Intermediate pitch changing mechanism for bottle unloading

Abstract

The utility model discloses an intermediate variable pitch mechanism for unloading bottles, which comprises a first material receiving component and a second material receiving component which are in mirror symmetry and are respectively provided with a material receiving groove capable of being automatically opened and closed; the power output end of the variable-pitch adjusting assembly is connected with the fixed end of the first material receiving assembly and the fixed end of the second material receiving assembly, and the variable-pitch adjusting assembly is used for adjusting the horizontal distance and the vertical height of the two material receiving grooves; the bottle receiving positions of the first material receiving assembly and the second material receiving assembly correspond to the bottle unloading position of a bottle unloading mechanism of the B part of the bottle making machine, and the bottle falling positions of the first material receiving assembly and the second material receiving assembly correspond to the bottle body input position of a bottle body quality detection system conveying line. The bottle unloading and transferring mechanism is ingenious in structural design, smooth and accurate in action, capable of containing, receiving and transferring two finished bottles at a time and adjusting the distance between the two finished bottles during transferring, suitable for being applied between a bottle-making machine B part and a bottle body quality detection system and used for being matched with a bottle unloading and transferring mechanism to unload and transfer the two finished bottles at the same time so as to improve working efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of bottle making machines, and relates to the transfer of finished bottles from a B part of a bottle making machine to a conveying line of a bottle quality detection system, in particular to an intermediate transfer mechanism for unloading bottles. Background Art

[0002] In the prior art, the bottle unloading and transfer mechanism between the bottle making machine and the bottle quality inspection system mostly realizes the transfer of finished bottles from the B part of the bottle making machine to the bottle quality inspection system through the cooperation between the bottle unloading robot and the transfer robot, which can only move linearly in one direction. That is, after the bottle making machine makes the material tube into a finished bottle, the bottle unloading robot unloads the single finished bottle from the chuck plate of the B part and transfers it to the bottle picking station of the transfer robot, and then the transfer robot transfers the finished bottle to the bottle input port position of the bottle quality inspection system transportation line.

[0003] Since at least two manipulators are required to cooperate with each other and only one finished bottle can be unloaded and transferred at a time, the above-mentioned bottle unloading and transfer mechanism has the problem of low working efficiency.

[0004] Based on the above background, the applicant has developed and designed a bottle unloading and transfer mechanism for bottle making machines, and applied for a utility model patent on September 29, 2021, with the authorization announcement number CN215799129U. The utility model adopts a combined structure of a multi-axis robotic arm and a bottle unloading assembly to replace the coordination structure of multiple manipulators, thereby changing the original work conversion mode that requires multiple nodes during bottle unloading and transfer, and realizing a work mode of direct transfer of finished bottles. This working mode not only improves the transfer efficiency of finished bottles, but also simplifies the structure of the overall bottle unloading and transfer mechanism, effectively reducing the failure rate of the equipment.

[0005] Most importantly, the utility model has two bottle clamping assemblies arranged side by side on the bottle unloading assembly, which correspond to the two bottle unloading stations on the clamping head plate of the bottle making machine part B respectively. Two finished bottles can be unloaded and transferred at the same time, which is faster and multiplies the working efficiency of the equipment.

[0006] However, the existing bottle making machine B part and bottle quality inspection system do not have a unified setting for the bottle transport spacing. Usually, the spacing between the finished bottles on the bottle making machine B part is relatively large, and the spacing between the finished bottles on the bottle quality inspection system transportation line is relatively small. Therefore, when the above utility model is applied between the bottle making machine B part and the bottle quality inspection system to perform a working mode of unloading and transporting two finished bottles at one time, a variable distance structure must be configured to change the distance between the two finished bottles, so that they change from the larger bottle spacing corresponding to the bottle making machine B part to the smaller bottle spacing corresponding to the bottle quality inspection system transportation line. Utility Model Content

[0007] In order to solve the above deficiencies in the prior art, the utility model aims to provide an intermediate transfer mechanism for bottle unloading, so as to achieve the purpose of unloading and transferring two finished bottles at the same time in cooperation with the bottle unloading and transferring mechanism.

[0008] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows: a variable distance mechanism for unloading bottles, comprising a first material receiving component and a second material receiving component which are mirror-symmetrical, both of which have material receiving grooves which open and close automatically; and a variable distance adjustment component, wherein the power output end is connected to the fixed end of the first material receiving component and the fixed end of the second material receiving component, so as to adjust the horizontal distance and vertical height of the two material receiving grooves;

[0009] The bottle receiving positions of the first receiving assembly and the second receiving assembly correspond to the bottle unloading positions of the bottle unloading mechanism of the bottle making machine B part, and the bottle dropping positions of the first receiving assembly and the second receiving assembly correspond to the bottle input positions of the bottle quality inspection system transportation line.

