Rotary dotter for emulsion explosive charging production line

Abstract

The utility model 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 distributed on the rotary machine body at intervals in the circumferential direction. 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] This utility model belongs to the field of emulsion explosive packaging, specifically a rotary buckle machine for emulsion explosive loading production line. Background Technology

[0002] Currently, the production of emulsion explosives generally employs automated emulsion explosive loading production lines, which typically utilize rotary clamping machines. For example, there is the existing publicly available technology "An Emulsion Explosive Loading System" (Publication No. CN106631636B, Publication Date March 15, 2019). Figure 1 , Figure 2 , Figure 3 As shown, the clipping machine of this emulsion explosive loading system is a rotary clipping machine. The rotary clipping machine 1 (rotary clipping machine) is arranged downstream of the sealing machine 4 and upstream of the explosive roll conveyor 5. The explosive strips 6 loaded by the sealing machine 4 are clipped and segmented by the rotary clipping machine 1 in the circumferential motion and then enter the explosive roll conveyor 5. The rotary clipping machine 1 has a rotary body 2 and multiple sets of clipping mechanisms 3 (clipping devices) with circumferential spacing distributed on the rotary body 2. Each set of clipping mechanisms 3 has an L-shaped clipping former 32 and an L-shaped locking device 31 hinged to the upper part of the clipping former 32. When the locking device 31 is open, the L-shaped jaws of the clipping former 32 are used to feed the explosive strips 6 laterally. The medicine strip 6 enters from the sealing machine 4 and moves clockwise along the rotary machine body 2. After being snapped and segmented by the snapping mechanism 3, the medicine strip 6 falls onto the medicine roll conveyor 5 and is sent downstream of the medicine roll conveyor 5.

[0003] When the drug strip 6 enters the drug roll conveyor 5 after being buckled and segmented by the rotary buckling machine 1 in the circumferential motion, the drug strip 6 is prone to getting stuck at the buckling mechanism 3, which prevents the drug strip 6 from falling smoothly onto the drug roll conveyor 5, resulting in the following problems:

[0004] 1. This caused medicine strip 6 to be included in the check-in process, which in turn prevented it from being properly checked in and formed.

[0005] 2. This causes the buckling mechanism 3 to malfunction, making production impossible and requiring a shutdown for maintenance, resulting in low production efficiency. Utility Model Content

[0006] The purpose of this utility model is to provide a rotary buckling machine for emulsion explosive loading production line that is simple in structure, can prevent the explosive strip from being pulled into the buckling stroke, and ensures production efficiency, in order to address the shortcomings of the existing technology.

[0007] The technical objective of this utility model is achieved through the following technical solution:

[0008] A rotary snap-fitting machine for an emulsion explosive loading production line is provided. The rotary snap-fitting machine is positioned downstream of a sealing machine and upstream of a cartridge conveyor. The explosive strips loaded by the sealing machine undergo snap-fitting and segmentation processing in a circumferential motion by the rotary snap-fitting machine before entering the cartridge conveyor. The rotary snap-fitting machine has a rotating body and multiple sets of snap-fitting mechanisms spaced circumferentially on the rotating body. Each set of snap-fitting mechanisms has an L-shaped snap-fitting device and an L-shaped locking device hinged to the upper part of the snap-fitting device. When the locking device is open, the L-shaped jaws of the snap-fitting device are engaged... The drug strip is fed horizontally; flexible drug retraction strips are connected to the upper and lower sides of the jaws of the buckling mechanism, with the upper end of each retraction strip connected to the locking device and the lower end connected to the snap-fit ​​forming device; when the locking device of the buckling mechanism is locked at the jaws of the snap-fit ​​forming device, the two retraction strips in the closed state are in a relaxed state at the jaws of the snap-fit ​​forming device and retreat to the rear side of the jaws; when the locking device of the buckling mechanism is opened at the jaws of the snap-fit ​​forming device, the two retraction strips in the tensioned state are in a tensioned state at the jaws of the snap-fit ​​forming device and advance to the front side of the jaws.

[0009] Preferably, the upper end of each antidote strip on the buckling mechanism is connected to the bracket at the L-shaped bend of the locking device, and the lower end is connected to the bracket at the bottom front end of the buckle forming device.

[0010] Preferably, the hardness of the upstream antidote strip of the buckling mechanism is less than the hardness of the downstream antidote strip.

