Rotary dotter for emulsion explosive charging production line

Abstract

The invention discloses a rotary button punching machine for an emulsion explosive charging production line. The rotary button punching machine is provided with a rotary machine body and a plurality of groups of button punching mechanisms which are annularly distributed on the rotary machine body at intervals; each group of dotting mechanism is provided with an L-shaped buckle former and an L-shaped locking device which is hinged to the upper part of the buckle former; the upstream side and the downstream side of a jaw of the knotting mechanism are connected with medicine returning strips of flexible structures respectively, the upper end of the medicine returning strip on each side is connected to the locking device, and the lower end of the medicine returning strip on each side is connected to the buckle forming device. When the locking device of the button punching mechanism is locked at the jaw of the buckle forming device, the medicine withdrawing strips on the two sides in the folded state are in the loose state at the jaw of the buckle forming device and retreat to the rear side of the jaw. When the locking device of the button punching mechanism is opened at the jaw of the buckle forming device, the medicine returning strips on the two sides in the tensioning state are in the tensioning state at the jaw of the buckle forming device and advance to the front side of the jaw. The device has the advantages that the medicine strips can be prevented from being pulled into the punching stroke, and the production efficiency is guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of emulsion explosive packaging, in particular to a rotary buckle-making machine for an emulsion explosive charging production line. Background Art

[0002] At present, the production of emulsion explosives generally adopts an automated emulsion explosive charging production line, which generally adopts a rotary clipping machine. For example, the existing public technology "An emulsion explosive charging system" (publication number CN106631636B, publication date March 15, 2019). Figure 1 、 Figure 2 、 Figure 3 As shown, the clipping machine of the emulsion explosive charging system is a rotary clipping machine. The rotary clipping machine 1 (rotary clipping machine) is arranged downstream of the film sealing machine 4 and upstream of the medicine roll conveyor 5. After being loaded by the film sealing machine 4, the medicine strip 6 is clipped and segmented by the rotary clipping machine 1 in a circumferential motion before entering the medicine roll conveyor 5. The rotary clipping machine 1 comprises a rotating body 2 and multiple sets of clipping mechanisms 3 (clipping devices) distributed circumferentially on the rotating body 2. Each set of clipping mechanisms 3 comprises an L-shaped clip former 32, hinged to an L-shaped locker 31 at the top of the clip former 32. When the locker 31 is open, the L-shaped jaws of the clip former 32 are used to feed the medicine strip 6 horizontally. The medicine strip 6 enters from the film sealing machine 4 and moves clockwise along the rotating body 2. After the buckling mechanism 3 completes the buckling and segmentation, the medicine strip 6 falls on the medicine roll conveyor 5 and is sent to the downstream of the medicine roll conveyor 5 through the medicine roll conveyor 5.

[0003] When the medicine strip 6 enters the medicine roll conveyor 5 after being buckled and segmented by the rotary buckling machine 1 in the circumferential motion, the medicine strip 6 is easily stuck at the buckling mechanism 3, which prevents the medicine strip 6 from falling smoothly onto the medicine roll conveyor 5, and then the following problems occur: 1. The medicine strip 6 is pulled into the punching stroke, which makes it impossible to punch and form the medicine strip normally.

[0004] 2. The buckle mechanism 3 cannot operate normally, so that production cannot proceed normally and the machine must be shut down for maintenance, resulting in low production efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a rotary button punching machine for an emulsion explosive charging production line, which has a simple structure, can prevent the explosive strip from being pulled into the punching stroke, and ensure production efficiency, in response to the shortcomings of the existing technology.

