Filling machine bag opening bag fixing mechanism for pet feed filling

Abstract

The utility model discloses a bag mouth bag fixing mechanism of a filling machine for filling pet feed, which comprises a discharge pipe, and further comprises a blanking pipe which is in threaded connection with the bottom end of the discharge pipe and consists of a reducing section and an expanding section; the bag fixing mechanism is arranged on the discharging pipe and used for being matched with the discharging pipe to clamp and fix a bag opening. The two clamping blocks wrap and fit the outer wall of the reducing section in the circumferential direction of the outer wall of the reducing section, through wrapping and fitting, the joint of a filling bag and the discharging pipe can be sealed, dust is prevented from being diffused, and through arrangement of the auxiliary clamping blocks, the contact area of the filling bag can be increased when the filling bag is clamped.

Description

TECHNICAL FIELD

[0001] The utility model relates to filling bag mouth fixed technical field, especially in pet feed filling is with filling machine bag mouth bag fixing mechanism. BACKGROUND

[0002] In the pet feed production industry, the filling machine is one of the key equipment on the automatic production line, which is responsible for accurately filling the pet feed into the prefabricated packaging bag. At present, the mainstream filling machine on the market in the filling process,

[0003] In the prior art, the fixing method of the bag mouth is mostly to use a clamping mechanism or a suction cup adsorption mechanism to ensure the stability of the packaging bag during filling. The clamping mechanism clamps the edge of the bag mouth through mechanical clamps to prevent the bag from slipping or moving during filling. However, the disadvantage of this method is that too large clamping force may cause the bag mouth to deform or even break, affecting the appearance and sealing of the package; too small clamping force cannot effectively fix the bag mouth, resulting in inaccurate filling. The suction cup adsorption mechanism uses the negative pressure generated by the suction cup to adsorb the bag mouth and keep the bag stable. However, the suction cup adsorption has certain requirements on the material of the bag mouth. For some packaging bags with thick material or rough surface, the adsorption effect may not be good, and the suction cup is easy to wear out after long-term use, affecting the adsorption force. In summary, the bag mouth fixing mechanism in the prior art has deficiencies in stability, adaptability and durability, and cannot realize the sealing and dust prevention of the connection between the bag mouth and the feeding pipe. Therefore, there is an urgent need for a more reliable, adaptable and low-maintenance bag mouth fixing mechanism. SUMMARY

[0004] The purpose of this invention is to overcome the limitations of existing technologies where bag openings are typically secured using clamping or suction cup mechanisms to ensure stability during filling. Clamping mechanisms use mechanical grippers to tighten the bag opening edge, preventing slippage or movement during filling. However, this method has drawbacks: excessive clamping force may deform or even damage the bag opening, affecting the packaging's appearance and seal; insufficient clamping force may fail to effectively secure the bag opening, leading to inaccurate filling. Suction cup mechanisms, on the other hand, utilize the negative pressure generated by suction cups to adhere to the bag opening, maintaining its stability. However, suction cup adsorption has certain requirements on the bag opening material. For some packaging bags with thicker materials or rough surfaces, the adsorption effect may be poor, and the suction cup is prone to wear after long-term use, affecting the adsorption force. In summary, the existing bag opening fixing mechanism has shortcomings in terms of stability, adaptability, and durability, and cannot achieve a sealed dustproof connection between the bag opening and the feeding tube. This paper provides a bag opening fixing mechanism for a pet food filling machine. Two clamping blocks wrap around and adhere to the outer wall of the reduced diameter section circumferentially. Through wrapping and adhering, the connection between the filling bag and the feeding tube can be sealed to prevent dust from escaping and protect the environment. By setting the auxiliary clamping block, the contact area when clamping the filling bag can be increased. Furthermore, by setting the reduced diameter section and the expanded diameter section, as well as the V-shaped auxiliary clamping block, the frictional resistance after clamping can be increased, improving the stability of clamping and overcoming the problems that mechanical claws may cause bag opening deformation or even damage, or poor suction cup adsorption effect.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This utility model discloses a bag-fixing mechanism for a pet food filling machine, including a discharge pipe, and further comprising:

[0007] The feed pipe is threaded to the bottom of the discharge pipe. The feed pipe consists of a narrowing section and an expanding section, with the bottom of the narrowing section connected to the top of the expanding section. The high-speed flow through the narrowing section can accelerate the material flow and create a local negative pressure, which can adsorb the surrounding air or gas and inhibit dust diffusion. The flow rate is reduced by slowing down through the expanding section, and the dust settles more easily due to the reduced kinetic energy, thereby reducing dust pollution.