[0011] Preferably, the upstream side retraction strip is a rubber composite strip.

[0012] Preferably, the downstream-side dispensing strip is a PTFE strip.

[0013] Preferably, the downstream-side dispensing strip is a combination structure of a PTFE strip and a rubber composite strip;

[0014] The rubber composite strip is connected to the upper end of the PTFE strip by means of rivets or bolts;

[0015] The downstream side of the combined structure is connected to the snap-fit ​​molding device via the lower end of the PTFE strip and to the locking device via the rubber composite strip.

[0016] Preferably, in the downstream side of the combined structure, the length of the rubber composite strip is less than 1 / 5 of the total length of the downstream side retraction strip.

[0017] Preferably, the lengths of the upstream and downstream antidote strips of the buckling mechanism are equal.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model relates to a rotary snap-fit ​​machine for emulsion explosive charging production lines. Flexible ejector strips are connected to the upstream and downstream sides of the snap-fit ​​mechanism's jaws. The upper end of each ejector strip is connected to a locking device, and the lower end is connected to a snap-fit ​​forming device. When the locking device of the snap-fit ​​mechanism is engaged at the jaws of the snap-fit ​​forming device, the two ejector strips in the engaged state are relaxed and retract to the rear of the jaws. When the locking device of the snap-fit ​​mechanism is disengaged at the jaws of the snap-fit ​​forming device, the two ejector strips in the tensioned state are stretched and advance to the front of the jaws. This utility model has the advantages of simple structure, preventing the explosive strips from being pulled into the snap-fit ​​stroke, and high production efficiency.

[0020] 2. The downstream side retraction strip of this utility model is a combination structure of PTFE plastic strip and rubber composite strip; by adopting this technical measure, the original characteristics of the downstream side retraction strip are retained, while avoiding the problem of the upper end of the downstream side retraction strip breaking during repeated expansion and contraction, thus ensuring production efficiency. Attached Figure Description

[0021] Figure 1 This is a partial structural diagram of an emulsion explosive loading production line;

[0022] Figure 2 yes Figure 1 Top view;

[0023] Figure 3 This is a schematic diagram of the structure of this utility model;

[0024] Figure 4 yes Figure 3 A schematic diagram of the buckle mechanism without the medicine return strip installed;

[0025] Figure 5 yes Figure 3 Schematic diagram of the installation of the middle and upper side medicine retraction strip;

[0026] Figure 6 yes Figure 5 Schematic diagram of the structure of the upper and middle side retraction strip;

[0027] Figure 7 This is a schematic diagram of the downstream side retraction strip;

[0028] Reference numerals: 1—Rotary buckle-applying machine; 2—Rotary machine body; 3—Buckling mechanism;

[0029] 31—Locking device; 311—First upper support; 312—Second upper support; 32—Snap-fit ​​forming device; 321—First lower support; 322—Second lower support;

[0030] 4—Sealing machine; 5—Medicine roll conveyor; 6—Medicine strip;

[0031] 7—Drug removal strip; 71—Upstream drug removal strip; 72—Downstream drug removal strip; 721—Main body of downstream drug removal strip; 722—Connecting section. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] 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 claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] like Figure 1 — Figure 7 As shown, a rotary snap-fit ​​machine is used in an emulsion explosive loading production line. The rotary snap-fit ​​machine 1 is arranged downstream of the sealing machine 4 and upstream of the explosive roll conveyor 5. The explosive strips 6 loaded by the sealing machine 4 are snapped and segmented by the rotary snap-fit ​​machine 1 in a circumferential motion before entering the explosive roll conveyor 5. The rotary snap-fit ​​machine 1 has a rotary body 2 and multiple sets of snap-fit ​​mechanisms 3 with circumferential spacing distributed on the rotary body 2. Each set of snap-fit ​​mechanisms 3 has an L-shaped snap-fit ​​forming device 32 and an L-shaped locking device 31 hinged to the upper part of the snap-fit ​​forming device 32. When the locking device 31 is open, the L-shaped jaws of the snap-fit ​​forming device 32 are used for lateral... The feeding strip 6 is inserted; flexible strips 7 are connected to the upper and lower sides of the jaws of the buckling mechanism 3, respectively. The upper end of each strip 7 is connected to the locking device 31 and the lower end is connected to the snap-forming device 32. When the locking device 31 of the buckling mechanism 3 is locked at the jaws of the snap-forming device 32, the two strips 7 in the closed state are in a relaxed state at the jaws of the snap-forming device 32 and retreat to the rear side of the jaws. When the locking device 31 of the buckling mechanism 3 is opened at the jaws of the snap-forming device 32, the two strips 7 in the tensioned state are in a tensioned state at the jaws of the snap-forming device 32 and advance to the front side of the jaws.