[0010] As a limitation of the present invention, the variable pitch adjustment assembly includes a mounting plate and a linear drive, a vertical guide rail and an inclined guide rail fixedly mounted on the mounting plate;

[0011] The distance between the bottoms of the vertical guide rail and the inclined guide rail is smaller than the distance between the tops;

[0012] The power output end of the linear drive is vertically downward and is connected to the vertical guide rail and the inclined guide rail at the same time.

[0013] As a further limitation of the present invention, a connecting plate is horizontally fixedly mounted at the bottom end of the power output end of the linear actuator, and a long strip hole is opened in the horizontal direction on the connecting plate;

[0014] The bottom end of the vertical guide rail is fixedly connected to the connecting plate;

[0015] The bottom end of the inclined guide rail is slidably assembled in the long strip hole through a bearing.

[0016] As a further limitation of the present invention, the first material receiving assembly and the second material receiving assembly have the same structure, and both include a fixed angle iron, a movable material receiving plate assembled on the fixed angle iron through an opening and closing guide rail, and a fixed material receiving plate fixedly mounted on the fixed angle iron;

[0017] The movable material receiving plate and the fixed material receiving plate are mirror-symmetrical and inclined toward each other, and the two form the material receiving trough;

[0018] The opening and closing guide rail is perpendicular to the symmetric plane of the movable material receiving plate and the fixed material receiving plate, so that the movable material receiving plate can be close to or away from the fixed material receiving plate to realize the opening and closing of the material receiving trough;

[0019] A return spring is connected between the outer end of the opening and closing guide rail and the fixed angle iron;

[0020] A limiting column is threadedly connected to the outer end of the opening and closing guide rail. The limiting column is horizontally arranged with its free end facing the side of the fixed angle iron. The free end of the limiting column can contact the side of the fixed angle iron.

[0021] As a further limitation of the present invention, the fixed angle iron of the first material receiving assembly is assembled on the vertical guide rail, and the fixed angle iron of the second material receiving assembly is assembled on the inclined guide rail;

[0022] The opening and closing guide rails of the first material receiving assembly and the opening and closing guide rails of the second material receiving assembly are horizontally collinear. When they descend synchronously, the inner ends of the two opening and closing guide rails can contact each other, so that the movable material receiving plate is away from the fixed material receiving plate to drop the bottles.

[0023] As a further limitation of the present invention, an L-shaped limit plate is fixedly mounted on the fixed angle iron of the first material receiving assembly or the fixed angle iron of the second material receiving assembly, and the free end of the L-shaped limit plate extends to the front of the outer end of the opening and closing guide rail.

[0024] Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0025] (1) The utility model can receive and transfer two finished bottles at the same time, and can adjust the bottle spacing between the two finished bottles during transfer, so that they are adjusted from the large bottle spacing corresponding to the B part of the bottle making machine to the small bottle spacing corresponding to the bottle quality inspection system transportation line, and then cooperate with the bottle unloading and transfer mechanism to realize the simultaneous transfer of the two finished bottles from the B part of the bottle making machine to the bottle quality inspection system, which can double the work efficiency of transferring the finished bottles.

[0026] (2) The utility model is provided with a vertical guide rail and an inclined guide rail whose bottoms are close to each other and whose tops are far away from each other. The first material receiving assembly is mounted on the vertical guide rail, and the second material receiving assembly is mounted on the inclined guide rail. When the first material receiving assembly and the second material receiving assembly are driven by a linear drive to synchronously descend along the guide rail (the vertical guide rail or the inclined guide rail), the first material receiving assembly and the second material receiving assembly are close to each other, thereby being able to reduce the distance between the two finished bottles while transferring the finished bottles downward (one finished bottle is respectively received on the first material receiving assembly and one finished bottle is received on the second material receiving assembly). The utility model performs the transfer and distance change of the finished bottles synchronously, and has high working efficiency.

[0027] (3) In the present invention, the material receiving troughs of the first material receiving assembly and the second material receiving assembly are both composed of a movable material receiving plate and a fixed material receiving plate, wherein the movable material receiving plate is assembled on an opening and closing guide rail and can be moved closer to or away from the fixed material receiving plate, thereby realizing the opening and closing of the material receiving trough.

