furthermore, there are two first guide plates and they are arranged opposite to each other up and down, the first clamping plate is arranged between the first guide plates, the first cylinder is fixedly connected to the first guide plate on the lower side, and there are two second guide plates and they are arranged opposite to each other up and down, the second clamping plate is arranged between the second guide plates, and the second cylinder is fixedly connected to the second guide plate on the lower side.

[0008] Furthermore, two first clamping rods are extended from the first clamping plate on one side toward the closing space, and the first clamping rods are arranged opposite to each other up and down and form a first avoidance groove with an opening toward the closing space, and two second clamping rods are extended from the second clamping plate on one side toward the closing space, and the second clamping rods are arranged opposite to each other up and down and form a second avoidance groove with an opening toward the closing space, a first blowing pipe is provided on the side of the first clamping plate away from the second clamping plate, the pipe mouth of the first blowing pipe faces the closing space and is used to blow the bottle located in the first bottle clamping space toward the closing space, the first blowing pipe is provided between the first clamping rods, and a second blowing pipe is provided on the side of the second clamping plate away from the first clamping plate, the pipe mouth of the second blowing pipe faces the closing space and is used to blow the bottle located in the second bottle clamping space toward the closing space, and the second blowing pipe is provided between the second clamping rods.

[0009] Furthermore, the first guide plates are connected by a first connecting rod, the first air blowing pipe is fixedly connected to the first connecting rod, the second guide plates are connected by a second connecting rod, and the second air blowing pipe is fixedly connected to the second connecting rod.

[0010] Furthermore, the combined conveying device also includes a third bracket arranged on the lower side of the round bottle guide device, the first adjusting device and the second adjusting device have the same structure, the first adjusting device includes a sliding seat slidably connected to the upper end of the third bracket, an adjusting plate arranged on the upper side of the sliding seat, and a fixing bolt threadedly connected to the upper side of the sliding seat, the adjusting plate is provided with a long hole, the fixing bolt passes through the long hole and abuts against the upper side of the adjusting plate, the adjusting plate and the third bracket are fixedly connected, the first conveying roller and the sliding seat of the first adjusting device are rotatably connected, and the second conveying roller and the sliding seat of the second adjusting device are rotatably connected.

[0011] Furthermore, the first motor is fixedly connected to the lower side of the sliding seat of the first adjusting device, and the second motor is fixedly connected to the lower side of the sliding seat of the second adjusting device.

[0012] Compared with the prior art, the combined conveying device provided by the present invention has the following beneficial effects: 1. For bottles with a square cross-section, a bottle clamping device is provided to limit the flow; for bottles with a circular cross-section, a round bottle guide device is provided to limit the flow. This application is applicable to both types of bottles; 2. A first blowing pipe and a second blowing pipe are provided, so that the gap between bottles with a square cross-section becomes larger before they move to the output space, making it easier for the bottles to change their direction of movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of an embodiment of the present application.

[0014] Figure 2 For the embodiments of this application Figure 1 Enlarged view of point A.

[0015] Figure 3 It is a partial top view of an embodiment of the present application.

[0016] Figure 4 Schematic diagram of a bottle clamping device according to an embodiment of the present application.

[0017] Figure 5 This is a schematic diagram of a round bottle guiding device according to an embodiment of the present application.

[0018] In the figure: first conveying section 11, input end 111, output end 112, first driving device 113, first input belt 114, first outer guardrail 1141, first inner guardrail 1142, second input belt 115, second outer guardrail 1151, second inner guardrail 1152, second conveying section 12, output belt 122, first output guardrail 1221, first closing section 1221a, second output guardrail 1222, second closing section 1222a, bottle clamping device 13, first clamping plate 131, first clamping rod 1311, first avoidance groove 1311a, first air blowing pipe 1312, first cylinder 132, second clamping plate 133, second clamping rod 1331, second avoidance groove 1331a, second air blowing pipe 1332, second cylinder 134, first base 135, connecting plate 1351 , guide rod 1351a, adjusting screw 1351b, first guide plate 1352, inclined surface 1352a, first connecting rod 1352b, second base 136, second guide plate 1361, second connecting rod 1361a, round bottle guide device 14, first conveying roller 141, rotating body 1411, protrusion 1412, second conveying roller 142, first motor 143, second motor 144, first adjusting device 145, sliding seat 1451, adjusting plate 1452, long hole 1452a, fixing bolt 1453, second adjusting device 146, first bracket 15, second bracket 16, third bracket 17, first input space 101, second input space 102, output space 103, closing space 104, first bottle clamping space 105, second bottle clamping space 106. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0020] See also Figures 1 to 5 A combined conveying device includes: a first conveying section 11, a second conveying section 12, a bottle clamping device 13 and a round bottle guiding device 14.

