Variable-pitch extension taking and placing mechanism

Abstract

The utility model relates to a variable-pitch extension taking and placing mechanism, and belongs to the technical field of improvement of medicine bag finishing machines. Comprising a horizontally-arranged variable-pitch track plate and a linear guide sliding rod parallel to the variable-pitch track plate, a first sliding rail and a second sliding rail which are parallel to each other are arranged on the two side edges of the variable-pitch track plate correspondingly, and the other end of an end connecting plate A is in sliding fit with the first sliding rail through a first sliding block; the other end of the end connecting plate B is in sliding fit with a second sliding rail through a second sliding block, a negative pressure suction cup is installed on the outer side face of each sliding base, an in-groove sliding block is installed on the back face of each sliding base, the in-groove sliding blocks are in sliding fit with variable-pitch sliding grooves, and the distance between every two adjacent variable-pitch sliding grooves is gradually increased from the top ends of the variable-pitch sliding grooves to the bottom ends of the variable-pitch sliding grooves. The variable-pitch expansion mechanism has the advantages that compared with a variable-pitch expansion mechanism of an original medicine bag finishing machine, the problem that medicine bag taking and placing variable pitches are not stable is solved. Springs are not used, replacement of quick-wear parts is avoided, and the operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to a variable-distance expansion pick-and-place mechanism, belonging to the technical field of medicine bag sorting machine transformation. Background Art

[0002] In the pharmaceutical granule packaging industry, composite film medicine bag packaging is its main form. With the advancement of pharmaceutical granule packaging technology, fully automated granule packaging production lines will gradually replace manual or semi-automatic production lines, and realize the full automation of granule bagging and sealing, three-stage printing, weighing, medicine bag stacking, boxing, packing, and warehousing production lines. Among them, the medicine bag weighing and stacking are completed by the sorting machine. The sorting machine is responsible for weighing the multi-channel medicine bags one by one, placing the medicine bags on the corresponding workstations after variable distance expansion, and after completing the stacking of a certain number of layers, the multi-layer medicine bags are placed on the corresponding conveyor for the cartoning machine to use for boxing.

[0003] After searching, the patent application with patent number CN201922104957.1 discloses an automatic distance changing mechanism for a shielding cover, including a distance changing cylinder and a suction nozzle, the rear end of the distance changing cylinder is equipped with an upper and lower cylinder, connecting springs are installed on the left and right sides below the distance changing cylinder, and a connecting pin penetrates the inside of the connecting spring, a distance changing plate is installed below the distance changing cylinder, and a distance changing column is arranged inside the front end of the distance changing plate, and the suction nozzle is located below the connecting frame.

[0004] The variable pitch expansion mechanism of the medicine bag sorting machine currently used has the following disadvantages: 1. The variable pitch expansion mechanism of the sorting machine uses spring elastic force to control the variable pitch expansion spacing. Since the spring elastic force is greatly affected by objective factors, the variable pitch expansion spacing is unstable and the medicine bags are easily misplaced. 2. The spring used in the variable pitch expansion mechanism is prone to fatigue fracture after long-term use, and the broken spring needs to be replaced frequently, which increases the equipment maintenance cost.

[0005] In order to solve one of the above problems, a variable distance expansion pick-and-place mechanism is urgently needed. Utility Model Content

[0006] In view of the above deficiencies in the prior art, the technical problem to be solved by the present invention is: how to abandon the use of springs and solve the problem of unstable variable distance of medicine bag picking and placing while meeting the use requirements, and to provide a variable distance extended picking and placing mechanism for this purpose.

[0007] The variable pitch extension pick-and-place mechanism described in the utility model is characterized in that it includes a variable pitch track plate arranged horizontally and a linear guide slide bar parallel to the variable pitch track plate, the two sides of the variable pitch track plate are respectively provided with a first slide rail and a second slide rail parallel to each other, and also includes an end connecting plate A and an end connecting plate B parallel to each other, a linear guide slide bar is connected between the end connecting plate A and the end connecting plate B, the other end of the end connecting plate A is slidably matched with the first slide rail through a first slider, and the other end of the end connecting plate B is slidably matched with the second slide rail through a second slider, and a linear guide slide bar reciprocating driving mechanism for driving the end connecting plate A and / or the end connecting plate B to reciprocate along the corresponding slide rail is provided on one side of the variable pitch track plate, multiple groups of slide seats are slidably arranged on the linear guide slide bar, negative pressure suction cups are installed on the outer surface of the slide seat, and a groove slider is installed on the back of each group of the slide seats, respectively, and the surface of the variable pitch track plate is provided with variable pitch slide grooves that slide in cooperation with multiple groups of corresponding groove sliders, and the spacing between two adjacent groups of variable pitch slide grooves gradually increases from the top to the bottom.