[0028] When the first material receiving component and the second material receiving component descend synchronously, the inner end of the opening and closing guide rail of the first material receiving component can contact with the inner end of the opening and closing guide rail of the second material receiving component. After the contact, the two opening and closing guide rails can no longer approach each other. Thereafter, when the first material receiving component and the second material receiving component further descend synchronously, the movable material receiving plate will be moved away from the fixed material receiving plate, thereby opening the material receiving groove to complete the bottle dropping. The structural design is ingenious, and the distance change and bottle dropping actions are smooth.

[0029] (4) In the present invention, a return spring is connected between the outer end of the opening and closing guide rail and the fixed angle iron. When the first material receiving assembly and the second material receiving assembly rise synchronously along the guide rail (vertical guide rail or inclined guide rail), after the inner ends of the two opening and closing guide rails are separated, the return spring can make the movable material receiving plate close to the fixed material receiving plate, thereby realizing the closing of the material receiving trough and preparing for the next bottle receiving;

[0030] The limit column threadedly connected on the outer end of the opening and closing guide rail in the utility model can limit the minimum distance between the movable material receiving plate and the fixed material receiving plate, which can effectively prevent the next material receiving trough from being unable to open normally due to excessive return of the movable material receiving plate.

[0031] (5) The L-shaped limit plate provided in the utility model can prevent the situation in which, when the inner ends of the two opening and closing guide rails come into contact, only one opening and closing guide rail moves due to friction while the other opening and closing guide rail is stuck and does not move, thereby preventing the situation in which only the receiving slot of the first material receiving component is opened, or only the receiving slot of the second material receiving component is opened.

[0032] In summary, the utility model has an ingenious structural design, smooth and precise movements, can receive and transfer two finished bottles at one time, and adjust the bottle distance between the two finished bottles during transfer. It is suitable for application between the B part of the bottle making machine and the bottle quality inspection system, and is used to cooperate with the bottle unloading and transfer mechanism to unload and transfer two finished bottles at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0035] Figure 2 This is a schematic diagram of the structure of the variable pitch adjustment assembly in the embodiment of the utility model;

[0036] Figure 3 This is a structural schematic diagram of the first material receiving assembly in an embodiment of the utility model;

[0037] Figure 4 This is a schematic diagram of the application structure of an embodiment of the utility model;

[0038] In the figure: 1. Variable pitch adjustment assembly; 2. First material receiving assembly; 3. Second material receiving assembly; 4. L-shaped limit plate; 5. B part of bottle making machine; 6. Bottle unloading and transfer mechanism; 7. Bottle quality inspection system transportation line;

[0039] 101, mounting plate; 102, linear drive; 103, vertical guide rail; 104, inclined guide rail; 105, connecting plate; 106, long hole;

[0040] 201, fixed angle iron; 202, movable material receiving plate; 203, fixed material receiving plate; 204, opening and closing guide rail; 205, first variable distance baffle; 206, second variable distance baffle; 207, vertical part; 208, slope part; 209, reset spring; 210, limit column. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present invention, and are not used to limit the present invention.

[0042] Embodiment A mid-shift distance mechanism for unloading bottles

[0043] like Figure 1 As shown, this embodiment includes a variable distance adjustment component 1 and a first material receiving component 2 and a second material receiving component 3 mounted on the power output end of the variable distance adjustment component 1, wherein the first material receiving component 2 and the second material receiving component 3 both have material receiving grooves that open and close automatically. Under the control of the variable distance adjustment component 1, the first material receiving component 2 and the second material receiving component 3 can synchronously transfer two finished bottles and adjust the bottle spacing, so that they are adjusted from the large bottle spacing corresponding to the bottle making machine B part 5 to the small bottle spacing corresponding to the bottle body quality detection system transportation line 7, and then cooperate with the bottle unloading and transfer mechanism 6 to realize the simultaneous transfer of the two finished bottles from the bottle making machine B part 5 to the bottle body quality detection system.

[0044] 1. Pitch adjustment component 1

[0045] like Figure 2 As shown, the variable pitch adjustment assembly 1 includes a mounting plate 101 and a linear drive 102, a vertical guide rail 103 and an inclined guide rail 104 fixed on the mounting plate 101. The vertical guide rail 103 and the inclined guide rail 104 both include a moving part and a bearing and guiding part, wherein the moving part is a slider and the bearing and guiding part is a slideway. The inclined guide rail 104 is arranged at an angle, and its bottom end approaches the vertical guide rail 103, that is, the distance between the bottoms of the slider of the inclined guide rail 104 and the slider of the vertical guide rail 103 is smaller than the distance between the tops, so that when the slider slides downward along the slideway, the bottom end of the slider of the inclined guide rail 104 gradually approaches the bottom end of the slider of the vertical guide rail 103.