[0021] The first conveying section 11 includes an input end 111 and an output end 112. The first conveying section 11 is used to convey bottles to the second conveying section 12. Bottles move along the first conveying section 11 from the input end 111 to the output end 112. The first conveying section 11 includes a first drive device 113 and two input belts. The first drive device 113 is connected to and drives the input belts. The first drive device 113 can be a motor. The input belts include a first input belt 114 and a second input belt 115. The first and second input belts 114, 115 extend in the same direction. The first input belt 114 extends horizontally. A first outer guardrail 1141 and a first inner guardrail 1142 are provided on the upper side of the first input belt 114, while a second outer guardrail 1151 and a second inner guardrail 1152 are provided on the upper side of the second input belt 115. The first inner guardrail 1142 and the second inner guardrail 1152 are disposed between the first outer guardrail 1141 and the second outer guardrail 1151. A first input space 101 is formed between the first outer guardrail 1141 and the first inner guardrail 1142, located above the first input belt 114 and extending along the direction of extension of the first input belt 114. A second input space 102 is formed between the second inner guardrail 1152 and the second outer guardrail 1151, located above the second input belt 115 and extending along the direction of extension of the second input belt 115. When the first input belt 114 conveys bottles, the bottles are positioned within the first input space, with the first inner guardrail 1142 and the first outer guardrail 1141 positioned on opposite sides of the bottles to prevent them from falling off the first input belt 114. When the second input belt 115 conveys bottles, the bottles are positioned within the second input space, with the second inner guardrail 1152 and the second outer guardrail 1151 positioned on opposite sides of the bottles to prevent them from falling off the second input belt 115.

[0022] The second conveyor section 12 is located at the output end 112 of the first conveyor section 11 and is used to receive bottles conveyed from the first conveyor section 11. The second conveyor section 12 includes a second drive device (not shown) and an output belt 122. The second drive device is connected to the output belt 122 and is used to drive the output belt 122. The output belt 122 extends horizontally, with its upper side flush with the upper side of the first input belt 114 and the upper side of the second input belt 115. The output belt 122 is located between the first and second input belts 114, extending in the same direction as the first input belt 114. A first output guardrail 1221 and a second output guardrail 1222 are located above the output belt 122, forming an output space 103 between the first and second output guardrails 1221 and 1222, located above the output belt 122 and extending along the direction of the output belt 122. When the output belt 122 is conveying bottles, the bottles are positioned between the first output guardrail 1221 and the second output guardrail 1222 and within the output space 103. The first and second output guardrails 1221 and 1222 are used to prevent bottles from falling off the output belt 122. A first closing section 1221a extends from the end of the first output guardrail 1221 near the first conveying section 11, and a second closing section 1222a extends from the end of the second output guardrail 1222 near the first conveying section 11. A closing space 104 is formed between the first and second closing sections 1221a and 1222a. The end of the first inner guardrail 1142 near the second conveying section 12 is positioned within the closing space 104, and the end of the second inner guardrail 1152 near the second conveying section 12 is positioned within the closing space 104. The width of the closing space 104 gradually decreases from the first conveying section 11 to the second conveying section 12. The first closing section 1221a is used to guide the bottles on the first input belt 114 to the output belt 122, and the second closing section 1222a is used to guide the bottles on the second input belt 115 to the output belt 122. Specifically, the first closing section 1221a is used to guide the bottles on the first input belt 114 to the output space 103, and the second closing section 1222a is used to guide the bottles on the second input belt 115 to the output space 103.

[0023] The bottle clamping device 13 is disposed between the first conveying section 11 and the second conveying section 12. When the bottle has a square cross-section, the bottle clamping device 13 is used to clamp the bottle, preventing it from moving with the first conveying section 11. Specifically, the bottle clamping device 13 includes a first clamping plate 131, a first cylinder 132, a second clamping plate 133, and a second cylinder 134. The first cylinder 132 is connected to the first clamping plate 131 and is used to adjust the distance between the first clamping plate 131 and the first inner guardrail 1142. The second cylinder 134 is connected to the second clamping plate 133 and is used to adjust the distance between the second clamping plate 133 and the second inner guardrail 1152. The first clamping plate 131 cooperates with the first inner guardrail 1142 to clamp the bottle. The second clamping plate 133 cooperates with the second inner guardrail 1152 to clamp the bottle.

