Bag crushing and grabbing clamp
By installing a detachable auxiliary shaft at the connecting shaft end of the bag crushing fixture, the problems of unstable clamping of the bag body with a long length and the accidental collision of the short bag body are solved, and effective clamping and operation of bag bodies with different lengths are achieved. .
Patent Information
- Application Number
- CN202421214534.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The existing bag crushing fixtures have poor clamping stability when dealing with long bag bodies, which cannot be effectively clamped, and are prone to accidentally touch other bag bodies when short bag bodies.
By installing detachable auxiliary shafts at both ends of the connecting shaft, the length of the clamping bag structure is extended to adapt to the long bag body, and the auxiliary shaft is removed when the short bag body is short to avoid accidental collision. The threaded connection and plug-in connection are used to facilitate Operation and positioning.
The stable clamping of bag bodies of different lengths is achieved, the problems of long bag bodies falling off and short bag bodies accidentally touching are avoided, and the scope of application of the equipment is expanded.
Smart Images
Figure CN222361173U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamps, in particular to a bag crushing and grabbing clamp. Background Art
[0002] At present, some products packaged in bags need to pour the materials in the bags into a mixing container or a conveyor during use. The current method is to manually cut the bag with a knife and then pour it out. Different material products may generate dust or toxic gas when pouring, which may cause serious harm to the operator's body.
[0003] At present, there are clamps specially used for grabbing bags. The two rotating rods drive the claws on the rotating rods to move relative to each other to grab the bag, and then place it in another specific position. The bag is automatically cut by a pre-set tool to make the material in the bag fall out, which reduces the labor intensity of personnel and avoids dust generated when the material is dumped to affect personnel health. However, on this type of equipment, the length of the rotating rod is fixed, and the number of claws equidistantly arranged on the rotating rod is also certain. If the claws on the rotating rod of a specific length are used to clamp the middle part of some long bags, the two ends of the bag will fall under the gravity of the material in the bag, resulting in poor stability when clamping the bag. It is not suitable for clamping some long bags. For this reason, we propose a bag crushing and grabbing clamp to solve the above problems. Utility Model Content
[0004] The embodiment of the utility model provides a bag crushing and grabbing clamp to solve the above-mentioned technical problems.
[0005] The embodiment of the utility model adopts the following technical scheme: it includes an elastic mounting part for connecting with an external mechanical arm, a vibration base connected to the elastic mounting part, and a fixed base connected to the vibration base, two groups of connecting shafts are rotatably connected below the fixed base, and a plurality of first-position clamping claws are equidistantly arranged axially on the two groups of connecting shafts, and auxiliary shafts are detachably connected at both ends of the connecting shafts, the auxiliary shafts are coaxially arranged with the connecting shafts, and second-position clamping claws are arranged on the auxiliary shafts.
[0006] Furthermore, the detachable connection method is a threaded connection, and one end of the connecting shaft is threadedly connected to one end of the auxiliary shaft.
[0007] Furthermore, the detachable connection method is plug-in, the end of the connecting shaft is provided with a receiving groove for inserting the auxiliary shaft, and the auxiliary shaft is provided with a fixing hole, and the connecting shaft is threadedly connected with a positioning pin corresponding to the fixing hole.
[0008] Furthermore, the longitudinal cross-section of the accommodating groove is polygonal, and the longitudinal cross-section of the end of the auxiliary shaft corresponds to the longitudinal cross-section of the accommodating groove.
[0009] Furthermore, the first position clamping claw and the second position clamping claw both include a blade portion and a planar fitting portion disposed opposite to the blade portion, a pressing plate is disposed below the fixed base, and the planar fitting portion faces the lower surface of the pressing plate.
[0010] Furthermore, a telescopic member is provided on the fixed base, and a movable end of the telescopic member is connected to the upper end surface of the pressing plate.
[0011] At least one of the above technical solutions adopted in the embodiment of the utility model can achieve the following beneficial effects:
[0012] In the utility model, auxiliary shafts are added to both ends of the connecting shaft to extend the length of the entire bag clamping structure, so that it is suitable for clamping some bags with longer lengths. When the bag is shorter, the auxiliary shafts can be removed to avoid accidentally hitting the side bags when clamping the stacked bags. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0014] Figure 1 It is a schematic diagram of the prior art structure of the utility model;
[0015] Figure 2 It is an isometric structural schematic diagram of the utility model;
[0016] Figure 3 This is a schematic diagram of the connection structure of the connecting shaft and the auxiliary shaft of the utility model;
[0017] Figure 4 This is a schematic structural diagram of the first embodiment of the utility model;
[0018] Figure 5 This is a schematic structural diagram of the second embodiment of the utility model;
[0019] Figure 6 This is a schematic diagram of the three-dimensional structure of the clamping claw in the first position of the utility model;
[0020] Figure 7 It is a schematic diagram of the local structure of the utility model.