[0046] The linear drive 102 is a cylinder, the power output end of which is vertically downward, and a horizontal connecting plate 105 is fixedly installed at the bottom. Figure 2 As shown, a long hole 106 is provided in the horizontal direction on the connecting plate 105. The bottom end of the slider of the vertical guide rail 103 is fixedly connected to the connecting plate 105; the bottom end of the slider of the inclined guide rail 104 is slidably assembled in the long hole 106 through a bearing. In this way, the linear actuator 102 can synchronously drive the vertical guide rail 103 and the inclined guide rail 104.

[0047] Of course, the linear drive 102 may also adopt a linear motor, an electric push rod, etc. in the prior art.

[0048] The working process of the variable distance adjustment component 1 is as follows: the power output end of the cylinder extends, and the sliders of the vertical guide rail 103 and the sliders of the inclined guide rail 104 move downward along their respective slides, and at the same time, the bottom end of the slider of the inclined guide rail 104 approaches the bottom end of the slider of the vertical guide rail 103; the power output end of the cylinder retracts, and the sliders of the vertical guide rail 103 and the sliders of the inclined guide rail 104 move upward along their respective slides, and at the same time, the bottom end of the slider of the inclined guide rail 104 moves away from the bottom end of the slider of the vertical guide rail 103.

[0049] 2. The first material receiving component 2 and the second material receiving component 3

[0050] like Figure 1 As shown, the fixed end of the first material receiving component 2 and the fixed end of the second material receiving component 3 are both connected to the power output end of the variable distance adjustment component 1, and the two are arranged in mirror symmetry. The variable distance adjustment component 1 is controlled to adjust the horizontal distance and vertical height between the material receiving trough of the first material receiving component 2 and the material receiving trough of the second material receiving component 3.

[0051] In this embodiment, the first material receiving component 2 has the same structure as the second material receiving component 3. The structure of the first material receiving component 2 is described as follows: Figure 3 As shown, the first material receiving assembly 2 includes a fixed angle iron 201, a movable material receiving plate 202 and a fixed material receiving plate 203. The fixed angle iron 201 is used to realize the installation on the vertical guide rail 103 (the fixed angle iron 201 of the second material receiving assembly 3 is used to realize the installation on the inclined guide rail 104), and a horizontal opening and closing guide rail 204 is assembled on the fixed angle iron 201. The opening and closing guide rail 204 includes an opening and closing slideway fixedly mounted on the fixed angle iron 201 and an opening and closing slider slidably assembled on the opening and closing slideway.

[0052] The movable material receiving plate 202 and the fixed material receiving plate 203 are mirror-symmetrical and tilted toward each other. Figure 3As shown, the two constitute the receiving trough of the first receiving assembly 2. Specifically, the movable receiving plate 202 is fixed on the above-mentioned opening and closing slider through the first variable-pitch baffle 205, and the fixed receiving plate 203 is fixed on the above-mentioned fixed angle iron 201 through the second variable-pitch baffle 206. The extension direction of the opening and closing slider is perpendicular to the symmetry plane of the movable receiving plate 202 and the fixed receiving plate 203, that is, when the opening and closing slider moves along the opening and closing slide, it can drive the movable receiving plate 202 to approach or move away from the fixed receiving plate 203 to achieve the opening and closing of the receiving trough. (When approaching, the gap between the movable receiving plate 202 and the fixed receiving plate 203 becomes smaller, and the finished bottle cannot fall from the bottom. This is the closed state; when moving away, the gap between the movable receiving plate 202 and the fixed receiving plate 203 becomes larger, and the finished bottle can fall from the bottom. This is the open state.)

[0053] Furthermore, the first variable distance baffle 205 and the second variable distance baffle 206 both include a vertical portion 207 and a slope portion 208, wherein the slope portion 208 is used to fix the movable receiving plate 202 or the fixed receiving plate 203, and the vertical portion 207 serves as a limiter to prevent the finished bottles from falling from both sides of the receiving trough.

[0054] like Figure 3 As shown, in this embodiment, a reset spring 209 is connected between the outer end of the opening and closing slider of the opening and closing guide rail 204 and the fixed angle iron 201. The reset spring 209 can be used to pull the opening and closing slider to move inward along the opening and closing slideway, thereby resetting the movable material receiving plate 202 to be close to the fixed material receiving plate 203, thereby realizing the automatic closing of the material receiving trough and preparing for the next bottle receiving and transportation.