[0024] The round bottle guide device 14 is disposed between the first conveying section 11 and the second conveying section 12. It is used to drive bottles with circular cross-sections toward the closing space 104. The round bottle guide device 14 includes a first conveyor roller 141 disposed between the first input space 101 and the closing space 104, and a second conveyor roller 142 disposed between the second input space 102 and the closing space 104. The first and second conveyor rollers 141, 142 have identical structures. The first conveyor roller 141 includes a rotating body 1411 extending along the direction of the first input belt 114. The rotating body 1411 is provided with a spiral protrusion 1412 for driving the bottles toward the closing space 104. The pitch of the protrusion 1412 matches the outer diameter of the bottles, allowing each pitch to accommodate one bottle. The first conveyor roller extends along the direction of the first input belt 114 and is used to drive bottles on the first input belt 114 toward the closing space 104. The second conveyor roller extends along the extension direction of the second input belt 115 and is used to drive the bottles on the second input belt 115 toward the closing space 104. The round bottle guide device 14 also includes a first motor 143 for driving the first conveyor roller 141, a second motor 144 for driving the second conveyor roller 142, a first adjustment device 145 for adjusting the distance between the first conveyor roller 141 and the first inner guardrail 1142, and a second adjustment device 146 for adjusting the distance between the second conveyor roller 142 and the second inner guardrail 1152. With this arrangement, when conveying bottles with square cross-sections, the first adjustment device 145 moves the first conveyor roller away from the first inner guardrail 1142, and the second adjustment device 146 moves the second conveyor roller away from the second inner guardrail 1152, thereby preventing interference between the bottles and the first conveyor roller and the second conveyor roller.

[0025] The combined conveying device further includes a first bracket 15 for supporting the first input belt 114 and a second bracket 16 for supporting the second input belt 115. The bottle clamping device 13 further includes a first base 135 and a second base 136. The first base 135 is fixedly connected to the first bracket 15, and the second base 136 is fixedly connected to the second bracket 16. The first bracket 15 and the second bracket 16 are disposed between the first base 135 and the second base 136. A connecting plate 1351 is provided on a side of the first base 135 away from the first base 135. The connecting plate 1351 is fixedly connected to a guide rod 1351a. The guide rod 1351a passes through the first base 135 and is connected to the second base 136. The guide rod 1351a is slidably connected to the first base 135. The connecting plate 1351 is rotatably connected to an adjusting screw 1351b. The adjusting screw 1351b passes through the first base 135 and is rotatably connected to the second base 136. The adjusting screw 1351b is threadedly connected to the first base 135 and is used to adjust the distance between the first base 135 and the second base 136. The above arrangement facilitates the installation of the first base 135 and the second base 136. A first bottle clamping space 105 is formed between the first clamping plate 131 and the first inner guardrail 1142, and a second bottle clamping space 106 is formed between the second clamping plate 133 and the second inner guardrail 1152. A first guide plate 1352 is fixedly connected to the upper side of the first base 135. The first guide plate 1352 extends along the direction of the first input belt 114. A slope 1352a is provided on the side of the first guide plate 1352 facing the input end 111 of the first conveying section 11 to facilitate guiding bottles into the first bottle clamping space 105. A second guide plate 1361 is fixedly connected to the upper side of the second base 136. The second guide plate 1361 extends along the direction of the second input belt 115. A slope 1352a is provided on the side of the second guide plate 1361 facing the input end 111 of the first conveying section 11 to facilitate guiding bottles into the second bottle clamping space 106.

[0026] There are two first guide plates 1352 and they are arranged opposite to each other up and down, the first clamping plate 131 is set between the first guide plates 1352, the first cylinder 132 is fixedly connected to the first guide plate 1352 on the lower side, there are two second guide plates 1361 and they are arranged opposite to each other up and down, the second clamping plate 133 is set between the second guide plates 1361, and the second cylinder 134 is fixedly connected to the second guide plate 1361 on the lower side.