[0036] like Figure 1 , Figure 2 As shown, in this embodiment, the drug strip 6 enters from the sealing machine 4 and moves clockwise along the rotary machine body 2. After being snapped and segmented by the snapping mechanism 3, the drug strip 6 falls onto the drug roll conveyor 5, which then transports it downstream. The upstream and downstream jaws of the snapping mechanism 3 correspond to the entry and exit directions of the drug strip 6, respectively. Flexible retractable strips 7 are connected to the upstream and downstream sides of the jaws of the snapping mechanism 3, forming a C-shape. As the snapping mechanism 3 operates, the retractable strips 7 retract to the rear of the jaws / advance to the front of the jaws, thus detaching the snapped and segmented drug strip 6 from the snapping mechanism 3 and dropping it onto the drug roll conveyor 5. This prevents the drug strip 6 from being pulled into the snapping stroke, which could cause problems with proper snapping and forming, and also prevents the snapping mechanism 3 from malfunctioning, which would disrupt production and require maintenance, resulting in low production efficiency.

[0037] Specifically, the drug strip 7 includes an upstream drug strip 71 and a downstream drug strip 72. When the locking device 31 of the buckling mechanism 3 locks at the jaws of the snap-fit ​​forming device 32, the upstream drug strip 71 and the downstream drug strip 72, which are in a closed state, are in a relaxed state at the jaws of the snap-fit ​​forming device 32 and retreat to the rear side of the jaws. After the drug strip 6 is buckled and segmented by the buckling mechanism 3, it is necessary to remove the buckled and segmented drug strip 6 from the buckling mechanism 3. At this time, the locking device 31 of the buckling mechanism 3 opens at the jaws of the snap-fit ​​forming device 32, and the upstream drug strip 71 and the downstream drug strip 72, which are in a tense state, are in a tense state at the jaws of the snap-fit ​​forming device 32 and advance to the front side of the jaws. When the two sides of the unwinding strip 7 in the tensioned state advance to the front of the jaws, the unwinding strip 7 pushes the strip 6 that has not been removed from the buckling mechanism 3 off, causing the strip 6 to fall onto the drug roll conveyor 5.

[0038] like Figure 3 , Figure 4 As shown, the upper end of each side of the drug-removing strip 7 on the fastening mechanism 3 is connected to the bracket at the L-shaped bend of the locking device 31, and the lower end is connected to the bracket at the bottom front end of the snap-fit ​​forming device 32. The maximum distance is formed between the bracket at the L-shaped bend of the locking device 31 and the bracket at the bottom front end of the snap-fit ​​forming device 32. This technical measure ensures that each side of the drug-removing strip 7 on the fastening mechanism 3 receives significant tension when the locking device 31 opens at the jaws of the snap-fit ​​forming device 32, thereby effectively ensuring that the drug strip 6 is released from the fastening mechanism 3.

[0039] Specifically, the upstream and downstream sides of the L-shaped bend of the locking device 31 are respectively provided with a first upper bracket 311 and a second upper bracket 312; the upstream and downstream sides of the bottom front end of the snap-fit ​​forming device 32 are respectively provided with a first lower bracket 321 and a second lower bracket 322. The first upper bracket 311 and the first lower bracket 321 are detachably connected to the upper and lower ends of the upstream side dispensing strip 71. The second upper bracket 312 and the second lower bracket 322 are detachably connected to the upper and lower ends of the downstream side dispensing strip 72. The first upper bracket 311 and the first lower bracket 321, the second upper bracket 312 and the second lower bracket 322 are respectively provided with through holes, and the upper and lower ends of the upstream side dispensing strip 71 and the downstream side dispensing strip 72 are provided with through holes that mate with the through holes; the upstream side dispensing strip 71 is bolted to the first upper bracket 311 and the first lower bracket 321; the downstream side dispensing strip 72 is bolted to the second upper bracket 312 and the second lower bracket 322.