[0008] The negative pressure suction cup grabs the medicine bag from the feeding side, and the output end of the reciprocating drive mechanism of the linear guide slide bar is connected to the end connecting plate A or the end connecting plate B. The end connecting plate A and the end connecting plate B are first driven to move forward along the length direction of the first slide rail and the second slide rail respectively. The end connecting plate A and the end connecting plate B drive the linear guide slide bar to move along one end of the variable pitch track plate to the other end. During the movement, the slider in the groove always slides in the corresponding variable pitch slide groove. Since the spacing between the two adjacent groups of the variable pitch slide grooves gradually increases from the top to the bottom, , and then with the coordinated cooperation of the variable-pitch slide and the slider in the slot, the distance between adjacent slides on the linear guide slide becomes larger, the negative pressure suction cup is transferred to the upper side of the discharge side, and the negative pressure suction cup releases the medicine bag; on the contrary, the reciprocating drive mechanism of the linear guide slide drives the end connecting plate A and the end connecting plate B to move in opposite directions along the length direction of the first slide rail and the second slide rail respectively, and with the coordinated cooperation of the variable-pitch slide and the slider in the slot, the distance between adjacent slides on the linear guide slide becomes smaller, reset, and the negative pressure suction cup grabs the next group of medicine bags from the feeding side again.

[0009] This mechanism includes a variable pitch track plate and a slide seat made of nylon material; there are multiple variable pitch slide grooves on the front of the variable pitch track plate, which serve as groove-type tracks for constraining the variable pitch of the slide seat, and there is a linear guide rail on each side of the variable pitch track plate for constraining the movement of the linear guide slide rod; through the synergistic effect of the above-mentioned structures, the variable pitch taking and placing of the medicine bag can be achieved.

[0010] Preferably, the negative pressure suction cup is a medicine bag negative pressure suction cup used for vacuum adsorption of workpieces to be processed; an air flow groove is provided on the medicine bag negative pressure suction cup; an exhaust hole connected to the vacuum pump is provided in the air flow groove, and the vacuum pump is used to extract the air in the air flow groove of the product negative pressure suction cup to suck the medicine bag, and the negative pressure suction cup is controlled to take and place the medicine bag by opening and closing the vacuum pump.

[0011] Preferably, the first slider and the first slide rail cooperate to form a first set of linear guide rail pairs; the second slider and the second slide rail cooperate to form a second set of linear guide rail pairs.

[0012] Preferably, two groups of the linear guide slide bars are arranged at intervals, and both groups of linear guide slide bars penetrate corresponding slide seats and slide in cooperation with the slide seats.

[0013] Preferably, the sliding block in the groove is a bearing rotatably mounted on the end of the connecting rod, and the connecting rod is fixedly connected to the sliding seat.

[0014] Preferably, the slide seat is a linear bearing seat, which has a linear bearing that slides with the linear guide slide rod.

[0015] Preferably, the slide is connected to the negative pressure suction cup via a rotary swing cylinder, and the rotary swing cylinder can drive the negative pressure suction cup to rotate back and forth, thereby achieving variable distance and rotational placement of the medicine bag.

[0016] Preferably, six groups of slide seats are provided.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] Compared with the variable distance expansion mechanism of the original medicine bag sorting machine, the variable distance expansion mechanism of the utility model solves the problem of unstable variable distance of medicine bag picking and placing.

[0019] The variable-distance expansion pick-and-place mechanism of the utility model does not use springs and has no wearing parts to replace, thereby reducing operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0021] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 3 It is a side view of the utility model;

[0024] In the figure: 1, variable pitch track plate 2, linear guide slide rod 3, slide seat 4, end connecting plate A 5, end connecting plate B6, first slider 7, second slider 8, first slide rail 9, second slide rail 10, variable pitch slide groove 11, slide block in groove 12, negative pressure suction cup. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings: The utility model is further illustrated below through specific embodiments, but is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the invention should be included in the protection scope of the utility model.