[0006] The technical objectives of the present invention are achieved through the following technical solutions: A rotary buckle-making machine for an emulsion explosive charging production line, wherein the rotary buckle-making machine is arranged downstream of a film sealing machine and upstream of a medicine roll conveyor. After the medicine strips are charged by the film sealing machine, they are buckled and segmented by the rotary buckle-making machine in a circumferential motion and then enter the medicine roll conveyor; the rotary buckle-making machine comprises a rotary body and a plurality of buckle-making mechanisms distributed on the rotary body at circumferential intervals; each buckle-making mechanism comprises an L-shaped buckle former, an L-shaped locking device hinged to the upper part of the buckle former, and when the locking device is in an open state, the L-shaped jaws of the buckle former are used The medicine strips are fed horizontally; the upstream and downstream sides of the jaws of the buckle mechanism are respectively connected with medicine withdrawal strips with flexible structures, the upper end of the medicine withdrawal strip on each side is connected to the locking device, and the lower end is connected to the buckle former; when the locking device of the buckle mechanism is locked at the jaws of the buckle former, the medicine withdrawal strips on both sides in the retracted state are respectively in a relaxed state at the jaws of the buckle former and retreat to the rear side of the jaws; when the locking device of the buckle mechanism is opened at the jaws of the buckle former, the medicine withdrawal strips on both sides in the tensioned state are respectively in a tensioned state at the jaws of the buckle former and advance to the front side of the jaws.

[0007] Preferably, the upper end of each side of the drug withdrawal strip on the buckle mechanism is connected to the bracket at the L-shaped bend of the locker, and the lower end is connected to the bracket at the bottom front end of the buckle former.

[0008] Preferably, the hardness of the upstream side drug rejection strip of the buckling mechanism is smaller than the hardness of the downstream side drug rejection strip.

[0009] Preferably, the upstream side drug withdrawal strip is a rubber composite belt.

[0010] Preferably, the downstream side drug withdrawal strip is a tetrafluoroplastic strip.

[0011] Preferably, the downstream side drug withdrawal strip is a combination structure of a tetrafluoroplastic belt and a rubber composite belt; The rubber composite belt is connected to the upper end of the tetrafluoroplastic belt by rivets or bolts; The downstream side medicine withdrawal strip of the combined structure is connected to the buckle former through the lower end of the tetrafluoroplastic belt and is connected to the locker through the rubber composite belt.

[0012] Preferably, the length of the rubber composite belt of the downstream drug withdrawal strip of the combined structure is less than 1 / 5 of the length of the entire downstream drug withdrawal strip.

[0013] Preferably, the length of the upstream side drug rejection strip of the buckle mechanism is equal to the length of the downstream side drug rejection strip.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The rotary clipping machine for an emulsion explosive charging production line of the present invention has flexible strips of drug rejection connected to the upstream and downstream sides of the clipping mechanism's jaws. The upper end of each strip is connected to a locker, and the lower end is connected to a clip former. When the locker of the clipping mechanism is locked at the clip former's jaws, the strips of drug rejection on both sides, which are in a retracted state, are in a relaxed state at the clip former's jaws and retreat to the rear side of the jaws. When the locker of the clipping mechanism is opened at the clip former's jaws, the strips of drug rejection on both sides, which are in a tensioned state, are in a tensioned state at the clip former's jaws and advance to the front side of the jaws. The present invention has the advantages of a simple structure, can prevent the drug strips from being pulled into the clipping stroke, and has high production efficiency.

