Automatic clearing mechanism for scrap of hemming of firer detonator

Abstract

The invention discloses an automatic clearing mechanism for hemming scraped objects of a firer detonator. The automatic clearing mechanism comprises a hemming module, a redundant object clearing module and an upper table top, the hemming module is fixed on the front surface of the upper table top and is used for realizing hemming operation on a product; the redundant material cleaning module is fixed to the back face of the upper table top and used for cleaning redundant materials. According to the mechanism for automatically removing the scraped objects on the hemming edges of the firer detonators, the metal scraped objects can be effectively, continuously and stably removed automatically, a foundation is laid for automatic hemming of products such as the firer detonators, and the problem that the scraped objects are prone to being generated on a hemming tool and cannot be hemmed continuously and automatically during hemming of soft materials is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic removal of metal scrapings, and in particular relates to an automatic removal mechanism for scrapings from curled edges of pyrotechnic detonators. Background Art

[0002] Explosive products such as detonators need to be curled for packaging. Currently, the curling tooling is assembled manually, and the curling is performed using a press. Punches with different angles are replaced to complete the closing of the product. The angle of the curling tooling punch is generally 30°~180°, and 2~4 curling punch tools are designed. During the curling process, the metal chips generated by the curling punches will be cleaned manually at regular intervals to avoid affecting the curling appearance of the product and the curling quality of the product.

[0003] At present, the technology for removing metal chips is mostly applied in the field of machine tools. For example, patent CN107150252B (a metal part milling system and its chip cleaning device) collects the mixed liquid obtained by flushing and mixing the chips and cleaning oil from the circumference of the processing platform, and the system uses the liquid funnel, oil separation mechanism and reflux mechanism to quickly clean the chips generated during the milling process. However, the scrapings generated by the curling of detonators and pyrotechnics will adhere to the inner wall of the curling punch cone, and the scrapings cannot be effectively removed by suction. The above patents are very limited in the removal of scrapings from the curling of detonators and pyrotechnics.

[0004] For another example, in patent CN209157038U (a rivet hole metal shavings removal device), the rotating shaft of the rotating motor of the device is connected to the bristle brush through a connecting block, and a spring is provided under the connecting block to prevent the product from hard collision during the cleaning process. The motor drives the bristle brush to rotate, and the cylinder drives the rotating bristle brush to complete the removal of the metal shavings from the rivet hole. However, this cleaning method cannot achieve an effective cleaning effect on the metal shavings adhering to the curling surface, and cannot ensure that the metal shavings are completely cleaned. For the realization of automatic curling of pyrotechnics such as detonators, the use of this method is very limited.

[0005] It can be seen that the existing automatic curling device cannot meet the needs of automatic curling of detonators and other explosive devices. Summary of the invention

[0006] The technical problem solved by the present invention is: to overcome the shortcomings of the prior art and to provide an automatic removal mechanism for scraping materials from the curling of pyrotechnic detonators, which can realize the effective, continuous and stable automatic removal of metal scraping materials, lay a foundation for the realization of automatic curling of pyrotechnic detonators and other products, and overcome the problem that scraping materials are easily generated on the curling tooling when curling soft materials and cannot be curled automatically and continuously.

[0007] In order to solve the above technical problems, the present invention discloses an automatic cleaning mechanism for scraping objects from curling edge of pyrotechnic detonators, comprising: a curling module, a surplus object cleaning module and an upper table;

[0008] The hemming module is fixed on the front of the upper table and is used to realize the hemming operation of the product;

[0009] The excess cleaning module is fixed on the back of the upper table and is used to clean the excess.

[0010] In the above-mentioned automatic removal mechanism of scraping material from curling of pyrotechnic detonators, the curling module comprises: an upper rotating motor, a curling press, a tooling turntable, a flexible limit head, an upper mounting plate, a curling tooling and a support module;

[0011] The hemming module is fixed to the front side of the upper table through the supporting module;

[0012] The tooling turntable is installed in the middle of the support module;

[0013] The upper rotating motor is connected to the tooling turntable;

[0014] The crimping tool is fixed in the circular mounting hole of the tool turntable;

[0015] The upper mounting plate and the crimping press are respectively fixed to the upper end of the supporting module;

[0016] The flexible limit head is installed on the upper mounting plate.

[0017] In the above-mentioned automatic removal mechanism for scraping material from curling of pyrotechnic detonators, the curling tool is driven by the upper rotary motor to achieve station conversion between the curling station and the scraping material removal station.