[0026] Embodiment 1, as Figure 1-2 As shown, the variable pitch expansion pick-and-place mechanism comprises a horizontally arranged variable pitch track plate 1 and a linear guide slide bar 2 which is parallel to the variable pitch track plate 1, and the two sides of the variable pitch track plate 1 are respectively provided with a first slide rail 8 and a second slide rail 9 which are parallel to each other, and also comprises an end connecting plate A4 and an end connecting plate B5 which are parallel to each other, and the linear guide slide bar 2 is connected between the end connecting plate A4 and the end connecting plate B5, and the other end of the end connecting plate A4 is slidably matched with the first slide rail 8 through a first slider 6, and the other end of the end connecting plate B5 is slidably matched with the second slide rail 9 through a second slider 7, and a plurality of groups of slide seats 3 are slidably arranged on the linear guide slide bar 2, and a negative pressure suction cup 12 is installed on the outer surface of the slide seat 3, and a groove slider 11 is installed on the back of each group of the slide seats 3, respectively, and a variable pitch slide groove 10 which slides with the plurality of groups of corresponding groove sliders 11 is opened on the surface of the variable pitch track plate 1, and the spacing between two adjacent groups of the variable pitch slide grooves 10 gradually increases from the top to the bottom.

[0027] One side of the variable pitch track plate 1 is provided with a linear guide slide rod reciprocating drive mechanism that drives the end connecting plate A4 and / or the end connecting plate B5 to reciprocate along the corresponding slide rail. It is an existing structure and can be a driving cylinder or a reduction motor with a multi-link structure.

[0028] The negative pressure suction cup 12 grabs the medicine bag from the feeding side, and the output end of the reciprocating drive mechanism of the linear guide slide rod is connected to the end connecting plate A4 or the end connecting plate B5. The end connecting plate A4 and the end connecting plate B5 are first driven to move forward along the length direction of the first slide rail 8 and the second slide rail 9 respectively. The end connecting plate A4 and the end connecting plate B5 drive the linear guide slide rod 2 to move along one end of the variable pitch track plate 1 to the other end. During the movement, the slider 11 in the groove always slides in the corresponding variable pitch slide groove 10. Since the spacing between the two adjacent groups of the variable pitch slide grooves 10 gradually increases from the top to the bottom, the linear guide slide rod 2 moves forward along the length direction of the first slide rail 8 and the second slide rail 9 respectively. With the coordinated cooperation of the variable-pitch slide 10 and the slider 11 in the groove, the distance between adjacent slides 3 on the linear guide slide 2 becomes larger, and the negative pressure suction cup 12 is transferred to the upper side of the discharge side, and the negative pressure suction cup 12 releases the medicine bag; on the contrary, the reciprocating drive mechanism of the linear guide slide drives the end connecting plate A4 and the end connecting plate B5 to move in opposite directions along the length direction of the first slide rail 8 and the second slide rail 9 respectively. With the coordinated cooperation of the variable-pitch slide 10 and the slider 11 in the groove, the distance between adjacent slides 3 on the linear guide slide 2 becomes smaller, resets, and the negative pressure suction cup 12 grabs the next group of medicine bags from the feeding side again.

[0029] This mechanism includes a variable pitch track plate and a slide seat 3 made of nylon material; there are multiple variable pitch slide grooves 10 on the front of the variable pitch track plate 1, which serve as groove-type tracks to constrain the variable pitch of the slide seat 3, and there is a linear guide rail on each side of the variable pitch track plate 1 to constrain the movement of the linear guide slide rod 2; through the synergistic effect of the above-mentioned structure, the variable pitch taking and placing of the medicine bag can be realized.

[0030] Embodiment 2, as Figure 1-3 As shown, the variable pitch extended pick-and-place mechanism comprises a horizontally arranged variable pitch track plate 1 and a linear guide slide bar 2 which is parallel to the variable pitch track plate 1, the two sides of the variable pitch track plate 1 are respectively provided with a first slide rail 8 and a second slide rail 9 which are parallel to each other, and also comprises an end connecting plate A4 and an end connecting plate B5 which are parallel to each other, the end connecting plate A4 and the end connecting plate B5 are connected with the linear guide slide bar 2, the other end of the end connecting plate A4 is slidably matched with the first slide rail 8 through a first slider 6, and the other end of the end connecting plate B5 is slidably matched with the second slide rail 8 through a second slider 7. The variable pitch track plate 1 slides in cooperation with the rail 9, and one side of the variable pitch track plate 1 is provided with a linear guide slide rod reciprocating drive mechanism that drives the end connecting plate A4 and / or the end connecting plate B5 to reciprocate along the corresponding slide rail. Multiple groups of slide seats 3 are slidably arranged on the linear guide slide rod 2, and negative pressure suction cups 12 are installed on the outer surface of the slide seat 3. A groove slider 11 is installed on the back of each group of the slide seats 3. The surface of the variable pitch track plate 1 is provided with variable pitch slide grooves 10 that slide in cooperation with multiple groups of corresponding groove sliders 11, and the spacing between two adjacent groups of the variable pitch slide grooves 10 gradually increases from the top to the bottom.

