Paper injection device for firework production

Abstract

The utility model relates to the field of firework production, in particular to a paper injection device for firework production. The existing equipment is easy to cause flaws on a small wafer, and the small wafer is easy to deflect during injection, so that the injection effect of the small wafer is not good enough. A paper injection device for firework production comprises a bottom plate, molded fireworks, a supporting frame and the like. Mould pressing fireworks are placed on the bottom plate, a plurality of mould pressing firework cylinders are arranged on the mould pressing fireworks, a supporting frame is fixedly connected to the bottom plate, and a plurality of feeding ports are formed in the supporting frame. The extrusion rod pushes the small wafer to move downwards to make contact with the conical position of the feeding port of the supporting frame, the small wafer continues to move downwards to bend the outer ring of the small wafer through the conical position of the feeding port of the supporting frame, and therefore the small wafer can penetrate through the supporting frame to enter a firework cylinder of the molded firework. And the bent small round sheets can better tightly fit the firework cylinders of the molded fireworks.

Description

Technical Field

[0001] The present invention relates to the field of fireworks production, and in particular to a paper injection device for fireworks production. Background Art

[0002] Molded fireworks typically consist of several tubes arranged in a matrix. During production, the gunpowder is first loaded into the bottom of the tube, followed by a small disc, which is then loaded with a blasting tube. The disc serves to isolate the gunpowder from the bottom of the tube. To ensure this isolation, the disc must fit snugly within the tube's inner wall. Therefore, the disc's radius must be slightly larger than the tube's. This makes it difficult to insert the disc into the tube.

[0003] Existing devices use a squeeze rod to force the discs down, which can easily cause flaws around the discs and minor damage when they separate from the paper. This can lead to a loose fit between the discs and the firework tube, resulting in poor injection quality. Furthermore, the discs are prone to deflection when injected into the tube, making injection less stable and precise, further reducing their effectiveness. Summary of the Invention

[0004] In order to overcome the shortcomings of existing equipment that the small discs are prone to defects and are prone to deflection when the small discs are injected, resulting in an insufficient injection effect of the small discs, the present invention provides a paper injection device for fireworks production that can make the small discs fit more closely with the firework tube and can limit the small discs when they are injected, so that the injection of the small discs is more stable and accurate, and the injection effect of the small discs is better.

[0005] The technical implementation scheme of the present invention is: a paper injection device for fireworks production, including a base plate, molded fireworks, a support frame, a hydraulic cylinder, a limiting rod, a pressing mechanism and an extrusion mechanism. The molded fireworks are placed on the base plate, and the molded fireworks have several firework tubes. The base plate is fixedly connected to the support frame, and several feed ports are opened on the support frame. The feed ports on the support frame are conical. Four hydraulic cylinders are fixedly connected to the upper part of the base plate, and two limiting rods are fixedly connected to the support frame. The four hydraulic cylinders are commonly provided with a pressing mechanism, and the pressing mechanism is provided with an extrusion mechanism.

[0006] In a preferred embodiment of the present invention, the downward pressing mechanism includes a guide rod, a slide, a connecting spring and a pressure plate. Two guide rods are fixedly connected to the support frame, and the two guide rods are commonly slidably connected with a slide. The telescopic rods of the four hydraulic cylinders are commonly fixedly connected with a slide, and the two guide rods are slidably connected with a pressure plate. Two connecting springs are connected between the pressure plate and the slide, and the two connecting springs are respectively sleeved on the two guide rods.

[0007] In a preferred embodiment of the present invention, the extrusion mechanism includes an extrusion rod, a rotating cutter head, a loader and a paper piece. Several extrusion rods are rotatably connected to the slide plate, and several rotating cutter heads are rotatably connected to the pressure plate. Each rotating cutter head has two notches, and each extrusion rod is slidably connected to a rotating cutter head. A loader is fixedly connected to one side of the support frame, and a paper piece is placed on the loader. The paper piece is in contact with the support frame, and two limiting rods limit the paper piece.