[0018] In the above-mentioned automatic removal mechanism for scraping material from the curling edge of pyrotechnic detonators,

[0019] When the hemming tool rotates to the hemming station, the hemming press fixed on the upper end of the support module moves, driving the hemming tool to press down to realize the hemming operation of the product;

[0020] When the curling tool rotates to the scraping object removal station, the curling tool is limited by the flexible limiting head.

[0021] In the above-mentioned automatic cleaning mechanism for scraping materials from curling of pyrotechnic detonators, the curling tool comprises: a curling guide sleeve and a curling inner core; wherein the curling guide sleeve and the curling inner core are fixed on the center rod of the curling tool.

[0022] In the above-mentioned automatic removal mechanism of scraped materials from curling of pyrotechnic detonators, when the curling tool is working, the curling guide sleeve first contacts the product to play a guiding and centering role; then, the curling inner core contacts the curling part of the product under force to complete the curling.

[0023] In the above-mentioned automatic removal mechanism for scraping materials from the curling edge of pyrotechnic detonators, the excess material cleaning module includes: an elastic scraper, a two-way carrier, an elastic grinding head, an injection valve, a connecting rod, a lower rotating motor, a lower telescopic motor, a telescopic main gear, a telescopic sub-gear, a rotating main gear, a rotating sub-gear, a push rod, a rotating cylinder, a spring and a fixed frame module;

[0024] The excess cleaning module is fixed to the back of the upper table through the fixing frame module;

[0025] The lower rotating motor, the lower telescopic motor and the rotating cylinder are respectively installed at the front, middle and rear of the fixed frame module;

[0026] The bidirectional carrier is connected to the rotary cylinder via a connecting rod;

[0027] An elastic scraper and an elastic grinding head are respectively fixed at both ends of the bidirectional carrier;

[0028] A jet valve is arranged on one side of the two-way carrier away from the scraping object removal position, and the jet valve is fixed on the upper table surface through a bracket;

[0029] A spring is installed in the inner cavity of the elastic scraper;

[0030] The groove on the ejector pin cooperates with the boss at the elastic scraper and the elastic grinding head tail;

[0031] A rotating sub-gear is fixed in the middle of the mandrel, and the rotating sub-gear is connected to the rotating main gear through a synchronous belt. The rotating main gear is fixed on the lower rotating motor, and the lower rotating motor drives the mandrel to rotate;

[0032] A telescopic sub-gear is fixed at the tail end of the push rod, and the telescopic sub-gear is connected to the telescopic main gear through a synchronous belt. The telescopic main gear is fixed on the lower telescopic motor, and the action of the lower telescopic motor drives the push rod to move up and down.

[0033] In the above-mentioned automatic cleaning mechanism for scraping objects from the curled edge of pyrotechnic detonators, the rotating cylinder is actuated to realize the position switching of the elastic scraper and the elastic grinding head.

[0034] In the above-mentioned automatic cleaning mechanism for scraping materials from the curling edge of a pyrotechnic detonator, the injection valve is used to inject anhydrous ethanol to the elastic grinding head when the elastic grinding head is working.

[0035] In the above-mentioned automatic removal mechanism of scraped materials from the curling of pyrotechnic detonators, when the elastic scraper is working, the elastic scraper is lifted up and makes a spiral motion, first contacting the curling guide sleeve, and then lifting up and contacting the curling inner core; when contacting the curling inner core, under the action of the curling inner core, the spring inside the elastic scraper is compressed by force, driving the elastic scraper to produce a certain displacement, avoiding a hard collision between the elastic scraper and the curling inner core, and ensuring that the contact between the elastic scraper and the curling inner core is flexible.

[0036] The present invention has the following advantages:

[0037] (1) The present invention discloses an automatic cleaning mechanism for scraping materials from curled edges of explosive detonators, which uses a lower rotating motor and a lower telescopic motor to drive an elastic scraper and an elastic grinding head, thereby realizing automatic cleaning of scraping materials from curled edges.

[0038] (2) The present invention discloses an automatic cleaning mechanism for scraping materials from curled edge of pyrotechnic detonators. An elastic scraper connected to a bidirectional carrier and an elastic grinding head treated with anhydrous ethanol respectively realize the stripping of scraping materials in the curled edge tooling and the secondary cleaning of the scraping materials, thereby realizing the effective removal of scraping materials from the curled edge.