[0031] Furthermore, the negative pressure suction cup 12 is an existing medicine bag negative pressure suction cup used for vacuum adsorption of workpieces to be processed; an air flow groove is provided on the medicine bag negative pressure suction cup; an exhaust hole connected to the vacuum pump is provided in the air flow groove, and the vacuum pump is used to extract the air in the air flow groove of the product negative pressure suction cup to suck the medicine bag, and the negative pressure suction cup 12 is controlled to take and place the medicine bag by opening and closing the vacuum pump.

[0032] Furthermore, the first slider 6 and the first slide rail 8 cooperate to form a first set of linear guide rails; the second slider 7 and the second slide rail 9 cooperate to form a second set of linear guide rails.

[0033] Furthermore, two groups of the linear guide slide bars 2 are arranged at intervals, and both groups of the linear guide slide bars 2 penetrate the corresponding slide seats 3 and slide in cooperation with the slide seats 3 .

[0034] Furthermore, the in-groove slider 11 is a bearing rotatably mounted on the end of a connecting rod, and the connecting rod is fixedly connected to the sliding seat 3 .

[0035] Furthermore, the slide seat 3 is a linear bearing seat, which has a linear bearing that slides with the linear guide slide rod 2.

[0036] Furthermore, the slide seat 3 is connected to the negative pressure suction cup 12 via a rotary swing cylinder, and the rotary swing cylinder can drive the negative pressure suction cup 12 to rotate back and forth, thereby realizing variable distance and rotational placement of the medicine bag.

[0037] Furthermore, the slide seats 3 are provided in six groups.

[0038] Compared with the variable distance expansion mechanism of the original medicine bag sorting machine, the variable distance expansion mechanism of the utility model solves the problem of unstable variable distance of medicine bag picking and placing.

[0039] The variable-distance expansion pick-and-place mechanism of the utility model does not use springs and has no wearing parts to replace, thereby reducing operating costs.

[0040] The variable-pitch expansion pick-and-place mechanism described in the utility model solves industry problems and promotes the application of the variable-pitch expansion mechanism in a fully automated granule packaging production line.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the present utility model is defined by the attached claims and their equivalents.

[0042] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A variable distance extended pick-and-place mechanism, characterized in that: The invention comprises a horizontally arranged variable pitch track plate (1) and a linear guide slide bar (2) which is parallel to the variable pitch track plate (1), wherein the two sides of the variable pitch track plate (1) are respectively provided with a first slide rail (8) and a second slide rail (9) which are parallel to each other, and further comprises an end connecting plate A (4) and an end connecting plate B (5) which are parallel to each other, wherein the linear guide slide bar (2) is connected between the end connecting plate A (4) and the end connecting plate B (5), and the other end of the end connecting plate A (4) is slidably matched with the first slide rail (8) through a first slider (6), and the end connecting plate A (4) is slidably matched with the first slide rail (8) through a first slider (6). The other end of the connecting plate B (5) slides in cooperation with the second slide rail (9) through the second slider (7), and a plurality of groups of slide seats (3) are slidably arranged on the linear guide slide rod (2), and a negative pressure suction cup (12) is installed on the outer surface of the slide seat (3), and a groove slider (11) is installed on the back of each group of the slide seats (3). The surface of the variable pitch track plate (1) is provided with variable pitch slide grooves (10) that slide in cooperation with the plurality of groups of corresponding groove sliders (11), and the distance between two adjacent groups of the variable pitch slide grooves (10) gradually increases from the top to the bottom.

2. The variable distance extended pick-and-place mechanism according to claim 1, characterized in that: The negative pressure suction cup (12) is a medicine bag negative pressure suction cup used for vacuum adsorbing a workpiece to be processed; an air flow groove is provided on the medicine bag negative pressure suction cup; and an air extraction hole connected to a vacuum pump is provided in the air flow groove.

3. The variable distance extended pick-and-place mechanism according to claim 2, characterized in that: The first sliding block (6) and the first sliding rail (8) cooperate to form a first set of linear guide rail pairs; the second sliding block (7) and the second sliding rail (9) cooperate to form a second set of linear guide rail pairs.

4. The variable distance extended pick-and-place mechanism according to claim 3, characterized in that: The linear guide slide bars (2) are arranged in two groups at intervals, and the two groups of linear guide slide bars (2) both penetrate the corresponding slide seats (3) and slide in cooperation with the slide seats (3).

5. The variable distance extended pick-and-place mechanism according to claim 4, characterized in that: The in-groove sliding block (11) is a bearing rotatably mounted on the end of a connecting rod, and the connecting rod is fixedly connected to the sliding seat (3).

6. The variable distance extended pick-and-place mechanism according to claim 5, characterized in that: The slide seat (3) is a linear bearing seat, which contains a linear bearing that is slidably matched with the linear guide slide rod (2).

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