[0008] In a preferred embodiment of the present invention, a punching mechanism is further included, which includes a puncture rod, a tension spring, a limiting plate frame, a pressure plate frame and a tension spring. Each extrusion rod is slidably connected to a puncture rod, and each puncture rod is connected to an extrusion rod with a tension spring. Several puncture rods are rotatably connected to a limiting plate frame, the limiting plate frame is slidably connected to the slide plate, and two pressure plate frames are slidably connected to the pressure plate. Each pressure plate frame is connected to the pressure plate with two tension springs, and the elastic force of the tension spring is less than the elastic force of the connecting spring.

[0009] In a preferred embodiment of the present invention, a rotating mechanism is further included, which includes a rotating tube, a fixing frame, a ball and a clamping plate. Each extrusion rod is fixedly connected to a rotating tube, each rotating tube has a guide groove, a plurality of fixing frames are fixedly connected to the clamping plate, each fixing frame is fixedly connected to a ball, each ball is in contact with a guide groove on a rotating tube, and the four rotating tubes located at the four corners of the slide are fixedly connected to a clamping plate, and each clamping plate is in contact with the limiting plate frame.

[0010] In a preferred embodiment of the present invention, it also includes a mounting frame, a pushing frame and a torsion spring. Two mounting frames are fixedly connected to both sides of the skateboard, and the two mounting frames on the same side form a group. Each group of mounting frames is rotatably connected to a pushing frame, and a torsion spring is connected between each mounting frame and a pushing frame.

[0011] In a preferred embodiment of the present invention, it also includes a positioning frame, a supporting spring and a contact block. The positioning frame is slidably connected to the supporting frame, two supporting springs are connected between the supporting frame and the positioning frame, and two contact blocks are fixedly connected to the clamping plate.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The extrusion rod continues to move downward and will contact the small disc and push the small disc to move downward. The extrusion rod pushes the small disc downward and will contact the tapered part of the feed port of the support frame. The small disc continues to move downward and will bend the outer circle of the small disc through the tapered part on the feed port of the support frame, so that the small disc can pass through the support frame and enter the fireworks tube of the molded fireworks. The bent small disc can better fit the fireworks tube of the molded fireworks, so that the injection effect of the small disc is better.

[0013] 2. The piercing rod moves downward to contact the paper and penetrate it. The rotating blade moves downward to cut the paper into small discs. The piercing rod punctures the center of the cut small disc. The piercing rod limits the small disc. The squeezing rod moves downward to contact the small disc and squeeze it downward. The squeezing rod fits tightly with the small disc. The piercing rod and the squeezing rod will simultaneously limit the small disc, allowing the small disc to be injected into the firework tube of the molded firework more stably and accurately, further improving the injection effect of the small disc.

[0014] 3. The downward movement of the rotating tube will cause the guide groove on the rotating tube to contact the ball, causing the rotating tube to rotate. The rotation of the rotating tube will drive the extrusion rod to rotate, and the rotation of the extrusion rod will drive the rotating cutter head to rotate. The rotating cutter head will cut the paper into small discs by rotating, so that the small discs can be cut more completely, thereby enabling the extrusion rod to inject the small discs into the molded fireworks tube to further improve the effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the first partial three-dimensional structure of the present invention.

[0017] Figure 3 It is a schematic diagram of the partially cutaway three-dimensional structure of the firework and the supporting frame of the present invention.

[0018] Figure 4 It is a partial three-dimensional structural diagram of the pressing mechanism, extrusion mechanism and punching mechanism of the present invention.

[0019] Figure 5 It is a schematic diagram of the partial three-dimensional structure of the punching mechanism of the present invention.

[0020] Figure 6 It is a partial three-dimensional structural schematic diagram of the extrusion rod and the rotating cutter head of the present invention.

[0021] Figure 7 It is a schematic cross-sectional three-dimensional structure diagram of the extrusion mechanism and the punching mechanism of the present invention.

[0022] Figure 8 It is a partial three-dimensional structural diagram of the punching mechanism and the rotating mechanism of the present invention.

[0023] Figure 9 It is a schematic diagram of the partial three-dimensional structure of the rotating mechanism of the present invention.

[0024] Figure 10 It is a schematic diagram of a second partial three-dimensional structure of the present invention.

[0025] Figure 11It is a schematic diagram of the three-dimensional structure of the positioning frame of the present invention.