[0039] (3) The present invention discloses an automatic cleaning mechanism for scraping materials from the curling edge of a pyrotechnic detonator. The elastic scraper adopts an automatic grinding path with spiral feeding to achieve comprehensive stripping of scraping materials on the curling edge surface of the curling inner core. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural schematic diagram of an automatic cleaning mechanism for scraping objects from the curling edge of a pyrotechnic detonator according to an embodiment of the present invention;

[0041] Figure 2 is a structural schematic diagram of a curling module in an embodiment of the present invention;

[0042] Figure 3 2 is a schematic structural diagram of a curling module excess material cleaning module according to an embodiment of the present invention;

[0043] Figure 4 It is a working schematic diagram of an elastic scraper in an embodiment of the present invention. DETAILED DESCRIPTION

[0044] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments disclosed in the present invention will be further described in detail below with reference to the accompanying drawings.

[0045] Reference Figures 1 to 3 In this embodiment, the automatic cleaning mechanism for scraping objects from the curling of pyrotechnic detonators includes: a curling module 10, a waste cleaning module 20 and an upper table 30. The curling module 10 is fixed on the front of the upper table 30 to realize the curling operation of the product. The waste cleaning module 20 is fixed on the back of the upper table 30 to realize the cleaning of waste objects.

[0046] In this embodiment, the hemming module 10 mainly includes: an upper rotating motor 101, a hemming press 102, a tooling turntable 103, a flexible stopper 104, an upper mounting plate 105, a hemming tooling 106 and a support module 109. The hemming module 10 is fixed to the front of the upper table 30 through the support module 109; the tooling turntable 103 is installed in the middle of the support module 109; the upper rotating motor 101 is connected to the tooling turntable 103; the hemming tooling 106 is fixed in the circular mounting hole of the tooling turntable 103; the upper mounting plate 105 and the hemming press 102 are respectively fixed to the upper end of the support module 109; and the flexible stopper 104 is installed on the upper mounting plate 105.

[0047] The hemming tool 106 is driven by the upper rotating motor 101 to realize the station conversion between the hemming station and the scraping object removal station. When the hemming tool 106 rotates to the hemming station, the hemming press 102 fixed on the upper end of the support module 109 is actuated to drive the hemming tool 106 to press down to realize the hemming operation of the product; when the hemming tool 106 rotates to the scraping object removal station, the hemming tool 106 is limited by the flexible limit head 104.

[0048] The hemming tool 106 mainly includes: a hemming guide sleeve 107 and a hemming inner core 108. The hemming guide sleeve 107 and the hemming inner core 108 are fixed on the center rod of the hemming tool 106. When the hemming tool 106 is working, the hemming guide sleeve 107 first contacts the product to play a guiding and centering role; then, the hemming inner core 108 contacts the hemming part of the product to complete the hemming.

[0049] In this embodiment, the excess material cleaning module 20 mainly includes: an elastic scraper 201, a bidirectional carrier 202, an elastic grinding head 203, an injection valve 204, a connecting rod 205, a lower rotating motor 206, a lower telescopic motor 207, a telescopic main gear 208, a telescopic sub-gear 209, a rotating main gear 210, a rotating sub-gear 211, a push rod 212, a rotating cylinder 213, a spring 214 and a fixed frame module 215. Among them, the excess cleaning module 20 is fixed to the back of the upper table 30 through the fixing frame module 215; the lower rotating motor 206, the lower telescopic motor 207 and the rotating cylinder 213 are respectively installed at the front, middle and tail of the fixing frame module 215; the two-way carrier 202 is connected to the rotating cylinder 213 through the connecting rod 205; the two ends of the two-way carrier 202 are respectively fixed with an elastic scraper 201 and an elastic grinding head 203; the two-way carrier 202 is provided with an injection valve 204 at the side away from the scraping object removal position, and the injection valve 204 is fixed on the upper table 30 through a bracket; the inner cavity of the elastic scraper 201 is installed with a spring 214; The groove on the push rod 212 cooperates with the boss at the tail of the elastic scraper 201 and the elastic grinding head 203; a rotating sub-gear 211 is fixed in the middle of the push rod 212, and the rotating sub-gear 211 is connected to the rotating main gear 210 through a synchronous belt, and the rotating main gear 210 is fixed on the lower rotating motor 206, and the lower rotating motor 206 drives the push rod 212 to rotate; a telescopic sub-gear 209 is fixed at the tail end of the push rod 212, and the telescopic sub-gear 209 is connected to the telescopic main gear 208 through a synchronous belt, and the telescopic main gear 208 is fixed on the lower telescopic motor 207, and the lower telescopic motor 207 drives the push rod 212 to move up and down. The rotating cylinder 213 is actuated to realize the position switching of the elastic scraper 201 and the elastic grinding head 203. The injection valve 204 is used to spray anhydrous ethanol to the elastic grinding head 203 when the elastic grinding head 203 is working.