[0027] Two first clamping rods 1311 are extended from the first clamping plate 131 toward the side of the closing space 104. The first clamping rods 1311 are arranged opposite to each other up and down and form a first avoidance groove 1311a with an opening toward the closing space 104. Two second clamping rods 1331 are extended from the second clamping plate 133 toward the side of the closing space 104. The second clamping rods 1331 are arranged opposite to each other up and down and form a second avoidance groove 1331a with an opening toward the closing space 104. A first blowing pipe 1312 is provided on the side of the first clamping plate 131 away from the second clamping plate 133. The opening of the first air blowing pipe 1312 faces the closing space 104 and is used to blow the bottles located in the first bottle clamping space 105 toward the closing space 104. The first air blowing pipe 1312 is disposed between the first clamping bars 1311. A second air blowing pipe 1332 is disposed on the side of the second clamping plate 133 away from the first clamping plate 131. The opening of the second air blowing pipe 1332 faces the closing space 104 and is used to blow the bottles located in the second bottle clamping space 106 toward the closing space 104. The second air blowing pipe 1332 is disposed between the second clamping bars 1331. Through the above arrangement, when the bottle clamping device 13 releases the bottles, the first air blowing pipe 1312 and the second air blowing pipe 1332 output compressed air, which can blow the bottles toward the closing space 104 and increase the distance between the bottles, thereby facilitating the bottles on the first input belt 114 and the second input belt 115 to change their movement direction.

[0028] The first guide plates 1352 are connected by a first connecting rod 1352b, the first air blowing pipe 1312 is fixedly connected to the first connecting rod 1352b, the second guide plates 1361 are connected by a second connecting rod 1361a, the second air blowing pipe 1332 is fixedly connected to the second connecting rod 1361a.

[0029] The combined conveying device also includes a third bracket 17 arranged on the lower side of the round bottle guide device. The first adjustment device 145 and the second adjustment device 146 have the same structure. The first adjustment device 145 includes a sliding seat 1451 slidably connected to the upper end of the third bracket 17, an adjustment plate 1452 arranged on the upper side of the sliding seat 1451, and a fixing bolt 1453 threadedly connected to the upper side of the sliding seat 1451. The adjustment plate 1452 is provided with a long hole 1452a. The fixing bolt 1453 passes through the long hole 1452a and abuts against the upper side of the adjustment plate 1452, thereby fixing the adjustment plate 1452 and the sliding seat 1451 together. When the sliding seat 1451 needs to be adjusted, the fixing bolt 1453 is loosened, and then the sliding seat 1451 moves, and the fixing bolt 1453 moves in the long hole 1452a. After adjustment, the fixing bolt 1453 is tightened. The adjustment plate 1452 is fixedly connected to the third bracket 17 , the first conveying roller is rotatably connected to the sliding seat 1451 of the first adjustment device 145 , and the second conveying roller is rotatably connected to the sliding seat 1451 of the second adjustment device 146 .

[0030] The first motor is fixedly connected to the lower side of the sliding seat 1451 of the first adjusting device 145 , and the second motor is fixedly connected to the lower side of the sliding seat 1451 of the second adjusting device 146 .

[0031] Implementation principle:

[0032] When conveying bottles with a square cross-section, the sliding seat 1451 is adjusted so that the first conveyor roller 141 is away from the first inner guardrail 1142 and the second conveyor roller is away from the second inner guardrail 1152. The bottles are moved toward the first bottle clamping space 105 by the first input belt 114, and toward the second bottle clamping space 106 by the second input belt 115. The first clamping plates 131 and the second clamping plates 133 alternately clamp the bottles. Specifically, when the first clamping plates 131 clamp the bottles, the first input belt 114 continues to move. The bottles in the first bottle clamping space 105 stop moving toward the closing space 104. The bottles in the first input space 101 are blocked by the bottles in the first clamping space 105 and cannot move forward. The bottles on the first input belt 114 are squeezed together. However, the first inner guardrail 1142 and the first outer guardrail 1141 prevent the bottles from falling off the first input belt 114. At this point, the second clamping plates 133 release the bottles. The bottles on the second input belt 115 continue to move forward under the influence of the second input belt 115. When the bottles pass through the second air blowing pipe 1332, the compressed air output from the second air blowing pipe 1332 blows the bottles passing through the second air blowing pipe 1332 forward. At this time, the bottles blown by the second air blowing pipe 1332 move forward relative to the second input belt 115, separating from the bottles behind them, i.e., the gaps between the bottles increase. After passing the second conveyor rollers, the bottles on the second input belt 115 are moved to the output belt 122 under the influence of the second closing section 1222a. Under the influence of the output belt 122, they move along the output space 103. As the first clamping plates 131 and the second clamping plates 133 alternately clamp the bottles, the bottles on the first input belt 114 and the second input belt 115 alternately move toward the output space 103, thereby preventing the bottles on the first input belt 114 and the second input belt 115 from interfering with each other.