[0026] Among them, the above-mentioned drawings include the following figure marks: 1. base plate, 2. molded fireworks, 3. support frame, 4. hydraulic cylinder, 6. limiting rod, 7. pressing mechanism, 71. guide rod, 72. slide plate, 73. connecting spring, 74. pressing plate, 8. extrusion mechanism, 81. extrusion rod, 82. rotating cutter head, 83. loader, 84. paper, 9. punching mechanism, 91. puncture rod, 92. tension spring, 93. limiting plate frame, 94. pressure plate frame, 95. tension spring, 10. rotating mechanism, 101. rotating tube, 102. fixing frame, 1021. round ball, 103. clamping plate, 111. mounting frame, 112. pushing frame, 113. torsion spring, 121. positioning frame, 122. support spring, 123. contact block. DETAILED DESCRIPTION

[0027] First of all, it should be noted that in the various embodiments described, identical components are provided with identical reference numerals or identical component names, wherein the disclosure contained throughout the entire description can be transferred to the same components having the same reference numerals or identical component names. Positional designations selected in the description, such as top, bottom, lateral, etc., also refer to the directly described and illustrated figures and are transferred to the new position in the event of a change in position.

[0028] Example 1: A paper injection device for fireworks production, such as Figure 1-Figure 7 As shown, it includes a base plate 1, molded fireworks 2, a support frame 3, a hydraulic cylinder 4, a limiting rod 6, a pressing mechanism and an extrusion mechanism. The molded fireworks 2 are placed on the base plate 1, and the molded fireworks 2 have several firework tubes. The base plate 1 is fixedly connected to the support frame 3, and the support frame 3 is provided with several feed ports. The feed port on the support frame 3 is conical. Four hydraulic cylinders 4 are connected to the base plate 1 by bolts. Two limiting rods 6 are welded to the support frame 3. The four hydraulic cylinders 4 are commonly provided with a pressing mechanism, and the pressing mechanism is provided with an extrusion mechanism.

[0029] The downward pressing mechanism includes a guide rod 71, a slide 72, a connecting spring 73 and a clamping plate 74. Two guide rods 71 ​​are welded on the support frame 3. The two guide rods 71 ​​are slidably connected to the slide 72. The telescopic rods of the four hydraulic cylinders 4 are fixedly connected to the slide 72. The two guide rods 71 ​​are slidably connected to the clamping plate 74. Two connecting springs 73 are connected between the clamping plate 74 and the slide 72. The two connecting springs 73 are respectively sleeved on the two guide rods 71.

[0030] The extrusion mechanism includes an extrusion rod 81, a rotating cutter head 82, a loader 83 and a paper piece 84. Several extrusion rods 81 are rotatably connected to the slide plate 72, and several rotating cutter heads 82 are rotatably connected to the pressure plate 74. Each rotating cutter head 82 has two notches. Each extrusion rod 81 is slidably connected to a rotating cutter head 82. A loader 83 is connected to one side of the support frame 3 by bolts. A paper piece 84 is placed on the loader 83. The rotating cutter head 82 is used to cut the paper piece 84. The paper piece 84 is in contact with the support frame 3, and two limiting rods 6 limit the paper piece 84.