[0055] In addition, a limit column 210 is threadedly connected to the outer end of the opening and closing slider, and the limit column 210 is horizontally arranged, and the free end faces the side of the fixed angle iron 201. When the opening and closing slider returns under the action of the above-mentioned return spring 209, the free end of the limit column 210 can contact the side of the fixed angle iron 201, thereby limiting the return distance of the opening and closing slider, and preventing the opening and closing slider from returning too much and affecting the opening of the receiving chute next time. In actual use, by adjusting the extension length of the limit column 210 to the side of the fixed angle iron 201, the final return distance of the opening and closing slider can be changed.

[0056] In this embodiment, the first material receiving assembly 2 is assembled on the slider of the vertical guide rail 103, and the second material receiving assembly 3 is assembled on the slider of the inclined guide rail 104. Figure 1 As shown, the opening and closing guide rail 204 of the first material receiving component 2 is horizontally collinear with the opening and closing guide rail 204 of the second material receiving component 3. When the first material receiving component 2 and the second material receiving component 3 descend synchronously, the inner ends of the opening and closing sliders in the two opening and closing guide rails 204 can contact each other, so that the movable material receiving plate 202 is away from the fixed material receiving plate 203, thereby realizing the opening of the material receiving trough for dropping bottles.

[0057] In this embodiment, an L-shaped limit plate 4 is also fixedly installed on the fixed angle iron 201 of the first material receiving component 2, and the free end of the L-shaped limit plate 4 extends to the front of the outer end of the opening and closing slider of the opening and closing guide rail 204. When the inner ends of the two opening and closing sliders are in contact, the L-shaped limit plate 4 can prevent only one opening and closing slider from moving to the same outer side along the opening and closing slide, thereby causing only the material receiving slot of the first material receiving component 2 to be opened, or only the material receiving slot of the second material receiving component 3 to be opened.

[0058] It should be noted that the same function can be achieved by installing the L-shaped limiting plate 4 on the fixed angle iron 201 of the second material receiving assembly 3 .

[0059] 3. Application Implementation

[0060] like Figure 4 As shown, this embodiment is fixedly mounted between the bottle unloading and transfer mechanism 6 of the bottle making machine B part 5 and the bottle quality detection system transportation line 7 through the mounting plate 101 of the variable distance adjustment component 1, and the bottle receiving positions of the first material receiving component 2 and the second material receiving component 3 correspond to the bottle unloading positions of the bottle unloading and transfer mechanism 6, and the bottle dropping positions of the first material receiving component 2 and the second material receiving component 3 correspond to the bottle input positions of the bottle quality detection system transportation line 7.

[0061] The specific working process is as follows: the bottle unloading and transfer mechanism 6 unloads two finished bottles from the bottle making machine B part 5 at one time, and after adjusting the postures of the two finished bottles, puts them into the receiving slots of the first receiving component 2 and the second receiving component 3; then, the cylinder power output end in the variable pitch adjustment component 1 extends out, and controls the slider of the vertical guide rail 103 and the slider of the inclined guide rail 104 to move downward along their respective slideways to drive the first receiving component 2 and the second receiving component 3 to descend synchronously; when descending synchronously, the first receiving component 2 and the second receiving component 3 gradually approach each other, and the inner ends of the two opening and closing sliders approach each other until they touch each other; when the inner ends of the two opening and closing sliders touch each other, the first receiving component 2 and the second receiving component 3 are moved downward by the cylinder power output end in the variable pitch adjustment component 1. When the two cannot get any closer, and thereafter the first material receiving component 2 and the second material receiving component 3 continue to descend synchronously, the fixed material receiving plate 203 of the first material receiving component 2 and the fixed material receiving plate 203 of the second material receiving component 3 will approach each other, while the distance between the two movable material receiving plates 202 remains unchanged, that is, the movable material receiving plates 202 and the corresponding fixed material receiving plates 203 in the same group of material receiving components move away from each other, so that the bottom gap gradually becomes larger (that is, the material receiving groove opens), until the finished bottle falls from the bottom gap onto the bottle body quality inspection system transportation line 7 (at this time, the bottle distance between the two finished bottles corresponds to the bottle distance on the bottle body quality inspection system transportation line 7).

