Dustproof lower bag opening device

Abstract

The utility model belongs to the technical field of packaging equipment, and provides a dustproof lower bag opening device which comprises a support, a sliding cavity is upwards formed in the bottom of the support, a guide rod is horizontally arranged in the sliding cavity, two sets of fixing blocks are arranged on the guide rod, and the fixing blocks are in sliding connection with the guide rod through closed sliding parts. The sliding control assembly is arranged on the support, and the sliding control assembly is used for driving the two sets of fixing blocks to slide in the opposite direction or the reverse direction; the two sets of fixing blocks are fixedly connected with the multiple suction cups through the left support assembly and the right support assembly respectively, and the multiple suction cups are located above the support. The service life of the lower bag opening device can be prolonged, and the use efficiency of equipment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging equipment, in particular to a dustproof bottom bag opening device. Background Art

[0002] In the packaging industry, the lower bag opening device generally adopts a guide rail and a slider mechanism. However, when the existing structure is used to fill dusty materials, the floating powder materials can be adsorbed into the guide rail groove and are difficult to clean. The dusty materials adsorbed into the guide rail groove will enter the ball of the slider during use, increasing the resistance of the equipment during operation. If there are highly corrosive materials, the guide rail or ball will be corroded, causing the guide rail slider mechanism to fail, resulting in the lower bag opening being unable to continue to move normally and can only be used after replacing a new slider. The existing lower bag opening device has a short working life in a dusty environment, the frequency of parts replacement is high, and the equipment utilization efficiency is low. Utility Model Content

[0003] The utility model aims to provide a dustproof lower bag opening device to solve the above problems, thereby extending the service life of the lower bag opening device and improving the use efficiency of the equipment.

[0004] To achieve the above purpose, the utility model provides the following solution: a dustproof bottom bag opening device, comprising:

[0005] A bracket, wherein a sliding cavity is opened upward from the bottom of the bracket, a guide rod is horizontally arranged in the sliding cavity, two sets of fixing blocks are arranged on the guide rod, and the fixing blocks are slidably connected to the guide rod through a closed sliding member;

[0006] A sliding control component, which is arranged on the bracket and is used to drive the two groups of fixed blocks to slide towards or in opposite directions;

[0007] A plurality of suction cups, the two groups of fixing blocks are fixedly connected to the plurality of suction cups through a left bracket assembly and a right bracket assembly respectively, and the plurality of suction cups are located above the bracket.

[0008] Preferably, the closed sliding member includes a linear bearing fixedly connected in the fixed block, the fixed block is slidably connected to the guide rod through the linear bearing, retaining rings are respectively arranged between the two ends of the linear bearing and the fixed block, and oil seals are respectively fixedly connected on both sides of the fixed block, and the two groups of oil seals are respectively located on the side of the retaining ring away from the linear bearing, and the oil seal and the retaining ring are respectively slidably mounted on the guide rod.

[0009] Preferably, three groups of support plates are fixedly connected in the sliding cavity, a gap is provided between two adjacent support plates, the guide rod is fixedly penetrated through the three groups of support plates, and the two groups of fixed blocks are respectively located in the two groups of gaps.

[0010] Preferably, the cross section of the guide rod is circular.

[0011] Preferably, the left bracket assembly includes a left bracket seat fixedly connected to one of the fixed blocks, a left suction cup bracket is vertically fixedly connected to the left bracket seat, and a plurality of suction cups are fixedly connected to the top of the left suction cup bracket.

[0012] Preferably, the right bracket assembly includes a right bracket seat fixedly connected to another of the fixed blocks, a right suction cup bracket is vertically fixedly connected to the right bracket seat, and a plurality of the suction cups are fixedly connected to the top of the right suction cup bracket.

[0013] Preferably, the top of the left suction cup bracket and the top of the right suction cup bracket are respectively fixedly connected with a cross frame, the two groups of the cross frames are arranged in parallel, and the length directions of the two groups of the cross frames are perpendicular to the axial direction of the guide rod, and a plurality of the suction cups are respectively fixedly connected to the two opposite side walls of the two groups of the cross frames.

[0014] Preferably, the sliding control assembly includes a pendulum block, the middle part of which is hinged on the bracket, the plane in which the pendulum block swings is parallel to the plane in which the fixed block slides, and the two ends of the pendulum block are respectively hinged with one end of a first pull rod and one end of a second pull rod, the other end of the first pull rod is hinged to the right bracket seat, and the other end of the second pull rod is hinged to the left bracket seat, and one end of a third pull rod is also hinged on the pendulum block, and the third pull rod is arranged close to the first pull rod or the second pull rod, and the other end of the third pull rod is connected to an external push-pull device.