[0031] At first, the staff places the molded fireworks 2 on the base plate 1, and then the staff starts the loader 83, which drives the paper piece 84 to move, so that the new paper piece 84 moves to the support frame 3. Finally, the staff closes the loader 83 and starts the hydraulic cylinder 4. The contraction of the telescopic rod of the hydraulic cylinder 4 drives the slide plate 72 to move downward, and the downward movement of the slide plate 72 drives the extrusion rod 81 to move downward. At the same time, the downward movement of the slide plate 72 drives the pressing plate 74 to move downward synchronously through the connecting spring 73. The synchronous downward movement of the pressing plate 74 drives the rotating cutter head 82 to move downward synchronously. The downward movement of the pressing plate 74 will contact the paper piece 84 and press the paper piece 84. At the same time, the rotating cutter head 82 will contact the paper piece 84 and cut the paper piece 84 into small discs. Because the rotating cutter head 82 has two notches, the small discs are not disconnected from the paper piece 84. After the pressing plate 74 contacts the paper piece 84, the pressing plate 74 stops moving. At the same time, the slide plate 72 and the extrusion rod 81 continue to move downward. The squeezing rod 81 continues to move downward and contacts the small disc and pushes the small disc to move downward. The small disc moves downward and breaks with the paper 84, making the squeezing rod 81 fit tightly with the small disc. The feed opening on the support frame 3 is large at the top and small at the bottom. The inner diameter of the rotating cutter head 82 is equal to the largest part of the feed opening on the support frame 3. Therefore, the diameter of the small disc cut by the rotating cutter head 82 is larger than the smallest part of the feed opening on the support frame 3. The squeezing rod 81 pushes the small disc to move downward, which will cause the feed opening cone of the support frame 3 to be cut. The small disc contacts the molded firework tube 2, and the small disc continues to move downward, which will bend the outer ring of the small disc through the tapered part on the feed port of the support frame 3, so that the small disc can pass through the support frame 3 and enter the firework tube of the molded firework 2. The bent small disc can better fit the firework tube of the molded firework 2 tightly, so that the injection effect of the small disc is better. After the injection of the small disc is completed, the telescopic rod of the hydraulic cylinder 4 is reset, which will drive the slide plate 72, the connecting spring 73, the pressing plate 74, the extrusion rod 81 and the rotating cutter head 82 to reset.

[0032] Example 2: Based on Example 1, Figure 5-Figure 9As shown, it also includes a punching mechanism, which includes a puncture rod 91, a tension spring 92, a limiting plate frame 93, a pressure plate frame 94 and a tension spring 95. Each squeezing rod 81 is slidably connected to a puncture rod 91, and the puncture rod 91 is used to penetrate the paper 84. A tension spring 92 is connected between each puncture rod 91 and a squeezing rod 81. A limiting plate frame 93 is rotatably connected to several puncture rods 91. The limiting plate frame 93 is slidably connected to the slide 72. Two pressure plate frames 94 are slidably connected to the pressing plate 74. Each pressure plate frame 94 is connected to the pressing plate 74 with two tension springs 95. The elastic force of the tension spring 95 is less than the elastic force of the connecting spring 73.

[0033] The downward movement of the slide plate 72 and the squeezing rod 81 will drive the puncture rod 91, the tension spring 92 and the limiting plate frame 93 to move downward. At the same time, the downward movement of the pressing plate 74 and the rotating cutter head 82 will drive the pressing plate frame 94 and the tension spring 95 to move downward. The pressing plate frame 94 moves downward to contact the paper sheet 84 and fix the paper sheet 84. At the same time, the puncture rod 91 moves downward to contact the paper sheet 84 and penetrate the paper sheet 84. Then the pressing plate 74 and the rotating cutter head 82 continue to move downward to stretch the tension spring 95. The downward movement of the rotating cutter head 82 will cut the paper sheet 84 into small discs. The puncture position of the puncture rod 91 is at the center of the cut small disc. The puncture rod 91 will limit the small disc. The downward movement of the pressing plate 74 will contact the paper sheet 84 and press the paper sheet 84. Finally, the squeezing rod 81 moves downward to contact the small disc and squeeze the small disc downward. The squeezing rod 81 will fit tightly with the small disc, and the piercing rod 91 and the squeezing rod 81 will simultaneously limit the small disc, so that the small disc can be injected into the fireworks tube of the molded firework 2 more stably and accurately, further improving the injection effect of the small disc. The limiting plate frame 93 moves downward and contacts the pressing plate 74, causing the limiting plate frame 93 to stop moving. The slide plate 72 and the squeezing rod 81 will continue to move. The movement of the squeezing rod 81 will stretch the tension spring 92. Finally, the downward movement of the squeezing rod 81 will drive the small disc to be injected into the appropriate position in the fireworks tube of the molded firework 2. After the injection of the small disc is completed, the squeezing rod 81 is reset to reset the tension spring 92. The continued reset of the squeezing rod 81 will drive the piercing rod 91 and the tension spring 92 to reset. The reset of the pressing plate 74 will drive the tension spring 95 to reset. The continued reset of the pressing plate 74 will drive the pressing plate frame 94 and the tension spring 95 to reset.