[0015] 2. The downstream side drug withdrawal strip of the present invention is a combination structure of a tetrafluoroplastic belt and a rubber composite belt; adopting this technical measure, the original characteristics of the downstream side drug withdrawal strip are retained, and the problem of the upper end of the downstream side drug withdrawal strip breaking during repeated expansion and contraction is avoided, thereby ensuring production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial structural diagram of the emulsion explosive charging production line; Figure 2 yes Figure 1 A top view of Figure 3 It is a structural schematic diagram of the present invention; Figure 4 yes Figure 3 A schematic diagram of the structure of the buckle mechanism without the drug return strip installed; Figure 5 yes Figure 3 Schematic diagram of the installation of the medicine withdrawal strip on the upper middle side; Figure 6 yes Figure 5 Schematic diagram of the structure of the drug withdrawal strip on the upper middle side; Figure 7 This is a schematic diagram of the structure of the downstream side medicine withdrawal strip; Reference numerals: 1—rotary buckle-fastening machine; 2—rotating machine body; 3—buckle-fastening mechanism; 31 - locker; 311 - first upper bracket; 312 - second upper bracket; 32 - buckle former; 321 - first lower bracket; 322 - second lower bracket; 4—film sealing machine; 5—medicine roll conveyor; 6—medicine strip; 7—drug withdrawal strip; 71—upstream drug withdrawal strip; 72—downstream drug withdrawal strip; 721—downstream drug withdrawal strip body; 722—connecting section. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0019] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0020] like Figure 1 — Figure 7 As shown, a rotary buckle-making machine for an emulsion explosive charging production line is provided. The rotary buckle-making machine 1 is arranged downstream of a film sealing machine 4 and upstream of a medicine roll conveyor 5. After the medicine roll 6 is charged by the film sealing machine 4, it is buckled and segmented by the rotary buckle-making machine 1 in a circumferential motion and then enters the medicine roll conveyor 5. The rotary buckle-making machine 1 comprises a rotary body 2 and a plurality of buckle-making mechanisms 3 distributed on the rotary body 2 at circumferential intervals. Each buckle-making mechanism 3 comprises an L-shaped buckle former 32, an L-shaped locker 31 hinged to the upper part of the buckle former 32, and when the locker 31 is in an open state, the L-shaped jaws of the buckle former 32 are used as a transverse Feed the medicine strip 6; the upper and lower sides of the jaws of the buckle mechanism 3 are respectively connected to the medicine withdrawal strips 7 with a flexible structure, and the upper end of each medicine withdrawal strip 7 is connected to the locker 31 and the lower end is connected to the buckle former 32; when the locker 31 of the buckle mechanism 3 is locked at the jaws of the buckle former 32, the medicine withdrawal strips 7 on both sides in the retracted state are respectively in a relaxed state at the jaws of the buckle former 32 and retreat to the rear side of the jaws; when the locker 31 of the buckle mechanism 3 is opened at the jaws of the buckle former 32, the medicine withdrawal strips 7 on both sides in the tensioned state are respectively in a tensioned state at the jaws of the buckle former 32 and advance to the front side of the jaws.

[0021] like Figure 1 、 Figure 2As shown, in this embodiment, a medicine strip 6 enters from the film sealing machine 4 and moves clockwise along the rotating body 2. After being buckled and segmented by the buckling mechanism 3, the medicine strip 6 falls onto the medicine roll conveyor 5, which then conveys the medicine strip 6 downstream of the medicine roll conveyor 5. The upstream and downstream jaws of the buckling mechanism 3 correspond to the entry and exit directions of the medicine strip 6, respectively. Flexible drug removal strips 7 are connected to the upstream and downstream sides of the jaws of the buckling mechanism 3, forming a C-shaped arrangement. As the buckling mechanism 3 operates, the drug removal strip 7 retreats to the rear side of the jaws or advances to the front side, allowing the buckled and segmented medicine strip 6 to disengage from the buckling mechanism 3 and fall onto the medicine roll conveyor 5. This prevents the medicine strip 6 from being drawn into the buckling stroke, which could prevent proper buckling and forming, and prevents the buckling mechanism 3 from operating normally, disrupting production and necessitating maintenance, which would result in low production efficiency.