[0015] Compared with the prior art, the utility model has the following advantages and technical effects: the sliding cavity is set at the bottom of the bracket and opens downward, which can reduce the dust material above entering the fixed block and the guide rod; the main function of the closed sliding part is to prevent the material dust from entering the fixed block. Overall, the utility model can reduce the probability of material dust contacting the guide rail, and at the same time greatly reduce the probability of dust on the guide rod entering the sliding pair between the fixed block and the guide rod during the sliding process of the fixed block, avoiding direct contact between dust and related structural parts, reducing and extending the service life of the lower bag opening device, and improving the efficiency of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a front sectional view of the lower bag opening device of the utility model;

[0018] Figure 2 This is a bottom view of the lower bag opening device of the utility model;

[0019] Figure 3 It is a schematic diagram of the lower bag opening device of the utility model;

[0020] Among them, 1. bracket; 2. guide rod; 3. linear bearing; 4. oil seal; 5. fixing block; 6. right bracket seat; 7. left suction cup bracket; 8. right suction cup bracket; 9. left bracket seat; 10. first pull rod; 11. swing block; 12. support plate; 13. retaining ring; 14. suction cup; 15. second pull rod; 16. third pull rod; 17. sliding cavity; 18. cross frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Reference Figure 1-Figure 3 The utility model provides a dustproof bottom opening bag device, comprising:

[0024] The bracket 1 has a sliding cavity 17 formed upward from the bottom of the bracket 1, a guide rod 2 is horizontally arranged in the sliding cavity 17, two sets of fixing blocks 5 are arranged on the guide rod 2, and the fixing blocks 5 are slidably connected to the guide rod 2 through a closed sliding member;

[0025] A sliding control component is arranged on the bracket 1 and is used to drive the two sets of fixed blocks 5 to slide towards or in opposite directions;

[0026] A plurality of suction cups 14 , two sets of fixing blocks 5 are fixedly connected to the plurality of suction cups 14 through a left bracket assembly and a right bracket assembly respectively, and the plurality of suction cups 14 are located above the bracket 1 .

[0027] The sliding cavity 17 is arranged at the bottom of the bracket 1 and opens downwards, which can reduce the dust material above from entering the fixed block 5 and the guide rod 2; the main function of the guide rod 2 is to limit the sliding track of the fixed block 5; the main function of the closed sliding part is to prevent the material dust from entering the fixed block 5; the main function of the sliding control component is to control the two fixed blocks 5 to move towards or in the opposite direction; the main function of the suction cup 14 is to use negative pressure to adsorb on the packaging bag, and open the packaging bag when the two fixed blocks 5 are away from each other. On the whole, the utility model can reduce the probability of material dust contacting the guide rail, and at the same time greatly reduce the probability of dust on the guide rod entering the sliding pair between the fixed block and the guide rod during the sliding process of the fixed block, avoid direct contact between dust and related structural parts, reduce and extend the service life of the lower bag opening device, and improve the efficiency of equipment use.

[0028] A further optimized solution is that the closed sliding member includes a linear bearing 3 fixedly connected in the fixed block 5, the fixed block 5 is slidably connected to the guide rod 2 through the linear bearing 3, and retaining rings 13 are respectively arranged between the two ends of the linear bearing 3 and the fixed block 5, and oil seals 4 are respectively fixedly connected on both sides of the fixed block 5, and two groups of oil seals 4 are respectively located on the side of the retaining ring 13 away from the linear bearing 3, and the oil seal 4 and the retaining ring 13 are respectively slidably sleeved on the guide rod 2.

[0029] like Figure 1 As shown, the main function of the retaining ring 13 is to limit the linear bearing 3 to prevent relative displacement between the linear bearing 3 and the fixed block 5. By making the inner wall of the oil seal 4 fit the surface of the guide rod 2, and the outer wall and side wall of the oil seal 4 fit the fixed block 5, the probability of dust attached to the guide rod 2 entering the contact surface between the linear bearing 3 and the guide rod 2 can be greatly reduced during the sliding of the fixed block 5 along the guide rod 2, thereby effectively avoiding frequent replacement of the fixed block 5 and improving the service life of the device.