[0034] Example 3: Based on Example 2, Figure 8-Figure 9As shown, it also includes a rotating mechanism, which includes a rotating tube 101, a fixing frame 102, a ball 1021 and a clamping plate 103. A rotating tube 101 is welded on each extrusion rod 81, and a guide groove is opened on each rotating tube 101. Several fixing frames 102 are fixedly connected to the clamping plate 74, and a ball 1021 is welded on each fixing frame 102. Each ball 1021 contacts the guide groove on a rotating tube 101. A clamping plate 103 is welded on the four rotating tubes 101 located at the four corners of the slide 72, and each clamping plate 103 contacts the limiting plate frame 93. The clamping plate 103 will clamp the limiting plate frame 93.

[0035] The downward movement of the extrusion rod 81 will drive the rotating tube 101 to move downward, and the downward movement of the rotating tube 101 will make the guide groove on the rotating tube 101 contact with the ball 1021, so that the rotating tube 101 rotates. The rotation of the rotating tube 101 will drive the extrusion rod 81 to rotate, and the rotation of the extrusion rod 81 will drive the rotating cutter head 82 to rotate. The rotating cutter head 82 will cut the paper sheet 84 into small discs by rotating, so that the small discs can be cut more completely, thereby making the extrusion rod 81 inject the small discs into the fireworks tube of the molded fireworks 2 more effective. The card plate 103 is fixedly connected to the four rotating tubes 101 at the four corners of the slide 72, and the card plate 103 will clamp the limiting plate frame 93 so that the limiting plate frame 93 and the puncture rod 91 will not be opposite to each other, thereby enabling the puncture rod 91 to puncture the paper sheet 84 better. The rotation of the rotating tube 101 will drive the card plate 103 to rotate, and the card plate 103 will be out of contact with the limiting plate frame 93. Then the resetting of the extrusion rod 81 will drive the resetting of the rotating tube 101, and the resetting of the rotating tube 101 will drive the card plate 103 to reset.

[0036] Example 4: Based on Example 3, Figure 8 As shown, it also includes a mounting frame 111, a pushing frame 112 and a torsion spring 113. Two mounting frames 111 are welded on both sides of the slide 72. The two mounting frames 111 on the same side are a group. Each group of mounting frames 111 is rotatably connected to a pushing frame 112, and a torsion spring 113 is connected between each mounting frame 111 and a pushing frame 112.

[0037] The downward movement of the clamping plate 74 will drive the mounting frame 111, the pushing frame 112 and the torsion spring 113 to move downward. The pushing frame 112 moves downward and contacts the paper piece 84. The pushing frame 112 continues to move downward, which will cause the pushing frame 112 to swing. The swinging of the pushing frame 112 causes the torsion spring 113 to twist. The swinging of the pushing frame 112 will straighten the paper piece 84. After the injection of the small discs is completed, the reset of the clamping plate 74 will drive the mounting frame 111, the pushing frame 112 and the torsion spring 113 to reset upward. The upward reset of the mounting frame 111 will disengage from the paper piece 84. The mounting frame 111 disengages from the paper piece 84 and will be reset driven by the torsion spring 113.

[0038] Example 5: Based on Example 4, Figure 10-11 As shown, it also includes a positioning frame 121, a support spring 122 and a contact block 123. The positioning frame 121 is slidably connected to the support frame 3. Two support springs 122 are connected between the support frame 3 and the positioning frame 121. Two contact blocks 123 are welded on the clamping plate 74.

[0039] The downward movement of the pressing plate 74 will drive the contact block 123 to move downward, and the downward movement of the contact block 123 will contact the positioning frame 121 and push the positioning frame 121 downward. The downward movement of the positioning frame 121 will compress the support spring 122, and the downward movement of the positioning frame 121 will contact the molded firework 2 and push the molded firework 2 to the predetermined position. The reset of the pressing plate 74 will drive the contact block 123 to reset, and the reset of the contact block 123 will cause the positioning frame 121 to reset under the drive of the support spring 122.

[0040] While the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that numerous other embodiments can be devised without departing from the scope of the invention. Accordingly, the scope of the present invention should be limited only by the claims appended hereto.