[0033] When conveying bottles with a circular cross-section, the first and second clamping plates 131 and 133 do not operate. The operation of the first and second clamping plates 131 and 133 can easily squeeze and deform bottles with circular cross-sections. In this case, the sliding seat 1451 is adjusted so that the distance between the first conveyor roller and the first inner guardrail 1142 matches the outer diameter of the bottle, and the distance between the second conveyor roller and the second inner guardrail 1152 matches the outer diameter of the bottle. Specifically, when a bottle on the first input belt 114 is located between the first conveyor roller and the first inner guardrail 1142, the bottle engages with the protrusion 1412 and does not move with the first input belt 114. Only when the first conveyor roller rotates can the bottle, under the action of the protrusion 1412, move toward the closing space 104. Similarly, when a bottle on the second input belt 115 is located between the second conveyor roller and the second inner guardrail 1152, the bottle can only move toward the closing space 104 when the second conveyor roller rotates. When conveying bottles with a circular cross-section, the first and second conveyor rollers rotate alternately. When the first conveyor roller rotates, the bottle is ejected from the first conveyor roller, continues to move forward under the action of the first input belt 114, enters the output space 103 under the guidance of the first closing section 1221a, and then continues to move forward under the action of the output belt 122. When the second conveyor roller rotates, the bottle is ejected from the second conveyor roller, continues to move forward under the action of the second input belt 115, enters the output space 103 under the guidance of the second closing section 1222a, and then continues to move forward under the action of the output belt 122.

[0034] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A combined conveying device, characterized in that: include: A first conveying section, the first conveying section includes an input end and an output end, the first conveying section includes a first driving device and two input belts, the first driving device is connected to the input belt and drives the input belt to run, the input belt includes a first input belt and a second input belt, the extension directions of the first input belt and the second input belt are consistent, a first outer guardrail and a first inner guardrail are provided on the upper side of the first input belt, a second outer guardrail and a second inner guardrail are provided on the upper side of the second input belt, the first inner guardrail and the second inner guardrail are provided between the first outer guardrail and the second outer guardrail, a first input space is formed between the first outer guardrail and the first inner guardrail, which is located above the first input belt and extends along the extension direction of the first input belt, and a second input space is formed between the second inner guardrail and the second outer guardrail, which is located above the second input belt and extends along the extension direction of the second input belt; and a second conveying section, wherein the second conveying section is arranged at an output end of the first conveying section, the second conveying section includes a second driving device and an output belt, the second driving device is connected to the output belt and is used to drive the output belt to operate, the output belt is arranged between the first input belt and the second input belt and is in the same extension direction as the first input belt, a first output guardrail and a second output guardrail are provided on the upper side of the output belt, an output space is formed between the first output guardrail and the second output guardrail, the first output guardrail is provided with a first closing section extending from one end of the first conveying section to the first output guardrail, the second output guardrail is provided with a second closing section extending from one end of the first conveying section to the first conveying section, a closing space is formed between the first closing section and the second closing section, the end of the first inner guardrail close to the second conveying section is located in the closing space, and the end of the second inner guardrail close to the second conveying section is located in the closing space, and the width of the closing space gradually decreases from the first conveying section to the second conveying section; a bottle clamping device disposed between the first conveying section and the second conveying section, comprising a first clamping plate, a first cylinder, a second clamping plate, and a second cylinder, wherein the first cylinder is connected to the first clamping plate and is used to adjust the distance between the first clamping plate and the first inner guardrail, and the second cylinder is connected to the second clamping plate and is used to adjust the distance between the second clamping plate and the second inner guardrail; a round bottle guiding device, the round bottle guiding device being arranged between the first conveying section and the second conveying section, the round bottle guiding device comprising a first conveying roller arranged between the first input space and the closing space, and a second conveying roller arranged between the second input space and the closing space, the first conveying roller and the second conveying roller having the same structure, the first conveying roller comprising a rotating body extending along the extension direction of the first input belt, the rotating body being provided with a spiral protrusion for driving the bottles to move toward the closing space, the round bottle guiding device further comprising a first motor for driving the first conveying roller to rotate, a second motor for driving the second conveying roller to rotate, a first adjusting device for adjusting the distance between the first conveying roller and the first inner guardrail, and a second adjusting device for adjusting the distance between the second conveying roller and the second inner guardrail; The combined conveying device also includes a third bracket arranged at the lower side of the round bottle guide device, the first adjusting device and the second adjusting device have the same structure, the first adjusting device includes a sliding seat slidably connected to the upper end of the third bracket, an adjusting plate arranged on the upper side of the sliding seat, and a fixing bolt threadedly connected to the upper side of the sliding seat, the adjusting plate is provided with a long hole, the fixing bolt passes through the long hole and abuts against the upper side of the adjusting plate, the adjusting plate is fixedly connected to the third bracket, the first conveying roller is rotatably connected to the sliding seat of the first adjusting device, and the second conveying roller is rotatably connected to the sliding seat of the second adjusting device; When conveying bottles with a square cross section, the sliding seat is adjusted so that the first conveying roller is away from the first inner guardrail and the second conveying roller is away from the second inner guardrail. The bottles move toward the first bottle clamping space under the action of the first input belt, and then move toward the second bottle clamping space under the action of the second input belt. The first clamping plate and the second clamping plate alternately clamp the bottles. When conveying bottles with a circular cross-section, the first clamping plate and the second clamping plate do not work. At this time, the sliding seat is adjusted so that the distance between the first conveying roller and the first inner guardrail is adapted to the outer diameter of the bottle, and the distance between the second conveying roller and the second inner guardrail is adapted to the outer diameter of the bottle. The first conveying roller and the second conveying roller rotate alternately. When the first conveying roller rotates, the bottle is output from the first conveying roller, and when the second conveying roller rotates, the bottle is output from the second conveying roller.