[0030] According to a further optimized solution, three groups of support plates 12 are fixedly connected in the sliding cavity 17, a gap is provided between two adjacent support plates 12, the guide rod 2 is fixedly penetrated through the three groups of support plates 12, and two groups of fixed blocks 5 are respectively located in the two groups of gaps.

[0031] like Figure 1-Figure 3 As shown, three groups of support plates 12 are parallel and fixedly connected to two groups of guide rods 2, and the fixed block 5 is slidably connected to the two groups of guide rods 2, which can improve the stability of the sliding process of the fixed block 5. The three groups of support plates 12 are inserted into the sliding cavity 17, and the support plates 12 are fixedly connected to the bracket 1 by bolts, thereby fixing the position of the guide rod 2.

[0032] According to a further optimized solution, the cross section of the guide rod 2 is circular.

[0033] The curved surface structure of the circular guide rod 2 can reduce the adhesion of dust.

[0034] According to a further optimized solution, the left bracket assembly includes a left bracket seat 9 fixedly connected to a fixed block 5, a left suction cup bracket 7 is vertically fixedly connected to the left bracket seat 9, and a plurality of suction cups 14 are fixedly connected to the top of the left suction cup bracket 7.

[0035] According to a further optimized solution, the right bracket assembly includes a right bracket seat 6 fixedly connected to another fixed block 5, a right suction cup bracket 8 is vertically fixedly connected to the right bracket seat 6, and a plurality of suction cups 14 are fixedly connected to the top of the right suction cup bracket 8.

[0036] According to a further optimization scheme, the top of the left suction cup bracket 7 and the top of the right suction cup bracket 8 are respectively fixedly connected with a cross frame 18, the two groups of cross frames 18 are arranged in parallel, and the length directions of the two groups of cross frames 18 are perpendicular to the axial direction of the guide rod 2, and a plurality of suction cups 14 are respectively fixedly connected to the two opposite side walls of the two groups of cross frames 18.

[0037] like Figure 3 As shown, the two sets of cross frames 18 are perpendicular to the axial direction of the guide rod 2, and are also perpendicular to the left suction cup bracket 7 and the right suction cup bracket 8. Two sets of suction cups 14 are fixedly connected at both ends of the cross frame 18. The suction cups 14 are connected to an external vacuum generating device. When the suction cups 14 are driven by the two fixed blocks 5 to contact the packaging bag, the staff can control the vacuum generating device to make the suction cups 14 adsorb on the surface of the packaging bag. When the two fixed blocks 5 move away from each other, the suction cups 14 on the two sets of cross frames 18 will be driven away from each other, so that the packaging bag is opened by the suction cups 14.

[0038] A further optimized solution is that the sliding control component includes a pendulum block 11, the middle part of the pendulum block 11 is hinged on the bracket 1, the plane in which the pendulum block 11 swings is parallel to the plane in which the fixed block 5 slides, and the two ends of the pendulum block 11 are respectively hinged with one end of the first pull rod 10 and one end of the second pull rod 15, the other end of the first pull rod 10 is hinged to the right bracket seat 6, and the other end of the second pull rod 15 is hinged to the left bracket seat 9. One end of the third pull rod 16 is also hinged on the pendulum block 11, and the third pull rod 16 is arranged close to the first pull rod 10 or the second pull rod 15, and the other end of the third pull rod 16 is connected to an external push-pull device.

[0039] External push and pull equipment can be pneumatic cylinder or hydraulic cylinder. Figure 1 and Figure 3As shown, when the two horizontal frames 18 need to be moved away from each other, the staff can control the external push-pull device to push the third pull rod 16 in the direction close to the bracket 1. Since the hinge axis between the third pull rod 16 and the swing block 11 is offset from the hinge axis between the swing block 11 and the bracket 1, the swing block 11 will rotate clockwise, and the right bracket seat 6 will be pulled to the right through the first pull rod 10, and the left bracket seat 9 will be pushed to the left through the second pull rod 15, so as to achieve the effect of moving the two horizontal frames 18 away from each other. When the two horizontal frames 18 need to be moved closer to each other, the third pull rod 16 can be pulled away from the bracket 1 through the external push-pull device.