[0040] The upstream and downstream retractable strips 71 and 72 of the buckling mechanism 3 are of equal length. In actual use, the upstream and downstream retractable strips 71 and 72 will simultaneously retract to the rear of the jaws and advance to the front of the jaws as the buckling mechanism 3 operates. The equal lengths of the upstream and downstream retractable strips 71 and 72 prevent interference with the support and release of the strip 6 during the operation of the buckling mechanism 3, thus ensuring the quality of strip 6 production.

[0041] The hardness of the upstream retractable strip 71 of the fastening mechanism 3 is less than that of the downstream retractable strip 72. In actual use, after the strip 6 enters from the sealing machine 4 and enters the fastening mechanism 3, the locking device 31 of the fastening mechanism 3 locks at the jaws of the snap-fit ​​forming device 32. The two retractable strips 7 in the closed state are in a relaxed state at the jaws of the snap-fit ​​forming device 32 and retreat to the rear of the jaws. The strip 6 is not segmented when it moves clockwise along the rotary machine body 2; at this time, the fastening mechanism 3 and the upstream and downstream retractable strips 71 and 72 of the fastening mechanism 3 provide a certain support for the unsegmented strip 6. When the pill 6 rotates to the upstream of the pill conveyor 5, the buckling mechanism 3 completes the buckling and segmentation; at this time, the locking device 31 separates from the snap-forming device 32, and the locking device 31 of the buckling mechanism 3 opens at the jaws of the snap-forming device 32; the two unwinding pills 7 in the tensioned state are in the tensioned state at the jaws of the snap-forming device 32 and advance to the front of the jaws; the downstream unwinding pill 72 pushes the pill 6 that has come off the buckling mechanism 3 onto the pill conveyor 5. That is, the upstream unwinding pill 71 of the buckling mechanism 3 mainly plays a supporting role. The material of the upstream unwinding pill 71 is relatively soft to ensure stability during support and to ensure that good contact and support are always maintained. While the downstream unwinding pill 72 plays a certain supporting role, it also undertakes the role of pushing the pill 6 off the buckling mechanism 3. Both the downstream ejection strip 72 and the upstream ejection strip 71 are made of flexible material, but the downstream ejection strip 72 is made of a harder material than the upstream ejection strip 71. Choosing a harder material for the downstream ejection strip 72 helps reduce deformation when pushing the strip 6, thus ensuring stability during the pushing process.

[0042] In practical use, the upstream side retraction strip 71 is a rubber composite belt. Rubber composite belts have good comprehensive performance, combining the excellent properties of various rubbers, such as wear resistance, elasticity, and strength. They possess good elasticity and flexibility, with moderate hardness, enabling them to adapt to significant deformation.

[0043] In actual use, the downstream side ejection strip 72 is made of PTFE (polytetrafluoroethylene) plastic. PTFE plastic is a relatively hard plastic material with extremely strong chemical stability, a low coefficient of friction that reduces resistance during material contact, and non-stick properties, meaning almost no solid materials can adhere to its surface.

[0044] like Figure 7As shown, the downstream dispensing strip 72 is a combination structure of a PTFE strip and a rubber composite strip. The rubber composite strip is connected to the upper end of the PTFE strip by rivets or bolts. The downstream dispensing strip 72 of the combined structure is connected to the snap-fit ​​forming device 32 through the lower end of the PTFE strip and to the locking device 31 through the rubber composite strip. In actual use, the downstream dispensing strip 72 includes a downstream dispensing strip body 721 made of PTFE strip and a connecting section 722 made of rubber composite strip. The upper end of the downstream dispensing strip body 721 is provided with a connecting hole, and the connecting section 722 is provided with a connecting hole corresponding to the connecting hole. The downstream dispensing strip body 721 and the connecting section 722 are connected by rivets or bolts. The lower end of the downstream dispensing strip body 721 is bolted to the second lower bracket 322 of the snap-fit ​​forming device 32. The end of the connecting section 722 away from the downstream dispensing strip body 721 is bolted to the second upper bracket 312 of the locking device 31. Since the primary function of the downstream retraction strip 72 is to push the pre-fastened and segmented strip 6 off the clamping mechanism, a softer rubber composite strip is not suitable. Therefore, a PTFE strip is chosen for the downstream retraction strip 72. However, in actual use, the upper end of the PTFE strip-made downstream retraction strip 72 may break during repeated expansion and contraction. A broken downstream retraction strip 72 cannot properly push the pre-fastened and segmented strip 6 off the clamping mechanism. Therefore, the downstream retraction strip 72 adopts a combined structure consisting of a downstream retraction strip body 721 made of PTFE strip and a connecting section 722 made of rubber composite strip. The connecting section 722 made of rubber composite strip has good elasticity and flexibility, and its moderate hardness allows it to adapt to larger deformations, reducing the risk of breakage during repeated expansion and contraction and improving its service life. This technical measure ensures the hardness of the part of the downstream side retracting strip 72 that pushes the strip 6 down, and also avoids the problem of the upper end of the downstream side retracting strip 72 breaking during repeated expansion and contraction, thus ensuring production efficiency.