[0021] Reference numerals:
[0022] 1. Elastic mounting portion; 11. Vibration base; 12. Fixed base; 13. Cylinder; 14. Swing rod; 15. Vibration device; 2. Connecting shaft; 21. First position clamping claw; 3. Auxiliary shaft; 31. Second position clamping claw; 4. Accommodating groove; 41. Fixing hole; 42. Positioning pin; 5. Blade portion; 6. Plane fitting portion; 7. Pressing plate; 8. Telescopic member. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
[0025] The utility model embodiment provides a bag crushing and grabbing clamp, referring to Figure 1, is a schematic diagram of the prior art structure of the utility model, comprising an elastic mounting portion 1, a vibration base 11 connected to the elastic mounting portion 1, and a fixed base 12 connected to the vibration base 11, and a vibration device 15 is provided on the vibration base 11, and two sets of connecting shafts 2 are rotatably connected below the fixed base 12, and a plurality of first position clamping claws 21 are equidistantly arranged in the axial direction of the two sets of connecting shafts 2. First, the elastic mounting portion 1 is connected to an external mechanical arm, and the vibration base 11 and the fixed base 12 are driven to change their positions under the action of the mechanical arm, so as to realize that after the bag body is clamped, the bag body is moved to the stirring position. After the bag is placed above the container or conveyor belt, a knife pre-installed below is used to cut the bottom of the bag, so that the material at the bottom of the bag is spilled, and the material is scooped under the action of the vibration device 15, so that the material in the bag is spilled more thoroughly, replacing manual handling. At the same time, the fixed base 12 of the robot arm moves downward and presses on the bag body to clamp the bag body. The spring and other components on the elastic mounting part 1 are used to buffer the impact on the robot arm. Two sets of relatively arranged cylinders 13 are also provided on the fixed base 12. The output end of the cylinder 13 is hinged with a swing rod 14, and the other end of the swing rod 14 is fixedly sleeved on the connecting shaft 2. When the cylinder 13 When the output end performs the stretching movement, the swing rod 14 is driven to rotate at the hinge point, so that the connecting shaft 2 drives the first position clamping claw 21 to rotate. Since the two groups of cylinders 13 drive the two groups of connecting shafts 2 respectively, when the output ends of the two groups of cylinders 13 perform the telescopic movement, the first position clamping claws 21 corresponding to the two groups of connecting shafts 2 will be made to perform relative or opposite movements. When the two groups of first position clamping claws 21 follow the rotation of the connecting shaft 2 and move downward, they pierce and penetrate into the bag body. When the two groups of first position clamping claws 21 follow the rotation of the connecting shaft 2 and move upward, they drive the bag body to move upward, and there is a fixed base 12 below. The pressure plate 7 conflicts with the pressure plate 7, thereby clamping the bag body. The above is the working principle of the prior art of the utility model. The technical problem to be solved by the utility model is that when clamping some bags with longer lengths, the connecting shaft 2 drives the first position clamping claw 21 to only clamp the middle part of the bag body, and the two ends of the bag body will fall due to the gravity of the bag material itself, which may cause the bag body to fall off the clamping claw. If the length of the connecting shaft 2 is set to be longer, when clamping some bags with shorter lengths, the clamping claws at both ends of the connecting shaft 2 may touch other bags on both sides of the clamped bag body, which is inconvenient to use.
[0026] Based on the above problems, the main improvement of the utility model is that auxiliary shafts 3 are detachably connected to both ends of the connecting shaft 2, the auxiliary shaft 3 is coaxially arranged with the connecting shaft 2, and a second position clamping claw 31 is provided on the auxiliary shaft 3. The second position clamping claw 31 has the same specifications as the first position clamping claw 21. When it is necessary to clamp a bag with a longer length, the auxiliary shaft 3 is installed on the connecting shaft 2, otherwise, the auxiliary shaft 3 is removed, so as to adapt to the clamping of bags of different lengths and have a wider range of applications.
[0027] Ginseng Figure 4 As shown, it is a structural schematic diagram of the first embodiment of the utility model. The detachable connection method is a threaded connection, in which one end of the connecting shaft 2 is threadedly connected to one end of the auxiliary shaft 3. This connection method is relatively simple and convenient, and is easier to operate.