2. A combined conveying device according to claim 1, characterized in that: The combined conveying device also includes a first bracket for supporting the first input belt and a second bracket for supporting the second input belt, and the bottle clamping device also includes a first base and a second base, the first base and the first bracket are fixedly connected, the second base and the second bracket are fixedly connected, the first bracket and the second bracket are arranged between the first base and the second base, a connecting plate is provided on the side of the first base away from the first base, the connecting plate is fixedly connected to a guide rod, the guide rod passes through the first base and is connected to the second base, the guide rod is slidably connected to the first base, the connecting plate is rotatably connected to an adjusting screw, the adjusting screw passes through the first base and is rotatably connected to the second base, and the adjusting screw The rod is threadably connected to the first base and is used to adjust the distance between the first base and the second base, a first bottle clamping space is formed between the first clamping plate and the first inner guardrail, and a second bottle clamping space is formed between the second clamping plate and the second inner guardrail, the upper side of the first base is fixedly connected to the first guide plate, the first guide plate extends along the extension direction of the first input belt, and the first guide plate is provided with a slope facing the input end of the first conveying section on one side for facilitating the introduction of bottles into the first bottle clamping space, the upper side of the second base is fixedly connected to the second guide plate, the second guide plate extends along the extension direction of the second input belt, and the second guide plate is provided with a slope facing the input end of the first conveying section on one side for facilitating the introduction of bottles into the second bottle clamping space.

3. A combined conveying device according to claim 2, characterized in that: There are two first guide plates, which are arranged opposite to each other up and down, the first clamping plate is set between the first guide plates, the first cylinder is fixedly connected to the first guide plate on the lower side, there are two second guide plates, which are arranged opposite to each other up and down, the second clamping plate is set between the second guide plates, and the second cylinder is fixedly connected to the second guide plate on the lower side.

4. A combined conveying device according to claim 3, characterized in that: Two first clamping rods are extended from the first clamping plate toward one side of the closing space, and the first clamping rods are arranged opposite to each other up and down and form a first avoidance groove opening toward the closing space, and the second clamping rods are extended from the second clamping plate toward one side of the closing space, and the second clamping rods are arranged opposite to each other up and down and form a second avoidance groove opening toward the closing space, a first blowing pipe is provided on the side of the first clamping plate away from the second clamping plate, the pipe mouth of the first blowing pipe faces the closing space and is used to blow the bottle located in the first bottle clamping space toward the closing space, the first blowing pipe is provided between the first clamping rods, and a second blowing pipe is provided on the side of the second clamping plate away from the first clamping plate, the pipe mouth of the second blowing pipe faces the closing space and is used to blow the bottle located in the second bottle clamping space toward the closing space, and the second blowing pipe is provided between the second clamping rods.

5. A combined conveying device according to claim 4, characterized in that: The first guide plates are connected by a first connecting rod, the first air blowing pipe is fixedly connected to the first connecting rod, the second guide plates are connected by a second connecting rod, and the second air blowing pipe is fixedly connected to the second connecting rod.

6. A combined conveying device according to claim 1, characterized in that: The first motor is fixedly connected to the lower side of the sliding seat of the first adjusting device, and the second motor is fixedly connected to the lower side of the sliding seat of the second adjusting device.

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