[0008] A bag-fixing mechanism is installed on the discharge pipe to work with the discharge pipe to clamp and fix the bag opening;

[0009] The bag fixing mechanism comprises a base fixed on the discharge pipe, two strip-shaped seats are welded on the two side walls of the base, a rotating shaft is rotatably connected between the two strip-shaped seats, a connecting frame is welded on the outer wall of the rotating shaft, one end of the connecting frame is provided with a circular hole matched with the rotating shaft, a clamping block is welded on the other end of the connecting frame, and the clamping block is in an arc-shaped structure and is matched with the outer wall of the reduced diameter section.

[0010] Preferably, the two clamping blocks are arranged to wrap and fit the outer wall of the reduced diameter section in the circumferential direction, and the connection between the filling bag and the discharge pipe can be sealed by wrapping and fitting, so as to prevent dust emission and protect the environment.

[0011] Preferably, the bag fixing mechanism further comprises an auxiliary clamping block which is detachably fixed on the lower surface of the clamping block, the auxiliary clamping block is in a V-shaped structure, and the auxiliary clamping block is fitted on the connection between the reduced diameter section and the expanded diameter section under the driving of the clamping block. It should be noted that the contact area during clamping of the filling bag can be improved by the auxiliary clamping block, and the clamping resistance and stability can be improved by the reduced diameter section and the expanded diameter section and the V-shaped auxiliary clamping block. Whether the auxiliary clamping block is used depends on the requirement of the bag opening clamping force of the filling chamber. When the density of the feed to be filled is large or the filling amount is large, a large clamping force of the bag opening is required, and the auxiliary clamping block can be assembled. The auxiliary clamping block and the clamping block are used in cooperation to ensure the strength of the bag opening clamping and fixing.

[0012] Preferably, the two auxiliary clamping blocks are arranged on the two clamping blocks, and the two auxiliary clamping blocks form a closed ring structure when they are fitted on each other and are arranged outside the discharge pipe. The pencil ring structure formed by the two auxiliary clamping blocks cooperates with the discharge pipe to clamp and fix the filling bag opening, so as to seal the connection between the filling bag opening and the discharge pipe and prevent dust and air leakage.

[0013] As preferred, the bag fixing mechanism further comprises auxiliary sealing blocks which are detachably fixed on the outer walls of the two ends of the clamping blocks, the fixing mode of the auxiliary sealing blocks is clamping or bolt fixing, the two auxiliary sealing blocks on the same side of the two clamping blocks form a group, and the auxiliary sealing blocks are provided in two groups. Specifically, the auxiliary sealing blocks are provided, and the use scene is that when the filling bag is sleeved on the discharge pipe, when the inner diameter of the filling bag is greater than the outer diameter of the discharge pipe, at this time, the excess part of the bag opening can be clamped and fixed by the two groups of auxiliary sealing blocks, so that even when the bag opening is much larger than the maximum outer diameter of the discharge pipe, the excess part of the bag opening can be clamped and sealed by the two groups of auxiliary sealing blocks, so that the connection between the bag opening and the discharge pipe can be sealed to prevent dust and air leakage.

[0014] As preferred, the inner walls of the clamping blocks and the auxiliary clamping blocks are provided with anti-skid rubber pads, and the outer wall of the discharge pipe is also provided with an anti-skid rubber pad. Through the setting of the anti-skid rubber pad, the friction force of the clamping blocks and the auxiliary clamping blocks used in cooperation with the discharge pipe is improved, and the bag fixing effect is further improved.