[0040] The working process of this embodiment is as follows: when the suction cups 14 are in a fully open state, that is, when the suction cups 14 on the two horizontal frames 18 are in a state of being away from each other, the packaging bag is sent between the suction cups 14 through the feeding device in the above sequence. With the operation of the external push-pull device, the swing block 11 is pulled to the right through the third pull rod 16, so that the swing block 11 rotates counterclockwise around the hinge axis with the bracket 1, and the left bracket seat 9 is pulled to the right through the second pull rod 15 and pushed away from the right bracket seat 6 to the left. The fixed block 5 connected to the left bracket seat 9 and the right bracket seat 6 moves along the direction of the guide rod 2 through the linear bearing 3, so that the suction cups 14 on the two horizontal frames 18 are close to each other and contact with the packaging bag. The suction cups 14 generate negative pressure through the vacuum generating device and are adsorbed on the packaging bag. Then, the external push-pull device pushes the third pull rod 16 to make the swing block 11 rotate clockwise, and each component is reset. The suction cups 14 on both sides are away from each other, and the packaging bag is opened, completing the lower opening action of the packaging bag.

[0041] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. Dust-proof bottom bag opening device, characterized in that: include: A bracket (1), wherein a sliding cavity (17) is opened upward at the bottom of the bracket (1), a guide rod (2) is horizontally arranged in the sliding cavity (17), two groups of fixing blocks (5) are arranged on the guide rod (2), and the fixing blocks (5) are slidably connected to the guide rod (2) via a closed sliding member; A sliding control component, the sliding control component is arranged on the bracket (1), and the sliding control component is used to drive the two groups of fixed blocks (5) to slide towards or in opposite directions; A plurality of suction cups (14), the two groups of fixing blocks (5) are fixedly connected to the plurality of suction cups (14) through a left bracket assembly and a right bracket assembly respectively, and the plurality of suction cups (14) are located above the bracket (1).

2. The dustproof bottom bag opening device according to claim 1, characterized in that: The sealed sliding member comprises a linear bearing (3) fixedly connected in the fixed block (5); the fixed block (5) is slidably connected to the guide rod (2) via the linear bearing (3); retaining rings (13) are respectively arranged between the two ends of the linear bearing (3) and the fixed block (5); oil seals (4) are respectively fixedly connected on both sides of the fixed block (5); two groups of the oil seals (4) are respectively located on the side of the retaining ring (13) away from the linear bearing (3); and the oil seal (4) and the retaining ring (13) are respectively slidably sleeved on the guide rod (2).

3. The dustproof bottom bag opening device according to claim 1, characterized in that: Three groups of support plates (12) are fixedly connected in the sliding cavity (17), and a gap is provided between two adjacent support plates (12). The guide rod (2) is fixedly penetrated on the three groups of support plates (12), and the two groups of fixed blocks (5) are respectively located in the two groups of gaps.

4. The dustproof bottom opening bag device according to claim 1, characterized in that: The cross section of the guide rod (2) is circular.

5. The dustproof bottom bag opening device according to claim 1, characterized in that: The left bracket assembly comprises a left bracket seat (9) fixedly connected to a fixing block (5), a left suction cup bracket (7) being vertically fixedly connected to the left bracket seat (9), and a plurality of suction cups (14) being fixedly connected to the top of the left suction cup bracket (7).

6. The dustproof bottom bag opening device according to claim 5, characterized in that: The right bracket assembly comprises a right bracket seat (6) fixedly connected to another fixed block (5), a right suction cup bracket (8) being vertically fixedly connected to the right bracket seat (6), and a plurality of suction cups (14) being fixedly connected to the top of the right suction cup bracket (8).

7. The dustproof bottom bag opening device according to claim 6, characterized in that: The top of the left suction cup bracket (7) and the top of the right suction cup bracket (8) are respectively fixedly connected with a cross frame (18), the two groups of the cross frames (18) are arranged in parallel, and the length directions of the two groups of the cross frames (18) are perpendicular to the axial direction of the guide rod (2), and the plurality of suction cups (14) are respectively fixedly connected to two opposite side walls of the two groups of the cross frames (18).

8. The dustproof bottom bag opening device according to claim 6, characterized in that: The sliding control component includes a pendulum block (11), the middle part of which is hinged on the bracket (1), the plane in which the pendulum block (11) swings is parallel to the plane in which the fixed block (5) slides, and the two ends of the pendulum block (11) are respectively hinged with one end of a first pull rod (10) and one end of a second pull rod (15), the other end of the first pull rod (10) is hinged to the right bracket seat (6), and the other end of the second pull rod (15) is hinged to the left bracket seat (9), and one end of a third pull rod (16) is also hinged on the pendulum block (11), and the third pull rod (16) is arranged close to the first pull rod (10) or the second pull rod (15), and the other end of the third pull rod (16) is connected to an external push-pull device.

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