[0050] In this embodiment, if Figure 4 As shown, when the elastic scraper 201 is working, the elastic scraper 201 is lifted to make a spiral motion, first contacting the curling guide sleeve 107, and then lifting upward to contact the curling inner core 108; when contacting the curling inner core 108, under the action of the curling inner core 108, the spring 214 inside the elastic scraper 201 is compressed, driving the elastic scraper 201 to produce a certain displacement, avoiding a hard collision between the elastic scraper 201 and the curling inner core 108, and ensuring that the contact between the elastic scraper 201 and the curling inner core 108 is flexible. The scraping object removal test verifies that when the angle deviation between the elastic scraper 201 and the curling inner core 108 is less than 5°, the elastic scraper 201 can stably clean the scraping object. In order to ensure that the scraped object and the curling tooling 106 can be effectively and completely peeled off, the elastic grinding head 203 is subsequently used for secondary cleaning to achieve good results. The elastic scraper 201 is driven by the lower rotating motor 206 and the lower telescopic motor 208, and a scraping path that can fully cover the curling surface is formed by controlling the rotation speed and feed speed.

[0051] In this embodiment, the working principle of the automatic removal mechanism of the scraping material from the edge of the pyrotechnic detonator is as follows:

[0052] After the curling module 10 presses down the curling tool 106 and the product to curl, the upper rotary motor 101 drives the tool turntable 103 to rotate the curling tool 106 to a certain angle to above the excess cleaning module 20 .

[0053] Then, the lower telescopic motor 207 starts to rotate, driving the telescopic sub-gear 209 to rotate through the synchronous belt, driving the push rod 212 to rise, so that the groove of the push rod 212 cooperates with the boss at the tail of the elastic scraper 201.

[0054] Then, the lower rotating motor 206 starts to move, the rotating main gear 210 drives the rotating sub-gear 211 through the synchronous belt, and drives the elastic scraper 201 to start rotating at a certain speed. At the same time, the lower telescopic motor 207 drives the elastic scraper 201 to rise; driven by the lower telescopic motor 207 and the lower rotating motor 206, the inclined surface of the elastic scraper 201 contacts the curling inner core 108, and the scraped material in the curling inner core 108 is cleaned in a spiral path. Among them, after being subjected to the upward force, the curling tool 106 moves upward to the flexible limit head 104 for limiting; after the elastic scraper 201 is subjected to force, the spring 214 is compressed by force to avoid a hard collision with the curling inner core 108.

[0055] After completing the predetermined motion path, the elastic scraper 201 returns to the initial position under the drive of the lower telescopic motor 207 and the lower rotating motor 206. The injection valve 204 located on the other side of the two-way carrier 202 sprays a certain amount of anhydrous ethanol onto the elastic grinding head 203, and the rotating cylinder 213 drives the two-way carrier 202 to rotate the elastic grinding head 203 to the bottom of the curling tool 106. Similarly, the lower telescopic motor 207 and the lower rotating motor 206 are in motion, and the elastic grinding head 203 moves upward to contact the curling inner core 108, and rotates to complete the secondary cleaning of the scraped material.

[0056] The lower telescopic motor 207, the lower rotating motor 206 and the rotating cylinder 213 return to their positions, and the scraping material is automatically cleaned up.

[0057] It should be noted that when the elastic scraper and the elastic grinding head clean the scraped material upward, the curling guide sleeve will be lifted until the elastic scraper and the elastic grinding head contact the curling inner core. The angle of the elastic scraper bevel is consistent with the curling surface of the curling inner core.

[0058] Although the present invention has been disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope of the technical solution of the present invention.

[0059] The contents not described in detail in the specification of the present invention belong to the common knowledge of the professionals in this field.

Claims

1. An automatic cleaning mechanism for scraping material from the curling edge of a pyrotechnic detonator, characterized in that: include: A curling module (10), a surplus material cleaning module (20) and an upper table (30); The curling module (10) is fixed on the front of the upper table (30) and is used to implement the curling operation on the product; The excess material cleaning module (20) is fixed on the back of the upper table (30) and is used to clean the excess materials.

2. The automatic cleaning mechanism for scraping material from the edge of a pyrotechnic detonator according to claim 1 is characterized in that: The curling module (10) comprises: an upper rotating motor (101), a curling press (102), a tooling turntable (103), a flexible limit head (104), an upper mounting plate (105), a curling tooling (106) and a support module (109); The curling module (10) is fixed on the front side of the upper table (30) through the support module (109); The tooling turntable (103) is installed in the middle of the support module (109); The upper rotating motor (101) is connected to the tooling turntable (103); The crimping tool (106) is fixed in the circular mounting hole of the tool turntable (103); The upper mounting plate (105) and the crimping press (102) are respectively fixed to the upper end of the supporting module (109); The flexible limiting head (104) is mounted on the upper mounting plate (105).