[0022] Specifically, the drug rejection strip 7 includes an upstream drug rejection strip 71 and a downstream drug rejection strip 72. When the locking device 31 of the buckle mechanism 3 is locked at the jaws of the buckle former 32, the upstream drug rejection strip 71 and the downstream drug rejection strip 72, which are in a retracted state, are in a relaxed state at the jaws of the buckle former 32 and retreat to the rear side of the jaws. After the drug strip 6 is buckled and segmented by the buckle mechanism 3, it is necessary to remove the buckled and segmented drug strip 6 from the buckle mechanism 3. At this time, the locking device 31 of the buckle mechanism 3 is opened at the jaws of the buckle former 32, and the upstream drug rejection strip 71 and the downstream drug rejection strip 72, which are in a tensioned state, are in a tensioned state at the jaws of the buckle former 32 and advance to the front side of the jaws. When the medicine strips 7 on both sides in the tensioned state advance to the front side of the jaws, the medicine strips 7 push down the medicine strips 6 that have not escaped from the buckling mechanism 3 , causing the medicine strips 6 to fall onto the medicine roll conveyor 5 .

[0023] like Figure 3 、 Figure 4 As shown, the upper end of each drug removal strip 7 on the buckle mechanism 3 is connected to the bracket at the L-shaped bend of the locker 31, and the lower end is connected to the bracket at the bottom front end of the buckle former 32. A maximum distance is formed between the bracket at the L-shaped bend of the locker 31 and the bracket at the bottom front end of the buckle former 32. With this technical measure, each drug removal strip 7 on the buckle mechanism 3 can obtain a large tension when the locker 31 opens at the jaws of the buckle former 32, thereby effectively ensuring that the drug strip 6 is removed from the buckle mechanism 3.

[0024] Specifically, a first upper bracket 311 and a second upper bracket 312 are provided on the upstream and downstream sides of the L-shaped bend of the locker 31, respectively. A first lower bracket 321 and a second lower bracket 322 are provided on the upstream and downstream sides of the bottom front end of the clip former 32, respectively. The first upper bracket 311 and the first lower bracket 321 are detachably connected to the upper and lower ends of the upstream drug rejection strip 71, respectively. The second upper bracket 312 and the second lower bracket 322 are detachably connected to the upper and lower ends of the downstream drug rejection strip 72, respectively. Through holes are provided in the first upper bracket 311 and the first lower bracket 321, and in the second upper bracket 312 and the second lower bracket 322, respectively. The upstream drug rejection strip 71 and the downstream drug rejection strip 72 are provided with matching through holes at their upper and lower ends. The upstream drug rejection strip 71 is bolted to the first upper bracket 311 and the first lower bracket 321, respectively. The downstream drug rejection strip 72 is bolted to the second upper bracket 312 and the second lower bracket 322.

[0025] The upstream and downstream drug-removal strips 71 and 72 of the buckle mechanism 3 are of equal length. In actual use, the upstream and downstream drug-removal strips 71 and 72 simultaneously retract to the rear and advance to the front of the jaws as the buckle mechanism 3 operates. This equal length prevents interference with the support and removal of the drug strip 6 during the operation of the buckle mechanism 3, thereby ensuring the quality of drug strip 6 production.

[0026] The hardness of the upstream drug rejection strip 71 of the buckle mechanism 3 is less than that of the downstream drug rejection strip 72. In actual use, after the drug strip 6 enters the film sealing machine 4 and enters the buckle mechanism 3, the buckle mechanism 3's locker 31 locks with the jaws of the buckle former 32. The two, previously closed drug rejection strips 7 are relaxed within the jaws of the buckle former 32 and retreat to the rear of the jaws. The drug strip 6 is not segmented as it moves clockwise along the rotating body 2. At this point, the buckle mechanism 3 and its upstream and downstream drug rejection strips 71, 72 provide some support for the unsegmented drug strip 6. When the medicine strip 6 rotates to the upstream of the medicine roll conveyor 5, the buckling mechanism 3 completes the buckling and segments it. At this time, the locking device 31 separates from the buckle former 32, and the locking device 31 of the buckle mechanism 3 opens at the jaws of the buckle former 32. The two side drug removal strips 7, which are in a tensioned state, are respectively in a tensioned state at the jaws of the buckle former 32 and advance to the front side of the jaws. The downstream drug removal strip 72 pushes the medicine strip 6 that has escaped from the buckling mechanism 3 onto the medicine roll conveyor 5. In other words, the upstream drug removal strip 71 of the buckling mechanism 3 mainly plays a supporting role. The upstream drug removal strip 71 is made of a relatively soft material, ensuring stability during support and ensuring that good contact and support are always maintained. The downstream drug removal strip 72, while providing a certain supporting role, also plays the role of pushing the medicine strip 6 off the buckle mechanism 3. Both the downstream medicine withdrawal strip 72 and the upstream medicine withdrawal strip 71 are made of a flexible material, but the material of the downstream medicine withdrawal strip 72 is harder than that of the upstream medicine withdrawal strip 71. The harder material of the downstream medicine withdrawal strip 72 can ensure that the deformation of the downstream medicine withdrawal strip 72 when pushing the medicine strip 6 is reduced, thereby ensuring the stability of the downstream medicine withdrawal strip 72 when pushing the medicine strip 6.