[0062] Then, the cylinder power output end in the variable pitch adjustment component 1 is retracted, and the slider of the vertical guide rail 103 and the slider of the inclined guide rail 104 are controlled to move upward along their respective slideways to drive and control the first material receiving component 2 and the second material receiving component 3 to rise synchronously; when rising synchronously, the first material receiving component 2 and the second material receiving component 3 gradually move away from each other, and the inner ends of the two opening and closing sliders are separated; when the inner ends of the two opening and closing sliders are separated, the return spring 209 will act to pull the opening and closing slider to move inward so that the movable material receiving plate 202 gradually approaches the fixed material receiving plate 203, so that the bottom gap is gradually reduced (that is, the material receiving groove is closed), and under the limiting action of the limiting column 210, the return distance of the opening and closing slider is controlled. When the first material receiving component 2 and the second material receiving component 3 rise to a predetermined height, the distance between the two material receiving grooves corresponds exactly to the bottle distance after the bottle unloading and transfer mechanism 6 clamps two finished bottles.

[0063] The above actions are repeated, and the bottle unloading and transporting mechanism 6 unloads and transports two finished bottles at the same time.

[0064] It should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mid-shift distance mechanism for unloading bottles, characterized in that: It includes a first material receiving component and a second material receiving component that are mirror-symmetrical, both of which have a material receiving trough that opens and closes automatically; it also includes a variable distance adjustment component, the power output end of which is connected to the fixed end of the first material receiving component and the fixed end of the second material receiving component, so as to adjust the horizontal distance and vertical height of the two material receiving troughs; The bottle receiving positions of the first receiving assembly and the second receiving assembly correspond to the bottle unloading positions of the bottle unloading mechanism of the bottle making machine B part, and the bottle dropping positions of the first receiving assembly and the second receiving assembly correspond to the bottle input positions of the bottle quality inspection system transportation line.

2. The intermediate shifting mechanism for unloading bottles according to claim 1, characterized in that: The variable pitch adjustment assembly includes a mounting plate and a linear drive, a vertical guide rail and an inclined guide rail fixedly mounted on the mounting plate; The distance between the bottoms of the vertical guide rail and the inclined guide rail is smaller than the distance between the tops; The power output end of the linear drive is vertically downward and is connected to the vertical guide rail and the inclined guide rail at the same time.

3. The intermediate shifting mechanism for unloading bottles according to claim 2, characterized in that: A connecting plate is fixedly mounted horizontally at the bottom of the power output end of the linear drive, and a long hole is opened in the horizontal direction on the connecting plate; The bottom end of the vertical guide rail is fixedly connected to the connecting plate; The bottom end of the inclined guide rail is slidably assembled in the long strip hole through a bearing.

4. A mid-shift distance changing mechanism for unloading bottles according to claim 2 or 3, characterized in that: The first material receiving assembly and the second material receiving assembly have the same structure, both comprising a fixed angle iron, a movable material receiving plate assembled on the fixed angle iron through an opening and closing guide rail, and a fixed material receiving plate fixedly mounted on the fixed angle iron; The movable material receiving plate and the fixed material receiving plate are mirror-symmetrical and inclined toward each other, and the two form the material receiving trough; The opening and closing guide rail is perpendicular to the symmetric plane of the movable material receiving plate and the fixed material receiving plate, so that the movable material receiving plate can be close to or away from the fixed material receiving plate to realize the opening and closing of the material receiving trough; A return spring is connected between the outer end of the opening and closing guide rail and the fixed angle iron; A limiting column is threadedly connected to the outer end of the opening and closing guide rail. The limiting column is horizontally arranged with its free end facing the side of the fixed angle iron. The free end of the limiting column can contact the side of the fixed angle iron.

5. The intermediate shifting mechanism for unloading bottles according to claim 4, characterized in that: The fixed angle iron of the first material receiving assembly is assembled on the vertical guide rail, and the fixed angle iron of the second material receiving assembly is assembled on the inclined guide rail; The opening and closing guide rails of the first material receiving assembly and the opening and closing guide rails of the second material receiving assembly are horizontally collinear. When they descend synchronously, the inner ends of the two opening and closing guide rails can contact each other, so that the movable material receiving plate is away from the fixed material receiving plate to drop the bottles.

6. The intermediate shifting mechanism for unloading bottles according to claim 5, characterized in that: An L-shaped limiting plate is fixedly mounted on the fixed angle iron of the first material receiving assembly or the fixed angle iron of the second material receiving assembly, and the free end of the L-shaped limiting plate extends to the front of the outer end of the opening and closing guide rail.

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