3. The automatic cleaning mechanism for scraping material from the edge of a pyrotechnic detonator according to claim 2 is characterized in that: The curling tool (106) is driven by the upper rotating motor (101) to achieve station conversion between the curling station and the scraping object removal station.

4. The automatic cleaning mechanism for scraping material from the edge of a pyrotechnic detonator according to claim 3 is characterized in that: When the hemming tool (106) rotates to the hemming station, the hemming press (102) fixed on the upper end of the support module (109) is activated, driving the hemming tool (106) to press down, thereby realizing the hemming operation on the product; When the curling tool (106) rotates to the scraping object removal station, the curling tool (106) is limited by the flexible limiting head (104).

5. The automatic cleaning mechanism for scraping material from the edge of a pyrotechnic detonator according to claim 2, characterized in that: The curling tool (106) comprises: a curling guide sleeve (107) and a curling inner core (108); wherein the curling guide sleeve (107) and the curling inner core (108) are fixed on the central rod of the curling tool (106).

6. The automatic cleaning mechanism for scraping material from the edge of a pyrotechnic detonator according to claim 5, characterized in that: When the curling tool (106) is working, the curling guide sleeve (107) first contacts the product to play a guiding and centering role; then, the curling inner core (108) contacts the curling part of the product under force to complete the curling.

7. The automatic cleaning mechanism for scraping material from the edge of a pyrotechnic detonator according to claim 6, characterized in that: The excess material cleaning module (20) comprises: an elastic scraper (201), a bidirectional carrier (202), an elastic grinding head (203), an injection valve (204), a connecting rod (205), a lower rotating motor (206), a lower telescopic motor (207), a telescopic main gear (208), a telescopic sub-gear (209), a rotating main gear (210), a rotating sub-gear (211), a push rod (212), a rotating cylinder (213), a spring (214) and a fixing frame module (215); The excess cleaning module (20) is fixed to the back of the upper table (30) via a fixing frame module (215); The lower rotating motor (206), the lower telescopic motor (207) and the rotating cylinder (213) are respectively installed at the front, middle and rear of the fixed frame module (215); The bidirectional carrier (202) is connected to the rotary cylinder (213) via a connecting rod (205); An elastic scraper (201) and an elastic grinding head (203) are respectively fixed at two ends of the bidirectional carrier (202); A spray valve (204) is provided on one side of the bidirectional carrier (202) away from the scraping object removal position, and the spray valve (204) is fixed on the upper table surface (30) through a bracket; A spring (214) is installed in the inner cavity of the elastic scraper (201); The groove on the push rod (212) cooperates with the boss at the tail of the elastic scraper (201) and the elastic grinding head (203); A rotating sub-gear (211) is fixed in the middle of the push rod (212), the rotating sub-gear (211) is connected to the rotating main gear (210) through a synchronous belt, the rotating main gear (210) is fixed on the lower rotating motor (206), and the lower rotating motor (206) drives the push rod (212) to rotate; A telescopic sub-gear (209) is fixed to the rear end of the push rod (212), and the telescopic sub-gear (209) is connected to the telescopic main gear (208) through a synchronous belt. The telescopic main gear (208) is fixed on the lower telescopic motor (207), and the lower telescopic motor (207) drives the push rod (212) to move up and down.

8. The automatic cleaning mechanism for scraping material from the edge of a pyrotechnic detonator according to claim 7, characterized in that: The rotating cylinder (213) is actuated to achieve position switching of the elastic scraper (201) and the elastic grinding head (203).

9. The automatic cleaning mechanism for scraping material from the edge of a pyrotechnic detonator according to claim 7, characterized in that: The injection valve (204) is used to inject anhydrous ethanol toward the elastic grinding head (203) when the elastic grinding head (203) is working.

10. The automatic cleaning mechanism for scraping material from the edge of a pyrotechnic detonator according to claim 7, characterized in that: When the elastic scraper (201) is working, the elastic scraper (201) is lifted to make a spiral motion, first contacting the curling guide sleeve (107), and then lifting upward to contact the curling inner core (108); when contacting the curling inner core (108), under the action of the curling inner core (108), the spring (214) inside the elastic scraper (201) is compressed, driving the elastic scraper (201) to produce a certain displacement, avoiding a hard collision between the elastic scraper (201) and the curling inner core (108), and ensuring that the contact between the elastic scraper (201) and the curling inner core (108) is flexible.

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