[0015] As preferred, the base is rotationally connected with a hydraulic telescopic rod, and the movable end of the hydraulic telescopic rod is rotationally connected with the connecting frame.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The bag opening fixing mechanism of the filling machine for pet feed filling, the clamping blocks are provided in two, the two clamping blocks wrap and fit along the circumferential direction of the outer wall of the reduced diameter section, the connection between the filling bag and the discharge pipe can be sealed through wrapping and fitting to prevent dust emission, protect the environment, the contact area during clamping of the filling bag can be improved through the setting of the auxiliary clamping blocks, and the friction resistance after clamping can be improved through the setting of the reduced diameter section and the expanded diameter section and the V-shaped auxiliary clamping blocks, the stability of clamping is improved, the problems that the bag opening may be deformed, even damaged or the suction effect of the suction cup may be poor due to the mechanical clamping jaw are overcome.

[0018] Further, the two auxiliary sealing blocks on the same side of the two clamping blocks form a group, and the auxiliary sealing blocks are provided in two groups. The auxiliary sealing blocks are provided, when the filling bag is sleeved on the discharge pipe, when the inner diameter of the filling bag is greater than the outer diameter of the discharge pipe, at this time, the excess part of the bag opening can be clamped and fixed by the two groups of auxiliary sealing blocks, so that even when the bag opening is much larger than the maximum outer diameter of the discharge pipe, the excess part of the bag opening can be clamped and sealed by the two groups of auxiliary sealing blocks, so that the connection between the bag opening and the discharge pipe can be sealed to prevent dust and air leakage, and the stability of the fixing is further improved through the clamping of the auxiliary sealing blocks on the bag opening. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic view of the utility model;

[0020] Figure 2 It is the structure schematic view of the bag fixing mechanism in the utility model;

[0021] Figure 3 It is the structure schematic view of the auxiliary clamping block in the utility model;

[0022] Figure 4 It is the whole structure front view of the utility model Figure 1 .

[0023] Figure 5 It is the whole structure front view of the utility model Figure 2 .

[0024] Reference signs: 1, discharge pipe; 2, blanking pipe; 21, reduced diameter section; 22, expanded diameter section; 3, bag fixing mechanism; 31, base; 32, strip seat; 33, rotating shaft; 34, clamping block; 341, auxiliary clamping block; 342, auxiliary sealing block; 35, connecting frame; 351, circular hole; 4, hydraulic telescopic rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings Figure 1 - the drawings Figure 5The utility model discloses a pet feed filling is with filling machine bag mouth bag fixing mechanism, further illustrate the specific implementation of the utility model a pet feed filling is with filling machine bag mouth bag fixing mechanism, overcome prior art, bag mouth's fixed mode adopts clamping mechanism or sucking disc adsorption mechanism to ensure the stability of packing bag during filling, and clamping mechanism is through mechanical clamping jaw clamping bag mouth edge, prevents bag from falling or moving during filling process, however, the shortcoming of this mode is that clamping force is too big and can lead to bag mouth deformation, even breakage, influence package appearance and leakproofness, and clamping force is too small and can not effectively fix bag mouth, leads to filling inaccuracy, and sucking disc adsorption mechanism is the negative pressure adsorption bag mouth using sucking disc, keeps the stability of bag, but sucking disc adsorption has certain requirement to bag mouth material, and for some material thicker or surface not smooth packing bag, adsorption effect can be poor, and sucking disc is easy to wear for long time use, and the adsorption force is affected, in conclusion, the bag mouth bag fixing mechanism in prior art has the deficiency in stability, adaptability and durability, and can not realize the sealing dustproof of bag mouth and the connecting place of downcomer, provide a pet feed filling is with filling machine bag mouth bag fixing mechanism, two clamping blocks complete the outer wall of the reduced diameter section along its circumferential wrapping and fitting, through wrapping and fitting, can seal the connecting place of filling bag and downcomer, prevents dust emission, protects the environment, through the setting of auxiliary clamping block, can improve the contact area when clamping filling bag, and through the setting of reduced diameter section and expanding section, and the setting of V-shaped auxiliary clamping block, can improve the frictional resistance after clamping, improve the stability of clamping, overcome the problem that mechanical clamping jaw can lead to bag mouth deformation, even breakage or sucking disc adsorption effect can be poor.

[0026] The pet feed filling is with filling machine bag mouth bag fixing mechanism of the utility model is not limited to the following embodiment.