[0027] In actual use, the upstream side drug removal strip 71 is a rubber composite belt. The rubber composite belt has good comprehensive performance. The rubber composite belt combines the excellent properties of multiple rubbers, such as wear resistance, elasticity, strength, etc. The rubber composite belt has good elasticity and flexibility, and its hardness is moderate, and it can adapt to large deformations. In actual use, the downstream drug removal strip 72 is a PTFE tape. PTFE tape is a relatively hard plastic material with strong chemical stability and a low coefficient of friction, which reduces resistance during material contact. It is also non-sticky, meaning almost all solid materials cannot adhere to its surface.

[0028] like Figure 7As shown, the downstream drug-removal strip 72 is a combination of a polytetrafluoroethylene (PTFE) tape and a rubber composite tape. The rubber composite tape is connected to the upper end of the polytetrafluoroethylene (PTFE) tape by rivets or bolts. The combined downstream drug-removal strip 72 is connected to the clip former 32 via the lower end of the polytetrafluoroethylene (PTFE) tape and to the locker 31 via the rubber composite tape. In actual use, the downstream drug-removal strip 72 comprises a downstream drug-removal strip body 721 made of polytetrafluoroethylene (PTFE) tape and a connecting section 722 made of the rubber composite tape. The upper end of the downstream drug-removal strip body 721 is provided with a connecting hole, and the connecting section 722 is provided with a corresponding connecting hole. The downstream drug-removal strip body 721 and the connecting section 722 are connected by rivets or bolts. The lower end of the downstream drug-removal strip body 721 is bolted to the second lower bracket 322 of the clip former 32. The end of the connecting section 722, distal from the downstream drug-removal strip body 721, is bolted to the second upper bracket 312 of the locker 31. Since the main function of the downstream drug return strip 72 is to push the drug strip 6 that has been buckled and segmented off the punching mechanism, it is not easy to choose a softer rubber composite belt for its hardness. Therefore, the downstream drug return strip 72 is made of a polytetrafluoroethylene plastic belt. However, in actual use, the upper end of the downstream drug return strip 72 made of polytetrafluoroethylene plastic belt will break during repeated expansion and contraction. After breaking, the downstream drug return strip 72 cannot normally achieve the function of pushing the drug strip 6 that has been buckled and segmented off the punching mechanism. Therefore, the downstream drug return strip 72 adopts a combined structure formed by a downstream drug return strip main body 721 made of polytetrafluoroethylene plastic belt and a connecting section 722 made of a rubber composite belt. The connecting section 722 made of a rubber composite belt has good elasticity and flexibility, and its hardness is moderate, which can adapt to large deformations, can reduce the problem of breakage during repeated expansion and contraction, and improve the service life. The adoption of this technical measure not only ensures the hardness of the part where the downstream side medicine withdrawal strip 72 pushes down the medicine strip 6, but also avoids the problem of the upper end of the downstream side medicine withdrawal strip 72 breaking during repeated expansion and contraction, thereby ensuring production efficiency.