Claims

1. A paper injection device for fireworks production, characterized in that: The invention comprises a base plate (1), molded fireworks (2), a support frame (3), a hydraulic cylinder (4), a limiting rod (6), a pressing mechanism and an extrusion mechanism. The molded fireworks (2) are placed on the base plate (1), and a plurality of firework tubes are arranged on the molded fireworks (2). The base plate (1) is fixedly connected to the support frame (3), and a plurality of feed ports are opened on the support frame (3). The feed ports on the support frame (3) are tapered. Four hydraulic cylinders (4) are fixedly connected to the upper portion of the base plate (1), and two limiting rods (6) are fixedly connected to the support frame (3). The four hydraulic cylinders (4) are provided with a pressing mechanism, and the pressing mechanism is provided with an extrusion mechanism.

2. A paper injection device for fireworks production according to claim 1, characterized in that: The pressing mechanism comprises a guide rod (71), a slide plate (72), a connecting spring (73) and a pressing plate (74); two guide rods (71) are fixedly connected to the support frame (3); the two guide rods (71) are slidably connected to the slide plate (72); the telescopic rods of the four hydraulic cylinders (4) are fixedly connected to the slide plate (72); the two guide rods (71) are slidably connected to the pressing plate (74); two connecting springs (73) are connected between the pressing plate (74) and the slide plate (72); and the two connecting springs (73) are respectively sleeved on the two guide rods (71).

3. A paper injection device for fireworks production according to claim 2, characterized in that: The extrusion mechanism comprises an extrusion rod (81), a rotating cutter head (82), a feeder (83) and a paper sheet (84); a plurality of extrusion rods (81) are rotatably connected to the slide plate (72); a plurality of rotating cutter heads (82) are rotatably connected to the pressing plate (74); each rotating cutter head (82) has two notches; each extrusion rod (81) is slidably connected to a rotating cutter head (82); a feeder (83) is fixedly connected to one side of the support frame (3); a paper sheet (84) is placed on the feeder (83); the paper sheet (84) contacts the support frame (3); and two limiting rods (6) limit the paper sheet (84).

4. A paper injection device for fireworks production according to claim 3, characterized in that: The invention also includes a punching mechanism, which includes a puncture rod (91), a tension spring (92), a limiting plate frame (93), a pressure plate frame (94) and a tension spring (95). Each extrusion rod (81) is slidably connected to a puncture rod (91), and a tension spring (92) is connected between each puncture rod (91) and an extrusion rod (81). A limiting plate frame (93) is rotatably connected to a plurality of puncture rods (91). The limiting plate frame (93) is slidably connected to the slide plate (72). Two pressure plate frames (94) are slidably connected to the pressure plate (74). Each pressure plate frame (94) is connected to the pressure plate (74) and two tension springs (95). The elastic force of the tension spring (95) is less than the elastic force of the connection spring (73).

5. A paper injection device for fireworks production according to claim 4, characterized in that: The invention also includes a rotating mechanism, which includes a rotating tube (101), a fixing frame (102), a ball (1021) and a clamping plate (103). Each extrusion rod (81) is fixedly connected to a rotating tube (101), and each rotating tube (101) is provided with a guide groove. A plurality of fixing frames (102) are fixedly connected to the pressing plate (74), and each fixing frame (102) is fixedly connected to a ball (1021). Each ball (1021) contacts a guide groove on a rotating tube (101). Four rotating tubes (101) located at the four corners of the slide plate (72) are fixedly connected to a clamping plate (103), and each clamping plate (103) contacts a limiting plate frame (93).

6. A paper injection device for fireworks production according to claim 5, characterized in that: The invention also includes a mounting frame (111), a pushing frame (112) and a torsion spring (113). Two mounting frames (111) are fixedly connected to both sides of the slide plate (72). The two mounting frames (111) on the same side form a group. Each group of mounting frames (111) is rotatably connected to a pushing frame (112). A torsion spring (113) is connected between each mounting frame (111) and a pushing frame (112).

7. A paper injection device for fireworks production according to claim 6, characterized in that: The invention also includes a positioning frame (121), a supporting spring (122) and a contact block (123); the positioning frame (121) is slidably connected to the supporting frame (3); two supporting springs (122) are connected between the supporting frame (3) and the positioning frame (121); and two contact blocks (123) are fixedly connected to the pressing plate (74).

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