[0045] In the downstream retraction strip 72 of the composite structure, the length of the rubber composite belt is less than 1 / 5 of the total length of the downstream retraction strip 72. In actual use, the length of the connecting section 722 is also less than 1 / 5 of the total length of the downstream retraction strip 72. The overall length of the connecting section 722 should not be too long; it is only used to prevent the upper end of the downstream retraction strip 72 from breaking during repeated expansion and contraction. This technical measure retains the original characteristics of the downstream retraction strip 72 while preventing the upper end from breaking during repeated expansion and contraction, thus ensuring production efficiency.

[0046] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A rotary buckling machine for an emulsion explosive loading production line, wherein the rotary buckling machine is arranged downstream of a sealing machine and upstream of a cartridge conveyor, and the explosive strips loaded by the sealing machine are buckled and segmented by the rotary buckling machine in a circumferential motion before entering the cartridge conveyor. The rotary buttoning machine has a rotary body and multiple buttoning mechanisms with circumferential spacing distributed on the rotary body; Each set of buckling mechanisms has an L-shaped buckle forming device and an L-shaped locking device hinged to the upper part of the buckle forming device. When the locking device is open, the L-shaped jaws of the buckle forming device are used for transverse feeding of the drug strip. Its features are: The buckling mechanism has flexible strips for removing medicine connected to the upper and lower sides of the jaws, with the upper end of each strip connected to the locking device and the lower end connected to the buckle forming device. When the locking device of the buckling mechanism locks at the jaws of the buckle forming device, the two sides of the retracting strip in the retracted state are in a relaxed state at the jaws of the buckle forming device and retract to the rear side of the jaws. When the locking device of the buckling mechanism opens at the jaws of the buckle forming device, the two sides of the tensioned strip are in a tensioned state at the jaws of the buckle forming device and move forward to the front of the jaws.

2. The rotary buckling machine for the emulsion explosive loading production line according to claim 1, characterized in that: The upper end of each antidote strip on the buckling mechanism is connected to the bracket at the L-shaped bend of the locking device, and the lower end is connected to the bracket at the bottom front end of the buckle forming device.

3. The rotary buckling machine for the emulsion explosive loading production line according to claim 1 or 2, characterized in that: The hardness of the upstream antidote strip of the buckling mechanism is less than that of the downstream antidote strip.

4. The rotary buckling machine for the emulsion explosive loading production line according to claim 3, characterized in that: The upstream side anti-drug strip is a rubber composite strip.

5. The rotary buckling machine for the emulsion explosive loading production line according to claim 3, characterized in that: The downstream side ejection strip is a PTFE strip.

6. The rotary buckling machine for the emulsion explosive loading production line according to claim 3, characterized in that: The downstream-side dispensing strip is a combination structure of PTFE plastic strip and rubber composite strip; The rubber composite strip is connected to the upper end of the PTFE strip by means of rivets or bolts; The downstream side of the combined structure is connected to the snap-fit ​​molding device via the lower end of the PTFE strip and to the locking device via the rubber composite strip.

7. The rotary buckling machine for the emulsion explosive loading production line according to claim 6, characterized in that: The downstream side ejection strip of the combined structure has a rubber composite belt with a length less than 1 / 5 of the total length of the downstream side ejection strip.

8. The rotary buckling machine for the emulsion explosive loading production line according to claim 3, characterized in that: The lengths of the upstream and downstream antidote strips of the buckling mechanism are equal.

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