[0029] The length of the rubber composite belt of the downstream drug withdrawal strip 72 of the combined structure is less than 1 / 5 of the length of the entire downstream drug withdrawal strip 72. In actual use, the length of the connecting section 722 is less than 1 / 5 of the length of the entire downstream drug withdrawal strip 72. The overall length of the connecting section 722 is not easy to be too long. The connecting section 722 is only used to avoid the problem of the upper end of the downstream drug withdrawal strip 72 breaking during repeated expansion and contraction. The adoption of this technical measure not only retains the original characteristics of the downstream drug withdrawal strip 72, but also avoids the problem of the upper end of the downstream drug withdrawal strip 72 breaking during repeated expansion and contraction, thereby ensuring production efficiency.

[0030] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A rotary buckle machine for an emulsion explosive charging production line, wherein the rotary buckle machine is arranged downstream of a film sealing machine and upstream of a medicine roll conveyor, and the medicine strips charged by the film sealing machine enter the medicine roll conveyor after buckling and segmenting by the rotary buckle machine in a circumferential motion; The rotary button-fastening machine comprises a rotary body and a plurality of button-fastening mechanisms distributed on the rotary body at annular intervals; Each set of buckle-binding mechanisms comprises an L-shaped buckle former, an L-shaped locker hinged to the upper part of the buckle former, and when the locker is in an open state, the L-shaped jaws of the buckle former are used for horizontally feeding the medicine strip; Features: The upper and lower sides of the jaws of the buckle mechanism are respectively connected with drug-removing strips of a flexible structure, and the upper end of the drug-removing strip on each side is connected to the locking device, and the lower end is connected to the buckle former; When the locking device of the buckle mechanism is locked at the jaws of the buckle former, the medicine-removing strips on both sides in the retracted state are in a relaxed state at the jaws of the buckle former and retreat to the rear side of the jaws; When the locker of the buckle mechanism opens at the jaws of the buckle former, the medicine withdrawal strips on both sides in the tensioned state are respectively in the tensioned state at the jaws of the buckle former and move forward to the front side of the jaws.

2. The rotary button-making machine for the emulsion explosive charging production line according to claim 1, characterized in that: The upper end of each side of the medicine withdrawal strip on the buckle mechanism is connected to the bracket at the L-shaped bend of the locker, and the lower end is connected to the bracket at the bottom front end of the buckle former.

3. The rotary button-making machine for the emulsion explosive charging production line according to claim 1 or 2, characterized in that: The hardness of the upstream side medicine-removing strip of the buckling mechanism is smaller than the hardness of the downstream side medicine-removing strip.

4. The rotary button-making machine for the emulsion explosive charging production line according to claim 3, characterized in that: The upstream side medicine withdrawal strip is a rubber composite belt.

5. The rotary button-making machine for the emulsion explosive charging production line according to claim 3, characterized in that: The downstream side medicine withdrawal strip is a polytetrafluoroethylene plastic strip.

6. The rotary button-making machine for the emulsion explosive charging production line according to claim 3, characterized in that: The downstream side medicine withdrawal strip is a combination structure of a tetrafluoro plastic strip and a rubber composite strip; The rubber composite belt is connected to the upper end of the tetrafluoroplastic belt by rivets or bolts; The downstream medicine withdrawal strip of the combined structure is connected to the buckle former through the lower end of the tetrafluoroplastic belt and is connected to the locker through the rubber composite belt.

7. The rotary button-making machine for the emulsion explosive charging production line according to claim 6, characterized in that: The length of the rubber composite belt of the downstream side drug withdrawal strip of the combined structure is less than 1 / 5 of the length of the entire downstream side drug withdrawal strip.

8. The rotary button-making machine for the emulsion explosive charging production line according to claim 3, characterized in that: The length of the upstream side medicine withdrawal strip of the buckling mechanism is equal to the length of the downstream side medicine withdrawal strip.

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