[0027] Embodiment 1:

[0028] A pet feed filling is with filling machine bag mouth bag fixing mechanism, including discharge pipe 1, still include:

[0029] Downcomer 2 is screw connection in the bottom end of discharge pipe 1, and downcomer 2 is composed of reduced diameter section 21 and expanding section 22, and the bottom end of reduced diameter section 21 is connected in the top end of expanding section 22 in conduction, wherein through the high-speed flow of reduced diameter section 21, the accelerated material flow can form local negative pressure venturi effect, can adsorb surrounding air or gas, suppress dust diffusion, through expanding section 22 deceleration, after reducing flow rate, dust is more easily settled due to kinetic energy reduction, thereby reducing dust pollution;

[0030] Bag fixing mechanism 3 is set on discharge pipe 1, is used for clamping and fixing bag mouth in cooperation with downcomer 2;

[0031] The bag fixing mechanism 3 comprises a base 31 fixedly sleeved on the discharge pipe 1, two strip-shaped seats 32 are welded on the two side walls of the base 31, a rotating shaft 33 is rotationally connected between the two strip-shaped seats 32, a connecting frame 35 is welded on the outer wall of the rotating shaft 33, one end of the connecting frame 35 is provided with a circular hole 351 matched with the rotating shaft 33, and a clamping block 34 is welded on the other end of the connecting frame 35. The clamping block 34 is in an arc-shaped structure and is matched with the outer wall of the reduced diameter section 21. By driving the rotating shaft 33 to rotate, the clamping block 34 can be brought into close contact with the outer wall of the reduced diameter section 21.

[0032] The clamping block 34 is provided with two clamping blocks 34, and the two clamping blocks 34 are wrapped and close to the outer wall of the reduced diameter section 21 along the circumference. By wrapping and close, the connection between the filling bag and the discharge pipe 2 can be sealed to prevent dust from being emitted and protect the environment.

[0033] The inner walls of the clamping block 34 and the auxiliary clamping block 341 are provided with anti-skid rubber pads, and the outer wall of the discharge pipe 2 is also provided with an anti-skid rubber pad. By arranging the anti-skid rubber pads, the friction force of the clamping block 34 and the auxiliary clamping block 341 in cooperation with the discharge pipe 2 is improved, and the bag fixing effect is further improved.

[0034] The base 31 is rotationally connected with a hydraulic telescopic rod 4, and the movable end of the hydraulic telescopic rod 4 is rotationally connected with the connecting frame 35.

[0035] Embodiment 2

[0036] The bag fixing mechanism 3 further comprises an auxiliary clamping block 341 which is detachably fixed to the lower surface of the clamping block 34. The auxiliary clamping block 341 is in a V-shaped structure, and is close to the connection between the reduced diameter section 21 and the expanded diameter section 22 under the driving of the clamping block 34. It should be noted that the contact area of the clamping block 34 can be improved by arranging the auxiliary clamping block 341, and the resistance and stability of the clamping block 34 can be improved by arranging the reduced diameter section 21 and the expanded diameter section 22 and the V-shaped auxiliary clamping block 341. Whether the auxiliary clamping block 341 is needed is determined by the requirement of the bag opening clamping force of the filling chamber. When the density of the feed to be filled is large or the filling amount is large, a large clamping force is required for the bag opening, and the auxiliary clamping block 341 can be assembled. The auxiliary clamping block 341 and the clamping block 34 are used in cooperation to ensure the strength of the bag opening clamping and fixing.

[0037] The two auxiliary clamping blocks 341 are arranged on the two clamping blocks 34 and can form a closed ring structure after abutting against each other and are arranged outside the discharging pipe 2, so that the chalk ring structure formed by the two auxiliary clamping blocks 341 cooperates with the discharging pipe 2 to clamp and fix the filling bag opening, the connection between the filling bag opening and the discharging pipe 2 can be sealed, and dust and air leakage can be prevented.