[0028] Ginseng Figure 5 As shown, the structural schematic diagram of the second embodiment of the utility model, the detachable connection method is plug-in, the end of the connecting shaft 2 is provided with a receiving groove 4 for the auxiliary shaft 3 to be inserted, and the auxiliary shaft 3 is provided with a fixing hole 41, and the connecting shaft 2 is threadedly connected with a positioning pin 42 corresponding to the fixing hole 41. After the end of the auxiliary shaft 3 is inserted into the end of the connecting shaft 2, the positioning pin 42 is rotated to enter the fixing hole 41, so as to realize the connection and fixing of the connecting shaft 2 and the auxiliary shaft 3. When installing the auxiliary shaft 3, the second The second position clamping claw 31 and the first position clamping claw 21 are aligned with each other. Compared with the first embodiment, although the threaded connection is convenient and quick, it takes a certain amount of effort to align the second position clamping claw 31 and the first position clamping claw 21, and the alignment accuracy is not high, and there may be certain errors. Through the second embodiment, since the positions of the fixing hole 41 and the positioning pin 42 must be relative to each other, the positioning pin 42 can enter the fixing hole 41, which makes it easy to determine the position of the second position clamping claw 31.
[0029] Preferably, the longitudinal cross-section of the accommodating groove 4 is a polygon, and the longitudinal cross-section of the end of the auxiliary shaft 3 corresponds to the longitudinal cross-section of the accommodating groove 4. When the end of the auxiliary shaft 3 is inserted into the accommodating groove 4, the auxiliary shaft 3 will not rotate freely in the accommodating groove 4, thereby facilitating the precise insertion of the positioning pin 42 into the fixing hole 41.
[0030] Preferably, the first position clamping claw 21 and the second position clamping claw 31 both include a blade portion 5 and a planar fitting portion 6 arranged opposite to the blade portion 5. When the first position clamping claw 21 and the second position clamping claw 31 move in opposite directions, the blade portion 5 pierces the bag body, and the damaged surface of the bag to the blade portion 5 is linear, which can avoid the material from spilling out of the bag body due to excessive gap after clamping. When the first position clamping claw 21 and the second position clamping claw 31 move relative to each other, the planar fitting portion 6 fits with the bottom of the pressing plate 7 to increase the contact area with the pressing plate 7, thereby clamping the bag under the pressing plate 7. When the robotic arm drives the bag body to move to the top of the conveyor belt or the mixing container to cut the bag body, the clamping effect on the bag body is improved.
[0031] Preferably, a telescopic member 8 is provided on the fixed base 12. The telescopic member 8 can be a mechanism such as a telescopic rod that can perform linear reciprocating motion. The movable end of the telescopic member 8 is connected to the upper end surface of the pressure plate 7. After the bag is cut and the material leaks out, the bag hooked on the first position clamping claw 21 or the second position clamping claw 31 is pushed downward by the downward movement of the telescopic member 8, so that the bag falls more completely.
[0032] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.
Claims
1. A bag crushing and grabbing fixture, comprising an elastic mounting portion (1) for connecting to an external mechanical arm, a vibration base (11) connected to the elastic mounting portion (1), and a fixed base (12) connected to the vibration base (11), characterized in that: Two groups of connecting shafts (2) are rotatably connected below the fixed base (12), and a plurality of first-position clamping claws (21) are equidistantly provided axially on the two groups of connecting shafts (2), and auxiliary shafts (3) are detachably connected at both ends of the connecting shafts (2), the auxiliary shafts (3) are coaxially arranged with the connecting shafts (2), and second-position clamping claws (31) are provided on the auxiliary shafts (3).
2. The bag crushing and grabbing clamp according to claim 1, characterized in that: The detachable connection method is a threaded connection, where one end of the connecting shaft (2) is threadedly connected to one end of the auxiliary shaft (3).
3. The bag crushing and grabbing clamp according to claim 1, characterized in that: The detachable connection method is plug-in connection, the end of the connecting shaft (2) is provided with a receiving groove (4) for inserting the auxiliary shaft (3), and the auxiliary shaft (3) is provided with a fixing hole (41), and the connecting shaft (2) is threadedly connected with a positioning pin (42) corresponding to the fixing hole (41).
4. The bag crushing and grabbing clamp according to claim 3, characterized in that: The longitudinal cross-section of the accommodating groove (4) is polygonal, and the longitudinal cross-section of the end of the auxiliary shaft (3) corresponds to the longitudinal cross-section of the accommodating groove (4).
5. The bag crushing and grabbing clamp according to claim 1, characterized in that: The first position clamping claw (21) and the second position clamping claw (31) both comprise a blade portion (5) and a planar fitting portion (6) disposed opposite to the blade portion (5); a pressing plate (7) is disposed below the fixed base (12); and the planar fitting portion (6) faces the lower surface of the pressing plate (7).
6. The bag crushing and grabbing clamp according to claim 1, characterized in that: A telescopic member (8) is provided on the fixed base (12), and a movable end of the telescopic member (8) is connected to the upper end surface of the pressing plate (7).