[0038] Embodiment 3

[0039] The bag sealing mechanism 3 further comprises auxiliary sealing blocks 342 which are detachably fixed on the outer walls of the two ends of the clamping blocks 34, the fixing mode of the auxiliary sealing blocks 342 is clamping or bolt fixing, the two auxiliary sealing blocks 342 on the same side of the two clamping blocks 34 form a group, and two groups of auxiliary sealing blocks 342 are arranged. Specifically, the auxiliary sealing blocks 342 are arranged for the following use scenario: when the filling bag opening is arranged on the discharging pipe 2, when the inner diameter of the filling bag opening is greater than the outer diameter of the discharging pipe 2, the excess part of the filling bag opening can be clamped and fixed by the two groups of auxiliary sealing blocks 342, so that even when the filling bag opening is much larger than the maximum outer diameter of the discharging pipe 2, the excess part of the bag opening can be clamped and sealed by the two groups of auxiliary sealing blocks 342, so that the connection between the filling bag opening and the discharging pipe 2 can be sealed, and dust and air leakage can be prevented.

[0040] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A bag fixing mechanism for a bag opening of a filling machine for filling pet food, comprising a discharge pipe (1), characterized in that, Also include: The blanking tube (2) is threadedly connected at the bottom end of the discharge pipe (1), the blanking tube (2) is composed of a reduced section (21) and an expanded section (22), and the bottom end of the reduced section (21) is connected to the top end of the expanded section (22); The bag fixing mechanism (3) is arranged on the discharge pipe (1) and cooperates with the blanking tube (2) to clamp and fix the bag opening. The base (31) is fixed on the discharge pipe (1), two strip seats (32) are welded on the two side walls of the base (31), a rotating shaft (33) is rotatably connected between the two strip seats (32), a connecting frame (35) is welded on the outer wall of the rotating shaft (33), one end of the connecting frame (35) is provided with a circular hole (351) matched with the rotating shaft (33), the other end of the connecting frame (35) is welded with a clamping block (34), the clamping block (34) is arc-shaped and matched with the outer wall of the reduced section (21), and the clamping block (34) is clamped on the outer wall of the reduced section (21) by driving the rotating shaft (33) to rotate.

2. The bag holding mechanism for filling the bag opening of a pet food filling machine according to claim 1, characterized in that: The clamping block (34) is provided with two clamping blocks (34), and the two clamping blocks (34) are wrapped and clamped on the outer wall of the reduced section (21) along the circumference, and the connection between the filling bag and the blanking tube (2) is sealed by wrapping and clamping.

3. The bag holding mechanism for filling a bag opening of a pet food filling machine according to claim 1 or 2, characterized in that: The bag fixing mechanism (3) further comprises an auxiliary clamping block (341), the auxiliary clamping block (341) is detachably fixed on the lower surface of the clamping block (34), the auxiliary clamping block (341) is V-shaped in cross section, and the auxiliary clamping block (341) is clamped on the connection between the reduced section (21) and the expanded section (22) under the action of the clamping block (34).

4. The bag holding mechanism for filling the bag opening of a pet food filling machine according to claim 3, wherein: The auxiliary clamping block (341) is provided with two auxiliary clamping blocks (341), and the two auxiliary clamping blocks (341) are arranged on the two clamping blocks (34), and the two auxiliary clamping blocks (341) are clamped on each other to form a closed annular structure wrapped outside the blanking tube (2).

5. The bag holding mechanism for filling a bag opening of a pet food filling machine according to claim 4, wherein: The bag fixing mechanism (3) further comprises an auxiliary sealing block (342), the auxiliary sealing block (342) is detachably fixed on the outer wall of the two ends of the clamping block (34), the auxiliary sealing block (342) is fixed by clamping or bolt fixing, the two auxiliary sealing blocks (342) on the same side of the two clamping blocks (34) form a group, and the auxiliary sealing block (342) is provided with two groups.

6. The bag holding mechanism for filling the bag opening of a pet food filling machine according to claim 3, wherein: The inner walls of the clamping block (34) and the auxiliary clamping block (341) are provided with anti-skid rubber pads, and the outer wall of the blanking tube (2) is also provided with anti-skid rubber pads.

7. The bag holding mechanism for filling the bag opening of a pet food filling machine according to claim 1, characterized in that: The base (31) is rotatably connected with a hydraulic telescopic rod (4), and the movable end of the hydraulic telescopic rod (4) is rotatably connected with the connecting frame (35).

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